ResourceTypes.cpp revision 6c191299a73388cd593809c0b66bafbd08fd2982 
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            case ResTable_config::UI_MODE_TYPE_WATCH:
2297                res.append("watch");
2298                break;
2299            default:
2300                res.appendFormat("uiModeType=%d",
2301                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2302                break;
2303        }
2304    }
2305    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2306        if (res.size() > 0) res.append("-");
2307        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2308            case ResTable_config::UI_MODE_NIGHT_NO:
2309                res.append("notnight");
2310                break;
2311            case ResTable_config::UI_MODE_NIGHT_YES:
2312                res.append("night");
2313                break;
2314            default:
2315                res.appendFormat("uiModeNight=%d",
2316                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2317                break;
2318        }
2319    }
2320    if (density != DENSITY_DEFAULT) {
2321        if (res.size() > 0) res.append("-");
2322        switch (density) {
2323            case ResTable_config::DENSITY_LOW:
2324                res.append("ldpi");
2325                break;
2326            case ResTable_config::DENSITY_MEDIUM:
2327                res.append("mdpi");
2328                break;
2329            case ResTable_config::DENSITY_TV:
2330                res.append("tvdpi");
2331                break;
2332            case ResTable_config::DENSITY_HIGH:
2333                res.append("hdpi");
2334                break;
2335            case ResTable_config::DENSITY_XHIGH:
2336                res.append("xhdpi");
2337                break;
2338            case ResTable_config::DENSITY_XXHIGH:
2339                res.append("xxhdpi");
2340                break;
2341            case ResTable_config::DENSITY_NONE:
2342                res.append("nodpi");
2343                break;
2344            default:
2345                res.appendFormat("%ddpi", dtohs(density));
2346                break;
2347        }
2348    }
2349    if (touchscreen != TOUCHSCREEN_ANY) {
2350        if (res.size() > 0) res.append("-");
2351        switch (touchscreen) {
2352            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2353                res.append("notouch");
2354                break;
2355            case ResTable_config::TOUCHSCREEN_FINGER:
2356                res.append("finger");
2357                break;
2358            case ResTable_config::TOUCHSCREEN_STYLUS:
2359                res.append("stylus");
2360                break;
2361            default:
2362                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2363                break;
2364        }
2365    }
2366    if (keyboard != KEYBOARD_ANY) {
2367        if (res.size() > 0) res.append("-");
2368        switch (keyboard) {
2369            case ResTable_config::KEYBOARD_NOKEYS:
2370                res.append("nokeys");
2371                break;
2372            case ResTable_config::KEYBOARD_QWERTY:
2373                res.append("qwerty");
2374                break;
2375            case ResTable_config::KEYBOARD_12KEY:
2376                res.append("12key");
2377                break;
2378            default:
2379                res.appendFormat("keyboard=%d", dtohs(keyboard));
2380                break;
2381        }
2382    }
2383    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2384        if (res.size() > 0) res.append("-");
2385        switch (inputFlags&MASK_KEYSHIDDEN) {
2386            case ResTable_config::KEYSHIDDEN_NO:
2387                res.append("keysexposed");
2388                break;
2389            case ResTable_config::KEYSHIDDEN_YES:
2390                res.append("keyshidden");
2391                break;
2392            case ResTable_config::KEYSHIDDEN_SOFT:
2393                res.append("keyssoft");
2394                break;
2395        }
2396    }
2397    if (navigation != NAVIGATION_ANY) {
2398        if (res.size() > 0) res.append("-");
2399        switch (navigation) {
2400            case ResTable_config::NAVIGATION_NONAV:
2401                res.append("nonav");
2402                break;
2403            case ResTable_config::NAVIGATION_DPAD:
2404                res.append("dpad");
2405                break;
2406            case ResTable_config::NAVIGATION_TRACKBALL:
2407                res.append("trackball");
2408                break;
2409            case ResTable_config::NAVIGATION_WHEEL:
2410                res.append("wheel");
2411                break;
2412            default:
2413                res.appendFormat("navigation=%d", dtohs(navigation));
2414                break;
2415        }
2416    }
2417    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2418        if (res.size() > 0) res.append("-");
2419        switch (inputFlags&MASK_NAVHIDDEN) {
2420            case ResTable_config::NAVHIDDEN_NO:
2421                res.append("navsexposed");
2422                break;
2423            case ResTable_config::NAVHIDDEN_YES:
2424                res.append("navhidden");
2425                break;
2426            default:
2427                res.appendFormat("inputFlagsNavHidden=%d",
2428                        dtohs(inputFlags&MASK_NAVHIDDEN));
2429                break;
2430        }
2431    }
2432    if (screenSize != 0) {
2433        if (res.size() > 0) res.append("-");
2434        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2435    }
2436    if (version != 0) {
2437        if (res.size() > 0) res.append("-");
2438        res.appendFormat("v%d", dtohs(sdkVersion));
2439        if (minorVersion != 0) {
2440            res.appendFormat(".%d", dtohs(minorVersion));
2441        }
2442    }
2443
2444    return res;
2445}
2446
2447// --------------------------------------------------------------------
2448// --------------------------------------------------------------------
2449// --------------------------------------------------------------------
2450
2451struct ResTable::Header
2452{
2453    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2454        resourceIDMap(NULL), resourceIDMapSize(0) { }
2455
2456    ~Header()
2457    {
2458        free(resourceIDMap);
2459    }
2460
2461    ResTable* const                 owner;
2462    void*                           ownedData;
2463    const ResTable_header*          header;
2464    size_t                          size;
2465    const uint8_t*                  dataEnd;
2466    size_t                          index;
2467    void*                           cookie;
2468
2469    ResStringPool                   values;
2470    uint32_t*                       resourceIDMap;
2471    size_t                          resourceIDMapSize;
2472};
2473
2474struct ResTable::Type
2475{
2476    Type(const Header* _header, const Package* _package, size_t count)
2477        : header(_header), package(_package), entryCount(count),
2478          typeSpec(NULL), typeSpecFlags(NULL) { }
2479    const Header* const             header;
2480    const Package* const            package;
2481    const size_t                    entryCount;
2482    const ResTable_typeSpec*        typeSpec;
2483    const uint32_t*                 typeSpecFlags;
2484    Vector<const ResTable_type*>    configs;
2485};
2486
2487struct ResTable::Package
2488{
2489    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2490        : owner(_owner), header(_header), package(_package) { }
2491    ~Package()
2492    {
2493        size_t i = types.size();
2494        while (i > 0) {
2495            i--;
2496            delete types[i];
2497        }
2498    }
2499
2500    ResTable* const                 owner;
2501    const Header* const             header;
2502    const ResTable_package* const   package;
2503    Vector<Type*>                   types;
2504
2505    ResStringPool                   typeStrings;
2506    ResStringPool                   keyStrings;
2507
2508    const Type* getType(size_t idx) const {
2509        return idx < types.size() ? types[idx] : NULL;
2510    }
2511};
2512
2513// A group of objects describing a particular resource package.
2514// The first in 'package' is always the root object (from the resource
2515// table that defined the package); the ones after are skins on top of it.
2516struct ResTable::PackageGroup
2517{
2518    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2519        : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
2520    ~PackageGroup() {
2521        clearBagCache();
2522        const size_t N = packages.size();
2523        for (size_t i=0; i<N; i++) {
2524            Package* pkg = packages[i];
2525            if (pkg->owner == owner) {
2526                delete pkg;
2527            }
2528        }
2529    }
2530
2531    void clearBagCache() {
2532        if (bags) {
2533            TABLE_NOISY(printf("bags=%p\n", bags));
2534            Package* pkg = packages[0];
2535            TABLE_NOISY(printf("typeCount=%x\n", typeCount));
2536            for (size_t i=0; i<typeCount; i++) {
2537                TABLE_NOISY(printf("type=%d\n", i));
2538                const Type* type = pkg->getType(i);
2539                if (type != NULL) {
2540                    bag_set** typeBags = bags[i];
2541                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2542                    if (typeBags) {
2543                        TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
2544                        const size_t N = type->entryCount;
2545                        for (size_t j=0; j<N; j++) {
2546                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2547                                free(typeBags[j]);
2548                        }
2549                        free(typeBags);
2550                    }
2551                }
2552            }
2553            free(bags);
2554            bags = NULL;
2555        }
2556    }
2557
2558    ResTable* const                 owner;
2559    String16 const                  name;
2560    uint32_t const                  id;
2561    Vector<Package*>                packages;
2562
2563    // This is for finding typeStrings and other common package stuff.
2564    Package*                        basePackage;
2565
2566    // For quick access.
2567    size_t                          typeCount;
2568
2569    // Computed attribute bags, first indexed by the type and second
2570    // by the entry in that type.
2571    bag_set***                      bags;
2572};
2573
2574struct ResTable::bag_set
2575{
2576    size_t numAttrs;    // number in array
2577    size_t availAttrs;  // total space in array
2578    uint32_t typeSpecFlags;
2579    // Followed by 'numAttr' bag_entry structures.
2580};
2581
2582ResTable::Theme::Theme(const ResTable& table)
2583    : mTable(table)
2584{
2585    memset(mPackages, 0, sizeof(mPackages));
2586}
2587
2588ResTable::Theme::~Theme()
2589{
2590    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2591        package_info* pi = mPackages[i];
2592        if (pi != NULL) {
2593            free_package(pi);
2594        }
2595    }
2596}
2597
2598void ResTable::Theme::free_package(package_info* pi)
2599{
2600    for (size_t j=0; j<pi->numTypes; j++) {
2601        theme_entry* te = pi->types[j].entries;
2602        if (te != NULL) {
2603            free(te);
2604        }
2605    }
2606    free(pi);
2607}
2608
2609ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
2610{
2611    package_info* newpi = (package_info*)malloc(
2612        sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
2613    newpi->numTypes = pi->numTypes;
2614    for (size_t j=0; j<newpi->numTypes; j++) {
2615        size_t cnt = pi->types[j].numEntries;
2616        newpi->types[j].numEntries = cnt;
2617        theme_entry* te = pi->types[j].entries;
2618        if (te != NULL) {
2619            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2620            newpi->types[j].entries = newte;
2621            memcpy(newte, te, cnt*sizeof(theme_entry));
2622        } else {
2623            newpi->types[j].entries = NULL;
2624        }
2625    }
2626    return newpi;
2627}
2628
2629status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
2630{
2631    const bag_entry* bag;
2632    uint32_t bagTypeSpecFlags = 0;
2633    mTable.lock();
2634    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
2635    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
2636    if (N < 0) {
2637        mTable.unlock();
2638        return N;
2639    }
2640
2641    uint32_t curPackage = 0xffffffff;
2642    ssize_t curPackageIndex = 0;
2643    package_info* curPI = NULL;
2644    uint32_t curType = 0xffffffff;
2645    size_t numEntries = 0;
2646    theme_entry* curEntries = NULL;
2647
2648    const bag_entry* end = bag + N;
2649    while (bag < end) {
2650        const uint32_t attrRes = bag->map.name.ident;
2651        const uint32_t p = Res_GETPACKAGE(attrRes);
2652        const uint32_t t = Res_GETTYPE(attrRes);
2653        const uint32_t e = Res_GETENTRY(attrRes);
2654
2655        if (curPackage != p) {
2656            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
2657            if (pidx < 0) {
2658                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
2659                bag++;
2660                continue;
2661            }
2662            curPackage = p;
2663            curPackageIndex = pidx;
2664            curPI = mPackages[pidx];
2665            if (curPI == NULL) {
2666                PackageGroup* const grp = mTable.mPackageGroups[pidx];
2667                int cnt = grp->typeCount;
2668                curPI = (package_info*)malloc(
2669                    sizeof(package_info) + (cnt*sizeof(type_info)));
2670                curPI->numTypes = cnt;
2671                memset(curPI->types, 0, cnt*sizeof(type_info));
2672                mPackages[pidx] = curPI;
2673            }
2674            curType = 0xffffffff;
2675        }
2676        if (curType != t) {
2677            if (t >= curPI->numTypes) {
2678                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
2679                bag++;
2680                continue;
2681            }
2682            curType = t;
2683            curEntries = curPI->types[t].entries;
2684            if (curEntries == NULL) {
2685                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
2686                const Type* type = grp->packages[0]->getType(t);
2687                int cnt = type != NULL ? type->entryCount : 0;
2688                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
2689                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
2690                curPI->types[t].numEntries = cnt;
2691                curPI->types[t].entries = curEntries;
2692            }
2693            numEntries = curPI->types[t].numEntries;
2694        }
2695        if (e >= numEntries) {
2696            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
2697            bag++;
2698            continue;
2699        }
2700        theme_entry* curEntry = curEntries + e;
2701        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
2702                   attrRes, bag->map.value.dataType, bag->map.value.data,
2703             curEntry->value.dataType));
2704        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
2705            curEntry->stringBlock = bag->stringBlock;
2706            curEntry->typeSpecFlags |= bagTypeSpecFlags;
2707            curEntry->value = bag->map.value;
2708        }
2709
2710        bag++;
2711    }
2712
2713    mTable.unlock();
2714
2715    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
2716    //dumpToLog();
2717
2718    return NO_ERROR;
2719}
2720
2721status_t ResTable::Theme::setTo(const Theme& other)
2722{
2723    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
2724    //dumpToLog();
2725    //other.dumpToLog();
2726
2727    if (&mTable == &other.mTable) {
2728        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2729            if (mPackages[i] != NULL) {
2730                free_package(mPackages[i]);
2731            }
2732            if (other.mPackages[i] != NULL) {
2733                mPackages[i] = copy_package(other.mPackages[i]);
2734            } else {
2735                mPackages[i] = NULL;
2736            }
2737        }
2738    } else {
2739        // @todo: need to really implement this, not just copy
2740        // the system package (which is still wrong because it isn't
2741        // fixing up resource references).
2742        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2743            if (mPackages[i] != NULL) {
2744                free_package(mPackages[i]);
2745            }
2746            if (i == 0 && other.mPackages[i] != NULL) {
2747                mPackages[i] = copy_package(other.mPackages[i]);
2748            } else {
2749                mPackages[i] = NULL;
2750            }
2751        }
2752    }
2753
2754    //ALOGI("Final theme:");
2755    //dumpToLog();
2756
2757    return NO_ERROR;
2758}
2759
2760ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
2761        uint32_t* outTypeSpecFlags) const
2762{
2763    int cnt = 20;
2764
2765    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
2766
2767    do {
2768        const ssize_t p = mTable.getResourcePackageIndex(resID);
2769        const uint32_t t = Res_GETTYPE(resID);
2770        const uint32_t e = Res_GETENTRY(resID);
2771
2772        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
2773
2774        if (p >= 0) {
2775            const package_info* const pi = mPackages[p];
2776            TABLE_THEME(ALOGI("Found package: %p", pi));
2777            if (pi != NULL) {
2778                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, pi->numTypes));
2779                if (t < pi->numTypes) {
2780                    const type_info& ti = pi->types[t];
2781                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
2782                    if (e < ti.numEntries) {
2783                        const theme_entry& te = ti.entries[e];
2784                        if (outTypeSpecFlags != NULL) {
2785                            *outTypeSpecFlags |= te.typeSpecFlags;
2786                        }
2787                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
2788                                te.value.dataType, te.value.data));
2789                        const uint8_t type = te.value.dataType;
2790                        if (type == Res_value::TYPE_ATTRIBUTE) {
2791                            if (cnt > 0) {
2792                                cnt--;
2793                                resID = te.value.data;
2794                                continue;
2795                            }
2796                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
2797                            return BAD_INDEX;
2798                        } else if (type != Res_value::TYPE_NULL) {
2799                            *outValue = te.value;
2800                            return te.stringBlock;
2801                        }
2802                        return BAD_INDEX;
2803                    }
2804                }
2805            }
2806        }
2807        break;
2808
2809    } while (true);
2810
2811    return BAD_INDEX;
2812}
2813
2814ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
2815        ssize_t blockIndex, uint32_t* outLastRef,
2816        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
2817{
2818    //printf("Resolving type=0x%x\n", inOutValue->dataType);
2819    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
2820        uint32_t newTypeSpecFlags;
2821        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
2822        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
2823             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
2824        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
2825        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
2826        if (blockIndex < 0) {
2827            return blockIndex;
2828        }
2829    }
2830    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
2831            inoutTypeSpecFlags, inoutConfig);
2832}
2833
2834void ResTable::Theme::dumpToLog() const
2835{
2836    ALOGI("Theme %p:\n", this);
2837    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2838        package_info* pi = mPackages[i];
2839        if (pi == NULL) continue;
2840
2841        ALOGI("  Package #0x%02x:\n", (int)(i+1));
2842        for (size_t j=0; j<pi->numTypes; j++) {
2843            type_info& ti = pi->types[j];
2844            if (ti.numEntries == 0) continue;
2845
2846            ALOGI("    Type #0x%02x:\n", (int)(j+1));
2847            for (size_t k=0; k<ti.numEntries; k++) {
2848                theme_entry& te = ti.entries[k];
2849                if (te.value.dataType == Res_value::TYPE_NULL) continue;
2850                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
2851                     (int)Res_MAKEID(i, j, k),
2852                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
2853            }
2854        }
2855    }
2856}
2857
2858ResTable::ResTable()
2859    : mError(NO_INIT)
2860{
2861    memset(&mParams, 0, sizeof(mParams));
2862    memset(mPackageMap, 0, sizeof(mPackageMap));
2863    //ALOGI("Creating ResTable %p\n", this);
2864}
2865
2866ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
2867    : mError(NO_INIT)
2868{
2869    memset(&mParams, 0, sizeof(mParams));
2870    memset(mPackageMap, 0, sizeof(mPackageMap));
2871    add(data, size, cookie, copyData);
2872    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
2873    //ALOGI("Creating ResTable %p\n", this);
2874}
2875
2876ResTable::~ResTable()
2877{
2878    //ALOGI("Destroying ResTable in %p\n", this);
2879    uninit();
2880}
2881
2882inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
2883{
2884    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
2885}
2886
2887status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData,
2888                       const void* idmap)
2889{
2890    return add(data, size, cookie, NULL, copyData, reinterpret_cast<const Asset*>(idmap));
2891}
2892
2893status_t ResTable::add(Asset* asset, void* cookie, bool copyData, const void* idmap)
2894{
2895    const void* data = asset->getBuffer(true);
2896    if (data == NULL) {
2897        ALOGW("Unable to get buffer of resource asset file");
2898        return UNKNOWN_ERROR;
2899    }
2900    size_t size = (size_t)asset->getLength();
2901    return add(data, size, cookie, asset, copyData, reinterpret_cast<const Asset*>(idmap));
2902}
2903
2904status_t ResTable::add(ResTable* src)
2905{
2906    mError = src->mError;
2907
2908    for (size_t i=0; i<src->mHeaders.size(); i++) {
2909        mHeaders.add(src->mHeaders[i]);
2910    }
2911
2912    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
2913        PackageGroup* srcPg = src->mPackageGroups[i];
2914        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
2915        for (size_t j=0; j<srcPg->packages.size(); j++) {
2916            pg->packages.add(srcPg->packages[j]);
2917        }
2918        pg->basePackage = srcPg->basePackage;
2919        pg->typeCount = srcPg->typeCount;
2920        mPackageGroups.add(pg);
2921    }
2922
2923    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
2924
2925    return mError;
2926}
2927
2928status_t ResTable::add(const void* data, size_t size, void* cookie,
2929                       Asset* asset, bool copyData, const Asset* idmap)
2930{
2931    if (!data) return NO_ERROR;
2932    Header* header = new Header(this);
2933    header->index = mHeaders.size();
2934    header->cookie = cookie;
2935    if (idmap != NULL) {
2936        const size_t idmap_size = idmap->getLength();
2937        const void* idmap_data = const_cast<Asset*>(idmap)->getBuffer(true);
2938        header->resourceIDMap = (uint32_t*)malloc(idmap_size);
2939        if (header->resourceIDMap == NULL) {
2940            delete header;
2941            return (mError = NO_MEMORY);
2942        }
2943        memcpy((void*)header->resourceIDMap, idmap_data, idmap_size);
2944        header->resourceIDMapSize = idmap_size;
2945    }
2946    mHeaders.add(header);
2947
2948    const bool notDeviceEndian = htods(0xf0) != 0xf0;
2949
2950    LOAD_TABLE_NOISY(
2951        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d "
2952             "idmap=%p\n", data, size, cookie, asset, copyData, idmap));
2953
2954    if (copyData || notDeviceEndian) {
2955        header->ownedData = malloc(size);
2956        if (header->ownedData == NULL) {
2957            return (mError=NO_MEMORY);
2958        }
2959        memcpy(header->ownedData, data, size);
2960        data = header->ownedData;
2961    }
2962
2963    header->header = (const ResTable_header*)data;
2964    header->size = dtohl(header->header->header.size);
2965    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
2966    //     dtohl(header->header->header.size), header->header->header.size);
2967    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
2968    LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
2969                                  16, 16, 0, false, printToLogFunc));
2970    if (dtohs(header->header->header.headerSize) > header->size
2971            || header->size > size) {
2972        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
2973             (int)dtohs(header->header->header.headerSize),
2974             (int)header->size, (int)size);
2975        return (mError=BAD_TYPE);
2976    }
2977    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
2978        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
2979             (int)dtohs(header->header->header.headerSize),
2980             (int)header->size);
2981        return (mError=BAD_TYPE);
2982    }
2983    header->dataEnd = ((const uint8_t*)header->header) + header->size;
2984
2985    // Iterate through all chunks.
2986    size_t curPackage = 0;
2987
2988    const ResChunk_header* chunk =
2989        (const ResChunk_header*)(((const uint8_t*)header->header)
2990                                 + dtohs(header->header->header.headerSize));
2991    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
2992           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
2993        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
2994        if (err != NO_ERROR) {
2995            return (mError=err);
2996        }
2997        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
2998                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
2999                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3000        const size_t csize = dtohl(chunk->size);
3001        const uint16_t ctype = dtohs(chunk->type);
3002        if (ctype == RES_STRING_POOL_TYPE) {
3003            if (header->values.getError() != NO_ERROR) {
3004                // Only use the first string chunk; ignore any others that
3005                // may appear.
3006                status_t err = header->values.setTo(chunk, csize);
3007                if (err != NO_ERROR) {
3008                    return (mError=err);
3009                }
3010            } else {
3011                ALOGW("Multiple string chunks found in resource table.");
3012            }
3013        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3014            if (curPackage >= dtohl(header->header->packageCount)) {
3015                ALOGW("More package chunks were found than the %d declared in the header.",
3016                     dtohl(header->header->packageCount));
3017                return (mError=BAD_TYPE);
3018            }
3019            uint32_t idmap_id = 0;
3020            if (idmap != NULL) {
3021                uint32_t tmp;
3022                if (getIdmapPackageId(header->resourceIDMap,
3023                                      header->resourceIDMapSize,
3024                                      &tmp) == NO_ERROR) {
3025                    idmap_id = tmp;
3026                }
3027            }
3028            if (parsePackage((ResTable_package*)chunk, header, idmap_id) != NO_ERROR) {
3029                return mError;
3030            }
3031            curPackage++;
3032        } else {
3033            ALOGW("Unknown chunk type %p in table at %p.\n",
3034                 (void*)(int)(ctype),
3035                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3036        }
3037        chunk = (const ResChunk_header*)
3038            (((const uint8_t*)chunk) + csize);
3039    }
3040
3041    if (curPackage < dtohl(header->header->packageCount)) {
3042        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3043             (int)curPackage, dtohl(header->header->packageCount));
3044        return (mError=BAD_TYPE);
3045    }
3046    mError = header->values.getError();
3047    if (mError != NO_ERROR) {
3048        ALOGW("No string values found in resource table!");
3049    }
3050
3051    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3052    return mError;
3053}
3054
3055status_t ResTable::getError() const
3056{
3057    return mError;
3058}
3059
3060void ResTable::uninit()
3061{
3062    mError = NO_INIT;
3063    size_t N = mPackageGroups.size();
3064    for (size_t i=0; i<N; i++) {
3065        PackageGroup* g = mPackageGroups[i];
3066        delete g;
3067    }
3068    N = mHeaders.size();
3069    for (size_t i=0; i<N; i++) {
3070        Header* header = mHeaders[i];
3071        if (header->owner == this) {
3072            if (header->ownedData) {
3073                free(header->ownedData);
3074            }
3075            delete header;
3076        }
3077    }
3078
3079    mPackageGroups.clear();
3080    mHeaders.clear();
3081}
3082
3083bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3084{
3085    if (mError != NO_ERROR) {
3086        return false;
3087    }
3088
3089    const ssize_t p = getResourcePackageIndex(resID);
3090    const int t = Res_GETTYPE(resID);
3091    const int e = Res_GETENTRY(resID);
3092
3093    if (p < 0) {
3094        if (Res_GETPACKAGE(resID)+1 == 0) {
3095            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3096        } else {
3097            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3098        }
3099        return false;
3100    }
3101    if (t < 0) {
3102        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3103        return false;
3104    }
3105
3106    const PackageGroup* const grp = mPackageGroups[p];
3107    if (grp == NULL) {
3108        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3109        return false;
3110    }
3111    if (grp->packages.size() > 0) {
3112        const Package* const package = grp->packages[0];
3113
3114        const ResTable_type* type;
3115        const ResTable_entry* entry;
3116        ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
3117        if (offset <= 0) {
3118            return false;
3119        }
3120
3121        outName->package = grp->name.string();
3122        outName->packageLen = grp->name.size();
3123        if (allowUtf8) {
3124            outName->type8 = grp->basePackage->typeStrings.string8At(t, &outName->typeLen);
3125            outName->name8 = grp->basePackage->keyStrings.string8At(
3126                dtohl(entry->key.index), &outName->nameLen);
3127        } else {
3128            outName->type8 = NULL;
3129            outName->name8 = NULL;
3130        }
3131        if (outName->type8 == NULL) {
3132            outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
3133            // If we have a bad index for some reason, we should abort.
3134            if (outName->type == NULL) {
3135                return false;
3136            }
3137        }
3138        if (outName->name8 == NULL) {
3139            outName->name = grp->basePackage->keyStrings.stringAt(
3140                dtohl(entry->key.index), &outName->nameLen);
3141            // If we have a bad index for some reason, we should abort.
3142            if (outName->name == NULL) {
3143                return false;
3144            }
3145        }
3146
3147        return true;
3148    }
3149
3150    return false;
3151}
3152
3153ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3154        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3155{
3156    if (mError != NO_ERROR) {
3157        return mError;
3158    }
3159
3160    const ssize_t p = getResourcePackageIndex(resID);
3161    const int t = Res_GETTYPE(resID);
3162    const int e = Res_GETENTRY(resID);
3163
3164    if (p < 0) {
3165        if (Res_GETPACKAGE(resID)+1 == 0) {
3166            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3167        } else {
3168            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3169        }
3170        return BAD_INDEX;
3171    }
3172    if (t < 0) {
3173        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3174        return BAD_INDEX;
3175    }
3176
3177    const Res_value* bestValue = NULL;
3178    const Package* bestPackage = NULL;
3179    ResTable_config bestItem;
3180    memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
3181
3182    if (outSpecFlags != NULL) *outSpecFlags = 0;
3183
3184    // Look through all resource packages, starting with the most
3185    // recently added.
3186    const PackageGroup* const grp = mPackageGroups[p];
3187    if (grp == NULL) {
3188        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3189        return BAD_INDEX;
3190    }
3191
3192    // Allow overriding density
3193    const ResTable_config* desiredConfig = &mParams;
3194    ResTable_config* overrideConfig = NULL;
3195    if (density > 0) {
3196        overrideConfig = (ResTable_config*) malloc(sizeof(ResTable_config));
3197        if (overrideConfig == NULL) {
3198            ALOGE("Couldn't malloc ResTable_config for overrides: %s", strerror(errno));
3199            return BAD_INDEX;
3200        }
3201        memcpy(overrideConfig, &mParams, sizeof(ResTable_config));
3202        overrideConfig->density = density;
3203        desiredConfig = overrideConfig;
3204    }
3205
3206    ssize_t rc = BAD_VALUE;
3207    size_t ip = grp->packages.size();
3208    while (ip > 0) {
3209        ip--;
3210        int T = t;
3211        int E = e;
3212
3213        const Package* const package = grp->packages[ip];
3214        if (package->header->resourceIDMap) {
3215            uint32_t overlayResID = 0x0;
3216            status_t retval = idmapLookup(package->header->resourceIDMap,
3217                                          package->header->resourceIDMapSize,
3218                                          resID, &overlayResID);
3219            if (retval == NO_ERROR && overlayResID != 0x0) {
3220                // for this loop iteration, this is the type and entry we really want
3221                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3222                T = Res_GETTYPE(overlayResID);
3223                E = Res_GETENTRY(overlayResID);
3224            } else {
3225                // resource not present in overlay package, continue with the next package
3226                continue;
3227            }
3228        }
3229
3230        const ResTable_type* type;
3231        const ResTable_entry* entry;
3232        const Type* typeClass;
3233        ssize_t offset = getEntry(package, T, E, desiredConfig, &type, &entry, &typeClass);
3234        if (offset <= 0) {
3235            // No {entry, appropriate config} pair found in package. If this
3236            // package is an overlay package (ip != 0), this simply means the
3237            // overlay package did not specify a default.
3238            // Non-overlay packages are still required to provide a default.
3239            if (offset < 0 && ip == 0) {
3240                ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %zd (error %d)\n",
3241                        resID, T, E, ip, (int)offset);
3242                rc = offset;
3243                goto out;
3244            }
3245            continue;
3246        }
3247
3248        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
3249            if (!mayBeBag) {
3250                ALOGW("Requesting resource %p failed because it is complex\n",
3251                     (void*)resID);
3252            }
3253            continue;
3254        }
3255
3256        TABLE_NOISY(aout << "Resource type data: "
3257              << HexDump(type, dtohl(type->header.size)) << endl);
3258
3259        if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
3260            ALOGW("ResTable_item at %d is beyond type chunk data %d",
3261                 (int)offset, dtohl(type->header.size));
3262            rc = BAD_TYPE;
3263            goto out;
3264        }
3265
3266        const Res_value* item =
3267            (const Res_value*)(((const uint8_t*)type) + offset);
3268        ResTable_config thisConfig;
3269        thisConfig.copyFromDtoH(type->config);
3270
3271        if (outSpecFlags != NULL) {
3272            if (typeClass->typeSpecFlags != NULL) {
3273                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3274            } else {
3275                *outSpecFlags = -1;
3276            }
3277        }
3278
3279        if (bestPackage != NULL &&
3280            (bestItem.isMoreSpecificThan(thisConfig) || bestItem.diff(thisConfig) == 0)) {
3281            // Discard thisConfig not only if bestItem is more specific, but also if the two configs
3282            // are identical (diff == 0), or overlay packages will not take effect.
3283            continue;
3284        }
3285
3286        bestItem = thisConfig;
3287        bestValue = item;
3288        bestPackage = package;
3289    }
3290
3291    TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
3292
3293    if (bestValue) {
3294        outValue->size = dtohs(bestValue->size);
3295        outValue->res0 = bestValue->res0;
3296        outValue->dataType = bestValue->dataType;
3297        outValue->data = dtohl(bestValue->data);
3298        if (outConfig != NULL) {
3299            *outConfig = bestItem;
3300        }
3301        TABLE_NOISY(size_t len;
3302              printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3303                     bestPackage->header->index,
3304                     outValue->dataType,
3305                     outValue->dataType == bestValue->TYPE_STRING
3306                     ? String8(bestPackage->header->values.stringAt(
3307                         outValue->data, &len)).string()
3308                     : "",
3309                     outValue->data));
3310        rc = bestPackage->header->index;
3311        goto out;
3312    }
3313
3314out:
3315    if (overrideConfig != NULL) {
3316        free(overrideConfig);
3317    }
3318
3319    return rc;
3320}
3321
3322ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3323        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3324        ResTable_config* outConfig) const
3325{
3326    int count=0;
3327    while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
3328           && value->data != 0 && count < 20) {
3329        if (outLastRef) *outLastRef = value->data;
3330        uint32_t lastRef = value->data;
3331        uint32_t newFlags = 0;
3332        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3333                outConfig);
3334        if (newIndex == BAD_INDEX) {
3335            return BAD_INDEX;
3336        }
3337        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3338             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3339        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3340        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3341        if (newIndex < 0) {
3342            // This can fail if the resource being referenced is a style...
3343            // in this case, just return the reference, and expect the
3344            // caller to deal with.
3345            return blockIndex;
3346        }
3347        blockIndex = newIndex;
3348        count++;
3349    }
3350    return blockIndex;
3351}
3352
3353const char16_t* ResTable::valueToString(
3354    const Res_value* value, size_t stringBlock,
3355    char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
3356{
3357    if (!value) {
3358        return NULL;
3359    }
3360    if (value->dataType == value->TYPE_STRING) {
3361        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3362    }
3363    // XXX do int to string conversions.
3364    return NULL;
3365}
3366
3367ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3368{
3369    mLock.lock();
3370    ssize_t err = getBagLocked(resID, outBag);
3371    if (err < NO_ERROR) {
3372        //printf("*** get failed!  unlocking\n");
3373        mLock.unlock();
3374    }
3375    return err;
3376}
3377
3378void ResTable::unlockBag(const bag_entry* bag) const
3379{
3380    //printf("<<< unlockBag %p\n", this);
3381    mLock.unlock();
3382}
3383
3384void ResTable::lock() const
3385{
3386    mLock.lock();
3387}
3388
3389void ResTable::unlock() const
3390{
3391    mLock.unlock();
3392}
3393
3394ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3395        uint32_t* outTypeSpecFlags) const
3396{
3397    if (mError != NO_ERROR) {
3398        return mError;
3399    }
3400
3401    const ssize_t p = getResourcePackageIndex(resID);
3402    const int t = Res_GETTYPE(resID);
3403    const int e = Res_GETENTRY(resID);
3404
3405    if (p < 0) {
3406        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3407        return BAD_INDEX;
3408    }
3409    if (t < 0) {
3410        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3411        return BAD_INDEX;
3412    }
3413
3414    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3415    PackageGroup* const grp = mPackageGroups[p];
3416    if (grp == NULL) {
3417        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3418        return false;
3419    }
3420
3421    if (t >= (int)grp->typeCount) {
3422        ALOGW("Type identifier 0x%x is larger than type count 0x%x",
3423             t+1, (int)grp->typeCount);
3424        return BAD_INDEX;
3425    }
3426
3427    const Package* const basePackage = grp->packages[0];
3428
3429    const Type* const typeConfigs = basePackage->getType(t);
3430
3431    const size_t NENTRY = typeConfigs->entryCount;
3432    if (e >= (int)NENTRY) {
3433        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3434             e, (int)typeConfigs->entryCount);
3435        return BAD_INDEX;
3436    }
3437
3438    // First see if we've already computed this bag...
3439    if (grp->bags) {
3440        bag_set** typeSet = grp->bags[t];
3441        if (typeSet) {
3442            bag_set* set = typeSet[e];
3443            if (set) {
3444                if (set != (bag_set*)0xFFFFFFFF) {
3445                    if (outTypeSpecFlags != NULL) {
3446                        *outTypeSpecFlags = set->typeSpecFlags;
3447                    }
3448                    *outBag = (bag_entry*)(set+1);
3449                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3450                    return set->numAttrs;
3451                }
3452                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3453                     resID);
3454                return BAD_INDEX;
3455            }
3456        }
3457    }
3458
3459    // Bag not found, we need to compute it!
3460    if (!grp->bags) {
3461        grp->bags = (bag_set***)calloc(grp->typeCount, sizeof(bag_set*));
3462        if (!grp->bags) return NO_MEMORY;
3463    }
3464
3465    bag_set** typeSet = grp->bags[t];
3466    if (!typeSet) {
3467        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3468        if (!typeSet) return NO_MEMORY;
3469        grp->bags[t] = typeSet;
3470    }
3471
3472    // Mark that we are currently working on this one.
3473    typeSet[e] = (bag_set*)0xFFFFFFFF;
3474
3475    // This is what we are building.
3476    bag_set* set = NULL;
3477
3478    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3479
3480    ResTable_config bestConfig;
3481    memset(&bestConfig, 0, sizeof(bestConfig));
3482
3483    // Now collect all bag attributes from all packages.
3484    size_t ip = grp->packages.size();
3485    while (ip > 0) {
3486        ip--;
3487        int T = t;
3488        int E = e;
3489
3490        const Package* const package = grp->packages[ip];
3491        if (package->header->resourceIDMap) {
3492            uint32_t overlayResID = 0x0;
3493            status_t retval = idmapLookup(package->header->resourceIDMap,
3494                                          package->header->resourceIDMapSize,
3495                                          resID, &overlayResID);
3496            if (retval == NO_ERROR && overlayResID != 0x0) {
3497                // for this loop iteration, this is the type and entry we really want
3498                ALOGV("resource map 0x%08x -> 0x%08x\n", resID, overlayResID);
3499                T = Res_GETTYPE(overlayResID);
3500                E = Res_GETENTRY(overlayResID);
3501            } else {
3502                // resource not present in overlay package, continue with the next package
3503                continue;
3504            }
3505        }
3506
3507        const ResTable_type* type;
3508        const ResTable_entry* entry;
3509        const Type* typeClass;
3510        ALOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, T, E);
3511        ssize_t offset = getEntry(package, T, E, &mParams, &type, &entry, &typeClass);
3512        ALOGV("Resulting offset=%d\n", offset);
3513        if (offset <= 0) {
3514            // No {entry, appropriate config} pair found in package. If this
3515            // package is an overlay package (ip != 0), this simply means the
3516            // overlay package did not specify a default.
3517            // Non-overlay packages are still required to provide a default.
3518            if (offset < 0 && ip == 0) {
3519                if (set) free(set);
3520                return offset;
3521            }
3522            continue;
3523        }
3524
3525        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
3526            ALOGW("Skipping entry %p in package table %d because it is not complex!\n",
3527                 (void*)resID, (int)ip);
3528            continue;
3529        }
3530
3531        if (set != NULL && !type->config.isBetterThan(bestConfig, NULL)) {
3532            continue;
3533        }
3534        bestConfig = type->config;
3535        if (set) {
3536            free(set);
3537            set = NULL;
3538        }
3539
3540        const uint16_t entrySize = dtohs(entry->size);
3541        const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3542            ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
3543        const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3544            ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
3545
3546        size_t N = count;
3547
3548        TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3549                         entrySize, parent, count));
3550
3551        // If this map inherits from another, we need to start
3552        // with its parent's values.  Otherwise start out empty.
3553        TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3554                           entrySize, parent));
3555        if (parent) {
3556            const bag_entry* parentBag;
3557            uint32_t parentTypeSpecFlags = 0;
3558            const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
3559            const size_t NT = ((NP >= 0) ? NP : 0) + N;
3560            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3561            if (set == NULL) {
3562                return NO_MEMORY;
3563            }
3564            if (NP > 0) {
3565                memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3566                set->numAttrs = NP;
3567                TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3568            } else {
3569                TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3570                set->numAttrs = 0;
3571            }
3572            set->availAttrs = NT;
3573            set->typeSpecFlags = parentTypeSpecFlags;
3574        } else {
3575            set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3576            if (set == NULL) {
3577                return NO_MEMORY;
3578            }
3579            set->numAttrs = 0;
3580            set->availAttrs = N;
3581            set->typeSpecFlags = 0;
3582        }
3583
3584        if (typeClass->typeSpecFlags != NULL) {
3585            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[E]);
3586        } else {
3587            set->typeSpecFlags = -1;
3588        }
3589
3590        // Now merge in the new attributes...
3591        ssize_t curOff = offset;
3592        const ResTable_map* map;
3593        bag_entry* entries = (bag_entry*)(set+1);
3594        size_t curEntry = 0;
3595        uint32_t pos = 0;
3596        TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3597                     set, entries, set->availAttrs));
3598        while (pos < count) {
3599            TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3600
3601            if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
3602                ALOGW("ResTable_map at %d is beyond type chunk data %d",
3603                     (int)curOff, dtohl(type->header.size));
3604                return BAD_TYPE;
3605            }
3606            map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
3607            N++;
3608
3609            const uint32_t newName = htodl(map->name.ident);
3610            bool isInside;
3611            uint32_t oldName = 0;
3612            while ((isInside=(curEntry < set->numAttrs))
3613                    && (oldName=entries[curEntry].map.name.ident) < newName) {
3614                TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3615                             curEntry, entries[curEntry].map.name.ident));
3616                curEntry++;
3617            }
3618
3619            if ((!isInside) || oldName != newName) {
3620                // This is a new attribute...  figure out what to do with it.
3621                if (set->numAttrs >= set->availAttrs) {
3622                    // Need to alloc more memory...
3623                    const size_t newAvail = set->availAttrs+N;
3624                    set = (bag_set*)realloc(set,
3625                                            sizeof(bag_set)
3626                                            + sizeof(bag_entry)*newAvail);
3627                    if (set == NULL) {
3628                        return NO_MEMORY;
3629                    }
3630                    set->availAttrs = newAvail;
3631                    entries = (bag_entry*)(set+1);
3632                    TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3633                                 set, entries, set->availAttrs));
3634                }
3635                if (isInside) {
3636                    // Going in the middle, need to make space.
3637                    memmove(entries+curEntry+1, entries+curEntry,
3638                            sizeof(bag_entry)*(set->numAttrs-curEntry));
3639                    set->numAttrs++;
3640                }
3641                TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3642                             curEntry, newName));
3643            } else {
3644                TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3645                             curEntry, oldName));
3646            }
3647
3648            bag_entry* cur = entries+curEntry;
3649
3650            cur->stringBlock = package->header->index;
3651            cur->map.name.ident = newName;
3652            cur->map.value.copyFrom_dtoh(map->value);
3653            TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3654                         curEntry, cur, cur->stringBlock, cur->map.name.ident,
3655                         cur->map.value.dataType, cur->map.value.data));
3656
3657            // On to the next!
3658            curEntry++;
3659            pos++;
3660            const size_t size = dtohs(map->value.size);
3661            curOff += size + sizeof(*map)-sizeof(map->value);
3662        };
3663        if (curEntry > set->numAttrs) {
3664            set->numAttrs = curEntry;
3665        }
3666    }
3667
3668    // And this is it...
3669    typeSet[e] = set;
3670    if (set) {
3671        if (outTypeSpecFlags != NULL) {
3672            *outTypeSpecFlags = set->typeSpecFlags;
3673        }
3674        *outBag = (bag_entry*)(set+1);
3675        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3676        return set->numAttrs;
3677    }
3678    return BAD_INDEX;
3679}
3680
3681void ResTable::setParameters(const ResTable_config* params)
3682{
3683    mLock.lock();
3684    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3685    mParams = *params;
3686    for (size_t i=0; i<mPackageGroups.size(); i++) {
3687        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3688        mPackageGroups[i]->clearBagCache();
3689    }
3690    mLock.unlock();
3691}
3692
3693void ResTable::getParameters(ResTable_config* params) const
3694{
3695    mLock.lock();
3696    *params = mParams;
3697    mLock.unlock();
3698}
3699
3700struct id_name_map {
3701    uint32_t id;
3702    size_t len;
3703    char16_t name[6];
3704};
3705
3706const static id_name_map ID_NAMES[] = {
3707    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
3708    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
3709    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
3710    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
3711    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
3712    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
3713    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
3714    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
3715    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
3716    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
3717};
3718
3719uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
3720                                     const char16_t* type, size_t typeLen,
3721                                     const char16_t* package,
3722                                     size_t packageLen,
3723                                     uint32_t* outTypeSpecFlags) const
3724{
3725    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
3726
3727    // Check for internal resource identifier as the very first thing, so
3728    // that we will always find them even when there are no resources.
3729    if (name[0] == '^') {
3730        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
3731        size_t len;
3732        for (int i=0; i<N; i++) {
3733            const id_name_map* m = ID_NAMES + i;
3734            len = m->len;
3735            if (len != nameLen) {
3736                continue;
3737            }
3738            for (size_t j=1; j<len; j++) {
3739                if (m->name[j] != name[j]) {
3740                    goto nope;
3741                }
3742            }
3743            if (outTypeSpecFlags) {
3744                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3745            }
3746            return m->id;
3747nope:
3748            ;
3749        }
3750        if (nameLen > 7) {
3751            if (name[1] == 'i' && name[2] == 'n'
3752                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
3753                && name[6] == '_') {
3754                int index = atoi(String8(name + 7, nameLen - 7).string());
3755                if (Res_CHECKID(index)) {
3756                    ALOGW("Array resource index: %d is too large.",
3757                         index);
3758                    return 0;
3759                }
3760                if (outTypeSpecFlags) {
3761                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
3762                }
3763                return  Res_MAKEARRAY(index);
3764            }
3765        }
3766        return 0;
3767    }
3768
3769    if (mError != NO_ERROR) {
3770        return 0;
3771    }
3772
3773    bool fakePublic = false;
3774
3775    // Figure out the package and type we are looking in...
3776
3777    const char16_t* packageEnd = NULL;
3778    const char16_t* typeEnd = NULL;
3779    const char16_t* const nameEnd = name+nameLen;
3780    const char16_t* p = name;
3781    while (p < nameEnd) {
3782        if (*p == ':') packageEnd = p;
3783        else if (*p == '/') typeEnd = p;
3784        p++;
3785    }
3786    if (*name == '@') {
3787        name++;
3788        if (*name == '*') {
3789            fakePublic = true;
3790            name++;
3791        }
3792    }
3793    if (name >= nameEnd) {
3794        return 0;
3795    }
3796
3797    if (packageEnd) {
3798        package = name;
3799        packageLen = packageEnd-name;
3800        name = packageEnd+1;
3801    } else if (!package) {
3802        return 0;
3803    }
3804
3805    if (typeEnd) {
3806        type = name;
3807        typeLen = typeEnd-name;
3808        name = typeEnd+1;
3809    } else if (!type) {
3810        return 0;
3811    }
3812
3813    if (name >= nameEnd) {
3814        return 0;
3815    }
3816    nameLen = nameEnd-name;
3817
3818    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
3819                 String8(type, typeLen).string(),
3820                 String8(name, nameLen).string(),
3821                 String8(package, packageLen).string()));
3822
3823    const size_t NG = mPackageGroups.size();
3824    for (size_t ig=0; ig<NG; ig++) {
3825        const PackageGroup* group = mPackageGroups[ig];
3826
3827        if (strzcmp16(package, packageLen,
3828                      group->name.string(), group->name.size())) {
3829            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
3830            continue;
3831        }
3832
3833        const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
3834        if (ti < 0) {
3835            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
3836            continue;
3837        }
3838
3839        const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
3840        if (ei < 0) {
3841            TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
3842            continue;
3843        }
3844
3845        TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
3846
3847        const Type* const typeConfigs = group->packages[0]->getType(ti);
3848        if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
3849            TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
3850                               String8(group->name).string(), ti));
3851        }
3852
3853        size_t NTC = typeConfigs->configs.size();
3854        for (size_t tci=0; tci<NTC; tci++) {
3855            const ResTable_type* const ty = typeConfigs->configs[tci];
3856            const uint32_t typeOffset = dtohl(ty->entriesStart);
3857
3858            const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
3859            const uint32_t* const eindex = (const uint32_t*)
3860                (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
3861
3862            const size_t NE = dtohl(ty->entryCount);
3863            for (size_t i=0; i<NE; i++) {
3864                uint32_t offset = dtohl(eindex[i]);
3865                if (offset == ResTable_type::NO_ENTRY) {
3866                    continue;
3867                }
3868
3869                offset += typeOffset;
3870
3871                if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
3872                    ALOGW("ResTable_entry at %d is beyond type chunk data %d",
3873                         offset, dtohl(ty->header.size));
3874                    return 0;
3875                }
3876                if ((offset&0x3) != 0) {
3877                    ALOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
3878                         (int)offset, (int)group->id, (int)ti+1, (int)i,
3879                         String8(package, packageLen).string(),
3880                         String8(type, typeLen).string(),
3881                         String8(name, nameLen).string());
3882                    return 0;
3883                }
3884
3885                const ResTable_entry* const entry = (const ResTable_entry*)
3886                    (((const uint8_t*)ty) + offset);
3887                if (dtohs(entry->size) < sizeof(*entry)) {
3888                    ALOGW("ResTable_entry size %d is too small", dtohs(entry->size));
3889                    return BAD_TYPE;
3890                }
3891
3892                TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
3893                                         i, ei, dtohl(entry->key.index)));
3894                if (dtohl(entry->key.index) == (size_t)ei) {
3895                    if (outTypeSpecFlags) {
3896                        *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
3897                        if (fakePublic) {
3898                            *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
3899                        }
3900                    }
3901                    return Res_MAKEID(group->id-1, ti, i);
3902                }
3903            }
3904        }
3905    }
3906
3907    return 0;
3908}
3909
3910bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
3911                                 String16* outPackage,
3912                                 String16* outType,
3913                                 String16* outName,
3914                                 const String16* defType,
3915                                 const String16* defPackage,
3916                                 const char** outErrorMsg,
3917                                 bool* outPublicOnly)
3918{
3919    const char16_t* packageEnd = NULL;
3920    const char16_t* typeEnd = NULL;
3921    const char16_t* p = refStr;
3922    const char16_t* const end = p + refLen;
3923    while (p < end) {
3924        if (*p == ':') packageEnd = p;
3925        else if (*p == '/') {
3926            typeEnd = p;
3927            break;
3928        }
3929        p++;
3930    }
3931    p = refStr;
3932    if (*p == '@') p++;
3933
3934    if (outPublicOnly != NULL) {
3935        *outPublicOnly = true;
3936    }
3937    if (*p == '*') {
3938        p++;
3939        if (outPublicOnly != NULL) {
3940            *outPublicOnly = false;
3941        }
3942    }
3943
3944    if (packageEnd) {
3945        *outPackage = String16(p, packageEnd-p);
3946        p = packageEnd+1;
3947    } else {
3948        if (!defPackage) {
3949            if (outErrorMsg) {
3950                *outErrorMsg = "No resource package specified";
3951            }
3952            return false;
3953        }
3954        *outPackage = *defPackage;
3955    }
3956    if (typeEnd) {
3957        *outType = String16(p, typeEnd-p);
3958        p = typeEnd+1;
3959    } else {
3960        if (!defType) {
3961            if (outErrorMsg) {
3962                *outErrorMsg = "No resource type specified";
3963            }
3964            return false;
3965        }
3966        *outType = *defType;
3967    }
3968    *outName = String16(p, end-p);
3969    if(**outPackage == 0) {
3970        if(outErrorMsg) {
3971            *outErrorMsg = "Resource package cannot be an empty string";
3972        }
3973        return false;
3974    }
3975    if(**outType == 0) {
3976        if(outErrorMsg) {
3977            *outErrorMsg = "Resource type cannot be an empty string";
3978        }
3979        return false;
3980    }
3981    if(**outName == 0) {
3982        if(outErrorMsg) {
3983            *outErrorMsg = "Resource id cannot be an empty string";
3984        }
3985        return false;
3986    }
3987    return true;
3988}
3989
3990static uint32_t get_hex(char c, bool* outError)
3991{
3992    if (c >= '0' && c <= '9') {
3993        return c - '0';
3994    } else if (c >= 'a' && c <= 'f') {
3995        return c - 'a' + 0xa;
3996    } else if (c >= 'A' && c <= 'F') {
3997        return c - 'A' + 0xa;
3998    }
3999    *outError = true;
4000    return 0;
4001}
4002
4003struct unit_entry
4004{
4005    const char* name;
4006    size_t len;
4007    uint8_t type;
4008    uint32_t unit;
4009    float scale;
4010};
4011
4012static const unit_entry unitNames[] = {
4013    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4014    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4015    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4016    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4017    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4018    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4019    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4020    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4021    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4022    { NULL, 0, 0, 0, 0 }
4023};
4024
4025static bool parse_unit(const char* str, Res_value* outValue,
4026                       float* outScale, const char** outEnd)
4027{
4028    const char* end = str;
4029    while (*end != 0 && !isspace((unsigned char)*end)) {
4030        end++;
4031    }
4032    const size_t len = end-str;
4033
4034    const char* realEnd = end;
4035    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4036        realEnd++;
4037    }
4038    if (*realEnd != 0) {
4039        return false;
4040    }
4041
4042    const unit_entry* cur = unitNames;
4043    while (cur->name) {
4044        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4045            outValue->dataType = cur->type;
4046            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4047            *outScale = cur->scale;
4048            *outEnd = end;
4049            //printf("Found unit %s for %s\n", cur->name, str);
4050            return true;
4051        }
4052        cur++;
4053    }
4054
4055    return false;
4056}
4057
4058
4059bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4060{
4061    while (len > 0 && isspace16(*s)) {
4062        s++;
4063        len--;
4064    }
4065
4066    if (len <= 0) {
4067        return false;
4068    }
4069
4070    size_t i = 0;
4071    int32_t val = 0;
4072    bool neg = false;
4073
4074    if (*s == '-') {
4075        neg = true;
4076        i++;
4077    }
4078
4079    if (s[i] < '0' || s[i] > '9') {
4080        return false;
4081    }
4082
4083    // Decimal or hex?
4084    if (s[i] == '0' && s[i+1] == 'x') {
4085        if (outValue)
4086            outValue->dataType = outValue->TYPE_INT_HEX;
4087        i += 2;
4088        bool error = false;
4089        while (i < len && !error) {
4090            val = (val*16) + get_hex(s[i], &error);
4091            i++;
4092        }
4093        if (error) {
4094            return false;
4095        }
4096    } else {
4097        if (outValue)
4098            outValue->dataType = outValue->TYPE_INT_DEC;
4099        while (i < len) {
4100            if (s[i] < '0' || s[i] > '9') {
4101                return false;
4102            }
4103            val = (val*10) + s[i]-'0';
4104            i++;
4105        }
4106    }
4107
4108    if (neg) val = -val;
4109
4110    while (i < len && isspace16(s[i])) {
4111        i++;
4112    }
4113
4114    if (i == len) {
4115        if (outValue)
4116            outValue->data = val;
4117        return true;
4118    }
4119
4120    return false;
4121}
4122
4123bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4124{
4125    while (len > 0 && isspace16(*s)) {
4126        s++;
4127        len--;
4128    }
4129
4130    if (len <= 0) {
4131        return false;
4132    }
4133
4134    char buf[128];
4135    int i=0;
4136    while (len > 0 && *s != 0 && i < 126) {
4137        if (*s > 255) {
4138            return false;
4139        }
4140        buf[i++] = *s++;
4141        len--;
4142    }
4143
4144    if (len > 0) {
4145        return false;
4146    }
4147    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4148        return false;
4149    }
4150
4151    buf[i] = 0;
4152    const char* end;
4153    float f = strtof(buf, (char**)&end);
4154
4155    if (*end != 0 && !isspace((unsigned char)*end)) {
4156        // Might be a unit...
4157        float scale;
4158        if (parse_unit(end, outValue, &scale, &end)) {
4159            f *= scale;
4160            const bool neg = f < 0;
4161            if (neg) f = -f;
4162            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4163            uint32_t radix;
4164            uint32_t shift;
4165            if ((bits&0x7fffff) == 0) {
4166                // Always use 23p0 if there is no fraction, just to make
4167                // things easier to read.
4168                radix = Res_value::COMPLEX_RADIX_23p0;
4169                shift = 23;
4170            } else if ((bits&0xffffffffff800000LL) == 0) {
4171                // Magnitude is zero -- can fit in 0 bits of precision.
4172                radix = Res_value::COMPLEX_RADIX_0p23;
4173                shift = 0;
4174            } else if ((bits&0xffffffff80000000LL) == 0) {
4175                // Magnitude can fit in 8 bits of precision.
4176                radix = Res_value::COMPLEX_RADIX_8p15;
4177                shift = 8;
4178            } else if ((bits&0xffffff8000000000LL) == 0) {
4179                // Magnitude can fit in 16 bits of precision.
4180                radix = Res_value::COMPLEX_RADIX_16p7;
4181                shift = 16;
4182            } else {
4183                // Magnitude needs entire range, so no fractional part.
4184                radix = Res_value::COMPLEX_RADIX_23p0;
4185                shift = 23;
4186            }
4187            int32_t mantissa = (int32_t)(
4188                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4189            if (neg) {
4190                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4191            }
4192            outValue->data |=
4193                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4194                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4195            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4196            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4197            //       radix, shift, outValue->data);
4198            return true;
4199        }
4200        return false;
4201    }
4202
4203    while (*end != 0 && isspace((unsigned char)*end)) {
4204        end++;
4205    }
4206
4207    if (*end == 0) {
4208        if (outValue) {
4209            outValue->dataType = outValue->TYPE_FLOAT;
4210            *(float*)(&outValue->data) = f;
4211            return true;
4212        }
4213    }
4214
4215    return false;
4216}
4217
4218bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4219                             const char16_t* s, size_t len,
4220                             bool preserveSpaces, bool coerceType,
4221                             uint32_t attrID,
4222                             const String16* defType,
4223                             const String16* defPackage,
4224                             Accessor* accessor,
4225                             void* accessorCookie,
4226                             uint32_t attrType,
4227                             bool enforcePrivate) const
4228{
4229    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4230    const char* errorMsg = NULL;
4231
4232    outValue->size = sizeof(Res_value);
4233    outValue->res0 = 0;
4234
4235    // First strip leading/trailing whitespace.  Do this before handling
4236    // escapes, so they can be used to force whitespace into the string.
4237    if (!preserveSpaces) {
4238        while (len > 0 && isspace16(*s)) {
4239            s++;
4240            len--;
4241        }
4242        while (len > 0 && isspace16(s[len-1])) {
4243            len--;
4244        }
4245        // If the string ends with '\', then we keep the space after it.
4246        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4247            len++;
4248        }
4249    }
4250
4251    //printf("Value for: %s\n", String8(s, len).string());
4252
4253    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4254    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4255    bool fromAccessor = false;
4256    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4257        const ssize_t p = getResourcePackageIndex(attrID);
4258        const bag_entry* bag;
4259        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4260        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4261        if (cnt >= 0) {
4262            while (cnt > 0) {
4263                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4264                switch (bag->map.name.ident) {
4265                case ResTable_map::ATTR_TYPE:
4266                    attrType = bag->map.value.data;
4267                    break;
4268                case ResTable_map::ATTR_MIN:
4269                    attrMin = bag->map.value.data;
4270                    break;
4271                case ResTable_map::ATTR_MAX:
4272                    attrMax = bag->map.value.data;
4273                    break;
4274                case ResTable_map::ATTR_L10N:
4275                    l10nReq = bag->map.value.data;
4276                    break;
4277                }
4278                bag++;
4279                cnt--;
4280            }
4281            unlockBag(bag);
4282        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4283            fromAccessor = true;
4284            if (attrType == ResTable_map::TYPE_ENUM
4285                    || attrType == ResTable_map::TYPE_FLAGS
4286                    || attrType == ResTable_map::TYPE_INTEGER) {
4287                accessor->getAttributeMin(attrID, &attrMin);
4288                accessor->getAttributeMax(attrID, &attrMax);
4289            }
4290            if (localizationSetting) {
4291                l10nReq = accessor->getAttributeL10N(attrID);
4292            }
4293        }
4294    }
4295
4296    const bool canStringCoerce =
4297        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4298
4299    if (*s == '@') {
4300        outValue->dataType = outValue->TYPE_REFERENCE;
4301
4302        // Note: we don't check attrType here because the reference can
4303        // be to any other type; we just need to count on the client making
4304        // sure the referenced type is correct.
4305
4306        //printf("Looking up ref: %s\n", String8(s, len).string());
4307
4308        // It's a reference!
4309        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4310            outValue->data = 0;
4311            return true;
4312        } else {
4313            bool createIfNotFound = false;
4314            const char16_t* resourceRefName;
4315            int resourceNameLen;
4316            if (len > 2 && s[1] == '+') {
4317                createIfNotFound = true;
4318                resourceRefName = s + 2;
4319                resourceNameLen = len - 2;
4320            } else if (len > 2 && s[1] == '*') {
4321                enforcePrivate = false;
4322                resourceRefName = s + 2;
4323                resourceNameLen = len - 2;
4324            } else {
4325                createIfNotFound = false;
4326                resourceRefName = s + 1;
4327                resourceNameLen = len - 1;
4328            }
4329            String16 package, type, name;
4330            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4331                                   defType, defPackage, &errorMsg)) {
4332                if (accessor != NULL) {
4333                    accessor->reportError(accessorCookie, errorMsg);
4334                }
4335                return false;
4336            }
4337
4338            uint32_t specFlags = 0;
4339            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4340                    type.size(), package.string(), package.size(), &specFlags);
4341            if (rid != 0) {
4342                if (enforcePrivate) {
4343                    if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4344                        if (accessor != NULL) {
4345                            accessor->reportError(accessorCookie, "Resource is not public.");
4346                        }
4347                        return false;
4348                    }
4349                }
4350                if (!accessor) {
4351                    outValue->data = rid;
4352                    return true;
4353                }
4354                rid = Res_MAKEID(
4355                    accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4356                    Res_GETTYPE(rid), Res_GETENTRY(rid));
4357                TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4358                       String8(package).string(), String8(type).string(),
4359                       String8(name).string(), rid));
4360                outValue->data = rid;
4361                return true;
4362            }
4363
4364            if (accessor) {
4365                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4366                                                                       createIfNotFound);
4367                if (rid != 0) {
4368                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4369                           String8(package).string(), String8(type).string(),
4370                           String8(name).string(), rid));
4371                    outValue->data = rid;
4372                    return true;
4373                }
4374            }
4375        }
4376
4377        if (accessor != NULL) {
4378            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4379        }
4380        return false;
4381    }
4382
4383    // if we got to here, and localization is required and it's not a reference,
4384    // complain and bail.
4385    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4386        if (localizationSetting) {
4387            if (accessor != NULL) {
4388                accessor->reportError(accessorCookie, "This attribute must be localized.");
4389            }
4390        }
4391    }
4392
4393    if (*s == '#') {
4394        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4395        uint32_t color = 0;
4396        bool error = false;
4397        if (len == 4) {
4398            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4399            color |= 0xFF000000;
4400            color |= get_hex(s[1], &error) << 20;
4401            color |= get_hex(s[1], &error) << 16;
4402            color |= get_hex(s[2], &error) << 12;
4403            color |= get_hex(s[2], &error) << 8;
4404            color |= get_hex(s[3], &error) << 4;
4405            color |= get_hex(s[3], &error);
4406        } else if (len == 5) {
4407            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4408            color |= get_hex(s[1], &error) << 28;
4409            color |= get_hex(s[1], &error) << 24;
4410            color |= get_hex(s[2], &error) << 20;
4411            color |= get_hex(s[2], &error) << 16;
4412            color |= get_hex(s[3], &error) << 12;
4413            color |= get_hex(s[3], &error) << 8;
4414            color |= get_hex(s[4], &error) << 4;
4415            color |= get_hex(s[4], &error);
4416        } else if (len == 7) {
4417            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4418            color |= 0xFF000000;
4419            color |= get_hex(s[1], &error) << 20;
4420            color |= get_hex(s[2], &error) << 16;
4421            color |= get_hex(s[3], &error) << 12;
4422            color |= get_hex(s[4], &error) << 8;
4423            color |= get_hex(s[5], &error) << 4;
4424            color |= get_hex(s[6], &error);
4425        } else if (len == 9) {
4426            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4427            color |= get_hex(s[1], &error) << 28;
4428            color |= get_hex(s[2], &error) << 24;
4429            color |= get_hex(s[3], &error) << 20;
4430            color |= get_hex(s[4], &error) << 16;
4431            color |= get_hex(s[5], &error) << 12;
4432            color |= get_hex(s[6], &error) << 8;
4433            color |= get_hex(s[7], &error) << 4;
4434            color |= get_hex(s[8], &error);
4435        } else {
4436            error = true;
4437        }
4438        if (!error) {
4439            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4440                if (!canStringCoerce) {
4441                    if (accessor != NULL) {
4442                        accessor->reportError(accessorCookie,
4443                                "Color types not allowed");
4444                    }
4445                    return false;
4446                }
4447            } else {
4448                outValue->data = color;
4449                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4450                return true;
4451            }
4452        } else {
4453            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4454                if (accessor != NULL) {
4455                    accessor->reportError(accessorCookie, "Color value not valid --"
4456                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4457                }
4458                #if 0
4459                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4460                        "Resource File", //(const char*)in->getPrintableSource(),
4461                        String8(*curTag).string(),
4462                        String8(s, len).string());
4463                #endif
4464                return false;
4465            }
4466        }
4467    }
4468
4469    if (*s == '?') {
4470        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4471
4472        // Note: we don't check attrType here because the reference can
4473        // be to any other type; we just need to count on the client making
4474        // sure the referenced type is correct.
4475
4476        //printf("Looking up attr: %s\n", String8(s, len).string());
4477
4478        static const String16 attr16("attr");
4479        String16 package, type, name;
4480        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4481                               &attr16, defPackage, &errorMsg)) {
4482            if (accessor != NULL) {
4483                accessor->reportError(accessorCookie, errorMsg);
4484            }
4485            return false;
4486        }
4487
4488        //printf("Pkg: %s, Type: %s, Name: %s\n",
4489        //       String8(package).string(), String8(type).string(),
4490        //       String8(name).string());
4491        uint32_t specFlags = 0;
4492        uint32_t rid =
4493            identifierForName(name.string(), name.size(),
4494                              type.string(), type.size(),
4495                              package.string(), package.size(), &specFlags);
4496        if (rid != 0) {
4497            if (enforcePrivate) {
4498                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4499                    if (accessor != NULL) {
4500                        accessor->reportError(accessorCookie, "Attribute is not public.");
4501                    }
4502                    return false;
4503                }
4504            }
4505            if (!accessor) {
4506                outValue->data = rid;
4507                return true;
4508            }
4509            rid = Res_MAKEID(
4510                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4511                Res_GETTYPE(rid), Res_GETENTRY(rid));
4512            //printf("Incl %s:%s/%s: 0x%08x\n",
4513            //       String8(package).string(), String8(type).string(),
4514            //       String8(name).string(), rid);
4515            outValue->data = rid;
4516            return true;
4517        }
4518
4519        if (accessor) {
4520            uint32_t rid = accessor->getCustomResource(package, type, name);
4521            if (rid != 0) {
4522                //printf("Mine %s:%s/%s: 0x%08x\n",
4523                //       String8(package).string(), String8(type).string(),
4524                //       String8(name).string(), rid);
4525                outValue->data = rid;
4526                return true;
4527            }
4528        }
4529
4530        if (accessor != NULL) {
4531            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4532        }
4533        return false;
4534    }
4535
4536    if (stringToInt(s, len, outValue)) {
4537        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4538            // If this type does not allow integers, but does allow floats,
4539            // fall through on this error case because the float type should
4540            // be able to accept any integer value.
4541            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4542                if (accessor != NULL) {
4543                    accessor->reportError(accessorCookie, "Integer types not allowed");
4544                }
4545                return false;
4546            }
4547        } else {
4548            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4549                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4550                if (accessor != NULL) {
4551                    accessor->reportError(accessorCookie, "Integer value out of range");
4552                }
4553                return false;
4554            }
4555            return true;
4556        }
4557    }
4558
4559    if (stringToFloat(s, len, outValue)) {
4560        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4561            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4562                return true;
4563            }
4564            if (!canStringCoerce) {
4565                if (accessor != NULL) {
4566                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4567                }
4568                return false;
4569            }
4570        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4571            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4572                return true;
4573            }
4574            if (!canStringCoerce) {
4575                if (accessor != NULL) {
4576                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4577                }
4578                return false;
4579            }
4580        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4581            if (!canStringCoerce) {
4582                if (accessor != NULL) {
4583                    accessor->reportError(accessorCookie, "Float types not allowed");
4584                }
4585                return false;
4586            }
4587        } else {
4588            return true;
4589        }
4590    }
4591
4592    if (len == 4) {
4593        if ((s[0] == 't' || s[0] == 'T') &&
4594            (s[1] == 'r' || s[1] == 'R') &&
4595            (s[2] == 'u' || s[2] == 'U') &&
4596            (s[3] == 'e' || s[3] == 'E')) {
4597            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4598                if (!canStringCoerce) {
4599                    if (accessor != NULL) {
4600                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4601                    }
4602                    return false;
4603                }
4604            } else {
4605                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4606                outValue->data = (uint32_t)-1;
4607                return true;
4608            }
4609        }
4610    }
4611
4612    if (len == 5) {
4613        if ((s[0] == 'f' || s[0] == 'F') &&
4614            (s[1] == 'a' || s[1] == 'A') &&
4615            (s[2] == 'l' || s[2] == 'L') &&
4616            (s[3] == 's' || s[3] == 'S') &&
4617            (s[4] == 'e' || s[4] == 'E')) {
4618            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4619                if (!canStringCoerce) {
4620                    if (accessor != NULL) {
4621                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4622                    }
4623                    return false;
4624                }
4625            } else {
4626                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4627                outValue->data = 0;
4628                return true;
4629            }
4630        }
4631    }
4632
4633    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4634        const ssize_t p = getResourcePackageIndex(attrID);
4635        const bag_entry* bag;
4636        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4637        //printf("Got %d for enum\n", cnt);
4638        if (cnt >= 0) {
4639            resource_name rname;
4640            while (cnt > 0) {
4641                if (!Res_INTERNALID(bag->map.name.ident)) {
4642                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4643                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4644                        #if 0
4645                        printf("Matching %s against %s (0x%08x)\n",
4646                               String8(s, len).string(),
4647                               String8(rname.name, rname.nameLen).string(),
4648                               bag->map.name.ident);
4649                        #endif
4650                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4651                            outValue->dataType = bag->map.value.dataType;
4652                            outValue->data = bag->map.value.data;
4653                            unlockBag(bag);
4654                            return true;
4655                        }
4656                    }
4657
4658                }
4659                bag++;
4660                cnt--;
4661            }
4662            unlockBag(bag);
4663        }
4664
4665        if (fromAccessor) {
4666            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4667                return true;
4668            }
4669        }
4670    }
4671
4672    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4673        const ssize_t p = getResourcePackageIndex(attrID);
4674        const bag_entry* bag;
4675        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4676        //printf("Got %d for flags\n", cnt);
4677        if (cnt >= 0) {
4678            bool failed = false;
4679            resource_name rname;
4680            outValue->dataType = Res_value::TYPE_INT_HEX;
4681            outValue->data = 0;
4682            const char16_t* end = s + len;
4683            const char16_t* pos = s;
4684            while (pos < end && !failed) {
4685                const char16_t* start = pos;
4686                pos++;
4687                while (pos < end && *pos != '|') {
4688                    pos++;
4689                }
4690                //printf("Looking for: %s\n", String8(start, pos-start).string());
4691                const bag_entry* bagi = bag;
4692                ssize_t i;
4693                for (i=0; i<cnt; i++, bagi++) {
4694                    if (!Res_INTERNALID(bagi->map.name.ident)) {
4695                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
4696                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
4697                            #if 0
4698                            printf("Matching %s against %s (0x%08x)\n",
4699                                   String8(start,pos-start).string(),
4700                                   String8(rname.name, rname.nameLen).string(),
4701                                   bagi->map.name.ident);
4702                            #endif
4703                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4704                                outValue->data |= bagi->map.value.data;
4705                                break;
4706                            }
4707                        }
4708                    }
4709                }
4710                if (i >= cnt) {
4711                    // Didn't find this flag identifier.
4712                    failed = true;
4713                }
4714                if (pos < end) {
4715                    pos++;
4716                }
4717            }
4718            unlockBag(bag);
4719            if (!failed) {
4720                //printf("Final flag value: 0x%lx\n", outValue->data);
4721                return true;
4722            }
4723        }
4724
4725
4726        if (fromAccessor) {
4727            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
4728                //printf("Final flag value: 0x%lx\n", outValue->data);
4729                return true;
4730            }
4731        }
4732    }
4733
4734    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
4735        if (accessor != NULL) {
4736            accessor->reportError(accessorCookie, "String types not allowed");
4737        }
4738        return false;
4739    }
4740
4741    // Generic string handling...
4742    outValue->dataType = outValue->TYPE_STRING;
4743    if (outString) {
4744        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
4745        if (accessor != NULL) {
4746            accessor->reportError(accessorCookie, errorMsg);
4747        }
4748        return failed;
4749    }
4750
4751    return true;
4752}
4753
4754bool ResTable::collectString(String16* outString,
4755                             const char16_t* s, size_t len,
4756                             bool preserveSpaces,
4757                             const char** outErrorMsg,
4758                             bool append)
4759{
4760    String16 tmp;
4761
4762    char quoted = 0;
4763    const char16_t* p = s;
4764    while (p < (s+len)) {
4765        while (p < (s+len)) {
4766            const char16_t c = *p;
4767            if (c == '\\') {
4768                break;
4769            }
4770            if (!preserveSpaces) {
4771                if (quoted == 0 && isspace16(c)
4772                    && (c != ' ' || isspace16(*(p+1)))) {
4773                    break;
4774                }
4775                if (c == '"' && (quoted == 0 || quoted == '"')) {
4776                    break;
4777                }
4778                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
4779                    /*
4780                     * In practice, when people write ' instead of \'
4781                     * in a string, they are doing it by accident
4782                     * instead of really meaning to use ' as a quoting
4783                     * character.  Warn them so they don't lose it.
4784                     */
4785                    if (outErrorMsg) {
4786                        *outErrorMsg = "Apostrophe not preceded by \\";
4787                    }
4788                    return false;
4789                }
4790            }
4791            p++;
4792        }
4793        if (p < (s+len)) {
4794            if (p > s) {
4795                tmp.append(String16(s, p-s));
4796            }
4797            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
4798                if (quoted == 0) {
4799                    quoted = *p;
4800                } else {
4801                    quoted = 0;
4802                }
4803                p++;
4804            } else if (!preserveSpaces && isspace16(*p)) {
4805                // Space outside of a quote -- consume all spaces and
4806                // leave a single plain space char.
4807                tmp.append(String16(" "));
4808                p++;
4809                while (p < (s+len) && isspace16(*p)) {
4810                    p++;
4811                }
4812            } else if (*p == '\\') {
4813                p++;
4814                if (p < (s+len)) {
4815                    switch (*p) {
4816                    case 't':
4817                        tmp.append(String16("\t"));
4818                        break;
4819                    case 'n':
4820                        tmp.append(String16("\n"));
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 '\\':
4838                        tmp.append(String16("\\"));
4839                        break;
4840                    case 'u':
4841                    {
4842                        char16_t chr = 0;
4843                        int i = 0;
4844                        while (i < 4 && p[1] != 0) {
4845                            p++;
4846                            i++;
4847                            int c;
4848                            if (*p >= '0' && *p <= '9') {
4849                                c = *p - '0';
4850                            } else if (*p >= 'a' && *p <= 'f') {
4851                                c = *p - 'a' + 10;
4852                            } else if (*p >= 'A' && *p <= 'F') {
4853                                c = *p - 'A' + 10;
4854                            } else {
4855                                if (outErrorMsg) {
4856                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
4857                                }
4858                                return false;
4859                            }
4860                            chr = (chr<<4) | c;
4861                        }
4862                        tmp.append(String16(&chr, 1));
4863                    } break;
4864                    default:
4865                        // ignore unknown escape chars.
4866                        break;
4867                    }
4868                    p++;
4869                }
4870            }
4871            len -= (p-s);
4872            s = p;
4873        }
4874    }
4875
4876    if (tmp.size() != 0) {
4877        if (len > 0) {
4878            tmp.append(String16(s, len));
4879        }
4880        if (append) {
4881            outString->append(tmp);
4882        } else {
4883            outString->setTo(tmp);
4884        }
4885    } else {
4886        if (append) {
4887            outString->append(String16(s, len));
4888        } else {
4889            outString->setTo(s, len);
4890        }
4891    }
4892
4893    return true;
4894}
4895
4896size_t ResTable::getBasePackageCount() const
4897{
4898    if (mError != NO_ERROR) {
4899        return 0;
4900    }
4901    return mPackageGroups.size();
4902}
4903
4904const char16_t* ResTable::getBasePackageName(size_t idx) const
4905{
4906    if (mError != NO_ERROR) {
4907        return 0;
4908    }
4909    LOG_FATAL_IF(idx >= mPackageGroups.size(),
4910                 "Requested package index %d past package count %d",
4911                 (int)idx, (int)mPackageGroups.size());
4912    return mPackageGroups[idx]->name.string();
4913}
4914
4915uint32_t ResTable::getBasePackageId(size_t idx) const
4916{
4917    if (mError != NO_ERROR) {
4918        return 0;
4919    }
4920    LOG_FATAL_IF(idx >= mPackageGroups.size(),
4921                 "Requested package index %d past package count %d",
4922                 (int)idx, (int)mPackageGroups.size());
4923    return mPackageGroups[idx]->id;
4924}
4925
4926size_t ResTable::getTableCount() const
4927{
4928    return mHeaders.size();
4929}
4930
4931const ResStringPool* ResTable::getTableStringBlock(size_t index) const
4932{
4933    return &mHeaders[index]->values;
4934}
4935
4936void* ResTable::getTableCookie(size_t index) const
4937{
4938    return mHeaders[index]->cookie;
4939}
4940
4941void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
4942{
4943    const size_t I = mPackageGroups.size();
4944    for (size_t i=0; i<I; i++) {
4945        const PackageGroup* packageGroup = mPackageGroups[i];
4946        const size_t J = packageGroup->packages.size();
4947        for (size_t j=0; j<J; j++) {
4948            const Package* package = packageGroup->packages[j];
4949            const size_t K = package->types.size();
4950            for (size_t k=0; k<K; k++) {
4951                const Type* type = package->types[k];
4952                if (type == NULL) continue;
4953                const size_t L = type->configs.size();
4954                for (size_t l=0; l<L; l++) {
4955                    const ResTable_type* config = type->configs[l];
4956                    const ResTable_config* cfg = &config->config;
4957                    // only insert unique
4958                    const size_t M = configs->size();
4959                    size_t m;
4960                    for (m=0; m<M; m++) {
4961                        if (0 == (*configs)[m].compare(*cfg)) {
4962                            break;
4963                        }
4964                    }
4965                    // if we didn't find it
4966                    if (m == M) {
4967                        configs->add(*cfg);
4968                    }
4969                }
4970            }
4971        }
4972    }
4973}
4974
4975void ResTable::getLocales(Vector<String8>* locales) const
4976{
4977    Vector<ResTable_config> configs;
4978    ALOGV("calling getConfigurations");
4979    getConfigurations(&configs);
4980    ALOGV("called getConfigurations size=%d", (int)configs.size());
4981    const size_t I = configs.size();
4982    for (size_t i=0; i<I; i++) {
4983        char locale[6];
4984        configs[i].getLocale(locale);
4985        const size_t J = locales->size();
4986        size_t j;
4987        for (j=0; j<J; j++) {
4988            if (0 == strcmp(locale, (*locales)[j].string())) {
4989                break;
4990            }
4991        }
4992        if (j == J) {
4993            locales->add(String8(locale));
4994        }
4995    }
4996}
4997
4998ssize_t ResTable::getEntry(
4999    const Package* package, int typeIndex, int entryIndex,
5000    const ResTable_config* config,
5001    const ResTable_type** outType, const ResTable_entry** outEntry,
5002    const Type** outTypeClass) const
5003{
5004    ALOGV("Getting entry from package %p\n", package);
5005    const ResTable_package* const pkg = package->package;
5006
5007    const Type* allTypes = package->getType(typeIndex);
5008    ALOGV("allTypes=%p\n", allTypes);
5009    if (allTypes == NULL) {
5010        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5011        return 0;
5012    }
5013
5014    if ((size_t)entryIndex >= allTypes->entryCount) {
5015        ALOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
5016            entryIndex, (int)allTypes->entryCount);
5017        return BAD_TYPE;
5018    }
5019
5020    const ResTable_type* type = NULL;
5021    uint32_t offset = ResTable_type::NO_ENTRY;
5022    ResTable_config bestConfig;
5023    memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
5024
5025    const size_t NT = allTypes->configs.size();
5026    for (size_t i=0; i<NT; i++) {
5027        const ResTable_type* const thisType = allTypes->configs[i];
5028        if (thisType == NULL) continue;
5029
5030        ResTable_config thisConfig;
5031        thisConfig.copyFromDtoH(thisType->config);
5032
5033        TABLE_GETENTRY(ALOGI("Match entry 0x%x in type 0x%x (sz 0x%x): %s\n",
5034                           entryIndex, typeIndex+1, dtohl(thisType->config.size),
5035                           thisConfig.toString().string()));
5036
5037        // Check to make sure this one is valid for the current parameters.
5038        if (config && !thisConfig.match(*config)) {
5039            TABLE_GETENTRY(ALOGI("Does not match config!\n"));
5040            continue;
5041        }
5042
5043        // Check if there is the desired entry in this type.
5044
5045        const uint8_t* const end = ((const uint8_t*)thisType)
5046            + dtohl(thisType->header.size);
5047        const uint32_t* const eindex = (const uint32_t*)
5048            (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
5049
5050        uint32_t thisOffset = dtohl(eindex[entryIndex]);
5051        if (thisOffset == ResTable_type::NO_ENTRY) {
5052            TABLE_GETENTRY(ALOGI("Skipping because it is not defined!\n"));
5053            continue;
5054        }
5055
5056        if (type != NULL) {
5057            // Check if this one is less specific than the last found.  If so,
5058            // we will skip it.  We check starting with things we most care
5059            // about to those we least care about.
5060            if (!thisConfig.isBetterThan(bestConfig, config)) {
5061                TABLE_GETENTRY(ALOGI("This config is worse than last!\n"));
5062                continue;
5063            }
5064        }
5065
5066        type = thisType;
5067        offset = thisOffset;
5068        bestConfig = thisConfig;
5069        TABLE_GETENTRY(ALOGI("Best entry so far -- using it!\n"));
5070        if (!config) break;
5071    }
5072
5073    if (type == NULL) {
5074        TABLE_GETENTRY(ALOGI("No value found for requested entry!\n"));
5075        return BAD_INDEX;
5076    }
5077
5078    offset += dtohl(type->entriesStart);
5079    TABLE_NOISY(aout << "Looking in resource table " << package->header->header
5080          << ", typeOff="
5081          << (void*)(((const char*)type)-((const char*)package->header->header))
5082          << ", offset=" << (void*)offset << endl);
5083
5084    if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
5085        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5086             offset, dtohl(type->header.size));
5087        return BAD_TYPE;
5088    }
5089    if ((offset&0x3) != 0) {
5090        ALOGW("ResTable_entry at 0x%x is not on an integer boundary",
5091             offset);
5092        return BAD_TYPE;
5093    }
5094
5095    const ResTable_entry* const entry = (const ResTable_entry*)
5096        (((const uint8_t*)type) + offset);
5097    if (dtohs(entry->size) < sizeof(*entry)) {
5098        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5099        return BAD_TYPE;
5100    }
5101
5102    *outType = type;
5103    *outEntry = entry;
5104    if (outTypeClass != NULL) {
5105        *outTypeClass = allTypes;
5106    }
5107    return offset + dtohs(entry->size);
5108}
5109
5110status_t ResTable::parsePackage(const ResTable_package* const pkg,
5111                                const Header* const header, uint32_t idmap_id)
5112{
5113    const uint8_t* base = (const uint8_t*)pkg;
5114    status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
5115                                  header->dataEnd, "ResTable_package");
5116    if (err != NO_ERROR) {
5117        return (mError=err);
5118    }
5119
5120    const size_t pkgSize = dtohl(pkg->header.size);
5121
5122    if (dtohl(pkg->typeStrings) >= pkgSize) {
5123        ALOGW("ResTable_package type strings at %p are past chunk size %p.",
5124             (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
5125        return (mError=BAD_TYPE);
5126    }
5127    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5128        ALOGW("ResTable_package type strings at %p is not on an integer boundary.",
5129             (void*)dtohl(pkg->typeStrings));
5130        return (mError=BAD_TYPE);
5131    }
5132    if (dtohl(pkg->keyStrings) >= pkgSize) {
5133        ALOGW("ResTable_package key strings at %p are past chunk size %p.",
5134             (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
5135        return (mError=BAD_TYPE);
5136    }
5137    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5138        ALOGW("ResTable_package key strings at %p is not on an integer boundary.",
5139             (void*)dtohl(pkg->keyStrings));
5140        return (mError=BAD_TYPE);
5141    }
5142
5143    Package* package = NULL;
5144    PackageGroup* group = NULL;
5145    uint32_t id = idmap_id != 0 ? idmap_id : dtohl(pkg->id);
5146    // If at this point id == 0, pkg is an overlay package without a
5147    // corresponding idmap. During regular usage, overlay packages are
5148    // always loaded alongside their idmaps, but during idmap creation
5149    // the package is temporarily loaded by itself.
5150    if (id < 256) {
5151
5152        package = new Package(this, header, pkg);
5153        if (package == NULL) {
5154            return (mError=NO_MEMORY);
5155        }
5156
5157        size_t idx = mPackageMap[id];
5158        if (idx == 0) {
5159            idx = mPackageGroups.size()+1;
5160
5161            char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5162            strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5163            group = new PackageGroup(this, String16(tmpName), id);
5164            if (group == NULL) {
5165                delete package;
5166                return (mError=NO_MEMORY);
5167            }
5168
5169            err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5170                                           header->dataEnd-(base+dtohl(pkg->typeStrings)));
5171            if (err != NO_ERROR) {
5172                delete group;
5173                delete package;
5174                return (mError=err);
5175            }
5176            err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5177                                          header->dataEnd-(base+dtohl(pkg->keyStrings)));
5178            if (err != NO_ERROR) {
5179                delete group;
5180                delete package;
5181                return (mError=err);
5182            }
5183
5184            //printf("Adding new package id %d at index %d\n", id, idx);
5185            err = mPackageGroups.add(group);
5186            if (err < NO_ERROR) {
5187                return (mError=err);
5188            }
5189            group->basePackage = package;
5190
5191            mPackageMap[id] = (uint8_t)idx;
5192        } else {
5193            group = mPackageGroups.itemAt(idx-1);
5194            if (group == NULL) {
5195                return (mError=UNKNOWN_ERROR);
5196            }
5197        }
5198        err = group->packages.add(package);
5199        if (err < NO_ERROR) {
5200            return (mError=err);
5201        }
5202    } else {
5203        LOG_ALWAYS_FATAL("Package id out of range");
5204        return NO_ERROR;
5205    }
5206
5207
5208    // Iterate through all chunks.
5209    size_t curPackage = 0;
5210
5211    const ResChunk_header* chunk =
5212        (const ResChunk_header*)(((const uint8_t*)pkg)
5213                                 + dtohs(pkg->header.headerSize));
5214    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5215    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5216           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5217        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5218                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5219                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5220        const size_t csize = dtohl(chunk->size);
5221        const uint16_t ctype = dtohs(chunk->type);
5222        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5223            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5224            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5225                                 endPos, "ResTable_typeSpec");
5226            if (err != NO_ERROR) {
5227                return (mError=err);
5228            }
5229
5230            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5231
5232            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5233                                    (void*)(base-(const uint8_t*)chunk),
5234                                    dtohs(typeSpec->header.type),
5235                                    dtohs(typeSpec->header.headerSize),
5236                                    (void*)typeSize));
5237            // look for block overrun or int overflow when multiplying by 4
5238            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5239                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
5240                    > typeSpecSize)) {
5241                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5242                     (void*)(dtohs(typeSpec->header.headerSize)
5243                             +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
5244                     (void*)typeSpecSize);
5245                return (mError=BAD_TYPE);
5246            }
5247
5248            if (typeSpec->id == 0) {
5249                ALOGW("ResTable_type has an id of 0.");
5250                return (mError=BAD_TYPE);
5251            }
5252
5253            while (package->types.size() < typeSpec->id) {
5254                package->types.add(NULL);
5255            }
5256            Type* t = package->types[typeSpec->id-1];
5257            if (t == NULL) {
5258                t = new Type(header, package, dtohl(typeSpec->entryCount));
5259                package->types.editItemAt(typeSpec->id-1) = t;
5260            } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
5261                ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5262                    (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
5263                return (mError=BAD_TYPE);
5264            }
5265            t->typeSpecFlags = (const uint32_t*)(
5266                    ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5267            t->typeSpec = typeSpec;
5268
5269        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5270            const ResTable_type* type = (const ResTable_type*)(chunk);
5271            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5272                                 endPos, "ResTable_type");
5273            if (err != NO_ERROR) {
5274                return (mError=err);
5275            }
5276
5277            const size_t typeSize = dtohl(type->header.size);
5278
5279            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5280                                    (void*)(base-(const uint8_t*)chunk),
5281                                    dtohs(type->header.type),
5282                                    dtohs(type->header.headerSize),
5283                                    (void*)typeSize));
5284            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
5285                > typeSize) {
5286                ALOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
5287                     (void*)(dtohs(type->header.headerSize)
5288                             +(sizeof(uint32_t)*dtohl(type->entryCount))),
5289                     (void*)typeSize);
5290                return (mError=BAD_TYPE);
5291            }
5292            if (dtohl(type->entryCount) != 0
5293                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5294                ALOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
5295                     (void*)dtohl(type->entriesStart), (void*)typeSize);
5296                return (mError=BAD_TYPE);
5297            }
5298            if (type->id == 0) {
5299                ALOGW("ResTable_type has an id of 0.");
5300                return (mError=BAD_TYPE);
5301            }
5302
5303            while (package->types.size() < type->id) {
5304                package->types.add(NULL);
5305            }
5306            Type* t = package->types[type->id-1];
5307            if (t == NULL) {
5308                t = new Type(header, package, dtohl(type->entryCount));
5309                package->types.editItemAt(type->id-1) = t;
5310            } else if (dtohl(type->entryCount) != t->entryCount) {
5311                ALOGW("ResTable_type entry count inconsistent: given %d, previously %d",
5312                    (int)dtohl(type->entryCount), (int)t->entryCount);
5313                return (mError=BAD_TYPE);
5314            }
5315
5316            TABLE_GETENTRY(
5317                ResTable_config thisConfig;
5318                thisConfig.copyFromDtoH(type->config);
5319                ALOGI("Adding config to type %d: %s\n",
5320                      type->id, thisConfig.toString().string()));
5321            t->configs.add(type);
5322        } else {
5323            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5324                                          endPos, "ResTable_package:unknown");
5325            if (err != NO_ERROR) {
5326                return (mError=err);
5327            }
5328        }
5329        chunk = (const ResChunk_header*)
5330            (((const uint8_t*)chunk) + csize);
5331    }
5332
5333    if (group->typeCount == 0) {
5334        group->typeCount = package->types.size();
5335    }
5336
5337    return NO_ERROR;
5338}
5339
5340status_t ResTable::createIdmap(const ResTable& overlay, uint32_t originalCrc, uint32_t overlayCrc,
5341                               void** outData, size_t* outSize) const
5342{
5343    // see README for details on the format of map
5344    if (mPackageGroups.size() == 0) {
5345        return UNKNOWN_ERROR;
5346    }
5347    if (mPackageGroups[0]->packages.size() == 0) {
5348        return UNKNOWN_ERROR;
5349    }
5350
5351    Vector<Vector<uint32_t> > map;
5352    const PackageGroup* pg = mPackageGroups[0];
5353    const Package* pkg = pg->packages[0];
5354    size_t typeCount = pkg->types.size();
5355    // starting size is header + first item (number of types in map)
5356    *outSize = (IDMAP_HEADER_SIZE + 1) * sizeof(uint32_t);
5357    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5358    const uint32_t pkg_id = pkg->package->id << 24;
5359
5360    for (size_t typeIndex = 0; typeIndex < typeCount; ++typeIndex) {
5361        ssize_t first = -1;
5362        ssize_t last = -1;
5363        const Type* typeConfigs = pkg->getType(typeIndex);
5364        ssize_t mapIndex = map.add();
5365        if (mapIndex < 0) {
5366            return NO_MEMORY;
5367        }
5368        Vector<uint32_t>& vector = map.editItemAt(mapIndex);
5369        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5370            uint32_t resID = pkg_id
5371                | (0x00ff0000 & ((typeIndex+1)<<16))
5372                | (0x0000ffff & (entryIndex));
5373            resource_name resName;
5374            if (!this->getResourceName(resID, true, &resName)) {
5375                ALOGW("idmap: resource 0x%08x has spec but lacks values, skipping\n", resID);
5376                // add dummy value, or trimming leading/trailing zeroes later will fail
5377                vector.push(0);
5378                continue;
5379            }
5380
5381            const String16 overlayType(resName.type, resName.typeLen);
5382            const String16 overlayName(resName.name, resName.nameLen);
5383            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5384                                                              overlayName.size(),
5385                                                              overlayType.string(),
5386                                                              overlayType.size(),
5387                                                              overlayPackage.string(),
5388                                                              overlayPackage.size());
5389            if (overlayResID != 0) {
5390                overlayResID = pkg_id | (0x00ffffff & overlayResID);
5391                last = Res_GETENTRY(resID);
5392                if (first == -1) {
5393                    first = Res_GETENTRY(resID);
5394                }
5395            }
5396            vector.push(overlayResID);
5397#if 0
5398            if (overlayResID != 0) {
5399                ALOGD("%s/%s 0x%08x -> 0x%08x\n",
5400                     String8(String16(resName.type)).string(),
5401                     String8(String16(resName.name)).string(),
5402                     resID, overlayResID);
5403            }
5404#endif
5405        }
5406
5407        if (first != -1) {
5408            // shave off trailing entries which lack overlay values
5409            const size_t last_past_one = last + 1;
5410            if (last_past_one < vector.size()) {
5411                vector.removeItemsAt(last_past_one, vector.size() - last_past_one);
5412            }
5413            // shave off leading entries which lack overlay values
5414            vector.removeItemsAt(0, first);
5415            // store offset to first overlaid resource ID of this type
5416            vector.insertAt((uint32_t)first, 0, 1);
5417            // reserve space for number and offset of entries, and the actual entries
5418            *outSize += (2 + vector.size()) * sizeof(uint32_t);
5419        } else {
5420            // no entries of current type defined in overlay package
5421            vector.clear();
5422            // reserve space for type offset
5423            *outSize += 1 * sizeof(uint32_t);
5424        }
5425    }
5426
5427    if ((*outData = malloc(*outSize)) == NULL) {
5428        return NO_MEMORY;
5429    }
5430    uint32_t* data = (uint32_t*)*outData;
5431    *data++ = htodl(IDMAP_MAGIC);
5432    *data++ = htodl(originalCrc);
5433    *data++ = htodl(overlayCrc);
5434    const size_t mapSize = map.size();
5435    *data++ = htodl(mapSize);
5436    size_t offset = mapSize;
5437    for (size_t i = 0; i < mapSize; ++i) {
5438        const Vector<uint32_t>& vector = map.itemAt(i);
5439        const size_t N = vector.size();
5440        if (N == 0) {
5441            *data++ = htodl(0);
5442        } else {
5443            offset++;
5444            *data++ = htodl(offset);
5445            offset += N;
5446        }
5447    }
5448    for (size_t i = 0; i < mapSize; ++i) {
5449        const Vector<uint32_t>& vector = map.itemAt(i);
5450        const size_t N = vector.size();
5451        if (N == 0) {
5452            continue;
5453        }
5454        if (N == 1) { // vector expected to hold (offset) + (N > 0 entries)
5455            ALOGW("idmap: type %d supposedly has entries, but no entries found\n", i);
5456            return UNKNOWN_ERROR;
5457        }
5458        *data++ = htodl(N - 1); // do not count the offset (which is vector's first element)
5459        for (size_t j = 0; j < N; ++j) {
5460            const uint32_t& overlayResID = vector.itemAt(j);
5461            *data++ = htodl(overlayResID);
5462        }
5463    }
5464
5465    return NO_ERROR;
5466}
5467
5468bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
5469                            uint32_t* pOriginalCrc, uint32_t* pOverlayCrc)
5470{
5471    const uint32_t* map = (const uint32_t*)idmap;
5472    if (!assertIdmapHeader(map, sizeBytes)) {
5473        return false;
5474    }
5475    *pOriginalCrc = map[1];
5476    *pOverlayCrc = map[2];
5477    return true;
5478}
5479
5480
5481#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
5482
5483#define CHAR16_ARRAY_EQ(constant, var, len) \
5484        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
5485
5486static void print_complex(uint32_t complex, bool isFraction)
5487{
5488    const float MANTISSA_MULT =
5489        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
5490    const float RADIX_MULTS[] = {
5491        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
5492        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
5493    };
5494
5495    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
5496                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
5497            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
5498                            & Res_value::COMPLEX_RADIX_MASK];
5499    printf("%f", value);
5500
5501    if (!isFraction) {
5502        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5503            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
5504            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
5505            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
5506            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
5507            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
5508            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
5509            default: printf(" (unknown unit)"); break;
5510        }
5511    } else {
5512        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
5513            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
5514            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
5515            default: printf(" (unknown unit)"); break;
5516        }
5517    }
5518}
5519
5520// Normalize a string for output
5521String8 ResTable::normalizeForOutput( const char *input )
5522{
5523    String8 ret;
5524    char buff[2];
5525    buff[1] = '\0';
5526
5527    while (*input != '\0') {
5528        switch (*input) {
5529            // All interesting characters are in the ASCII zone, so we are making our own lives
5530            // easier by scanning the string one byte at a time.
5531        case '\\':
5532            ret += "\\\\";
5533            break;
5534        case '\n':
5535            ret += "\\n";
5536            break;
5537        case '"':
5538            ret += "\\\"";
5539            break;
5540        default:
5541            buff[0] = *input;
5542            ret += buff;
5543            break;
5544        }
5545
5546        input++;
5547    }
5548
5549    return ret;
5550}
5551
5552void ResTable::print_value(const Package* pkg, const Res_value& value) const
5553{
5554    if (value.dataType == Res_value::TYPE_NULL) {
5555        printf("(null)\n");
5556    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
5557        printf("(reference) 0x%08x\n", value.data);
5558    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
5559        printf("(attribute) 0x%08x\n", value.data);
5560    } else if (value.dataType == Res_value::TYPE_STRING) {
5561        size_t len;
5562        const char* str8 = pkg->header->values.string8At(
5563                value.data, &len);
5564        if (str8 != NULL) {
5565            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
5566        } else {
5567            const char16_t* str16 = pkg->header->values.stringAt(
5568                    value.data, &len);
5569            if (str16 != NULL) {
5570                printf("(string16) \"%s\"\n",
5571                    normalizeForOutput(String8(str16, len).string()).string());
5572            } else {
5573                printf("(string) null\n");
5574            }
5575        }
5576    } else if (value.dataType == Res_value::TYPE_FLOAT) {
5577        printf("(float) %g\n", *(const float*)&value.data);
5578    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
5579        printf("(dimension) ");
5580        print_complex(value.data, false);
5581        printf("\n");
5582    } else if (value.dataType == Res_value::TYPE_FRACTION) {
5583        printf("(fraction) ");
5584        print_complex(value.data, true);
5585        printf("\n");
5586    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
5587            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
5588        printf("(color) #%08x\n", value.data);
5589    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
5590        printf("(boolean) %s\n", value.data ? "true" : "false");
5591    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
5592            || value.dataType <= Res_value::TYPE_LAST_INT) {
5593        printf("(int) 0x%08x or %d\n", value.data, value.data);
5594    } else {
5595        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
5596               (int)value.dataType, (int)value.data,
5597               (int)value.size, (int)value.res0);
5598    }
5599}
5600
5601void ResTable::print(bool inclValues) const
5602{
5603    if (mError != 0) {
5604        printf("mError=0x%x (%s)\n", mError, strerror(mError));
5605    }
5606#if 0
5607    printf("mParams=%c%c-%c%c,\n",
5608            mParams.language[0], mParams.language[1],
5609            mParams.country[0], mParams.country[1]);
5610#endif
5611    size_t pgCount = mPackageGroups.size();
5612    printf("Package Groups (%d)\n", (int)pgCount);
5613    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
5614        const PackageGroup* pg = mPackageGroups[pgIndex];
5615        printf("Package Group %d id=%d packageCount=%d name=%s\n",
5616                (int)pgIndex, pg->id, (int)pg->packages.size(),
5617                String8(pg->name).string());
5618
5619        size_t pkgCount = pg->packages.size();
5620        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
5621            const Package* pkg = pg->packages[pkgIndex];
5622            size_t typeCount = pkg->types.size();
5623            printf("  Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
5624                    pkg->package->id, String8(String16(pkg->package->name)).string(),
5625                    (int)typeCount);
5626            for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
5627                const Type* typeConfigs = pkg->getType(typeIndex);
5628                if (typeConfigs == NULL) {
5629                    printf("    type %d NULL\n", (int)typeIndex);
5630                    continue;
5631                }
5632                const size_t NTC = typeConfigs->configs.size();
5633                printf("    type %d configCount=%d entryCount=%d\n",
5634                       (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
5635                if (typeConfigs->typeSpecFlags != NULL) {
5636                    for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
5637                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5638                                    | (0x00ff0000 & ((typeIndex+1)<<16))
5639                                    | (0x0000ffff & (entryIndex));
5640                        resource_name resName;
5641                        if (this->getResourceName(resID, true, &resName)) {
5642                            String8 type8;
5643                            String8 name8;
5644                            if (resName.type8 != NULL) {
5645                                type8 = String8(resName.type8, resName.typeLen);
5646                            } else {
5647                                type8 = String8(resName.type, resName.typeLen);
5648                            }
5649                            if (resName.name8 != NULL) {
5650                                name8 = String8(resName.name8, resName.nameLen);
5651                            } else {
5652                                name8 = String8(resName.name, resName.nameLen);
5653                            }
5654                            printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
5655                                resID,
5656                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
5657                                type8.string(), name8.string(),
5658                                dtohl(typeConfigs->typeSpecFlags[entryIndex]));
5659                        } else {
5660                            printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
5661                        }
5662                    }
5663                }
5664                for (size_t configIndex=0; configIndex<NTC; configIndex++) {
5665                    const ResTable_type* type = typeConfigs->configs[configIndex];
5666                    if ((((uint64_t)type)&0x3) != 0) {
5667                        printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
5668                        continue;
5669                    }
5670                    String8 configStr = type->config.toString();
5671                    printf("      config %s:\n", configStr.size() > 0
5672                            ? configStr.string() : "(default)");
5673                    size_t entryCount = dtohl(type->entryCount);
5674                    uint32_t entriesStart = dtohl(type->entriesStart);
5675                    if ((entriesStart&0x3) != 0) {
5676                        printf("      NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
5677                        continue;
5678                    }
5679                    uint32_t typeSize = dtohl(type->header.size);
5680                    if ((typeSize&0x3) != 0) {
5681                        printf("      NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
5682                        continue;
5683                    }
5684                    for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
5685
5686                        const uint8_t* const end = ((const uint8_t*)type)
5687                            + dtohl(type->header.size);
5688                        const uint32_t* const eindex = (const uint32_t*)
5689                            (((const uint8_t*)type) + dtohs(type->header.headerSize));
5690
5691                        uint32_t thisOffset = dtohl(eindex[entryIndex]);
5692                        if (thisOffset == ResTable_type::NO_ENTRY) {
5693                            continue;
5694                        }
5695
5696                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
5697                                    | (0x00ff0000 & ((typeIndex+1)<<16))
5698                                    | (0x0000ffff & (entryIndex));
5699                        resource_name resName;
5700                        if (this->getResourceName(resID, true, &resName)) {
5701                            String8 type8;
5702                            String8 name8;
5703                            if (resName.type8 != NULL) {
5704                                type8 = String8(resName.type8, resName.typeLen);
5705                            } else {
5706                                type8 = String8(resName.type, resName.typeLen);
5707                            }
5708                            if (resName.name8 != NULL) {
5709                                name8 = String8(resName.name8, resName.nameLen);
5710                            } else {
5711                                name8 = String8(resName.name, resName.nameLen);
5712                            }
5713                            printf("        resource 0x%08x %s:%s/%s: ", resID,
5714                                    CHAR16_TO_CSTR(resName.package, resName.packageLen),
5715                                    type8.string(), name8.string());
5716                        } else {
5717                            printf("        INVALID RESOURCE 0x%08x: ", resID);
5718                        }
5719                        if ((thisOffset&0x3) != 0) {
5720                            printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
5721                            continue;
5722                        }
5723                        if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
5724                            printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
5725                                   (void*)entriesStart, (void*)thisOffset,
5726                                   (void*)typeSize);
5727                            continue;
5728                        }
5729
5730                        const ResTable_entry* ent = (const ResTable_entry*)
5731                            (((const uint8_t*)type) + entriesStart + thisOffset);
5732                        if (((entriesStart + thisOffset)&0x3) != 0) {
5733                            printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
5734                                 (void*)(entriesStart + thisOffset));
5735                            continue;
5736                        }
5737
5738                        uint16_t esize = dtohs(ent->size);
5739                        if ((esize&0x3) != 0) {
5740                            printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
5741                            continue;
5742                        }
5743                        if ((thisOffset+esize) > typeSize) {
5744                            printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
5745                                   (void*)entriesStart, (void*)thisOffset,
5746                                   (void*)esize, (void*)typeSize);
5747                            continue;
5748                        }
5749
5750                        const Res_value* valuePtr = NULL;
5751                        const ResTable_map_entry* bagPtr = NULL;
5752                        Res_value value;
5753                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
5754                            printf("<bag>");
5755                            bagPtr = (const ResTable_map_entry*)ent;
5756                        } else {
5757                            valuePtr = (const Res_value*)
5758                                (((const uint8_t*)ent) + esize);
5759                            value.copyFrom_dtoh(*valuePtr);
5760                            printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
5761                                   (int)value.dataType, (int)value.data,
5762                                   (int)value.size, (int)value.res0);
5763                        }
5764
5765                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
5766                            printf(" (PUBLIC)");
5767                        }
5768                        printf("\n");
5769
5770                        if (inclValues) {
5771                            if (valuePtr != NULL) {
5772                                printf("          ");
5773                                print_value(pkg, value);
5774                            } else if (bagPtr != NULL) {
5775                                const int N = dtohl(bagPtr->count);
5776                                const uint8_t* baseMapPtr = (const uint8_t*)ent;
5777                                size_t mapOffset = esize;
5778                                const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5779                                printf("          Parent=0x%08x, Count=%d\n",
5780                                    dtohl(bagPtr->parent.ident), N);
5781                                for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
5782                                    printf("          #%i (Key=0x%08x): ",
5783                                        i, dtohl(mapPtr->name.ident));
5784                                    value.copyFrom_dtoh(mapPtr->value);
5785                                    print_value(pkg, value);
5786                                    const size_t size = dtohs(mapPtr->value.size);
5787                                    mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
5788                                    mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
5789                                }
5790                            }
5791                        }
5792                    }
5793                }
5794            }
5795        }
5796    }
5797}
5798
5799}   // namespace android
5800