ResourceTypes.cpp revision 7322ea7b73000ef50be18d72750624bb1832dec4 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "ResourceType"
18//#define LOG_NDEBUG 0
19
20#include <androidfw/ResourceTypes.h>
21#include <utils/Atomic.h>
22#include <utils/ByteOrder.h>
23#include <utils/Debug.h>
24#include <utils/Log.h>
25#include <utils/String16.h>
26#include <utils/String8.h>
27
28#include <stdlib.h>
29#include <string.h>
30#include <memory.h>
31#include <ctype.h>
32#include <stdint.h>
33
34#ifndef INT32_MAX
35#define INT32_MAX ((int32_t)(2147483647))
36#endif
37
38#define STRING_POOL_NOISY(x) //x
39#define XML_NOISY(x) //x
40#define TABLE_NOISY(x) //x
41#define TABLE_GETENTRY(x) //x
42#define TABLE_SUPER_NOISY(x) //x
43#define LOAD_TABLE_NOISY(x) //x
44#define TABLE_THEME(x) //x
45#define LIB_NOISY(x) x
46
47namespace android {
48
49#ifdef HAVE_WINSOCK
50#undef  nhtol
51#undef  htonl
52
53#ifdef HAVE_LITTLE_ENDIAN
54#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
55#define htonl(x)    ntohl(x)
56#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
57#define htons(x)    ntohs(x)
58#else
59#define ntohl(x)    (x)
60#define htonl(x)    (x)
61#define ntohs(x)    (x)
62#define htons(x)    (x)
63#endif
64#endif
65
66#define IDMAP_MAGIC         0x706d6469
67// size measured in sizeof(uint32_t)
68#define IDMAP_HEADER_SIZE (ResTable::IDMAP_HEADER_SIZE_BYTES / sizeof(uint32_t))
69
70#define APP_PACKAGE_ID      0x7f
71#define SYS_PACKAGE_ID      0x01
72
73// Standard C isspace() is only required to look at the low byte of its input, so
74// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
75// any high-byte UTF-16 code point is not whitespace.
76inline int isspace16(char16_t c) {
77    return (c < 0x0080 && isspace(c));
78}
79
80// range checked; guaranteed to NUL-terminate within the stated number of available slots
81// NOTE: if this truncates the dst string due to running out of space, no attempt is
82// made to avoid splitting surrogate pairs.
83static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
84{
85    uint16_t* last = dst + avail - 1;
86    while (*src && (dst < last)) {
87        char16_t s = dtohs(*src);
88        *dst++ = s;
89        src++;
90    }
91    *dst = 0;
92}
93
94static status_t validate_chunk(const ResChunk_header* chunk,
95                               size_t minSize,
96                               const uint8_t* dataEnd,
97                               const char* name)
98{
99    const uint16_t headerSize = dtohs(chunk->headerSize);
100    const uint32_t size = dtohl(chunk->size);
101
102    if (headerSize >= minSize) {
103        if (headerSize <= size) {
104            if (((headerSize|size)&0x3) == 0) {
105                if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) {
106                    return NO_ERROR;
107                }
108                ALOGW("%s data size 0x%x extends beyond resource end %p.",
109                     name, size, (void*)(dataEnd-((const uint8_t*)chunk)));
110                return BAD_TYPE;
111            }
112            ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
113                 name, (int)size, (int)headerSize);
114            return BAD_TYPE;
115        }
116        ALOGW("%s size 0x%x is smaller than header size 0x%x.",
117             name, size, headerSize);
118        return BAD_TYPE;
119    }
120    ALOGW("%s header size 0x%04x is too small.",
121         name, headerSize);
122    return BAD_TYPE;
123}
124
125static void fill9patchOffsets(Res_png_9patch* patch) {
126    patch->xDivsOffset = sizeof(Res_png_9patch);
127    patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t));
128    patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t));
129}
130
131inline void Res_value::copyFrom_dtoh(const Res_value& src)
132{
133    size = dtohs(src.size);
134    res0 = src.res0;
135    dataType = src.dataType;
136    data = dtohl(src.data);
137}
138
139void Res_png_9patch::deviceToFile()
140{
141    int32_t* xDivs = getXDivs();
142    for (int i = 0; i < numXDivs; i++) {
143        xDivs[i] = htonl(xDivs[i]);
144    }
145    int32_t* yDivs = getYDivs();
146    for (int i = 0; i < numYDivs; i++) {
147        yDivs[i] = htonl(yDivs[i]);
148    }
149    paddingLeft = htonl(paddingLeft);
150    paddingRight = htonl(paddingRight);
151    paddingTop = htonl(paddingTop);
152    paddingBottom = htonl(paddingBottom);
153    uint32_t* colors = getColors();
154    for (int i=0; i<numColors; i++) {
155        colors[i] = htonl(colors[i]);
156    }
157}
158
159void Res_png_9patch::fileToDevice()
160{
161    int32_t* xDivs = getXDivs();
162    for (int i = 0; i < numXDivs; i++) {
163        xDivs[i] = ntohl(xDivs[i]);
164    }
165    int32_t* yDivs = getYDivs();
166    for (int i = 0; i < numYDivs; i++) {
167        yDivs[i] = ntohl(yDivs[i]);
168    }
169    paddingLeft = ntohl(paddingLeft);
170    paddingRight = ntohl(paddingRight);
171    paddingTop = ntohl(paddingTop);
172    paddingBottom = ntohl(paddingBottom);
173    uint32_t* colors = getColors();
174    for (int i=0; i<numColors; i++) {
175        colors[i] = ntohl(colors[i]);
176    }
177}
178
179size_t Res_png_9patch::serializedSize() const
180{
181    // The size of this struct is 32 bytes on the 32-bit target system
182    // 4 * int8_t
183    // 4 * int32_t
184    // 3 * uint32_t
185    return 32
186            + numXDivs * sizeof(int32_t)
187            + numYDivs * sizeof(int32_t)
188            + numColors * sizeof(uint32_t);
189}
190
191void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
192                                const int32_t* yDivs, const uint32_t* colors)
193{
194    // Use calloc since we're going to leave a few holes in the data
195    // and want this to run cleanly under valgrind
196    void* newData = calloc(1, patch.serializedSize());
197    serialize(patch, xDivs, yDivs, colors, newData);
198    return newData;
199}
200
201void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
202                               const int32_t* yDivs, const uint32_t* colors, void* outData)
203{
204    uint8_t* data = (uint8_t*) outData;
205    memcpy(data, &patch.wasDeserialized, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
206    memcpy(data + 12, &patch.paddingLeft, 16);   // copy paddingXXXX
207    data += 32;
208
209    memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t));
210    data +=  patch.numXDivs * sizeof(int32_t);
211    memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t));
212    data +=  patch.numYDivs * sizeof(int32_t);
213    memcpy(data, colors, patch.numColors * sizeof(uint32_t));
214
215    fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData));
216}
217
218static bool assertIdmapHeader(const uint32_t* map, size_t sizeBytes)
219{
220    if (sizeBytes < ResTable::IDMAP_HEADER_SIZE_BYTES) {
221        ALOGW("idmap assertion failed: size=%d bytes\n", (int)sizeBytes);
222        return false;
223    }
224    if (*map != htodl(IDMAP_MAGIC)) { // htodl: map data expected to be in correct endianess
225        ALOGW("idmap assertion failed: invalid magic found (is 0x%08x, expected 0x%08x)\n",
226             *map, htodl(IDMAP_MAGIC));
227        return false;
228    }
229    return true;
230}
231
232static status_t idmapLookup(const uint32_t* map, size_t sizeBytes, uint32_t key, uint32_t* outValue)
233{
234    // see README for details on the format of map
235    if (!assertIdmapHeader(map, sizeBytes)) {
236        return UNKNOWN_ERROR;
237    }
238    map = map + IDMAP_HEADER_SIZE; // skip ahead to data segment
239    // size of data block, in uint32_t
240    const size_t size = (sizeBytes - ResTable::IDMAP_HEADER_SIZE_BYTES) / sizeof(uint32_t);
241    const uint32_t type = Res_GETTYPE(key) + 1; // add one, idmap stores "public" type id
242    const uint32_t entry = Res_GETENTRY(key);
243    const uint32_t typeCount = *map;
244
245    if (type > typeCount) {
246        ALOGW("Resource ID map: type=%d exceeds number of types=%d\n", type, typeCount);
247        return UNKNOWN_ERROR;
248    }
249    if (typeCount > size) {
250        ALOGW("Resource ID map: number of types=%d exceeds size of map=%d\n", typeCount, (int)size);
251        return UNKNOWN_ERROR;
252    }
253    const uint32_t typeOffset = map[type];
254    if (typeOffset == 0) {
255        *outValue = 0;
256        return NO_ERROR;
257    }
258    if (typeOffset + 1 > size) {
259        ALOGW("Resource ID map: type offset=%d exceeds reasonable value, size of map=%d\n",
260             typeOffset, (int)size);
261        return UNKNOWN_ERROR;
262    }
263    const uint32_t entryCount = map[typeOffset];
264    const uint32_t entryOffset = map[typeOffset + 1];
265    if (entryCount == 0 || entry < entryOffset || entry - entryOffset > entryCount - 1) {
266        *outValue = 0;
267        return NO_ERROR;
268    }
269    const uint32_t index = typeOffset + 2 + entry - entryOffset;
270    if (index > size) {
271        ALOGW("Resource ID map: entry index=%u exceeds size of map=%d\n", index, (int)size);
272        *outValue = 0;
273        return NO_ERROR;
274    }
275    *outValue = map[index];
276
277    return NO_ERROR;
278}
279
280static status_t getIdmapPackageId(const uint32_t* map, size_t mapSize, uint32_t *outId)
281{
282    if (!assertIdmapHeader(map, mapSize)) {
283        return UNKNOWN_ERROR;
284    }
285    if (mapSize <= IDMAP_HEADER_SIZE + 1) {
286        ALOGW("corrupt idmap: map size %d too short\n", (int)mapSize);
287        return UNKNOWN_ERROR;
288    }
289    uint32_t typeCount = *(map + IDMAP_HEADER_SIZE);
290    if (typeCount == 0) {
291        ALOGW("corrupt idmap: no types\n");
292        return UNKNOWN_ERROR;
293    }
294    if (IDMAP_HEADER_SIZE + 1 + typeCount > mapSize) {
295        ALOGW("corrupt idmap: number of types %u extends past idmap size %d\n", typeCount, (int)mapSize);
296        return UNKNOWN_ERROR;
297    }
298    const uint32_t* p = map + IDMAP_HEADER_SIZE + 1;
299    // find first defined type
300    while (*p == 0) {
301        ++p;
302        if (--typeCount == 0) {
303            ALOGW("corrupt idmap: types declared, none found\n");
304            return UNKNOWN_ERROR;
305        }
306    }
307
308    // determine package id from first entry of first type
309    const uint32_t offset = *p + IDMAP_HEADER_SIZE + 2;
310    if (offset > mapSize) {
311        ALOGW("corrupt idmap: entry offset %u points outside map size %d\n", offset, (int)mapSize);
312        return UNKNOWN_ERROR;
313    }
314    *outId = (map[offset] >> 24) & 0x000000ff;
315
316    return NO_ERROR;
317}
318
319Res_png_9patch* Res_png_9patch::deserialize(void* inData)
320{
321
322    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData);
323    patch->wasDeserialized = true;
324    fill9patchOffsets(patch);
325
326    return patch;
327}
328
329// --------------------------------------------------------------------
330// --------------------------------------------------------------------
331// --------------------------------------------------------------------
332
333ResStringPool::ResStringPool()
334    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
335{
336}
337
338ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
339    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
340{
341    setTo(data, size, copyData);
342}
343
344ResStringPool::~ResStringPool()
345{
346    uninit();
347}
348
349void ResStringPool::setToEmpty()
350{
351    uninit();
352
353    mOwnedData = calloc(1, sizeof(ResStringPool_header));
354    ResStringPool_header* header = (ResStringPool_header*) mOwnedData;
355    mSize = 0;
356    mEntries = NULL;
357    mStrings = NULL;
358    mStringPoolSize = 0;
359    mEntryStyles = NULL;
360    mStyles = NULL;
361    mStylePoolSize = 0;
362    mHeader = (const ResStringPool_header*) header;
363}
364
365status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
366{
367    if (!data || !size) {
368        return (mError=BAD_TYPE);
369    }
370
371    uninit();
372
373    const bool notDeviceEndian = htods(0xf0) != 0xf0;
374
375    if (copyData || notDeviceEndian) {
376        mOwnedData = malloc(size);
377        if (mOwnedData == NULL) {
378            return (mError=NO_MEMORY);
379        }
380        memcpy(mOwnedData, data, size);
381        data = mOwnedData;
382    }
383
384    mHeader = (const ResStringPool_header*)data;
385
386    if (notDeviceEndian) {
387        ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
388        h->header.headerSize = dtohs(mHeader->header.headerSize);
389        h->header.type = dtohs(mHeader->header.type);
390        h->header.size = dtohl(mHeader->header.size);
391        h->stringCount = dtohl(mHeader->stringCount);
392        h->styleCount = dtohl(mHeader->styleCount);
393        h->flags = dtohl(mHeader->flags);
394        h->stringsStart = dtohl(mHeader->stringsStart);
395        h->stylesStart = dtohl(mHeader->stylesStart);
396    }
397
398    if (mHeader->header.headerSize > mHeader->header.size
399            || mHeader->header.size > size) {
400        ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
401                (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
402        return (mError=BAD_TYPE);
403    }
404    mSize = mHeader->header.size;
405    mEntries = (const uint32_t*)
406        (((const uint8_t*)data)+mHeader->header.headerSize);
407
408    if (mHeader->stringCount > 0) {
409        if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount)  // uint32 overflow?
410            || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
411                > size) {
412            ALOGW("Bad string block: entry of %d items extends past data size %d\n",
413                    (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
414                    (int)size);
415            return (mError=BAD_TYPE);
416        }
417
418        size_t charSize;
419        if (mHeader->flags&ResStringPool_header::UTF8_FLAG) {
420            charSize = sizeof(uint8_t);
421        } else {
422            charSize = sizeof(char16_t);
423        }
424
425        mStrings = (const void*)
426            (((const uint8_t*)data)+mHeader->stringsStart);
427        if (mHeader->stringsStart >= (mHeader->header.size-sizeof(uint16_t))) {
428            ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
429                    (int)mHeader->stringsStart, (int)mHeader->header.size);
430            return (mError=BAD_TYPE);
431        }
432        if (mHeader->styleCount == 0) {
433            mStringPoolSize =
434                (mHeader->header.size-mHeader->stringsStart)/charSize;
435        } else {
436            // check invariant: styles starts before end of data
437            if (mHeader->stylesStart >= (mHeader->header.size-sizeof(uint16_t))) {
438                ALOGW("Bad style block: style block starts at %d past data size of %d\n",
439                    (int)mHeader->stylesStart, (int)mHeader->header.size);
440                return (mError=BAD_TYPE);
441            }
442            // check invariant: styles follow the strings
443            if (mHeader->stylesStart <= mHeader->stringsStart) {
444                ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
445                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
446                return (mError=BAD_TYPE);
447            }
448            mStringPoolSize =
449                (mHeader->stylesStart-mHeader->stringsStart)/charSize;
450        }
451
452        // check invariant: stringCount > 0 requires a string pool to exist
453        if (mStringPoolSize == 0) {
454            ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
455            return (mError=BAD_TYPE);
456        }
457
458        if (notDeviceEndian) {
459            size_t i;
460            uint32_t* e = const_cast<uint32_t*>(mEntries);
461            for (i=0; i<mHeader->stringCount; i++) {
462                e[i] = dtohl(mEntries[i]);
463            }
464            if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
465                const char16_t* strings = (const char16_t*)mStrings;
466                char16_t* s = const_cast<char16_t*>(strings);
467                for (i=0; i<mStringPoolSize; i++) {
468                    s[i] = dtohs(strings[i]);
469                }
470            }
471        }
472
473        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
474                ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
475                (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
476                ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
477            ALOGW("Bad string block: last string is not 0-terminated\n");
478            return (mError=BAD_TYPE);
479        }
480    } else {
481        mStrings = NULL;
482        mStringPoolSize = 0;
483    }
484
485    if (mHeader->styleCount > 0) {
486        mEntryStyles = mEntries + mHeader->stringCount;
487        // invariant: integer overflow in calculating mEntryStyles
488        if (mEntryStyles < mEntries) {
489            ALOGW("Bad string block: integer overflow finding styles\n");
490            return (mError=BAD_TYPE);
491        }
492
493        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
494            ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
495                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
496                    (int)size);
497            return (mError=BAD_TYPE);
498        }
499        mStyles = (const uint32_t*)
500            (((const uint8_t*)data)+mHeader->stylesStart);
501        if (mHeader->stylesStart >= mHeader->header.size) {
502            ALOGW("Bad string block: style pool starts %d, after total size %d\n",
503                    (int)mHeader->stylesStart, (int)mHeader->header.size);
504            return (mError=BAD_TYPE);
505        }
506        mStylePoolSize =
507            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
508
509        if (notDeviceEndian) {
510            size_t i;
511            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
512            for (i=0; i<mHeader->styleCount; i++) {
513                e[i] = dtohl(mEntryStyles[i]);
514            }
515            uint32_t* s = const_cast<uint32_t*>(mStyles);
516            for (i=0; i<mStylePoolSize; i++) {
517                s[i] = dtohl(mStyles[i]);
518            }
519        }
520
521        const ResStringPool_span endSpan = {
522            { htodl(ResStringPool_span::END) },
523            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
524        };
525        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
526                   &endSpan, sizeof(endSpan)) != 0) {
527            ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
528            return (mError=BAD_TYPE);
529        }
530    } else {
531        mEntryStyles = NULL;
532        mStyles = NULL;
533        mStylePoolSize = 0;
534    }
535
536    return (mError=NO_ERROR);
537}
538
539status_t ResStringPool::getError() const
540{
541    return mError;
542}
543
544void ResStringPool::uninit()
545{
546    mError = NO_INIT;
547    if (mHeader != NULL && mCache != NULL) {
548        for (size_t x = 0; x < mHeader->stringCount; x++) {
549            if (mCache[x] != NULL) {
550                free(mCache[x]);
551                mCache[x] = NULL;
552            }
553        }
554        free(mCache);
555        mCache = NULL;
556    }
557    if (mOwnedData) {
558        free(mOwnedData);
559        mOwnedData = NULL;
560    }
561}
562
563/**
564 * Strings in UTF-16 format have length indicated by a length encoded in the
565 * stored data. It is either 1 or 2 characters of length data. This allows a
566 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
567 * much data in a string, you're abusing them.
568 *
569 * If the high bit is set, then there are two characters or 4 bytes of length
570 * data encoded. In that case, drop the high bit of the first character and
571 * add it together with the next character.
572 */
573static inline size_t
574decodeLength(const char16_t** str)
575{
576    size_t len = **str;
577    if ((len & 0x8000) != 0) {
578        (*str)++;
579        len = ((len & 0x7FFF) << 16) | **str;
580    }
581    (*str)++;
582    return len;
583}
584
585/**
586 * Strings in UTF-8 format have length indicated by a length encoded in the
587 * stored data. It is either 1 or 2 characters of length data. This allows a
588 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
589 * text in another way if you're using that much data in a single string.
590 *
591 * If the high bit is set, then there are two characters or 2 bytes of length
592 * data encoded. In that case, drop the high bit of the first character and
593 * add it together with the next character.
594 */
595static inline size_t
596decodeLength(const uint8_t** str)
597{
598    size_t len = **str;
599    if ((len & 0x80) != 0) {
600        (*str)++;
601        len = ((len & 0x7F) << 8) | **str;
602    }
603    (*str)++;
604    return len;
605}
606
607const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
608{
609    if (mError == NO_ERROR && idx < mHeader->stringCount) {
610        const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
611        const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
612        if (off < (mStringPoolSize-1)) {
613            if (!isUTF8) {
614                const char16_t* strings = (char16_t*)mStrings;
615                const char16_t* str = strings+off;
616
617                *u16len = decodeLength(&str);
618                if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
619                    return str;
620                } else {
621                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
622                            (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
623                }
624            } else {
625                const uint8_t* strings = (uint8_t*)mStrings;
626                const uint8_t* u8str = strings+off;
627
628                *u16len = decodeLength(&u8str);
629                size_t u8len = decodeLength(&u8str);
630
631                // encLen must be less than 0x7FFF due to encoding.
632                if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
633                    AutoMutex lock(mDecodeLock);
634
635                    if (mCache == NULL) {
636#ifndef HAVE_ANDROID_OS
637                        STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
638                                mHeader->stringCount*sizeof(char16_t**)));
639#else
640                        // We do not want to be in this case when actually running Android.
641                        ALOGW("CREATING STRING CACHE OF %d bytes",
642                                mHeader->stringCount*sizeof(char16_t**));
643#endif
644                        mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
645                        if (mCache == NULL) {
646                            ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
647                                    (int)(mHeader->stringCount*sizeof(char16_t**)));
648                            return NULL;
649                        }
650                    }
651
652                    if (mCache[idx] != NULL) {
653                        return mCache[idx];
654                    }
655
656                    ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
657                    if (actualLen < 0 || (size_t)actualLen != *u16len) {
658                        ALOGW("Bad string block: string #%lld decoded length is not correct "
659                                "%lld vs %llu\n",
660                                (long long)idx, (long long)actualLen, (long long)*u16len);
661                        return NULL;
662                    }
663
664                    char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
665                    if (!u16str) {
666                        ALOGW("No memory when trying to allocate decode cache for string #%d\n",
667                                (int)idx);
668                        return NULL;
669                    }
670
671                    STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
672                    utf8_to_utf16(u8str, u8len, u16str);
673                    mCache[idx] = u16str;
674                    return u16str;
675                } else {
676                    ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
677                            (long long)idx, (long long)(u8str+u8len-strings),
678                            (long long)mStringPoolSize);
679                }
680            }
681        } else {
682            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
683                    (int)idx, (int)(off*sizeof(uint16_t)),
684                    (int)(mStringPoolSize*sizeof(uint16_t)));
685        }
686    }
687    return NULL;
688}
689
690const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
691{
692    if (mError == NO_ERROR && idx < mHeader->stringCount) {
693        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
694            return NULL;
695        }
696        const uint32_t off = mEntries[idx]/sizeof(char);
697        if (off < (mStringPoolSize-1)) {
698            const uint8_t* strings = (uint8_t*)mStrings;
699            const uint8_t* str = strings+off;
700            *outLen = decodeLength(&str);
701            size_t encLen = decodeLength(&str);
702            if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
703                return (const char*)str;
704            } else {
705                ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
706                        (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
707            }
708        } else {
709            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
710                    (int)idx, (int)(off*sizeof(uint16_t)),
711                    (int)(mStringPoolSize*sizeof(uint16_t)));
712        }
713    }
714    return NULL;
715}
716
717const String8 ResStringPool::string8ObjectAt(size_t idx) const
718{
719    size_t len;
720    const char *str = (const char*)string8At(idx, &len);
721    if (str != NULL) {
722        return String8(str);
723    }
724    return String8(stringAt(idx, &len));
725}
726
727const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
728{
729    return styleAt(ref.index);
730}
731
732const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
733{
734    if (mError == NO_ERROR && idx < mHeader->styleCount) {
735        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
736        if (off < mStylePoolSize) {
737            return (const ResStringPool_span*)(mStyles+off);
738        } else {
739            ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
740                    (int)idx, (int)(off*sizeof(uint32_t)),
741                    (int)(mStylePoolSize*sizeof(uint32_t)));
742        }
743    }
744    return NULL;
745}
746
747ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
748{
749    if (mError != NO_ERROR) {
750        return mError;
751    }
752
753    size_t len;
754
755    if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
756        STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
757
758        // The string pool contains UTF 8 strings; we don't want to cause
759        // temporary UTF-16 strings to be created as we search.
760        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
761            // Do a binary search for the string...  this is a little tricky,
762            // because the strings are sorted with strzcmp16().  So to match
763            // the ordering, we need to convert strings in the pool to UTF-16.
764            // But we don't want to hit the cache, so instead we will have a
765            // local temporary allocation for the conversions.
766            char16_t* convBuffer = (char16_t*)malloc(strLen+4);
767            ssize_t l = 0;
768            ssize_t h = mHeader->stringCount-1;
769
770            ssize_t mid;
771            while (l <= h) {
772                mid = l + (h - l)/2;
773                const uint8_t* s = (const uint8_t*)string8At(mid, &len);
774                int c;
775                if (s != NULL) {
776                    char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
777                    *end = 0;
778                    c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
779                } else {
780                    c = -1;
781                }
782                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
783                             (const char*)s, c, (int)l, (int)mid, (int)h));
784                if (c == 0) {
785                    STRING_POOL_NOISY(ALOGI("MATCH!"));
786                    free(convBuffer);
787                    return mid;
788                } else if (c < 0) {
789                    l = mid + 1;
790                } else {
791                    h = mid - 1;
792                }
793            }
794            free(convBuffer);
795        } else {
796            // It is unusual to get the ID from an unsorted string block...
797            // most often this happens because we want to get IDs for style
798            // span tags; since those always appear at the end of the string
799            // block, start searching at the back.
800            String8 str8(str, strLen);
801            const size_t str8Len = str8.size();
802            for (int i=mHeader->stringCount-1; i>=0; i--) {
803                const char* s = string8At(i, &len);
804                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
805                             String8(s).string(),
806                             i));
807                if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
808                    STRING_POOL_NOISY(ALOGI("MATCH!"));
809                    return i;
810                }
811            }
812        }
813
814    } else {
815        STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
816
817        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
818            // Do a binary search for the string...
819            ssize_t l = 0;
820            ssize_t h = mHeader->stringCount-1;
821
822            ssize_t mid;
823            while (l <= h) {
824                mid = l + (h - l)/2;
825                const char16_t* s = stringAt(mid, &len);
826                int c = s ? strzcmp16(s, len, str, strLen) : -1;
827                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
828                             String8(s).string(),
829                             c, (int)l, (int)mid, (int)h));
830                if (c == 0) {
831                    STRING_POOL_NOISY(ALOGI("MATCH!"));
832                    return mid;
833                } else if (c < 0) {
834                    l = mid + 1;
835                } else {
836                    h = mid - 1;
837                }
838            }
839        } else {
840            // It is unusual to get the ID from an unsorted string block...
841            // most often this happens because we want to get IDs for style
842            // span tags; since those always appear at the end of the string
843            // block, start searching at the back.
844            for (int i=mHeader->stringCount-1; i>=0; i--) {
845                const char16_t* s = stringAt(i, &len);
846                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
847                             String8(s).string(),
848                             i));
849                if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
850                    STRING_POOL_NOISY(ALOGI("MATCH!"));
851                    return i;
852                }
853            }
854        }
855    }
856
857    return NAME_NOT_FOUND;
858}
859
860size_t ResStringPool::size() const
861{
862    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
863}
864
865size_t ResStringPool::styleCount() const
866{
867    return (mError == NO_ERROR) ? mHeader->styleCount : 0;
868}
869
870size_t ResStringPool::bytes() const
871{
872    return (mError == NO_ERROR) ? mHeader->header.size : 0;
873}
874
875bool ResStringPool::isSorted() const
876{
877    return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
878}
879
880bool ResStringPool::isUTF8() const
881{
882    return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
883}
884
885// --------------------------------------------------------------------
886// --------------------------------------------------------------------
887// --------------------------------------------------------------------
888
889ResXMLParser::ResXMLParser(const ResXMLTree& tree)
890    : mTree(tree), mEventCode(BAD_DOCUMENT)
891{
892}
893
894void ResXMLParser::restart()
895{
896    mCurNode = NULL;
897    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
898}
899const ResStringPool& ResXMLParser::getStrings() const
900{
901    return mTree.mStrings;
902}
903
904ResXMLParser::event_code_t ResXMLParser::getEventType() const
905{
906    return mEventCode;
907}
908
909ResXMLParser::event_code_t ResXMLParser::next()
910{
911    if (mEventCode == START_DOCUMENT) {
912        mCurNode = mTree.mRootNode;
913        mCurExt = mTree.mRootExt;
914        return (mEventCode=mTree.mRootCode);
915    } else if (mEventCode >= FIRST_CHUNK_CODE) {
916        return nextNode();
917    }
918    return mEventCode;
919}
920
921int32_t ResXMLParser::getCommentID() const
922{
923    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
924}
925
926const uint16_t* ResXMLParser::getComment(size_t* outLen) const
927{
928    int32_t id = getCommentID();
929    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
930}
931
932uint32_t ResXMLParser::getLineNumber() const
933{
934    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
935}
936
937int32_t ResXMLParser::getTextID() const
938{
939    if (mEventCode == TEXT) {
940        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
941    }
942    return -1;
943}
944
945const uint16_t* ResXMLParser::getText(size_t* outLen) const
946{
947    int32_t id = getTextID();
948    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
949}
950
951ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
952{
953    if (mEventCode == TEXT) {
954        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
955        return sizeof(Res_value);
956    }
957    return BAD_TYPE;
958}
959
960int32_t ResXMLParser::getNamespacePrefixID() const
961{
962    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
963        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
964    }
965    return -1;
966}
967
968const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
969{
970    int32_t id = getNamespacePrefixID();
971    //printf("prefix=%d  event=%p\n", id, mEventCode);
972    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
973}
974
975int32_t ResXMLParser::getNamespaceUriID() const
976{
977    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
978        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
979    }
980    return -1;
981}
982
983const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
984{
985    int32_t id = getNamespaceUriID();
986    //printf("uri=%d  event=%p\n", id, mEventCode);
987    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
988}
989
990int32_t ResXMLParser::getElementNamespaceID() const
991{
992    if (mEventCode == START_TAG) {
993        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
994    }
995    if (mEventCode == END_TAG) {
996        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
997    }
998    return -1;
999}
1000
1001const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
1002{
1003    int32_t id = getElementNamespaceID();
1004    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1005}
1006
1007int32_t ResXMLParser::getElementNameID() const
1008{
1009    if (mEventCode == START_TAG) {
1010        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
1011    }
1012    if (mEventCode == END_TAG) {
1013        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
1014    }
1015    return -1;
1016}
1017
1018const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
1019{
1020    int32_t id = getElementNameID();
1021    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1022}
1023
1024size_t ResXMLParser::getAttributeCount() const
1025{
1026    if (mEventCode == START_TAG) {
1027        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
1028    }
1029    return 0;
1030}
1031
1032int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
1033{
1034    if (mEventCode == START_TAG) {
1035        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1036        if (idx < dtohs(tag->attributeCount)) {
1037            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1038                (((const uint8_t*)tag)
1039                 + dtohs(tag->attributeStart)
1040                 + (dtohs(tag->attributeSize)*idx));
1041            return dtohl(attr->ns.index);
1042        }
1043    }
1044    return -2;
1045}
1046
1047const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1048{
1049    int32_t id = getAttributeNamespaceID(idx);
1050    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1051    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1052    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1053}
1054
1055const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const
1056{
1057    int32_t id = getAttributeNamespaceID(idx);
1058    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1059    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1060    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1061}
1062
1063int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1064{
1065    if (mEventCode == START_TAG) {
1066        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1067        if (idx < dtohs(tag->attributeCount)) {
1068            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1069                (((const uint8_t*)tag)
1070                 + dtohs(tag->attributeStart)
1071                 + (dtohs(tag->attributeSize)*idx));
1072            return dtohl(attr->name.index);
1073        }
1074    }
1075    return -1;
1076}
1077
1078const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1079{
1080    int32_t id = getAttributeNameID(idx);
1081    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1082    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1083    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1084}
1085
1086const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const
1087{
1088    int32_t id = getAttributeNameID(idx);
1089    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1090    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1091    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1092}
1093
1094uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1095{
1096    int32_t id = getAttributeNameID(idx);
1097    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1098        return dtohl(mTree.mResIds[id]);
1099    }
1100    return 0;
1101}
1102
1103int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
1104{
1105    if (mEventCode == START_TAG) {
1106        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1107        if (idx < dtohs(tag->attributeCount)) {
1108            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1109                (((const uint8_t*)tag)
1110                 + dtohs(tag->attributeStart)
1111                 + (dtohs(tag->attributeSize)*idx));
1112            return dtohl(attr->rawValue.index);
1113        }
1114    }
1115    return -1;
1116}
1117
1118const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1119{
1120    int32_t id = getAttributeValueStringID(idx);
1121    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1122    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1123}
1124
1125int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1126{
1127    if (mEventCode == START_TAG) {
1128        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1129        if (idx < dtohs(tag->attributeCount)) {
1130            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1131                (((const uint8_t*)tag)
1132                 + dtohs(tag->attributeStart)
1133                 + (dtohs(tag->attributeSize)*idx));
1134            uint8_t type = attr->typedValue.dataType;
1135            if (type != Res_value::TYPE_DYNAMIC_REFERENCE) {
1136                return type;
1137            }
1138
1139            // This is a dynamic reference. We adjust those references
1140            // to regular references at this level, so lie to the caller.
1141            return Res_value::TYPE_REFERENCE;
1142        }
1143    }
1144    return Res_value::TYPE_NULL;
1145}
1146
1147int32_t ResXMLParser::getAttributeData(size_t idx) const
1148{
1149    if (mEventCode == START_TAG) {
1150        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1151        if (idx < dtohs(tag->attributeCount)) {
1152            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1153                (((const uint8_t*)tag)
1154                 + dtohs(tag->attributeStart)
1155                 + (dtohs(tag->attributeSize)*idx));
1156            if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE ||
1157                    mTree.mDynamicRefTable == NULL) {
1158                return dtohl(attr->typedValue.data);
1159            }
1160
1161            uint32_t data = dtohl(attr->typedValue.data);
1162            if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) {
1163                return data;
1164            }
1165        }
1166    }
1167    return 0;
1168}
1169
1170ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1171{
1172    if (mEventCode == START_TAG) {
1173        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1174        if (idx < dtohs(tag->attributeCount)) {
1175            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1176                (((const uint8_t*)tag)
1177                 + dtohs(tag->attributeStart)
1178                 + (dtohs(tag->attributeSize)*idx));
1179            outValue->copyFrom_dtoh(attr->typedValue);
1180            if (mTree.mDynamicRefTable != NULL &&
1181                    mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) {
1182                return BAD_TYPE;
1183            }
1184            return sizeof(Res_value);
1185        }
1186    }
1187    return BAD_TYPE;
1188}
1189
1190ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1191{
1192    String16 nsStr(ns != NULL ? ns : "");
1193    String16 attrStr(attr);
1194    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1195                            attrStr.string(), attrStr.size());
1196}
1197
1198ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1199                                       const char16_t* attr, size_t attrLen) const
1200{
1201    if (mEventCode == START_TAG) {
1202        if (attr == NULL) {
1203            return NAME_NOT_FOUND;
1204        }
1205        const size_t N = getAttributeCount();
1206        if (mTree.mStrings.isUTF8()) {
1207            String8 ns8, attr8;
1208            if (ns != NULL) {
1209                ns8 = String8(ns, nsLen);
1210            }
1211            attr8 = String8(attr, attrLen);
1212            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1213                    attr8.string(), attrLen));
1214            for (size_t i=0; i<N; i++) {
1215                size_t curNsLen = 0, curAttrLen = 0;
1216                const char* curNs = getAttributeNamespace8(i, &curNsLen);
1217                const char* curAttr = getAttributeName8(i, &curAttrLen);
1218                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1219                        curAttr, curAttrLen));
1220                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1221                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1222                    if (ns == NULL) {
1223                        if (curNs == NULL) {
1224                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1225                            return i;
1226                        }
1227                    } else if (curNs != NULL) {
1228                        //printf(" --> ns=%s, curNs=%s\n",
1229                        //       String8(ns).string(), String8(curNs).string());
1230                        if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1231                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1232                            return i;
1233                        }
1234                    }
1235                }
1236            }
1237        } else {
1238            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1239                    String8(ns, nsLen).string(), nsLen,
1240                    String8(attr, attrLen).string(), attrLen));
1241            for (size_t i=0; i<N; i++) {
1242                size_t curNsLen = 0, curAttrLen = 0;
1243                const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1244                const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1245                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)",
1246                        String8(curNs, curNsLen).string(), curNsLen,
1247                        String8(curAttr, curAttrLen).string(), curAttrLen));
1248                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1249                        && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1250                    if (ns == NULL) {
1251                        if (curNs == NULL) {
1252                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1253                            return i;
1254                        }
1255                    } else if (curNs != NULL) {
1256                        //printf(" --> ns=%s, curNs=%s\n",
1257                        //       String8(ns).string(), String8(curNs).string());
1258                        if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1259                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1260                            return i;
1261                        }
1262                    }
1263                }
1264            }
1265        }
1266    }
1267
1268    return NAME_NOT_FOUND;
1269}
1270
1271ssize_t ResXMLParser::indexOfID() const
1272{
1273    if (mEventCode == START_TAG) {
1274        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1275        if (idx > 0) return (idx-1);
1276    }
1277    return NAME_NOT_FOUND;
1278}
1279
1280ssize_t ResXMLParser::indexOfClass() const
1281{
1282    if (mEventCode == START_TAG) {
1283        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1284        if (idx > 0) return (idx-1);
1285    }
1286    return NAME_NOT_FOUND;
1287}
1288
1289ssize_t ResXMLParser::indexOfStyle() const
1290{
1291    if (mEventCode == START_TAG) {
1292        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1293        if (idx > 0) return (idx-1);
1294    }
1295    return NAME_NOT_FOUND;
1296}
1297
1298ResXMLParser::event_code_t ResXMLParser::nextNode()
1299{
1300    if (mEventCode < 0) {
1301        return mEventCode;
1302    }
1303
1304    do {
1305        const ResXMLTree_node* next = (const ResXMLTree_node*)
1306            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1307        //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1308
1309        if (((const uint8_t*)next) >= mTree.mDataEnd) {
1310            mCurNode = NULL;
1311            return (mEventCode=END_DOCUMENT);
1312        }
1313
1314        if (mTree.validateNode(next) != NO_ERROR) {
1315            mCurNode = NULL;
1316            return (mEventCode=BAD_DOCUMENT);
1317        }
1318
1319        mCurNode = next;
1320        const uint16_t headerSize = dtohs(next->header.headerSize);
1321        const uint32_t totalSize = dtohl(next->header.size);
1322        mCurExt = ((const uint8_t*)next) + headerSize;
1323        size_t minExtSize = 0;
1324        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1325        switch ((mEventCode=eventCode)) {
1326            case RES_XML_START_NAMESPACE_TYPE:
1327            case RES_XML_END_NAMESPACE_TYPE:
1328                minExtSize = sizeof(ResXMLTree_namespaceExt);
1329                break;
1330            case RES_XML_START_ELEMENT_TYPE:
1331                minExtSize = sizeof(ResXMLTree_attrExt);
1332                break;
1333            case RES_XML_END_ELEMENT_TYPE:
1334                minExtSize = sizeof(ResXMLTree_endElementExt);
1335                break;
1336            case RES_XML_CDATA_TYPE:
1337                minExtSize = sizeof(ResXMLTree_cdataExt);
1338                break;
1339            default:
1340                ALOGW("Unknown XML block: header type %d in node at %d\n",
1341                     (int)dtohs(next->header.type),
1342                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1343                continue;
1344        }
1345
1346        if ((totalSize-headerSize) < minExtSize) {
1347            ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1348                 (int)dtohs(next->header.type),
1349                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1350                 (int)(totalSize-headerSize), (int)minExtSize);
1351            return (mEventCode=BAD_DOCUMENT);
1352        }
1353
1354        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1355        //       mCurNode, mCurExt, headerSize, minExtSize);
1356
1357        return eventCode;
1358    } while (true);
1359}
1360
1361void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1362{
1363    pos->eventCode = mEventCode;
1364    pos->curNode = mCurNode;
1365    pos->curExt = mCurExt;
1366}
1367
1368void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1369{
1370    mEventCode = pos.eventCode;
1371    mCurNode = pos.curNode;
1372    mCurExt = pos.curExt;
1373}
1374
1375// --------------------------------------------------------------------
1376
1377static volatile int32_t gCount = 0;
1378
1379ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable)
1380    : ResXMLParser(*this)
1381    , mDynamicRefTable(dynamicRefTable)
1382    , mError(NO_INIT), mOwnedData(NULL)
1383{
1384    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1385    restart();
1386}
1387
1388ResXMLTree::ResXMLTree()
1389    : ResXMLParser(*this)
1390    , mDynamicRefTable(NULL)
1391    , mError(NO_INIT), mOwnedData(NULL)
1392{
1393    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1394    restart();
1395}
1396
1397ResXMLTree::~ResXMLTree()
1398{
1399    //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1400    uninit();
1401}
1402
1403status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1404{
1405    uninit();
1406    mEventCode = START_DOCUMENT;
1407
1408    if (!data || !size) {
1409        return (mError=BAD_TYPE);
1410    }
1411
1412    if (copyData) {
1413        mOwnedData = malloc(size);
1414        if (mOwnedData == NULL) {
1415            return (mError=NO_MEMORY);
1416        }
1417        memcpy(mOwnedData, data, size);
1418        data = mOwnedData;
1419    }
1420
1421    mHeader = (const ResXMLTree_header*)data;
1422    mSize = dtohl(mHeader->header.size);
1423    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1424        ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1425             (int)dtohs(mHeader->header.headerSize),
1426             (int)dtohl(mHeader->header.size), (int)size);
1427        mError = BAD_TYPE;
1428        restart();
1429        return mError;
1430    }
1431    mDataEnd = ((const uint8_t*)mHeader) + mSize;
1432
1433    mStrings.uninit();
1434    mRootNode = NULL;
1435    mResIds = NULL;
1436    mNumResIds = 0;
1437
1438    // First look for a couple interesting chunks: the string block
1439    // and first XML node.
1440    const ResChunk_header* chunk =
1441        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1442    const ResChunk_header* lastChunk = chunk;
1443    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1444           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1445        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1446        if (err != NO_ERROR) {
1447            mError = err;
1448            goto done;
1449        }
1450        const uint16_t type = dtohs(chunk->type);
1451        const size_t size = dtohl(chunk->size);
1452        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1453                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1454        if (type == RES_STRING_POOL_TYPE) {
1455            mStrings.setTo(chunk, size);
1456        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1457            mResIds = (const uint32_t*)
1458                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1459            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1460        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1461                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1462            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1463                mError = BAD_TYPE;
1464                goto done;
1465            }
1466            mCurNode = (const ResXMLTree_node*)lastChunk;
1467            if (nextNode() == BAD_DOCUMENT) {
1468                mError = BAD_TYPE;
1469                goto done;
1470            }
1471            mRootNode = mCurNode;
1472            mRootExt = mCurExt;
1473            mRootCode = mEventCode;
1474            break;
1475        } else {
1476            XML_NOISY(printf("Skipping unknown chunk!\n"));
1477        }
1478        lastChunk = chunk;
1479        chunk = (const ResChunk_header*)
1480            (((const uint8_t*)chunk) + size);
1481    }
1482
1483    if (mRootNode == NULL) {
1484        ALOGW("Bad XML block: no root element node found\n");
1485        mError = BAD_TYPE;
1486        goto done;
1487    }
1488
1489    mError = mStrings.getError();
1490
1491done:
1492    restart();
1493    return mError;
1494}
1495
1496status_t ResXMLTree::getError() const
1497{
1498    return mError;
1499}
1500
1501void ResXMLTree::uninit()
1502{
1503    mError = NO_INIT;
1504    mStrings.uninit();
1505    if (mOwnedData) {
1506        free(mOwnedData);
1507        mOwnedData = NULL;
1508    }
1509    restart();
1510}
1511
1512status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1513{
1514    const uint16_t eventCode = dtohs(node->header.type);
1515
1516    status_t err = validate_chunk(
1517        &node->header, sizeof(ResXMLTree_node),
1518        mDataEnd, "ResXMLTree_node");
1519
1520    if (err >= NO_ERROR) {
1521        // Only perform additional validation on START nodes
1522        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1523            return NO_ERROR;
1524        }
1525
1526        const uint16_t headerSize = dtohs(node->header.headerSize);
1527        const uint32_t size = dtohl(node->header.size);
1528        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1529            (((const uint8_t*)node) + headerSize);
1530        // check for sensical values pulled out of the stream so far...
1531        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1532                && ((void*)attrExt > (void*)node)) {
1533            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1534                * dtohs(attrExt->attributeCount);
1535            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1536                return NO_ERROR;
1537            }
1538            ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1539                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1540                    (unsigned int)(size-headerSize));
1541        }
1542        else {
1543            ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1544                (unsigned int)headerSize, (unsigned int)size);
1545        }
1546        return BAD_TYPE;
1547    }
1548
1549    return err;
1550
1551#if 0
1552    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1553
1554    const uint16_t headerSize = dtohs(node->header.headerSize);
1555    const uint32_t size = dtohl(node->header.size);
1556
1557    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1558        if (size >= headerSize) {
1559            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1560                if (!isStart) {
1561                    return NO_ERROR;
1562                }
1563                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1564                        <= (size-headerSize)) {
1565                    return NO_ERROR;
1566                }
1567                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1568                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1569                        (int)(size-headerSize));
1570                return BAD_TYPE;
1571            }
1572            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1573                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1574            return BAD_TYPE;
1575        }
1576        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1577                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1578                (int)headerSize, (int)size);
1579        return BAD_TYPE;
1580    }
1581    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1582            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1583            (int)headerSize);
1584    return BAD_TYPE;
1585#endif
1586}
1587
1588// --------------------------------------------------------------------
1589// --------------------------------------------------------------------
1590// --------------------------------------------------------------------
1591
1592void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1593    const size_t size = dtohl(o.size);
1594    if (size >= sizeof(ResTable_config)) {
1595        *this = o;
1596    } else {
1597        memcpy(this, &o, size);
1598        memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1599    }
1600}
1601
1602/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base,
1603        char out[4]) {
1604  if (in[0] & 0x80) {
1605      // The high bit is "1", which means this is a packed three letter
1606      // language code.
1607
1608      // The smallest 5 bits of the second char are the first alphabet.
1609      const uint8_t first = in[1] & 0x1f;
1610      // The last three bits of the second char and the first two bits
1611      // of the first char are the second alphabet.
1612      const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3);
1613      // Bits 3 to 7 (inclusive) of the first char are the third alphabet.
1614      const uint8_t third = (in[0] & 0x7c) >> 2;
1615
1616      out[0] = first + base;
1617      out[1] = second + base;
1618      out[2] = third + base;
1619      out[3] = 0;
1620
1621      return 3;
1622  }
1623
1624  if (in[0]) {
1625      memcpy(out, in, 2);
1626      memset(out + 2, 0, 2);
1627      return 2;
1628  }
1629
1630  memset(out, 0, 4);
1631  return 0;
1632}
1633
1634/* static */ void packLanguageOrRegion(const char* in, const char base,
1635        char out[2]) {
1636  if (in[2] == 0 || in[2] == '-') {
1637      out[0] = in[0];
1638      out[1] = in[1];
1639  } else {
1640      uint8_t first = (in[0] - base) & 0x00ef;
1641      uint8_t second = (in[1] - base) & 0x00ef;
1642      uint8_t third = (in[2] - base) & 0x00ef;
1643
1644      out[0] = (0x80 | (third << 2) | (second >> 3));
1645      out[1] = ((second << 5) | first);
1646  }
1647}
1648
1649
1650void ResTable_config::packLanguage(const char* language) {
1651    packLanguageOrRegion(language, 'a', this->language);
1652}
1653
1654void ResTable_config::packRegion(const char* region) {
1655    packLanguageOrRegion(region, '0', this->country);
1656}
1657
1658size_t ResTable_config::unpackLanguage(char language[4]) const {
1659    return unpackLanguageOrRegion(this->language, 'a', language);
1660}
1661
1662size_t ResTable_config::unpackRegion(char region[4]) const {
1663    return unpackLanguageOrRegion(this->country, '0', region);
1664}
1665
1666
1667void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1668    copyFromDeviceNoSwap(o);
1669    size = sizeof(ResTable_config);
1670    mcc = dtohs(mcc);
1671    mnc = dtohs(mnc);
1672    density = dtohs(density);
1673    screenWidth = dtohs(screenWidth);
1674    screenHeight = dtohs(screenHeight);
1675    sdkVersion = dtohs(sdkVersion);
1676    minorVersion = dtohs(minorVersion);
1677    smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1678    screenWidthDp = dtohs(screenWidthDp);
1679    screenHeightDp = dtohs(screenHeightDp);
1680}
1681
1682void ResTable_config::swapHtoD() {
1683    size = htodl(size);
1684    mcc = htods(mcc);
1685    mnc = htods(mnc);
1686    density = htods(density);
1687    screenWidth = htods(screenWidth);
1688    screenHeight = htods(screenHeight);
1689    sdkVersion = htods(sdkVersion);
1690    minorVersion = htods(minorVersion);
1691    smallestScreenWidthDp = htods(smallestScreenWidthDp);
1692    screenWidthDp = htods(screenWidthDp);
1693    screenHeightDp = htods(screenHeightDp);
1694}
1695
1696/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) {
1697    if (l.locale != r.locale) {
1698        // NOTE: This is the old behaviour with respect to comparison orders.
1699        // The diff value here doesn't make much sense (given our bit packing scheme)
1700        // but it's stable, and that's all we need.
1701        return l.locale - r.locale;
1702    }
1703
1704    // The language & region are equal, so compare the scripts and variants.
1705    int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript));
1706    if (script) {
1707        return script;
1708    }
1709
1710    // The language, region and script are equal, so compare variants.
1711    //
1712    // This should happen very infrequently (if at all.)
1713    return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant));
1714}
1715
1716int ResTable_config::compare(const ResTable_config& o) const {
1717    int32_t diff = (int32_t)(imsi - o.imsi);
1718    if (diff != 0) return diff;
1719    diff = compareLocales(*this, o);
1720    if (diff != 0) return diff;
1721    diff = (int32_t)(screenType - o.screenType);
1722    if (diff != 0) return diff;
1723    diff = (int32_t)(input - o.input);
1724    if (diff != 0) return diff;
1725    diff = (int32_t)(screenSize - o.screenSize);
1726    if (diff != 0) return diff;
1727    diff = (int32_t)(version - o.version);
1728    if (diff != 0) return diff;
1729    diff = (int32_t)(screenLayout - o.screenLayout);
1730    if (diff != 0) return diff;
1731    diff = (int32_t)(uiMode - o.uiMode);
1732    if (diff != 0) return diff;
1733    diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1734    if (diff != 0) return diff;
1735    diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1736    return (int)diff;
1737}
1738
1739int ResTable_config::compareLogical(const ResTable_config& o) const {
1740    if (mcc != o.mcc) {
1741        return mcc < o.mcc ? -1 : 1;
1742    }
1743    if (mnc != o.mnc) {
1744        return mnc < o.mnc ? -1 : 1;
1745    }
1746
1747    int diff = compareLocales(*this, o);
1748    if (diff < 0) {
1749        return -1;
1750    }
1751    if (diff > 0) {
1752        return 1;
1753    }
1754
1755    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1756        return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1757    }
1758    if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1759        return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1760    }
1761    if (screenWidthDp != o.screenWidthDp) {
1762        return screenWidthDp < o.screenWidthDp ? -1 : 1;
1763    }
1764    if (screenHeightDp != o.screenHeightDp) {
1765        return screenHeightDp < o.screenHeightDp ? -1 : 1;
1766    }
1767    if (screenWidth != o.screenWidth) {
1768        return screenWidth < o.screenWidth ? -1 : 1;
1769    }
1770    if (screenHeight != o.screenHeight) {
1771        return screenHeight < o.screenHeight ? -1 : 1;
1772    }
1773    if (density != o.density) {
1774        return density < o.density ? -1 : 1;
1775    }
1776    if (orientation != o.orientation) {
1777        return orientation < o.orientation ? -1 : 1;
1778    }
1779    if (touchscreen != o.touchscreen) {
1780        return touchscreen < o.touchscreen ? -1 : 1;
1781    }
1782    if (input != o.input) {
1783        return input < o.input ? -1 : 1;
1784    }
1785    if (screenLayout != o.screenLayout) {
1786        return screenLayout < o.screenLayout ? -1 : 1;
1787    }
1788    if (uiMode != o.uiMode) {
1789        return uiMode < o.uiMode ? -1 : 1;
1790    }
1791    if (version != o.version) {
1792        return version < o.version ? -1 : 1;
1793    }
1794    return 0;
1795}
1796
1797int ResTable_config::diff(const ResTable_config& o) const {
1798    int diffs = 0;
1799    if (mcc != o.mcc) diffs |= CONFIG_MCC;
1800    if (mnc != o.mnc) diffs |= CONFIG_MNC;
1801    if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1802    if (density != o.density) diffs |= CONFIG_DENSITY;
1803    if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1804    if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1805            diffs |= CONFIG_KEYBOARD_HIDDEN;
1806    if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1807    if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1808    if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1809    if (version != o.version) diffs |= CONFIG_VERSION;
1810    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1811    if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1812    if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1813    if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1814    if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1815
1816    const int diff = compareLocales(*this, o);
1817    if (diff) diffs |= CONFIG_LOCALE;
1818
1819    return diffs;
1820}
1821
1822int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const {
1823    if (locale || o.locale) {
1824        if (language[0] != o.language[0]) {
1825            if (!language[0]) return -1;
1826            if (!o.language[0]) return 1;
1827        }
1828
1829        if (country[0] != o.country[0]) {
1830            if (!country[0]) return -1;
1831            if (!o.country[0]) return 1;
1832        }
1833    }
1834
1835    // There isn't a well specified "importance" order between variants and
1836    // scripts. We can't easily tell whether, say "en-Latn-US" is more or less
1837    // specific than "en-US-POSIX".
1838    //
1839    // We therefore arbitrarily decide to give priority to variants over
1840    // scripts since it seems more useful to do so. We will consider
1841    // "en-US-POSIX" to be more specific than "en-Latn-US".
1842
1843    const int score = ((localeScript[0] != 0) ? 1 : 0) +
1844        ((localeVariant[0] != 0) ? 2 : 0);
1845
1846    const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) +
1847        ((o.localeVariant[0] != 0) ? 2 : 0);
1848
1849    return score - oScore;
1850
1851}
1852
1853bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1854    // The order of the following tests defines the importance of one
1855    // configuration parameter over another.  Those tests first are more
1856    // important, trumping any values in those following them.
1857    if (imsi || o.imsi) {
1858        if (mcc != o.mcc) {
1859            if (!mcc) return false;
1860            if (!o.mcc) return true;
1861        }
1862
1863        if (mnc != o.mnc) {
1864            if (!mnc) return false;
1865            if (!o.mnc) return true;
1866        }
1867    }
1868
1869    if (locale || o.locale) {
1870        const int diff = isLocaleMoreSpecificThan(o);
1871        if (diff < 0) {
1872            return false;
1873        }
1874
1875        if (diff > 0) {
1876            return true;
1877        }
1878    }
1879
1880    if (screenLayout || o.screenLayout) {
1881        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1882            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1883            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1884        }
1885    }
1886
1887    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1888        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1889            if (!smallestScreenWidthDp) return false;
1890            if (!o.smallestScreenWidthDp) return true;
1891        }
1892    }
1893
1894    if (screenSizeDp || o.screenSizeDp) {
1895        if (screenWidthDp != o.screenWidthDp) {
1896            if (!screenWidthDp) return false;
1897            if (!o.screenWidthDp) return true;
1898        }
1899
1900        if (screenHeightDp != o.screenHeightDp) {
1901            if (!screenHeightDp) return false;
1902            if (!o.screenHeightDp) return true;
1903        }
1904    }
1905
1906    if (screenLayout || o.screenLayout) {
1907        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1908            if (!(screenLayout & MASK_SCREENSIZE)) return false;
1909            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1910        }
1911        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1912            if (!(screenLayout & MASK_SCREENLONG)) return false;
1913            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1914        }
1915    }
1916
1917    if (orientation != o.orientation) {
1918        if (!orientation) return false;
1919        if (!o.orientation) return true;
1920    }
1921
1922    if (uiMode || o.uiMode) {
1923        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
1924            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
1925            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
1926        }
1927        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
1928            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
1929            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
1930        }
1931    }
1932
1933    // density is never 'more specific'
1934    // as the default just equals 160
1935
1936    if (touchscreen != o.touchscreen) {
1937        if (!touchscreen) return false;
1938        if (!o.touchscreen) return true;
1939    }
1940
1941    if (input || o.input) {
1942        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
1943            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
1944            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
1945        }
1946
1947        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
1948            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
1949            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
1950        }
1951
1952        if (keyboard != o.keyboard) {
1953            if (!keyboard) return false;
1954            if (!o.keyboard) return true;
1955        }
1956
1957        if (navigation != o.navigation) {
1958            if (!navigation) return false;
1959            if (!o.navigation) return true;
1960        }
1961    }
1962
1963    if (screenSize || o.screenSize) {
1964        if (screenWidth != o.screenWidth) {
1965            if (!screenWidth) return false;
1966            if (!o.screenWidth) return true;
1967        }
1968
1969        if (screenHeight != o.screenHeight) {
1970            if (!screenHeight) return false;
1971            if (!o.screenHeight) return true;
1972        }
1973    }
1974
1975    if (version || o.version) {
1976        if (sdkVersion != o.sdkVersion) {
1977            if (!sdkVersion) return false;
1978            if (!o.sdkVersion) return true;
1979        }
1980
1981        if (minorVersion != o.minorVersion) {
1982            if (!minorVersion) return false;
1983            if (!o.minorVersion) return true;
1984        }
1985    }
1986    return false;
1987}
1988
1989bool ResTable_config::isBetterThan(const ResTable_config& o,
1990        const ResTable_config* requested) const {
1991    if (requested) {
1992        if (imsi || o.imsi) {
1993            if ((mcc != o.mcc) && requested->mcc) {
1994                return (mcc);
1995            }
1996
1997            if ((mnc != o.mnc) && requested->mnc) {
1998                return (mnc);
1999            }
2000        }
2001
2002        if (locale || o.locale) {
2003            if ((language[0] != o.language[0]) && requested->language[0]) {
2004                return (language[0]);
2005            }
2006
2007            if ((country[0] != o.country[0]) && requested->country[0]) {
2008                return (country[0]);
2009            }
2010        }
2011
2012        if (localeScript[0] || o.localeScript[0]) {
2013            if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) {
2014                return localeScript[0];
2015            }
2016        }
2017
2018        if (localeVariant[0] || o.localeVariant[0]) {
2019            if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) {
2020                return localeVariant[0];
2021            }
2022        }
2023
2024        if (screenLayout || o.screenLayout) {
2025            if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
2026                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
2027                int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
2028                int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
2029                return (myLayoutDir > oLayoutDir);
2030            }
2031        }
2032
2033        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
2034            // The configuration closest to the actual size is best.
2035            // We assume that larger configs have already been filtered
2036            // out at this point.  That means we just want the largest one.
2037            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
2038                return smallestScreenWidthDp > o.smallestScreenWidthDp;
2039            }
2040        }
2041
2042        if (screenSizeDp || o.screenSizeDp) {
2043            // "Better" is based on the sum of the difference between both
2044            // width and height from the requested dimensions.  We are
2045            // assuming the invalid configs (with smaller dimens) have
2046            // already been filtered.  Note that if a particular dimension
2047            // is unspecified, we will end up with a large value (the
2048            // difference between 0 and the requested dimension), which is
2049            // good since we will prefer a config that has specified a
2050            // dimension value.
2051            int myDelta = 0, otherDelta = 0;
2052            if (requested->screenWidthDp) {
2053                myDelta += requested->screenWidthDp - screenWidthDp;
2054                otherDelta += requested->screenWidthDp - o.screenWidthDp;
2055            }
2056            if (requested->screenHeightDp) {
2057                myDelta += requested->screenHeightDp - screenHeightDp;
2058                otherDelta += requested->screenHeightDp - o.screenHeightDp;
2059            }
2060            //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
2061            //    screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
2062            //    requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
2063            if (myDelta != otherDelta) {
2064                return myDelta < otherDelta;
2065            }
2066        }
2067
2068        if (screenLayout || o.screenLayout) {
2069            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
2070                    && (requested->screenLayout & MASK_SCREENSIZE)) {
2071                // A little backwards compatibility here: undefined is
2072                // considered equivalent to normal.  But only if the
2073                // requested size is at least normal; otherwise, small
2074                // is better than the default.
2075                int mySL = (screenLayout & MASK_SCREENSIZE);
2076                int oSL = (o.screenLayout & MASK_SCREENSIZE);
2077                int fixedMySL = mySL;
2078                int fixedOSL = oSL;
2079                if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
2080                    if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
2081                    if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
2082                }
2083                // For screen size, the best match is the one that is
2084                // closest to the requested screen size, but not over
2085                // (the not over part is dealt with in match() below).
2086                if (fixedMySL == fixedOSL) {
2087                    // If the two are the same, but 'this' is actually
2088                    // undefined, then the other is really a better match.
2089                    if (mySL == 0) return false;
2090                    return true;
2091                }
2092                if (fixedMySL != fixedOSL) {
2093                    return fixedMySL > fixedOSL;
2094                }
2095            }
2096            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
2097                    && (requested->screenLayout & MASK_SCREENLONG)) {
2098                return (screenLayout & MASK_SCREENLONG);
2099            }
2100        }
2101
2102        if ((orientation != o.orientation) && requested->orientation) {
2103            return (orientation);
2104        }
2105
2106        if (uiMode || o.uiMode) {
2107            if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
2108                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
2109                return (uiMode & MASK_UI_MODE_TYPE);
2110            }
2111            if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
2112                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
2113                return (uiMode & MASK_UI_MODE_NIGHT);
2114            }
2115        }
2116
2117        if (screenType || o.screenType) {
2118            if (density != o.density) {
2119                // density is tough.  Any density is potentially useful
2120                // because the system will scale it.  Scaling down
2121                // is generally better than scaling up.
2122                // Default density counts as 160dpi (the system default)
2123                // TODO - remove 160 constants
2124                int h = (density?density:160);
2125                int l = (o.density?o.density:160);
2126                bool bImBigger = true;
2127                if (l > h) {
2128                    int t = h;
2129                    h = l;
2130                    l = t;
2131                    bImBigger = false;
2132                }
2133
2134                int reqValue = (requested->density?requested->density:160);
2135                if (reqValue >= h) {
2136                    // requested value higher than both l and h, give h
2137                    return bImBigger;
2138                }
2139                if (l >= reqValue) {
2140                    // requested value lower than both l and h, give l
2141                    return !bImBigger;
2142                }
2143                // saying that scaling down is 2x better than up
2144                if (((2 * l) - reqValue) * h > reqValue * reqValue) {
2145                    return !bImBigger;
2146                } else {
2147                    return bImBigger;
2148                }
2149            }
2150
2151            if ((touchscreen != o.touchscreen) && requested->touchscreen) {
2152                return (touchscreen);
2153            }
2154        }
2155
2156        if (input || o.input) {
2157            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
2158            const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
2159            if (keysHidden != oKeysHidden) {
2160                const int reqKeysHidden =
2161                        requested->inputFlags & MASK_KEYSHIDDEN;
2162                if (reqKeysHidden) {
2163
2164                    if (!keysHidden) return false;
2165                    if (!oKeysHidden) return true;
2166                    // For compatibility, we count KEYSHIDDEN_NO as being
2167                    // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
2168                    // these by making an exact match more specific.
2169                    if (reqKeysHidden == keysHidden) return true;
2170                    if (reqKeysHidden == oKeysHidden) return false;
2171                }
2172            }
2173
2174            const int navHidden = inputFlags & MASK_NAVHIDDEN;
2175            const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
2176            if (navHidden != oNavHidden) {
2177                const int reqNavHidden =
2178                        requested->inputFlags & MASK_NAVHIDDEN;
2179                if (reqNavHidden) {
2180
2181                    if (!navHidden) return false;
2182                    if (!oNavHidden) return true;
2183                }
2184            }
2185
2186            if ((keyboard != o.keyboard) && requested->keyboard) {
2187                return (keyboard);
2188            }
2189
2190            if ((navigation != o.navigation) && requested->navigation) {
2191                return (navigation);
2192            }
2193        }
2194
2195        if (screenSize || o.screenSize) {
2196            // "Better" is based on the sum of the difference between both
2197            // width and height from the requested dimensions.  We are
2198            // assuming the invalid configs (with smaller sizes) have
2199            // already been filtered.  Note that if a particular dimension
2200            // is unspecified, we will end up with a large value (the
2201            // difference between 0 and the requested dimension), which is
2202            // good since we will prefer a config that has specified a
2203            // size value.
2204            int myDelta = 0, otherDelta = 0;
2205            if (requested->screenWidth) {
2206                myDelta += requested->screenWidth - screenWidth;
2207                otherDelta += requested->screenWidth - o.screenWidth;
2208            }
2209            if (requested->screenHeight) {
2210                myDelta += requested->screenHeight - screenHeight;
2211                otherDelta += requested->screenHeight - o.screenHeight;
2212            }
2213            if (myDelta != otherDelta) {
2214                return myDelta < otherDelta;
2215            }
2216        }
2217
2218        if (version || o.version) {
2219            if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2220                return (sdkVersion > o.sdkVersion);
2221            }
2222
2223            if ((minorVersion != o.minorVersion) &&
2224                    requested->minorVersion) {
2225                return (minorVersion);
2226            }
2227        }
2228
2229        return false;
2230    }
2231    return isMoreSpecificThan(o);
2232}
2233
2234bool ResTable_config::match(const ResTable_config& settings) const {
2235    if (imsi != 0) {
2236        if (mcc != 0 && mcc != settings.mcc) {
2237            return false;
2238        }
2239        if (mnc != 0 && mnc != settings.mnc) {
2240            return false;
2241        }
2242    }
2243    if (locale != 0) {
2244        // Don't consider the script & variants when deciding matches.
2245        //
2246        // If we two configs differ only in their script or language, they
2247        // can be weeded out in the isMoreSpecificThan test.
2248        if (language[0] != 0
2249            && (language[0] != settings.language[0]
2250                || language[1] != settings.language[1])) {
2251            return false;
2252        }
2253
2254        if (country[0] != 0
2255            && (country[0] != settings.country[0]
2256                || country[1] != settings.country[1])) {
2257            return false;
2258        }
2259    }
2260
2261    if (screenConfig != 0) {
2262        const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2263        const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2264        if (layoutDir != 0 && layoutDir != setLayoutDir) {
2265            return false;
2266        }
2267
2268        const int screenSize = screenLayout&MASK_SCREENSIZE;
2269        const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2270        // Any screen sizes for larger screens than the setting do not
2271        // match.
2272        if (screenSize != 0 && screenSize > setScreenSize) {
2273            return false;
2274        }
2275
2276        const int screenLong = screenLayout&MASK_SCREENLONG;
2277        const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2278        if (screenLong != 0 && screenLong != setScreenLong) {
2279            return false;
2280        }
2281
2282        const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2283        const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2284        if (uiModeType != 0 && uiModeType != setUiModeType) {
2285            return false;
2286        }
2287
2288        const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2289        const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2290        if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2291            return false;
2292        }
2293
2294        if (smallestScreenWidthDp != 0
2295                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2296            return false;
2297        }
2298    }
2299    if (screenSizeDp != 0) {
2300        if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2301            //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2302            return false;
2303        }
2304        if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2305            //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2306            return false;
2307        }
2308    }
2309    if (screenType != 0) {
2310        if (orientation != 0 && orientation != settings.orientation) {
2311            return false;
2312        }
2313        // density always matches - we can scale it.  See isBetterThan
2314        if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2315            return false;
2316        }
2317    }
2318    if (input != 0) {
2319        const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2320        const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2321        if (keysHidden != 0 && keysHidden != setKeysHidden) {
2322            // For compatibility, we count a request for KEYSHIDDEN_NO as also
2323            // matching the more recent KEYSHIDDEN_SOFT.  Basically
2324            // KEYSHIDDEN_NO means there is some kind of keyboard available.
2325            //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2326            if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2327                //ALOGI("No match!");
2328                return false;
2329            }
2330        }
2331        const int navHidden = inputFlags&MASK_NAVHIDDEN;
2332        const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2333        if (navHidden != 0 && navHidden != setNavHidden) {
2334            return false;
2335        }
2336        if (keyboard != 0 && keyboard != settings.keyboard) {
2337            return false;
2338        }
2339        if (navigation != 0 && navigation != settings.navigation) {
2340            return false;
2341        }
2342    }
2343    if (screenSize != 0) {
2344        if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2345            return false;
2346        }
2347        if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2348            return false;
2349        }
2350    }
2351    if (version != 0) {
2352        if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2353            return false;
2354        }
2355        if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2356            return false;
2357        }
2358    }
2359    return true;
2360}
2361
2362void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const {
2363    memset(str, 0, RESTABLE_MAX_LOCALE_LEN);
2364
2365    // This represents the "any" locale value, which has traditionally been
2366    // represented by the empty string.
2367    if (!language[0] && !country[0]) {
2368        return;
2369    }
2370
2371    size_t charsWritten = 0;
2372    if (language[0]) {
2373        charsWritten += unpackLanguage(str);
2374    }
2375
2376    if (localeScript[0]) {
2377        if (charsWritten) {
2378            str[charsWritten++] = '-';
2379        }
2380        memcpy(str + charsWritten, localeScript, sizeof(localeScript));
2381        charsWritten += sizeof(localeScript);
2382    }
2383
2384    if (country[0]) {
2385        if (charsWritten) {
2386            str[charsWritten++] = '-';
2387        }
2388        charsWritten += unpackRegion(str + charsWritten);
2389    }
2390
2391    if (localeVariant[0]) {
2392        if (charsWritten) {
2393            str[charsWritten++] = '-';
2394        }
2395        memcpy(str + charsWritten, localeVariant, sizeof(localeVariant));
2396    }
2397}
2398
2399/* static */ inline bool assignLocaleComponent(ResTable_config* config,
2400        const char* start, size_t size) {
2401
2402  switch (size) {
2403       case 0:
2404           return false;
2405       case 2:
2406       case 3:
2407           config->language[0] ? config->packRegion(start) : config->packLanguage(start);
2408           break;
2409       case 4:
2410           config->localeScript[0] = toupper(start[0]);
2411           for (size_t i = 1; i < 4; ++i) {
2412               config->localeScript[i] = tolower(start[i]);
2413           }
2414           break;
2415       case 5:
2416       case 6:
2417       case 7:
2418       case 8:
2419           for (size_t i = 0; i < size; ++i) {
2420               config->localeVariant[i] = tolower(start[i]);
2421           }
2422           break;
2423       default:
2424           return false;
2425  }
2426
2427  return true;
2428}
2429
2430void ResTable_config::setBcp47Locale(const char* in) {
2431    locale = 0;
2432    memset(localeScript, 0, sizeof(localeScript));
2433    memset(localeVariant, 0, sizeof(localeVariant));
2434
2435    const char* separator = in;
2436    const char* start = in;
2437    while ((separator = strchr(start, '-')) != NULL) {
2438        const size_t size = separator - start;
2439        if (!assignLocaleComponent(this, start, size)) {
2440            fprintf(stderr, "Invalid BCP-47 locale string: %s", in);
2441        }
2442
2443        start = (separator + 1);
2444    }
2445
2446    const size_t size = in + strlen(in) - start;
2447    assignLocaleComponent(this, start, size);
2448}
2449
2450String8 ResTable_config::toString() const {
2451    String8 res;
2452
2453    if (mcc != 0) {
2454        if (res.size() > 0) res.append("-");
2455        res.appendFormat("mcc%d", dtohs(mcc));
2456    }
2457    if (mnc != 0) {
2458        if (res.size() > 0) res.append("-");
2459        res.appendFormat("mnc%d", dtohs(mnc));
2460    }
2461
2462    char localeStr[RESTABLE_MAX_LOCALE_LEN];
2463    getBcp47Locale(localeStr);
2464    if (strlen(localeStr) > 0) {
2465        if (res.size() > 0) res.append("-");
2466        res.append(localeStr);
2467    }
2468
2469    if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2470        if (res.size() > 0) res.append("-");
2471        switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2472            case ResTable_config::LAYOUTDIR_LTR:
2473                res.append("ldltr");
2474                break;
2475            case ResTable_config::LAYOUTDIR_RTL:
2476                res.append("ldrtl");
2477                break;
2478            default:
2479                res.appendFormat("layoutDir=%d",
2480                        dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2481                break;
2482        }
2483    }
2484    if (smallestScreenWidthDp != 0) {
2485        if (res.size() > 0) res.append("-");
2486        res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2487    }
2488    if (screenWidthDp != 0) {
2489        if (res.size() > 0) res.append("-");
2490        res.appendFormat("w%ddp", dtohs(screenWidthDp));
2491    }
2492    if (screenHeightDp != 0) {
2493        if (res.size() > 0) res.append("-");
2494        res.appendFormat("h%ddp", dtohs(screenHeightDp));
2495    }
2496    if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2497        if (res.size() > 0) res.append("-");
2498        switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2499            case ResTable_config::SCREENSIZE_SMALL:
2500                res.append("small");
2501                break;
2502            case ResTable_config::SCREENSIZE_NORMAL:
2503                res.append("normal");
2504                break;
2505            case ResTable_config::SCREENSIZE_LARGE:
2506                res.append("large");
2507                break;
2508            case ResTable_config::SCREENSIZE_XLARGE:
2509                res.append("xlarge");
2510                break;
2511            default:
2512                res.appendFormat("screenLayoutSize=%d",
2513                        dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2514                break;
2515        }
2516    }
2517    if ((screenLayout&MASK_SCREENLONG) != 0) {
2518        if (res.size() > 0) res.append("-");
2519        switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2520            case ResTable_config::SCREENLONG_NO:
2521                res.append("notlong");
2522                break;
2523            case ResTable_config::SCREENLONG_YES:
2524                res.append("long");
2525                break;
2526            default:
2527                res.appendFormat("screenLayoutLong=%d",
2528                        dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2529                break;
2530        }
2531    }
2532    if (orientation != ORIENTATION_ANY) {
2533        if (res.size() > 0) res.append("-");
2534        switch (orientation) {
2535            case ResTable_config::ORIENTATION_PORT:
2536                res.append("port");
2537                break;
2538            case ResTable_config::ORIENTATION_LAND:
2539                res.append("land");
2540                break;
2541            case ResTable_config::ORIENTATION_SQUARE:
2542                res.append("square");
2543                break;
2544            default:
2545                res.appendFormat("orientation=%d", dtohs(orientation));
2546                break;
2547        }
2548    }
2549    if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2550        if (res.size() > 0) res.append("-");
2551        switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2552            case ResTable_config::UI_MODE_TYPE_DESK:
2553                res.append("desk");
2554                break;
2555            case ResTable_config::UI_MODE_TYPE_CAR:
2556                res.append("car");
2557                break;
2558            case ResTable_config::UI_MODE_TYPE_TELEVISION:
2559                res.append("television");
2560                break;
2561            case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2562                res.append("appliance");
2563                break;
2564            case ResTable_config::UI_MODE_TYPE_WATCH:
2565                res.append("watch");
2566                break;
2567            default:
2568                res.appendFormat("uiModeType=%d",
2569                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2570                break;
2571        }
2572    }
2573    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2574        if (res.size() > 0) res.append("-");
2575        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2576            case ResTable_config::UI_MODE_NIGHT_NO:
2577                res.append("notnight");
2578                break;
2579            case ResTable_config::UI_MODE_NIGHT_YES:
2580                res.append("night");
2581                break;
2582            default:
2583                res.appendFormat("uiModeNight=%d",
2584                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2585                break;
2586        }
2587    }
2588    if (density != DENSITY_DEFAULT) {
2589        if (res.size() > 0) res.append("-");
2590        switch (density) {
2591            case ResTable_config::DENSITY_LOW:
2592                res.append("ldpi");
2593                break;
2594            case ResTable_config::DENSITY_MEDIUM:
2595                res.append("mdpi");
2596                break;
2597            case ResTable_config::DENSITY_TV:
2598                res.append("tvdpi");
2599                break;
2600            case ResTable_config::DENSITY_HIGH:
2601                res.append("hdpi");
2602                break;
2603            case ResTable_config::DENSITY_XHIGH:
2604                res.append("xhdpi");
2605                break;
2606            case ResTable_config::DENSITY_XXHIGH:
2607                res.append("xxhdpi");
2608                break;
2609            case ResTable_config::DENSITY_NONE:
2610                res.append("nodpi");
2611                break;
2612            default:
2613                res.appendFormat("%ddpi", dtohs(density));
2614                break;
2615        }
2616    }
2617    if (touchscreen != TOUCHSCREEN_ANY) {
2618        if (res.size() > 0) res.append("-");
2619        switch (touchscreen) {
2620            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2621                res.append("notouch");
2622                break;
2623            case ResTable_config::TOUCHSCREEN_FINGER:
2624                res.append("finger");
2625                break;
2626            case ResTable_config::TOUCHSCREEN_STYLUS:
2627                res.append("stylus");
2628                break;
2629            default:
2630                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2631                break;
2632        }
2633    }
2634    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2635        if (res.size() > 0) res.append("-");
2636        switch (inputFlags&MASK_KEYSHIDDEN) {
2637            case ResTable_config::KEYSHIDDEN_NO:
2638                res.append("keysexposed");
2639                break;
2640            case ResTable_config::KEYSHIDDEN_YES:
2641                res.append("keyshidden");
2642                break;
2643            case ResTable_config::KEYSHIDDEN_SOFT:
2644                res.append("keyssoft");
2645                break;
2646        }
2647    }
2648    if (keyboard != KEYBOARD_ANY) {
2649        if (res.size() > 0) res.append("-");
2650        switch (keyboard) {
2651            case ResTable_config::KEYBOARD_NOKEYS:
2652                res.append("nokeys");
2653                break;
2654            case ResTable_config::KEYBOARD_QWERTY:
2655                res.append("qwerty");
2656                break;
2657            case ResTable_config::KEYBOARD_12KEY:
2658                res.append("12key");
2659                break;
2660            default:
2661                res.appendFormat("keyboard=%d", dtohs(keyboard));
2662                break;
2663        }
2664    }
2665    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2666        if (res.size() > 0) res.append("-");
2667        switch (inputFlags&MASK_NAVHIDDEN) {
2668            case ResTable_config::NAVHIDDEN_NO:
2669                res.append("navexposed");
2670                break;
2671            case ResTable_config::NAVHIDDEN_YES:
2672                res.append("navhidden");
2673                break;
2674            default:
2675                res.appendFormat("inputFlagsNavHidden=%d",
2676                        dtohs(inputFlags&MASK_NAVHIDDEN));
2677                break;
2678        }
2679    }
2680    if (navigation != NAVIGATION_ANY) {
2681        if (res.size() > 0) res.append("-");
2682        switch (navigation) {
2683            case ResTable_config::NAVIGATION_NONAV:
2684                res.append("nonav");
2685                break;
2686            case ResTable_config::NAVIGATION_DPAD:
2687                res.append("dpad");
2688                break;
2689            case ResTable_config::NAVIGATION_TRACKBALL:
2690                res.append("trackball");
2691                break;
2692            case ResTable_config::NAVIGATION_WHEEL:
2693                res.append("wheel");
2694                break;
2695            default:
2696                res.appendFormat("navigation=%d", dtohs(navigation));
2697                break;
2698        }
2699    }
2700    if (screenSize != 0) {
2701        if (res.size() > 0) res.append("-");
2702        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2703    }
2704    if (version != 0) {
2705        if (res.size() > 0) res.append("-");
2706        res.appendFormat("v%d", dtohs(sdkVersion));
2707        if (minorVersion != 0) {
2708            res.appendFormat(".%d", dtohs(minorVersion));
2709        }
2710    }
2711
2712    return res;
2713}
2714
2715// --------------------------------------------------------------------
2716// --------------------------------------------------------------------
2717// --------------------------------------------------------------------
2718
2719struct ResTable::Header
2720{
2721    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2722        resourceIDMap(NULL), resourceIDMapSize(0) { }
2723
2724    ~Header()
2725    {
2726        free(resourceIDMap);
2727    }
2728
2729    ResTable* const                 owner;
2730    void*                           ownedData;
2731    const ResTable_header*          header;
2732    size_t                          size;
2733    const uint8_t*                  dataEnd;
2734    size_t                          index;
2735    int32_t                         cookie;
2736
2737    ResStringPool                   values;
2738    uint32_t*                       resourceIDMap;
2739    size_t                          resourceIDMapSize;
2740};
2741
2742struct ResTable::Type
2743{
2744    Type(const Header* _header, const Package* _package, size_t count)
2745        : header(_header), package(_package), entryCount(count),
2746          typeSpec(NULL), typeSpecFlags(NULL) { }
2747    const Header* const             header;
2748    const Package* const            package;
2749    const size_t                    entryCount;
2750    const ResTable_typeSpec*        typeSpec;
2751    const uint32_t*                 typeSpecFlags;
2752    Vector<const ResTable_type*>    configs;
2753};
2754
2755struct ResTable::Package
2756{
2757    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2758        : owner(_owner), header(_header), package(_package) { }
2759    ~Package()
2760    {
2761        size_t i = types.size();
2762        while (i > 0) {
2763            i--;
2764            delete types[i];
2765        }
2766    }
2767
2768    ResTable* const                 owner;
2769    const Header* const             header;
2770    const ResTable_package* const   package;
2771    Vector<Type*>                   types;
2772
2773    ResStringPool                   typeStrings;
2774    ResStringPool                   keyStrings;
2775
2776    const Type* getType(size_t idx) const {
2777        return idx < types.size() ? types[idx] : NULL;
2778    }
2779};
2780
2781// A group of objects describing a particular resource package.
2782// The first in 'package' is always the root object (from the resource
2783// table that defined the package); the ones after are skins on top of it.
2784struct ResTable::PackageGroup
2785{
2786    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2787        : owner(_owner)
2788        , name(_name)
2789        , id(_id)
2790        , typeCount(0)
2791        , bags(NULL)
2792        , dynamicRefTable(static_cast<uint8_t>(_id))
2793    { }
2794
2795    ~PackageGroup() {
2796        clearBagCache();
2797        const size_t N = packages.size();
2798        for (size_t i=0; i<N; i++) {
2799            Package* pkg = packages[i];
2800            if (pkg->owner == owner) {
2801                delete pkg;
2802            }
2803        }
2804    }
2805
2806    void clearBagCache() {
2807        if (bags) {
2808            TABLE_NOISY(printf("bags=%p\n", bags));
2809            Package* pkg = packages[0];
2810            TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2811            for (size_t i=0; i<typeCount; i++) {
2812                TABLE_NOISY(printf("type=%d\n", i));
2813                const Type* type = pkg->getType(i);
2814                if (type != NULL) {
2815                    bag_set** typeBags = bags[i];
2816                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2817                    if (typeBags) {
2818                        TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2819                        const size_t N = type->entryCount;
2820                        for (size_t j=0; j<N; j++) {
2821                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2822                                free(typeBags[j]);
2823                        }
2824                        free(typeBags);
2825                    }
2826                }
2827            }
2828            free(bags);
2829            bags = NULL;
2830        }
2831    }
2832
2833    ResTable* const                 owner;
2834    String16 const                  name;
2835    uint32_t const                  id;
2836    Vector<Package*>                packages;
2837
2838    // This is for finding typeStrings and other common package stuff.
2839    Package*                        basePackage;
2840
2841    // For quick access.
2842    size_t                          typeCount;
2843
2844    // Computed attribute bags, first indexed by the type and second
2845    // by the entry in that type.
2846    bag_set***                      bags;
2847
2848    // The table mapping dynamic references to resolved references for
2849    // this package group.
2850    // TODO: We may be able to support dynamic references in overlays
2851    // by having these tables in a per-package scope rather than
2852    // per-package-group.
2853    DynamicRefTable                 dynamicRefTable;
2854};
2855
2856struct ResTable::bag_set
2857{
2858    size_t numAttrs;    // number in array
2859    size_t availAttrs;  // total space in array
2860    uint32_t typeSpecFlags;
2861    // Followed by 'numAttr' bag_entry structures.
2862};
2863
2864ResTable::Theme::Theme(const ResTable& table)
2865    : mTable(table)
2866{
2867    memset(mPackages, 0, sizeof(mPackages));
2868}
2869
2870ResTable::Theme::~Theme()
2871{
2872    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2873        package_info* pi = mPackages[i];
2874        if (pi != NULL) {
2875            free_package(pi);
2876        }
2877    }
2878}
2879
2880void ResTable::Theme::free_package(package_info* pi)
2881{
2882    for (size_t j=0; j<pi->numTypes; j++) {
2883        theme_entry* te = pi->types[j].entries;
2884        if (te != NULL) {
2885            free(te);
2886        }
2887    }
2888    free(pi);
2889}
2890
2891ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2892{
2893    package_info* newpi = (package_info*)malloc(
2894        sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2895    newpi->numTypes = pi->numTypes;
2896    for (size_t j=0; j<newpi->numTypes; j++) {
2897        size_t cnt = pi->types[j].numEntries;
2898        newpi->types[j].numEntries = cnt;
2899        theme_entry* te = pi->types[j].entries;
2900        if (te != NULL) {
2901            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2902            newpi->types[j].entries = newte;
2903            memcpy(newte, te, cnt*sizeof(theme_entry));
2904        } else {
2905            newpi->types[j].entries = NULL;
2906        }
2907    }
2908    return newpi;
2909}
2910
2911status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2912{
2913    const bag_entry* bag;
2914    uint32_t bagTypeSpecFlags = 0;
2915    mTable.lock();
2916    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2917    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2918    if (N < 0) {
2919        mTable.unlock();
2920        return N;
2921    }
2922
2923    uint32_t curPackage = 0xffffffff;
2924    ssize_t curPackageIndex = 0;
2925    package_info* curPI = NULL;
2926    uint32_t curType = 0xffffffff;
2927    size_t numEntries = 0;
2928    theme_entry* curEntries = NULL;
2929
2930    const bag_entry* end = bag + N;
2931    while (bag < end) {
2932        const uint32_t attrRes = bag->map.name.ident;
2933        const uint32_t p = Res_GETPACKAGE(attrRes);
2934        const uint32_t t = Res_GETTYPE(attrRes);
2935        const uint32_t e = Res_GETENTRY(attrRes);
2936
2937        if (curPackage != p) {
2938            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2939            if (pidx < 0) {
2940                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2941                bag++;
2942                continue;
2943            }
2944            curPackage = p;
2945            curPackageIndex = pidx;
2946            curPI = mPackages[pidx];
2947            if (curPI == NULL) {
2948                PackageGroup* const grp = mTable.mPackageGroups[pidx];
2949                int cnt = grp->typeCount;
2950                curPI = (package_info*)malloc(
2951                    sizeof(package_info) + (cnt*sizeof(type_info)));
2952                curPI->numTypes = cnt;
2953                memset(curPI->types, 0, cnt*sizeof(type_info));
2954                mPackages[pidx] = curPI;
2955            }
2956            curType = 0xffffffff;
2957        }
2958        if (curType != t) {
2959            if (t >= curPI->numTypes) {
2960                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2961                bag++;
2962                continue;
2963            }
2964            curType = t;
2965            curEntries = curPI->types[t].entries;
2966            if (curEntries == NULL) {
2967                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2968                const Type* type = grp->packages[0]->getType(t);
2969                int cnt = type != NULL ? type->entryCount : 0;
2970                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2971                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2972                curPI->types[t].numEntries = cnt;
2973                curPI->types[t].entries = curEntries;
2974            }
2975            numEntries = curPI->types[t].numEntries;
2976        }
2977        if (e >= numEntries) {
2978            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2979            bag++;
2980            continue;
2981        }
2982        theme_entry* curEntry = curEntries + e;
2983        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2984                   attrRes, bag->map.value.dataType, bag->map.value.data,
2985             curEntry->value.dataType));
2986        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2987            curEntry->stringBlock = bag->stringBlock;
2988            curEntry->typeSpecFlags |= bagTypeSpecFlags;
2989            curEntry->value = bag->map.value;
2990        }
2991
2992        bag++;
2993    }
2994
2995    mTable.unlock();
2996
2997    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
2998    //dumpToLog();
2999
3000    return NO_ERROR;
3001}
3002
3003status_t ResTable::Theme::setTo(const Theme& other)
3004{
3005    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
3006    //dumpToLog();
3007    //other.dumpToLog();
3008
3009    if (&mTable == &other.mTable) {
3010        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3011            if (mPackages[i] != NULL) {
3012                free_package(mPackages[i]);
3013            }
3014            if (other.mPackages[i] != NULL) {
3015                mPackages[i] = copy_package(other.mPackages[i]);
3016            } else {
3017                mPackages[i] = NULL;
3018            }
3019        }
3020    } else {
3021        // @todo: need to really implement this, not just copy
3022        // the system package (which is still wrong because it isn't
3023        // fixing up resource references).
3024        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3025            if (mPackages[i] != NULL) {
3026                free_package(mPackages[i]);
3027            }
3028            if (i == 0 && other.mPackages[i] != NULL) {
3029                mPackages[i] = copy_package(other.mPackages[i]);
3030            } else {
3031                mPackages[i] = NULL;
3032            }
3033        }
3034    }
3035
3036    //ALOGI("Final theme:");
3037    //dumpToLog();
3038
3039    return NO_ERROR;
3040}
3041
3042ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
3043        uint32_t* outTypeSpecFlags) const
3044{
3045    int cnt = 20;
3046
3047    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
3048
3049    do {
3050        const ssize_t p = mTable.getResourcePackageIndex(resID);
3051        const uint32_t t = Res_GETTYPE(resID);
3052        const uint32_t e = Res_GETENTRY(resID);
3053
3054        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
3055
3056        if (p >= 0) {
3057            const package_info* const pi = mPackages[p];
3058            TABLE_THEME(ALOGI("Found package: %p", pi));
3059            if (pi != NULL) {
3060                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
3061                if (t < pi->numTypes) {
3062                    const type_info& ti = pi->types[t];
3063                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
3064                    if (e < ti.numEntries) {
3065                        const theme_entry& te = ti.entries[e];
3066                        if (outTypeSpecFlags != NULL) {
3067                            *outTypeSpecFlags |= te.typeSpecFlags;
3068                        }
3069                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
3070                                te.value.dataType, te.value.data));
3071                        const uint8_t type = te.value.dataType;
3072                        if (type == Res_value::TYPE_ATTRIBUTE) {
3073                            if (cnt > 0) {
3074                                cnt--;
3075                                resID = te.value.data;
3076                                continue;
3077                            }
3078                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
3079                            return BAD_INDEX;
3080                        } else if (type != Res_value::TYPE_NULL) {
3081                            *outValue = te.value;
3082                            return te.stringBlock;
3083                        }
3084                        return BAD_INDEX;
3085                    }
3086                }
3087            }
3088        }
3089        break;
3090
3091    } while (true);
3092
3093    return BAD_INDEX;
3094}
3095
3096ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
3097        ssize_t blockIndex, uint32_t* outLastRef,
3098        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
3099{
3100    //printf("Resolving type=0x%x\n", inOutValue->dataType);
3101    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
3102        uint32_t newTypeSpecFlags;
3103        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
3104        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
3105             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
3106        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
3107        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
3108        if (blockIndex < 0) {
3109            return blockIndex;
3110        }
3111    }
3112    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
3113            inoutTypeSpecFlags, inoutConfig);
3114}
3115
3116void ResTable::Theme::dumpToLog() const
3117{
3118    ALOGI("Theme %p:\n", this);
3119    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3120        package_info* pi = mPackages[i];
3121        if (pi == NULL) continue;
3122
3123        ALOGI("  Package #0x%02x:\n", (int)(i+1));
3124        for (size_t j=0; j<pi->numTypes; j++) {
3125            type_info& ti = pi->types[j];
3126            if (ti.numEntries == 0) continue;
3127
3128            ALOGI("    Type #0x%02x:\n", (int)(j+1));
3129            for (size_t k=0; k<ti.numEntries; k++) {
3130                theme_entry& te = ti.entries[k];
3131                if (te.value.dataType == Res_value::TYPE_NULL) continue;
3132                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
3133                     (int)Res_MAKEID(i, j, k),
3134                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
3135            }
3136        }
3137    }
3138}
3139
3140ResTable::ResTable()
3141    : mError(NO_INIT), mNextPackageId(2)
3142{
3143    memset(&mParams, 0, sizeof(mParams));
3144    memset(mPackageMap, 0, sizeof(mPackageMap));
3145    //ALOGI("Creating ResTable %p\n", this);
3146}
3147
3148ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData)
3149    : mError(NO_INIT), mNextPackageId(2)
3150{
3151    memset(&mParams, 0, sizeof(mParams));
3152    memset(mPackageMap, 0, sizeof(mPackageMap));
3153    addInternal(data, size, cookie, copyData, NULL /* idMap */);
3154    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
3155    //ALOGI("Creating ResTable %p\n", this);
3156}
3157
3158ResTable::~ResTable()
3159{
3160    //ALOGI("Destroying ResTable in %p\n", this);
3161    uninit();
3162}
3163
3164inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
3165{
3166    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
3167}
3168
3169status_t ResTable::add(const void* data, size_t size) {
3170    return addInternal(data, size, 0 /* cookie */,
3171            false /* copyData */, NULL /* idMap */);
3172}
3173
3174status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData, const void* idmap)
3175{
3176    const void* data = asset->getBuffer(true);
3177    if (data == NULL) {
3178        ALOGW("Unable to get buffer of resource asset file");
3179        return UNKNOWN_ERROR;
3180    }
3181    size_t size = (size_t)asset->getLength();
3182    return addInternal(data, size, cookie, copyData,
3183            reinterpret_cast<const Asset*>(idmap));
3184}
3185
3186status_t ResTable::add(ResTable* src)
3187{
3188    mError = src->mError;
3189
3190    for (size_t i=0; i<src->mHeaders.size(); i++) {
3191        mHeaders.add(src->mHeaders[i]);
3192    }
3193
3194    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
3195        PackageGroup* srcPg = src->mPackageGroups[i];
3196        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
3197        for (size_t j=0; j<srcPg->packages.size(); j++) {
3198            pg->packages.add(srcPg->packages[j]);
3199        }
3200        pg->basePackage = srcPg->basePackage;
3201        pg->typeCount = srcPg->typeCount;
3202        mPackageGroups.add(pg);
3203    }
3204
3205    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
3206
3207    return mError;
3208}
3209
3210status_t ResTable::addEmpty(const int32_t cookie) {
3211    Header* header = new Header(this);
3212    header->index = mHeaders.size();
3213    header->cookie = cookie;
3214    header->values.setToEmpty();
3215    header->ownedData = calloc(1, sizeof(ResTable_header));
3216
3217    ResTable_header* resHeader = (ResTable_header*) header->ownedData;
3218    resHeader->header.type = RES_TABLE_TYPE;
3219    resHeader->header.headerSize = sizeof(ResTable_header);
3220    resHeader->header.size = sizeof(ResTable_header);
3221
3222    header->header = (const ResTable_header*) resHeader;
3223    mHeaders.add(header);
3224    return NO_ERROR;
3225}
3226
3227status_t ResTable::addInternal(const void* data, size_t size, const int32_t cookie,
3228                       bool copyData, const Asset* idmap)
3229{
3230    if (!data) return NO_ERROR;
3231    Header* header = new Header(this);
3232    header->index = mHeaders.size();
3233    header->cookie = cookie;
3234    if (idmap != NULL) {
3235        const size_t idmap_size = idmap->getLength();
3236        const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
3237        header->resourceIDMap = (uint32_t*)malloc(idmap_size);
3238        if (header->resourceIDMap == NULL) {
3239            delete header;
3240            return (mError = NO_MEMORY);
3241        }
3242        memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
3243        header->resourceIDMapSize = idmap_size;
3244    }
3245    mHeaders.add(header);
3246
3247    const bool notDeviceEndian = htods(0xf0) != 0xf0;
3248
3249    LOAD_TABLE_NOISY(
3250        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%d, asset=%p, copy=%d "
3251             "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
3252
3253    if (copyData || notDeviceEndian) {
3254        header->ownedData = malloc(size);
3255        if (header->ownedData == NULL) {
3256            return (mError=NO_MEMORY);
3257        }
3258        memcpy(header->ownedData, data, size);
3259        data = header->ownedData;
3260    }
3261
3262    header->header = (const ResTable_header*)data;
3263    header->size = dtohl(header->header->header.size);
3264    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
3265    //     dtohl(header->header->header.size), header->header->header.size);
3266    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
3267    if (dtohs(header->header->header.headerSize) > header->size
3268            || header->size > size) {
3269        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
3270             (int)dtohs(header->header->header.headerSize),
3271             (int)header->size, (int)size);
3272        return (mError=BAD_TYPE);
3273    }
3274    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
3275        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
3276             (int)dtohs(header->header->header.headerSize),
3277             (int)header->size);
3278        return (mError=BAD_TYPE);
3279    }
3280    header->dataEnd = ((const uint8_t*)header->header) + header->size;
3281
3282    // Iterate through all chunks.
3283    size_t curPackage = 0;
3284
3285    const ResChunk_header* chunk =
3286        (const ResChunk_header*)(((const uint8_t*)header->header)
3287                                 + dtohs(header->header->header.headerSize));
3288    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
3289           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
3290        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
3291        if (err != NO_ERROR) {
3292            return (mError=err);
3293        }
3294        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
3295                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
3296                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3297        const size_t csize = dtohl(chunk->size);
3298        const uint16_t ctype = dtohs(chunk->type);
3299        if (ctype == RES_STRING_POOL_TYPE) {
3300            if (header->values.getError() != NO_ERROR) {
3301                // Only use the first string chunk; ignore any others that
3302                // may appear.
3303                status_t err = header->values.setTo(chunk, csize);
3304                if (err != NO_ERROR) {
3305                    return (mError=err);
3306                }
3307            } else {
3308                ALOGW("Multiple string chunks found in resource table.");
3309            }
3310        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3311            if (curPackage >= dtohl(header->header->packageCount)) {
3312                ALOGW("More package chunks were found than the %d declared in the header.",
3313                     dtohl(header->header->packageCount));
3314                return (mError=BAD_TYPE);
3315            }
3316            uint32_t idmap_id = 0;
3317            if (idmap != NULL) {
3318                uint32_t tmp;
3319                if (getIdmapPackageId(header->resourceIDMap,
3320                                      header->resourceIDMapSize,
3321                                      &tmp) == NO_ERROR) {
3322                    idmap_id = tmp;
3323                }
3324            }
3325            if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
3326                return mError;
3327            }
3328            curPackage++;
3329        } else {
3330            ALOGW("Unknown chunk type 0x%x in table at %p.\n",
3331                 ctype,
3332                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3333        }
3334        chunk = (const ResChunk_header*)
3335            (((const uint8_t*)chunk) + csize);
3336    }
3337
3338    if (curPackage < dtohl(header->header->packageCount)) {
3339        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3340             (int)curPackage, dtohl(header->header->packageCount));
3341        return (mError=BAD_TYPE);
3342    }
3343    mError = header->values.getError();
3344    if (mError != NO_ERROR) {
3345        ALOGW("No string values found in resource table!");
3346    }
3347
3348    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3349    return mError;
3350}
3351
3352status_t ResTable::getError() const
3353{
3354    return mError;
3355}
3356
3357void ResTable::uninit()
3358{
3359    mError = NO_INIT;
3360    size_t N = mPackageGroups.size();
3361    for (size_t i=0; i<N; i++) {
3362        PackageGroup* g = mPackageGroups[i];
3363        delete g;
3364    }
3365    N = mHeaders.size();
3366    for (size_t i=0; i<N; i++) {
3367        Header* header = mHeaders[i];
3368        if (header->owner == this) {
3369            if (header->ownedData) {
3370                free(header->ownedData);
3371            }
3372            delete header;
3373        }
3374    }
3375
3376    mPackageGroups.clear();
3377    mHeaders.clear();
3378}
3379
3380bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3381{
3382    if (mError != NO_ERROR) {
3383        return false;
3384    }
3385
3386    const ssize_t p = getResourcePackageIndex(resID);
3387    const int t = Res_GETTYPE(resID);
3388    const int e = Res_GETENTRY(resID);
3389
3390    if (p < 0) {
3391        if (Res_GETPACKAGE(resID)+1 == 0) {
3392            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3393        } else {
3394            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3395        }
3396        return false;
3397    }
3398    if (t < 0) {
3399        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3400        return false;
3401    }
3402
3403    const PackageGroup* const grp = mPackageGroups[p];
3404    if (grp == NULL) {
3405        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3406        return false;
3407    }
3408    if (grp->packages.size() > 0) {
3409        const Package* const package = grp->packages[0];
3410
3411        const ResTable_type* type;
3412        const ResTable_entry* entry;
3413        ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
3414        if (offset <= 0) {
3415            return false;
3416        }
3417
3418        outName->package = grp->name.string();
3419        outName->packageLen = grp->name.size();
3420        if (allowUtf8) {
3421            outName->type8 = grp->basePackage->typeStrings.string8At(t, &outName->typeLen);
3422            outName->name8 = grp->basePackage->keyStrings.string8At(
3423                dtohl(entry->key.index), &outName->nameLen);
3424        } else {
3425            outName->type8 = NULL;
3426            outName->name8 = NULL;
3427        }
3428        if (outName->type8 == NULL) {
3429            outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
3430            // If we have a bad index for some reason, we should abort.
3431            if (outName->type == NULL) {
3432                return false;
3433            }
3434        }
3435        if (outName->name8 == NULL) {
3436            outName->name = grp->basePackage->keyStrings.stringAt(
3437                dtohl(entry->key.index), &outName->nameLen);
3438            // If we have a bad index for some reason, we should abort.
3439            if (outName->name == NULL) {
3440                return false;
3441            }
3442        }
3443
3444        return true;
3445    }
3446
3447    return false;
3448}
3449
3450ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3451        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3452{
3453    if (mError != NO_ERROR) {
3454        return mError;
3455    }
3456
3457    const ssize_t p = getResourcePackageIndex(resID);
3458    const int t = Res_GETTYPE(resID);
3459    const int e = Res_GETENTRY(resID);
3460
3461    if (p < 0) {
3462        if (Res_GETPACKAGE(resID)+1 == 0) {
3463            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3464        } else {
3465            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3466        }
3467        return BAD_INDEX;
3468    }
3469    if (t < 0) {
3470        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3471        return BAD_INDEX;
3472    }
3473
3474    const Res_value* bestValue = NULL;
3475    const Package* bestPackage = NULL;
3476    ResTable_config bestItem;
3477    memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
3478
3479    if (outSpecFlags != NULL) *outSpecFlags = 0;
3480
3481    // Look through all resource packages, starting with the most
3482    // recently added.
3483    const PackageGroup* const grp = mPackageGroups[p];
3484    if (grp == NULL) {
3485        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3486        return BAD_INDEX;
3487    }
3488
3489    // Allow overriding density
3490    const ResTable_config* desiredConfig = &mParams;
3491    ResTable_config* overrideConfig = NULL;
3492    if (density > 0) {
3493        overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
3494        if (overrideConfig == NULL) {
3495            ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3496            return BAD_INDEX;
3497        }
3498        memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3499        overrideConfig->density = density;
3500        desiredConfig = overrideConfig;
3501    }
3502
3503    ssize_t rc = BAD_VALUE;
3504    size_t ip = grp->packages.size();
3505    while (ip > 0) {
3506        ip--;
3507        int T = t;
3508        int E = e;
3509
3510        const Package* const package = grp->packages[ip];
3511        if (package->header->resourceIDMap) {
3512            uint32_t overlayResID = 0x0;
3513            status_t retval = idmapLookup(package->header->resourceIDMap,
3514                                          package->header->resourceIDMapSize,
3515                                          resID, &overlayResID);
3516            if (retval == NO_ERROR && overlayResID != 0x0) {
3517                // for this loop iteration, this is the type and entry we really want
3518                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3519                T = Res_GETTYPE(overlayResID);
3520                E = Res_GETENTRY(overlayResID);
3521            } else {
3522                // resource not present in overlay package, continue with the next package
3523                continue;
3524            }
3525        }
3526
3527        const ResTable_type* type;
3528        const ResTable_entry* entry;
3529        const Type* typeClass;
3530        ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3531        if (offset <= 0) {
3532            // No {entry, appropriate config} pair found in package. If this
3533            // package is an overlay package (ip != 0), this simply means the
3534            // overlay package did not specify a default.
3535            // Non-overlay packages are still required to provide a default.
3536            if (offset < 0 && ip == 0) {
3537                ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3538                        resID, T, E, ip, (int)offset);
3539                rc = offset;
3540                goto out;
3541            }
3542            continue;
3543        }
3544
3545        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3546            if (!mayBeBag) {
3547                ALOGW("Requesting resource 0x%x failed because it is complex\n",
3548                     resID);
3549            }
3550            continue;
3551        }
3552
3553        if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3554            ALOGW("ResTable_item at %d is beyond type chunk data %d",
3555                 (int)offset, dtohl(type->header.size));
3556            rc = BAD_TYPE;
3557            goto out;
3558        }
3559
3560        const Res_value* item =
3561            (const Res_value*)(((const uint8_t*)type) + offset);
3562        ResTable_config thisConfig;
3563        thisConfig.copyFromDtoH(type->config);
3564
3565        if (outSpecFlags != NULL) {
3566            if (typeClass->typeSpecFlags != NULL) {
3567                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3568            } else {
3569                *outSpecFlags = -1;
3570            }
3571        }
3572
3573        if (bestPackage != NULL &&
3574            (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3575            // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3576            // are identical (diff == 0), or overlay packages will not take effect.
3577            continue;
3578        }
3579
3580        bestItem = thisConfig;
3581        bestValue = item;
3582        bestPackage = package;
3583    }
3584
3585    TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3586
3587    if (bestValue) {
3588        outValue->size = dtohs(bestValue->size);
3589        outValue->res0 = bestValue->res0;
3590        outValue->dataType = bestValue->dataType;
3591        outValue->data = dtohl(bestValue->data);
3592
3593        // The reference may be pointing to a resource in a shared library. These
3594        // references have build-time generated package IDs. These ids may not match
3595        // the actual package IDs of the corresponding packages in this ResTable.
3596        // We need to fix the package ID based on a mapping.
3597        status_t err = grp->dynamicRefTable.lookupResourceValue(outValue);
3598        if (err != NO_ERROR) {
3599            ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data);
3600            rc = BAD_VALUE;
3601            goto out;
3602        }
3603
3604        if (outConfig != NULL) {
3605            *outConfig = bestItem;
3606        }
3607        TABLE_NOISY(size_t len;
3608              printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3609                     bestPackage->header->index,
3610                     outValue->dataType,
3611                     outValue->dataType == bestValue->TYPE_STRING
3612                     ? String8(bestPackage->header->values.stringAt(
3613                         outValue->data, &len)).string()
3614                     : "",
3615                     outValue->data));
3616        rc = bestPackage->header->index;
3617        goto out;
3618    }
3619
3620out:
3621    if (overrideConfig != NULL) {
3622        free(overrideConfig);
3623    }
3624
3625    return rc;
3626}
3627
3628ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3629        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3630        ResTable_config* outConfig) const
3631{
3632    int count=0;
3633    while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE
3634            && value->data != 0 && count < 20) {
3635        if (outLastRef) *outLastRef = value->data;
3636        uint32_t lastRef = value->data;
3637        uint32_t newFlags = 0;
3638        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3639                outConfig);
3640        if (newIndex == BAD_INDEX) {
3641            return BAD_INDEX;
3642        }
3643        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3644             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3645        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3646        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3647        if (newIndex < 0) {
3648            // This can fail if the resource being referenced is a style...
3649            // in this case, just return the reference, and expect the
3650            // caller to deal with.
3651            return blockIndex;
3652        }
3653        blockIndex = newIndex;
3654        count++;
3655    }
3656    return blockIndex;
3657}
3658
3659const char16_t* ResTable::valueToString(
3660    const Res_value* value, size_t stringBlock,
3661    char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen)
3662{
3663    if (!value) {
3664        return NULL;
3665    }
3666    if (value->dataType == value->TYPE_STRING) {
3667        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3668    }
3669    // XXX do int to string conversions.
3670    return NULL;
3671}
3672
3673ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3674{
3675    mLock.lock();
3676    ssize_t err = getBagLocked(resID, outBag);
3677    if (err < NO_ERROR) {
3678        //printf("*** get failed!  unlocking\n");
3679        mLock.unlock();
3680    }
3681    return err;
3682}
3683
3684void ResTable::unlockBag(const bag_entry* /*bag*/) const
3685{
3686    //printf("<<< unlockBag %p\n", this);
3687    mLock.unlock();
3688}
3689
3690void ResTable::lock() const
3691{
3692    mLock.lock();
3693}
3694
3695void ResTable::unlock() const
3696{
3697    mLock.unlock();
3698}
3699
3700ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3701        uint32_t* outTypeSpecFlags) const
3702{
3703    if (mError != NO_ERROR) {
3704        return mError;
3705    }
3706
3707    const ssize_t p = getResourcePackageIndex(resID);
3708    const int t = Res_GETTYPE(resID);
3709    const int e = Res_GETENTRY(resID);
3710
3711    if (p < 0) {
3712        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3713        return BAD_INDEX;
3714    }
3715    if (t < 0) {
3716        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3717        return BAD_INDEX;
3718    }
3719
3720    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3721    PackageGroup* const grp = mPackageGroups[p];
3722    if (grp == NULL) {
3723        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3724        return false;
3725    }
3726
3727    if (t >= (int)grp->typeCount) {
3728        ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3729             t+1, (int)grp->typeCount);
3730        return BAD_INDEX;
3731    }
3732
3733    const Package* const basePackage = grp->packages[0];
3734
3735    const Type* const typeConfigs = basePackage->getType(t);
3736
3737    const size_t NENTRY = typeConfigs->entryCount;
3738    if (e >= (int)NENTRY) {
3739        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3740             e, (int)typeConfigs->entryCount);
3741        return BAD_INDEX;
3742    }
3743
3744    // First see if we've already computed this bag...
3745    if (grp->bags) {
3746        bag_set** typeSet = grp->bags[t];
3747        if (typeSet) {
3748            bag_set* set = typeSet[e];
3749            if (set) {
3750                if (set != (bag_set*)0xFFFFFFFF) {
3751                    if (outTypeSpecFlags != NULL) {
3752                        *outTypeSpecFlags = set->typeSpecFlags;
3753                    }
3754                    *outBag = (bag_entry*)(set+1);
3755                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3756                    return set->numAttrs;
3757                }
3758                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3759                     resID);
3760                return BAD_INDEX;
3761            }
3762        }
3763    }
3764
3765    // Bag not found, we need to compute it!
3766    if (!grp->bags) {
3767        grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3768        if (!grp->bags) return NO_MEMORY;
3769    }
3770
3771    bag_set** typeSet = grp->bags[t];
3772    if (!typeSet) {
3773        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3774        if (!typeSet) return NO_MEMORY;
3775        grp->bags[t] = typeSet;
3776    }
3777
3778    // Mark that we are currently working on this one.
3779    typeSet[e] = (bag_set*)0xFFFFFFFF;
3780
3781    // This is what we are building.
3782    bag_set* set = NULL;
3783
3784    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3785
3786    ResTable_config bestConfig;
3787    memset(&bestConfig, 0, sizeof(bestConfig));
3788
3789    // Now collect all bag attributes from all packages.
3790    size_t ip = grp->packages.size();
3791    while (ip > 0) {
3792        ip--;
3793        int T = t;
3794        int E = e;
3795
3796        const Package* const package = grp->packages[ip];
3797        if (package->header->resourceIDMap) {
3798            uint32_t overlayResID = 0x0;
3799            status_t retval = idmapLookup(package->header->resourceIDMap,
3800                                          package->header->resourceIDMapSize,
3801                                          resID, &overlayResID);
3802            if (retval == NO_ERROR && overlayResID != 0x0) {
3803                // for this loop iteration, this is the type and entry we really want
3804                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3805                T = Res_GETTYPE(overlayResID);
3806                E = Res_GETENTRY(overlayResID);
3807            } else {
3808                // resource not present in overlay package, continue with the next package
3809                continue;
3810            }
3811        }
3812
3813        const ResTable_type* type;
3814        const ResTable_entry* entry;
3815        const Type* typeClass;
3816        ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3817        ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3818        ALOGV("Resulting offset=%d\n", (int)offset);
3819        if (offset <= 0) {
3820            // No {entry, appropriate config} pair found in package. If this
3821            // package is an overlay package (ip != 0), this simply means the
3822            // overlay package did not specify a default.
3823            // Non-overlay packages are still required to provide a default.
3824            if (offset < 0 && ip == 0) {
3825                if (set) free(set);
3826                return offset;
3827            }
3828            continue;
3829        }
3830
3831        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3832            ALOGW("Skipping entry 0x%x in package table %zu because it is not complex!\n",
3833                 resID, ip);
3834            continue;
3835        }
3836
3837        if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3838            continue;
3839        }
3840        bestConfig = type->config;
3841        if (set) {
3842            free(set);
3843            set = NULL;
3844        }
3845
3846        const uint16_t entrySize = dtohs(entry->size);
3847        const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3848            ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3849        const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3850            ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3851
3852        size_t N = count;
3853
3854        TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3855                         entrySize, parent, count));
3856
3857        // If this map inherits from another, we need to start
3858        // with its parent's values.  Otherwise start out empty.
3859        TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3860                           entrySize, parent));
3861        if (parent) {
3862            uint32_t resolvedParent = parent;
3863
3864            // Bags encode a parent reference without using the standard
3865            // Res_value structure. That means we must always try to
3866            // resolve a parent reference in case it is actually a
3867            // TYPE_DYNAMIC_REFERENCE.
3868            status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent);
3869            if (err != NO_ERROR) {
3870                ALOGE("Failed resolving bag parent id 0x%08x", parent);
3871                return UNKNOWN_ERROR;
3872            }
3873
3874            const bag_entry* parentBag;
3875            uint32_t parentTypeSpecFlags = 0;
3876            const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags);
3877            const size_t NT = ((NP >= 0) ? NP : 0) + N;
3878            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3879            if (set == NULL) {
3880                return NO_MEMORY;
3881            }
3882            if (NP > 0) {
3883                memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3884                set->numAttrs = NP;
3885                TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3886            } else {
3887                TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3888                set->numAttrs = 0;
3889            }
3890            set->availAttrs = NT;
3891            set->typeSpecFlags = parentTypeSpecFlags;
3892        } else {
3893            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3894            if (set == NULL) {
3895                return NO_MEMORY;
3896            }
3897            set->numAttrs = 0;
3898            set->availAttrs = N;
3899            set->typeSpecFlags = 0;
3900        }
3901
3902        if (typeClass->typeSpecFlags != NULL) {
3903            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3904        } else {
3905            set->typeSpecFlags = -1;
3906        }
3907
3908        // Now merge in the new attributes...
3909        ssize_t curOff = offset;
3910        const ResTable_map* map;
3911        bag_entry* entries = (bag_entry*)(set+1);
3912        size_t curEntry = 0;
3913        uint32_t pos = 0;
3914        TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3915                     set, entries, set->availAttrs));
3916        while (pos < count) {
3917            TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3918
3919            if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3920                ALOGW("ResTable_map at %d is beyond type chunk data %d",
3921                     (int)curOff, dtohl(type->header.size));
3922                return BAD_TYPE;
3923            }
3924            map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3925            N++;
3926
3927            const uint32_t newName = htodl(map->name.ident);
3928            bool isInside;
3929            uint32_t oldName = 0;
3930            while ((isInside=(curEntry < set->numAttrs))
3931                    && (oldName=entries[curEntry].map.name.ident) < newName) {
3932                TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3933                             curEntry, entries[curEntry].map.name.ident));
3934                curEntry++;
3935            }
3936
3937            if ((!isInside) || oldName != newName) {
3938                // This is a new attribute...  figure out what to do with it.
3939                if (set->numAttrs >= set->availAttrs) {
3940                    // Need to alloc more memory...
3941                    const size_t newAvail = set->availAttrs+N;
3942                    set = (bag_set*)realloc(set,
3943                                            sizeof(bag_set)
3944                                            + sizeof(bag_entry)*newAvail);
3945                    if (set == NULL) {
3946                        return NO_MEMORY;
3947                    }
3948                    set->availAttrs = newAvail;
3949                    entries = (bag_entry*)(set+1);
3950                    TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3951                                 set, entries, set->availAttrs));
3952                }
3953                if (isInside) {
3954                    // Going in the middle, need to make space.
3955                    memmove(entries+curEntry+1, entries+curEntry,
3956                            sizeof(bag_entry)*(set->numAttrs-curEntry));
3957                    set->numAttrs++;
3958                }
3959                TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3960                             curEntry, newName));
3961            } else {
3962                TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3963                             curEntry, oldName));
3964            }
3965
3966            bag_entry* cur = entries+curEntry;
3967
3968            cur->stringBlock = package->header->index;
3969            cur->map.name.ident = newName;
3970            cur->map.value.copyFrom_dtoh(map->value);
3971            status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value);
3972            if (err != NO_ERROR) {
3973                ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data);
3974                return UNKNOWN_ERROR;
3975            }
3976
3977            TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3978                         curEntry, cur, cur->stringBlock, cur->map.name.ident,
3979                         cur->map.value.dataType, cur->map.value.data));
3980
3981            // On to the next!
3982            curEntry++;
3983            pos++;
3984            const size_t size = dtohs(map->value.size);
3985            curOff += size + sizeof(*map)-sizeof(map->value);
3986        };
3987        if (curEntry > set->numAttrs) {
3988            set->numAttrs = curEntry;
3989        }
3990    }
3991
3992    // And this is it...
3993    typeSet[e] = set;
3994    if (set) {
3995        if (outTypeSpecFlags != NULL) {
3996            *outTypeSpecFlags = set->typeSpecFlags;
3997        }
3998        *outBag = (bag_entry*)(set+1);
3999        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
4000        return set->numAttrs;
4001    }
4002    return BAD_INDEX;
4003}
4004
4005void ResTable::setParameters(const ResTable_config* params)
4006{
4007    mLock.lock();
4008    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
4009    mParams = *params;
4010    for (size_t i=0; i<mPackageGroups.size(); i++) {
4011        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
4012        mPackageGroups[i]->clearBagCache();
4013    }
4014    mLock.unlock();
4015}
4016
4017void ResTable::getParameters(ResTable_config* params) const
4018{
4019    mLock.lock();
4020    *params = mParams;
4021    mLock.unlock();
4022}
4023
4024struct id_name_map {
4025    uint32_t id;
4026    size_t len;
4027    char16_t name[6];
4028};
4029
4030const static id_name_map ID_NAMES[] = {
4031    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
4032    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
4033    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
4034    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
4035    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
4036    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
4037    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
4038    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
4039    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
4040    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
4041};
4042
4043uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
4044                                     const char16_t* type, size_t typeLen,
4045                                     const char16_t* package,
4046                                     size_t packageLen,
4047                                     uint32_t* outTypeSpecFlags) const
4048{
4049    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
4050
4051    // Check for internal resource identifier as the very first thing, so
4052    // that we will always find them even when there are no resources.
4053    if (name[0] == '^') {
4054        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
4055        size_t len;
4056        for (int i=0; i<N; i++) {
4057            const id_name_map* m = ID_NAMES + i;
4058            len = m->len;
4059            if (len != nameLen) {
4060                continue;
4061            }
4062            for (size_t j=1; j<len; j++) {
4063                if (m->name[j] != name[j]) {
4064                    goto nope;
4065                }
4066            }
4067            if (outTypeSpecFlags) {
4068                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4069            }
4070            return m->id;
4071nope:
4072            ;
4073        }
4074        if (nameLen > 7) {
4075            if (name[1] == 'i' && name[2] == 'n'
4076                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
4077                && name[6] == '_') {
4078                int index = atoi(String8(name + 7, nameLen - 7).string());
4079                if (Res_CHECKID(index)) {
4080                    ALOGW("Array resource index: %d is too large.",
4081                         index);
4082                    return 0;
4083                }
4084                if (outTypeSpecFlags) {
4085                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4086                }
4087                return  Res_MAKEARRAY(index);
4088            }
4089        }
4090        return 0;
4091    }
4092
4093    if (mError != NO_ERROR) {
4094        return 0;
4095    }
4096
4097    bool fakePublic = false;
4098
4099    // Figure out the package and type we are looking in...
4100
4101    const char16_t* packageEnd = NULL;
4102    const char16_t* typeEnd = NULL;
4103    const char16_t* const nameEnd = name+nameLen;
4104    const char16_t* p = name;
4105    while (p < nameEnd) {
4106        if (*p == ':') packageEnd = p;
4107        else if (*p == '/') typeEnd = p;
4108        p++;
4109    }
4110    if (*name == '@') {
4111        name++;
4112        if (*name == '*') {
4113            fakePublic = true;
4114            name++;
4115        }
4116    }
4117    if (name >= nameEnd) {
4118        return 0;
4119    }
4120
4121    if (packageEnd) {
4122        package = name;
4123        packageLen = packageEnd-name;
4124        name = packageEnd+1;
4125    } else if (!package) {
4126        return 0;
4127    }
4128
4129    if (typeEnd) {
4130        type = name;
4131        typeLen = typeEnd-name;
4132        name = typeEnd+1;
4133    } else if (!type) {
4134        return 0;
4135    }
4136
4137    if (name >= nameEnd) {
4138        return 0;
4139    }
4140    nameLen = nameEnd-name;
4141
4142    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
4143                 String8(type, typeLen).string(),
4144                 String8(name, nameLen).string(),
4145                 String8(package, packageLen).string()));
4146
4147    const size_t NG = mPackageGroups.size();
4148    for (size_t ig=0; ig<NG; ig++) {
4149        const PackageGroup* group = mPackageGroups[ig];
4150
4151        if (strzcmp16(package, packageLen,
4152                      group->name.string(), group->name.size())) {
4153            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
4154            continue;
4155        }
4156
4157        const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
4158        if (ti < 0) {
4159            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
4160            continue;
4161        }
4162
4163        const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
4164        if (ei < 0) {
4165            TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
4166            continue;
4167        }
4168
4169        TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
4170
4171        const Type* const typeConfigs = group->packages[0]->getType(ti);
4172        if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
4173            TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
4174                               String8(group->name).string(), ti));
4175        }
4176
4177        size_t NTC = typeConfigs->configs.size();
4178        for (size_t tci=0; tci<NTC; tci++) {
4179            const ResTable_type* const ty = typeConfigs->configs[tci];
4180            const uint32_t typeOffset = dtohl(ty->entriesStart);
4181
4182            const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
4183            const uint32_t* const eindex = (const uint32_t*)
4184                (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
4185
4186            const size_t NE = dtohl(ty->entryCount);
4187            for (size_t i=0; i<NE; i++) {
4188                uint32_t offset = dtohl(eindex[i]);
4189                if (offset == ResTable_type::NO_ENTRY) {
4190                    continue;
4191                }
4192
4193                offset += typeOffset;
4194
4195                if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
4196                    ALOGW("ResTable_entry at %d is beyond type chunk data %d",
4197                         offset, dtohl(ty->header.size));
4198                    return 0;
4199                }
4200                if ((offset&0x3) != 0) {
4201                    ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
4202                         (int)offset, (int)group->id, (int)ti+1, (int)i,
4203                         String8(package, packageLen).string(),
4204                         String8(type, typeLen).string(),
4205                         String8(name, nameLen).string());
4206                    return 0;
4207                }
4208
4209                const ResTable_entry* const entry = (const ResTable_entry*)
4210                    (((const uint8_t*)ty) + offset);
4211                if (dtohs(entry->size) < sizeof(*entry)) {
4212                    ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
4213                    return BAD_TYPE;
4214                }
4215
4216                TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
4217                                         i, ei, dtohl(entry->key.index)));
4218                if (dtohl(entry->key.index) == (size_t)ei) {
4219                    if (outTypeSpecFlags) {
4220                        *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
4221                        if (fakePublic) {
4222                            *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
4223                        }
4224                    }
4225                    return Res_MAKEID(group->id-1, ti, i);
4226                }
4227            }
4228        }
4229    }
4230
4231    return 0;
4232}
4233
4234bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
4235                                 String16* outPackage,
4236                                 String16* outType,
4237                                 String16* outName,
4238                                 const String16* defType,
4239                                 const String16* defPackage,
4240                                 const char** outErrorMsg,
4241                                 bool* outPublicOnly)
4242{
4243    const char16_t* packageEnd = NULL;
4244    const char16_t* typeEnd = NULL;
4245    const char16_t* p = refStr;
4246    const char16_t* const end = p + refLen;
4247    while (p < end) {
4248        if (*p == ':') packageEnd = p;
4249        else if (*p == '/') {
4250            typeEnd = p;
4251            break;
4252        }
4253        p++;
4254    }
4255    p = refStr;
4256    if (*p == '@') p++;
4257
4258    if (outPublicOnly != NULL) {
4259        *outPublicOnly = true;
4260    }
4261    if (*p == '*') {
4262        p++;
4263        if (outPublicOnly != NULL) {
4264            *outPublicOnly = false;
4265        }
4266    }
4267
4268    if (packageEnd) {
4269        *outPackage = String16(p, packageEnd-p);
4270        p = packageEnd+1;
4271    } else {
4272        if (!defPackage) {
4273            if (outErrorMsg) {
4274                *outErrorMsg = "No resource package specified";
4275            }
4276            return false;
4277        }
4278        *outPackage = *defPackage;
4279    }
4280    if (typeEnd) {
4281        *outType = String16(p, typeEnd-p);
4282        p = typeEnd+1;
4283    } else {
4284        if (!defType) {
4285            if (outErrorMsg) {
4286                *outErrorMsg = "No resource type specified";
4287            }
4288            return false;
4289        }
4290        *outType = *defType;
4291    }
4292    *outName = String16(p, end-p);
4293    if(**outPackage == 0) {
4294        if(outErrorMsg) {
4295            *outErrorMsg = "Resource package cannot be an empty string";
4296        }
4297        return false;
4298    }
4299    if(**outType == 0) {
4300        if(outErrorMsg) {
4301            *outErrorMsg = "Resource type cannot be an empty string";
4302        }
4303        return false;
4304    }
4305    if(**outName == 0) {
4306        if(outErrorMsg) {
4307            *outErrorMsg = "Resource id cannot be an empty string";
4308        }
4309        return false;
4310    }
4311    return true;
4312}
4313
4314static uint32_t get_hex(char c, bool* outError)
4315{
4316    if (c >= '0' && c <= '9') {
4317        return c - '0';
4318    } else if (c >= 'a' && c <= 'f') {
4319        return c - 'a' + 0xa;
4320    } else if (c >= 'A' && c <= 'F') {
4321        return c - 'A' + 0xa;
4322    }
4323    *outError = true;
4324    return 0;
4325}
4326
4327struct unit_entry
4328{
4329    const char* name;
4330    size_t len;
4331    uint8_t type;
4332    uint32_t unit;
4333    float scale;
4334};
4335
4336static const unit_entry unitNames[] = {
4337    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4338    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4339    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4340    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4341    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4342    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4343    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4344    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4345    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4346    { NULL, 0, 0, 0, 0 }
4347};
4348
4349static bool parse_unit(const char* str, Res_value* outValue,
4350                       float* outScale, const char** outEnd)
4351{
4352    const char* end = str;
4353    while (*end != 0 && !isspace((unsigned char)*end)) {
4354        end++;
4355    }
4356    const size_t len = end-str;
4357
4358    const char* realEnd = end;
4359    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4360        realEnd++;
4361    }
4362    if (*realEnd != 0) {
4363        return false;
4364    }
4365
4366    const unit_entry* cur = unitNames;
4367    while (cur->name) {
4368        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4369            outValue->dataType = cur->type;
4370            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4371            *outScale = cur->scale;
4372            *outEnd = end;
4373            //printf("Found unit %s for %s\n", cur->name, str);
4374            return true;
4375        }
4376        cur++;
4377    }
4378
4379    return false;
4380}
4381
4382
4383bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4384{
4385    while (len > 0 && isspace16(*s)) {
4386        s++;
4387        len--;
4388    }
4389
4390    if (len <= 0) {
4391        return false;
4392    }
4393
4394    size_t i = 0;
4395    int32_t val = 0;
4396    bool neg = false;
4397
4398    if (*s == '-') {
4399        neg = true;
4400        i++;
4401    }
4402
4403    if (s[i] < '0' || s[i] > '9') {
4404        return false;
4405    }
4406
4407    // Decimal or hex?
4408    if (s[i] == '0' && s[i+1] == 'x') {
4409        if (outValue)
4410            outValue->dataType = outValue->TYPE_INT_HEX;
4411        i += 2;
4412        bool error = false;
4413        while (i < len && !error) {
4414            val = (val*16) + get_hex(s[i], &error);
4415            i++;
4416        }
4417        if (error) {
4418            return false;
4419        }
4420    } else {
4421        if (outValue)
4422            outValue->dataType = outValue->TYPE_INT_DEC;
4423        while (i < len) {
4424            if (s[i] < '0' || s[i] > '9') {
4425                return false;
4426            }
4427            val = (val*10) + s[i]-'0';
4428            i++;
4429        }
4430    }
4431
4432    if (neg) val = -val;
4433
4434    while (i < len && isspace16(s[i])) {
4435        i++;
4436    }
4437
4438    if (i == len) {
4439        if (outValue)
4440            outValue->data = val;
4441        return true;
4442    }
4443
4444    return false;
4445}
4446
4447bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4448{
4449    while (len > 0 && isspace16(*s)) {
4450        s++;
4451        len--;
4452    }
4453
4454    if (len <= 0) {
4455        return false;
4456    }
4457
4458    char buf[128];
4459    int i=0;
4460    while (len > 0 && *s != 0 && i < 126) {
4461        if (*s > 255) {
4462            return false;
4463        }
4464        buf[i++] = *s++;
4465        len--;
4466    }
4467
4468    if (len > 0) {
4469        return false;
4470    }
4471    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4472        return false;
4473    }
4474
4475    buf[i] = 0;
4476    const char* end;
4477    float f = strtof(buf, (char**)&end);
4478
4479    if (*end != 0 && !isspace((unsigned char)*end)) {
4480        // Might be a unit...
4481        float scale;
4482        if (parse_unit(end, outValue, &scale, &end)) {
4483            f *= scale;
4484            const bool neg = f < 0;
4485            if (neg) f = -f;
4486            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4487            uint32_t radix;
4488            uint32_t shift;
4489            if ((bits&0x7fffff) == 0) {
4490                // Always use 23p0 if there is no fraction, just to make
4491                // things easier to read.
4492                radix = Res_value::COMPLEX_RADIX_23p0;
4493                shift = 23;
4494            } else if ((bits&0xffffffffff800000LL) == 0) {
4495                // Magnitude is zero -- can fit in 0 bits of precision.
4496                radix = Res_value::COMPLEX_RADIX_0p23;
4497                shift = 0;
4498            } else if ((bits&0xffffffff80000000LL) == 0) {
4499                // Magnitude can fit in 8 bits of precision.
4500                radix = Res_value::COMPLEX_RADIX_8p15;
4501                shift = 8;
4502            } else if ((bits&0xffffff8000000000LL) == 0) {
4503                // Magnitude can fit in 16 bits of precision.
4504                radix = Res_value::COMPLEX_RADIX_16p7;
4505                shift = 16;
4506            } else {
4507                // Magnitude needs entire range, so no fractional part.
4508                radix = Res_value::COMPLEX_RADIX_23p0;
4509                shift = 23;
4510            }
4511            int32_t mantissa = (int32_t)(
4512                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4513            if (neg) {
4514                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4515            }
4516            outValue->data |=
4517                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4518                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4519            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4520            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4521            //       radix, shift, outValue->data);
4522            return true;
4523        }
4524        return false;
4525    }
4526
4527    while (*end != 0 && isspace((unsigned char)*end)) {
4528        end++;
4529    }
4530
4531    if (*end == 0) {
4532        if (outValue) {
4533            outValue->dataType = outValue->TYPE_FLOAT;
4534            *(float*)(&outValue->data) = f;
4535            return true;
4536        }
4537    }
4538
4539    return false;
4540}
4541
4542bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4543                             const char16_t* s, size_t len,
4544                             bool preserveSpaces, bool coerceType,
4545                             uint32_t attrID,
4546                             const String16* defType,
4547                             const String16* defPackage,
4548                             Accessor* accessor,
4549                             void* accessorCookie,
4550                             uint32_t attrType,
4551                             bool enforcePrivate) const
4552{
4553    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4554    const char* errorMsg = NULL;
4555
4556    outValue->size = sizeof(Res_value);
4557    outValue->res0 = 0;
4558
4559    // First strip leading/trailing whitespace.  Do this before handling
4560    // escapes, so they can be used to force whitespace into the string.
4561    if (!preserveSpaces) {
4562        while (len > 0 && isspace16(*s)) {
4563            s++;
4564            len--;
4565        }
4566        while (len > 0 && isspace16(s[len-1])) {
4567            len--;
4568        }
4569        // If the string ends with '\', then we keep the space after it.
4570        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4571            len++;
4572        }
4573    }
4574
4575    //printf("Value for: %s\n", String8(s, len).string());
4576
4577    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4578    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4579    bool fromAccessor = false;
4580    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4581        const ssize_t p = getResourcePackageIndex(attrID);
4582        const bag_entry* bag;
4583        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4584        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4585        if (cnt >= 0) {
4586            while (cnt > 0) {
4587                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4588                switch (bag->map.name.ident) {
4589                case ResTable_map::ATTR_TYPE:
4590                    attrType = bag->map.value.data;
4591                    break;
4592                case ResTable_map::ATTR_MIN:
4593                    attrMin = bag->map.value.data;
4594                    break;
4595                case ResTable_map::ATTR_MAX:
4596                    attrMax = bag->map.value.data;
4597                    break;
4598                case ResTable_map::ATTR_L10N:
4599                    l10nReq = bag->map.value.data;
4600                    break;
4601                }
4602                bag++;
4603                cnt--;
4604            }
4605            unlockBag(bag);
4606        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4607            fromAccessor = true;
4608            if (attrType == ResTable_map::TYPE_ENUM
4609                    || attrType == ResTable_map::TYPE_FLAGS
4610                    || attrType == ResTable_map::TYPE_INTEGER) {
4611                accessor->getAttributeMin(attrID, &attrMin);
4612                accessor->getAttributeMax(attrID, &attrMax);
4613            }
4614            if (localizationSetting) {
4615                l10nReq = accessor->getAttributeL10N(attrID);
4616            }
4617        }
4618    }
4619
4620    const bool canStringCoerce =
4621        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4622
4623    if (*s == '@') {
4624        outValue->dataType = outValue->TYPE_REFERENCE;
4625
4626        // Note: we don't check attrType here because the reference can
4627        // be to any other type; we just need to count on the client making
4628        // sure the referenced type is correct.
4629
4630        //printf("Looking up ref: %s\n", String8(s, len).string());
4631
4632        // It's a reference!
4633        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4634            outValue->data = 0;
4635            return true;
4636        } else {
4637            bool createIfNotFound = false;
4638            const char16_t* resourceRefName;
4639            int resourceNameLen;
4640            if (len > 2 && s[1] == '+') {
4641                createIfNotFound = true;
4642                resourceRefName = s + 2;
4643                resourceNameLen = len - 2;
4644            } else if (len > 2 && s[1] == '*') {
4645                enforcePrivate = false;
4646                resourceRefName = s + 2;
4647                resourceNameLen = len - 2;
4648            } else {
4649                createIfNotFound = false;
4650                resourceRefName = s + 1;
4651                resourceNameLen = len - 1;
4652            }
4653            String16 package, type, name;
4654            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4655                                   defType, defPackage, &errorMsg)) {
4656                if (accessor != NULL) {
4657                    accessor->reportError(accessorCookie, errorMsg);
4658                }
4659                return false;
4660            }
4661
4662            uint32_t specFlags = 0;
4663            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4664                    type.size(), package.string(), package.size(), &specFlags);
4665            if (rid != 0) {
4666                if (enforcePrivate) {
4667                    if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4668                        if (accessor != NULL) {
4669                            accessor->reportError(accessorCookie, "Resource is not public.");
4670                        }
4671                        return false;
4672                    }
4673                }
4674
4675                if (accessor) {
4676                    rid = Res_MAKEID(
4677                        accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4678                        Res_GETTYPE(rid), Res_GETENTRY(rid));
4679                    TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4680                           String8(package).string(), String8(type).string(),
4681                           String8(name).string(), rid));
4682                }
4683
4684                uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4685                if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
4686                    outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4687                }
4688                outValue->data = rid;
4689                return true;
4690            }
4691
4692            if (accessor) {
4693                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4694                                                                       createIfNotFound);
4695                if (rid != 0) {
4696                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4697                           String8(package).string(), String8(type).string(),
4698                           String8(name).string(), rid));
4699                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4700                    if (packageId == 0x00) {
4701                        outValue->data = rid;
4702                        outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4703                        return true;
4704                    } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
4705                        // We accept packageId's generated as 0x01 in order to support
4706                        // building the android system resources
4707                        outValue->data = rid;
4708                        return true;
4709                    }
4710                }
4711            }
4712        }
4713
4714        if (accessor != NULL) {
4715            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4716        }
4717        return false;
4718    }
4719
4720    // if we got to here, and localization is required and it's not a reference,
4721    // complain and bail.
4722    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4723        if (localizationSetting) {
4724            if (accessor != NULL) {
4725                accessor->reportError(accessorCookie, "This attribute must be localized.");
4726            }
4727        }
4728    }
4729
4730    if (*s == '#') {
4731        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4732        uint32_t color = 0;
4733        bool error = false;
4734        if (len == 4) {
4735            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4736            color |= 0xFF000000;
4737            color |= get_hex(s[1], &error) << 20;
4738            color |= get_hex(s[1], &error) << 16;
4739            color |= get_hex(s[2], &error) << 12;
4740            color |= get_hex(s[2], &error) << 8;
4741            color |= get_hex(s[3], &error) << 4;
4742            color |= get_hex(s[3], &error);
4743        } else if (len == 5) {
4744            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4745            color |= get_hex(s[1], &error) << 28;
4746            color |= get_hex(s[1], &error) << 24;
4747            color |= get_hex(s[2], &error) << 20;
4748            color |= get_hex(s[2], &error) << 16;
4749            color |= get_hex(s[3], &error) << 12;
4750            color |= get_hex(s[3], &error) << 8;
4751            color |= get_hex(s[4], &error) << 4;
4752            color |= get_hex(s[4], &error);
4753        } else if (len == 7) {
4754            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4755            color |= 0xFF000000;
4756            color |= get_hex(s[1], &error) << 20;
4757            color |= get_hex(s[2], &error) << 16;
4758            color |= get_hex(s[3], &error) << 12;
4759            color |= get_hex(s[4], &error) << 8;
4760            color |= get_hex(s[5], &error) << 4;
4761            color |= get_hex(s[6], &error);
4762        } else if (len == 9) {
4763            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4764            color |= get_hex(s[1], &error) << 28;
4765            color |= get_hex(s[2], &error) << 24;
4766            color |= get_hex(s[3], &error) << 20;
4767            color |= get_hex(s[4], &error) << 16;
4768            color |= get_hex(s[5], &error) << 12;
4769            color |= get_hex(s[6], &error) << 8;
4770            color |= get_hex(s[7], &error) << 4;
4771            color |= get_hex(s[8], &error);
4772        } else {
4773            error = true;
4774        }
4775        if (!error) {
4776            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4777                if (!canStringCoerce) {
4778                    if (accessor != NULL) {
4779                        accessor->reportError(accessorCookie,
4780                                "Color types not allowed");
4781                    }
4782                    return false;
4783                }
4784            } else {
4785                outValue->data = color;
4786                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4787                return true;
4788            }
4789        } else {
4790            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4791                if (accessor != NULL) {
4792                    accessor->reportError(accessorCookie, "Color value not valid --"
4793                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4794                }
4795                #if 0
4796                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4797                        "Resource File", //(const char*)in->getPrintableSource(),
4798                        String8(*curTag).string(),
4799                        String8(s, len).string());
4800                #endif
4801                return false;
4802            }
4803        }
4804    }
4805
4806    if (*s == '?') {
4807        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4808
4809        // Note: we don't check attrType here because the reference can
4810        // be to any other type; we just need to count on the client making
4811        // sure the referenced type is correct.
4812
4813        //printf("Looking up attr: %s\n", String8(s, len).string());
4814
4815        static const String16 attr16("attr");
4816        String16 package, type, name;
4817        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4818                               &attr16, defPackage, &errorMsg)) {
4819            if (accessor != NULL) {
4820                accessor->reportError(accessorCookie, errorMsg);
4821            }
4822            return false;
4823        }
4824
4825        //printf("Pkg: %s, Type: %s, Name: %s\n",
4826        //       String8(package).string(), String8(type).string(),
4827        //       String8(name).string());
4828        uint32_t specFlags = 0;
4829        uint32_t rid =
4830            identifierForName(name.string(), name.size(),
4831                              type.string(), type.size(),
4832                              package.string(), package.size(), &specFlags);
4833        if (rid != 0) {
4834            if (enforcePrivate) {
4835                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4836                    if (accessor != NULL) {
4837                        accessor->reportError(accessorCookie, "Attribute is not public.");
4838                    }
4839                    return false;
4840                }
4841            }
4842            if (!accessor) {
4843                outValue->data = rid;
4844                return true;
4845            }
4846            rid = Res_MAKEID(
4847                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4848                Res_GETTYPE(rid), Res_GETENTRY(rid));
4849            //printf("Incl %s:%s/%s: 0x%08x\n",
4850            //       String8(package).string(), String8(type).string(),
4851            //       String8(name).string(), rid);
4852            outValue->data = rid;
4853            return true;
4854        }
4855
4856        if (accessor) {
4857            uint32_t rid = accessor->getCustomResource(package, type, name);
4858            if (rid != 0) {
4859                //printf("Mine %s:%s/%s: 0x%08x\n",
4860                //       String8(package).string(), String8(type).string(),
4861                //       String8(name).string(), rid);
4862                outValue->data = rid;
4863                return true;
4864            }
4865        }
4866
4867        if (accessor != NULL) {
4868            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4869        }
4870        return false;
4871    }
4872
4873    if (stringToInt(s, len, outValue)) {
4874        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4875            // If this type does not allow integers, but does allow floats,
4876            // fall through on this error case because the float type should
4877            // be able to accept any integer value.
4878            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4879                if (accessor != NULL) {
4880                    accessor->reportError(accessorCookie, "Integer types not allowed");
4881                }
4882                return false;
4883            }
4884        } else {
4885            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4886                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4887                if (accessor != NULL) {
4888                    accessor->reportError(accessorCookie, "Integer value out of range");
4889                }
4890                return false;
4891            }
4892            return true;
4893        }
4894    }
4895
4896    if (stringToFloat(s, len, outValue)) {
4897        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4898            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4899                return true;
4900            }
4901            if (!canStringCoerce) {
4902                if (accessor != NULL) {
4903                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4904                }
4905                return false;
4906            }
4907        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4908            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4909                return true;
4910            }
4911            if (!canStringCoerce) {
4912                if (accessor != NULL) {
4913                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4914                }
4915                return false;
4916            }
4917        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4918            if (!canStringCoerce) {
4919                if (accessor != NULL) {
4920                    accessor->reportError(accessorCookie, "Float types not allowed");
4921                }
4922                return false;
4923            }
4924        } else {
4925            return true;
4926        }
4927    }
4928
4929    if (len == 4) {
4930        if ((s[0] == 't' || s[0] == 'T') &&
4931            (s[1] == 'r' || s[1] == 'R') &&
4932            (s[2] == 'u' || s[2] == 'U') &&
4933            (s[3] == 'e' || s[3] == 'E')) {
4934            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4935                if (!canStringCoerce) {
4936                    if (accessor != NULL) {
4937                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4938                    }
4939                    return false;
4940                }
4941            } else {
4942                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4943                outValue->data = (uint32_t)-1;
4944                return true;
4945            }
4946        }
4947    }
4948
4949    if (len == 5) {
4950        if ((s[0] == 'f' || s[0] == 'F') &&
4951            (s[1] == 'a' || s[1] == 'A') &&
4952            (s[2] == 'l' || s[2] == 'L') &&
4953            (s[3] == 's' || s[3] == 'S') &&
4954            (s[4] == 'e' || s[4] == 'E')) {
4955            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4956                if (!canStringCoerce) {
4957                    if (accessor != NULL) {
4958                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4959                    }
4960                    return false;
4961                }
4962            } else {
4963                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4964                outValue->data = 0;
4965                return true;
4966            }
4967        }
4968    }
4969
4970    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4971        const ssize_t p = getResourcePackageIndex(attrID);
4972        const bag_entry* bag;
4973        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4974        //printf("Got %d for enum\n", cnt);
4975        if (cnt >= 0) {
4976            resource_name rname;
4977            while (cnt > 0) {
4978                if (!Res_INTERNALID(bag->map.name.ident)) {
4979                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4980                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4981                        #if 0
4982                        printf("Matching %s against %s (0x%08x)\n",
4983                               String8(s, len).string(),
4984                               String8(rname.name, rname.nameLen).string(),
4985                               bag->map.name.ident);
4986                        #endif
4987                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4988                            outValue->dataType = bag->map.value.dataType;
4989                            outValue->data = bag->map.value.data;
4990                            unlockBag(bag);
4991                            return true;
4992                        }
4993                    }
4994
4995                }
4996                bag++;
4997                cnt--;
4998            }
4999            unlockBag(bag);
5000        }
5001
5002        if (fromAccessor) {
5003            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
5004                return true;
5005            }
5006        }
5007    }
5008
5009    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
5010        const ssize_t p = getResourcePackageIndex(attrID);
5011        const bag_entry* bag;
5012        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
5013        //printf("Got %d for flags\n", cnt);
5014        if (cnt >= 0) {
5015            bool failed = false;
5016            resource_name rname;
5017            outValue->dataType = Res_value::TYPE_INT_HEX;
5018            outValue->data = 0;
5019            const char16_t* end = s + len;
5020            const char16_t* pos = s;
5021            while (pos < end && !failed) {
5022                const char16_t* start = pos;
5023                pos++;
5024                while (pos < end && *pos != '|') {
5025                    pos++;
5026                }
5027                //printf("Looking for: %s\n", String8(start, pos-start).string());
5028                const bag_entry* bagi = bag;
5029                ssize_t i;
5030                for (i=0; i<cnt; i++, bagi++) {
5031                    if (!Res_INTERNALID(bagi->map.name.ident)) {
5032                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
5033                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
5034                            #if 0
5035                            printf("Matching %s against %s (0x%08x)\n",
5036                                   String8(start,pos-start).string(),
5037                                   String8(rname.name, rname.nameLen).string(),
5038                                   bagi->map.name.ident);
5039                            #endif
5040                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
5041                                outValue->data |= bagi->map.value.data;
5042                                break;
5043                            }
5044                        }
5045                    }
5046                }
5047                if (i >= cnt) {
5048                    // Didn't find this flag identifier.
5049                    failed = true;
5050                }
5051                if (pos < end) {
5052                    pos++;
5053                }
5054            }
5055            unlockBag(bag);
5056            if (!failed) {
5057                //printf("Final flag value: 0x%lx\n", outValue->data);
5058                return true;
5059            }
5060        }
5061
5062
5063        if (fromAccessor) {
5064            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
5065                //printf("Final flag value: 0x%lx\n", outValue->data);
5066                return true;
5067            }
5068        }
5069    }
5070
5071    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
5072        if (accessor != NULL) {
5073            accessor->reportError(accessorCookie, "String types not allowed");
5074        }
5075        return false;
5076    }
5077
5078    // Generic string handling...
5079    outValue->dataType = outValue->TYPE_STRING;
5080    if (outString) {
5081        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
5082        if (accessor != NULL) {
5083            accessor->reportError(accessorCookie, errorMsg);
5084        }
5085        return failed;
5086    }
5087
5088    return true;
5089}
5090
5091bool ResTable::collectString(String16* outString,
5092                             const char16_t* s, size_t len,
5093                             bool preserveSpaces,
5094                             const char** outErrorMsg,
5095                             bool append)
5096{
5097    String16 tmp;
5098
5099    char quoted = 0;
5100    const char16_t* p = s;
5101    while (p < (s+len)) {
5102        while (p < (s+len)) {
5103            const char16_t c = *p;
5104            if (c == '\\') {
5105                break;
5106            }
5107            if (!preserveSpaces) {
5108                if (quoted == 0 && isspace16(c)
5109                    && (c != ' ' || isspace16(*(p+1)))) {
5110                    break;
5111                }
5112                if (c == '"' && (quoted == 0 || quoted == '"')) {
5113                    break;
5114                }
5115                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
5116                    /*
5117                     * In practice, when people write ' instead of \'
5118                     * in a string, they are doing it by accident
5119                     * instead of really meaning to use ' as a quoting
5120                     * character.  Warn them so they don't lose it.
5121                     */
5122                    if (outErrorMsg) {
5123                        *outErrorMsg = "Apostrophe not preceded by \\";
5124                    }
5125                    return false;
5126                }
5127            }
5128            p++;
5129        }
5130        if (p < (s+len)) {
5131            if (p > s) {
5132                tmp.append(String16(s, p-s));
5133            }
5134            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
5135                if (quoted == 0) {
5136                    quoted = *p;
5137                } else {
5138                    quoted = 0;
5139                }
5140                p++;
5141            } else if (!preserveSpaces && isspace16(*p)) {
5142                // Space outside of a quote -- consume all spaces and
5143                // leave a single plain space char.
5144                tmp.append(String16(" "));
5145                p++;
5146                while (p < (s+len) && isspace16(*p)) {
5147                    p++;
5148                }
5149            } else if (*p == '\\') {
5150                p++;
5151                if (p < (s+len)) {
5152                    switch (*p) {
5153                    case 't':
5154                        tmp.append(String16("\t"));
5155                        break;
5156                    case 'n':
5157                        tmp.append(String16("\n"));
5158                        break;
5159                    case '#':
5160                        tmp.append(String16("#"));
5161                        break;
5162                    case '@':
5163                        tmp.append(String16("@"));
5164                        break;
5165                    case '?':
5166                        tmp.append(String16("?"));
5167                        break;
5168                    case '"':
5169                        tmp.append(String16("\""));
5170                        break;
5171                    case '\'':
5172                        tmp.append(String16("'"));
5173                        break;
5174                    case '\\':
5175                        tmp.append(String16("\\"));
5176                        break;
5177                    case 'u':
5178                    {
5179                        char16_t chr = 0;
5180                        int i = 0;
5181                        while (i < 4 && p[1] != 0) {
5182                            p++;
5183                            i++;
5184                            int c;
5185                            if (*p >= '0' && *p <= '9') {
5186                                c = *p - '0';
5187                            } else if (*p >= 'a' && *p <= 'f') {
5188                                c = *p - 'a' + 10;
5189                            } else if (*p >= 'A' && *p <= 'F') {
5190                                c = *p - 'A' + 10;
5191                            } else {
5192                                if (outErrorMsg) {
5193                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
5194                                }
5195                                return false;
5196                            }
5197                            chr = (chr<<4) | c;
5198                        }
5199                        tmp.append(String16(&chr, 1));
5200                    } break;
5201                    default:
5202                        // ignore unknown escape chars.
5203                        break;
5204                    }
5205                    p++;
5206                }
5207            }
5208            len -= (p-s);
5209            s = p;
5210        }
5211    }
5212
5213    if (tmp.size() != 0) {
5214        if (len > 0) {
5215            tmp.append(String16(s, len));
5216        }
5217        if (append) {
5218            outString->append(tmp);
5219        } else {
5220            outString->setTo(tmp);
5221        }
5222    } else {
5223        if (append) {
5224            outString->append(String16(s, len));
5225        } else {
5226            outString->setTo(s, len);
5227        }
5228    }
5229
5230    return true;
5231}
5232
5233size_t ResTable::getBasePackageCount() const
5234{
5235    if (mError != NO_ERROR) {
5236        return 0;
5237    }
5238    return mPackageGroups.size();
5239}
5240
5241const String16 ResTable::getBasePackageName(size_t idx) const
5242{
5243    if (mError != NO_ERROR) {
5244        return String16();
5245    }
5246    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5247                 "Requested package index %d past package count %d",
5248                 (int)idx, (int)mPackageGroups.size());
5249    return mPackageGroups[idx]->name;
5250}
5251
5252uint32_t ResTable::getBasePackageId(size_t idx) const
5253{
5254    if (mError != NO_ERROR) {
5255        return 0;
5256    }
5257    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5258                 "Requested package index %d past package count %d",
5259                 (int)idx, (int)mPackageGroups.size());
5260    return mPackageGroups[idx]->id;
5261}
5262
5263size_t ResTable::getTableCount() const
5264{
5265    return mHeaders.size();
5266}
5267
5268const ResStringPool* ResTable::getTableStringBlock(size_t index) const
5269{
5270    return &mHeaders[index]->values;
5271}
5272
5273int32_t ResTable::getTableCookie(size_t index) const
5274{
5275    return mHeaders[index]->cookie;
5276}
5277
5278const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const
5279{
5280    const size_t N = mPackageGroups.size();
5281    for (size_t i = 0; i < N; i++) {
5282        const PackageGroup* pg = mPackageGroups[i];
5283        size_t M = pg->packages.size();
5284        for (size_t j = 0; j < M; j++) {
5285            if (pg->packages[j]->header->cookie == cookie) {
5286                return &pg->dynamicRefTable;
5287            }
5288        }
5289    }
5290    return NULL;
5291}
5292
5293void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
5294{
5295    const size_t I = mPackageGroups.size();
5296    for (size_t i=0; i<I; i++) {
5297        const PackageGroup* packageGroup = mPackageGroups[i];
5298        const size_t J = packageGroup->packages.size();
5299        for (size_t j=0; j<J; j++) {
5300            const Package* package = packageGroup->packages[j];
5301            const size_t K = package->types.size();
5302            for (size_t k=0; k<K; k++) {
5303                const Type* type = package->types[k];
5304                if (type == NULL) continue;
5305                const size_t L = type->configs.size();
5306                for (size_t l=0; l<L; l++) {
5307                    const ResTable_type* config = type->configs[l];
5308                    ResTable_config cfg;
5309                    memset(&cfg, 0, sizeof(ResTable_config));
5310                    cfg.copyFromDtoH(config->config);
5311                    // only insert unique
5312                    const size_t M = configs->size();
5313                    size_t m;
5314                    for (m=0; m<M; m++) {
5315                        if (0 == (*configs)[m].compare(cfg)) {
5316                            break;
5317                        }
5318                    }
5319                    // if we didn't find it
5320                    if (m == M) {
5321                        configs->add(cfg);
5322                    }
5323                }
5324            }
5325        }
5326    }
5327}
5328
5329void ResTable::getLocales(Vector<String8>* locales) const
5330{
5331    Vector<ResTable_config> configs;
5332    ALOGV("calling getConfigurations");
5333    getConfigurations(&configs);
5334    ALOGV("called getConfigurations size=%d", (int)configs.size());
5335    const size_t I = configs.size();
5336
5337    char locale[RESTABLE_MAX_LOCALE_LEN];
5338    for (size_t i=0; i<I; i++) {
5339        configs[i].getBcp47Locale(locale);
5340        const size_t J = locales->size();
5341        size_t j;
5342        for (j=0; j<J; j++) {
5343            if (0 == strcmp(locale, (*locales)[j].string())) {
5344                break;
5345            }
5346        }
5347        if (j == J) {
5348            locales->add(String8(locale));
5349        }
5350    }
5351}
5352
5353ssize_t ResTable::getEntry(
5354    const Package* package, int typeIndex, int entryIndex,
5355    const ResTable_config* config,
5356    const ResTable_type** outType, const ResTable_entry** outEntry,
5357    const Type** outTypeClass) const
5358{
5359    ALOGV("Getting entry from package %p\n", package);
5360    const ResTable_package* const pkg = package->package;
5361
5362    const Type* allTypes = package->getType(typeIndex);
5363    ALOGV("allTypes=%p\n", allTypes);
5364    if (allTypes == NULL) {
5365        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5366        return 0;
5367    }
5368
5369    if ((size_t)entryIndex >= allTypes->entryCount) {
5370        ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
5371            entryIndex, (int)allTypes->entryCount);
5372        return BAD_TYPE;
5373    }
5374
5375    const ResTable_type* type = NULL;
5376    uint32_t offset = ResTable_type::NO_ENTRY;
5377    ResTable_config bestConfig;
5378    memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
5379
5380    const size_t NT = allTypes->configs.size();
5381    for (size_t i=0; i<NT; i++) {
5382        const ResTable_type* const thisType = allTypes->configs[i];
5383        if (thisType == NULL) continue;
5384
5385        ResTable_config thisConfig;
5386        thisConfig.copyFromDtoH(thisType->config);
5387
5388        TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
5389                           entryIndex, typeIndex+1, dtohl(thisType->config.size),
5390                           thisConfig.toString().string()));
5391
5392        // Check to make sure this one is valid for the current parameters.
5393        if (config && !thisConfig.match(*config)) {
5394            TABLE_GETENTRY(ALOGI("Does not match config!\n"));
5395            continue;
5396        }
5397
5398        // Check if there is the desired entry in this type.
5399
5400        const uint8_t* const end = ((const uint8_t*)thisType)
5401            + dtohl(thisType->header.size);
5402        const uint32_t* const eindex = (const uint32_t*)
5403            (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
5404
5405        uint32_t thisOffset = dtohl(eindex[entryIndex]);
5406        if (thisOffset == ResTable_type::NO_ENTRY) {
5407            TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
5408            continue;
5409        }
5410
5411        if (type != NULL) {
5412            // Check if this one is less specific than the last found.  If so,
5413            // we will skip it.  We check starting with things we most care
5414            // about to those we least care about.
5415            if (!thisConfig.isBetterThan(bestConfig, config)) {
5416                TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
5417                continue;
5418            }
5419        }
5420
5421        type = thisType;
5422        offset = thisOffset;
5423        bestConfig = thisConfig;
5424        TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
5425        if (!config) break;
5426    }
5427
5428    if (type == NULL) {
5429        TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
5430        return BAD_INDEX;
5431    }
5432
5433    offset += dtohl(type->entriesStart);
5434    TABLE_NOISY(ALOGD("Looking in resource table %p, typeOff=%p, offset=%p",
5435            package->header->header, (void*)(((const char*)type)-((const char*)package->header->header)),
5436            (void*)offset));
5437
5438    if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
5439        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5440             offset, dtohl(type->header.size));
5441        return BAD_TYPE;
5442    }
5443    if ((offset&0x3) != 0) {
5444        ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
5445             offset);
5446        return BAD_TYPE;
5447    }
5448
5449    const ResTable_entry* const entry = (const ResTable_entry*)
5450        (((const uint8_t*)type) + offset);
5451    if (dtohs(entry->size) < sizeof(*entry)) {
5452        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5453        return BAD_TYPE;
5454    }
5455
5456    *outType = type;
5457    *outEntry = entry;
5458    if (outTypeClass != NULL) {
5459        *outTypeClass = allTypes;
5460    }
5461    return offset + dtohs(entry->size);
5462}
5463
5464status_t ResTable::parsePackage(const ResTable_package* const pkg,
5465                                const Header* const header, uint32_t idmap_id)
5466{
5467    const uint8_t* base = (const uint8_t*)pkg;
5468    status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
5469                                  header->dataEnd, "ResTable_package");
5470    if (err != NO_ERROR) {
5471        return (mError=err);
5472    }
5473
5474    const uint32_t pkgSize = dtohl(pkg->header.size);
5475
5476    if (dtohl(pkg->typeStrings) >= pkgSize) {
5477        ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.",
5478             dtohl(pkg->typeStrings), pkgSize);
5479        return (mError=BAD_TYPE);
5480    }
5481    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5482        ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.",
5483             dtohl(pkg->typeStrings));
5484        return (mError=BAD_TYPE);
5485    }
5486    if (dtohl(pkg->keyStrings) >= pkgSize) {
5487        ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.",
5488             dtohl(pkg->keyStrings), pkgSize);
5489        return (mError=BAD_TYPE);
5490    }
5491    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5492        ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.",
5493             dtohl(pkg->keyStrings));
5494        return (mError=BAD_TYPE);
5495    }
5496
5497    Package* package = NULL;
5498    PackageGroup* group = NULL;
5499    uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
5500    // If at this point id == 0, pkg is an overlay package without a
5501    // corresponding idmap. During regular usage, overlay packages are
5502    // always loaded alongside their idmaps, but during idmap creation
5503    // the package is temporarily loaded by itself.
5504    if (id < 256) {
5505
5506        package = new Package(this, header, pkg);
5507        if (package == NULL) {
5508            return (mError=NO_MEMORY);
5509        }
5510
5511        if (idmap_id == 0) {
5512            err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5513                                           header->dataEnd-(base+dtohl(pkg->typeStrings)));
5514            if (err != NO_ERROR) {
5515                delete group;
5516                delete package;
5517                return (mError=err);
5518            }
5519
5520            err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5521                                          header->dataEnd-(base+dtohl(pkg->keyStrings)));
5522            if (err != NO_ERROR) {
5523                delete group;
5524                delete package;
5525                return (mError=err);
5526            }
5527        }
5528
5529        if (id == 0) {
5530            // This is a library so assign an ID
5531            id = mNextPackageId++;
5532        }
5533
5534        size_t idx = mPackageMap[id];
5535        if (idx == 0) {
5536            idx = mPackageGroups.size()+1;
5537
5538            char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5539            strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5540            group = new PackageGroup(this, String16(tmpName), id);
5541            if (group == NULL) {
5542                delete package;
5543                return (mError=NO_MEMORY);
5544            }
5545
5546            //printf("Adding new package id %d at index %d\n", id, idx);
5547            err = mPackageGroups.add(group);
5548            if (err < NO_ERROR) {
5549                return (mError=err);
5550            }
5551            group->basePackage = package;
5552
5553            mPackageMap[id] = (uint8_t)idx;
5554
5555            // Find all packages that reference this package
5556            size_t N = mPackageGroups.size();
5557            for (size_t i = 0; i < N; i++) {
5558                mPackageGroups[i]->dynamicRefTable.addMapping(
5559                        group->name, static_cast<uint8_t>(group->id));
5560            }
5561        } else {
5562            group = mPackageGroups.itemAt(idx-1);
5563            if (group == NULL) {
5564                return (mError=UNKNOWN_ERROR);
5565            }
5566        }
5567        err = group->packages.add(package);
5568        if (err < NO_ERROR) {
5569            return (mError=err);
5570        }
5571    } else {
5572        LOG_ALWAYS_FATAL("Package id out of range");
5573        return NO_ERROR;
5574    }
5575
5576
5577    // Iterate through all chunks.
5578    size_t curPackage = 0;
5579
5580    const ResChunk_header* chunk =
5581        (const ResChunk_header*)(((const uint8_t*)pkg)
5582                                 + dtohs(pkg->header.headerSize));
5583    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5584    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5585           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5586        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5587                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5588                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5589        const size_t csize = dtohl(chunk->size);
5590        const uint16_t ctype = dtohs(chunk->type);
5591        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5592            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5593            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5594                                 endPos, "ResTable_typeSpec");
5595            if (err != NO_ERROR) {
5596                return (mError=err);
5597            }
5598
5599            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5600
5601            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5602                                    (void*)(base-(const uint8_t*)chunk),
5603                                    dtohs(typeSpec->header.type),
5604                                    dtohs(typeSpec->header.headerSize),
5605                                    (void*)typeSpecSize));
5606            // look for block overrun or int overflow when multiplying by 4
5607            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5608                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5609                    > typeSpecSize)) {
5610                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5611                     (void*)(dtohs(typeSpec->header.headerSize)
5612                             +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5613                     (void*)typeSpecSize);
5614                return (mError=BAD_TYPE);
5615            }
5616
5617            if (typeSpec->id == 0) {
5618                ALOGW("ResTable_type has an id of 0.");
5619                return (mError=BAD_TYPE);
5620            }
5621
5622            while (package->types.size() < typeSpec->id) {
5623                package->types.add(NULL);
5624            }
5625            Type* t = package->types[typeSpec->id-1];
5626            if (t == NULL) {
5627                t = new Type(header, package, dtohl(typeSpec->entryCount));
5628                package->types.editItemAt(typeSpec->id-1) = t;
5629            } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5630                ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5631                    (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5632                return (mError=BAD_TYPE);
5633            }
5634            t->typeSpecFlags = (const uint32_t*)(
5635                    ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5636            t->typeSpec = typeSpec;
5637
5638        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5639            const ResTable_type* type = (const ResTable_type*)(chunk);
5640            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5641                                 endPos, "ResTable_type");
5642            if (err != NO_ERROR) {
5643                return (mError=err);
5644            }
5645
5646            const uint32_t typeSize = dtohl(type->header.size);
5647
5648            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5649                                    (void*)(base-(const uint8_t*)chunk),
5650                                    dtohs(type->header.type),
5651                                    dtohs(type->header.headerSize),
5652                                    (void*)typeSize));
5653            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5654                > typeSize) {
5655                ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.",
5656                     (void*)(dtohs(type->header.headerSize)
5657                             +(sizeof(uint32_t)*dtohl(type->entryCount))),
5658                     typeSize);
5659                return (mError=BAD_TYPE);
5660            }
5661            if (dtohl(type->entryCount) != 0
5662                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5663                ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.",
5664                     dtohl(type->entriesStart), typeSize);
5665                return (mError=BAD_TYPE);
5666            }
5667            if (type->id == 0) {
5668                ALOGW("ResTable_type has an id of 0.");
5669                return (mError=BAD_TYPE);
5670            }
5671
5672            while (package->types.size() < type->id) {
5673                package->types.add(NULL);
5674            }
5675            Type* t = package->types[type->id-1];
5676            if (t == NULL) {
5677                t = new Type(header, package, dtohl(type->entryCount));
5678                package->types.editItemAt(type->id-1) = t;
5679            } else if (dtohl(type->entryCount) != t->entryCount) {
5680                ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5681                    (int)dtohl(type->entryCount), (int)t->entryCount);
5682                return (mError=BAD_TYPE);
5683            }
5684
5685            TABLE_GETENTRY(
5686                ResTable_config thisConfig;
5687                thisConfig.copyFromDtoH(type->config);
5688                ALOGI("Adding config to type %d: %s\n",
5689                      type->id, thisConfig.toString().string()));
5690            t->configs.add(type);
5691        } else if (ctype == RES_TABLE_LIBRARY_TYPE) {
5692            if (group->dynamicRefTable.entries().size() == 0) {
5693                status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk);
5694                if (err != NO_ERROR) {
5695                    return (mError=err);
5696                }
5697
5698                // Fill in the reference table with the entries we already know about.
5699                size_t N = mPackageGroups.size();
5700                for (size_t i = 0; i < N; i++) {
5701                    group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id);
5702                }
5703            } else {
5704                ALOGW("Found multiple library tables, ignoring...");
5705            }
5706        } else {
5707            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5708                                          endPos, "ResTable_package:unknown");
5709            if (err != NO_ERROR) {
5710                return (mError=err);
5711            }
5712        }
5713        chunk = (const ResChunk_header*)
5714            (((const uint8_t*)chunk) + csize);
5715    }
5716
5717    if (group->typeCount == 0) {
5718        group->typeCount = package->types.size();
5719    }
5720
5721    return NO_ERROR;
5722}
5723
5724DynamicRefTable::DynamicRefTable(uint8_t packageId)
5725    : mAssignedPackageId(packageId)
5726{
5727    memset(mLookupTable, 0, sizeof(mLookupTable));
5728
5729    // Reserved package ids
5730    mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
5731    mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
5732}
5733
5734status_t DynamicRefTable::load(const ResTable_lib_header* const header)
5735{
5736    const uint32_t entryCount = dtohl(header->count);
5737    const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount;
5738    const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize);
5739    if (sizeOfEntries > expectedSize) {
5740        ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).",
5741                expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry));
5742        return UNKNOWN_ERROR;
5743    }
5744
5745    const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) +
5746            dtohl(header->header.headerSize));
5747    for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
5748        uint32_t packageId = dtohl(entry->packageId);
5749        char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)];
5750        strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t));
5751        LIB_NOISY(ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(),
5752                dtohl(entry->packageId)));
5753        if (packageId >= 256) {
5754            ALOGE("Bad package id 0x%08x", packageId);
5755            return UNKNOWN_ERROR;
5756        }
5757        mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId);
5758        entry = entry + 1;
5759    }
5760    return NO_ERROR;
5761}
5762
5763status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId)
5764{
5765    ssize_t index = mEntries.indexOfKey(packageName);
5766    if (index < 0) {
5767        return UNKNOWN_ERROR;
5768    }
5769    mLookupTable[mEntries.valueAt(index)] = packageId;
5770    return NO_ERROR;
5771}
5772
5773status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const {
5774    uint32_t res = *resId;
5775    size_t packageId = Res_GETPACKAGE(res) + 1;
5776
5777    if (packageId == APP_PACKAGE_ID) {
5778        // No lookup needs to be done, app package IDs are absolute.
5779        return NO_ERROR;
5780    }
5781
5782    if (packageId == 0) {
5783        // The package ID is 0x00. That means that a shared library is accessing
5784        // its own local resource, so we fix up the resource with the calling
5785        // package ID.
5786        *resId |= ((uint32_t) mAssignedPackageId) << 24;
5787        return NO_ERROR;
5788    }
5789
5790    // Do a proper lookup.
5791    uint8_t translatedId = mLookupTable[packageId];
5792    if (translatedId == 0) {
5793        ALOGV("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.",
5794                (uint8_t)mAssignedPackageId, (uint8_t)packageId);
5795        for (size_t i = 0; i < 256; i++) {
5796            if (mLookupTable[i] != 0) {
5797                ALOGV("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]);
5798            }
5799        }
5800        return UNKNOWN_ERROR;
5801    }
5802
5803    *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24);
5804    return NO_ERROR;
5805}
5806
5807status_t DynamicRefTable::lookupResourceValue(Res_value* value) const {
5808    if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE) {
5809        return NO_ERROR;
5810    }
5811
5812    status_t err = lookupResourceId(&value->data);
5813    if (err != NO_ERROR) {
5814        return err;
5815    }
5816
5817    value->dataType = Res_value::TYPE_REFERENCE;
5818    return NO_ERROR;
5819}
5820
5821status_t ResTable::createIdmap(const ResTable& overlay,
5822        uint32_t targetCrc, uint32_t overlayCrc,
5823        const char* targetPath, const char* overlayPath,
5824        void** outData, size_t* outSize) const
5825{
5826    // see README for details on the format of map
5827    if (mPackageGroups.size() == 0) {
5828        ALOGW("idmap: target package has no package groups, cannot create idmap\n");
5829        return UNKNOWN_ERROR;
5830    }
5831    if (mPackageGroups[0]->packages.size() == 0) {
5832        ALOGW("idmap: target package has no packages in its first package group, "
5833                "cannot create idmap\n");
5834        return UNKNOWN_ERROR;
5835    }
5836
5837    Vector<Vector<uint32_t> > map;
5838    // overlaid packages are assumed to contain only one package group
5839    const PackageGroup* pg = mPackageGroups[0];
5840    const Package* pkg = pg->packages[0];
5841    size_t typeCount = pkg->types.size();
5842    // starting size is header + first item (number of types in map)
5843    *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5844    // overlay packages are assumed to contain only one package group
5845    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5846    const uint32_t pkg_id = pkg->package->id << 24;
5847
5848    for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5849        ssize_t first = -1;
5850        ssize_t last = -1;
5851        const Type* typeConfigs = pkg->getType(typeIndex);
5852        ssize_t mapIndex = map.add();
5853        if (mapIndex < 0) {
5854            return NO_MEMORY;
5855        }
5856        Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5857        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5858            uint32_t resID = pkg_id
5859                | (0x00ff0000 & ((typeIndex+1)<<16))
5860                | (0x0000ffff & (entryIndex));
5861            resource_name resName;
5862            if (!this->getResourceName(resID, false, &resName)) {
5863                ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5864                // add dummy value, or trimming leading/trailing zeroes later will fail
5865                vector.push(0);
5866                continue;
5867            }
5868
5869            const String16 overlayType(resName.type, resName.typeLen);
5870            const String16 overlayName(resName.name, resName.nameLen);
5871            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5872                                                              overlayName.size(),
5873                                                              overlayType.string(),
5874                                                              overlayType.size(),
5875                                                              overlayPackage.string(),
5876                                                              overlayPackage.size());
5877            if (overlayResID != 0) {
5878                overlayResID = pkg_id | (0x00ffffff & overlayResID);
5879                last = Res_GETENTRY(resID);
5880                if (first == -1) {
5881                    first = Res_GETENTRY(resID);
5882                }
5883            }
5884            vector.push(overlayResID);
5885#if 0
5886            if (overlayResID != 0) {
5887                ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5888                     String8(String16(resName.type)).string(),
5889                     String8(String16(resName.name)).string(),
5890                     resID, overlayResID);
5891            }
5892#endif
5893        }
5894
5895        if (first != -1) {
5896            // shave off trailing entries which lack overlay values
5897            const size_t last_past_one = last + 1;
5898            if (last_past_one < vector.size()) {
5899                vector.removeItemsAt(last_past_one, vector.size() - last_past_one);
5900            }
5901            // shave off leading entries which lack overlay values
5902            vector.removeItemsAt(0, first);
5903            // store offset to first overlaid resource ID of this type
5904            vector.insertAt((uint32_t)first, 0, 1);
5905            // reserve space for number and offset of entries, and the actual entries
5906            *outSize += (2 + vector.size()) * sizeof(uint32_t);
5907        } else {
5908            // no entries of current type defined in overlay package
5909            vector.clear();
5910            // reserve space for type offset
5911            *outSize += 1 * sizeof(uint32_t);
5912        }
5913    }
5914
5915    if ((*outData = malloc(*outSize)) == NULL) {
5916        return NO_MEMORY;
5917    }
5918    uint32_t* data = (uint32_t*)*outData;
5919    *data++ = htodl(IDMAP_MAGIC);
5920    *data++ = htodl(targetCrc);
5921    *data++ = htodl(overlayCrc);
5922    const char* paths[] = { targetPath, overlayPath };
5923    for (int j = 0; j < 2; ++j) {
5924        char* p = (char*)data;
5925        const char* path = paths[j];
5926        const size_t I = strlen(path);
5927        if (I > 255) {
5928            ALOGV("path exceeds expected 255 characters: %s\n", path);
5929            return UNKNOWN_ERROR;
5930        }
5931        for (size_t i = 0; i < 256; ++i) {
5932            *p++ = i < I ? path[i] : '\0';
5933        }
5934        data += 256 / sizeof(uint32_t);
5935    }
5936    const size_t mapSize = map.size();
5937    *data++ = htodl(mapSize);
5938    size_t offset = mapSize;
5939    for (size_t i = 0; i < mapSize; ++i) {
5940        const Vector<uint32_t>& vector = map.itemAt(i);
5941        const size_t N = vector.size();
5942        if (N == 0) {
5943            *data++ = htodl(0);
5944        } else {
5945            offset++;
5946            *data++ = htodl(offset);
5947            offset += N;
5948        }
5949    }
5950    if (offset == mapSize) {
5951        ALOGW("idmap: no resources in overlay package present in base package\n");
5952        return UNKNOWN_ERROR;
5953    }
5954    for (size_t i = 0; i < mapSize; ++i) {
5955        const Vector<uint32_t>& vector = map.itemAt(i);
5956        const size_t N = vector.size();
5957        if (N == 0) {
5958            continue;
5959        }
5960        if (N == 1) { // vector expected to hold (offset) + (N > 0 entries)
5961            ALOGW("idmap: type %u supposedly has entries, but no entries found\n", (uint32_t)i);
5962            return UNKNOWN_ERROR;
5963        }
5964        *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5965        for (size_t j = 0; j < N; ++j) {
5966            const uint32_t& overlayResID = vector.itemAt(j);
5967            *data++ = htodl(overlayResID);
5968        }
5969    }
5970
5971    return NO_ERROR;
5972}
5973
5974bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5975                            uint32_t* pTargetCrc, uint32_t* pOverlayCrc,
5976                            String8* pTargetPath, String8* pOverlayPath)
5977{
5978    const uint32_t* map = (const uint32_t*)idmap;
5979    if (!assertIdmapHeader(map, sizeBytes)) {
5980        return false;
5981    }
5982    if (pTargetCrc) {
5983        *pTargetCrc = map[1];
5984    }
5985    if (pOverlayCrc) {
5986        *pOverlayCrc = map[2];
5987    }
5988    if (pTargetPath) {
5989        pTargetPath->setTo(reinterpret_cast<const char*>(map + 3));
5990    }
5991    if (pOverlayPath) {
5992        pOverlayPath->setTo(reinterpret_cast<const char*>(map + 3 + 256 / sizeof(uint32_t)));
5993    }
5994    return true;
5995}
5996
5997
5998#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5999
6000#define CHAR16_ARRAY_EQ(constant, var, len) \
6001        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
6002
6003static void print_complex(uint32_t complex, bool isFraction)
6004{
6005    const float MANTISSA_MULT =
6006        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
6007    const float RADIX_MULTS[] = {
6008        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
6009        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
6010    };
6011
6012    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
6013                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
6014            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
6015                            & Res_value::COMPLEX_RADIX_MASK];
6016    printf("%f", value);
6017
6018    if (!isFraction) {
6019        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6020            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
6021            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
6022            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
6023            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
6024            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
6025            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
6026            default: printf(" (unknown unit)"); break;
6027        }
6028    } else {
6029        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6030            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
6031            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
6032            default: printf(" (unknown unit)"); break;
6033        }
6034    }
6035}
6036
6037// Normalize a string for output
6038String8 ResTable::normalizeForOutput( const char *input )
6039{
6040    String8 ret;
6041    char buff[2];
6042    buff[1] = '\0';
6043
6044    while (*input != '\0') {
6045        switch (*input) {
6046            // All interesting characters are in the ASCII zone, so we are making our own lives
6047            // easier by scanning the string one byte at a time.
6048        case '\\':
6049            ret += "\\\\";
6050            break;
6051        case '\n':
6052            ret += "\\n";
6053            break;
6054        case '"':
6055            ret += "\\\"";
6056            break;
6057        default:
6058            buff[0] = *input;
6059            ret += buff;
6060            break;
6061        }
6062
6063        input++;
6064    }
6065
6066    return ret;
6067}
6068
6069void ResTable::print_value(const Package* pkg, const Res_value& value) const
6070{
6071    if (value.dataType == Res_value::TYPE_NULL) {
6072        printf("(null)\n");
6073    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
6074        printf("(reference) 0x%08x\n", value.data);
6075    } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) {
6076        printf("(dynamic reference) 0x%08x\n", value.data);
6077    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
6078        printf("(attribute) 0x%08x\n", value.data);
6079    } else if (value.dataType == Res_value::TYPE_STRING) {
6080        size_t len;
6081        const char* str8 = pkg->header->values.string8At(
6082                value.data, &len);
6083        if (str8 != NULL) {
6084            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
6085        } else {
6086            const char16_t* str16 = pkg->header->values.stringAt(
6087                    value.data, &len);
6088            if (str16 != NULL) {
6089                printf("(string16) \"%s\"\n",
6090                    normalizeForOutput(String8(str16, len).string()).string());
6091            } else {
6092                printf("(string) null\n");
6093            }
6094        }
6095    } else if (value.dataType == Res_value::TYPE_FLOAT) {
6096        printf("(float) %g\n", *(const float*)&value.data);
6097    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
6098        printf("(dimension) ");
6099        print_complex(value.data, false);
6100        printf("\n");
6101    } else if (value.dataType == Res_value::TYPE_FRACTION) {
6102        printf("(fraction) ");
6103        print_complex(value.data, true);
6104        printf("\n");
6105    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
6106            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
6107        printf("(color) #%08x\n", value.data);
6108    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
6109        printf("(boolean) %s\n", value.data ? "true" : "false");
6110    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
6111            || value.dataType <= Res_value::TYPE_LAST_INT) {
6112        printf("(int) 0x%08x or %d\n", value.data, value.data);
6113    } else {
6114        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
6115               (int)value.dataType, (int)value.data,
6116               (int)value.size, (int)value.res0);
6117    }
6118}
6119
6120void ResTable::print(bool inclValues) const
6121{
6122    if (mError != 0) {
6123        printf("mError=0x%x (%s)\n", mError, strerror(mError));
6124    }
6125#if 0
6126    char localeStr[RESTABLE_MAX_LOCALE_LEN];
6127    mParams.getBcp47Locale(localeStr);
6128    printf("mParams=%s,\n" localeStr);
6129#endif
6130    size_t pgCount = mPackageGroups.size();
6131    printf("Package Groups (%d)\n", (int)pgCount);
6132    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
6133        const PackageGroup* pg = mPackageGroups[pgIndex];
6134        printf("Package Group %d id=%d packageCount=%d name=%s\n",
6135                (int)pgIndex, pg->id, (int)pg->packages.size(),
6136                String8(pg->name).string());
6137
6138        size_t pkgCount = pg->packages.size();
6139        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
6140            const Package* pkg = pg->packages[pkgIndex];
6141            size_t typeCount = pkg->types.size();
6142            printf("  Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
6143                    pkg->package->id, String8(String16(pkg->package->name)).string(),
6144                    (int)typeCount);
6145            for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
6146                const Type* typeConfigs = pkg->getType(typeIndex);
6147                if (typeConfigs == NULL) {
6148                    printf("    type %d NULL\n", (int)typeIndex);
6149                    continue;
6150                }
6151                const size_t NTC = typeConfigs->configs.size();
6152                printf("    type %d configCount=%d entryCount=%d\n",
6153                       (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
6154                if (typeConfigs->typeSpecFlags != NULL) {
6155                    for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
6156                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
6157                                    | (0x00ff0000 & ((typeIndex+1)<<16))
6158                                    | (0x0000ffff & (entryIndex));
6159                        // Since we are creating resID without actually
6160                        // iterating over them, we have no idea which is a
6161                        // dynamic reference. We must check.
6162                        pg->dynamicRefTable.lookupResourceId(&resID);
6163
6164                        resource_name resName;
6165                        if (this->getResourceName(resID, true, &resName)) {
6166                            String8 type8;
6167                            String8 name8;
6168                            if (resName.type8 != NULL) {
6169                                type8 = String8(resName.type8, resName.typeLen);
6170                            } else {
6171                                type8 = String8(resName.type, resName.typeLen);
6172                            }
6173                            if (resName.name8 != NULL) {
6174                                name8 = String8(resName.name8, resName.nameLen);
6175                            } else {
6176                                name8 = String8(resName.name, resName.nameLen);
6177                            }
6178                            printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
6179                                resID,
6180                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
6181                                type8.string(), name8.string(),
6182                                dtohl(typeConfigs->typeSpecFlags[entryIndex]));
6183                        } else {
6184                            printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
6185                        }
6186                    }
6187                }
6188                for (size_t configIndex=0; configIndex<NTC; configIndex++) {
6189                    const ResTable_type* type = typeConfigs->configs[configIndex];
6190                    if ((((uint64_t)type)&0x3) != 0) {
6191                        printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
6192                        continue;
6193                    }
6194                    String8 configStr = type->config.toString();
6195                    printf("      config %s:\n", configStr.size() > 0
6196                            ? configStr.string() : "(default)");
6197                    size_t entryCount = dtohl(type->entryCount);
6198                    uint32_t entriesStart = dtohl(type->entriesStart);
6199                    if ((entriesStart&0x3) != 0) {
6200                        printf("      NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart);
6201                        continue;
6202                    }
6203                    uint32_t typeSize = dtohl(type->header.size);
6204                    if ((typeSize&0x3) != 0) {
6205                        printf("      NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize);
6206                        continue;
6207                    }
6208                    for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
6209
6210                        const uint8_t* const end = ((const uint8_t*)type)
6211                            + dtohl(type->header.size);
6212                        const uint32_t* const eindex = (const uint32_t*)
6213                            (((const uint8_t*)type) + dtohs(type->header.headerSize));
6214
6215                        uint32_t thisOffset = dtohl(eindex[entryIndex]);
6216                        if (thisOffset == ResTable_type::NO_ENTRY) {
6217                            continue;
6218                        }
6219
6220                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
6221                                    | (0x00ff0000 & ((typeIndex+1)<<16))
6222                                    | (0x0000ffff & (entryIndex));
6223                        pg->dynamicRefTable.lookupResourceId(&resID);
6224                        resource_name resName;
6225                        if (this->getResourceName(resID, true, &resName)) {
6226                            String8 type8;
6227                            String8 name8;
6228                            if (resName.type8 != NULL) {
6229                                type8 = String8(resName.type8, resName.typeLen);
6230                            } else {
6231                                type8 = String8(resName.type, resName.typeLen);
6232                            }
6233                            if (resName.name8 != NULL) {
6234                                name8 = String8(resName.name8, resName.nameLen);
6235                            } else {
6236                                name8 = String8(resName.name, resName.nameLen);
6237                            }
6238                            printf("        resource 0x%08x %s:%s/%s: ", resID,
6239                                    CHAR16_TO_CSTR(resName.package, resName.packageLen),
6240                                    type8.string(), name8.string());
6241                        } else {
6242                            printf("        INVALID RESOURCE 0x%08x: ", resID);
6243                        }
6244                        if ((thisOffset&0x3) != 0) {
6245                            printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset);
6246                            continue;
6247                        }
6248                        if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
6249                            printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n",
6250                                   entriesStart, thisOffset, typeSize);
6251                            continue;
6252                        }
6253
6254                        const ResTable_entry* ent = (const ResTable_entry*)
6255                            (((const uint8_t*)type) + entriesStart + thisOffset);
6256                        if (((entriesStart + thisOffset)&0x3) != 0) {
6257                            printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n",
6258                                 (entriesStart + thisOffset));
6259                            continue;
6260                        }
6261
6262                        uintptr_t esize = dtohs(ent->size);
6263                        if ((esize&0x3) != 0) {
6264                            printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize);
6265                            continue;
6266                        }
6267                        if ((thisOffset+esize) > typeSize) {
6268                            printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n",
6269                                   entriesStart, thisOffset, (void *)esize, typeSize);
6270                            continue;
6271                        }
6272
6273                        const Res_value* valuePtr = NULL;
6274                        const ResTable_map_entry* bagPtr = NULL;
6275                        Res_value value;
6276                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
6277                            printf("<bag>");
6278                            bagPtr = (const ResTable_map_entry*)ent;
6279                        } else {
6280                            valuePtr = (const Res_value*)
6281                                (((const uint8_t*)ent) + esize);
6282                            value.copyFrom_dtoh(*valuePtr);
6283                            printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
6284                                   (int)value.dataType, (int)value.data,
6285                                   (int)value.size, (int)value.res0);
6286                        }
6287
6288                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
6289                            printf(" (PUBLIC)");
6290                        }
6291                        printf("\n");
6292
6293                        if (inclValues) {
6294                            if (valuePtr != NULL) {
6295                                printf("          ");
6296                                print_value(pkg, value);
6297                            } else if (bagPtr != NULL) {
6298                                const int N = dtohl(bagPtr->count);
6299                                const uint8_t* baseMapPtr = (const uint8_t*)ent;
6300                                size_t mapOffset = esize;
6301                                const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6302                                const uint32_t parent = dtohl(bagPtr->parent.ident);
6303                                uint32_t resolvedParent = parent;
6304                                status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent);
6305                                if (err != NO_ERROR) {
6306                                    resolvedParent = 0;
6307                                }
6308                                printf("          Parent=0x%08x(Resolved=0x%08x), Count=%d\n",
6309                                        parent, resolvedParent, N);
6310                                for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
6311                                    printf("          #%i (Key=0x%08x): ",
6312                                        i, dtohl(mapPtr->name.ident));
6313                                    value.copyFrom_dtoh(mapPtr->value);
6314                                    print_value(pkg, value);
6315                                    const size_t size = dtohs(mapPtr->value.size);
6316                                    mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
6317                                    mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6318                                }
6319                            }
6320                        }
6321                    }
6322                }
6323            }
6324        }
6325    }
6326}
6327
6328}   // namespace android
6329