ResourceTypes.cpp revision d45c68dd24fe3dd510af5a9591b5e2f509b56772 
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
46namespace android {
47
48#ifdef HAVE_WINSOCK
49#undef  nhtol
50#undef  htonl
51
52#ifdef HAVE_LITTLE_ENDIAN
53#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
54#define htonl(x)    ntohl(x)
55#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
56#define htons(x)    ntohs(x)
57#else
58#define ntohl(x)    (x)
59#define htonl(x)    (x)
60#define ntohs(x)    (x)
61#define htons(x)    (x)
62#endif
63#endif
64
65#define IDMAP_MAGIC         0x706d6469
66// size measured in sizeof(uint32_t)
67#define IDMAP_HEADER_SIZE (ResTable::IDMAP_HEADER_SIZE_BYTES / sizeof(uint32_t))
68
69static void printToLogFunc(void* cookie, const char* txt)
70{
71    ALOGV("%s", txt);
72}
73
74// Standard C isspace() is only required to look at the low byte of its input, so
75// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
76// any high-byte UTF-16 code point is not whitespace.
77inline int isspace16(char16_t c) {
78    return (c < 0x0080 && isspace(c));
79}
80
81// range checked; guaranteed to NUL-terminate within the stated number of available slots
82// NOTE: if this truncates the dst string due to running out of space, no attempt is
83// made to avoid splitting surrogate pairs.
84static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
85{
86    uint16_t* last = dst + avail - 1;
87    while (*src && (dst < last)) {
88        char16_t s = dtohs(*src);
89        *dst++ = s;
90        src++;
91    }
92    *dst = 0;
93}
94
95static status_t validate_chunk(const ResChunk_header* chunk,
96                               size_t minSize,
97                               const uint8_t* dataEnd,
98                               const char* name)
99{
100    const uint16_t headerSize = dtohs(chunk->headerSize);
101    const uint32_t size = dtohl(chunk->size);
102
103    if (headerSize >= minSize) {
104        if (headerSize <= size) {
105            if (((headerSize|size)&0x3) == 0) {
106                if ((ssize_t)size <= (dataEnd-((const uint8_t*)chunk))) {
107                    return NO_ERROR;
108                }
109                ALOGW("%s data size %p extends beyond resource end %p.",
110                     name, (void*)size,
111                     (void*)(dataEnd-((const uint8_t*)chunk)));
112                return BAD_TYPE;
113            }
114            ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
115                 name, (int)size, (int)headerSize);
116            return BAD_TYPE;
117        }
118        ALOGW("%s size %p is smaller than header size %p.",
119             name, (void*)size, (void*)(int)headerSize);
120        return BAD_TYPE;
121    }
122    ALOGW("%s header size %p is too small.",
123         name, (void*)(int)headerSize);
124    return BAD_TYPE;
125}
126
127inline void Res_value::copyFrom_dtoh(const Res_value& src)
128{
129    size = dtohs(src.size);
130    res0 = src.res0;
131    dataType = src.dataType;
132    data = dtohl(src.data);
133}
134
135void Res_png_9patch::deviceToFile()
136{
137    for (int i = 0; i < numXDivs; i++) {
138        xDivs[i] = htonl(xDivs[i]);
139    }
140    for (int i = 0; i < numYDivs; i++) {
141        yDivs[i] = htonl(yDivs[i]);
142    }
143    paddingLeft = htonl(paddingLeft);
144    paddingRight = htonl(paddingRight);
145    paddingTop = htonl(paddingTop);
146    paddingBottom = htonl(paddingBottom);
147    for (int i=0; i<numColors; i++) {
148        colors[i] = htonl(colors[i]);
149    }
150}
151
152void Res_png_9patch::fileToDevice()
153{
154    for (int i = 0; i < numXDivs; i++) {
155        xDivs[i] = ntohl(xDivs[i]);
156    }
157    for (int i = 0; i < numYDivs; i++) {
158        yDivs[i] = ntohl(yDivs[i]);
159    }
160    paddingLeft = ntohl(paddingLeft);
161    paddingRight = ntohl(paddingRight);
162    paddingTop = ntohl(paddingTop);
163    paddingBottom = ntohl(paddingBottom);
164    for (int i=0; i<numColors; i++) {
165        colors[i] = ntohl(colors[i]);
166    }
167}
168
169size_t Res_png_9patch::serializedSize()
170{
171    // The size of this struct is 32 bytes on the 32-bit target system
172    // 4 * int8_t
173    // 4 * int32_t
174    // 3 * pointer
175    return 32
176            + numXDivs * sizeof(int32_t)
177            + numYDivs * sizeof(int32_t)
178            + numColors * sizeof(uint32_t);
179}
180
181void* Res_png_9patch::serialize()
182{
183    // Use calloc since we're going to leave a few holes in the data
184    // and want this to run cleanly under valgrind
185    void* newData = calloc(1, serializedSize());
186    serialize(newData);
187    return newData;
188}
189
190void Res_png_9patch::serialize(void * outData)
191{
192    char* data = (char*) outData;
193    memmove(data, &wasDeserialized, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
194    memmove(data + 12, &paddingLeft, 16);   // copy paddingXXXX
195    data += 32;
196
197    memmove(data, this->xDivs, numXDivs * sizeof(int32_t));
198    data +=  numXDivs * sizeof(int32_t);
199    memmove(data, this->yDivs, numYDivs * sizeof(int32_t));
200    data +=  numYDivs * sizeof(int32_t);
201    memmove(data, this->colors, numColors * sizeof(uint32_t));
202}
203
204static void deserializeInternal(const void* inData, Res_png_9patch* outData) {
205    char* patch = (char*) inData;
206    if (inData != outData) {
207        memmove(&outData->wasDeserialized, patch, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
208        memmove(&outData->paddingLeft, patch + 12, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
209    }
210    outData->wasDeserialized = true;
211    char* data = (char*)outData;
212    data +=  sizeof(Res_png_9patch);
213    outData->xDivs = (int32_t*) data;
214    data +=  outData->numXDivs * sizeof(int32_t);
215    outData->yDivs = (int32_t*) data;
216    data +=  outData->numYDivs * sizeof(int32_t);
217    outData->colors = (uint32_t*) data;
218}
219
220static bool assertIdmapHeader(const uint32_t* map, size_t sizeBytes)
221{
222    if (sizeBytes < ResTable::IDMAP_HEADER_SIZE_BYTES) {
223        ALOGW("idmap assertion failed: size=%d bytes\n", (int)sizeBytes);
224        return false;
225    }
226    if (*map != htodl(IDMAP_MAGIC)) { // htodl: map data expected to be in correct endianess
227        ALOGW("idmap assertion failed: invalid magic found (is 0x%08x, expected 0x%08x)\n",
228             *map, htodl(IDMAP_MAGIC));
229        return false;
230    }
231    return true;
232}
233
234static status_t idmapLookup(const uint32_t* map, size_t sizeBytes, uint32_t key, uint32_t* outValue)
235{
236    // see README for details on the format of map
237    if (!assertIdmapHeader(map, sizeBytes)) {
238        return UNKNOWN_ERROR;
239    }
240    map = map + IDMAP_HEADER_SIZE; // skip ahead to data segment
241    // size of data block, in uint32_t
242    const size_t size = (sizeBytes - ResTable::IDMAP_HEADER_SIZE_BYTES) / sizeof(uint32_t);
243    const uint32_t type = Res_GETTYPE(key) + 1; // add one, idmap stores "public" type id
244    const uint32_t entry = Res_GETENTRY(key);
245    const uint32_t typeCount = *map;
246
247    if (type > typeCount) {
248        ALOGW("Resource ID map: type=%d exceeds number of types=%d\n", type, typeCount);
249        return UNKNOWN_ERROR;
250    }
251    if (typeCount > size) {
252        ALOGW("Resource ID map: number of types=%d exceeds size of map=%d\n", typeCount, (int)size);
253        return UNKNOWN_ERROR;
254    }
255    const uint32_t typeOffset = map[type];
256    if (typeOffset == 0) {
257        *outValue = 0;
258        return NO_ERROR;
259    }
260    if (typeOffset + 1 > size) {
261        ALOGW("Resource ID map: type offset=%d exceeds reasonable value, size of map=%d\n",
262             typeOffset, (int)size);
263        return UNKNOWN_ERROR;
264    }
265    const uint32_t entryCount = map[typeOffset];
266    const uint32_t entryOffset = map[typeOffset + 1];
267    if (entryCount == 0 || entry < entryOffset || entry - entryOffset > entryCount - 1) {
268        *outValue = 0;
269        return NO_ERROR;
270    }
271    const uint32_t index = typeOffset + 2 + entry - entryOffset;
272    if (index > size) {
273        ALOGW("Resource ID map: entry index=%d exceeds size of map=%d\n", index, (int)size);
274        *outValue = 0;
275        return NO_ERROR;
276    }
277    *outValue = map[index];
278
279    return NO_ERROR;
280}
281
282static status_t getIdmapPackageId(const uint32_t* map, size_t mapSize, uint32_t *outId)
283{
284    if (!assertIdmapHeader(map, mapSize)) {
285        return UNKNOWN_ERROR;
286    }
287    const uint32_t* p = map + IDMAP_HEADER_SIZE + 1;
288    while (*p == 0) {
289        ++p;
290    }
291    *outId = (map[*p + IDMAP_HEADER_SIZE + 2] >> 24) & 0x000000ff;
292    return NO_ERROR;
293}
294
295Res_png_9patch* Res_png_9patch::deserialize(const void* inData)
296{
297    if (sizeof(void*) != sizeof(int32_t)) {
298        ALOGE("Cannot deserialize on non 32-bit system\n");
299        return NULL;
300    }
301    deserializeInternal(inData, (Res_png_9patch*) inData);
302    return (Res_png_9patch*) inData;
303}
304
305// --------------------------------------------------------------------
306// --------------------------------------------------------------------
307// --------------------------------------------------------------------
308
309ResStringPool::ResStringPool()
310    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
311{
312}
313
314ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
315    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
316{
317    setTo(data, size, copyData);
318}
319
320ResStringPool::~ResStringPool()
321{
322    uninit();
323}
324
325status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
326{
327    if (!data || !size) {
328        return (mError=BAD_TYPE);
329    }
330
331    uninit();
332
333    const bool notDeviceEndian = htods(0xf0) != 0xf0;
334
335    if (copyData || notDeviceEndian) {
336        mOwnedData = malloc(size);
337        if (mOwnedData == NULL) {
338            return (mError=NO_MEMORY);
339        }
340        memcpy(mOwnedData, data, size);
341        data = mOwnedData;
342    }
343
344    mHeader = (const ResStringPool_header*)data;
345
346    if (notDeviceEndian) {
347        ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
348        h->header.headerSize = dtohs(mHeader->header.headerSize);
349        h->header.type = dtohs(mHeader->header.type);
350        h->header.size = dtohl(mHeader->header.size);
351        h->stringCount = dtohl(mHeader->stringCount);
352        h->styleCount = dtohl(mHeader->styleCount);
353        h->flags = dtohl(mHeader->flags);
354        h->stringsStart = dtohl(mHeader->stringsStart);
355        h->stylesStart = dtohl(mHeader->stylesStart);
356    }
357
358    if (mHeader->header.headerSize > mHeader->header.size
359            || mHeader->header.size > size) {
360        ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
361                (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
362        return (mError=BAD_TYPE);
363    }
364    mSize = mHeader->header.size;
365    mEntries = (const uint32_t*)
366        (((const uint8_t*)data)+mHeader->header.headerSize);
367
368    if (mHeader->stringCount > 0) {
369        if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount)  // uint32 overflow?
370            || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
371                > size) {
372            ALOGW("Bad string block: entry of %d items extends past data size %d\n",
373                    (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
374                    (int)size);
375            return (mError=BAD_TYPE);
376        }
377
378        size_t charSize;
379        if (mHeader->flags&ResStringPool_header::UTF8_FLAG) {
380            charSize = sizeof(uint8_t);
381        } else {
382            charSize = sizeof(char16_t);
383        }
384
385        mStrings = (const void*)
386            (((const uint8_t*)data)+mHeader->stringsStart);
387        if (mHeader->stringsStart >= (mHeader->header.size-sizeof(uint16_t))) {
388            ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
389                    (int)mHeader->stringsStart, (int)mHeader->header.size);
390            return (mError=BAD_TYPE);
391        }
392        if (mHeader->styleCount == 0) {
393            mStringPoolSize =
394                (mHeader->header.size-mHeader->stringsStart)/charSize;
395        } else {
396            // check invariant: styles starts before end of data
397            if (mHeader->stylesStart >= (mHeader->header.size-sizeof(uint16_t))) {
398                ALOGW("Bad style block: style block starts at %d past data size of %d\n",
399                    (int)mHeader->stylesStart, (int)mHeader->header.size);
400                return (mError=BAD_TYPE);
401            }
402            // check invariant: styles follow the strings
403            if (mHeader->stylesStart <= mHeader->stringsStart) {
404                ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
405                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
406                return (mError=BAD_TYPE);
407            }
408            mStringPoolSize =
409                (mHeader->stylesStart-mHeader->stringsStart)/charSize;
410        }
411
412        // check invariant: stringCount > 0 requires a string pool to exist
413        if (mStringPoolSize == 0) {
414            ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
415            return (mError=BAD_TYPE);
416        }
417
418        if (notDeviceEndian) {
419            size_t i;
420            uint32_t* e = const_cast<uint32_t*>(mEntries);
421            for (i=0; i<mHeader->stringCount; i++) {
422                e[i] = dtohl(mEntries[i]);
423            }
424            if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
425                const char16_t* strings = (const char16_t*)mStrings;
426                char16_t* s = const_cast<char16_t*>(strings);
427                for (i=0; i<mStringPoolSize; i++) {
428                    s[i] = dtohs(strings[i]);
429                }
430            }
431        }
432
433        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
434                ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
435                (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
436                ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
437            ALOGW("Bad string block: last string is not 0-terminated\n");
438            return (mError=BAD_TYPE);
439        }
440    } else {
441        mStrings = NULL;
442        mStringPoolSize = 0;
443    }
444
445    if (mHeader->styleCount > 0) {
446        mEntryStyles = mEntries + mHeader->stringCount;
447        // invariant: integer overflow in calculating mEntryStyles
448        if (mEntryStyles < mEntries) {
449            ALOGW("Bad string block: integer overflow finding styles\n");
450            return (mError=BAD_TYPE);
451        }
452
453        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
454            ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
455                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
456                    (int)size);
457            return (mError=BAD_TYPE);
458        }
459        mStyles = (const uint32_t*)
460            (((const uint8_t*)data)+mHeader->stylesStart);
461        if (mHeader->stylesStart >= mHeader->header.size) {
462            ALOGW("Bad string block: style pool starts %d, after total size %d\n",
463                    (int)mHeader->stylesStart, (int)mHeader->header.size);
464            return (mError=BAD_TYPE);
465        }
466        mStylePoolSize =
467            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
468
469        if (notDeviceEndian) {
470            size_t i;
471            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
472            for (i=0; i<mHeader->styleCount; i++) {
473                e[i] = dtohl(mEntryStyles[i]);
474            }
475            uint32_t* s = const_cast<uint32_t*>(mStyles);
476            for (i=0; i<mStylePoolSize; i++) {
477                s[i] = dtohl(mStyles[i]);
478            }
479        }
480
481        const ResStringPool_span endSpan = {
482            { htodl(ResStringPool_span::END) },
483            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
484        };
485        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
486                   &endSpan, sizeof(endSpan)) != 0) {
487            ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
488            return (mError=BAD_TYPE);
489        }
490    } else {
491        mEntryStyles = NULL;
492        mStyles = NULL;
493        mStylePoolSize = 0;
494    }
495
496    return (mError=NO_ERROR);
497}
498
499status_t ResStringPool::getError() const
500{
501    return mError;
502}
503
504void ResStringPool::uninit()
505{
506    mError = NO_INIT;
507    if (mHeader != NULL && mCache != NULL) {
508        for (size_t x = 0; x < mHeader->stringCount; x++) {
509            if (mCache[x] != NULL) {
510                free(mCache[x]);
511                mCache[x] = NULL;
512            }
513        }
514        free(mCache);
515        mCache = NULL;
516    }
517    if (mOwnedData) {
518        free(mOwnedData);
519        mOwnedData = NULL;
520    }
521}
522
523/**
524 * Strings in UTF-16 format have length indicated by a length encoded in the
525 * stored data. It is either 1 or 2 characters of length data. This allows a
526 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
527 * much data in a string, you're abusing them.
528 *
529 * If the high bit is set, then there are two characters or 4 bytes of length
530 * data encoded. In that case, drop the high bit of the first character and
531 * add it together with the next character.
532 */
533static inline size_t
534decodeLength(const char16_t** str)
535{
536    size_t len = **str;
537    if ((len & 0x8000) != 0) {
538        (*str)++;
539        len = ((len & 0x7FFF) << 16) | **str;
540    }
541    (*str)++;
542    return len;
543}
544
545/**
546 * Strings in UTF-8 format have length indicated by a length encoded in the
547 * stored data. It is either 1 or 2 characters of length data. This allows a
548 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
549 * text in another way if you're using that much data in a single string.
550 *
551 * If the high bit is set, then there are two characters or 2 bytes of length
552 * data encoded. In that case, drop the high bit of the first character and
553 * add it together with the next character.
554 */
555static inline size_t
556decodeLength(const uint8_t** str)
557{
558    size_t len = **str;
559    if ((len & 0x80) != 0) {
560        (*str)++;
561        len = ((len & 0x7F) << 8) | **str;
562    }
563    (*str)++;
564    return len;
565}
566
567const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
568{
569    if (mError == NO_ERROR && idx < mHeader->stringCount) {
570        const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
571        const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
572        if (off < (mStringPoolSize-1)) {
573            if (!isUTF8) {
574                const char16_t* strings = (char16_t*)mStrings;
575                const char16_t* str = strings+off;
576
577                *u16len = decodeLength(&str);
578                if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
579                    return str;
580                } else {
581                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
582                            (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
583                }
584            } else {
585                const uint8_t* strings = (uint8_t*)mStrings;
586                const uint8_t* u8str = strings+off;
587
588                *u16len = decodeLength(&u8str);
589                size_t u8len = decodeLength(&u8str);
590
591                // encLen must be less than 0x7FFF due to encoding.
592                if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
593                    AutoMutex lock(mDecodeLock);
594
595                    if (mCache == NULL) {
596#ifndef HAVE_ANDROID_OS
597                        STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
598                                mHeader->stringCount*sizeof(char16_t**)));
599#else
600                        // We do not want to be in this case when actually running Android.
601                        ALOGW("CREATING STRING CACHE OF %d bytes",
602                                mHeader->stringCount*sizeof(char16_t**));
603#endif
604                        mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
605                        if (mCache == NULL) {
606                            ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
607                                    (int)(mHeader->stringCount*sizeof(char16_t**)));
608                            return NULL;
609                        }
610                    }
611
612                    if (mCache[idx] != NULL) {
613                        return mCache[idx];
614                    }
615
616                    ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
617                    if (actualLen < 0 || (size_t)actualLen != *u16len) {
618                        ALOGW("Bad string block: string #%lld decoded length is not correct "
619                                "%lld vs %llu\n",
620                                (long long)idx, (long long)actualLen, (long long)*u16len);
621                        return NULL;
622                    }
623
624                    char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
625                    if (!u16str) {
626                        ALOGW("No memory when trying to allocate decode cache for string #%d\n",
627                                (int)idx);
628                        return NULL;
629                    }
630
631                    STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
632                    utf8_to_utf16(u8str, u8len, u16str);
633                    mCache[idx] = u16str;
634                    return u16str;
635                } else {
636                    ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
637                            (long long)idx, (long long)(u8str+u8len-strings),
638                            (long long)mStringPoolSize);
639                }
640            }
641        } else {
642            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
643                    (int)idx, (int)(off*sizeof(uint16_t)),
644                    (int)(mStringPoolSize*sizeof(uint16_t)));
645        }
646    }
647    return NULL;
648}
649
650const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
651{
652    if (mError == NO_ERROR && idx < mHeader->stringCount) {
653        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
654            return NULL;
655        }
656        const uint32_t off = mEntries[idx]/sizeof(char);
657        if (off < (mStringPoolSize-1)) {
658            const uint8_t* strings = (uint8_t*)mStrings;
659            const uint8_t* str = strings+off;
660            *outLen = decodeLength(&str);
661            size_t encLen = decodeLength(&str);
662            if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
663                return (const char*)str;
664            } else {
665                ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
666                        (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
667            }
668        } else {
669            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
670                    (int)idx, (int)(off*sizeof(uint16_t)),
671                    (int)(mStringPoolSize*sizeof(uint16_t)));
672        }
673    }
674    return NULL;
675}
676
677const String8 ResStringPool::string8ObjectAt(size_t idx) const
678{
679    size_t len;
680    const char *str = (const char*)string8At(idx, &len);
681    if (str != NULL) {
682        return String8(str);
683    }
684    return String8(stringAt(idx, &len));
685}
686
687const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
688{
689    return styleAt(ref.index);
690}
691
692const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
693{
694    if (mError == NO_ERROR && idx < mHeader->styleCount) {
695        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
696        if (off < mStylePoolSize) {
697            return (const ResStringPool_span*)(mStyles+off);
698        } else {
699            ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
700                    (int)idx, (int)(off*sizeof(uint32_t)),
701                    (int)(mStylePoolSize*sizeof(uint32_t)));
702        }
703    }
704    return NULL;
705}
706
707ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
708{
709    if (mError != NO_ERROR) {
710        return mError;
711    }
712
713    size_t len;
714
715    if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
716        STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
717
718        // The string pool contains UTF 8 strings; we don't want to cause
719        // temporary UTF-16 strings to be created as we search.
720        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
721            // Do a binary search for the string...  this is a little tricky,
722            // because the strings are sorted with strzcmp16().  So to match
723            // the ordering, we need to convert strings in the pool to UTF-16.
724            // But we don't want to hit the cache, so instead we will have a
725            // local temporary allocation for the conversions.
726            char16_t* convBuffer = (char16_t*)malloc(strLen+4);
727            ssize_t l = 0;
728            ssize_t h = mHeader->stringCount-1;
729
730            ssize_t mid;
731            while (l <= h) {
732                mid = l + (h - l)/2;
733                const uint8_t* s = (const uint8_t*)string8At(mid, &len);
734                int c;
735                if (s != NULL) {
736                    char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
737                    *end = 0;
738                    c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
739                } else {
740                    c = -1;
741                }
742                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
743                             (const char*)s, c, (int)l, (int)mid, (int)h));
744                if (c == 0) {
745                    STRING_POOL_NOISY(ALOGI("MATCH!"));
746                    free(convBuffer);
747                    return mid;
748                } else if (c < 0) {
749                    l = mid + 1;
750                } else {
751                    h = mid - 1;
752                }
753            }
754            free(convBuffer);
755        } else {
756            // It is unusual to get the ID from an unsorted string block...
757            // most often this happens because we want to get IDs for style
758            // span tags; since those always appear at the end of the string
759            // block, start searching at the back.
760            String8 str8(str, strLen);
761            const size_t str8Len = str8.size();
762            for (int i=mHeader->stringCount-1; i>=0; i--) {
763                const char* s = string8At(i, &len);
764                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
765                             String8(s).string(),
766                             i));
767                if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
768                    STRING_POOL_NOISY(ALOGI("MATCH!"));
769                    return i;
770                }
771            }
772        }
773
774    } else {
775        STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
776
777        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
778            // Do a binary search for the string...
779            ssize_t l = 0;
780            ssize_t h = mHeader->stringCount-1;
781
782            ssize_t mid;
783            while (l <= h) {
784                mid = l + (h - l)/2;
785                const char16_t* s = stringAt(mid, &len);
786                int c = s ? strzcmp16(s, len, str, strLen) : -1;
787                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
788                             String8(s).string(),
789                             c, (int)l, (int)mid, (int)h));
790                if (c == 0) {
791                    STRING_POOL_NOISY(ALOGI("MATCH!"));
792                    return mid;
793                } else if (c < 0) {
794                    l = mid + 1;
795                } else {
796                    h = mid - 1;
797                }
798            }
799        } else {
800            // It is unusual to get the ID from an unsorted string block...
801            // most often this happens because we want to get IDs for style
802            // span tags; since those always appear at the end of the string
803            // block, start searching at the back.
804            for (int i=mHeader->stringCount-1; i>=0; i--) {
805                const char16_t* s = stringAt(i, &len);
806                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
807                             String8(s).string(),
808                             i));
809                if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
810                    STRING_POOL_NOISY(ALOGI("MATCH!"));
811                    return i;
812                }
813            }
814        }
815    }
816
817    return NAME_NOT_FOUND;
818}
819
820size_t ResStringPool::size() const
821{
822    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
823}
824
825size_t ResStringPool::styleCount() const
826{
827    return (mError == NO_ERROR) ? mHeader->styleCount : 0;
828}
829
830size_t ResStringPool::bytes() const
831{
832    return (mError == NO_ERROR) ? mHeader->header.size : 0;
833}
834
835bool ResStringPool::isSorted() const
836{
837    return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
838}
839
840bool ResStringPool::isUTF8() const
841{
842    return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
843}
844
845// --------------------------------------------------------------------
846// --------------------------------------------------------------------
847// --------------------------------------------------------------------
848
849ResXMLParser::ResXMLParser(const ResXMLTree& tree)
850    : mTree(tree), mEventCode(BAD_DOCUMENT)
851{
852}
853
854void ResXMLParser::restart()
855{
856    mCurNode = NULL;
857    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
858}
859const ResStringPool& ResXMLParser::getStrings() const
860{
861    return mTree.mStrings;
862}
863
864ResXMLParser::event_code_t ResXMLParser::getEventType() const
865{
866    return mEventCode;
867}
868
869ResXMLParser::event_code_t ResXMLParser::next()
870{
871    if (mEventCode == START_DOCUMENT) {
872        mCurNode = mTree.mRootNode;
873        mCurExt = mTree.mRootExt;
874        return (mEventCode=mTree.mRootCode);
875    } else if (mEventCode >= FIRST_CHUNK_CODE) {
876        return nextNode();
877    }
878    return mEventCode;
879}
880
881int32_t ResXMLParser::getCommentID() const
882{
883    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
884}
885
886const uint16_t* ResXMLParser::getComment(size_t* outLen) const
887{
888    int32_t id = getCommentID();
889    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
890}
891
892uint32_t ResXMLParser::getLineNumber() const
893{
894    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
895}
896
897int32_t ResXMLParser::getTextID() const
898{
899    if (mEventCode == TEXT) {
900        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
901    }
902    return -1;
903}
904
905const uint16_t* ResXMLParser::getText(size_t* outLen) const
906{
907    int32_t id = getTextID();
908    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
909}
910
911ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
912{
913    if (mEventCode == TEXT) {
914        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
915        return sizeof(Res_value);
916    }
917    return BAD_TYPE;
918}
919
920int32_t ResXMLParser::getNamespacePrefixID() const
921{
922    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
923        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
924    }
925    return -1;
926}
927
928const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
929{
930    int32_t id = getNamespacePrefixID();
931    //printf("prefix=%d  event=%p\n", id, mEventCode);
932    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
933}
934
935int32_t ResXMLParser::getNamespaceUriID() const
936{
937    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
938        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
939    }
940    return -1;
941}
942
943const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
944{
945    int32_t id = getNamespaceUriID();
946    //printf("uri=%d  event=%p\n", id, mEventCode);
947    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
948}
949
950int32_t ResXMLParser::getElementNamespaceID() const
951{
952    if (mEventCode == START_TAG) {
953        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
954    }
955    if (mEventCode == END_TAG) {
956        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
957    }
958    return -1;
959}
960
961const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
962{
963    int32_t id = getElementNamespaceID();
964    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
965}
966
967int32_t ResXMLParser::getElementNameID() const
968{
969    if (mEventCode == START_TAG) {
970        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
971    }
972    if (mEventCode == END_TAG) {
973        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
974    }
975    return -1;
976}
977
978const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
979{
980    int32_t id = getElementNameID();
981    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
982}
983
984size_t ResXMLParser::getAttributeCount() const
985{
986    if (mEventCode == START_TAG) {
987        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
988    }
989    return 0;
990}
991
992int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
993{
994    if (mEventCode == START_TAG) {
995        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
996        if (idx < dtohs(tag->attributeCount)) {
997            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
998                (((const uint8_t*)tag)
999                 + dtohs(tag->attributeStart)
1000                 + (dtohs(tag->attributeSize)*idx));
1001            return dtohl(attr->ns.index);
1002        }
1003    }
1004    return -2;
1005}
1006
1007const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1008{
1009    int32_t id = getAttributeNamespaceID(idx);
1010    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1011    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1012    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1013}
1014
1015const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const
1016{
1017    int32_t id = getAttributeNamespaceID(idx);
1018    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1019    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1020    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1021}
1022
1023int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1024{
1025    if (mEventCode == START_TAG) {
1026        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1027        if (idx < dtohs(tag->attributeCount)) {
1028            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1029                (((const uint8_t*)tag)
1030                 + dtohs(tag->attributeStart)
1031                 + (dtohs(tag->attributeSize)*idx));
1032            return dtohl(attr->name.index);
1033        }
1034    }
1035    return -1;
1036}
1037
1038const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1039{
1040    int32_t id = getAttributeNameID(idx);
1041    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1042    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1043    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1044}
1045
1046const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const
1047{
1048    int32_t id = getAttributeNameID(idx);
1049    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1050    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1051    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1052}
1053
1054uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1055{
1056    int32_t id = getAttributeNameID(idx);
1057    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1058        return dtohl(mTree.mResIds[id]);
1059    }
1060    return 0;
1061}
1062
1063int32_t ResXMLParser::getAttributeValueStringID(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->rawValue.index);
1073        }
1074    }
1075    return -1;
1076}
1077
1078const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1079{
1080    int32_t id = getAttributeValueStringID(idx);
1081    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1082    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1083}
1084
1085int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1086{
1087    if (mEventCode == START_TAG) {
1088        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1089        if (idx < dtohs(tag->attributeCount)) {
1090            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1091                (((const uint8_t*)tag)
1092                 + dtohs(tag->attributeStart)
1093                 + (dtohs(tag->attributeSize)*idx));
1094            return attr->typedValue.dataType;
1095        }
1096    }
1097    return Res_value::TYPE_NULL;
1098}
1099
1100int32_t ResXMLParser::getAttributeData(size_t idx) const
1101{
1102    if (mEventCode == START_TAG) {
1103        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1104        if (idx < dtohs(tag->attributeCount)) {
1105            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1106                (((const uint8_t*)tag)
1107                 + dtohs(tag->attributeStart)
1108                 + (dtohs(tag->attributeSize)*idx));
1109            return dtohl(attr->typedValue.data);
1110        }
1111    }
1112    return 0;
1113}
1114
1115ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1116{
1117    if (mEventCode == START_TAG) {
1118        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1119        if (idx < dtohs(tag->attributeCount)) {
1120            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1121                (((const uint8_t*)tag)
1122                 + dtohs(tag->attributeStart)
1123                 + (dtohs(tag->attributeSize)*idx));
1124            outValue->copyFrom_dtoh(attr->typedValue);
1125            return sizeof(Res_value);
1126        }
1127    }
1128    return BAD_TYPE;
1129}
1130
1131ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1132{
1133    String16 nsStr(ns != NULL ? ns : "");
1134    String16 attrStr(attr);
1135    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1136                            attrStr.string(), attrStr.size());
1137}
1138
1139ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1140                                       const char16_t* attr, size_t attrLen) const
1141{
1142    if (mEventCode == START_TAG) {
1143        if (attr == NULL) {
1144            return NAME_NOT_FOUND;
1145        }
1146        const size_t N = getAttributeCount();
1147        if (mTree.mStrings.isUTF8()) {
1148            String8 ns8, attr8;
1149            if (ns != NULL) {
1150                ns8 = String8(ns, nsLen);
1151            }
1152            attr8 = String8(attr, attrLen);
1153            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1154                    attr8.string(), attrLen));
1155            for (size_t i=0; i<N; i++) {
1156                size_t curNsLen = 0, curAttrLen = 0;
1157                const char* curNs = getAttributeNamespace8(i, &curNsLen);
1158                const char* curAttr = getAttributeName8(i, &curAttrLen);
1159                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1160                        curAttr, curAttrLen));
1161                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1162                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1163                    if (ns == NULL) {
1164                        if (curNs == NULL) {
1165                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1166                            return i;
1167                        }
1168                    } else if (curNs != NULL) {
1169                        //printf(" --> ns=%s, curNs=%s\n",
1170                        //       String8(ns).string(), String8(curNs).string());
1171                        if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1172                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1173                            return i;
1174                        }
1175                    }
1176                }
1177            }
1178        } else {
1179            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1180                    String8(ns, nsLen).string(), nsLen,
1181                    String8(attr, attrLen).string(), attrLen));
1182            for (size_t i=0; i<N; i++) {
1183                size_t curNsLen = 0, curAttrLen = 0;
1184                const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1185                const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1186                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)",
1187                        String8(curNs, curNsLen).string(), curNsLen,
1188                        String8(curAttr, curAttrLen).string(), curAttrLen));
1189                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1190                        && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1191                    if (ns == NULL) {
1192                        if (curNs == NULL) {
1193                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1194                            return i;
1195                        }
1196                    } else if (curNs != NULL) {
1197                        //printf(" --> ns=%s, curNs=%s\n",
1198                        //       String8(ns).string(), String8(curNs).string());
1199                        if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1200                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1201                            return i;
1202                        }
1203                    }
1204                }
1205            }
1206        }
1207    }
1208
1209    return NAME_NOT_FOUND;
1210}
1211
1212ssize_t ResXMLParser::indexOfID() const
1213{
1214    if (mEventCode == START_TAG) {
1215        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1216        if (idx > 0) return (idx-1);
1217    }
1218    return NAME_NOT_FOUND;
1219}
1220
1221ssize_t ResXMLParser::indexOfClass() const
1222{
1223    if (mEventCode == START_TAG) {
1224        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1225        if (idx > 0) return (idx-1);
1226    }
1227    return NAME_NOT_FOUND;
1228}
1229
1230ssize_t ResXMLParser::indexOfStyle() const
1231{
1232    if (mEventCode == START_TAG) {
1233        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1234        if (idx > 0) return (idx-1);
1235    }
1236    return NAME_NOT_FOUND;
1237}
1238
1239ResXMLParser::event_code_t ResXMLParser::nextNode()
1240{
1241    if (mEventCode < 0) {
1242        return mEventCode;
1243    }
1244
1245    do {
1246        const ResXMLTree_node* next = (const ResXMLTree_node*)
1247            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1248        //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1249
1250        if (((const uint8_t*)next) >= mTree.mDataEnd) {
1251            mCurNode = NULL;
1252            return (mEventCode=END_DOCUMENT);
1253        }
1254
1255        if (mTree.validateNode(next) != NO_ERROR) {
1256            mCurNode = NULL;
1257            return (mEventCode=BAD_DOCUMENT);
1258        }
1259
1260        mCurNode = next;
1261        const uint16_t headerSize = dtohs(next->header.headerSize);
1262        const uint32_t totalSize = dtohl(next->header.size);
1263        mCurExt = ((const uint8_t*)next) + headerSize;
1264        size_t minExtSize = 0;
1265        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1266        switch ((mEventCode=eventCode)) {
1267            case RES_XML_START_NAMESPACE_TYPE:
1268            case RES_XML_END_NAMESPACE_TYPE:
1269                minExtSize = sizeof(ResXMLTree_namespaceExt);
1270                break;
1271            case RES_XML_START_ELEMENT_TYPE:
1272                minExtSize = sizeof(ResXMLTree_attrExt);
1273                break;
1274            case RES_XML_END_ELEMENT_TYPE:
1275                minExtSize = sizeof(ResXMLTree_endElementExt);
1276                break;
1277            case RES_XML_CDATA_TYPE:
1278                minExtSize = sizeof(ResXMLTree_cdataExt);
1279                break;
1280            default:
1281                ALOGW("Unknown XML block: header type %d in node at %d\n",
1282                     (int)dtohs(next->header.type),
1283                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1284                continue;
1285        }
1286
1287        if ((totalSize-headerSize) < minExtSize) {
1288            ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1289                 (int)dtohs(next->header.type),
1290                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1291                 (int)(totalSize-headerSize), (int)minExtSize);
1292            return (mEventCode=BAD_DOCUMENT);
1293        }
1294
1295        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1296        //       mCurNode, mCurExt, headerSize, minExtSize);
1297
1298        return eventCode;
1299    } while (true);
1300}
1301
1302void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1303{
1304    pos->eventCode = mEventCode;
1305    pos->curNode = mCurNode;
1306    pos->curExt = mCurExt;
1307}
1308
1309void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1310{
1311    mEventCode = pos.eventCode;
1312    mCurNode = pos.curNode;
1313    mCurExt = pos.curExt;
1314}
1315
1316
1317// --------------------------------------------------------------------
1318
1319static volatile int32_t gCount = 0;
1320
1321ResXMLTree::ResXMLTree()
1322    : ResXMLParser(*this)
1323    , mError(NO_INIT), mOwnedData(NULL)
1324{
1325    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1326    restart();
1327}
1328
1329ResXMLTree::ResXMLTree(const void* data, size_t size, bool copyData)
1330    : ResXMLParser(*this)
1331    , mError(NO_INIT), mOwnedData(NULL)
1332{
1333    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1334    setTo(data, size, copyData);
1335}
1336
1337ResXMLTree::~ResXMLTree()
1338{
1339    //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1340    uninit();
1341}
1342
1343status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1344{
1345    uninit();
1346    mEventCode = START_DOCUMENT;
1347
1348    if (!data || !size) {
1349        return (mError=BAD_TYPE);
1350    }
1351
1352    if (copyData) {
1353        mOwnedData = malloc(size);
1354        if (mOwnedData == NULL) {
1355            return (mError=NO_MEMORY);
1356        }
1357        memcpy(mOwnedData, data, size);
1358        data = mOwnedData;
1359    }
1360
1361    mHeader = (const ResXMLTree_header*)data;
1362    mSize = dtohl(mHeader->header.size);
1363    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1364        ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1365             (int)dtohs(mHeader->header.headerSize),
1366             (int)dtohl(mHeader->header.size), (int)size);
1367        mError = BAD_TYPE;
1368        restart();
1369        return mError;
1370    }
1371    mDataEnd = ((const uint8_t*)mHeader) + mSize;
1372
1373    mStrings.uninit();
1374    mRootNode = NULL;
1375    mResIds = NULL;
1376    mNumResIds = 0;
1377
1378    // First look for a couple interesting chunks: the string block
1379    // and first XML node.
1380    const ResChunk_header* chunk =
1381        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1382    const ResChunk_header* lastChunk = chunk;
1383    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1384           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1385        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1386        if (err != NO_ERROR) {
1387            mError = err;
1388            goto done;
1389        }
1390        const uint16_t type = dtohs(chunk->type);
1391        const size_t size = dtohl(chunk->size);
1392        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1393                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1394        if (type == RES_STRING_POOL_TYPE) {
1395            mStrings.setTo(chunk, size);
1396        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1397            mResIds = (const uint32_t*)
1398                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1399            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1400        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1401                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1402            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1403                mError = BAD_TYPE;
1404                goto done;
1405            }
1406            mCurNode = (const ResXMLTree_node*)lastChunk;
1407            if (nextNode() == BAD_DOCUMENT) {
1408                mError = BAD_TYPE;
1409                goto done;
1410            }
1411            mRootNode = mCurNode;
1412            mRootExt = mCurExt;
1413            mRootCode = mEventCode;
1414            break;
1415        } else {
1416            XML_NOISY(printf("Skipping unknown chunk!\n"));
1417        }
1418        lastChunk = chunk;
1419        chunk = (const ResChunk_header*)
1420            (((const uint8_t*)chunk) + size);
1421    }
1422
1423    if (mRootNode == NULL) {
1424        ALOGW("Bad XML block: no root element node found\n");
1425        mError = BAD_TYPE;
1426        goto done;
1427    }
1428
1429    mError = mStrings.getError();
1430
1431done:
1432    restart();
1433    return mError;
1434}
1435
1436status_t ResXMLTree::getError() const
1437{
1438    return mError;
1439}
1440
1441void ResXMLTree::uninit()
1442{
1443    mError = NO_INIT;
1444    mStrings.uninit();
1445    if (mOwnedData) {
1446        free(mOwnedData);
1447        mOwnedData = NULL;
1448    }
1449    restart();
1450}
1451
1452status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1453{
1454    const uint16_t eventCode = dtohs(node->header.type);
1455
1456    status_t err = validate_chunk(
1457        &node->header, sizeof(ResXMLTree_node),
1458        mDataEnd, "ResXMLTree_node");
1459
1460    if (err >= NO_ERROR) {
1461        // Only perform additional validation on START nodes
1462        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1463            return NO_ERROR;
1464        }
1465
1466        const uint16_t headerSize = dtohs(node->header.headerSize);
1467        const uint32_t size = dtohl(node->header.size);
1468        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1469            (((const uint8_t*)node) + headerSize);
1470        // check for sensical values pulled out of the stream so far...
1471        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1472                && ((void*)attrExt > (void*)node)) {
1473            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1474                * dtohs(attrExt->attributeCount);
1475            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1476                return NO_ERROR;
1477            }
1478            ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1479                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1480                    (unsigned int)(size-headerSize));
1481        }
1482        else {
1483            ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1484                (unsigned int)headerSize, (unsigned int)size);
1485        }
1486        return BAD_TYPE;
1487    }
1488
1489    return err;
1490
1491#if 0
1492    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1493
1494    const uint16_t headerSize = dtohs(node->header.headerSize);
1495    const uint32_t size = dtohl(node->header.size);
1496
1497    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1498        if (size >= headerSize) {
1499            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1500                if (!isStart) {
1501                    return NO_ERROR;
1502                }
1503                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1504                        <= (size-headerSize)) {
1505                    return NO_ERROR;
1506                }
1507                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1508                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1509                        (int)(size-headerSize));
1510                return BAD_TYPE;
1511            }
1512            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1513                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1514            return BAD_TYPE;
1515        }
1516        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1517                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1518                (int)headerSize, (int)size);
1519        return BAD_TYPE;
1520    }
1521    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1522            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1523            (int)headerSize);
1524    return BAD_TYPE;
1525#endif
1526}
1527
1528// --------------------------------------------------------------------
1529// --------------------------------------------------------------------
1530// --------------------------------------------------------------------
1531
1532void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1533    const size_t size = dtohl(o.size);
1534    if (size >= sizeof(ResTable_config)) {
1535        *this = o;
1536    } else {
1537        memcpy(this, &o, size);
1538        memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1539    }
1540}
1541
1542void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1543    copyFromDeviceNoSwap(o);
1544    size = sizeof(ResTable_config);
1545    mcc = dtohs(mcc);
1546    mnc = dtohs(mnc);
1547    density = dtohs(density);
1548    screenWidth = dtohs(screenWidth);
1549    screenHeight = dtohs(screenHeight);
1550    sdkVersion = dtohs(sdkVersion);
1551    minorVersion = dtohs(minorVersion);
1552    smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1553    screenWidthDp = dtohs(screenWidthDp);
1554    screenHeightDp = dtohs(screenHeightDp);
1555}
1556
1557void ResTable_config::swapHtoD() {
1558    size = htodl(size);
1559    mcc = htods(mcc);
1560    mnc = htods(mnc);
1561    density = htods(density);
1562    screenWidth = htods(screenWidth);
1563    screenHeight = htods(screenHeight);
1564    sdkVersion = htods(sdkVersion);
1565    minorVersion = htods(minorVersion);
1566    smallestScreenWidthDp = htods(smallestScreenWidthDp);
1567    screenWidthDp = htods(screenWidthDp);
1568    screenHeightDp = htods(screenHeightDp);
1569}
1570
1571int ResTable_config::compare(const ResTable_config& o) const {
1572    int32_t diff = (int32_t)(imsi - o.imsi);
1573    if (diff != 0) return diff;
1574    diff = (int32_t)(locale - o.locale);
1575    if (diff != 0) return diff;
1576    diff = (int32_t)(screenType - o.screenType);
1577    if (diff != 0) return diff;
1578    diff = (int32_t)(input - o.input);
1579    if (diff != 0) return diff;
1580    diff = (int32_t)(screenSize - o.screenSize);
1581    if (diff != 0) return diff;
1582    diff = (int32_t)(version - o.version);
1583    if (diff != 0) return diff;
1584    diff = (int32_t)(screenLayout - o.screenLayout);
1585    if (diff != 0) return diff;
1586    diff = (int32_t)(uiMode - o.uiMode);
1587    if (diff != 0) return diff;
1588    diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1589    if (diff != 0) return diff;
1590    diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1591    return (int)diff;
1592}
1593
1594int ResTable_config::compareLogical(const ResTable_config& o) const {
1595    if (mcc != o.mcc) {
1596        return mcc < o.mcc ? -1 : 1;
1597    }
1598    if (mnc != o.mnc) {
1599        return mnc < o.mnc ? -1 : 1;
1600    }
1601    if (language[0] != o.language[0]) {
1602        return language[0] < o.language[0] ? -1 : 1;
1603    }
1604    if (language[1] != o.language[1]) {
1605        return language[1] < o.language[1] ? -1 : 1;
1606    }
1607    if (country[0] != o.country[0]) {
1608        return country[0] < o.country[0] ? -1 : 1;
1609    }
1610    if (country[1] != o.country[1]) {
1611        return country[1] < o.country[1] ? -1 : 1;
1612    }
1613    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1614        return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1615    }
1616    if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1617        return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1618    }
1619    if (screenWidthDp != o.screenWidthDp) {
1620        return screenWidthDp < o.screenWidthDp ? -1 : 1;
1621    }
1622    if (screenHeightDp != o.screenHeightDp) {
1623        return screenHeightDp < o.screenHeightDp ? -1 : 1;
1624    }
1625    if (screenWidth != o.screenWidth) {
1626        return screenWidth < o.screenWidth ? -1 : 1;
1627    }
1628    if (screenHeight != o.screenHeight) {
1629        return screenHeight < o.screenHeight ? -1 : 1;
1630    }
1631    if (density != o.density) {
1632        return density < o.density ? -1 : 1;
1633    }
1634    if (orientation != o.orientation) {
1635        return orientation < o.orientation ? -1 : 1;
1636    }
1637    if (touchscreen != o.touchscreen) {
1638        return touchscreen < o.touchscreen ? -1 : 1;
1639    }
1640    if (input != o.input) {
1641        return input < o.input ? -1 : 1;
1642    }
1643    if (screenLayout != o.screenLayout) {
1644        return screenLayout < o.screenLayout ? -1 : 1;
1645    }
1646    if (uiMode != o.uiMode) {
1647        return uiMode < o.uiMode ? -1 : 1;
1648    }
1649    if (version != o.version) {
1650        return version < o.version ? -1 : 1;
1651    }
1652    return 0;
1653}
1654
1655int ResTable_config::diff(const ResTable_config& o) const {
1656    int diffs = 0;
1657    if (mcc != o.mcc) diffs |= CONFIG_MCC;
1658    if (mnc != o.mnc) diffs |= CONFIG_MNC;
1659    if (locale != o.locale) diffs |= CONFIG_LOCALE;
1660    if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1661    if (density != o.density) diffs |= CONFIG_DENSITY;
1662    if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1663    if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1664            diffs |= CONFIG_KEYBOARD_HIDDEN;
1665    if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1666    if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1667    if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1668    if (version != o.version) diffs |= CONFIG_VERSION;
1669    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1670    if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1671    if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1672    if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1673    if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1674    return diffs;
1675}
1676
1677bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1678    // The order of the following tests defines the importance of one
1679    // configuration parameter over another.  Those tests first are more
1680    // important, trumping any values in those following them.
1681    if (imsi || o.imsi) {
1682        if (mcc != o.mcc) {
1683            if (!mcc) return false;
1684            if (!o.mcc) return true;
1685        }
1686
1687        if (mnc != o.mnc) {
1688            if (!mnc) return false;
1689            if (!o.mnc) return true;
1690        }
1691    }
1692
1693    if (locale || o.locale) {
1694        if (language[0] != o.language[0]) {
1695            if (!language[0]) return false;
1696            if (!o.language[0]) return true;
1697        }
1698
1699        if (country[0] != o.country[0]) {
1700            if (!country[0]) return false;
1701            if (!o.country[0]) return true;
1702        }
1703    }
1704
1705    if (screenLayout || o.screenLayout) {
1706        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1707            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1708            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1709        }
1710    }
1711
1712    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1713        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1714            if (!smallestScreenWidthDp) return false;
1715            if (!o.smallestScreenWidthDp) return true;
1716        }
1717    }
1718
1719    if (screenSizeDp || o.screenSizeDp) {
1720        if (screenWidthDp != o.screenWidthDp) {
1721            if (!screenWidthDp) return false;
1722            if (!o.screenWidthDp) return true;
1723        }
1724
1725        if (screenHeightDp != o.screenHeightDp) {
1726            if (!screenHeightDp) return false;
1727            if (!o.screenHeightDp) return true;
1728        }
1729    }
1730
1731    if (screenLayout || o.screenLayout) {
1732        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1733            if (!(screenLayout & MASK_SCREENSIZE)) return false;
1734            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1735        }
1736        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1737            if (!(screenLayout & MASK_SCREENLONG)) return false;
1738            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1739        }
1740    }
1741
1742    if (orientation != o.orientation) {
1743        if (!orientation) return false;
1744        if (!o.orientation) return true;
1745    }
1746
1747    if (uiMode || o.uiMode) {
1748        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
1749            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
1750            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
1751        }
1752        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
1753            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
1754            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
1755        }
1756    }
1757
1758    // density is never 'more specific'
1759    // as the default just equals 160
1760
1761    if (touchscreen != o.touchscreen) {
1762        if (!touchscreen) return false;
1763        if (!o.touchscreen) return true;
1764    }
1765
1766    if (input || o.input) {
1767        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
1768            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
1769            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
1770        }
1771
1772        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
1773            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
1774            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
1775        }
1776
1777        if (keyboard != o.keyboard) {
1778            if (!keyboard) return false;
1779            if (!o.keyboard) return true;
1780        }
1781
1782        if (navigation != o.navigation) {
1783            if (!navigation) return false;
1784            if (!o.navigation) return true;
1785        }
1786    }
1787
1788    if (screenSize || o.screenSize) {
1789        if (screenWidth != o.screenWidth) {
1790            if (!screenWidth) return false;
1791            if (!o.screenWidth) return true;
1792        }
1793
1794        if (screenHeight != o.screenHeight) {
1795            if (!screenHeight) return false;
1796            if (!o.screenHeight) return true;
1797        }
1798    }
1799
1800    if (version || o.version) {
1801        if (sdkVersion != o.sdkVersion) {
1802            if (!sdkVersion) return false;
1803            if (!o.sdkVersion) return true;
1804        }
1805
1806        if (minorVersion != o.minorVersion) {
1807            if (!minorVersion) return false;
1808            if (!o.minorVersion) return true;
1809        }
1810    }
1811    return false;
1812}
1813
1814bool ResTable_config::isBetterThan(const ResTable_config& o,
1815        const ResTable_config* requested) const {
1816    if (requested) {
1817        if (imsi || o.imsi) {
1818            if ((mcc != o.mcc) && requested->mcc) {
1819                return (mcc);
1820            }
1821
1822            if ((mnc != o.mnc) && requested->mnc) {
1823                return (mnc);
1824            }
1825        }
1826
1827        if (locale || o.locale) {
1828            if ((language[0] != o.language[0]) && requested->language[0]) {
1829                return (language[0]);
1830            }
1831
1832            if ((country[0] != o.country[0]) && requested->country[0]) {
1833                return (country[0]);
1834            }
1835        }
1836
1837        if (screenLayout || o.screenLayout) {
1838            if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
1839                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
1840                int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
1841                int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
1842                return (myLayoutDir > oLayoutDir);
1843            }
1844        }
1845
1846        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1847            // The configuration closest to the actual size is best.
1848            // We assume that larger configs have already been filtered
1849            // out at this point.  That means we just want the largest one.
1850            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1851                return smallestScreenWidthDp > o.smallestScreenWidthDp;
1852            }
1853        }
1854
1855        if (screenSizeDp || o.screenSizeDp) {
1856            // "Better" is based on the sum of the difference between both
1857            // width and height from the requested dimensions.  We are
1858            // assuming the invalid configs (with smaller dimens) have
1859            // already been filtered.  Note that if a particular dimension
1860            // is unspecified, we will end up with a large value (the
1861            // difference between 0 and the requested dimension), which is
1862            // good since we will prefer a config that has specified a
1863            // dimension value.
1864            int myDelta = 0, otherDelta = 0;
1865            if (requested->screenWidthDp) {
1866                myDelta += requested->screenWidthDp - screenWidthDp;
1867                otherDelta += requested->screenWidthDp - o.screenWidthDp;
1868            }
1869            if (requested->screenHeightDp) {
1870                myDelta += requested->screenHeightDp - screenHeightDp;
1871                otherDelta += requested->screenHeightDp - o.screenHeightDp;
1872            }
1873            //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
1874            //    screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
1875            //    requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
1876            if (myDelta != otherDelta) {
1877                return myDelta < otherDelta;
1878            }
1879        }
1880
1881        if (screenLayout || o.screenLayout) {
1882            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
1883                    && (requested->screenLayout & MASK_SCREENSIZE)) {
1884                // A little backwards compatibility here: undefined is
1885                // considered equivalent to normal.  But only if the
1886                // requested size is at least normal; otherwise, small
1887                // is better than the default.
1888                int mySL = (screenLayout & MASK_SCREENSIZE);
1889                int oSL = (o.screenLayout & MASK_SCREENSIZE);
1890                int fixedMySL = mySL;
1891                int fixedOSL = oSL;
1892                if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
1893                    if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
1894                    if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
1895                }
1896                // For screen size, the best match is the one that is
1897                // closest to the requested screen size, but not over
1898                // (the not over part is dealt with in match() below).
1899                if (fixedMySL == fixedOSL) {
1900                    // If the two are the same, but 'this' is actually
1901                    // undefined, then the other is really a better match.
1902                    if (mySL == 0) return false;
1903                    return true;
1904                }
1905                if (fixedMySL != fixedOSL) {
1906                    return fixedMySL > fixedOSL;
1907                }
1908            }
1909            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
1910                    && (requested->screenLayout & MASK_SCREENLONG)) {
1911                return (screenLayout & MASK_SCREENLONG);
1912            }
1913        }
1914
1915        if ((orientation != o.orientation) && requested->orientation) {
1916            return (orientation);
1917        }
1918
1919        if (uiMode || o.uiMode) {
1920            if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
1921                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
1922                return (uiMode & MASK_UI_MODE_TYPE);
1923            }
1924            if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
1925                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
1926                return (uiMode & MASK_UI_MODE_NIGHT);
1927            }
1928        }
1929
1930        if (screenType || o.screenType) {
1931            if (density != o.density) {
1932                // density is tough.  Any density is potentially useful
1933                // because the system will scale it.  Scaling down
1934                // is generally better than scaling up.
1935                // Default density counts as 160dpi (the system default)
1936                // TODO - remove 160 constants
1937                int h = (density?density:160);
1938                int l = (o.density?o.density:160);
1939                bool bImBigger = true;
1940                if (l > h) {
1941                    int t = h;
1942                    h = l;
1943                    l = t;
1944                    bImBigger = false;
1945                }
1946
1947                int reqValue = (requested->density?requested->density:160);
1948                if (reqValue >= h) {
1949                    // requested value higher than both l and h, give h
1950                    return bImBigger;
1951                }
1952                if (l >= reqValue) {
1953                    // requested value lower than both l and h, give l
1954                    return !bImBigger;
1955                }
1956                // saying that scaling down is 2x better than up
1957                if (((2 * l) - reqValue) * h > reqValue * reqValue) {
1958                    return !bImBigger;
1959                } else {
1960                    return bImBigger;
1961                }
1962            }
1963
1964            if ((touchscreen != o.touchscreen) && requested->touchscreen) {
1965                return (touchscreen);
1966            }
1967        }
1968
1969        if (input || o.input) {
1970            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
1971            const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
1972            if (keysHidden != oKeysHidden) {
1973                const int reqKeysHidden =
1974                        requested->inputFlags & MASK_KEYSHIDDEN;
1975                if (reqKeysHidden) {
1976
1977                    if (!keysHidden) return false;
1978                    if (!oKeysHidden) return true;
1979                    // For compatibility, we count KEYSHIDDEN_NO as being
1980                    // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
1981                    // these by making an exact match more specific.
1982                    if (reqKeysHidden == keysHidden) return true;
1983                    if (reqKeysHidden == oKeysHidden) return false;
1984                }
1985            }
1986
1987            const int navHidden = inputFlags & MASK_NAVHIDDEN;
1988            const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
1989            if (navHidden != oNavHidden) {
1990                const int reqNavHidden =
1991                        requested->inputFlags & MASK_NAVHIDDEN;
1992                if (reqNavHidden) {
1993
1994                    if (!navHidden) return false;
1995                    if (!oNavHidden) return true;
1996                }
1997            }
1998
1999            if ((keyboard != o.keyboard) && requested->keyboard) {
2000                return (keyboard);
2001            }
2002
2003            if ((navigation != o.navigation) && requested->navigation) {
2004                return (navigation);
2005            }
2006        }
2007
2008        if (screenSize || o.screenSize) {
2009            // "Better" is based on the sum of the difference between both
2010            // width and height from the requested dimensions.  We are
2011            // assuming the invalid configs (with smaller sizes) have
2012            // already been filtered.  Note that if a particular dimension
2013            // is unspecified, we will end up with a large value (the
2014            // difference between 0 and the requested dimension), which is
2015            // good since we will prefer a config that has specified a
2016            // size value.
2017            int myDelta = 0, otherDelta = 0;
2018            if (requested->screenWidth) {
2019                myDelta += requested->screenWidth - screenWidth;
2020                otherDelta += requested->screenWidth - o.screenWidth;
2021            }
2022            if (requested->screenHeight) {
2023                myDelta += requested->screenHeight - screenHeight;
2024                otherDelta += requested->screenHeight - o.screenHeight;
2025            }
2026            if (myDelta != otherDelta) {
2027                return myDelta < otherDelta;
2028            }
2029        }
2030
2031        if (version || o.version) {
2032            if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2033                return (sdkVersion > o.sdkVersion);
2034            }
2035
2036            if ((minorVersion != o.minorVersion) &&
2037                    requested->minorVersion) {
2038                return (minorVersion);
2039            }
2040        }
2041
2042        return false;
2043    }
2044    return isMoreSpecificThan(o);
2045}
2046
2047bool ResTable_config::match(const ResTable_config& settings) const {
2048    if (imsi != 0) {
2049        if (mcc != 0 && mcc != settings.mcc) {
2050            return false;
2051        }
2052        if (mnc != 0 && mnc != settings.mnc) {
2053            return false;
2054        }
2055    }
2056    if (locale != 0) {
2057        if (language[0] != 0
2058            && (language[0] != settings.language[0]
2059                || language[1] != settings.language[1])) {
2060            return false;
2061        }
2062        if (country[0] != 0
2063            && (country[0] != settings.country[0]
2064                || country[1] != settings.country[1])) {
2065            return false;
2066        }
2067    }
2068    if (screenConfig != 0) {
2069        const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2070        const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2071        if (layoutDir != 0 && layoutDir != setLayoutDir) {
2072            return false;
2073        }
2074
2075        const int screenSize = screenLayout&MASK_SCREENSIZE;
2076        const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2077        // Any screen sizes for larger screens than the setting do not
2078        // match.
2079        if (screenSize != 0 && screenSize > setScreenSize) {
2080            return false;
2081        }
2082
2083        const int screenLong = screenLayout&MASK_SCREENLONG;
2084        const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2085        if (screenLong != 0 && screenLong != setScreenLong) {
2086            return false;
2087        }
2088
2089        const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2090        const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2091        if (uiModeType != 0 && uiModeType != setUiModeType) {
2092            return false;
2093        }
2094
2095        const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2096        const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2097        if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2098            return false;
2099        }
2100
2101        if (smallestScreenWidthDp != 0
2102                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2103            return false;
2104        }
2105    }
2106    if (screenSizeDp != 0) {
2107        if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2108            //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2109            return false;
2110        }
2111        if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2112            //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2113            return false;
2114        }
2115    }
2116    if (screenType != 0) {
2117        if (orientation != 0 && orientation != settings.orientation) {
2118            return false;
2119        }
2120        // density always matches - we can scale it.  See isBetterThan
2121        if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2122            return false;
2123        }
2124    }
2125    if (input != 0) {
2126        const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2127        const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2128        if (keysHidden != 0 && keysHidden != setKeysHidden) {
2129            // For compatibility, we count a request for KEYSHIDDEN_NO as also
2130            // matching the more recent KEYSHIDDEN_SOFT.  Basically
2131            // KEYSHIDDEN_NO means there is some kind of keyboard available.
2132            //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2133            if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2134                //ALOGI("No match!");
2135                return false;
2136            }
2137        }
2138        const int navHidden = inputFlags&MASK_NAVHIDDEN;
2139        const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2140        if (navHidden != 0 && navHidden != setNavHidden) {
2141            return false;
2142        }
2143        if (keyboard != 0 && keyboard != settings.keyboard) {
2144            return false;
2145        }
2146        if (navigation != 0 && navigation != settings.navigation) {
2147            return false;
2148        }
2149    }
2150    if (screenSize != 0) {
2151        if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2152            return false;
2153        }
2154        if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2155            return false;
2156        }
2157    }
2158    if (version != 0) {
2159        if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2160            return false;
2161        }
2162        if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2163            return false;
2164        }
2165    }
2166    return true;
2167}
2168
2169void ResTable_config::getLocale(char str[6]) const {
2170    memset(str, 0, 6);
2171    if (language[0]) {
2172        str[0] = language[0];
2173        str[1] = language[1];
2174        if (country[0]) {
2175            str[2] = '_';
2176            str[3] = country[0];
2177            str[4] = country[1];
2178        }
2179    }
2180}
2181
2182String8 ResTable_config::toString() const {
2183    String8 res;
2184
2185    if (mcc != 0) {
2186        if (res.size() > 0) res.append("-");
2187        res.appendFormat("%dmcc", dtohs(mcc));
2188    }
2189    if (mnc != 0) {
2190        if (res.size() > 0) res.append("-");
2191        res.appendFormat("%dmnc", dtohs(mnc));
2192    }
2193    if (language[0] != 0) {
2194        if (res.size() > 0) res.append("-");
2195        res.append(language, 2);
2196    }
2197    if (country[0] != 0) {
2198        if (res.size() > 0) res.append("-");
2199        res.append(country, 2);
2200    }
2201    if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2202        if (res.size() > 0) res.append("-");
2203        switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2204            case ResTable_config::LAYOUTDIR_LTR:
2205                res.append("ldltr");
2206                break;
2207            case ResTable_config::LAYOUTDIR_RTL:
2208                res.append("ldrtl");
2209                break;
2210            default:
2211                res.appendFormat("layoutDir=%d",
2212                        dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2213                break;
2214        }
2215    }
2216    if (smallestScreenWidthDp != 0) {
2217        if (res.size() > 0) res.append("-");
2218        res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2219    }
2220    if (screenWidthDp != 0) {
2221        if (res.size() > 0) res.append("-");
2222        res.appendFormat("w%ddp", dtohs(screenWidthDp));
2223    }
2224    if (screenHeightDp != 0) {
2225        if (res.size() > 0) res.append("-");
2226        res.appendFormat("h%ddp", dtohs(screenHeightDp));
2227    }
2228    if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2229        if (res.size() > 0) res.append("-");
2230        switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2231            case ResTable_config::SCREENSIZE_SMALL:
2232                res.append("small");
2233                break;
2234            case ResTable_config::SCREENSIZE_NORMAL:
2235                res.append("normal");
2236                break;
2237            case ResTable_config::SCREENSIZE_LARGE:
2238                res.append("large");
2239                break;
2240            case ResTable_config::SCREENSIZE_XLARGE:
2241                res.append("xlarge");
2242                break;
2243            default:
2244                res.appendFormat("screenLayoutSize=%d",
2245                        dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2246                break;
2247        }
2248    }
2249    if ((screenLayout&MASK_SCREENLONG) != 0) {
2250        if (res.size() > 0) res.append("-");
2251        switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2252            case ResTable_config::SCREENLONG_NO:
2253                res.append("notlong");
2254                break;
2255            case ResTable_config::SCREENLONG_YES:
2256                res.append("long");
2257                break;
2258            default:
2259                res.appendFormat("screenLayoutLong=%d",
2260                        dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2261                break;
2262        }
2263    }
2264    if (orientation != ORIENTATION_ANY) {
2265        if (res.size() > 0) res.append("-");
2266        switch (orientation) {
2267            case ResTable_config::ORIENTATION_PORT:
2268                res.append("port");
2269                break;
2270            case ResTable_config::ORIENTATION_LAND:
2271                res.append("land");
2272                break;
2273            case ResTable_config::ORIENTATION_SQUARE:
2274                res.append("square");
2275                break;
2276            default:
2277                res.appendFormat("orientation=%d", dtohs(orientation));
2278                break;
2279        }
2280    }
2281    if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2282        if (res.size() > 0) res.append("-");
2283        switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2284            case ResTable_config::UI_MODE_TYPE_DESK:
2285                res.append("desk");
2286                break;
2287            case ResTable_config::UI_MODE_TYPE_CAR:
2288                res.append("car");
2289                break;
2290            case ResTable_config::UI_MODE_TYPE_TELEVISION:
2291                res.append("television");
2292                break;
2293            case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2294                res.append("appliance");
2295                break;
2296            default:
2297                res.appendFormat("uiModeType=%d",
2298                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2299                break;
2300        }
2301    }
2302    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2303        if (res.size() > 0) res.append("-");
2304        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2305            case ResTable_config::UI_MODE_NIGHT_NO:
2306                res.append("notnight");
2307                break;
2308            case ResTable_config::UI_MODE_NIGHT_YES:
2309                res.append("night");
2310                break;
2311            default:
2312                res.appendFormat("uiModeNight=%d",
2313                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2314                break;
2315        }
2316    }
2317    if (density != DENSITY_DEFAULT) {
2318        if (res.size() > 0) res.append("-");
2319        switch (density) {
2320            case ResTable_config::DENSITY_LOW:
2321                res.append("ldpi");
2322                break;
2323            case ResTable_config::DENSITY_MEDIUM:
2324                res.append("mdpi");
2325                break;
2326            case ResTable_config::DENSITY_TV:
2327                res.append("tvdpi");
2328                break;
2329            case ResTable_config::DENSITY_HIGH:
2330                res.append("hdpi");
2331                break;
2332            case ResTable_config::DENSITY_XHIGH:
2333                res.append("xhdpi");
2334                break;
2335            case ResTable_config::DENSITY_XXHIGH:
2336                res.append("xxhdpi");
2337                break;
2338            case ResTable_config::DENSITY_NONE:
2339                res.append("nodpi");
2340                break;
2341            default:
2342                res.appendFormat("%ddpi", dtohs(density));
2343                break;
2344        }
2345    }
2346    if (touchscreen != TOUCHSCREEN_ANY) {
2347        if (res.size() > 0) res.append("-");
2348        switch (touchscreen) {
2349            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2350                res.append("notouch");
2351                break;
2352            case ResTable_config::TOUCHSCREEN_FINGER:
2353                res.append("finger");
2354                break;
2355            case ResTable_config::TOUCHSCREEN_STYLUS:
2356                res.append("stylus");
2357                break;
2358            default:
2359                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2360                break;
2361        }
2362    }
2363    if (keyboard != KEYBOARD_ANY) {
2364        if (res.size() > 0) res.append("-");
2365        switch (keyboard) {
2366            case ResTable_config::KEYBOARD_NOKEYS:
2367                res.append("nokeys");
2368                break;
2369            case ResTable_config::KEYBOARD_QWERTY:
2370                res.append("qwerty");
2371                break;
2372            case ResTable_config::KEYBOARD_12KEY:
2373                res.append("12key");
2374                break;
2375            default:
2376                res.appendFormat("keyboard=%d", dtohs(keyboard));
2377                break;
2378        }
2379    }
2380    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2381        if (res.size() > 0) res.append("-");
2382        switch (inputFlags&MASK_KEYSHIDDEN) {
2383            case ResTable_config::KEYSHIDDEN_NO:
2384                res.append("keysexposed");
2385                break;
2386            case ResTable_config::KEYSHIDDEN_YES:
2387                res.append("keyshidden");
2388                break;
2389            case ResTable_config::KEYSHIDDEN_SOFT:
2390                res.append("keyssoft");
2391                break;
2392        }
2393    }
2394    if (navigation != NAVIGATION_ANY) {
2395        if (res.size() > 0) res.append("-");
2396        switch (navigation) {
2397            case ResTable_config::NAVIGATION_NONAV:
2398                res.append("nonav");
2399                break;
2400            case ResTable_config::NAVIGATION_DPAD:
2401                res.append("dpad");
2402                break;
2403            case ResTable_config::NAVIGATION_TRACKBALL:
2404                res.append("trackball");
2405                break;
2406            case ResTable_config::NAVIGATION_WHEEL:
2407                res.append("wheel");
2408                break;
2409            default:
2410                res.appendFormat("navigation=%d", dtohs(navigation));
2411                break;
2412        }
2413    }
2414    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2415        if (res.size() > 0) res.append("-");
2416        switch (inputFlags&MASK_NAVHIDDEN) {
2417            case ResTable_config::NAVHIDDEN_NO:
2418                res.append("navsexposed");
2419                break;
2420            case ResTable_config::NAVHIDDEN_YES:
2421                res.append("navhidden");
2422                break;
2423            default:
2424                res.appendFormat("inputFlagsNavHidden=%d",
2425                        dtohs(inputFlags&MASK_NAVHIDDEN));
2426                break;
2427        }
2428    }
2429    if (screenSize != 0) {
2430        if (res.size() > 0) res.append("-");
2431        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2432    }
2433    if (version != 0) {
2434        if (res.size() > 0) res.append("-");
2435        res.appendFormat("v%d", dtohs(sdkVersion));
2436        if (minorVersion != 0) {
2437            res.appendFormat(".%d", dtohs(minorVersion));
2438        }
2439    }
2440
2441    return res;
2442}
2443
2444// --------------------------------------------------------------------
2445// --------------------------------------------------------------------
2446// --------------------------------------------------------------------
2447
2448struct ResTable::Header
2449{
2450    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2451        resourceIDMap(NULL), resourceIDMapSize(0) { }
2452
2453    ~Header()
2454    {
2455        free(resourceIDMap);
2456    }
2457
2458    ResTable* const                 owner;
2459    void*                           ownedData;
2460    const ResTable_header*          header;
2461    size_t                          size;
2462    const uint8_t*                  dataEnd;
2463    size_t                          index;
2464    void*                           cookie;
2465
2466    ResStringPool                   values;
2467    uint32_t*                       resourceIDMap;
2468    size_t                          resourceIDMapSize;
2469};
2470
2471struct ResTable::Type
2472{
2473    Type(const Header* _header, const Package* _package, size_t count)
2474        : header(_header), package(_package), entryCount(count),
2475          typeSpec(NULL), typeSpecFlags(NULL) { }
2476    const Header* const             header;
2477    const Package* const            package;
2478    const size_t                    entryCount;
2479    const ResTable_typeSpec*        typeSpec;
2480    const uint32_t*                 typeSpecFlags;
2481    Vector<const ResTable_type*>    configs;
2482};
2483
2484struct ResTable::Package
2485{
2486    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2487        : owner(_owner), header(_header), package(_package) { }
2488    ~Package()
2489    {
2490        size_t i = types.size();
2491        while (i > 0) {
2492            i--;
2493            delete types[i];
2494        }
2495    }
2496
2497    ResTable* const                 owner;
2498    const Header* const             header;
2499    const ResTable_package* const   package;
2500    Vector<Type*>                   types;
2501
2502    ResStringPool                   typeStrings;
2503    ResStringPool                   keyStrings;
2504
2505    const Type* getType(size_t idx) const {
2506        return idx < types.size() ? types[idx] : NULL;
2507    }
2508};
2509
2510// A group of objects describing a particular resource package.
2511// The first in 'package' is always the root object (from the resource
2512// table that defined the package); the ones after are skins on top of it.
2513struct ResTable::PackageGroup
2514{
2515    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2516        : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
2517    ~PackageGroup() {
2518        clearBagCache();
2519        const size_t N = packages.size();
2520        for (size_t i=0; i<N; i++) {
2521            Package* pkg = packages[i];
2522            if (pkg->owner == owner) {
2523                delete pkg;
2524            }
2525        }
2526    }
2527
2528    void clearBagCache() {
2529        if (bags) {
2530            TABLE_NOISY(printf("bags=%p\n", bags));
2531            Package* pkg = packages[0];
2532            TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2533            for (size_t i=0; i<typeCount; i++) {
2534                TABLE_NOISY(printf("type=%d\n", i));
2535                const Type* type = pkg->getType(i);
2536                if (type != NULL) {
2537                    bag_set** typeBags = bags[i];
2538                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2539                    if (typeBags) {
2540                        TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2541                        const size_t N = type->entryCount;
2542                        for (size_t j=0; j<N; j++) {
2543                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2544                                free(typeBags[j]);
2545                        }
2546                        free(typeBags);
2547                    }
2548                }
2549            }
2550            free(bags);
2551            bags = NULL;
2552        }
2553    }
2554
2555    ResTable* const                 owner;
2556    String16 const                  name;
2557    uint32_t const                  id;
2558    Vector<Package*>                packages;
2559
2560    // This is for finding typeStrings and other common package stuff.
2561    Package*                        basePackage;
2562
2563    // For quick access.
2564    size_t                          typeCount;
2565
2566    // Computed attribute bags, first indexed by the type and second
2567    // by the entry in that type.
2568    bag_set***                      bags;
2569};
2570
2571struct ResTable::bag_set
2572{
2573    size_t numAttrs;    // number in array
2574    size_t availAttrs;  // total space in array
2575    uint32_t typeSpecFlags;
2576    // Followed by 'numAttr' bag_entry structures.
2577};
2578
2579ResTable::Theme::Theme(const ResTable& table)
2580    : mTable(table)
2581{
2582    memset(mPackages, 0, sizeof(mPackages));
2583}
2584
2585ResTable::Theme::~Theme()
2586{
2587    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2588        package_info* pi = mPackages[i];
2589        if (pi != NULL) {
2590            free_package(pi);
2591        }
2592    }
2593}
2594
2595void ResTable::Theme::free_package(package_info* pi)
2596{
2597    for (size_t j=0; j<pi->numTypes; j++) {
2598        theme_entry* te = pi->types[j].entries;
2599        if (te != NULL) {
2600            free(te);
2601        }
2602    }
2603    free(pi);
2604}
2605
2606ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2607{
2608    package_info* newpi = (package_info*)malloc(
2609        sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2610    newpi->numTypes = pi->numTypes;
2611    for (size_t j=0; j<newpi->numTypes; j++) {
2612        size_t cnt = pi->types[j].numEntries;
2613        newpi->types[j].numEntries = cnt;
2614        theme_entry* te = pi->types[j].entries;
2615        if (te != NULL) {
2616            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2617            newpi->types[j].entries = newte;
2618            memcpy(newte, te, cnt*sizeof(theme_entry));
2619        } else {
2620            newpi->types[j].entries = NULL;
2621        }
2622    }
2623    return newpi;
2624}
2625
2626status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2627{
2628    const bag_entry* bag;
2629    uint32_t bagTypeSpecFlags = 0;
2630    mTable.lock();
2631    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2632    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2633    if (N < 0) {
2634        mTable.unlock();
2635        return N;
2636    }
2637
2638    uint32_t curPackage = 0xffffffff;
2639    ssize_t curPackageIndex = 0;
2640    package_info* curPI = NULL;
2641    uint32_t curType = 0xffffffff;
2642    size_t numEntries = 0;
2643    theme_entry* curEntries = NULL;
2644
2645    const bag_entry* end = bag + N;
2646    while (bag < end) {
2647        const uint32_t attrRes = bag->map.name.ident;
2648        const uint32_t p = Res_GETPACKAGE(attrRes);
2649        const uint32_t t = Res_GETTYPE(attrRes);
2650        const uint32_t e = Res_GETENTRY(attrRes);
2651
2652        if (curPackage != p) {
2653            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2654            if (pidx < 0) {
2655                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2656                bag++;
2657                continue;
2658            }
2659            curPackage = p;
2660            curPackageIndex = pidx;
2661            curPI = mPackages[pidx];
2662            if (curPI == NULL) {
2663                PackageGroup* const grp = mTable.mPackageGroups[pidx];
2664                int cnt = grp->typeCount;
2665                curPI = (package_info*)malloc(
2666                    sizeof(package_info) + (cnt*sizeof(type_info)));
2667                curPI->numTypes = cnt;
2668                memset(curPI->types, 0, cnt*sizeof(type_info));
2669                mPackages[pidx] = curPI;
2670            }
2671            curType = 0xffffffff;
2672        }
2673        if (curType != t) {
2674            if (t >= curPI->numTypes) {
2675                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2676                bag++;
2677                continue;
2678            }
2679            curType = t;
2680            curEntries = curPI->types[t].entries;
2681            if (curEntries == NULL) {
2682                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2683                const Type* type = grp->packages[0]->getType(t);
2684                int cnt = type != NULL ? type->entryCount : 0;
2685                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2686                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2687                curPI->types[t].numEntries = cnt;
2688                curPI->types[t].entries = curEntries;
2689            }
2690            numEntries = curPI->types[t].numEntries;
2691        }
2692        if (e >= numEntries) {
2693            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2694            bag++;
2695            continue;
2696        }
2697        theme_entry* curEntry = curEntries + e;
2698        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2699                   attrRes, bag->map.value.dataType, bag->map.value.data,
2700             curEntry->value.dataType));
2701        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2702            curEntry->stringBlock = bag->stringBlock;
2703            curEntry->typeSpecFlags |= bagTypeSpecFlags;
2704            curEntry->value = bag->map.value;
2705        }
2706
2707        bag++;
2708    }
2709
2710    mTable.unlock();
2711
2712    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
2713    //dumpToLog();
2714
2715    return NO_ERROR;
2716}
2717
2718status_t ResTable::Theme::setTo(const Theme& other)
2719{
2720    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
2721    //dumpToLog();
2722    //other.dumpToLog();
2723
2724    if (&mTable == &other.mTable) {
2725        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2726            if (mPackages[i] != NULL) {
2727                free_package(mPackages[i]);
2728            }
2729            if (other.mPackages[i] != NULL) {
2730                mPackages[i] = copy_package(other.mPackages[i]);
2731            } else {
2732                mPackages[i] = NULL;
2733            }
2734        }
2735    } else {
2736        // @todo: need to really implement this, not just copy
2737        // the system package (which is still wrong because it isn't
2738        // fixing up resource references).
2739        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2740            if (mPackages[i] != NULL) {
2741                free_package(mPackages[i]);
2742            }
2743            if (i == 0 && other.mPackages[i] != NULL) {
2744                mPackages[i] = copy_package(other.mPackages[i]);
2745            } else {
2746                mPackages[i] = NULL;
2747            }
2748        }
2749    }
2750
2751    //ALOGI("Final theme:");
2752    //dumpToLog();
2753
2754    return NO_ERROR;
2755}
2756
2757ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
2758        uint32_t* outTypeSpecFlags) const
2759{
2760    int cnt = 20;
2761
2762    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
2763
2764    do {
2765        const ssize_t p = mTable.getResourcePackageIndex(resID);
2766        const uint32_t t = Res_GETTYPE(resID);
2767        const uint32_t e = Res_GETENTRY(resID);
2768
2769        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
2770
2771        if (p >= 0) {
2772            const package_info* const pi = mPackages[p];
2773            TABLE_THEME(ALOGI("Found package: %p", pi));
2774            if (pi != NULL) {
2775                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
2776                if (t < pi->numTypes) {
2777                    const type_info& ti = pi->types[t];
2778                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
2779                    if (e < ti.numEntries) {
2780                        const theme_entry& te = ti.entries[e];
2781                        if (outTypeSpecFlags != NULL) {
2782                            *outTypeSpecFlags |= te.typeSpecFlags;
2783                        }
2784                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
2785                                te.value.dataType, te.value.data));
2786                        const uint8_t type = te.value.dataType;
2787                        if (type == Res_value::TYPE_ATTRIBUTE) {
2788                            if (cnt > 0) {
2789                                cnt--;
2790                                resID = te.value.data;
2791                                continue;
2792                            }
2793                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
2794                            return BAD_INDEX;
2795                        } else if (type != Res_value::TYPE_NULL) {
2796                            *outValue = te.value;
2797                            return te.stringBlock;
2798                        }
2799                        return BAD_INDEX;
2800                    }
2801                }
2802            }
2803        }
2804        break;
2805
2806    } while (true);
2807
2808    return BAD_INDEX;
2809}
2810
2811ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
2812        ssize_t blockIndex, uint32_t* outLastRef,
2813        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
2814{
2815    //printf("Resolving type=0x%x\n", inOutValue->dataType);
2816    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
2817        uint32_t newTypeSpecFlags;
2818        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
2819        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
2820             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
2821        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
2822        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
2823        if (blockIndex < 0) {
2824            return blockIndex;
2825        }
2826    }
2827    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
2828            inoutTypeSpecFlags, inoutConfig);
2829}
2830
2831void ResTable::Theme::dumpToLog() const
2832{
2833    ALOGI("Theme %p:\n", this);
2834    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2835        package_info* pi = mPackages[i];
2836        if (pi == NULL) continue;
2837
2838        ALOGI("  Package #0x%02x:\n", (int)(i+1));
2839        for (size_t j=0; j<pi->numTypes; j++) {
2840            type_info& ti = pi->types[j];
2841            if (ti.numEntries == 0) continue;
2842
2843            ALOGI("    Type #0x%02x:\n", (int)(j+1));
2844            for (size_t k=0; k<ti.numEntries; k++) {
2845                theme_entry& te = ti.entries[k];
2846                if (te.value.dataType == Res_value::TYPE_NULL) continue;
2847                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
2848                     (int)Res_MAKEID(i, j, k),
2849                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
2850            }
2851        }
2852    }
2853}
2854
2855ResTable::ResTable()
2856    : mError(NO_INIT)
2857{
2858    memset(&mParams, 0, sizeof(mParams));
2859    memset(mPackageMap, 0, sizeof(mPackageMap));
2860    //ALOGI("Creating ResTable %p\n", this);
2861}
2862
2863ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
2864    : mError(NO_INIT)
2865{
2866    memset(&mParams, 0, sizeof(mParams));
2867    memset(mPackageMap, 0, sizeof(mPackageMap));
2868    add(data, size, cookie, copyData);
2869    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
2870    //ALOGI("Creating ResTable %p\n", this);
2871}
2872
2873ResTable::~ResTable()
2874{
2875    //ALOGI("Destroying ResTable in %p\n", this);
2876    uninit();
2877}
2878
2879inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
2880{
2881    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
2882}
2883
2884status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
2885                       const void* idmap)
2886{
2887    return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
2888}
2889
2890status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
2891{
2892    const void* data = asset->getBuffer(true);
2893    if (data == NULL) {
2894        ALOGW("Unable to get buffer of resource asset file");
2895        return UNKNOWN_ERROR;
2896    }
2897    size_t size = (size_t)asset->getLength();
2898    return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
2899}
2900
2901status_t ResTable::add(ResTable* src)
2902{
2903    mError = src->mError;
2904
2905    for (size_t i=0; i<src->mHeaders.size(); i++) {
2906        mHeaders.add(src->mHeaders[i]);
2907    }
2908
2909    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
2910        PackageGroup* srcPg = src->mPackageGroups[i];
2911        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
2912        for (size_t j=0; j<srcPg->packages.size(); j++) {
2913            pg->packages.add(srcPg->packages[j]);
2914        }
2915        pg->basePackage = srcPg->basePackage;
2916        pg->typeCount = srcPg->typeCount;
2917        mPackageGroups.add(pg);
2918    }
2919
2920    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
2921
2922    return mError;
2923}
2924
2925status_t ResTable::add(const void* data, size_t size, void* cookie,
2926                       Asset* asset, bool copyData, const Asset* idmap)
2927{
2928    if (!data) return NO_ERROR;
2929    Header* header = new Header(this);
2930    header->index = mHeaders.size();
2931    header->cookie = cookie;
2932    if (idmap != NULL) {
2933        const size_t idmap_size = idmap->getLength();
2934        const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
2935        header->resourceIDMap = (uint32_t*)malloc(idmap_size);
2936        if (header->resourceIDMap == NULL) {
2937            delete header;
2938            return (mError = NO_MEMORY);
2939        }
2940        memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
2941        header->resourceIDMapSize = idmap_size;
2942    }
2943    mHeaders.add(header);
2944
2945    const bool notDeviceEndian = htods(0xf0) != 0xf0;
2946
2947    LOAD_TABLE_NOISY(
2948        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
2949             "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
2950
2951    if (copyData || notDeviceEndian) {
2952        header->ownedData = malloc(size);
2953        if (header->ownedData == NULL) {
2954            return (mError=NO_MEMORY);
2955        }
2956        memcpy(header->ownedData, data, size);
2957        data = header->ownedData;
2958    }
2959
2960    header->header = (const ResTable_header*)data;
2961    header->size = dtohl(header->header->header.size);
2962    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
2963    //     dtohl(header->header->header.size), header->header->header.size);
2964    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
2965    LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
2966                                  16, 16, 0, false, printToLogFunc));
2967    if (dtohs(header->header->header.headerSize) > header->size
2968            || header->size > size) {
2969        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
2970             (int)dtohs(header->header->header.headerSize),
2971             (int)header->size, (int)size);
2972        return (mError=BAD_TYPE);
2973    }
2974    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
2975        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
2976             (int)dtohs(header->header->header.headerSize),
2977             (int)header->size);
2978        return (mError=BAD_TYPE);
2979    }
2980    header->dataEnd = ((const uint8_t*)header->header) + header->size;
2981
2982    // Iterate through all chunks.
2983    size_t curPackage = 0;
2984
2985    const ResChunk_header* chunk =
2986        (const ResChunk_header*)(((const uint8_t*)header->header)
2987                                 + dtohs(header->header->header.headerSize));
2988    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
2989           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
2990        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
2991        if (err != NO_ERROR) {
2992            return (mError=err);
2993        }
2994        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
2995                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
2996                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
2997        const size_t csize = dtohl(chunk->size);
2998        const uint16_t ctype = dtohs(chunk->type);
2999        if (ctype == RES_STRING_POOL_TYPE) {
3000            if (header->values.getError() != NO_ERROR) {
3001                // Only use the first string chunk; ignore any others that
3002                // may appear.
3003                status_t err = header->values.setTo(chunk, csize);
3004                if (err != NO_ERROR) {
3005                    return (mError=err);
3006                }
3007            } else {
3008                ALOGW("Multiple string chunks found in resource table.");
3009            }
3010        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3011            if (curPackage >= dtohl(header->header->packageCount)) {
3012                ALOGW("More package chunks were found than the %d declared in the header.",
3013                     dtohl(header->header->packageCount));
3014                return (mError=BAD_TYPE);
3015            }
3016            uint32_t idmap_id = 0;
3017            if (idmap != NULL) {
3018                uint32_t tmp;
3019                if (getIdmapPackageId(header->resourceIDMap,
3020                                      header->resourceIDMapSize,
3021                                      &tmp) == NO_ERROR) {
3022                    idmap_id = tmp;
3023                }
3024            }
3025            if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
3026                return mError;
3027            }
3028            curPackage++;
3029        } else {
3030            ALOGW("Unknown chunk type %p in table at %p.\n",
3031                 (void*)(int)(ctype),
3032                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3033        }
3034        chunk = (const ResChunk_header*)
3035            (((const uint8_t*)chunk) + csize);
3036    }
3037
3038    if (curPackage < dtohl(header->header->packageCount)) {
3039        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3040             (int)curPackage, dtohl(header->header->packageCount));
3041        return (mError=BAD_TYPE);
3042    }
3043    mError = header->values.getError();
3044    if (mError != NO_ERROR) {
3045        ALOGW("No string values found in resource table!");
3046    }
3047
3048    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3049    return mError;
3050}
3051
3052status_t ResTable::getError() const
3053{
3054    return mError;
3055}
3056
3057void ResTable::uninit()
3058{
3059    mError = NO_INIT;
3060    size_t N = mPackageGroups.size();
3061    for (size_t i=0; i<N; i++) {
3062        PackageGroup* g = mPackageGroups[i];
3063        delete g;
3064    }
3065    N = mHeaders.size();
3066    for (size_t i=0; i<N; i++) {
3067        Header* header = mHeaders[i];
3068        if (header->owner == this) {
3069            if (header->ownedData) {
3070                free(header->ownedData);
3071            }
3072            delete header;
3073        }
3074    }
3075
3076    mPackageGroups.clear();
3077    mHeaders.clear();
3078}
3079
3080bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3081{
3082    if (mError != NO_ERROR) {
3083        return false;
3084    }
3085
3086    const ssize_t p = getResourcePackageIndex(resID);
3087    const int t = Res_GETTYPE(resID);
3088    const int e = Res_GETENTRY(resID);
3089
3090    if (p < 0) {
3091        if (Res_GETPACKAGE(resID)+1 == 0) {
3092            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3093        } else {
3094            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3095        }
3096        return false;
3097    }
3098    if (t < 0) {
3099        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3100        return false;
3101    }
3102
3103    const PackageGroup* const grp = mPackageGroups[p];
3104    if (grp == NULL) {
3105        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3106        return false;
3107    }
3108    if (grp->packages.size() > 0) {
3109        const Package* const package = grp->packages[0];
3110
3111        const ResTable_type* type;
3112        const ResTable_entry* entry;
3113        ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
3114        if (offset <= 0) {
3115            return false;
3116        }
3117
3118        outName->package = grp->name.string();
3119        outName->packageLen = grp->name.size();
3120        if (allowUtf8) {
3121            outName->type8 = grp->basePackage->typeStrings.string8At(t, &outName->typeLen);
3122            outName->name8 = grp->basePackage->keyStrings.string8At(
3123                dtohl(entry->key.index), &outName->nameLen);
3124        } else {
3125            outName->type8 = NULL;
3126            outName->name8 = NULL;
3127        }
3128        if (outName->type8 == NULL) {
3129            outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
3130            // If we have a bad index for some reason, we should abort.
3131            if (outName->type == NULL) {
3132                return false;
3133            }
3134        }
3135        if (outName->name8 == NULL) {
3136            outName->name = grp->basePackage->keyStrings.stringAt(
3137                dtohl(entry->key.index), &outName->nameLen);
3138            // If we have a bad index for some reason, we should abort.
3139            if (outName->name == NULL) {
3140                return false;
3141            }
3142        }
3143
3144        return true;
3145    }
3146
3147    return false;
3148}
3149
3150ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3151        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3152{
3153    if (mError != NO_ERROR) {
3154        return mError;
3155    }
3156
3157    const ssize_t p = getResourcePackageIndex(resID);
3158    const int t = Res_GETTYPE(resID);
3159    const int e = Res_GETENTRY(resID);
3160
3161    if (p < 0) {
3162        if (Res_GETPACKAGE(resID)+1 == 0) {
3163            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3164        } else {
3165            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3166        }
3167        return BAD_INDEX;
3168    }
3169    if (t < 0) {
3170        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3171        return BAD_INDEX;
3172    }
3173
3174    const Res_value* bestValue = NULL;
3175    const Package* bestPackage = NULL;
3176    ResTable_config bestItem;
3177    memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
3178
3179    if (outSpecFlags != NULL) *outSpecFlags = 0;
3180
3181    // Look through all resource packages, starting with the most
3182    // recently added.
3183    const PackageGroup* const grp = mPackageGroups[p];
3184    if (grp == NULL) {
3185        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3186        return BAD_INDEX;
3187    }
3188
3189    // Allow overriding density
3190    const ResTable_config* desiredConfig = &mParams;
3191    ResTable_config* overrideConfig = NULL;
3192    if (density > 0) {
3193        overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
3194        if (overrideConfig == NULL) {
3195            ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3196            return BAD_INDEX;
3197        }
3198        memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3199        overrideConfig->density = density;
3200        desiredConfig = overrideConfig;
3201    }
3202
3203    ssize_t rc = BAD_VALUE;
3204    size_t ip = grp->packages.size();
3205    while (ip > 0) {
3206        ip--;
3207        int T = t;
3208        int E = e;
3209
3210        const Package* const package = grp->packages[ip];
3211        if (package->header->resourceIDMap) {
3212            uint32_t overlayResID = 0x0;
3213            status_t retval = idmapLookup(package->header->resourceIDMap,
3214                                          package->header->resourceIDMapSize,
3215                                          resID, &overlayResID);
3216            if (retval == NO_ERROR && overlayResID != 0x0) {
3217                // for this loop iteration, this is the type and entry we really want
3218                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3219                T = Res_GETTYPE(overlayResID);
3220                E = Res_GETENTRY(overlayResID);
3221            } else {
3222                // resource not present in overlay package, continue with the next package
3223                continue;
3224            }
3225        }
3226
3227        const ResTable_type* type;
3228        const ResTable_entry* entry;
3229        const Type* typeClass;
3230        ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3231        if (offset <= 0) {
3232            // No {entry, appropriate config} pair found in package. If this
3233            // package is an overlay package (ip != 0), this simply means the
3234            // overlay package did not specify a default.
3235            // Non-overlay packages are still required to provide a default.
3236            if (offset < 0 && ip == 0) {
3237                ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3238                        resID, T, E, ip, (int)offset);
3239                rc = offset;
3240                goto out;
3241            }
3242            continue;
3243        }
3244
3245        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3246            if (!mayBeBag) {
3247                ALOGW("Requesting resource %p failed because it is complex\n",
3248                     (void*)resID);
3249            }
3250            continue;
3251        }
3252
3253        TABLE_NOISY(aout << "Resource type data: "
3254              << HexDump(type, dtohl(type->header.size)) << endl);
3255
3256        if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3257            ALOGW("ResTable_item at %d is beyond type chunk data %d",
3258                 (int)offset, dtohl(type->header.size));
3259            rc = BAD_TYPE;
3260            goto out;
3261        }
3262
3263        const Res_value* item =
3264            (const Res_value*)(((const uint8_t*)type) + offset);
3265        ResTable_config thisConfig;
3266        thisConfig.copyFromDtoH(type->config);
3267
3268        if (outSpecFlags != NULL) {
3269            if (typeClass->typeSpecFlags != NULL) {
3270                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3271            } else {
3272                *outSpecFlags = -1;
3273            }
3274        }
3275
3276        if (bestPackage != NULL &&
3277            (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3278            // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3279            // are identical (diff == 0), or overlay packages will not take effect.
3280            continue;
3281        }
3282
3283        bestItem = thisConfig;
3284        bestValue = item;
3285        bestPackage = package;
3286    }
3287
3288    TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3289
3290    if (bestValue) {
3291        outValue->size = dtohs(bestValue->size);
3292        outValue->res0 = bestValue->res0;
3293        outValue->dataType = bestValue->dataType;
3294        outValue->data = dtohl(bestValue->data);
3295        if (outConfig != NULL) {
3296            *outConfig = bestItem;
3297        }
3298        TABLE_NOISY(size_t len;
3299              printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3300                     bestPackage->header->index,
3301                     outValue->dataType,
3302                     outValue->dataType == bestValue->TYPE_STRING
3303                     ? String8(bestPackage->header->values.stringAt(
3304                         outValue->data, &len)).string()
3305                     : "",
3306                     outValue->data));
3307        rc = bestPackage->header->index;
3308        goto out;
3309    }
3310
3311out:
3312    if (overrideConfig != NULL) {
3313        free(overrideConfig);
3314    }
3315
3316    return rc;
3317}
3318
3319ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3320        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3321        ResTable_config* outConfig) const
3322{
3323    int count=0;
3324    while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
3325           && value->data != 0 && count < 20) {
3326        if (outLastRef) *outLastRef = value->data;
3327        uint32_t lastRef = value->data;
3328        uint32_t newFlags = 0;
3329        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3330                outConfig);
3331        if (newIndex == BAD_INDEX) {
3332            return BAD_INDEX;
3333        }
3334        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3335             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3336        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3337        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3338        if (newIndex < 0) {
3339            // This can fail if the resource being referenced is a style...
3340            // in this case, just return the reference, and expect the
3341            // caller to deal with.
3342            return blockIndex;
3343        }
3344        blockIndex = newIndex;
3345        count++;
3346    }
3347    return blockIndex;
3348}
3349
3350const char16_t* ResTable::valueToString(
3351    const Res_value* value, size_t stringBlock,
3352    char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
3353{
3354    if (!value) {
3355        return NULL;
3356    }
3357    if (value->dataType == value->TYPE_STRING) {
3358        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3359    }
3360    // XXX do int to string conversions.
3361    return NULL;
3362}
3363
3364ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3365{
3366    mLock.lock();
3367    ssize_t err = getBagLocked(resID, outBag);
3368    if (err < NO_ERROR) {
3369        //printf("*** get failed!  unlocking\n");
3370        mLock.unlock();
3371    }
3372    return err;
3373}
3374
3375void ResTable::unlockBag(const bag_entry* bag) const
3376{
3377    //printf("<<< unlockBag %p\n", this);
3378    mLock.unlock();
3379}
3380
3381void ResTable::lock() const
3382{
3383    mLock.lock();
3384}
3385
3386void ResTable::unlock() const
3387{
3388    mLock.unlock();
3389}
3390
3391ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3392        uint32_t* outTypeSpecFlags) const
3393{
3394    if (mError != NO_ERROR) {
3395        return mError;
3396    }
3397
3398    const ssize_t p = getResourcePackageIndex(resID);
3399    const int t = Res_GETTYPE(resID);
3400    const int e = Res_GETENTRY(resID);
3401
3402    if (p < 0) {
3403        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3404        return BAD_INDEX;
3405    }
3406    if (t < 0) {
3407        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3408        return BAD_INDEX;
3409    }
3410
3411    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3412    PackageGroup* const grp = mPackageGroups[p];
3413    if (grp == NULL) {
3414        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3415        return false;
3416    }
3417
3418    if (t >= (int)grp->typeCount) {
3419        ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3420             t+1, (int)grp->typeCount);
3421        return BAD_INDEX;
3422    }
3423
3424    const Package* const basePackage = grp->packages[0];
3425
3426    const Type* const typeConfigs = basePackage->getType(t);
3427
3428    const size_t NENTRY = typeConfigs->entryCount;
3429    if (e >= (int)NENTRY) {
3430        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3431             e, (int)typeConfigs->entryCount);
3432        return BAD_INDEX;
3433    }
3434
3435    // First see if we've already computed this bag...
3436    if (grp->bags) {
3437        bag_set** typeSet = grp->bags[t];
3438        if (typeSet) {
3439            bag_set* set = typeSet[e];
3440            if (set) {
3441                if (set != (bag_set*)0xFFFFFFFF) {
3442                    if (outTypeSpecFlags != NULL) {
3443                        *outTypeSpecFlags = set->typeSpecFlags;
3444                    }
3445                    *outBag = (bag_entry*)(set+1);
3446                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3447                    return set->numAttrs;
3448                }
3449                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3450                     resID);
3451                return BAD_INDEX;
3452            }
3453        }
3454    }
3455
3456    // Bag not found, we need to compute it!
3457    if (!grp->bags) {
3458        grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3459        if (!grp->bags) return NO_MEMORY;
3460    }
3461
3462    bag_set** typeSet = grp->bags[t];
3463    if (!typeSet) {
3464        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3465        if (!typeSet) return NO_MEMORY;
3466        grp->bags[t] = typeSet;
3467    }
3468
3469    // Mark that we are currently working on this one.
3470    typeSet[e] = (bag_set*)0xFFFFFFFF;
3471
3472    // This is what we are building.
3473    bag_set* set = NULL;
3474
3475    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3476
3477    ResTable_config bestConfig;
3478    memset(&bestConfig, 0, sizeof(bestConfig));
3479
3480    // Now collect all bag attributes from all packages.
3481    size_t ip = grp->packages.size();
3482    while (ip > 0) {
3483        ip--;
3484        int T = t;
3485        int E = e;
3486
3487        const Package* const package = grp->packages[ip];
3488        if (package->header->resourceIDMap) {
3489            uint32_t overlayResID = 0x0;
3490            status_t retval = idmapLookup(package->header->resourceIDMap,
3491                                          package->header->resourceIDMapSize,
3492                                          resID, &overlayResID);
3493            if (retval == NO_ERROR && overlayResID != 0x0) {
3494                // for this loop iteration, this is the type and entry we really want
3495                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3496                T = Res_GETTYPE(overlayResID);
3497                E = Res_GETENTRY(overlayResID);
3498            } else {
3499                // resource not present in overlay package, continue with the next package
3500                continue;
3501            }
3502        }
3503
3504        const ResTable_type* type;
3505        const ResTable_entry* entry;
3506        const Type* typeClass;
3507        ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3508        ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3509        ALOGV("Resulting offset=%d\n", offset);
3510        if (offset <= 0) {
3511            // No {entry, appropriate config} pair found in package. If this
3512            // package is an overlay package (ip != 0), this simply means the
3513            // overlay package did not specify a default.
3514            // Non-overlay packages are still required to provide a default.
3515            if (offset < 0 && ip == 0) {
3516                if (set) free(set);
3517                return offset;
3518            }
3519            continue;
3520        }
3521
3522        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3523            ALOGW("Skipping entry %p in package table %d because it is not complex!\n",
3524                 (void*)resID, (int)ip);
3525            continue;
3526        }
3527
3528        if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3529            continue;
3530        }
3531        bestConfig = type->config;
3532        if (set) {
3533            free(set);
3534            set = NULL;
3535        }
3536
3537        const uint16_t entrySize = dtohs(entry->size);
3538        const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3539            ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3540        const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3541            ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3542
3543        size_t N = count;
3544
3545        TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3546                         entrySize, parent, count));
3547
3548        // If this map inherits from another, we need to start
3549        // with its parent's values.  Otherwise start out empty.
3550        TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3551                           entrySize, parent));
3552        if (parent) {
3553            const bag_entry* parentBag;
3554            uint32_t parentTypeSpecFlags = 0;
3555            const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
3556            const size_t NT = ((NP >= 0) ? NP : 0) + N;
3557            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3558            if (set == NULL) {
3559                return NO_MEMORY;
3560            }
3561            if (NP > 0) {
3562                memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3563                set->numAttrs = NP;
3564                TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3565            } else {
3566                TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3567                set->numAttrs = 0;
3568            }
3569            set->availAttrs = NT;
3570            set->typeSpecFlags = parentTypeSpecFlags;
3571        } else {
3572            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3573            if (set == NULL) {
3574                return NO_MEMORY;
3575            }
3576            set->numAttrs = 0;
3577            set->availAttrs = N;
3578            set->typeSpecFlags = 0;
3579        }
3580
3581        if (typeClass->typeSpecFlags != NULL) {
3582            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3583        } else {
3584            set->typeSpecFlags = -1;
3585        }
3586
3587        // Now merge in the new attributes...
3588        ssize_t curOff = offset;
3589        const ResTable_map* map;
3590        bag_entry* entries = (bag_entry*)(set+1);
3591        size_t curEntry = 0;
3592        uint32_t pos = 0;
3593        TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3594                     set, entries, set->availAttrs));
3595        while (pos < count) {
3596            TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3597
3598            if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3599                ALOGW("ResTable_map at %d is beyond type chunk data %d",
3600                     (int)curOff, dtohl(type->header.size));
3601                return BAD_TYPE;
3602            }
3603            map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3604            N++;
3605
3606            const uint32_t newName = htodl(map->name.ident);
3607            bool isInside;
3608            uint32_t oldName = 0;
3609            while ((isInside=(curEntry < set->numAttrs))
3610                    && (oldName=entries[curEntry].map.name.ident) < newName) {
3611                TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3612                             curEntry, entries[curEntry].map.name.ident));
3613                curEntry++;
3614            }
3615
3616            if ((!isInside) || oldName != newName) {
3617                // This is a new attribute...  figure out what to do with it.
3618                if (set->numAttrs >= set->availAttrs) {
3619                    // Need to alloc more memory...
3620                    const size_t newAvail = set->availAttrs+N;
3621                    set = (bag_set*)realloc(set,
3622                                            sizeof(bag_set)
3623                                            + sizeof(bag_entry)*newAvail);
3624                    if (set == NULL) {
3625                        return NO_MEMORY;
3626                    }
3627                    set->availAttrs = newAvail;
3628                    entries = (bag_entry*)(set+1);
3629                    TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3630                                 set, entries, set->availAttrs));
3631                }
3632                if (isInside) {
3633                    // Going in the middle, need to make space.
3634                    memmove(entries+curEntry+1, entries+curEntry,
3635                            sizeof(bag_entry)*(set->numAttrs-curEntry));
3636                    set->numAttrs++;
3637                }
3638                TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3639                             curEntry, newName));
3640            } else {
3641                TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3642                             curEntry, oldName));
3643            }
3644
3645            bag_entry* cur = entries+curEntry;
3646
3647            cur->stringBlock = package->header->index;
3648            cur->map.name.ident = newName;
3649            cur->map.value.copyFrom_dtoh(map->value);
3650            TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3651                         curEntry, cur, cur->stringBlock, cur->map.name.ident,
3652                         cur->map.value.dataType, cur->map.value.data));
3653
3654            // On to the next!
3655            curEntry++;
3656            pos++;
3657            const size_t size = dtohs(map->value.size);
3658            curOff += size + sizeof(*map)-sizeof(map->value);
3659        };
3660        if (curEntry > set->numAttrs) {
3661            set->numAttrs = curEntry;
3662        }
3663    }
3664
3665    // And this is it...
3666    typeSet[e] = set;
3667    if (set) {
3668        if (outTypeSpecFlags != NULL) {
3669            *outTypeSpecFlags = set->typeSpecFlags;
3670        }
3671        *outBag = (bag_entry*)(set+1);
3672        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3673        return set->numAttrs;
3674    }
3675    return BAD_INDEX;
3676}
3677
3678void ResTable::setParameters(const ResTable_config* params)
3679{
3680    mLock.lock();
3681    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3682    mParams = *params;
3683    for (size_t i=0; i<mPackageGroups.size(); i++) {
3684        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3685        mPackageGroups[i]->clearBagCache();
3686    }
3687    mLock.unlock();
3688}
3689
3690void ResTable::getParameters(ResTable_config* params) const
3691{
3692    mLock.lock();
3693    *params = mParams;
3694    mLock.unlock();
3695}
3696
3697struct id_name_map {
3698    uint32_t id;
3699    size_t len;
3700    char16_t name[6];
3701};
3702
3703const static id_name_map ID_NAMES[] = {
3704    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
3705    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
3706    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
3707    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
3708    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
3709    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
3710    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
3711    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
3712    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
3713    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
3714};
3715
3716uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
3717                                     const char16_t* type, size_t typeLen,
3718                                     const char16_t* package,
3719                                     size_t packageLen,
3720                                     uint32_t* outTypeSpecFlags) const
3721{
3722    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
3723
3724    // Check for internal resource identifier as the very first thing, so
3725    // that we will always find them even when there are no resources.
3726    if (name[0] == '^') {
3727        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
3728        size_t len;
3729        for (int i=0; i<N; i++) {
3730            const id_name_map* m = ID_NAMES + i;
3731            len = m->len;
3732            if (len != nameLen) {
3733                continue;
3734            }
3735            for (size_t j=1; j<len; j++) {
3736                if (m->name[j] != name[j]) {
3737                    goto nope;
3738                }
3739            }
3740            if (outTypeSpecFlags) {
3741                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3742            }
3743            return m->id;
3744nope:
3745            ;
3746        }
3747        if (nameLen > 7) {
3748            if (name[1] == 'i' && name[2] == 'n'
3749                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
3750                && name[6] == '_') {
3751                int index = atoi(String8(name + 7, nameLen - 7).string());
3752                if (Res_CHECKID(index)) {
3753                    ALOGW("Array resource index: %d is too large.",
3754                         index);
3755                    return 0;
3756                }
3757                if (outTypeSpecFlags) {
3758                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3759                }
3760                return  Res_MAKEARRAY(index);
3761            }
3762        }
3763        return 0;
3764    }
3765
3766    if (mError != NO_ERROR) {
3767        return 0;
3768    }
3769
3770    bool fakePublic = false;
3771
3772    // Figure out the package and type we are looking in...
3773
3774    const char16_t* packageEnd = NULL;
3775    const char16_t* typeEnd = NULL;
3776    const char16_t* const nameEnd = name+nameLen;
3777    const char16_t* p = name;
3778    while (p < nameEnd) {
3779        if (*p == ':') packageEnd = p;
3780        else if (*p == '/') typeEnd = p;
3781        p++;
3782    }
3783    if (*name == '@') {
3784        name++;
3785        if (*name == '*') {
3786            fakePublic = true;
3787            name++;
3788        }
3789    }
3790    if (name >= nameEnd) {
3791        return 0;
3792    }
3793
3794    if (packageEnd) {
3795        package = name;
3796        packageLen = packageEnd-name;
3797        name = packageEnd+1;
3798    } else if (!package) {
3799        return 0;
3800    }
3801
3802    if (typeEnd) {
3803        type = name;
3804        typeLen = typeEnd-name;
3805        name = typeEnd+1;
3806    } else if (!type) {
3807        return 0;
3808    }
3809
3810    if (name >= nameEnd) {
3811        return 0;
3812    }
3813    nameLen = nameEnd-name;
3814
3815    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
3816                 String8(type, typeLen).string(),
3817                 String8(name, nameLen).string(),
3818                 String8(package, packageLen).string()));
3819
3820    const size_t NG = mPackageGroups.size();
3821    for (size_t ig=0; ig<NG; ig++) {
3822        const PackageGroup* group = mPackageGroups[ig];
3823
3824        if (strzcmp16(package, packageLen,
3825                      group->name.string(), group->name.size())) {
3826            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
3827            continue;
3828        }
3829
3830        const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
3831        if (ti < 0) {
3832            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
3833            continue;
3834        }
3835
3836        const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
3837        if (ei < 0) {
3838            TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
3839            continue;
3840        }
3841
3842        TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
3843
3844        const Type* const typeConfigs = group->packages[0]->getType(ti);
3845        if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
3846            TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
3847                               String8(group->name).string(), ti));
3848        }
3849
3850        size_t NTC = typeConfigs->configs.size();
3851        for (size_t tci=0; tci<NTC; tci++) {
3852            const ResTable_type* const ty = typeConfigs->configs[tci];
3853            const uint32_t typeOffset = dtohl(ty->entriesStart);
3854
3855            const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
3856            const uint32_t* const eindex = (const uint32_t*)
3857                (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
3858
3859            const size_t NE = dtohl(ty->entryCount);
3860            for (size_t i=0; i<NE; i++) {
3861                uint32_t offset = dtohl(eindex[i]);
3862                if (offset == ResTable_type::NO_ENTRY) {
3863                    continue;
3864                }
3865
3866                offset += typeOffset;
3867
3868                if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
3869                    ALOGW("ResTable_entry at %d is beyond type chunk data %d",
3870                         offset, dtohl(ty->header.size));
3871                    return 0;
3872                }
3873                if ((offset&0x3) != 0) {
3874                    ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
3875                         (int)offset, (int)group->id, (int)ti+1, (int)i,
3876                         String8(package, packageLen).string(),
3877                         String8(type, typeLen).string(),
3878                         String8(name, nameLen).string());
3879                    return 0;
3880                }
3881
3882                const ResTable_entry* const entry = (const ResTable_entry*)
3883                    (((const uint8_t*)ty) + offset);
3884                if (dtohs(entry->size) < sizeof(*entry)) {
3885                    ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
3886                    return BAD_TYPE;
3887                }
3888
3889                TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
3890                                         i, ei, dtohl(entry->key.index)));
3891                if (dtohl(entry->key.index) == (size_t)ei) {
3892                    if (outTypeSpecFlags) {
3893                        *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
3894                        if (fakePublic) {
3895                            *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
3896                        }
3897                    }
3898                    return Res_MAKEID(group->id-1, ti, i);
3899                }
3900            }
3901        }
3902    }
3903
3904    return 0;
3905}
3906
3907bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
3908                                 String16* outPackage,
3909                                 String16* outType,
3910                                 String16* outName,
3911                                 const String16* defType,
3912                                 const String16* defPackage,
3913                                 const char** outErrorMsg,
3914                                 bool* outPublicOnly)
3915{
3916    const char16_t* packageEnd = NULL;
3917    const char16_t* typeEnd = NULL;
3918    const char16_t* p = refStr;
3919    const char16_t* const end = p + refLen;
3920    while (p < end) {
3921        if (*p == ':') packageEnd = p;
3922        else if (*p == '/') {
3923            typeEnd = p;
3924            break;
3925        }
3926        p++;
3927    }
3928    p = refStr;
3929    if (*p == '@') p++;
3930
3931    if (outPublicOnly != NULL) {
3932        *outPublicOnly = true;
3933    }
3934    if (*p == '*') {
3935        p++;
3936        if (outPublicOnly != NULL) {
3937            *outPublicOnly = false;
3938        }
3939    }
3940
3941    if (packageEnd) {
3942        *outPackage = String16(p, packageEnd-p);
3943        p = packageEnd+1;
3944    } else {
3945        if (!defPackage) {
3946            if (outErrorMsg) {
3947                *outErrorMsg = "No resource package specified";
3948            }
3949            return false;
3950        }
3951        *outPackage = *defPackage;
3952    }
3953    if (typeEnd) {
3954        *outType = String16(p, typeEnd-p);
3955        p = typeEnd+1;
3956    } else {
3957        if (!defType) {
3958            if (outErrorMsg) {
3959                *outErrorMsg = "No resource type specified";
3960            }
3961            return false;
3962        }
3963        *outType = *defType;
3964    }
3965    *outName = String16(p, end-p);
3966    if(**outPackage == 0) {
3967        if(outErrorMsg) {
3968            *outErrorMsg = "Resource package cannot be an empty string";
3969        }
3970        return false;
3971    }
3972    if(**outType == 0) {
3973        if(outErrorMsg) {
3974            *outErrorMsg = "Resource type cannot be an empty string";
3975        }
3976        return false;
3977    }
3978    if(**outName == 0) {
3979        if(outErrorMsg) {
3980            *outErrorMsg = "Resource id cannot be an empty string";
3981        }
3982        return false;
3983    }
3984    return true;
3985}
3986
3987static uint32_t get_hex(char c, bool* outError)
3988{
3989    if (c >= '0' && c <= '9') {
3990        return c - '0';
3991    } else if (c >= 'a' && c <= 'f') {
3992        return c - 'a' + 0xa;
3993    } else if (c >= 'A' && c <= 'F') {
3994        return c - 'A' + 0xa;
3995    }
3996    *outError = true;
3997    return 0;
3998}
3999
4000struct unit_entry
4001{
4002    const char* name;
4003    size_t len;
4004    uint8_t type;
4005    uint32_t unit;
4006    float scale;
4007};
4008
4009static const unit_entry unitNames[] = {
4010    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4011    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4012    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4013    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4014    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4015    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4016    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4017    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4018    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4019    { NULL, 0, 0, 0, 0 }
4020};
4021
4022static bool parse_unit(const char* str, Res_value* outValue,
4023                       float* outScale, const char** outEnd)
4024{
4025    const char* end = str;
4026    while (*end != 0 && !isspace((unsigned char)*end)) {
4027        end++;
4028    }
4029    const size_t len = end-str;
4030
4031    const char* realEnd = end;
4032    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4033        realEnd++;
4034    }
4035    if (*realEnd != 0) {
4036        return false;
4037    }
4038
4039    const unit_entry* cur = unitNames;
4040    while (cur->name) {
4041        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4042            outValue->dataType = cur->type;
4043            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4044            *outScale = cur->scale;
4045            *outEnd = end;
4046            //printf("Found unit %s for %s\n", cur->name, str);
4047            return true;
4048        }
4049        cur++;
4050    }
4051
4052    return false;
4053}
4054
4055
4056bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4057{
4058    while (len > 0 && isspace16(*s)) {
4059        s++;
4060        len--;
4061    }
4062
4063    if (len <= 0) {
4064        return false;
4065    }
4066
4067    size_t i = 0;
4068    int32_t val = 0;
4069    bool neg = false;
4070
4071    if (*s == '-') {
4072        neg = true;
4073        i++;
4074    }
4075
4076    if (s[i] < '0' || s[i] > '9') {
4077        return false;
4078    }
4079
4080    // Decimal or hex?
4081    if (s[i] == '0' && s[i+1] == 'x') {
4082        if (outValue)
4083            outValue->dataType = outValue->TYPE_INT_HEX;
4084        i += 2;
4085        bool error = false;
4086        while (i < len && !error) {
4087            val = (val*16) + get_hex(s[i], &error);
4088            i++;
4089        }
4090        if (error) {
4091            return false;
4092        }
4093    } else {
4094        if (outValue)
4095            outValue->dataType = outValue->TYPE_INT_DEC;
4096        while (i < len) {
4097            if (s[i] < '0' || s[i] > '9') {
4098                return false;
4099            }
4100            val = (val*10) + s[i]-'0';
4101            i++;
4102        }
4103    }
4104
4105    if (neg) val = -val;
4106
4107    while (i < len && isspace16(s[i])) {
4108        i++;
4109    }
4110
4111    if (i == len) {
4112        if (outValue)
4113            outValue->data = val;
4114        return true;
4115    }
4116
4117    return false;
4118}
4119
4120bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4121{
4122    while (len > 0 && isspace16(*s)) {
4123        s++;
4124        len--;
4125    }
4126
4127    if (len <= 0) {
4128        return false;
4129    }
4130
4131    char buf[128];
4132    int i=0;
4133    while (len > 0 && *s != 0 && i < 126) {
4134        if (*s > 255) {
4135            return false;
4136        }
4137        buf[i++] = *s++;
4138        len--;
4139    }
4140
4141    if (len > 0) {
4142        return false;
4143    }
4144    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4145        return false;
4146    }
4147
4148    buf[i] = 0;
4149    const char* end;
4150    float f = strtof(buf, (char**)&end);
4151
4152    if (*end != 0 && !isspace((unsigned char)*end)) {
4153        // Might be a unit...
4154        float scale;
4155        if (parse_unit(end, outValue, &scale, &end)) {
4156            f *= scale;
4157            const bool neg = f < 0;
4158            if (neg) f = -f;
4159            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4160            uint32_t radix;
4161            uint32_t shift;
4162            if ((bits&0x7fffff) == 0) {
4163                // Always use 23p0 if there is no fraction, just to make
4164                // things easier to read.
4165                radix = Res_value::COMPLEX_RADIX_23p0;
4166                shift = 23;
4167            } else if ((bits&0xffffffffff800000LL) == 0) {
4168                // Magnitude is zero -- can fit in 0 bits of precision.
4169                radix = Res_value::COMPLEX_RADIX_0p23;
4170                shift = 0;
4171            } else if ((bits&0xffffffff80000000LL) == 0) {
4172                // Magnitude can fit in 8 bits of precision.
4173                radix = Res_value::COMPLEX_RADIX_8p15;
4174                shift = 8;
4175            } else if ((bits&0xffffff8000000000LL) == 0) {
4176                // Magnitude can fit in 16 bits of precision.
4177                radix = Res_value::COMPLEX_RADIX_16p7;
4178                shift = 16;
4179            } else {
4180                // Magnitude needs entire range, so no fractional part.
4181                radix = Res_value::COMPLEX_RADIX_23p0;
4182                shift = 23;
4183            }
4184            int32_t mantissa = (int32_t)(
4185                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4186            if (neg) {
4187                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4188            }
4189            outValue->data |=
4190                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4191                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4192            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4193            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4194            //       radix, shift, outValue->data);
4195            return true;
4196        }
4197        return false;
4198    }
4199
4200    while (*end != 0 && isspace((unsigned char)*end)) {
4201        end++;
4202    }
4203
4204    if (*end == 0) {
4205        if (outValue) {
4206            outValue->dataType = outValue->TYPE_FLOAT;
4207            *(float*)(&outValue->data) = f;
4208            return true;
4209        }
4210    }
4211
4212    return false;
4213}
4214
4215bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4216                             const char16_t* s, size_t len,
4217                             bool preserveSpaces, bool coerceType,
4218                             uint32_t attrID,
4219                             const String16* defType,
4220                             const String16* defPackage,
4221                             Accessor* accessor,
4222                             void* accessorCookie,
4223                             uint32_t attrType,
4224                             bool enforcePrivate) const
4225{
4226    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4227    const char* errorMsg = NULL;
4228
4229    outValue->size = sizeof(Res_value);
4230    outValue->res0 = 0;
4231
4232    // First strip leading/trailing whitespace.  Do this before handling
4233    // escapes, so they can be used to force whitespace into the string.
4234    if (!preserveSpaces) {
4235        while (len > 0 && isspace16(*s)) {
4236            s++;
4237            len--;
4238        }
4239        while (len > 0 && isspace16(s[len-1])) {
4240            len--;
4241        }
4242        // If the string ends with '\', then we keep the space after it.
4243        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4244            len++;
4245        }
4246    }
4247
4248    //printf("Value for: %s\n", String8(s, len).string());
4249
4250    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4251    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4252    bool fromAccessor = false;
4253    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4254        const ssize_t p = getResourcePackageIndex(attrID);
4255        const bag_entry* bag;
4256        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4257        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4258        if (cnt >= 0) {
4259            while (cnt > 0) {
4260                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4261                switch (bag->map.name.ident) {
4262                case ResTable_map::ATTR_TYPE:
4263                    attrType = bag->map.value.data;
4264                    break;
4265                case ResTable_map::ATTR_MIN:
4266                    attrMin = bag->map.value.data;
4267                    break;
4268                case ResTable_map::ATTR_MAX:
4269                    attrMax = bag->map.value.data;
4270                    break;
4271                case ResTable_map::ATTR_L10N:
4272                    l10nReq = bag->map.value.data;
4273                    break;
4274                }
4275                bag++;
4276                cnt--;
4277            }
4278            unlockBag(bag);
4279        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4280            fromAccessor = true;
4281            if (attrType == ResTable_map::TYPE_ENUM
4282                    || attrType == ResTable_map::TYPE_FLAGS
4283                    || attrType == ResTable_map::TYPE_INTEGER) {
4284                accessor->getAttributeMin(attrID, &attrMin);
4285                accessor->getAttributeMax(attrID, &attrMax);
4286            }
4287            if (localizationSetting) {
4288                l10nReq = accessor->getAttributeL10N(attrID);
4289            }
4290        }
4291    }
4292
4293    const bool canStringCoerce =
4294        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4295
4296    if (*s == '@') {
4297        outValue->dataType = outValue->TYPE_REFERENCE;
4298
4299        // Note: we don't check attrType here because the reference can
4300        // be to any other type; we just need to count on the client making
4301        // sure the referenced type is correct.
4302
4303        //printf("Looking up ref: %s\n", String8(s, len).string());
4304
4305        // It's a reference!
4306        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4307            outValue->data = 0;
4308            return true;
4309        } else {
4310            bool createIfNotFound = false;
4311            const char16_t* resourceRefName;
4312            int resourceNameLen;
4313            if (len > 2 && s[1] == '+') {
4314                createIfNotFound = true;
4315                resourceRefName = s + 2;
4316                resourceNameLen = len - 2;
4317            } else if (len > 2 && s[1] == '*') {
4318                enforcePrivate = false;
4319                resourceRefName = s + 2;
4320                resourceNameLen = len - 2;
4321            } else {
4322                createIfNotFound = false;
4323                resourceRefName = s + 1;
4324                resourceNameLen = len - 1;
4325            }
4326            String16 package, type, name;
4327            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4328                                   defType, defPackage, &errorMsg)) {
4329                if (accessor != NULL) {
4330                    accessor->reportError(accessorCookie, errorMsg);
4331                }
4332                return false;
4333            }
4334
4335            uint32_t specFlags = 0;
4336            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4337                    type.size(), package.string(), package.size(), &specFlags);
4338            if (rid != 0) {
4339                if (enforcePrivate) {
4340                    if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4341                        if (accessor != NULL) {
4342                            accessor->reportError(accessorCookie, "Resource is not public.");
4343                        }
4344                        return false;
4345                    }
4346                }
4347                if (!accessor) {
4348                    outValue->data = rid;
4349                    return true;
4350                }
4351                rid = Res_MAKEID(
4352                    accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4353                    Res_GETTYPE(rid), Res_GETENTRY(rid));
4354                TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4355                       String8(package).string(), String8(type).string(),
4356                       String8(name).string(), rid));
4357                outValue->data = rid;
4358                return true;
4359            }
4360
4361            if (accessor) {
4362                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4363                                                                       createIfNotFound);
4364                if (rid != 0) {
4365                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4366                           String8(package).string(), String8(type).string(),
4367                           String8(name).string(), rid));
4368                    outValue->data = rid;
4369                    return true;
4370                }
4371            }
4372        }
4373
4374        if (accessor != NULL) {
4375            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4376        }
4377        return false;
4378    }
4379
4380    // if we got to here, and localization is required and it's not a reference,
4381    // complain and bail.
4382    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4383        if (localizationSetting) {
4384            if (accessor != NULL) {
4385                accessor->reportError(accessorCookie, "This attribute must be localized.");
4386            }
4387        }
4388    }
4389
4390    if (*s == '#') {
4391        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4392        uint32_t color = 0;
4393        bool error = false;
4394        if (len == 4) {
4395            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4396            color |= 0xFF000000;
4397            color |= get_hex(s[1], &error) << 20;
4398            color |= get_hex(s[1], &error) << 16;
4399            color |= get_hex(s[2], &error) << 12;
4400            color |= get_hex(s[2], &error) << 8;
4401            color |= get_hex(s[3], &error) << 4;
4402            color |= get_hex(s[3], &error);
4403        } else if (len == 5) {
4404            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4405            color |= get_hex(s[1], &error) << 28;
4406            color |= get_hex(s[1], &error) << 24;
4407            color |= get_hex(s[2], &error) << 20;
4408            color |= get_hex(s[2], &error) << 16;
4409            color |= get_hex(s[3], &error) << 12;
4410            color |= get_hex(s[3], &error) << 8;
4411            color |= get_hex(s[4], &error) << 4;
4412            color |= get_hex(s[4], &error);
4413        } else if (len == 7) {
4414            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4415            color |= 0xFF000000;
4416            color |= get_hex(s[1], &error) << 20;
4417            color |= get_hex(s[2], &error) << 16;
4418            color |= get_hex(s[3], &error) << 12;
4419            color |= get_hex(s[4], &error) << 8;
4420            color |= get_hex(s[5], &error) << 4;
4421            color |= get_hex(s[6], &error);
4422        } else if (len == 9) {
4423            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4424            color |= get_hex(s[1], &error) << 28;
4425            color |= get_hex(s[2], &error) << 24;
4426            color |= get_hex(s[3], &error) << 20;
4427            color |= get_hex(s[4], &error) << 16;
4428            color |= get_hex(s[5], &error) << 12;
4429            color |= get_hex(s[6], &error) << 8;
4430            color |= get_hex(s[7], &error) << 4;
4431            color |= get_hex(s[8], &error);
4432        } else {
4433            error = true;
4434        }
4435        if (!error) {
4436            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4437                if (!canStringCoerce) {
4438                    if (accessor != NULL) {
4439                        accessor->reportError(accessorCookie,
4440                                "Color types not allowed");
4441                    }
4442                    return false;
4443                }
4444            } else {
4445                outValue->data = color;
4446                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4447                return true;
4448            }
4449        } else {
4450            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4451                if (accessor != NULL) {
4452                    accessor->reportError(accessorCookie, "Color value not valid --"
4453                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4454                }
4455                #if 0
4456                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4457                        "Resource File", //(const char*)in->getPrintableSource(),
4458                        String8(*curTag).string(),
4459                        String8(s, len).string());
4460                #endif
4461                return false;
4462            }
4463        }
4464    }
4465
4466    if (*s == '?') {
4467        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4468
4469        // Note: we don't check attrType here because the reference can
4470        // be to any other type; we just need to count on the client making
4471        // sure the referenced type is correct.
4472
4473        //printf("Looking up attr: %s\n", String8(s, len).string());
4474
4475        static const String16 attr16("attr");
4476        String16 package, type, name;
4477        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4478                               &attr16, defPackage, &errorMsg)) {
4479            if (accessor != NULL) {
4480                accessor->reportError(accessorCookie, errorMsg);
4481            }
4482            return false;
4483        }
4484
4485        //printf("Pkg: %s, Type: %s, Name: %s\n",
4486        //       String8(package).string(), String8(type).string(),
4487        //       String8(name).string());
4488        uint32_t specFlags = 0;
4489        uint32_t rid =
4490            identifierForName(name.string(), name.size(),
4491                              type.string(), type.size(),
4492                              package.string(), package.size(), &specFlags);
4493        if (rid != 0) {
4494            if (enforcePrivate) {
4495                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4496                    if (accessor != NULL) {
4497                        accessor->reportError(accessorCookie, "Attribute is not public.");
4498                    }
4499                    return false;
4500                }
4501            }
4502            if (!accessor) {
4503                outValue->data = rid;
4504                return true;
4505            }
4506            rid = Res_MAKEID(
4507                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4508                Res_GETTYPE(rid), Res_GETENTRY(rid));
4509            //printf("Incl %s:%s/%s: 0x%08x\n",
4510            //       String8(package).string(), String8(type).string(),
4511            //       String8(name).string(), rid);
4512            outValue->data = rid;
4513            return true;
4514        }
4515
4516        if (accessor) {
4517            uint32_t rid = accessor->getCustomResource(package, type, name);
4518            if (rid != 0) {
4519                //printf("Mine %s:%s/%s: 0x%08x\n",
4520                //       String8(package).string(), String8(type).string(),
4521                //       String8(name).string(), rid);
4522                outValue->data = rid;
4523                return true;
4524            }
4525        }
4526
4527        if (accessor != NULL) {
4528            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4529        }
4530        return false;
4531    }
4532
4533    if (stringToInt(s, len, outValue)) {
4534        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4535            // If this type does not allow integers, but does allow floats,
4536            // fall through on this error case because the float type should
4537            // be able to accept any integer value.
4538            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4539                if (accessor != NULL) {
4540                    accessor->reportError(accessorCookie, "Integer types not allowed");
4541                }
4542                return false;
4543            }
4544        } else {
4545            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4546                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4547                if (accessor != NULL) {
4548                    accessor->reportError(accessorCookie, "Integer value out of range");
4549                }
4550                return false;
4551            }
4552            return true;
4553        }
4554    }
4555
4556    if (stringToFloat(s, len, outValue)) {
4557        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4558            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4559                return true;
4560            }
4561            if (!canStringCoerce) {
4562                if (accessor != NULL) {
4563                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4564                }
4565                return false;
4566            }
4567        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4568            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4569                return true;
4570            }
4571            if (!canStringCoerce) {
4572                if (accessor != NULL) {
4573                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4574                }
4575                return false;
4576            }
4577        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4578            if (!canStringCoerce) {
4579                if (accessor != NULL) {
4580                    accessor->reportError(accessorCookie, "Float types not allowed");
4581                }
4582                return false;
4583            }
4584        } else {
4585            return true;
4586        }
4587    }
4588
4589    if (len == 4) {
4590        if ((s[0] == 't' || s[0] == 'T') &&
4591            (s[1] == 'r' || s[1] == 'R') &&
4592            (s[2] == 'u' || s[2] == 'U') &&
4593            (s[3] == 'e' || s[3] == 'E')) {
4594            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4595                if (!canStringCoerce) {
4596                    if (accessor != NULL) {
4597                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4598                    }
4599                    return false;
4600                }
4601            } else {
4602                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4603                outValue->data = (uint32_t)-1;
4604                return true;
4605            }
4606        }
4607    }
4608
4609    if (len == 5) {
4610        if ((s[0] == 'f' || s[0] == 'F') &&
4611            (s[1] == 'a' || s[1] == 'A') &&
4612            (s[2] == 'l' || s[2] == 'L') &&
4613            (s[3] == 's' || s[3] == 'S') &&
4614            (s[4] == 'e' || s[4] == 'E')) {
4615            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4616                if (!canStringCoerce) {
4617                    if (accessor != NULL) {
4618                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4619                    }
4620                    return false;
4621                }
4622            } else {
4623                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4624                outValue->data = 0;
4625                return true;
4626            }
4627        }
4628    }
4629
4630    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4631        const ssize_t p = getResourcePackageIndex(attrID);
4632        const bag_entry* bag;
4633        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4634        //printf("Got %d for enum\n", cnt);
4635        if (cnt >= 0) {
4636            resource_name rname;
4637            while (cnt > 0) {
4638                if (!Res_INTERNALID(bag->map.name.ident)) {
4639                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4640                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4641                        #if 0
4642                        printf("Matching %s against %s (0x%08x)\n",
4643                               String8(s, len).string(),
4644                               String8(rname.name, rname.nameLen).string(),
4645                               bag->map.name.ident);
4646                        #endif
4647                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4648                            outValue->dataType = bag->map.value.dataType;
4649                            outValue->data = bag->map.value.data;
4650                            unlockBag(bag);
4651                            return true;
4652                        }
4653                    }
4654
4655                }
4656                bag++;
4657                cnt--;
4658            }
4659            unlockBag(bag);
4660        }
4661
4662        if (fromAccessor) {
4663            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4664                return true;
4665            }
4666        }
4667    }
4668
4669    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4670        const ssize_t p = getResourcePackageIndex(attrID);
4671        const bag_entry* bag;
4672        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4673        //printf("Got %d for flags\n", cnt);
4674        if (cnt >= 0) {
4675            bool failed = false;
4676            resource_name rname;
4677            outValue->dataType = Res_value::TYPE_INT_HEX;
4678            outValue->data = 0;
4679            const char16_t* end = s + len;
4680            const char16_t* pos = s;
4681            while (pos < end && !failed) {
4682                const char16_t* start = pos;
4683                pos++;
4684                while (pos < end && *pos != '|') {
4685                    pos++;
4686                }
4687                //printf("Looking for: %s\n", String8(start, pos-start).string());
4688                const bag_entry* bagi = bag;
4689                ssize_t i;
4690                for (i=0; i<cnt; i++, bagi++) {
4691                    if (!Res_INTERNALID(bagi->map.name.ident)) {
4692                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
4693                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
4694                            #if 0
4695                            printf("Matching %s against %s (0x%08x)\n",
4696                                   String8(start,pos-start).string(),
4697                                   String8(rname.name, rname.nameLen).string(),
4698                                   bagi->map.name.ident);
4699                            #endif
4700                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4701                                outValue->data |= bagi->map.value.data;
4702                                break;
4703                            }
4704                        }
4705                    }
4706                }
4707                if (i >= cnt) {
4708                    // Didn't find this flag identifier.
4709                    failed = true;
4710                }
4711                if (pos < end) {
4712                    pos++;
4713                }
4714            }
4715            unlockBag(bag);
4716            if (!failed) {
4717                //printf("Final flag value: 0x%lx\n", outValue->data);
4718                return true;
4719            }
4720        }
4721
4722
4723        if (fromAccessor) {
4724            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
4725                //printf("Final flag value: 0x%lx\n", outValue->data);
4726                return true;
4727            }
4728        }
4729    }
4730
4731    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
4732        if (accessor != NULL) {
4733            accessor->reportError(accessorCookie, "String types not allowed");
4734        }
4735        return false;
4736    }
4737
4738    // Generic string handling...
4739    outValue->dataType = outValue->TYPE_STRING;
4740    if (outString) {
4741        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
4742        if (accessor != NULL) {
4743            accessor->reportError(accessorCookie, errorMsg);
4744        }
4745        return failed;
4746    }
4747
4748    return true;
4749}
4750
4751bool ResTable::collectString(String16* outString,
4752                             const char16_t* s, size_t len,
4753                             bool preserveSpaces,
4754                             const char** outErrorMsg,
4755                             bool append)
4756{
4757    String16 tmp;
4758
4759    char quoted = 0;
4760    const char16_t* p = s;
4761    while (p < (s+len)) {
4762        while (p < (s+len)) {
4763            const char16_t c = *p;
4764            if (c == '\\') {
4765                break;
4766            }
4767            if (!preserveSpaces) {
4768                if (quoted == 0 && isspace16(c)
4769                    && (c != ' ' || isspace16(*(p+1)))) {
4770                    break;
4771                }
4772                if (c == '"' && (quoted == 0 || quoted == '"')) {
4773                    break;
4774                }
4775                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
4776                    /*
4777                     * In practice, when people write ' instead of \'
4778                     * in a string, they are doing it by accident
4779                     * instead of really meaning to use ' as a quoting
4780                     * character.  Warn them so they don't lose it.
4781                     */
4782                    if (outErrorMsg) {
4783                        *outErrorMsg = "Apostrophe not preceded by \\";
4784                    }
4785                    return false;
4786                }
4787            }
4788            p++;
4789        }
4790        if (p < (s+len)) {
4791            if (p > s) {
4792                tmp.append(String16(s, p-s));
4793            }
4794            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
4795                if (quoted == 0) {
4796                    quoted = *p;
4797                } else {
4798                    quoted = 0;
4799                }
4800                p++;
4801            } else if (!preserveSpaces && isspace16(*p)) {
4802                // Space outside of a quote -- consume all spaces and
4803                // leave a single plain space char.
4804                tmp.append(String16(" "));
4805                p++;
4806                while (p < (s+len) && isspace16(*p)) {
4807                    p++;
4808                }
4809            } else if (*p == '\\') {
4810                p++;
4811                if (p < (s+len)) {
4812                    switch (*p) {
4813                    case 't':
4814                        tmp.append(String16("\t"));
4815                        break;
4816                    case 'n':
4817                        tmp.append(String16("\n"));
4818                        break;
4819                    case '#':
4820                        tmp.append(String16("#"));
4821                        break;
4822                    case '@':
4823                        tmp.append(String16("@"));
4824                        break;
4825                    case '?':
4826                        tmp.append(String16("?"));
4827                        break;
4828                    case '"':
4829                        tmp.append(String16("\""));
4830                        break;
4831                    case '\'':
4832                        tmp.append(String16("'"));
4833                        break;
4834                    case '\\':
4835                        tmp.append(String16("\\"));
4836                        break;
4837                    case 'u':
4838                    {
4839                        char16_t chr = 0;
4840                        int i = 0;
4841                        while (i < 4 && p[1] != 0) {
4842                            p++;
4843                            i++;
4844                            int c;
4845                            if (*p >= '0' && *p <= '9') {
4846                                c = *p - '0';
4847                            } else if (*p >= 'a' && *p <= 'f') {
4848                                c = *p - 'a' + 10;
4849                            } else if (*p >= 'A' && *p <= 'F') {
4850                                c = *p - 'A' + 10;
4851                            } else {
4852                                if (outErrorMsg) {
4853                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
4854                                }
4855                                return false;
4856                            }
4857                            chr = (chr<<4) | c;
4858                        }
4859                        tmp.append(String16(&chr, 1));
4860                    } break;
4861                    default:
4862                        // ignore unknown escape chars.
4863                        break;
4864                    }
4865                    p++;
4866                }
4867            }
4868            len -= (p-s);
4869            s = p;
4870        }
4871    }
4872
4873    if (tmp.size() != 0) {
4874        if (len > 0) {
4875            tmp.append(String16(s, len));
4876        }
4877        if (append) {
4878            outString->append(tmp);
4879        } else {
4880            outString->setTo(tmp);
4881        }
4882    } else {
4883        if (append) {
4884            outString->append(String16(s, len));
4885        } else {
4886            outString->setTo(s, len);
4887        }
4888    }
4889
4890    return true;
4891}
4892
4893size_t ResTable::getBasePackageCount() const
4894{
4895    if (mError != NO_ERROR) {
4896        return 0;
4897    }
4898    return mPackageGroups.size();
4899}
4900
4901const char16_t* ResTable::getBasePackageName(size_t idx) const
4902{
4903    if (mError != NO_ERROR) {
4904        return 0;
4905    }
4906    LOG_FATAL_IF(idx >= mPackageGroups.size(),
4907                 "Requested package index %d past package count %d",
4908                 (int)idx, (int)mPackageGroups.size());
4909    return mPackageGroups[idx]->name.string();
4910}
4911
4912uint32_t ResTable::getBasePackageId(size_t idx) const
4913{
4914    if (mError != NO_ERROR) {
4915        return 0;
4916    }
4917    LOG_FATAL_IF(idx >= mPackageGroups.size(),
4918                 "Requested package index %d past package count %d",
4919                 (int)idx, (int)mPackageGroups.size());
4920    return mPackageGroups[idx]->id;
4921}
4922
4923size_t ResTable::getTableCount() const
4924{
4925    return mHeaders.size();
4926}
4927
4928const ResStringPool* ResTable::getTableStringBlock(size_t index) const
4929{
4930    return &mHeaders[index]->values;
4931}
4932
4933void* ResTable::getTableCookie(size_t index) const
4934{
4935    return mHeaders[index]->cookie;
4936}
4937
4938void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
4939{
4940    const size_t I = mPackageGroups.size();
4941    for (size_t i=0; i<I; i++) {
4942        const PackageGroup* packageGroup = mPackageGroups[i];
4943        const size_t J = packageGroup->packages.size();
4944        for (size_t j=0; j<J; j++) {
4945            const Package* package = packageGroup->packages[j];
4946            const size_t K = package->types.size();
4947            for (size_t k=0; k<K; k++) {
4948                const Type* type = package->types[k];
4949                if (type == NULL) continue;
4950                const size_t L = type->configs.size();
4951                for (size_t l=0; l<L; l++) {
4952                    const ResTable_type* config = type->configs[l];
4953                    const ResTable_config* cfg = &config->config;
4954                    // only insert unique
4955                    const size_t M = configs->size();
4956                    size_t m;
4957                    for (m=0; m<M; m++) {
4958                        if (0 == (*configs)[m].compare(*cfg)) {
4959                            break;
4960                        }
4961                    }
4962                    // if we didn't find it
4963                    if (m == M) {
4964                        configs->add(*cfg);
4965                    }
4966                }
4967            }
4968        }
4969    }
4970}
4971
4972void ResTable::getLocales(Vector<String8>* locales) const
4973{
4974    Vector<ResTable_config> configs;
4975    ALOGV("calling getConfigurations");
4976    getConfigurations(&configs);
4977    ALOGV("called getConfigurations size=%d", (int)configs.size());
4978    const size_t I = configs.size();
4979    for (size_t i=0; i<I; i++) {
4980        char locale[6];
4981        configs[i].getLocale(locale);
4982        const size_t J = locales->size();
4983        size_t j;
4984        for (j=0; j<J; j++) {
4985            if (0 == strcmp(locale, (*locales)[j].string())) {
4986                break;
4987            }
4988        }
4989        if (j == J) {
4990            locales->add(String8(locale));
4991        }
4992    }
4993}
4994
4995ssize_t ResTable::getEntry(
4996    const Package* package, int typeIndex, int entryIndex,
4997    const ResTable_config* config,
4998    const ResTable_type** outType, const ResTable_entry** outEntry,
4999    const Type** outTypeClass) const
5000{
5001    ALOGV("Getting entry from package %p\n", package);
5002    const ResTable_package* const pkg = package->package;
5003
5004    const Type* allTypes = package->getType(typeIndex);
5005    ALOGV("allTypes=%p\n", allTypes);
5006    if (allTypes == NULL) {
5007        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5008        return 0;
5009    }
5010
5011    if ((size_t)entryIndex >= allTypes->entryCount) {
5012        ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
5013            entryIndex, (int)allTypes->entryCount);
5014        return BAD_TYPE;
5015    }
5016
5017    const ResTable_type* type = NULL;
5018    uint32_t offset = ResTable_type::NO_ENTRY;
5019    ResTable_config bestConfig;
5020    memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
5021
5022    const size_t NT = allTypes->configs.size();
5023    for (size_t i=0; i<NT; i++) {
5024        const ResTable_type* const thisType = allTypes->configs[i];
5025        if (thisType == NULL) continue;
5026
5027        ResTable_config thisConfig;
5028        thisConfig.copyFromDtoH(thisType->config);
5029
5030        TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
5031                           entryIndex, typeIndex+1, dtohl(thisType->config.size),
5032                           thisConfig.toString().string()));
5033
5034        // Check to make sure this one is valid for the current parameters.
5035        if (config && !thisConfig.match(*config)) {
5036            TABLE_GETENTRY(ALOGI("Does not match config!\n"));
5037            continue;
5038        }
5039
5040        // Check if there is the desired entry in this type.
5041
5042        const uint8_t* const end = ((const uint8_t*)thisType)
5043            + dtohl(thisType->header.size);
5044        const uint32_t* const eindex = (const uint32_t*)
5045            (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
5046
5047        uint32_t thisOffset = dtohl(eindex[entryIndex]);
5048        if (thisOffset == ResTable_type::NO_ENTRY) {
5049            TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
5050            continue;
5051        }
5052
5053        if (type != NULL) {
5054            // Check if this one is less specific than the last found.  If so,
5055            // we will skip it.  We check starting with things we most care
5056            // about to those we least care about.
5057            if (!thisConfig.isBetterThan(bestConfig, config)) {
5058                TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
5059                continue;
5060            }
5061        }
5062
5063        type = thisType;
5064        offset = thisOffset;
5065        bestConfig = thisConfig;
5066        TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
5067        if (!config) break;
5068    }
5069
5070    if (type == NULL) {
5071        TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
5072        return BAD_INDEX;
5073    }
5074
5075    offset += dtohl(type->entriesStart);
5076    TABLE_NOISY(aout << "Looking in resource table " << package->header->header
5077          << ", typeOff="
5078          << (void*)(((const char*)type)-((const char*)package->header->header))
5079          << ", offset=" << (void*)offset << endl);
5080
5081    if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
5082        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5083             offset, dtohl(type->header.size));
5084        return BAD_TYPE;
5085    }
5086    if ((offset&0x3) != 0) {
5087        ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
5088             offset);
5089        return BAD_TYPE;
5090    }
5091
5092    const ResTable_entry* const entry = (const ResTable_entry*)
5093        (((const uint8_t*)type) + offset);
5094    if (dtohs(entry->size) < sizeof(*entry)) {
5095        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5096        return BAD_TYPE;
5097    }
5098
5099    *outType = type;
5100    *outEntry = entry;
5101    if (outTypeClass != NULL) {
5102        *outTypeClass = allTypes;
5103    }
5104    return offset + dtohs(entry->size);
5105}
5106
5107status_t ResTable::parsePackage(const ResTable_package* const pkg,
5108                                const Header* const header, uint32_t idmap_id)
5109{
5110    const uint8_t* base = (const uint8_t*)pkg;
5111    status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
5112                                  header->dataEnd, "ResTable_package");
5113    if (err != NO_ERROR) {
5114        return (mError=err);
5115    }
5116
5117    const size_t pkgSize = dtohl(pkg->header.size);
5118
5119    if (dtohl(pkg->typeStrings) >= pkgSize) {
5120        ALOGW("ResTable_package type strings at %p are past chunk size %p.",
5121             (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
5122        return (mError=BAD_TYPE);
5123    }
5124    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5125        ALOGW("ResTable_package type strings at %p is not on an integer boundary.",
5126             (void*)dtohl(pkg->typeStrings));
5127        return (mError=BAD_TYPE);
5128    }
5129    if (dtohl(pkg->keyStrings) >= pkgSize) {
5130        ALOGW("ResTable_package key strings at %p are past chunk size %p.",
5131             (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
5132        return (mError=BAD_TYPE);
5133    }
5134    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5135        ALOGW("ResTable_package key strings at %p is not on an integer boundary.",
5136             (void*)dtohl(pkg->keyStrings));
5137        return (mError=BAD_TYPE);
5138    }
5139
5140    Package* package = NULL;
5141    PackageGroup* group = NULL;
5142    uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
5143    // If at this point id == 0, pkg is an overlay package without a
5144    // corresponding idmap. During regular usage, overlay packages are
5145    // always loaded alongside their idmaps, but during idmap creation
5146    // the package is temporarily loaded by itself.
5147    if (id < 256) {
5148
5149        package = new Package(this, header, pkg);
5150        if (package == NULL) {
5151            return (mError=NO_MEMORY);
5152        }
5153
5154        size_t idx = mPackageMap[id];
5155        if (idx == 0) {
5156            idx = mPackageGroups.size()+1;
5157
5158            char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5159            strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5160            group = new PackageGroup(this, String16(tmpName), id);
5161            if (group == NULL) {
5162                delete package;
5163                return (mError=NO_MEMORY);
5164            }
5165
5166            err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5167                                           header->dataEnd-(base+dtohl(pkg->typeStrings)));
5168            if (err != NO_ERROR) {
5169                delete group;
5170                delete package;
5171                return (mError=err);
5172            }
5173            err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5174                                          header->dataEnd-(base+dtohl(pkg->keyStrings)));
5175            if (err != NO_ERROR) {
5176                delete group;
5177                delete package;
5178                return (mError=err);
5179            }
5180
5181            //printf("Adding new package id %d at index %d\n", id, idx);
5182            err = mPackageGroups.add(group);
5183            if (err < NO_ERROR) {
5184                return (mError=err);
5185            }
5186            group->basePackage = package;
5187
5188            mPackageMap[id] = (uint8_t)idx;
5189        } else {
5190            group = mPackageGroups.itemAt(idx-1);
5191            if (group == NULL) {
5192                return (mError=UNKNOWN_ERROR);
5193            }
5194        }
5195        err = group->packages.add(package);
5196        if (err < NO_ERROR) {
5197            return (mError=err);
5198        }
5199    } else {
5200        LOG_ALWAYS_FATAL("Package id out of range");
5201        return NO_ERROR;
5202    }
5203
5204
5205    // Iterate through all chunks.
5206    size_t curPackage = 0;
5207
5208    const ResChunk_header* chunk =
5209        (const ResChunk_header*)(((const uint8_t*)pkg)
5210                                 + dtohs(pkg->header.headerSize));
5211    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5212    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5213           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5214        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5215                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5216                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5217        const size_t csize = dtohl(chunk->size);
5218        const uint16_t ctype = dtohs(chunk->type);
5219        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5220            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5221            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5222                                 endPos, "ResTable_typeSpec");
5223            if (err != NO_ERROR) {
5224                return (mError=err);
5225            }
5226
5227            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5228
5229            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5230                                    (void*)(base-(const uint8_t*)chunk),
5231                                    dtohs(typeSpec->header.type),
5232                                    dtohs(typeSpec->header.headerSize),
5233                                    (void*)typeSize));
5234            // look for block overrun or int overflow when multiplying by 4
5235            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5236                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5237                    > typeSpecSize)) {
5238                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5239                     (void*)(dtohs(typeSpec->header.headerSize)
5240                             +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5241                     (void*)typeSpecSize);
5242                return (mError=BAD_TYPE);
5243            }
5244
5245            if (typeSpec->id == 0) {
5246                ALOGW("ResTable_type has an id of 0.");
5247                return (mError=BAD_TYPE);
5248            }
5249
5250            while (package->types.size() < typeSpec->id) {
5251                package->types.add(NULL);
5252            }
5253            Type* t = package->types[typeSpec->id-1];
5254            if (t == NULL) {
5255                t = new Type(header, package, dtohl(typeSpec->entryCount));
5256                package->types.editItemAt(typeSpec->id-1) = t;
5257            } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5258                ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5259                    (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5260                return (mError=BAD_TYPE);
5261            }
5262            t->typeSpecFlags = (const uint32_t*)(
5263                    ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5264            t->typeSpec = typeSpec;
5265
5266        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5267            const ResTable_type* type = (const ResTable_type*)(chunk);
5268            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5269                                 endPos, "ResTable_type");
5270            if (err != NO_ERROR) {
5271                return (mError=err);
5272            }
5273
5274            const size_t typeSize = dtohl(type->header.size);
5275
5276            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5277                                    (void*)(base-(const uint8_t*)chunk),
5278                                    dtohs(type->header.type),
5279                                    dtohs(type->header.headerSize),
5280                                    (void*)typeSize));
5281            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5282                > typeSize) {
5283                ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
5284                     (void*)(dtohs(type->header.headerSize)
5285                             +(sizeof(uint32_t)*dtohl(type->entryCount))),
5286                     (void*)typeSize);
5287                return (mError=BAD_TYPE);
5288            }
5289            if (dtohl(type->entryCount) != 0
5290                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5291                ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
5292                     (void*)dtohl(type->entriesStart), (void*)typeSize);
5293                return (mError=BAD_TYPE);
5294            }
5295            if (type->id == 0) {
5296                ALOGW("ResTable_type has an id of 0.");
5297                return (mError=BAD_TYPE);
5298            }
5299
5300            while (package->types.size() < type->id) {
5301                package->types.add(NULL);
5302            }
5303            Type* t = package->types[type->id-1];
5304            if (t == NULL) {
5305                t = new Type(header, package, dtohl(type->entryCount));
5306                package->types.editItemAt(type->id-1) = t;
5307            } else if (dtohl(type->entryCount) != t->entryCount) {
5308                ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5309                    (int)dtohl(type->entryCount), (int)t->entryCount);
5310                return (mError=BAD_TYPE);
5311            }
5312
5313            TABLE_GETENTRY(
5314                ResTable_config thisConfig;
5315                thisConfig.copyFromDtoH(type->config);
5316                ALOGI("Adding config to type %d: %s\n",
5317                      type->id, thisConfig.toString().string()));
5318            t->configs.add(type);
5319        } else {
5320            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5321                                          endPos, "ResTable_package:unknown");
5322            if (err != NO_ERROR) {
5323                return (mError=err);
5324            }
5325        }
5326        chunk = (const ResChunk_header*)
5327            (((const uint8_t*)chunk) + csize);
5328    }
5329
5330    if (group->typeCount == 0) {
5331        group->typeCount = package->types.size();
5332    }
5333
5334    return NO_ERROR;
5335}
5336
5337status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
5338                               void** outData, size_t* outSize) const
5339{
5340    // see README for details on the format of map
5341    if (mPackageGroups.size() == 0) {
5342        return UNKNOWN_ERROR;
5343    }
5344    if (mPackageGroups[0]->packages.size() == 0) {
5345        return UNKNOWN_ERROR;
5346    }
5347
5348    Vector<Vector<uint32_t> > map;
5349    const PackageGroup* pg = mPackageGroups[0];
5350    const Package* pkg = pg->packages[0];
5351    size_t typeCount = pkg->types.size();
5352    // starting size is header + first item (number of types in map)
5353    *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5354    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5355    const uint32_t pkg_id = pkg->package->id << 24;
5356
5357    for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5358        ssize_t first = -1;
5359        ssize_t last = -1;
5360        const Type* typeConfigs = pkg->getType(typeIndex);
5361        ssize_t mapIndex = map.add();
5362        if (mapIndex < 0) {
5363            return NO_MEMORY;
5364        }
5365        Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5366        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5367            uint32_t resID = pkg_id
5368                | (0x00ff0000 & ((typeIndex+1)<<16))
5369                | (0x0000ffff & (entryIndex));
5370            resource_name resName;
5371            if (!this->getResourceName(resID, true, &resName)) {
5372                ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5373                // add dummy value, or trimming leading/trailing zeroes later will fail
5374                vector.push(0);
5375                continue;
5376            }
5377
5378            const String16 overlayType(resName.type, resName.typeLen);
5379            const String16 overlayName(resName.name, resName.nameLen);
5380            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5381                                                              overlayName.size(),
5382                                                              overlayType.string(),
5383                                                              overlayType.size(),
5384                                                              overlayPackage.string(),
5385                                                              overlayPackage.size());
5386            if (overlayResID != 0) {
5387                overlayResID = pkg_id | (0x00ffffff & overlayResID);
5388                last = Res_GETENTRY(resID);
5389                if (first == -1) {
5390                    first = Res_GETENTRY(resID);
5391                }
5392            }
5393            vector.push(overlayResID);
5394#if 0
5395            if (overlayResID != 0) {
5396                ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5397                     String8(String16(resName.type)).string(),
5398                     String8(String16(resName.name)).string(),
5399                     resID, overlayResID);
5400            }
5401#endif
5402        }
5403
5404        if (first != -1) {
5405            // shave off trailing entries which lack overlay values
5406            const size_t last_past_one = last + 1;
5407            if (last_past_one < vector.size()) {
5408                vector.removeItemsAt(last_past_one, vector.size() - last_past_one);
5409            }
5410            // shave off leading entries which lack overlay values
5411            vector.removeItemsAt(0, first);
5412            // store offset to first overlaid resource ID of this type
5413            vector.insertAt((uint32_t)first, 0, 1);
5414            // reserve space for number and offset of entries, and the actual entries
5415            *outSize += (2 + vector.size()) * sizeof(uint32_t);
5416        } else {
5417            // no entries of current type defined in overlay package
5418            vector.clear();
5419            // reserve space for type offset
5420            *outSize += 1 * sizeof(uint32_t);
5421        }
5422    }
5423
5424    if ((*outData = malloc(*outSize)) == NULL) {
5425        return NO_MEMORY;
5426    }
5427    uint32_t* data = (uint32_t*)*outData;
5428    *data++ = htodl(IDMAP_MAGIC);
5429    *data++ = htodl(originalCrc);
5430    *data++ = htodl(overlayCrc);
5431    const size_t mapSize = map.size();
5432    *data++ = htodl(mapSize);
5433    size_t offset = mapSize;
5434    for (size_t i = 0; i < mapSize; ++i) {
5435        const Vector<uint32_t>& vector = map.itemAt(i);
5436        const size_t N = vector.size();
5437        if (N == 0) {
5438            *data++ = htodl(0);
5439        } else {
5440            offset++;
5441            *data++ = htodl(offset);
5442            offset += N;
5443        }
5444    }
5445    for (size_t i = 0; i < mapSize; ++i) {
5446        const Vector<uint32_t>& vector = map.itemAt(i);
5447        const size_t N = vector.size();
5448        if (N == 0) {
5449            continue;
5450        }
5451        if (N == 1) { // vector expected to hold (offset) + (N > 0 entries)
5452            ALOGW("idmap: type %d supposedly has entries, but no entries found\n", i);
5453            return UNKNOWN_ERROR;
5454        }
5455        *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5456        for (size_t j = 0; j < N; ++j) {
5457            const uint32_t& overlayResID = vector.itemAt(j);
5458            *data++ = htodl(overlayResID);
5459        }
5460    }
5461
5462    return NO_ERROR;
5463}
5464
5465bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5466                            uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
5467{
5468    const uint32_t* map = (const uint32_t*)idmap;
5469    if (!assertIdmapHeader(map, sizeBytes)) {
5470        return false;
5471    }
5472    *pOriginalCrc = map[1];
5473    *pOverlayCrc = map[2];
5474    return true;
5475}
5476
5477
5478#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5479
5480#define CHAR16_ARRAY_EQ(constant, var, len) \
5481        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
5482
5483static void print_complex(uint32_t complex, bool isFraction)
5484{
5485    const float MANTISSA_MULT =
5486        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
5487    const float RADIX_MULTS[] = {
5488        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
5489        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
5490    };
5491
5492    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
5493                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
5494            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
5495                            & Res_value::COMPLEX_RADIX_MASK];
5496    printf("%f", value);
5497
5498    if (!isFraction) {
5499        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5500            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
5501            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
5502            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
5503            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
5504            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
5505            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
5506            default: printf(" (unknown unit)"); break;
5507        }
5508    } else {
5509        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5510            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
5511            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
5512            default: printf(" (unknown unit)"); break;
5513        }
5514    }
5515}
5516
5517// Normalize a string for output
5518String8 ResTable::normalizeForOutput( const char *input )
5519{
5520    String8 ret;
5521    char buff[2];
5522    buff[1] = '\0';
5523
5524    while (*input != '\0') {
5525        switch (*input) {
5526            // All interesting characters are in the ASCII zone, so we are making our own lives
5527            // easier by scanning the string one byte at a time.
5528        case '\\':
5529            ret += "\\\\";
5530            break;
5531        case '\n':
5532            ret += "\\n";
5533            break;
5534        case '"':
5535            ret += "\\\"";
5536            break;
5537        default:
5538            buff[0] = *input;
5539            ret += buff;
5540            break;
5541        }
5542
5543        input++;
5544    }
5545
5546    return ret;
5547}
5548
5549void ResTable::print_value(const Package* pkg, const Res_value& value) const
5550{
5551    if (value.dataType == Res_value::TYPE_NULL) {
5552        printf("(null)\n");
5553    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
5554        printf("(reference) 0x%08x\n", value.data);
5555    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
5556        printf("(attribute) 0x%08x\n", value.data);
5557    } else if (value.dataType == Res_value::TYPE_STRING) {
5558        size_t len;
5559        const char* str8 = pkg->header->values.string8At(
5560                value.data, &len);
5561        if (str8 != NULL) {
5562            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
5563        } else {
5564            const char16_t* str16 = pkg->header->values.stringAt(
5565                    value.data, &len);
5566            if (str16 != NULL) {
5567                printf("(string16) \"%s\"\n",
5568                    normalizeForOutput(String8(str16, len).string()).string());
5569            } else {
5570                printf("(string) null\n");
5571            }
5572        }
5573    } else if (value.dataType == Res_value::TYPE_FLOAT) {
5574        printf("(float) %g\n", *(const float*)&value.data);
5575    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
5576        printf("(dimension) ");
5577        print_complex(value.data, false);
5578        printf("\n");
5579    } else if (value.dataType == Res_value::TYPE_FRACTION) {
5580        printf("(fraction) ");
5581        print_complex(value.data, true);
5582        printf("\n");
5583    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
5584            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
5585        printf("(color) #%08x\n", value.data);
5586    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
5587        printf("(boolean) %s\n", value.data ? "true" : "false");
5588    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
5589            || value.dataType <= Res_value::TYPE_LAST_INT) {
5590        printf("(int) 0x%08x or %d\n", value.data, value.data);
5591    } else {
5592        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
5593               (int)value.dataType, (int)value.data,
5594               (int)value.size, (int)value.res0);
5595    }
5596}
5597
5598void ResTable::print(bool inclValues) const
5599{
5600    if (mError != 0) {
5601        printf("mError=0x%x (%s)\n", mError, strerror(mError));
5602    }
5603#if 0
5604    printf("mParams=%c%c-%c%c,\n",
5605            mParams.language[0], mParams.language[1],
5606            mParams.country[0], mParams.country[1]);
5607#endif
5608    size_t pgCount = mPackageGroups.size();
5609    printf("Package Groups (%d)\n", (int)pgCount);
5610    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
5611        const PackageGroup* pg = mPackageGroups[pgIndex];
5612        printf("Package Group %d id=%d packageCount=%d name=%s\n",
5613                (int)pgIndex, pg->id, (int)pg->packages.size(),
5614                String8(pg->name).string());
5615
5616        size_t pkgCount = pg->packages.size();
5617        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
5618            const Package* pkg = pg->packages[pkgIndex];
5619            size_t typeCount = pkg->types.size();
5620            printf("  Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
5621                    pkg->package->id, String8(String16(pkg->package->name)).string(),
5622                    (int)typeCount);
5623            for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
5624                const Type* typeConfigs = pkg->getType(typeIndex);
5625                if (typeConfigs == NULL) {
5626                    printf("    type %d NULL\n", (int)typeIndex);
5627                    continue;
5628                }
5629                const size_t NTC = typeConfigs->configs.size();
5630                printf("    type %d configCount=%d entryCount=%d\n",
5631                       (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
5632                if (typeConfigs->typeSpecFlags != NULL) {
5633                    for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
5634                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5635                                    | (0x00ff0000 & ((typeIndex+1)<<16))
5636                                    | (0x0000ffff & (entryIndex));
5637                        resource_name resName;
5638                        if (this->getResourceName(resID, true, &resName)) {
5639                            String8 type8;
5640                            String8 name8;
5641                            if (resName.type8 != NULL) {
5642                                type8 = String8(resName.type8, resName.typeLen);
5643                            } else {
5644                                type8 = String8(resName.type, resName.typeLen);
5645                            }
5646                            if (resName.name8 != NULL) {
5647                                name8 = String8(resName.name8, resName.nameLen);
5648                            } else {
5649                                name8 = String8(resName.name, resName.nameLen);
5650                            }
5651                            printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
5652                                resID,
5653                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
5654                                type8.string(), name8.string(),
5655                                dtohl(typeConfigs->typeSpecFlags[entryIndex]));
5656                        } else {
5657                            printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
5658                        }
5659                    }
5660                }
5661                for (size_t configIndex=0; configIndex<NTC; configIndex++) {
5662                    const ResTable_type* type = typeConfigs->configs[configIndex];
5663                    if ((((uint64_t)type)&0x3) != 0) {
5664                        printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
5665                        continue;
5666                    }
5667                    String8 configStr = type->config.toString();
5668                    printf("      config %s:\n", configStr.size() > 0
5669                            ? configStr.string() : "(default)");
5670                    size_t entryCount = dtohl(type->entryCount);
5671                    uint32_t entriesStart = dtohl(type->entriesStart);
5672                    if ((entriesStart&0x3) != 0) {
5673                        printf("      NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
5674                        continue;
5675                    }
5676                    uint32_t typeSize = dtohl(type->header.size);
5677                    if ((typeSize&0x3) != 0) {
5678                        printf("      NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
5679                        continue;
5680                    }
5681                    for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
5682
5683                        const uint8_t* const end = ((const uint8_t*)type)
5684                            + dtohl(type->header.size);
5685                        const uint32_t* const eindex = (const uint32_t*)
5686                            (((const uint8_t*)type) + dtohs(type->header.headerSize));
5687
5688                        uint32_t thisOffset = dtohl(eindex[entryIndex]);
5689                        if (thisOffset == ResTable_type::NO_ENTRY) {
5690                            continue;
5691                        }
5692
5693                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5694                                    | (0x00ff0000 & ((typeIndex+1)<<16))
5695                                    | (0x0000ffff & (entryIndex));
5696                        resource_name resName;
5697                        if (this->getResourceName(resID, true, &resName)) {
5698                            String8 type8;
5699                            String8 name8;
5700                            if (resName.type8 != NULL) {
5701                                type8 = String8(resName.type8, resName.typeLen);
5702                            } else {
5703                                type8 = String8(resName.type, resName.typeLen);
5704                            }
5705                            if (resName.name8 != NULL) {
5706                                name8 = String8(resName.name8, resName.nameLen);
5707                            } else {
5708                                name8 = String8(resName.name, resName.nameLen);
5709                            }
5710                            printf("        resource 0x%08x %s:%s/%s: ", resID,
5711                                    CHAR16_TO_CSTR(resName.package, resName.packageLen),
5712                                    type8.string(), name8.string());
5713                        } else {
5714                            printf("        INVALID RESOURCE 0x%08x: ", resID);
5715                        }
5716                        if ((thisOffset&0x3) != 0) {
5717                            printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
5718                            continue;
5719                        }
5720                        if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
5721                            printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
5722                                   (void*)entriesStart, (void*)thisOffset,
5723                                   (void*)typeSize);
5724                            continue;
5725                        }
5726
5727                        const ResTable_entry* ent = (const ResTable_entry*)
5728                            (((const uint8_t*)type) + entriesStart + thisOffset);
5729                        if (((entriesStart + thisOffset)&0x3) != 0) {
5730                            printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
5731                                 (void*)(entriesStart + thisOffset));
5732                            continue;
5733                        }
5734
5735                        uint16_t esize = dtohs(ent->size);
5736                        if ((esize&0x3) != 0) {
5737                            printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
5738                            continue;
5739                        }
5740                        if ((thisOffset+esize) > typeSize) {
5741                            printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
5742                                   (void*)entriesStart, (void*)thisOffset,
5743                                   (void*)esize, (void*)typeSize);
5744                            continue;
5745                        }
5746
5747                        const Res_value* valuePtr = NULL;
5748                        const ResTable_map_entry* bagPtr = NULL;
5749                        Res_value value;
5750                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
5751                            printf("<bag>");
5752                            bagPtr = (const ResTable_map_entry*)ent;
5753                        } else {
5754                            valuePtr = (const Res_value*)
5755                                (((const uint8_t*)ent) + esize);
5756                            value.copyFrom_dtoh(*valuePtr);
5757                            printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
5758                                   (int)value.dataType, (int)value.data,
5759                                   (int)value.size, (int)value.res0);
5760                        }
5761
5762                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
5763                            printf(" (PUBLIC)");
5764                        }
5765                        printf("\n");
5766
5767                        if (inclValues) {
5768                            if (valuePtr != NULL) {
5769                                printf("          ");
5770                                print_value(pkg, value);
5771                            } else if (bagPtr != NULL) {
5772                                const int N = dtohl(bagPtr->count);
5773                                const uint8_t* baseMapPtr = (const uint8_t*)ent;
5774                                size_t mapOffset = esize;
5775                                const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5776                                printf("          Parent=0x%08x, Count=%d\n",
5777                                    dtohl(bagPtr->parent.ident), N);
5778                                for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
5779                                    printf("          #%i (Key=0x%08x): ",
5780                                        i, dtohl(mapPtr->name.ident));
5781                                    value.copyFrom_dtoh(mapPtr->value);
5782                                    print_value(pkg, value);
5783                                    const size_t size = dtohs(mapPtr->value.size);
5784                                    mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
5785                                    mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5786                                }
5787                            }
5788                        }
5789                    }
5790                }
5791            }
5792        }
5793    }
5794}
5795
5796}   // namespace android
5797