ResourceTypes.cpp revision 89147ed84b140d83e144ad9eaa568cc9c6fb514c 
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/ByteBucketArray.h>
21#include <androidfw/ResourceTypes.h>
22#include <androidfw/TypeWrappers.h>
23#include <utils/Atomic.h>
24#include <utils/ByteOrder.h>
25#include <utils/Debug.h>
26#include <utils/Log.h>
27#include <utils/String16.h>
28#include <utils/String8.h>
29
30#include <stdlib.h>
31#include <string.h>
32#include <memory.h>
33#include <ctype.h>
34#include <stdint.h>
35#include <stddef.h>
36
37#ifndef INT32_MAX
38#define INT32_MAX ((int32_t)(2147483647))
39#endif
40
41#define STRING_POOL_NOISY(x) //x
42#define XML_NOISY(x) //x
43#define TABLE_NOISY(x) //x
44#define TABLE_GETENTRY(x) //x
45#define TABLE_SUPER_NOISY(x) //x
46#define LOAD_TABLE_NOISY(x) //x
47#define TABLE_THEME(x) //x
48#define LIB_NOISY(x) //x
49
50namespace android {
51
52#ifdef HAVE_WINSOCK
53#undef  nhtol
54#undef  htonl
55
56#ifdef HAVE_LITTLE_ENDIAN
57#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
58#define htonl(x)    ntohl(x)
59#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
60#define htons(x)    ntohs(x)
61#else
62#define ntohl(x)    (x)
63#define htonl(x)    (x)
64#define ntohs(x)    (x)
65#define htons(x)    (x)
66#endif
67#endif
68
69#define IDMAP_MAGIC             0x504D4449
70#define IDMAP_CURRENT_VERSION   0x00000001
71
72#define APP_PACKAGE_ID      0x7f
73#define SYS_PACKAGE_ID      0x01
74
75// Standard C isspace() is only required to look at the low byte of its input, so
76// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
77// any high-byte UTF-16 code point is not whitespace.
78inline int isspace16(char16_t c) {
79    return (c < 0x0080 && isspace(c));
80}
81
82template<typename T>
83inline static T max(T a, T b) {
84    return a > b ? a : b;
85}
86
87// range checked; guaranteed to NUL-terminate within the stated number of available slots
88// NOTE: if this truncates the dst string due to running out of space, no attempt is
89// made to avoid splitting surrogate pairs.
90static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
91{
92    uint16_t* last = dst + avail - 1;
93    while (*src && (dst < last)) {
94        char16_t s = dtohs(*src);
95        *dst++ = s;
96        src++;
97    }
98    *dst = 0;
99}
100
101static status_t validate_chunk(const ResChunk_header* chunk,
102                               size_t minSize,
103                               const uint8_t* dataEnd,
104                               const char* name)
105{
106    const uint16_t headerSize = dtohs(chunk->headerSize);
107    const uint32_t size = dtohl(chunk->size);
108
109    if (headerSize >= minSize) {
110        if (headerSize <= size) {
111            if (((headerSize|size)&0x3) == 0) {
112                if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) {
113                    return NO_ERROR;
114                }
115                ALOGW("%s data size 0x%x extends beyond resource end %p.",
116                     name, size, (void*)(dataEnd-((const uint8_t*)chunk)));
117                return BAD_TYPE;
118            }
119            ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
120                 name, (int)size, (int)headerSize);
121            return BAD_TYPE;
122        }
123        ALOGW("%s size 0x%x is smaller than header size 0x%x.",
124             name, size, headerSize);
125        return BAD_TYPE;
126    }
127    ALOGW("%s header size 0x%04x is too small.",
128         name, headerSize);
129    return BAD_TYPE;
130}
131
132static void fill9patchOffsets(Res_png_9patch* patch) {
133    patch->xDivsOffset = sizeof(Res_png_9patch);
134    patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t));
135    patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t));
136}
137
138inline void Res_value::copyFrom_dtoh(const Res_value& src)
139{
140    size = dtohs(src.size);
141    res0 = src.res0;
142    dataType = src.dataType;
143    data = dtohl(src.data);
144}
145
146void Res_png_9patch::deviceToFile()
147{
148    int32_t* xDivs = getXDivs();
149    for (int i = 0; i < numXDivs; i++) {
150        xDivs[i] = htonl(xDivs[i]);
151    }
152    int32_t* yDivs = getYDivs();
153    for (int i = 0; i < numYDivs; i++) {
154        yDivs[i] = htonl(yDivs[i]);
155    }
156    paddingLeft = htonl(paddingLeft);
157    paddingRight = htonl(paddingRight);
158    paddingTop = htonl(paddingTop);
159    paddingBottom = htonl(paddingBottom);
160    uint32_t* colors = getColors();
161    for (int i=0; i<numColors; i++) {
162        colors[i] = htonl(colors[i]);
163    }
164}
165
166void Res_png_9patch::fileToDevice()
167{
168    int32_t* xDivs = getXDivs();
169    for (int i = 0; i < numXDivs; i++) {
170        xDivs[i] = ntohl(xDivs[i]);
171    }
172    int32_t* yDivs = getYDivs();
173    for (int i = 0; i < numYDivs; i++) {
174        yDivs[i] = ntohl(yDivs[i]);
175    }
176    paddingLeft = ntohl(paddingLeft);
177    paddingRight = ntohl(paddingRight);
178    paddingTop = ntohl(paddingTop);
179    paddingBottom = ntohl(paddingBottom);
180    uint32_t* colors = getColors();
181    for (int i=0; i<numColors; i++) {
182        colors[i] = ntohl(colors[i]);
183    }
184}
185
186size_t Res_png_9patch::serializedSize() const
187{
188    // The size of this struct is 32 bytes on the 32-bit target system
189    // 4 * int8_t
190    // 4 * int32_t
191    // 3 * uint32_t
192    return 32
193            + numXDivs * sizeof(int32_t)
194            + numYDivs * sizeof(int32_t)
195            + numColors * sizeof(uint32_t);
196}
197
198void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
199                                const int32_t* yDivs, const uint32_t* colors)
200{
201    // Use calloc since we're going to leave a few holes in the data
202    // and want this to run cleanly under valgrind
203    void* newData = calloc(1, patch.serializedSize());
204    serialize(patch, xDivs, yDivs, colors, newData);
205    return newData;
206}
207
208void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
209                               const int32_t* yDivs, const uint32_t* colors, void* outData)
210{
211    uint8_t* data = (uint8_t*) outData;
212    memcpy(data, &patch.wasDeserialized, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
213    memcpy(data + 12, &patch.paddingLeft, 16);   // copy paddingXXXX
214    data += 32;
215
216    memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t));
217    data +=  patch.numXDivs * sizeof(int32_t);
218    memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t));
219    data +=  patch.numYDivs * sizeof(int32_t);
220    memcpy(data, colors, patch.numColors * sizeof(uint32_t));
221
222    fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData));
223}
224
225static bool assertIdmapHeader(const void* idmap, size_t size) {
226    if (reinterpret_cast<uintptr_t>(idmap) & 0x03) {
227        ALOGE("idmap: header is not word aligned");
228        return false;
229    }
230
231    if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) {
232        ALOGW("idmap: header too small (%d bytes)", (uint32_t) size);
233        return false;
234    }
235
236    const uint32_t magic = htodl(*reinterpret_cast<const uint32_t*>(idmap));
237    if (magic != IDMAP_MAGIC) {
238        ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)",
239             magic, IDMAP_MAGIC);
240        return false;
241    }
242
243    const uint32_t version = htodl(*(reinterpret_cast<const uint32_t*>(idmap) + 1));
244    if (version != IDMAP_CURRENT_VERSION) {
245        // We are strict about versions because files with this format are
246        // auto-generated and don't need backwards compatibility.
247        ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)",
248                version, IDMAP_CURRENT_VERSION);
249        return false;
250    }
251    return true;
252}
253
254class IdmapEntries {
255public:
256    IdmapEntries() : mData(NULL) {}
257
258    bool hasEntries() const {
259        if (mData == NULL) {
260            return false;
261        }
262
263        return (dtohs(*mData) > 0);
264    }
265
266    size_t byteSize() const {
267        if (mData == NULL) {
268            return 0;
269        }
270        uint16_t entryCount = dtohs(mData[2]);
271        return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount));
272    }
273
274    uint8_t targetTypeId() const {
275        if (mData == NULL) {
276            return 0;
277        }
278        return dtohs(mData[0]);
279    }
280
281    uint8_t overlayTypeId() const {
282        if (mData == NULL) {
283            return 0;
284        }
285        return dtohs(mData[1]);
286    }
287
288    status_t setTo(const void* entryHeader, size_t size) {
289        if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) {
290            ALOGE("idmap: entry header is not word aligned");
291            return UNKNOWN_ERROR;
292        }
293
294        if (size < sizeof(uint16_t) * 4) {
295            ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size);
296            return UNKNOWN_ERROR;
297        }
298
299        const uint16_t* header = reinterpret_cast<const uint16_t*>(entryHeader);
300        const uint16_t targetTypeId = dtohs(header[0]);
301        const uint16_t overlayTypeId = dtohs(header[1]);
302        if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 || overlayTypeId > 255) {
303            ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId);
304            return UNKNOWN_ERROR;
305        }
306
307        uint16_t entryCount = dtohs(header[2]);
308        if (size < sizeof(uint32_t) * (entryCount + 2)) {
309            ALOGE("idmap: too small (%u bytes) for the number of entries (%u)",
310                    (uint32_t) size, (uint32_t) entryCount);
311            return UNKNOWN_ERROR;
312        }
313        mData = header;
314        return NO_ERROR;
315    }
316
317    status_t lookup(uint16_t entryId, uint16_t* outEntryId) const {
318        uint16_t entryCount = dtohs(mData[2]);
319        uint16_t offset = dtohs(mData[3]);
320
321        if (entryId < offset) {
322            // The entry is not present in this idmap
323            return BAD_INDEX;
324        }
325
326        entryId -= offset;
327
328        if (entryId >= entryCount) {
329            // The entry is not present in this idmap
330            return BAD_INDEX;
331        }
332
333        // It is safe to access the type here without checking the size because
334        // we have checked this when it was first loaded.
335        const uint32_t* entries = reinterpret_cast<const uint32_t*>(mData) + 2;
336        uint32_t mappedEntry = dtohl(entries[entryId]);
337        if (mappedEntry == 0xffffffff) {
338            // This entry is not present in this idmap
339            return BAD_INDEX;
340        }
341        *outEntryId = static_cast<uint16_t>(mappedEntry);
342        return NO_ERROR;
343    }
344
345private:
346    const uint16_t* mData;
347};
348
349status_t parseIdmap(const void* idmap, size_t size, uint8_t* outPackageId, KeyedVector<uint8_t, IdmapEntries>* outMap) {
350    if (!assertIdmapHeader(idmap, size)) {
351        return UNKNOWN_ERROR;
352    }
353
354    size -= ResTable::IDMAP_HEADER_SIZE_BYTES;
355    if (size < sizeof(uint16_t) * 2) {
356        ALOGE("idmap: too small to contain any mapping");
357        return UNKNOWN_ERROR;
358    }
359
360    const uint16_t* data = reinterpret_cast<const uint16_t*>(
361            reinterpret_cast<const uint8_t*>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES);
362
363    uint16_t targetPackageId = dtohs(*(data++));
364    if (targetPackageId == 0 || targetPackageId > 255) {
365        ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId);
366        return UNKNOWN_ERROR;
367    }
368
369    uint16_t mapCount = dtohs(*(data++));
370    if (mapCount == 0) {
371        ALOGE("idmap: no mappings");
372        return UNKNOWN_ERROR;
373    }
374
375    if (mapCount > 255) {
376        ALOGW("idmap: too many mappings. Only 255 are possible but %u are present", (uint32_t) mapCount);
377    }
378
379    while (size > sizeof(uint16_t) * 4) {
380        IdmapEntries entries;
381        status_t err = entries.setTo(data, size);
382        if (err != NO_ERROR) {
383            return err;
384        }
385
386        ssize_t index = outMap->add(entries.overlayTypeId(), entries);
387        if (index < 0) {
388            return NO_MEMORY;
389        }
390
391        data += entries.byteSize() / sizeof(uint16_t);
392        size -= entries.byteSize();
393    }
394
395    if (outPackageId != NULL) {
396        *outPackageId = static_cast<uint8_t>(targetPackageId);
397    }
398    return NO_ERROR;
399}
400
401Res_png_9patch* Res_png_9patch::deserialize(void* inData)
402{
403
404    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData);
405    patch->wasDeserialized = true;
406    fill9patchOffsets(patch);
407
408    return patch;
409}
410
411// --------------------------------------------------------------------
412// --------------------------------------------------------------------
413// --------------------------------------------------------------------
414
415ResStringPool::ResStringPool()
416    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
417{
418}
419
420ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
421    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
422{
423    setTo(data, size, copyData);
424}
425
426ResStringPool::~ResStringPool()
427{
428    uninit();
429}
430
431void ResStringPool::setToEmpty()
432{
433    uninit();
434
435    mOwnedData = calloc(1, sizeof(ResStringPool_header));
436    ResStringPool_header* header = (ResStringPool_header*) mOwnedData;
437    mSize = 0;
438    mEntries = NULL;
439    mStrings = NULL;
440    mStringPoolSize = 0;
441    mEntryStyles = NULL;
442    mStyles = NULL;
443    mStylePoolSize = 0;
444    mHeader = (const ResStringPool_header*) header;
445}
446
447status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
448{
449    if (!data || !size) {
450        return (mError=BAD_TYPE);
451    }
452
453    uninit();
454
455    const bool notDeviceEndian = htods(0xf0) != 0xf0;
456
457    if (copyData || notDeviceEndian) {
458        mOwnedData = malloc(size);
459        if (mOwnedData == NULL) {
460            return (mError=NO_MEMORY);
461        }
462        memcpy(mOwnedData, data, size);
463        data = mOwnedData;
464    }
465
466    mHeader = (const ResStringPool_header*)data;
467
468    if (notDeviceEndian) {
469        ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
470        h->header.headerSize = dtohs(mHeader->header.headerSize);
471        h->header.type = dtohs(mHeader->header.type);
472        h->header.size = dtohl(mHeader->header.size);
473        h->stringCount = dtohl(mHeader->stringCount);
474        h->styleCount = dtohl(mHeader->styleCount);
475        h->flags = dtohl(mHeader->flags);
476        h->stringsStart = dtohl(mHeader->stringsStart);
477        h->stylesStart = dtohl(mHeader->stylesStart);
478    }
479
480    if (mHeader->header.headerSize > mHeader->header.size
481            || mHeader->header.size > size) {
482        ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
483                (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
484        return (mError=BAD_TYPE);
485    }
486    mSize = mHeader->header.size;
487    mEntries = (const uint32_t*)
488        (((const uint8_t*)data)+mHeader->header.headerSize);
489
490    if (mHeader->stringCount > 0) {
491        if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount)  // uint32 overflow?
492            || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
493                > size) {
494            ALOGW("Bad string block: entry of %d items extends past data size %d\n",
495                    (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
496                    (int)size);
497            return (mError=BAD_TYPE);
498        }
499
500        size_t charSize;
501        if (mHeader->flags&ResStringPool_header::UTF8_FLAG) {
502            charSize = sizeof(uint8_t);
503        } else {
504            charSize = sizeof(char16_t);
505        }
506
507        // There should be at least space for the smallest string
508        // (2 bytes length, null terminator).
509        if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) {
510            ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
511                    (int)mHeader->stringsStart, (int)mHeader->header.size);
512            return (mError=BAD_TYPE);
513        }
514
515        mStrings = (const void*)
516            (((const uint8_t*)data) + mHeader->stringsStart);
517
518        if (mHeader->styleCount == 0) {
519            mStringPoolSize = (mSize - mHeader->stringsStart) / charSize;
520        } else {
521            // check invariant: styles starts before end of data
522            if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) {
523                ALOGW("Bad style block: style block starts at %d past data size of %d\n",
524                    (int)mHeader->stylesStart, (int)mHeader->header.size);
525                return (mError=BAD_TYPE);
526            }
527            // check invariant: styles follow the strings
528            if (mHeader->stylesStart <= mHeader->stringsStart) {
529                ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
530                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
531                return (mError=BAD_TYPE);
532            }
533            mStringPoolSize =
534                (mHeader->stylesStart-mHeader->stringsStart)/charSize;
535        }
536
537        // check invariant: stringCount > 0 requires a string pool to exist
538        if (mStringPoolSize == 0) {
539            ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
540            return (mError=BAD_TYPE);
541        }
542
543        if (notDeviceEndian) {
544            size_t i;
545            uint32_t* e = const_cast<uint32_t*>(mEntries);
546            for (i=0; i<mHeader->stringCount; i++) {
547                e[i] = dtohl(mEntries[i]);
548            }
549            if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
550                const char16_t* strings = (const char16_t*)mStrings;
551                char16_t* s = const_cast<char16_t*>(strings);
552                for (i=0; i<mStringPoolSize; i++) {
553                    s[i] = dtohs(strings[i]);
554                }
555            }
556        }
557
558        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
559                ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
560                (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
561                ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
562            ALOGW("Bad string block: last string is not 0-terminated\n");
563            return (mError=BAD_TYPE);
564        }
565    } else {
566        mStrings = NULL;
567        mStringPoolSize = 0;
568    }
569
570    if (mHeader->styleCount > 0) {
571        mEntryStyles = mEntries + mHeader->stringCount;
572        // invariant: integer overflow in calculating mEntryStyles
573        if (mEntryStyles < mEntries) {
574            ALOGW("Bad string block: integer overflow finding styles\n");
575            return (mError=BAD_TYPE);
576        }
577
578        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
579            ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
580                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
581                    (int)size);
582            return (mError=BAD_TYPE);
583        }
584        mStyles = (const uint32_t*)
585            (((const uint8_t*)data)+mHeader->stylesStart);
586        if (mHeader->stylesStart >= mHeader->header.size) {
587            ALOGW("Bad string block: style pool starts %d, after total size %d\n",
588                    (int)mHeader->stylesStart, (int)mHeader->header.size);
589            return (mError=BAD_TYPE);
590        }
591        mStylePoolSize =
592            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
593
594        if (notDeviceEndian) {
595            size_t i;
596            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
597            for (i=0; i<mHeader->styleCount; i++) {
598                e[i] = dtohl(mEntryStyles[i]);
599            }
600            uint32_t* s = const_cast<uint32_t*>(mStyles);
601            for (i=0; i<mStylePoolSize; i++) {
602                s[i] = dtohl(mStyles[i]);
603            }
604        }
605
606        const ResStringPool_span endSpan = {
607            { htodl(ResStringPool_span::END) },
608            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
609        };
610        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
611                   &endSpan, sizeof(endSpan)) != 0) {
612            ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
613            return (mError=BAD_TYPE);
614        }
615    } else {
616        mEntryStyles = NULL;
617        mStyles = NULL;
618        mStylePoolSize = 0;
619    }
620
621    return (mError=NO_ERROR);
622}
623
624status_t ResStringPool::getError() const
625{
626    return mError;
627}
628
629void ResStringPool::uninit()
630{
631    mError = NO_INIT;
632    if (mHeader != NULL && mCache != NULL) {
633        for (size_t x = 0; x < mHeader->stringCount; x++) {
634            if (mCache[x] != NULL) {
635                free(mCache[x]);
636                mCache[x] = NULL;
637            }
638        }
639        free(mCache);
640        mCache = NULL;
641    }
642    if (mOwnedData) {
643        free(mOwnedData);
644        mOwnedData = NULL;
645    }
646}
647
648/**
649 * Strings in UTF-16 format have length indicated by a length encoded in the
650 * stored data. It is either 1 or 2 characters of length data. This allows a
651 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
652 * much data in a string, you're abusing them.
653 *
654 * If the high bit is set, then there are two characters or 4 bytes of length
655 * data encoded. In that case, drop the high bit of the first character and
656 * add it together with the next character.
657 */
658static inline size_t
659decodeLength(const char16_t** str)
660{
661    size_t len = **str;
662    if ((len & 0x8000) != 0) {
663        (*str)++;
664        len = ((len & 0x7FFF) << 16) | **str;
665    }
666    (*str)++;
667    return len;
668}
669
670/**
671 * Strings in UTF-8 format have length indicated by a length encoded in the
672 * stored data. It is either 1 or 2 characters of length data. This allows a
673 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
674 * text in another way if you're using that much data in a single string.
675 *
676 * If the high bit is set, then there are two characters or 2 bytes of length
677 * data encoded. In that case, drop the high bit of the first character and
678 * add it together with the next character.
679 */
680static inline size_t
681decodeLength(const uint8_t** str)
682{
683    size_t len = **str;
684    if ((len & 0x80) != 0) {
685        (*str)++;
686        len = ((len & 0x7F) << 8) | **str;
687    }
688    (*str)++;
689    return len;
690}
691
692const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
693{
694    if (mError == NO_ERROR && idx < mHeader->stringCount) {
695        const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
696        const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
697        if (off < (mStringPoolSize-1)) {
698            if (!isUTF8) {
699                const char16_t* strings = (char16_t*)mStrings;
700                const char16_t* str = strings+off;
701
702                *u16len = decodeLength(&str);
703                if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
704                    return str;
705                } else {
706                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
707                            (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
708                }
709            } else {
710                const uint8_t* strings = (uint8_t*)mStrings;
711                const uint8_t* u8str = strings+off;
712
713                *u16len = decodeLength(&u8str);
714                size_t u8len = decodeLength(&u8str);
715
716                // encLen must be less than 0x7FFF due to encoding.
717                if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
718                    AutoMutex lock(mDecodeLock);
719
720                    if (mCache == NULL) {
721#ifndef HAVE_ANDROID_OS
722                        STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
723                                mHeader->stringCount*sizeof(char16_t**)));
724#else
725                        // We do not want to be in this case when actually running Android.
726                        ALOGW("CREATING STRING CACHE OF %d bytes",
727                                mHeader->stringCount*sizeof(char16_t**));
728#endif
729                        mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
730                        if (mCache == NULL) {
731                            ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
732                                    (int)(mHeader->stringCount*sizeof(char16_t**)));
733                            return NULL;
734                        }
735                    }
736
737                    if (mCache[idx] != NULL) {
738                        return mCache[idx];
739                    }
740
741                    ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
742                    if (actualLen < 0 || (size_t)actualLen != *u16len) {
743                        ALOGW("Bad string block: string #%lld decoded length is not correct "
744                                "%lld vs %llu\n",
745                                (long long)idx, (long long)actualLen, (long long)*u16len);
746                        return NULL;
747                    }
748
749                    char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
750                    if (!u16str) {
751                        ALOGW("No memory when trying to allocate decode cache for string #%d\n",
752                                (int)idx);
753                        return NULL;
754                    }
755
756                    STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
757                    utf8_to_utf16(u8str, u8len, u16str);
758                    mCache[idx] = u16str;
759                    return u16str;
760                } else {
761                    ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
762                            (long long)idx, (long long)(u8str+u8len-strings),
763                            (long long)mStringPoolSize);
764                }
765            }
766        } else {
767            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
768                    (int)idx, (int)(off*sizeof(uint16_t)),
769                    (int)(mStringPoolSize*sizeof(uint16_t)));
770        }
771    }
772    return NULL;
773}
774
775const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
776{
777    if (mError == NO_ERROR && idx < mHeader->stringCount) {
778        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
779            return NULL;
780        }
781        const uint32_t off = mEntries[idx]/sizeof(char);
782        if (off < (mStringPoolSize-1)) {
783            const uint8_t* strings = (uint8_t*)mStrings;
784            const uint8_t* str = strings+off;
785            *outLen = decodeLength(&str);
786            size_t encLen = decodeLength(&str);
787            if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
788                return (const char*)str;
789            } else {
790                ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
791                        (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
792            }
793        } else {
794            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
795                    (int)idx, (int)(off*sizeof(uint16_t)),
796                    (int)(mStringPoolSize*sizeof(uint16_t)));
797        }
798    }
799    return NULL;
800}
801
802const String8 ResStringPool::string8ObjectAt(size_t idx) const
803{
804    size_t len;
805    const char *str = string8At(idx, &len);
806    if (str != NULL) {
807        return String8(str, len);
808    }
809
810    const char16_t *str16 = stringAt(idx, &len);
811    if (str16 != NULL) {
812        return String8(str16, len);
813    }
814    return String8();
815}
816
817const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
818{
819    return styleAt(ref.index);
820}
821
822const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
823{
824    if (mError == NO_ERROR && idx < mHeader->styleCount) {
825        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
826        if (off < mStylePoolSize) {
827            return (const ResStringPool_span*)(mStyles+off);
828        } else {
829            ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
830                    (int)idx, (int)(off*sizeof(uint32_t)),
831                    (int)(mStylePoolSize*sizeof(uint32_t)));
832        }
833    }
834    return NULL;
835}
836
837ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
838{
839    if (mError != NO_ERROR) {
840        return mError;
841    }
842
843    size_t len;
844
845    if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
846        STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
847
848        // The string pool contains UTF 8 strings; we don't want to cause
849        // temporary UTF-16 strings to be created as we search.
850        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
851            // Do a binary search for the string...  this is a little tricky,
852            // because the strings are sorted with strzcmp16().  So to match
853            // the ordering, we need to convert strings in the pool to UTF-16.
854            // But we don't want to hit the cache, so instead we will have a
855            // local temporary allocation for the conversions.
856            char16_t* convBuffer = (char16_t*)malloc(strLen+4);
857            ssize_t l = 0;
858            ssize_t h = mHeader->stringCount-1;
859
860            ssize_t mid;
861            while (l <= h) {
862                mid = l + (h - l)/2;
863                const uint8_t* s = (const uint8_t*)string8At(mid, &len);
864                int c;
865                if (s != NULL) {
866                    char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
867                    *end = 0;
868                    c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
869                } else {
870                    c = -1;
871                }
872                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
873                             (const char*)s, c, (int)l, (int)mid, (int)h));
874                if (c == 0) {
875                    STRING_POOL_NOISY(ALOGI("MATCH!"));
876                    free(convBuffer);
877                    return mid;
878                } else if (c < 0) {
879                    l = mid + 1;
880                } else {
881                    h = mid - 1;
882                }
883            }
884            free(convBuffer);
885        } else {
886            // It is unusual to get the ID from an unsorted string block...
887            // most often this happens because we want to get IDs for style
888            // span tags; since those always appear at the end of the string
889            // block, start searching at the back.
890            String8 str8(str, strLen);
891            const size_t str8Len = str8.size();
892            for (int i=mHeader->stringCount-1; i>=0; i--) {
893                const char* s = string8At(i, &len);
894                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
895                             String8(s).string(),
896                             i));
897                if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
898                    STRING_POOL_NOISY(ALOGI("MATCH!"));
899                    return i;
900                }
901            }
902        }
903
904    } else {
905        STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
906
907        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
908            // Do a binary search for the string...
909            ssize_t l = 0;
910            ssize_t h = mHeader->stringCount-1;
911
912            ssize_t mid;
913            while (l <= h) {
914                mid = l + (h - l)/2;
915                const char16_t* s = stringAt(mid, &len);
916                int c = s ? strzcmp16(s, len, str, strLen) : -1;
917                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
918                             String8(s).string(),
919                             c, (int)l, (int)mid, (int)h));
920                if (c == 0) {
921                    STRING_POOL_NOISY(ALOGI("MATCH!"));
922                    return mid;
923                } else if (c < 0) {
924                    l = mid + 1;
925                } else {
926                    h = mid - 1;
927                }
928            }
929        } else {
930            // It is unusual to get the ID from an unsorted string block...
931            // most often this happens because we want to get IDs for style
932            // span tags; since those always appear at the end of the string
933            // block, start searching at the back.
934            for (int i=mHeader->stringCount-1; i>=0; i--) {
935                const char16_t* s = stringAt(i, &len);
936                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
937                             String8(s).string(),
938                             i));
939                if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
940                    STRING_POOL_NOISY(ALOGI("MATCH!"));
941                    return i;
942                }
943            }
944        }
945    }
946
947    return NAME_NOT_FOUND;
948}
949
950size_t ResStringPool::size() const
951{
952    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
953}
954
955size_t ResStringPool::styleCount() const
956{
957    return (mError == NO_ERROR) ? mHeader->styleCount : 0;
958}
959
960size_t ResStringPool::bytes() const
961{
962    return (mError == NO_ERROR) ? mHeader->header.size : 0;
963}
964
965bool ResStringPool::isSorted() const
966{
967    return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
968}
969
970bool ResStringPool::isUTF8() const
971{
972    return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
973}
974
975// --------------------------------------------------------------------
976// --------------------------------------------------------------------
977// --------------------------------------------------------------------
978
979ResXMLParser::ResXMLParser(const ResXMLTree& tree)
980    : mTree(tree), mEventCode(BAD_DOCUMENT)
981{
982}
983
984void ResXMLParser::restart()
985{
986    mCurNode = NULL;
987    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
988}
989const ResStringPool& ResXMLParser::getStrings() const
990{
991    return mTree.mStrings;
992}
993
994ResXMLParser::event_code_t ResXMLParser::getEventType() const
995{
996    return mEventCode;
997}
998
999ResXMLParser::event_code_t ResXMLParser::next()
1000{
1001    if (mEventCode == START_DOCUMENT) {
1002        mCurNode = mTree.mRootNode;
1003        mCurExt = mTree.mRootExt;
1004        return (mEventCode=mTree.mRootCode);
1005    } else if (mEventCode >= FIRST_CHUNK_CODE) {
1006        return nextNode();
1007    }
1008    return mEventCode;
1009}
1010
1011int32_t ResXMLParser::getCommentID() const
1012{
1013    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
1014}
1015
1016const uint16_t* ResXMLParser::getComment(size_t* outLen) const
1017{
1018    int32_t id = getCommentID();
1019    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1020}
1021
1022uint32_t ResXMLParser::getLineNumber() const
1023{
1024    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
1025}
1026
1027int32_t ResXMLParser::getTextID() const
1028{
1029    if (mEventCode == TEXT) {
1030        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
1031    }
1032    return -1;
1033}
1034
1035const uint16_t* ResXMLParser::getText(size_t* outLen) const
1036{
1037    int32_t id = getTextID();
1038    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1039}
1040
1041ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
1042{
1043    if (mEventCode == TEXT) {
1044        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
1045        return sizeof(Res_value);
1046    }
1047    return BAD_TYPE;
1048}
1049
1050int32_t ResXMLParser::getNamespacePrefixID() const
1051{
1052    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1053        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
1054    }
1055    return -1;
1056}
1057
1058const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
1059{
1060    int32_t id = getNamespacePrefixID();
1061    //printf("prefix=%d  event=%p\n", id, mEventCode);
1062    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1063}
1064
1065int32_t ResXMLParser::getNamespaceUriID() const
1066{
1067    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1068        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
1069    }
1070    return -1;
1071}
1072
1073const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
1074{
1075    int32_t id = getNamespaceUriID();
1076    //printf("uri=%d  event=%p\n", id, mEventCode);
1077    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1078}
1079
1080int32_t ResXMLParser::getElementNamespaceID() const
1081{
1082    if (mEventCode == START_TAG) {
1083        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
1084    }
1085    if (mEventCode == END_TAG) {
1086        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
1087    }
1088    return -1;
1089}
1090
1091const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
1092{
1093    int32_t id = getElementNamespaceID();
1094    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1095}
1096
1097int32_t ResXMLParser::getElementNameID() const
1098{
1099    if (mEventCode == START_TAG) {
1100        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
1101    }
1102    if (mEventCode == END_TAG) {
1103        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
1104    }
1105    return -1;
1106}
1107
1108const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
1109{
1110    int32_t id = getElementNameID();
1111    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1112}
1113
1114size_t ResXMLParser::getAttributeCount() const
1115{
1116    if (mEventCode == START_TAG) {
1117        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
1118    }
1119    return 0;
1120}
1121
1122int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
1123{
1124    if (mEventCode == START_TAG) {
1125        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1126        if (idx < dtohs(tag->attributeCount)) {
1127            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1128                (((const uint8_t*)tag)
1129                 + dtohs(tag->attributeStart)
1130                 + (dtohs(tag->attributeSize)*idx));
1131            return dtohl(attr->ns.index);
1132        }
1133    }
1134    return -2;
1135}
1136
1137const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1138{
1139    int32_t id = getAttributeNamespaceID(idx);
1140    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1141    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1142    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1143}
1144
1145const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const
1146{
1147    int32_t id = getAttributeNamespaceID(idx);
1148    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1149    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1150    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1151}
1152
1153int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1154{
1155    if (mEventCode == START_TAG) {
1156        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1157        if (idx < dtohs(tag->attributeCount)) {
1158            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1159                (((const uint8_t*)tag)
1160                 + dtohs(tag->attributeStart)
1161                 + (dtohs(tag->attributeSize)*idx));
1162            return dtohl(attr->name.index);
1163        }
1164    }
1165    return -1;
1166}
1167
1168const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1169{
1170    int32_t id = getAttributeNameID(idx);
1171    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1172    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1173    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1174}
1175
1176const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const
1177{
1178    int32_t id = getAttributeNameID(idx);
1179    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1180    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1181    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1182}
1183
1184uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1185{
1186    int32_t id = getAttributeNameID(idx);
1187    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1188        return dtohl(mTree.mResIds[id]);
1189    }
1190    return 0;
1191}
1192
1193int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
1194{
1195    if (mEventCode == START_TAG) {
1196        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1197        if (idx < dtohs(tag->attributeCount)) {
1198            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1199                (((const uint8_t*)tag)
1200                 + dtohs(tag->attributeStart)
1201                 + (dtohs(tag->attributeSize)*idx));
1202            return dtohl(attr->rawValue.index);
1203        }
1204    }
1205    return -1;
1206}
1207
1208const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1209{
1210    int32_t id = getAttributeValueStringID(idx);
1211    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1212    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1213}
1214
1215int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1216{
1217    if (mEventCode == START_TAG) {
1218        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1219        if (idx < dtohs(tag->attributeCount)) {
1220            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1221                (((const uint8_t*)tag)
1222                 + dtohs(tag->attributeStart)
1223                 + (dtohs(tag->attributeSize)*idx));
1224            uint8_t type = attr->typedValue.dataType;
1225            if (type != Res_value::TYPE_DYNAMIC_REFERENCE) {
1226                return type;
1227            }
1228
1229            // This is a dynamic reference. We adjust those references
1230            // to regular references at this level, so lie to the caller.
1231            return Res_value::TYPE_REFERENCE;
1232        }
1233    }
1234    return Res_value::TYPE_NULL;
1235}
1236
1237int32_t ResXMLParser::getAttributeData(size_t idx) const
1238{
1239    if (mEventCode == START_TAG) {
1240        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1241        if (idx < dtohs(tag->attributeCount)) {
1242            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1243                (((const uint8_t*)tag)
1244                 + dtohs(tag->attributeStart)
1245                 + (dtohs(tag->attributeSize)*idx));
1246            if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE ||
1247                    mTree.mDynamicRefTable == NULL) {
1248                return dtohl(attr->typedValue.data);
1249            }
1250
1251            uint32_t data = dtohl(attr->typedValue.data);
1252            if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) {
1253                return data;
1254            }
1255        }
1256    }
1257    return 0;
1258}
1259
1260ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1261{
1262    if (mEventCode == START_TAG) {
1263        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1264        if (idx < dtohs(tag->attributeCount)) {
1265            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1266                (((const uint8_t*)tag)
1267                 + dtohs(tag->attributeStart)
1268                 + (dtohs(tag->attributeSize)*idx));
1269            outValue->copyFrom_dtoh(attr->typedValue);
1270            if (mTree.mDynamicRefTable != NULL &&
1271                    mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) {
1272                return BAD_TYPE;
1273            }
1274            return sizeof(Res_value);
1275        }
1276    }
1277    return BAD_TYPE;
1278}
1279
1280ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1281{
1282    String16 nsStr(ns != NULL ? ns : "");
1283    String16 attrStr(attr);
1284    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1285                            attrStr.string(), attrStr.size());
1286}
1287
1288ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1289                                       const char16_t* attr, size_t attrLen) const
1290{
1291    if (mEventCode == START_TAG) {
1292        if (attr == NULL) {
1293            return NAME_NOT_FOUND;
1294        }
1295        const size_t N = getAttributeCount();
1296        if (mTree.mStrings.isUTF8()) {
1297            String8 ns8, attr8;
1298            if (ns != NULL) {
1299                ns8 = String8(ns, nsLen);
1300            }
1301            attr8 = String8(attr, attrLen);
1302            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1303                    attr8.string(), attrLen));
1304            for (size_t i=0; i<N; i++) {
1305                size_t curNsLen = 0, curAttrLen = 0;
1306                const char* curNs = getAttributeNamespace8(i, &curNsLen);
1307                const char* curAttr = getAttributeName8(i, &curAttrLen);
1308                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1309                        curAttr, curAttrLen));
1310                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1311                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1312                    if (ns == NULL) {
1313                        if (curNs == NULL) {
1314                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1315                            return i;
1316                        }
1317                    } else if (curNs != NULL) {
1318                        //printf(" --> ns=%s, curNs=%s\n",
1319                        //       String8(ns).string(), String8(curNs).string());
1320                        if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1321                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1322                            return i;
1323                        }
1324                    }
1325                }
1326            }
1327        } else {
1328            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1329                    String8(ns, nsLen).string(), nsLen,
1330                    String8(attr, attrLen).string(), attrLen));
1331            for (size_t i=0; i<N; i++) {
1332                size_t curNsLen = 0, curAttrLen = 0;
1333                const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1334                const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1335                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)",
1336                        String8(curNs, curNsLen).string(), curNsLen,
1337                        String8(curAttr, curAttrLen).string(), curAttrLen));
1338                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1339                        && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1340                    if (ns == NULL) {
1341                        if (curNs == NULL) {
1342                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1343                            return i;
1344                        }
1345                    } else if (curNs != NULL) {
1346                        //printf(" --> ns=%s, curNs=%s\n",
1347                        //       String8(ns).string(), String8(curNs).string());
1348                        if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1349                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1350                            return i;
1351                        }
1352                    }
1353                }
1354            }
1355        }
1356    }
1357
1358    return NAME_NOT_FOUND;
1359}
1360
1361ssize_t ResXMLParser::indexOfID() const
1362{
1363    if (mEventCode == START_TAG) {
1364        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1365        if (idx > 0) return (idx-1);
1366    }
1367    return NAME_NOT_FOUND;
1368}
1369
1370ssize_t ResXMLParser::indexOfClass() const
1371{
1372    if (mEventCode == START_TAG) {
1373        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1374        if (idx > 0) return (idx-1);
1375    }
1376    return NAME_NOT_FOUND;
1377}
1378
1379ssize_t ResXMLParser::indexOfStyle() const
1380{
1381    if (mEventCode == START_TAG) {
1382        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1383        if (idx > 0) return (idx-1);
1384    }
1385    return NAME_NOT_FOUND;
1386}
1387
1388ResXMLParser::event_code_t ResXMLParser::nextNode()
1389{
1390    if (mEventCode < 0) {
1391        return mEventCode;
1392    }
1393
1394    do {
1395        const ResXMLTree_node* next = (const ResXMLTree_node*)
1396            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1397        //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1398
1399        if (((const uint8_t*)next) >= mTree.mDataEnd) {
1400            mCurNode = NULL;
1401            return (mEventCode=END_DOCUMENT);
1402        }
1403
1404        if (mTree.validateNode(next) != NO_ERROR) {
1405            mCurNode = NULL;
1406            return (mEventCode=BAD_DOCUMENT);
1407        }
1408
1409        mCurNode = next;
1410        const uint16_t headerSize = dtohs(next->header.headerSize);
1411        const uint32_t totalSize = dtohl(next->header.size);
1412        mCurExt = ((const uint8_t*)next) + headerSize;
1413        size_t minExtSize = 0;
1414        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1415        switch ((mEventCode=eventCode)) {
1416            case RES_XML_START_NAMESPACE_TYPE:
1417            case RES_XML_END_NAMESPACE_TYPE:
1418                minExtSize = sizeof(ResXMLTree_namespaceExt);
1419                break;
1420            case RES_XML_START_ELEMENT_TYPE:
1421                minExtSize = sizeof(ResXMLTree_attrExt);
1422                break;
1423            case RES_XML_END_ELEMENT_TYPE:
1424                minExtSize = sizeof(ResXMLTree_endElementExt);
1425                break;
1426            case RES_XML_CDATA_TYPE:
1427                minExtSize = sizeof(ResXMLTree_cdataExt);
1428                break;
1429            default:
1430                ALOGW("Unknown XML block: header type %d in node at %d\n",
1431                     (int)dtohs(next->header.type),
1432                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1433                continue;
1434        }
1435
1436        if ((totalSize-headerSize) < minExtSize) {
1437            ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1438                 (int)dtohs(next->header.type),
1439                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1440                 (int)(totalSize-headerSize), (int)minExtSize);
1441            return (mEventCode=BAD_DOCUMENT);
1442        }
1443
1444        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1445        //       mCurNode, mCurExt, headerSize, minExtSize);
1446
1447        return eventCode;
1448    } while (true);
1449}
1450
1451void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1452{
1453    pos->eventCode = mEventCode;
1454    pos->curNode = mCurNode;
1455    pos->curExt = mCurExt;
1456}
1457
1458void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1459{
1460    mEventCode = pos.eventCode;
1461    mCurNode = pos.curNode;
1462    mCurExt = pos.curExt;
1463}
1464
1465// --------------------------------------------------------------------
1466
1467static volatile int32_t gCount = 0;
1468
1469ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable)
1470    : ResXMLParser(*this)
1471    , mDynamicRefTable(dynamicRefTable)
1472    , mError(NO_INIT), mOwnedData(NULL)
1473{
1474    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1475    restart();
1476}
1477
1478ResXMLTree::ResXMLTree()
1479    : ResXMLParser(*this)
1480    , mDynamicRefTable(NULL)
1481    , mError(NO_INIT), mOwnedData(NULL)
1482{
1483    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1484    restart();
1485}
1486
1487ResXMLTree::~ResXMLTree()
1488{
1489    //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1490    uninit();
1491}
1492
1493status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1494{
1495    uninit();
1496    mEventCode = START_DOCUMENT;
1497
1498    if (!data || !size) {
1499        return (mError=BAD_TYPE);
1500    }
1501
1502    if (copyData) {
1503        mOwnedData = malloc(size);
1504        if (mOwnedData == NULL) {
1505            return (mError=NO_MEMORY);
1506        }
1507        memcpy(mOwnedData, data, size);
1508        data = mOwnedData;
1509    }
1510
1511    mHeader = (const ResXMLTree_header*)data;
1512    mSize = dtohl(mHeader->header.size);
1513    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1514        ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1515             (int)dtohs(mHeader->header.headerSize),
1516             (int)dtohl(mHeader->header.size), (int)size);
1517        mError = BAD_TYPE;
1518        restart();
1519        return mError;
1520    }
1521    mDataEnd = ((const uint8_t*)mHeader) + mSize;
1522
1523    mStrings.uninit();
1524    mRootNode = NULL;
1525    mResIds = NULL;
1526    mNumResIds = 0;
1527
1528    // First look for a couple interesting chunks: the string block
1529    // and first XML node.
1530    const ResChunk_header* chunk =
1531        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1532    const ResChunk_header* lastChunk = chunk;
1533    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1534           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1535        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1536        if (err != NO_ERROR) {
1537            mError = err;
1538            goto done;
1539        }
1540        const uint16_t type = dtohs(chunk->type);
1541        const size_t size = dtohl(chunk->size);
1542        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1543                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1544        if (type == RES_STRING_POOL_TYPE) {
1545            mStrings.setTo(chunk, size);
1546        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1547            mResIds = (const uint32_t*)
1548                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1549            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1550        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1551                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1552            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1553                mError = BAD_TYPE;
1554                goto done;
1555            }
1556            mCurNode = (const ResXMLTree_node*)lastChunk;
1557            if (nextNode() == BAD_DOCUMENT) {
1558                mError = BAD_TYPE;
1559                goto done;
1560            }
1561            mRootNode = mCurNode;
1562            mRootExt = mCurExt;
1563            mRootCode = mEventCode;
1564            break;
1565        } else {
1566            XML_NOISY(printf("Skipping unknown chunk!\n"));
1567        }
1568        lastChunk = chunk;
1569        chunk = (const ResChunk_header*)
1570            (((const uint8_t*)chunk) + size);
1571    }
1572
1573    if (mRootNode == NULL) {
1574        ALOGW("Bad XML block: no root element node found\n");
1575        mError = BAD_TYPE;
1576        goto done;
1577    }
1578
1579    mError = mStrings.getError();
1580
1581done:
1582    restart();
1583    return mError;
1584}
1585
1586status_t ResXMLTree::getError() const
1587{
1588    return mError;
1589}
1590
1591void ResXMLTree::uninit()
1592{
1593    mError = NO_INIT;
1594    mStrings.uninit();
1595    if (mOwnedData) {
1596        free(mOwnedData);
1597        mOwnedData = NULL;
1598    }
1599    restart();
1600}
1601
1602status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1603{
1604    const uint16_t eventCode = dtohs(node->header.type);
1605
1606    status_t err = validate_chunk(
1607        &node->header, sizeof(ResXMLTree_node),
1608        mDataEnd, "ResXMLTree_node");
1609
1610    if (err >= NO_ERROR) {
1611        // Only perform additional validation on START nodes
1612        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1613            return NO_ERROR;
1614        }
1615
1616        const uint16_t headerSize = dtohs(node->header.headerSize);
1617        const uint32_t size = dtohl(node->header.size);
1618        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1619            (((const uint8_t*)node) + headerSize);
1620        // check for sensical values pulled out of the stream so far...
1621        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1622                && ((void*)attrExt > (void*)node)) {
1623            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1624                * dtohs(attrExt->attributeCount);
1625            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1626                return NO_ERROR;
1627            }
1628            ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1629                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1630                    (unsigned int)(size-headerSize));
1631        }
1632        else {
1633            ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1634                (unsigned int)headerSize, (unsigned int)size);
1635        }
1636        return BAD_TYPE;
1637    }
1638
1639    return err;
1640
1641#if 0
1642    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1643
1644    const uint16_t headerSize = dtohs(node->header.headerSize);
1645    const uint32_t size = dtohl(node->header.size);
1646
1647    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1648        if (size >= headerSize) {
1649            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1650                if (!isStart) {
1651                    return NO_ERROR;
1652                }
1653                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1654                        <= (size-headerSize)) {
1655                    return NO_ERROR;
1656                }
1657                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1658                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1659                        (int)(size-headerSize));
1660                return BAD_TYPE;
1661            }
1662            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1663                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1664            return BAD_TYPE;
1665        }
1666        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1667                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1668                (int)headerSize, (int)size);
1669        return BAD_TYPE;
1670    }
1671    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1672            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1673            (int)headerSize);
1674    return BAD_TYPE;
1675#endif
1676}
1677
1678// --------------------------------------------------------------------
1679// --------------------------------------------------------------------
1680// --------------------------------------------------------------------
1681
1682void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1683    const size_t size = dtohl(o.size);
1684    if (size >= sizeof(ResTable_config)) {
1685        *this = o;
1686    } else {
1687        memcpy(this, &o, size);
1688        memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1689    }
1690}
1691
1692/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base,
1693        char out[4]) {
1694  if (in[0] & 0x80) {
1695      // The high bit is "1", which means this is a packed three letter
1696      // language code.
1697
1698      // The smallest 5 bits of the second char are the first alphabet.
1699      const uint8_t first = in[1] & 0x1f;
1700      // The last three bits of the second char and the first two bits
1701      // of the first char are the second alphabet.
1702      const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3);
1703      // Bits 3 to 7 (inclusive) of the first char are the third alphabet.
1704      const uint8_t third = (in[0] & 0x7c) >> 2;
1705
1706      out[0] = first + base;
1707      out[1] = second + base;
1708      out[2] = third + base;
1709      out[3] = 0;
1710
1711      return 3;
1712  }
1713
1714  if (in[0]) {
1715      memcpy(out, in, 2);
1716      memset(out + 2, 0, 2);
1717      return 2;
1718  }
1719
1720  memset(out, 0, 4);
1721  return 0;
1722}
1723
1724/* static */ void packLanguageOrRegion(const char* in, const char base,
1725        char out[2]) {
1726  if (in[2] == 0 || in[2] == '-') {
1727      out[0] = in[0];
1728      out[1] = in[1];
1729  } else {
1730      uint8_t first = (in[0] - base) & 0x007f;
1731      uint8_t second = (in[1] - base) & 0x007f;
1732      uint8_t third = (in[2] - base) & 0x007f;
1733
1734      out[0] = (0x80 | (third << 2) | (second >> 3));
1735      out[1] = ((second << 5) | first);
1736  }
1737}
1738
1739
1740void ResTable_config::packLanguage(const char* language) {
1741    packLanguageOrRegion(language, 'a', this->language);
1742}
1743
1744void ResTable_config::packRegion(const char* region) {
1745    packLanguageOrRegion(region, '0', this->country);
1746}
1747
1748size_t ResTable_config::unpackLanguage(char language[4]) const {
1749    return unpackLanguageOrRegion(this->language, 'a', language);
1750}
1751
1752size_t ResTable_config::unpackRegion(char region[4]) const {
1753    return unpackLanguageOrRegion(this->country, '0', region);
1754}
1755
1756
1757void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1758    copyFromDeviceNoSwap(o);
1759    size = sizeof(ResTable_config);
1760    mcc = dtohs(mcc);
1761    mnc = dtohs(mnc);
1762    density = dtohs(density);
1763    screenWidth = dtohs(screenWidth);
1764    screenHeight = dtohs(screenHeight);
1765    sdkVersion = dtohs(sdkVersion);
1766    minorVersion = dtohs(minorVersion);
1767    smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1768    screenWidthDp = dtohs(screenWidthDp);
1769    screenHeightDp = dtohs(screenHeightDp);
1770}
1771
1772void ResTable_config::swapHtoD() {
1773    size = htodl(size);
1774    mcc = htods(mcc);
1775    mnc = htods(mnc);
1776    density = htods(density);
1777    screenWidth = htods(screenWidth);
1778    screenHeight = htods(screenHeight);
1779    sdkVersion = htods(sdkVersion);
1780    minorVersion = htods(minorVersion);
1781    smallestScreenWidthDp = htods(smallestScreenWidthDp);
1782    screenWidthDp = htods(screenWidthDp);
1783    screenHeightDp = htods(screenHeightDp);
1784}
1785
1786/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) {
1787    if (l.locale != r.locale) {
1788        // NOTE: This is the old behaviour with respect to comparison orders.
1789        // The diff value here doesn't make much sense (given our bit packing scheme)
1790        // but it's stable, and that's all we need.
1791        return l.locale - r.locale;
1792    }
1793
1794    // The language & region are equal, so compare the scripts and variants.
1795    int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript));
1796    if (script) {
1797        return script;
1798    }
1799
1800    // The language, region and script are equal, so compare variants.
1801    //
1802    // This should happen very infrequently (if at all.)
1803    return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant));
1804}
1805
1806int ResTable_config::compare(const ResTable_config& o) const {
1807    int32_t diff = (int32_t)(imsi - o.imsi);
1808    if (diff != 0) return diff;
1809    diff = compareLocales(*this, o);
1810    if (diff != 0) return diff;
1811    diff = (int32_t)(screenType - o.screenType);
1812    if (diff != 0) return diff;
1813    diff = (int32_t)(input - o.input);
1814    if (diff != 0) return diff;
1815    diff = (int32_t)(screenSize - o.screenSize);
1816    if (diff != 0) return diff;
1817    diff = (int32_t)(version - o.version);
1818    if (diff != 0) return diff;
1819    diff = (int32_t)(screenLayout - o.screenLayout);
1820    if (diff != 0) return diff;
1821    diff = (int32_t)(uiMode - o.uiMode);
1822    if (diff != 0) return diff;
1823    diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1824    if (diff != 0) return diff;
1825    diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1826    return (int)diff;
1827}
1828
1829int ResTable_config::compareLogical(const ResTable_config& o) const {
1830    if (mcc != o.mcc) {
1831        return mcc < o.mcc ? -1 : 1;
1832    }
1833    if (mnc != o.mnc) {
1834        return mnc < o.mnc ? -1 : 1;
1835    }
1836
1837    int diff = compareLocales(*this, o);
1838    if (diff < 0) {
1839        return -1;
1840    }
1841    if (diff > 0) {
1842        return 1;
1843    }
1844
1845    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1846        return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1847    }
1848    if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1849        return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1850    }
1851    if (screenWidthDp != o.screenWidthDp) {
1852        return screenWidthDp < o.screenWidthDp ? -1 : 1;
1853    }
1854    if (screenHeightDp != o.screenHeightDp) {
1855        return screenHeightDp < o.screenHeightDp ? -1 : 1;
1856    }
1857    if (screenWidth != o.screenWidth) {
1858        return screenWidth < o.screenWidth ? -1 : 1;
1859    }
1860    if (screenHeight != o.screenHeight) {
1861        return screenHeight < o.screenHeight ? -1 : 1;
1862    }
1863    if (density != o.density) {
1864        return density < o.density ? -1 : 1;
1865    }
1866    if (orientation != o.orientation) {
1867        return orientation < o.orientation ? -1 : 1;
1868    }
1869    if (touchscreen != o.touchscreen) {
1870        return touchscreen < o.touchscreen ? -1 : 1;
1871    }
1872    if (input != o.input) {
1873        return input < o.input ? -1 : 1;
1874    }
1875    if (screenLayout != o.screenLayout) {
1876        return screenLayout < o.screenLayout ? -1 : 1;
1877    }
1878    if (uiMode != o.uiMode) {
1879        return uiMode < o.uiMode ? -1 : 1;
1880    }
1881    if (version != o.version) {
1882        return version < o.version ? -1 : 1;
1883    }
1884    return 0;
1885}
1886
1887int ResTable_config::diff(const ResTable_config& o) const {
1888    int diffs = 0;
1889    if (mcc != o.mcc) diffs |= CONFIG_MCC;
1890    if (mnc != o.mnc) diffs |= CONFIG_MNC;
1891    if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1892    if (density != o.density) diffs |= CONFIG_DENSITY;
1893    if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1894    if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1895            diffs |= CONFIG_KEYBOARD_HIDDEN;
1896    if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1897    if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1898    if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1899    if (version != o.version) diffs |= CONFIG_VERSION;
1900    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1901    if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1902    if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1903    if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1904    if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1905
1906    const int diff = compareLocales(*this, o);
1907    if (diff) diffs |= CONFIG_LOCALE;
1908
1909    return diffs;
1910}
1911
1912int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const {
1913    if (locale || o.locale) {
1914        if (language[0] != o.language[0]) {
1915            if (!language[0]) return -1;
1916            if (!o.language[0]) return 1;
1917        }
1918
1919        if (country[0] != o.country[0]) {
1920            if (!country[0]) return -1;
1921            if (!o.country[0]) return 1;
1922        }
1923    }
1924
1925    // There isn't a well specified "importance" order between variants and
1926    // scripts. We can't easily tell whether, say "en-Latn-US" is more or less
1927    // specific than "en-US-POSIX".
1928    //
1929    // We therefore arbitrarily decide to give priority to variants over
1930    // scripts since it seems more useful to do so. We will consider
1931    // "en-US-POSIX" to be more specific than "en-Latn-US".
1932
1933    const int score = ((localeScript[0] != 0) ? 1 : 0) +
1934        ((localeVariant[0] != 0) ? 2 : 0);
1935
1936    const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) +
1937        ((o.localeVariant[0] != 0) ? 2 : 0);
1938
1939    return score - oScore;
1940
1941}
1942
1943bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1944    // The order of the following tests defines the importance of one
1945    // configuration parameter over another.  Those tests first are more
1946    // important, trumping any values in those following them.
1947    if (imsi || o.imsi) {
1948        if (mcc != o.mcc) {
1949            if (!mcc) return false;
1950            if (!o.mcc) return true;
1951        }
1952
1953        if (mnc != o.mnc) {
1954            if (!mnc) return false;
1955            if (!o.mnc) return true;
1956        }
1957    }
1958
1959    if (locale || o.locale) {
1960        const int diff = isLocaleMoreSpecificThan(o);
1961        if (diff < 0) {
1962            return false;
1963        }
1964
1965        if (diff > 0) {
1966            return true;
1967        }
1968    }
1969
1970    if (screenLayout || o.screenLayout) {
1971        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1972            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1973            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1974        }
1975    }
1976
1977    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1978        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1979            if (!smallestScreenWidthDp) return false;
1980            if (!o.smallestScreenWidthDp) return true;
1981        }
1982    }
1983
1984    if (screenSizeDp || o.screenSizeDp) {
1985        if (screenWidthDp != o.screenWidthDp) {
1986            if (!screenWidthDp) return false;
1987            if (!o.screenWidthDp) return true;
1988        }
1989
1990        if (screenHeightDp != o.screenHeightDp) {
1991            if (!screenHeightDp) return false;
1992            if (!o.screenHeightDp) return true;
1993        }
1994    }
1995
1996    if (screenLayout || o.screenLayout) {
1997        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1998            if (!(screenLayout & MASK_SCREENSIZE)) return false;
1999            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
2000        }
2001        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
2002            if (!(screenLayout & MASK_SCREENLONG)) return false;
2003            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
2004        }
2005    }
2006
2007    if (orientation != o.orientation) {
2008        if (!orientation) return false;
2009        if (!o.orientation) return true;
2010    }
2011
2012    if (uiMode || o.uiMode) {
2013        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
2014            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
2015            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
2016        }
2017        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
2018            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
2019            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
2020        }
2021    }
2022
2023    // density is never 'more specific'
2024    // as the default just equals 160
2025
2026    if (touchscreen != o.touchscreen) {
2027        if (!touchscreen) return false;
2028        if (!o.touchscreen) return true;
2029    }
2030
2031    if (input || o.input) {
2032        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
2033            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
2034            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
2035        }
2036
2037        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
2038            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
2039            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
2040        }
2041
2042        if (keyboard != o.keyboard) {
2043            if (!keyboard) return false;
2044            if (!o.keyboard) return true;
2045        }
2046
2047        if (navigation != o.navigation) {
2048            if (!navigation) return false;
2049            if (!o.navigation) return true;
2050        }
2051    }
2052
2053    if (screenSize || o.screenSize) {
2054        if (screenWidth != o.screenWidth) {
2055            if (!screenWidth) return false;
2056            if (!o.screenWidth) return true;
2057        }
2058
2059        if (screenHeight != o.screenHeight) {
2060            if (!screenHeight) return false;
2061            if (!o.screenHeight) return true;
2062        }
2063    }
2064
2065    if (version || o.version) {
2066        if (sdkVersion != o.sdkVersion) {
2067            if (!sdkVersion) return false;
2068            if (!o.sdkVersion) return true;
2069        }
2070
2071        if (minorVersion != o.minorVersion) {
2072            if (!minorVersion) return false;
2073            if (!o.minorVersion) return true;
2074        }
2075    }
2076    return false;
2077}
2078
2079bool ResTable_config::isBetterThan(const ResTable_config& o,
2080        const ResTable_config* requested) const {
2081    if (requested) {
2082        if (imsi || o.imsi) {
2083            if ((mcc != o.mcc) && requested->mcc) {
2084                return (mcc);
2085            }
2086
2087            if ((mnc != o.mnc) && requested->mnc) {
2088                return (mnc);
2089            }
2090        }
2091
2092        if (locale || o.locale) {
2093            if ((language[0] != o.language[0]) && requested->language[0]) {
2094                return (language[0]);
2095            }
2096
2097            if ((country[0] != o.country[0]) && requested->country[0]) {
2098                return (country[0]);
2099            }
2100        }
2101
2102        if (localeScript[0] || o.localeScript[0]) {
2103            if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) {
2104                return localeScript[0];
2105            }
2106        }
2107
2108        if (localeVariant[0] || o.localeVariant[0]) {
2109            if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) {
2110                return localeVariant[0];
2111            }
2112        }
2113
2114        if (screenLayout || o.screenLayout) {
2115            if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
2116                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
2117                int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
2118                int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
2119                return (myLayoutDir > oLayoutDir);
2120            }
2121        }
2122
2123        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
2124            // The configuration closest to the actual size is best.
2125            // We assume that larger configs have already been filtered
2126            // out at this point.  That means we just want the largest one.
2127            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
2128                return smallestScreenWidthDp > o.smallestScreenWidthDp;
2129            }
2130        }
2131
2132        if (screenSizeDp || o.screenSizeDp) {
2133            // "Better" is based on the sum of the difference between both
2134            // width and height from the requested dimensions.  We are
2135            // assuming the invalid configs (with smaller dimens) have
2136            // already been filtered.  Note that if a particular dimension
2137            // is unspecified, we will end up with a large value (the
2138            // difference between 0 and the requested dimension), which is
2139            // good since we will prefer a config that has specified a
2140            // dimension value.
2141            int myDelta = 0, otherDelta = 0;
2142            if (requested->screenWidthDp) {
2143                myDelta += requested->screenWidthDp - screenWidthDp;
2144                otherDelta += requested->screenWidthDp - o.screenWidthDp;
2145            }
2146            if (requested->screenHeightDp) {
2147                myDelta += requested->screenHeightDp - screenHeightDp;
2148                otherDelta += requested->screenHeightDp - o.screenHeightDp;
2149            }
2150            //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
2151            //    screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
2152            //    requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
2153            if (myDelta != otherDelta) {
2154                return myDelta < otherDelta;
2155            }
2156        }
2157
2158        if (screenLayout || o.screenLayout) {
2159            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
2160                    && (requested->screenLayout & MASK_SCREENSIZE)) {
2161                // A little backwards compatibility here: undefined is
2162                // considered equivalent to normal.  But only if the
2163                // requested size is at least normal; otherwise, small
2164                // is better than the default.
2165                int mySL = (screenLayout & MASK_SCREENSIZE);
2166                int oSL = (o.screenLayout & MASK_SCREENSIZE);
2167                int fixedMySL = mySL;
2168                int fixedOSL = oSL;
2169                if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
2170                    if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
2171                    if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
2172                }
2173                // For screen size, the best match is the one that is
2174                // closest to the requested screen size, but not over
2175                // (the not over part is dealt with in match() below).
2176                if (fixedMySL == fixedOSL) {
2177                    // If the two are the same, but 'this' is actually
2178                    // undefined, then the other is really a better match.
2179                    if (mySL == 0) return false;
2180                    return true;
2181                }
2182                if (fixedMySL != fixedOSL) {
2183                    return fixedMySL > fixedOSL;
2184                }
2185            }
2186            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
2187                    && (requested->screenLayout & MASK_SCREENLONG)) {
2188                return (screenLayout & MASK_SCREENLONG);
2189            }
2190        }
2191
2192        if ((orientation != o.orientation) && requested->orientation) {
2193            return (orientation);
2194        }
2195
2196        if (uiMode || o.uiMode) {
2197            if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
2198                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
2199                return (uiMode & MASK_UI_MODE_TYPE);
2200            }
2201            if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
2202                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
2203                return (uiMode & MASK_UI_MODE_NIGHT);
2204            }
2205        }
2206
2207        if (screenType || o.screenType) {
2208            if (density != o.density) {
2209                // density is tough.  Any density is potentially useful
2210                // because the system will scale it.  Scaling down
2211                // is generally better than scaling up.
2212                // Default density counts as 160dpi (the system default)
2213                // TODO - remove 160 constants
2214                int h = (density?density:160);
2215                int l = (o.density?o.density:160);
2216                bool bImBigger = true;
2217                if (l > h) {
2218                    int t = h;
2219                    h = l;
2220                    l = t;
2221                    bImBigger = false;
2222                }
2223
2224                int reqValue = (requested->density?requested->density:160);
2225                if (reqValue >= h) {
2226                    // requested value higher than both l and h, give h
2227                    return bImBigger;
2228                }
2229                if (l >= reqValue) {
2230                    // requested value lower than both l and h, give l
2231                    return !bImBigger;
2232                }
2233                // saying that scaling down is 2x better than up
2234                if (((2 * l) - reqValue) * h > reqValue * reqValue) {
2235                    return !bImBigger;
2236                } else {
2237                    return bImBigger;
2238                }
2239            }
2240
2241            if ((touchscreen != o.touchscreen) && requested->touchscreen) {
2242                return (touchscreen);
2243            }
2244        }
2245
2246        if (input || o.input) {
2247            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
2248            const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
2249            if (keysHidden != oKeysHidden) {
2250                const int reqKeysHidden =
2251                        requested->inputFlags & MASK_KEYSHIDDEN;
2252                if (reqKeysHidden) {
2253
2254                    if (!keysHidden) return false;
2255                    if (!oKeysHidden) return true;
2256                    // For compatibility, we count KEYSHIDDEN_NO as being
2257                    // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
2258                    // these by making an exact match more specific.
2259                    if (reqKeysHidden == keysHidden) return true;
2260                    if (reqKeysHidden == oKeysHidden) return false;
2261                }
2262            }
2263
2264            const int navHidden = inputFlags & MASK_NAVHIDDEN;
2265            const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
2266            if (navHidden != oNavHidden) {
2267                const int reqNavHidden =
2268                        requested->inputFlags & MASK_NAVHIDDEN;
2269                if (reqNavHidden) {
2270
2271                    if (!navHidden) return false;
2272                    if (!oNavHidden) return true;
2273                }
2274            }
2275
2276            if ((keyboard != o.keyboard) && requested->keyboard) {
2277                return (keyboard);
2278            }
2279
2280            if ((navigation != o.navigation) && requested->navigation) {
2281                return (navigation);
2282            }
2283        }
2284
2285        if (screenSize || o.screenSize) {
2286            // "Better" is based on the sum of the difference between both
2287            // width and height from the requested dimensions.  We are
2288            // assuming the invalid configs (with smaller sizes) have
2289            // already been filtered.  Note that if a particular dimension
2290            // is unspecified, we will end up with a large value (the
2291            // difference between 0 and the requested dimension), which is
2292            // good since we will prefer a config that has specified a
2293            // size value.
2294            int myDelta = 0, otherDelta = 0;
2295            if (requested->screenWidth) {
2296                myDelta += requested->screenWidth - screenWidth;
2297                otherDelta += requested->screenWidth - o.screenWidth;
2298            }
2299            if (requested->screenHeight) {
2300                myDelta += requested->screenHeight - screenHeight;
2301                otherDelta += requested->screenHeight - o.screenHeight;
2302            }
2303            if (myDelta != otherDelta) {
2304                return myDelta < otherDelta;
2305            }
2306        }
2307
2308        if (version || o.version) {
2309            if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2310                return (sdkVersion > o.sdkVersion);
2311            }
2312
2313            if ((minorVersion != o.minorVersion) &&
2314                    requested->minorVersion) {
2315                return (minorVersion);
2316            }
2317        }
2318
2319        return false;
2320    }
2321    return isMoreSpecificThan(o);
2322}
2323
2324bool ResTable_config::match(const ResTable_config& settings) const {
2325    if (imsi != 0) {
2326        if (mcc != 0 && mcc != settings.mcc) {
2327            return false;
2328        }
2329        if (mnc != 0 && mnc != settings.mnc) {
2330            return false;
2331        }
2332    }
2333    if (locale != 0) {
2334        // Don't consider the script & variants when deciding matches.
2335        //
2336        // If we two configs differ only in their script or language, they
2337        // can be weeded out in the isMoreSpecificThan test.
2338        if (language[0] != 0
2339            && (language[0] != settings.language[0]
2340                || language[1] != settings.language[1])) {
2341            return false;
2342        }
2343
2344        if (country[0] != 0
2345            && (country[0] != settings.country[0]
2346                || country[1] != settings.country[1])) {
2347            return false;
2348        }
2349    }
2350
2351    if (screenConfig != 0) {
2352        const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2353        const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2354        if (layoutDir != 0 && layoutDir != setLayoutDir) {
2355            return false;
2356        }
2357
2358        const int screenSize = screenLayout&MASK_SCREENSIZE;
2359        const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2360        // Any screen sizes for larger screens than the setting do not
2361        // match.
2362        if (screenSize != 0 && screenSize > setScreenSize) {
2363            return false;
2364        }
2365
2366        const int screenLong = screenLayout&MASK_SCREENLONG;
2367        const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2368        if (screenLong != 0 && screenLong != setScreenLong) {
2369            return false;
2370        }
2371
2372        const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2373        const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2374        if (uiModeType != 0 && uiModeType != setUiModeType) {
2375            return false;
2376        }
2377
2378        const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2379        const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2380        if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2381            return false;
2382        }
2383
2384        if (smallestScreenWidthDp != 0
2385                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2386            return false;
2387        }
2388    }
2389    if (screenSizeDp != 0) {
2390        if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2391            //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2392            return false;
2393        }
2394        if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2395            //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2396            return false;
2397        }
2398    }
2399    if (screenType != 0) {
2400        if (orientation != 0 && orientation != settings.orientation) {
2401            return false;
2402        }
2403        // density always matches - we can scale it.  See isBetterThan
2404        if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2405            return false;
2406        }
2407    }
2408    if (input != 0) {
2409        const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2410        const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2411        if (keysHidden != 0 && keysHidden != setKeysHidden) {
2412            // For compatibility, we count a request for KEYSHIDDEN_NO as also
2413            // matching the more recent KEYSHIDDEN_SOFT.  Basically
2414            // KEYSHIDDEN_NO means there is some kind of keyboard available.
2415            //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2416            if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2417                //ALOGI("No match!");
2418                return false;
2419            }
2420        }
2421        const int navHidden = inputFlags&MASK_NAVHIDDEN;
2422        const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2423        if (navHidden != 0 && navHidden != setNavHidden) {
2424            return false;
2425        }
2426        if (keyboard != 0 && keyboard != settings.keyboard) {
2427            return false;
2428        }
2429        if (navigation != 0 && navigation != settings.navigation) {
2430            return false;
2431        }
2432    }
2433    if (screenSize != 0) {
2434        if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2435            return false;
2436        }
2437        if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2438            return false;
2439        }
2440    }
2441    if (version != 0) {
2442        if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2443            return false;
2444        }
2445        if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2446            return false;
2447        }
2448    }
2449    return true;
2450}
2451
2452void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const {
2453    memset(str, 0, RESTABLE_MAX_LOCALE_LEN);
2454
2455    // This represents the "any" locale value, which has traditionally been
2456    // represented by the empty string.
2457    if (!language[0] && !country[0]) {
2458        return;
2459    }
2460
2461    size_t charsWritten = 0;
2462    if (language[0]) {
2463        charsWritten += unpackLanguage(str);
2464    }
2465
2466    if (localeScript[0]) {
2467        if (charsWritten) {
2468            str[charsWritten++] = '-';
2469        }
2470        memcpy(str + charsWritten, localeScript, sizeof(localeScript));
2471        charsWritten += sizeof(localeScript);
2472    }
2473
2474    if (country[0]) {
2475        if (charsWritten) {
2476            str[charsWritten++] = '-';
2477        }
2478        charsWritten += unpackRegion(str + charsWritten);
2479    }
2480
2481    if (localeVariant[0]) {
2482        if (charsWritten) {
2483            str[charsWritten++] = '-';
2484        }
2485        memcpy(str + charsWritten, localeVariant, sizeof(localeVariant));
2486    }
2487}
2488
2489/* static */ inline bool assignLocaleComponent(ResTable_config* config,
2490        const char* start, size_t size) {
2491
2492  switch (size) {
2493       case 0:
2494           return false;
2495       case 2:
2496       case 3:
2497           config->language[0] ? config->packRegion(start) : config->packLanguage(start);
2498           break;
2499       case 4:
2500           config->localeScript[0] = toupper(start[0]);
2501           for (size_t i = 1; i < 4; ++i) {
2502               config->localeScript[i] = tolower(start[i]);
2503           }
2504           break;
2505       case 5:
2506       case 6:
2507       case 7:
2508       case 8:
2509           for (size_t i = 0; i < size; ++i) {
2510               config->localeVariant[i] = tolower(start[i]);
2511           }
2512           break;
2513       default:
2514           return false;
2515  }
2516
2517  return true;
2518}
2519
2520void ResTable_config::setBcp47Locale(const char* in) {
2521    locale = 0;
2522    memset(localeScript, 0, sizeof(localeScript));
2523    memset(localeVariant, 0, sizeof(localeVariant));
2524
2525    const char* separator = in;
2526    const char* start = in;
2527    while ((separator = strchr(start, '-')) != NULL) {
2528        const size_t size = separator - start;
2529        if (!assignLocaleComponent(this, start, size)) {
2530            fprintf(stderr, "Invalid BCP-47 locale string: %s", in);
2531        }
2532
2533        start = (separator + 1);
2534    }
2535
2536    const size_t size = in + strlen(in) - start;
2537    assignLocaleComponent(this, start, size);
2538}
2539
2540String8 ResTable_config::toString() const {
2541    String8 res;
2542
2543    if (mcc != 0) {
2544        if (res.size() > 0) res.append("-");
2545        res.appendFormat("mcc%d", dtohs(mcc));
2546    }
2547    if (mnc != 0) {
2548        if (res.size() > 0) res.append("-");
2549        res.appendFormat("mnc%d", dtohs(mnc));
2550    }
2551
2552    char localeStr[RESTABLE_MAX_LOCALE_LEN];
2553    getBcp47Locale(localeStr);
2554    if (strlen(localeStr) > 0) {
2555        if (res.size() > 0) res.append("-");
2556        res.append(localeStr);
2557    }
2558
2559    if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2560        if (res.size() > 0) res.append("-");
2561        switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2562            case ResTable_config::LAYOUTDIR_LTR:
2563                res.append("ldltr");
2564                break;
2565            case ResTable_config::LAYOUTDIR_RTL:
2566                res.append("ldrtl");
2567                break;
2568            default:
2569                res.appendFormat("layoutDir=%d",
2570                        dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2571                break;
2572        }
2573    }
2574    if (smallestScreenWidthDp != 0) {
2575        if (res.size() > 0) res.append("-");
2576        res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2577    }
2578    if (screenWidthDp != 0) {
2579        if (res.size() > 0) res.append("-");
2580        res.appendFormat("w%ddp", dtohs(screenWidthDp));
2581    }
2582    if (screenHeightDp != 0) {
2583        if (res.size() > 0) res.append("-");
2584        res.appendFormat("h%ddp", dtohs(screenHeightDp));
2585    }
2586    if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2587        if (res.size() > 0) res.append("-");
2588        switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2589            case ResTable_config::SCREENSIZE_SMALL:
2590                res.append("small");
2591                break;
2592            case ResTable_config::SCREENSIZE_NORMAL:
2593                res.append("normal");
2594                break;
2595            case ResTable_config::SCREENSIZE_LARGE:
2596                res.append("large");
2597                break;
2598            case ResTable_config::SCREENSIZE_XLARGE:
2599                res.append("xlarge");
2600                break;
2601            default:
2602                res.appendFormat("screenLayoutSize=%d",
2603                        dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2604                break;
2605        }
2606    }
2607    if ((screenLayout&MASK_SCREENLONG) != 0) {
2608        if (res.size() > 0) res.append("-");
2609        switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2610            case ResTable_config::SCREENLONG_NO:
2611                res.append("notlong");
2612                break;
2613            case ResTable_config::SCREENLONG_YES:
2614                res.append("long");
2615                break;
2616            default:
2617                res.appendFormat("screenLayoutLong=%d",
2618                        dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2619                break;
2620        }
2621    }
2622    if (orientation != ORIENTATION_ANY) {
2623        if (res.size() > 0) res.append("-");
2624        switch (orientation) {
2625            case ResTable_config::ORIENTATION_PORT:
2626                res.append("port");
2627                break;
2628            case ResTable_config::ORIENTATION_LAND:
2629                res.append("land");
2630                break;
2631            case ResTable_config::ORIENTATION_SQUARE:
2632                res.append("square");
2633                break;
2634            default:
2635                res.appendFormat("orientation=%d", dtohs(orientation));
2636                break;
2637        }
2638    }
2639    if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2640        if (res.size() > 0) res.append("-");
2641        switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2642            case ResTable_config::UI_MODE_TYPE_DESK:
2643                res.append("desk");
2644                break;
2645            case ResTable_config::UI_MODE_TYPE_CAR:
2646                res.append("car");
2647                break;
2648            case ResTable_config::UI_MODE_TYPE_TELEVISION:
2649                res.append("television");
2650                break;
2651            case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2652                res.append("appliance");
2653                break;
2654            case ResTable_config::UI_MODE_TYPE_WATCH:
2655                res.append("watch");
2656                break;
2657            default:
2658                res.appendFormat("uiModeType=%d",
2659                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2660                break;
2661        }
2662    }
2663    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2664        if (res.size() > 0) res.append("-");
2665        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2666            case ResTable_config::UI_MODE_NIGHT_NO:
2667                res.append("notnight");
2668                break;
2669            case ResTable_config::UI_MODE_NIGHT_YES:
2670                res.append("night");
2671                break;
2672            default:
2673                res.appendFormat("uiModeNight=%d",
2674                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2675                break;
2676        }
2677    }
2678    if (density != DENSITY_DEFAULT) {
2679        if (res.size() > 0) res.append("-");
2680        switch (density) {
2681            case ResTable_config::DENSITY_LOW:
2682                res.append("ldpi");
2683                break;
2684            case ResTable_config::DENSITY_MEDIUM:
2685                res.append("mdpi");
2686                break;
2687            case ResTable_config::DENSITY_TV:
2688                res.append("tvdpi");
2689                break;
2690            case ResTable_config::DENSITY_HIGH:
2691                res.append("hdpi");
2692                break;
2693            case ResTable_config::DENSITY_XHIGH:
2694                res.append("xhdpi");
2695                break;
2696            case ResTable_config::DENSITY_XXHIGH:
2697                res.append("xxhdpi");
2698                break;
2699            case ResTable_config::DENSITY_XXXHIGH:
2700                res.append("xxxhdpi");
2701                break;
2702            case ResTable_config::DENSITY_NONE:
2703                res.append("nodpi");
2704                break;
2705            default:
2706                res.appendFormat("%ddpi", dtohs(density));
2707                break;
2708        }
2709    }
2710    if (touchscreen != TOUCHSCREEN_ANY) {
2711        if (res.size() > 0) res.append("-");
2712        switch (touchscreen) {
2713            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2714                res.append("notouch");
2715                break;
2716            case ResTable_config::TOUCHSCREEN_FINGER:
2717                res.append("finger");
2718                break;
2719            case ResTable_config::TOUCHSCREEN_STYLUS:
2720                res.append("stylus");
2721                break;
2722            default:
2723                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2724                break;
2725        }
2726    }
2727    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2728        if (res.size() > 0) res.append("-");
2729        switch (inputFlags&MASK_KEYSHIDDEN) {
2730            case ResTable_config::KEYSHIDDEN_NO:
2731                res.append("keysexposed");
2732                break;
2733            case ResTable_config::KEYSHIDDEN_YES:
2734                res.append("keyshidden");
2735                break;
2736            case ResTable_config::KEYSHIDDEN_SOFT:
2737                res.append("keyssoft");
2738                break;
2739        }
2740    }
2741    if (keyboard != KEYBOARD_ANY) {
2742        if (res.size() > 0) res.append("-");
2743        switch (keyboard) {
2744            case ResTable_config::KEYBOARD_NOKEYS:
2745                res.append("nokeys");
2746                break;
2747            case ResTable_config::KEYBOARD_QWERTY:
2748                res.append("qwerty");
2749                break;
2750            case ResTable_config::KEYBOARD_12KEY:
2751                res.append("12key");
2752                break;
2753            default:
2754                res.appendFormat("keyboard=%d", dtohs(keyboard));
2755                break;
2756        }
2757    }
2758    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2759        if (res.size() > 0) res.append("-");
2760        switch (inputFlags&MASK_NAVHIDDEN) {
2761            case ResTable_config::NAVHIDDEN_NO:
2762                res.append("navexposed");
2763                break;
2764            case ResTable_config::NAVHIDDEN_YES:
2765                res.append("navhidden");
2766                break;
2767            default:
2768                res.appendFormat("inputFlagsNavHidden=%d",
2769                        dtohs(inputFlags&MASK_NAVHIDDEN));
2770                break;
2771        }
2772    }
2773    if (navigation != NAVIGATION_ANY) {
2774        if (res.size() > 0) res.append("-");
2775        switch (navigation) {
2776            case ResTable_config::NAVIGATION_NONAV:
2777                res.append("nonav");
2778                break;
2779            case ResTable_config::NAVIGATION_DPAD:
2780                res.append("dpad");
2781                break;
2782            case ResTable_config::NAVIGATION_TRACKBALL:
2783                res.append("trackball");
2784                break;
2785            case ResTable_config::NAVIGATION_WHEEL:
2786                res.append("wheel");
2787                break;
2788            default:
2789                res.appendFormat("navigation=%d", dtohs(navigation));
2790                break;
2791        }
2792    }
2793    if (screenSize != 0) {
2794        if (res.size() > 0) res.append("-");
2795        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2796    }
2797    if (version != 0) {
2798        if (res.size() > 0) res.append("-");
2799        res.appendFormat("v%d", dtohs(sdkVersion));
2800        if (minorVersion != 0) {
2801            res.appendFormat(".%d", dtohs(minorVersion));
2802        }
2803    }
2804
2805    return res;
2806}
2807
2808// --------------------------------------------------------------------
2809// --------------------------------------------------------------------
2810// --------------------------------------------------------------------
2811
2812struct ResTable::Header
2813{
2814    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2815        resourceIDMap(NULL), resourceIDMapSize(0) { }
2816
2817    ~Header()
2818    {
2819        free(resourceIDMap);
2820    }
2821
2822    const ResTable* const           owner;
2823    void*                           ownedData;
2824    const ResTable_header*          header;
2825    size_t                          size;
2826    const uint8_t*                  dataEnd;
2827    size_t                          index;
2828    int32_t                         cookie;
2829
2830    ResStringPool                   values;
2831    uint32_t*                       resourceIDMap;
2832    size_t                          resourceIDMapSize;
2833};
2834
2835struct ResTable::Entry {
2836    ResTable_config config;
2837    const ResTable_entry* entry;
2838    const ResTable_type* type;
2839    uint32_t specFlags;
2840    const Package* package;
2841
2842    StringPoolRef typeStr;
2843    StringPoolRef keyStr;
2844};
2845
2846struct ResTable::Type
2847{
2848    Type(const Header* _header, const Package* _package, size_t count)
2849        : header(_header), package(_package), entryCount(count),
2850          typeSpec(NULL), typeSpecFlags(NULL) { }
2851    const Header* const             header;
2852    const Package* const            package;
2853    const size_t                    entryCount;
2854    const ResTable_typeSpec*        typeSpec;
2855    const uint32_t*                 typeSpecFlags;
2856    IdmapEntries                    idmapEntries;
2857    Vector<const ResTable_type*>    configs;
2858};
2859
2860struct ResTable::Package
2861{
2862    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2863        : owner(_owner), header(_header), package(_package), typeIdOffset(0) {
2864        if (dtohs(package->header.headerSize) == sizeof(package)) {
2865            // The package structure is the same size as the definition.
2866            // This means it contains the typeIdOffset field.
2867            typeIdOffset = package->typeIdOffset;
2868        }
2869    }
2870
2871    const ResTable* const           owner;
2872    const Header* const             header;
2873    const ResTable_package* const   package;
2874
2875    ResStringPool                   typeStrings;
2876    ResStringPool                   keyStrings;
2877
2878    size_t                          typeIdOffset;
2879};
2880
2881// A group of objects describing a particular resource package.
2882// The first in 'package' is always the root object (from the resource
2883// table that defined the package); the ones after are skins on top of it.
2884struct ResTable::PackageGroup
2885{
2886    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2887        : owner(_owner)
2888        , name(_name)
2889        , id(_id)
2890        , largestTypeId(0)
2891        , bags(NULL)
2892        , dynamicRefTable(static_cast<uint8_t>(_id))
2893    { }
2894
2895    ~PackageGroup() {
2896        clearBagCache();
2897        const size_t numTypes = types.size();
2898        for (size_t i = 0; i < numTypes; i++) {
2899            const TypeList& typeList = types[i];
2900            const size_t numInnerTypes = typeList.size();
2901            for (size_t j = 0; j < numInnerTypes; j++) {
2902                if (typeList[j]->package->owner == owner) {
2903                    delete typeList[j];
2904                }
2905            }
2906        }
2907
2908        const size_t N = packages.size();
2909        for (size_t i=0; i<N; i++) {
2910            Package* pkg = packages[i];
2911            if (pkg->owner == owner) {
2912                delete pkg;
2913            }
2914        }
2915    }
2916
2917    void clearBagCache() {
2918        if (bags) {
2919            TABLE_NOISY(printf("bags=%p\n", bags));
2920            for (size_t i = 0; i < bags->size(); i++) {
2921                TABLE_NOISY(printf("type=%d\n", i));
2922                const TypeList& typeList = types[i];
2923                if (typeList.isEmpty()) {
2924                    bag_set** typeBags = bags->get(i);
2925                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2926                    if (typeBags) {
2927                        const size_t N = typeList[0]->entryCount;
2928                        TABLE_NOISY(printf("type->entryCount=%x\n", N));
2929                        for (size_t j=0; j<N; j++) {
2930                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2931                                free(typeBags[j]);
2932                        }
2933                        free(typeBags);
2934                    }
2935                }
2936            }
2937            delete bags;
2938            bags = NULL;
2939        }
2940    }
2941
2942    ssize_t findType16(const char16_t* type, size_t len) const {
2943        const size_t N = packages.size();
2944        for (size_t i = 0; i < N; i++) {
2945            ssize_t index = packages[i]->typeStrings.indexOfString(type, len);
2946            if (index >= 0) {
2947                return index + packages[i]->typeIdOffset;
2948            }
2949        }
2950        return -1;
2951    }
2952
2953    const ResTable* const           owner;
2954    String16 const                  name;
2955    uint32_t const                  id;
2956
2957    // This is mainly used to keep track of the loaded packages
2958    // and to clean them up properly. Accessing resources happens from
2959    // the 'types' array.
2960    Vector<Package*>                packages;
2961
2962    ByteBucketArray<TypeList>       types;
2963
2964    uint8_t                         largestTypeId;
2965
2966    // Computed attribute bags, first indexed by the type and second
2967    // by the entry in that type.
2968    ByteBucketArray<bag_set**>*     bags;
2969
2970    // The table mapping dynamic references to resolved references for
2971    // this package group.
2972    // TODO: We may be able to support dynamic references in overlays
2973    // by having these tables in a per-package scope rather than
2974    // per-package-group.
2975    DynamicRefTable                 dynamicRefTable;
2976};
2977
2978struct ResTable::bag_set
2979{
2980    size_t numAttrs;    // number in array
2981    size_t availAttrs;  // total space in array
2982    uint32_t typeSpecFlags;
2983    // Followed by 'numAttr' bag_entry structures.
2984};
2985
2986ResTable::Theme::Theme(const ResTable& table)
2987    : mTable(table)
2988{
2989    memset(mPackages, 0, sizeof(mPackages));
2990}
2991
2992ResTable::Theme::~Theme()
2993{
2994    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2995        package_info* pi = mPackages[i];
2996        if (pi != NULL) {
2997            free_package(pi);
2998        }
2999    }
3000}
3001
3002void ResTable::Theme::free_package(package_info* pi)
3003{
3004    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3005        theme_entry* te = pi->types[j].entries;
3006        if (te != NULL) {
3007            free(te);
3008        }
3009    }
3010    free(pi);
3011}
3012
3013ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
3014{
3015    package_info* newpi = (package_info*)malloc(sizeof(package_info));
3016    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3017        size_t cnt = pi->types[j].numEntries;
3018        newpi->types[j].numEntries = cnt;
3019        theme_entry* te = pi->types[j].entries;
3020        if (te != NULL) {
3021            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3022            newpi->types[j].entries = newte;
3023            memcpy(newte, te, cnt*sizeof(theme_entry));
3024        } else {
3025            newpi->types[j].entries = NULL;
3026        }
3027    }
3028    return newpi;
3029}
3030
3031status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
3032{
3033    const bag_entry* bag;
3034    uint32_t bagTypeSpecFlags = 0;
3035    mTable.lock();
3036    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
3037    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
3038    if (N < 0) {
3039        mTable.unlock();
3040        return N;
3041    }
3042
3043    uint32_t curPackage = 0xffffffff;
3044    ssize_t curPackageIndex = 0;
3045    package_info* curPI = NULL;
3046    uint32_t curType = 0xffffffff;
3047    size_t numEntries = 0;
3048    theme_entry* curEntries = NULL;
3049
3050    const bag_entry* end = bag + N;
3051    while (bag < end) {
3052        const uint32_t attrRes = bag->map.name.ident;
3053        const uint32_t p = Res_GETPACKAGE(attrRes);
3054        const uint32_t t = Res_GETTYPE(attrRes);
3055        const uint32_t e = Res_GETENTRY(attrRes);
3056
3057        if (curPackage != p) {
3058            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
3059            if (pidx < 0) {
3060                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
3061                bag++;
3062                continue;
3063            }
3064            curPackage = p;
3065            curPackageIndex = pidx;
3066            curPI = mPackages[pidx];
3067            if (curPI == NULL) {
3068                PackageGroup* const grp = mTable.mPackageGroups[pidx];
3069                curPI = (package_info*)malloc(sizeof(package_info));
3070                memset(curPI, 0, sizeof(*curPI));
3071                mPackages[pidx] = curPI;
3072            }
3073            curType = 0xffffffff;
3074        }
3075        if (curType != t) {
3076            if (t > Res_MAXTYPE) {
3077                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
3078                bag++;
3079                continue;
3080            }
3081            curType = t;
3082            curEntries = curPI->types[t].entries;
3083            if (curEntries == NULL) {
3084                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
3085                const TypeList& typeList = grp->types[t];
3086                int cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount;
3087                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3088                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
3089                curPI->types[t].numEntries = cnt;
3090                curPI->types[t].entries = curEntries;
3091            }
3092            numEntries = curPI->types[t].numEntries;
3093        }
3094        if (e >= numEntries) {
3095            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
3096            bag++;
3097            continue;
3098        }
3099        theme_entry* curEntry = curEntries + e;
3100        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
3101                attrRes, bag->map.value.dataType, bag->map.value.data,
3102                curEntry->value.dataType));
3103        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
3104            curEntry->stringBlock = bag->stringBlock;
3105            curEntry->typeSpecFlags |= bagTypeSpecFlags;
3106            curEntry->value = bag->map.value;
3107        }
3108
3109        bag++;
3110    }
3111
3112    mTable.unlock();
3113
3114    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
3115    //dumpToLog();
3116
3117    return NO_ERROR;
3118}
3119
3120status_t ResTable::Theme::setTo(const Theme& other)
3121{
3122    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
3123    //dumpToLog();
3124    //other.dumpToLog();
3125
3126    if (&mTable == &other.mTable) {
3127        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3128            if (mPackages[i] != NULL) {
3129                free_package(mPackages[i]);
3130            }
3131            if (other.mPackages[i] != NULL) {
3132                mPackages[i] = copy_package(other.mPackages[i]);
3133            } else {
3134                mPackages[i] = NULL;
3135            }
3136        }
3137    } else {
3138        // @todo: need to really implement this, not just copy
3139        // the system package (which is still wrong because it isn't
3140        // fixing up resource references).
3141        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3142            if (mPackages[i] != NULL) {
3143                free_package(mPackages[i]);
3144            }
3145            if (i == 0 && other.mPackages[i] != NULL) {
3146                mPackages[i] = copy_package(other.mPackages[i]);
3147            } else {
3148                mPackages[i] = NULL;
3149            }
3150        }
3151    }
3152
3153    //ALOGI("Final theme:");
3154    //dumpToLog();
3155
3156    return NO_ERROR;
3157}
3158
3159ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
3160        uint32_t* outTypeSpecFlags) const
3161{
3162    int cnt = 20;
3163
3164    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
3165
3166    do {
3167        const ssize_t p = mTable.getResourcePackageIndex(resID);
3168        const uint32_t t = Res_GETTYPE(resID);
3169        const uint32_t e = Res_GETENTRY(resID);
3170
3171        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
3172
3173        if (p >= 0) {
3174            const package_info* const pi = mPackages[p];
3175            TABLE_THEME(ALOGI("Found package: %p", pi));
3176            if (pi != NULL) {
3177                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, Res_MAXTYPE + 1));
3178                if (t <= Res_MAXTYPE) {
3179                    const type_info& ti = pi->types[t];
3180                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
3181                    if (e < ti.numEntries) {
3182                        const theme_entry& te = ti.entries[e];
3183                        if (outTypeSpecFlags != NULL) {
3184                            *outTypeSpecFlags |= te.typeSpecFlags;
3185                        }
3186                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
3187                                te.value.dataType, te.value.data));
3188                        const uint8_t type = te.value.dataType;
3189                        if (type == Res_value::TYPE_ATTRIBUTE) {
3190                            if (cnt > 0) {
3191                                cnt--;
3192                                resID = te.value.data;
3193                                continue;
3194                            }
3195                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
3196                            return BAD_INDEX;
3197                        } else if (type != Res_value::TYPE_NULL) {
3198                            *outValue = te.value;
3199                            return te.stringBlock;
3200                        }
3201                        return BAD_INDEX;
3202                    }
3203                }
3204            }
3205        }
3206        break;
3207
3208    } while (true);
3209
3210    return BAD_INDEX;
3211}
3212
3213ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
3214        ssize_t blockIndex, uint32_t* outLastRef,
3215        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
3216{
3217    //printf("Resolving type=0x%x\n", inOutValue->dataType);
3218    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
3219        uint32_t newTypeSpecFlags;
3220        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
3221        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
3222             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
3223        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
3224        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
3225        if (blockIndex < 0) {
3226            return blockIndex;
3227        }
3228    }
3229    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
3230            inoutTypeSpecFlags, inoutConfig);
3231}
3232
3233void ResTable::Theme::dumpToLog() const
3234{
3235    ALOGI("Theme %p:\n", this);
3236    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3237        package_info* pi = mPackages[i];
3238        if (pi == NULL) continue;
3239
3240        ALOGI("  Package #0x%02x:\n", (int)(i + 1));
3241        for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3242            type_info& ti = pi->types[j];
3243            if (ti.numEntries == 0) continue;
3244            ALOGI("    Type #0x%02x:\n", (int)(j + 1));
3245            for (size_t k = 0; k < ti.numEntries; k++) {
3246                const theme_entry& te = ti.entries[k];
3247                if (te.value.dataType == Res_value::TYPE_NULL) continue;
3248                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
3249                     (int)Res_MAKEID(i, j, k),
3250                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
3251            }
3252        }
3253    }
3254}
3255
3256ResTable::ResTable()
3257    : mError(NO_INIT), mNextPackageId(2)
3258{
3259    memset(&mParams, 0, sizeof(mParams));
3260    memset(mPackageMap, 0, sizeof(mPackageMap));
3261    //ALOGI("Creating ResTable %p\n", this);
3262}
3263
3264ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData)
3265    : mError(NO_INIT), mNextPackageId(2)
3266{
3267    memset(&mParams, 0, sizeof(mParams));
3268    memset(mPackageMap, 0, sizeof(mPackageMap));
3269    addInternal(data, size, NULL, 0, cookie, copyData);
3270    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
3271    //ALOGI("Creating ResTable %p\n", this);
3272}
3273
3274ResTable::~ResTable()
3275{
3276    //ALOGI("Destroying ResTable in %p\n", this);
3277    uninit();
3278}
3279
3280inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
3281{
3282    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
3283}
3284
3285status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) {
3286    return addInternal(data, size, NULL, 0, cookie, copyData);
3287}
3288
3289status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize,
3290        const int32_t cookie, bool copyData) {
3291    return addInternal(data, size, idmapData, idmapDataSize, cookie, copyData);
3292}
3293
3294status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) {
3295    const void* data = asset->getBuffer(true);
3296    if (data == NULL) {
3297        ALOGW("Unable to get buffer of resource asset file");
3298        return UNKNOWN_ERROR;
3299    }
3300
3301    return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, 0, cookie, copyData);
3302}
3303
3304status_t ResTable::add(Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData) {
3305    const void* data = asset->getBuffer(true);
3306    if (data == NULL) {
3307        ALOGW("Unable to get buffer of resource asset file");
3308        return UNKNOWN_ERROR;
3309    }
3310
3311    size_t idmapSize = 0;
3312    const void* idmapData = NULL;
3313    if (idmapAsset != NULL) {
3314        idmapData = idmapAsset->getBuffer(true);
3315        if (idmapData == NULL) {
3316            ALOGW("Unable to get buffer of idmap asset file");
3317            return UNKNOWN_ERROR;
3318        }
3319        idmapSize = static_cast<size_t>(idmapAsset->getLength());
3320    }
3321
3322    return addInternal(data, static_cast<size_t>(asset->getLength()),
3323            idmapData, idmapSize, cookie, copyData);
3324}
3325
3326status_t ResTable::add(ResTable* src)
3327{
3328    mError = src->mError;
3329
3330    for (size_t i=0; i<src->mHeaders.size(); i++) {
3331        mHeaders.add(src->mHeaders[i]);
3332    }
3333
3334    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
3335        PackageGroup* srcPg = src->mPackageGroups[i];
3336        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
3337        for (size_t j=0; j<srcPg->packages.size(); j++) {
3338            pg->packages.add(srcPg->packages[j]);
3339        }
3340
3341        for (size_t j = 0; j < srcPg->types.size(); j++) {
3342            if (srcPg->types[j].isEmpty()) {
3343                continue;
3344            }
3345
3346            TypeList& typeList = pg->types.editItemAt(j);
3347            typeList.appendVector(srcPg->types[j]);
3348        }
3349        pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId);
3350        mPackageGroups.add(pg);
3351    }
3352
3353    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
3354
3355    return mError;
3356}
3357
3358status_t ResTable::addEmpty(const int32_t cookie) {
3359    Header* header = new Header(this);
3360    header->index = mHeaders.size();
3361    header->cookie = cookie;
3362    header->values.setToEmpty();
3363    header->ownedData = calloc(1, sizeof(ResTable_header));
3364
3365    ResTable_header* resHeader = (ResTable_header*) header->ownedData;
3366    resHeader->header.type = RES_TABLE_TYPE;
3367    resHeader->header.headerSize = sizeof(ResTable_header);
3368    resHeader->header.size = sizeof(ResTable_header);
3369
3370    header->header = (const ResTable_header*) resHeader;
3371    mHeaders.add(header);
3372    return (mError=NO_ERROR);
3373}
3374
3375status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize,
3376        const int32_t cookie, bool copyData)
3377{
3378    if (!data) {
3379        return NO_ERROR;
3380    }
3381
3382    if (dataSize < sizeof(ResTable_header)) {
3383        ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).",
3384                (int) dataSize, (int) sizeof(ResTable_header));
3385        return UNKNOWN_ERROR;
3386    }
3387
3388    Header* header = new Header(this);
3389    header->index = mHeaders.size();
3390    header->cookie = cookie;
3391    if (idmapData != NULL) {
3392        header->resourceIDMap = (uint32_t*) malloc(idmapDataSize);
3393        if (header->resourceIDMap == NULL) {
3394            delete header;
3395            return (mError = NO_MEMORY);
3396        }
3397        memcpy(header->resourceIDMap, idmapData, idmapDataSize);
3398        header->resourceIDMapSize = idmapDataSize;
3399    }
3400    mHeaders.add(header);
3401
3402    const bool notDeviceEndian = htods(0xf0) != 0xf0;
3403
3404    LOAD_TABLE_NOISY(
3405        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%d, copy=%d "
3406             "idmap=%p\n", data, dataSize, cookie, copyData, idmap));
3407
3408    if (copyData || notDeviceEndian) {
3409        header->ownedData = malloc(dataSize);
3410        if (header->ownedData == NULL) {
3411            return (mError=NO_MEMORY);
3412        }
3413        memcpy(header->ownedData, data, dataSize);
3414        data = header->ownedData;
3415    }
3416
3417    header->header = (const ResTable_header*)data;
3418    header->size = dtohl(header->header->header.size);
3419    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
3420    //     dtohl(header->header->header.size), header->header->header.size);
3421    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
3422    if (dtohs(header->header->header.headerSize) > header->size
3423            || header->size > dataSize) {
3424        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
3425             (int)dtohs(header->header->header.headerSize),
3426             (int)header->size, (int)dataSize);
3427        return (mError=BAD_TYPE);
3428    }
3429    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
3430        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
3431             (int)dtohs(header->header->header.headerSize),
3432             (int)header->size);
3433        return (mError=BAD_TYPE);
3434    }
3435    header->dataEnd = ((const uint8_t*)header->header) + header->size;
3436
3437    // Iterate through all chunks.
3438    size_t curPackage = 0;
3439
3440    const ResChunk_header* chunk =
3441        (const ResChunk_header*)(((const uint8_t*)header->header)
3442                                 + dtohs(header->header->header.headerSize));
3443    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
3444           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
3445        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
3446        if (err != NO_ERROR) {
3447            return (mError=err);
3448        }
3449        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
3450                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
3451                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3452        const size_t csize = dtohl(chunk->size);
3453        const uint16_t ctype = dtohs(chunk->type);
3454        if (ctype == RES_STRING_POOL_TYPE) {
3455            if (header->values.getError() != NO_ERROR) {
3456                // Only use the first string chunk; ignore any others that
3457                // may appear.
3458                status_t err = header->values.setTo(chunk, csize);
3459                if (err != NO_ERROR) {
3460                    return (mError=err);
3461                }
3462            } else {
3463                ALOGW("Multiple string chunks found in resource table.");
3464            }
3465        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3466            if (curPackage >= dtohl(header->header->packageCount)) {
3467                ALOGW("More package chunks were found than the %d declared in the header.",
3468                     dtohl(header->header->packageCount));
3469                return (mError=BAD_TYPE);
3470            }
3471
3472            if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) {
3473                return mError;
3474            }
3475            curPackage++;
3476        } else {
3477            ALOGW("Unknown chunk type 0x%x in table at %p.\n",
3478                 ctype,
3479                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3480        }
3481        chunk = (const ResChunk_header*)
3482            (((const uint8_t*)chunk) + csize);
3483    }
3484
3485    if (curPackage < dtohl(header->header->packageCount)) {
3486        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3487             (int)curPackage, dtohl(header->header->packageCount));
3488        return (mError=BAD_TYPE);
3489    }
3490    mError = header->values.getError();
3491    if (mError != NO_ERROR) {
3492        ALOGW("No string values found in resource table!");
3493    }
3494
3495    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3496    return mError;
3497}
3498
3499status_t ResTable::getError() const
3500{
3501    return mError;
3502}
3503
3504void ResTable::uninit()
3505{
3506    mError = NO_INIT;
3507    size_t N = mPackageGroups.size();
3508    for (size_t i=0; i<N; i++) {
3509        PackageGroup* g = mPackageGroups[i];
3510        delete g;
3511    }
3512    N = mHeaders.size();
3513    for (size_t i=0; i<N; i++) {
3514        Header* header = mHeaders[i];
3515        if (header->owner == this) {
3516            if (header->ownedData) {
3517                free(header->ownedData);
3518            }
3519            delete header;
3520        }
3521    }
3522
3523    mPackageGroups.clear();
3524    mHeaders.clear();
3525}
3526
3527bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3528{
3529    if (mError != NO_ERROR) {
3530        return false;
3531    }
3532
3533    const ssize_t p = getResourcePackageIndex(resID);
3534    const int t = Res_GETTYPE(resID);
3535    const int e = Res_GETENTRY(resID);
3536
3537    if (p < 0) {
3538        if (Res_GETPACKAGE(resID)+1 == 0) {
3539            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3540        } else {
3541            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3542        }
3543        return false;
3544    }
3545    if (t < 0) {
3546        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3547        return false;
3548    }
3549
3550    const PackageGroup* const grp = mPackageGroups[p];
3551    if (grp == NULL) {
3552        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3553        return false;
3554    }
3555
3556    Entry entry;
3557    status_t err = getEntry(grp, t, e, NULL, &entry);
3558    if (err != NO_ERROR) {
3559        return false;
3560    }
3561
3562    outName->package = grp->name.string();
3563    outName->packageLen = grp->name.size();
3564    if (allowUtf8) {
3565        outName->type8 = entry.typeStr.string8(&outName->typeLen);
3566        outName->name8 = entry.keyStr.string8(&outName->nameLen);
3567    } else {
3568        outName->type8 = NULL;
3569        outName->name8 = NULL;
3570    }
3571    if (outName->type8 == NULL) {
3572        outName->type = entry.typeStr.string16(&outName->typeLen);
3573        // If we have a bad index for some reason, we should abort.
3574        if (outName->type == NULL) {
3575            return false;
3576        }
3577    }
3578    if (outName->name8 == NULL) {
3579        outName->name = entry.keyStr.string16(&outName->nameLen);
3580        // If we have a bad index for some reason, we should abort.
3581        if (outName->name == NULL) {
3582            return false;
3583        }
3584    }
3585
3586    return true;
3587}
3588
3589ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3590        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3591{
3592    if (mError != NO_ERROR) {
3593        return mError;
3594    }
3595
3596    const ssize_t p = getResourcePackageIndex(resID);
3597    const int t = Res_GETTYPE(resID);
3598    const int e = Res_GETENTRY(resID);
3599
3600    if (p < 0) {
3601        if (Res_GETPACKAGE(resID)+1 == 0) {
3602            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3603        } else {
3604            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3605        }
3606        return BAD_INDEX;
3607    }
3608    if (t < 0) {
3609        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3610        return BAD_INDEX;
3611    }
3612
3613    const PackageGroup* const grp = mPackageGroups[p];
3614    if (grp == NULL) {
3615        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3616        return BAD_INDEX;
3617    }
3618
3619    // Allow overriding density
3620    ResTable_config desiredConfig = mParams;
3621    if (density > 0) {
3622        desiredConfig.density = density;
3623    }
3624
3625    Entry entry;
3626    status_t err = getEntry(grp, t, e, &desiredConfig, &entry);
3627    if (err != NO_ERROR) {
3628        ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n",
3629                resID, t, e, err);
3630        return err;
3631    }
3632
3633    if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) {
3634        if (!mayBeBag) {
3635            ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID);
3636        }
3637        return BAD_VALUE;
3638    }
3639
3640    const Res_value* value = reinterpret_cast<const Res_value*>(
3641            reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size);
3642
3643    outValue->size = dtohs(value->size);
3644    outValue->res0 = value->res0;
3645    outValue->dataType = value->dataType;
3646    outValue->data = dtohl(value->data);
3647
3648    // The reference may be pointing to a resource in a shared library. These
3649    // references have build-time generated package IDs. These ids may not match
3650    // the actual package IDs of the corresponding packages in this ResTable.
3651    // We need to fix the package ID based on a mapping.
3652    if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) {
3653        ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data);
3654        return BAD_VALUE;
3655    }
3656
3657    TABLE_NOISY(size_t len;
3658          printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3659                 entry.package->header->index,
3660                 outValue->dataType,
3661                 outValue->dataType == Res_value::TYPE_STRING
3662                 ? String8(entry.package->header->values.stringAt(
3663                     outValue->data, &len)).string()
3664                 : "",
3665                 outValue->data));
3666
3667    if (outSpecFlags != NULL) {
3668        *outSpecFlags = entry.specFlags;
3669    }
3670
3671    if (outConfig != NULL) {
3672        *outConfig = entry.config;
3673    }
3674
3675    return entry.package->header->index;
3676}
3677
3678ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3679        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3680        ResTable_config* outConfig) const
3681{
3682    int count=0;
3683    while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE
3684            && value->data != 0 && count < 20) {
3685        if (outLastRef) *outLastRef = value->data;
3686        uint32_t lastRef = value->data;
3687        uint32_t newFlags = 0;
3688        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3689                outConfig);
3690        if (newIndex == BAD_INDEX) {
3691            return BAD_INDEX;
3692        }
3693        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3694             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3695        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3696        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3697        if (newIndex < 0) {
3698            // This can fail if the resource being referenced is a style...
3699            // in this case, just return the reference, and expect the
3700            // caller to deal with.
3701            return blockIndex;
3702        }
3703        blockIndex = newIndex;
3704        count++;
3705    }
3706    return blockIndex;
3707}
3708
3709const char16_t* ResTable::valueToString(
3710    const Res_value* value, size_t stringBlock,
3711    char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen)
3712{
3713    if (!value) {
3714        return NULL;
3715    }
3716    if (value->dataType == value->TYPE_STRING) {
3717        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3718    }
3719    // XXX do int to string conversions.
3720    return NULL;
3721}
3722
3723ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3724{
3725    mLock.lock();
3726    ssize_t err = getBagLocked(resID, outBag);
3727    if (err < NO_ERROR) {
3728        //printf("*** get failed!  unlocking\n");
3729        mLock.unlock();
3730    }
3731    return err;
3732}
3733
3734void ResTable::unlockBag(const bag_entry* /*bag*/) const
3735{
3736    //printf("<<< unlockBag %p\n", this);
3737    mLock.unlock();
3738}
3739
3740void ResTable::lock() const
3741{
3742    mLock.lock();
3743}
3744
3745void ResTable::unlock() const
3746{
3747    mLock.unlock();
3748}
3749
3750ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3751        uint32_t* outTypeSpecFlags) const
3752{
3753    if (mError != NO_ERROR) {
3754        return mError;
3755    }
3756
3757    const ssize_t p = getResourcePackageIndex(resID);
3758    const int t = Res_GETTYPE(resID);
3759    const int e = Res_GETENTRY(resID);
3760
3761    if (p < 0) {
3762        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3763        return BAD_INDEX;
3764    }
3765    if (t < 0) {
3766        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3767        return BAD_INDEX;
3768    }
3769
3770    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3771    PackageGroup* const grp = mPackageGroups[p];
3772    if (grp == NULL) {
3773        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3774        return BAD_INDEX;
3775    }
3776
3777    const TypeList& typeConfigs = grp->types[t];
3778    if (typeConfigs.isEmpty()) {
3779        ALOGW("Type identifier 0x%x does not exist.", t+1);
3780        return BAD_INDEX;
3781    }
3782
3783    const size_t NENTRY = typeConfigs[0]->entryCount;
3784    if (e >= (int)NENTRY) {
3785        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3786             e, (int)typeConfigs[0]->entryCount);
3787        return BAD_INDEX;
3788    }
3789
3790    // First see if we've already computed this bag...
3791    if (grp->bags) {
3792        bag_set** typeSet = grp->bags->get(t);
3793        if (typeSet) {
3794            bag_set* set = typeSet[e];
3795            if (set) {
3796                if (set != (bag_set*)0xFFFFFFFF) {
3797                    if (outTypeSpecFlags != NULL) {
3798                        *outTypeSpecFlags = set->typeSpecFlags;
3799                    }
3800                    *outBag = (bag_entry*)(set+1);
3801                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3802                    return set->numAttrs;
3803                }
3804                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3805                     resID);
3806                return BAD_INDEX;
3807            }
3808        }
3809    }
3810
3811    // Bag not found, we need to compute it!
3812    if (!grp->bags) {
3813        grp->bags = new ByteBucketArray<bag_set**>();
3814        if (!grp->bags) return NO_MEMORY;
3815    }
3816
3817    bag_set** typeSet = grp->bags->get(t);
3818    if (!typeSet) {
3819        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3820        if (!typeSet) return NO_MEMORY;
3821        grp->bags->set(t, typeSet);
3822    }
3823
3824    // Mark that we are currently working on this one.
3825    typeSet[e] = (bag_set*)0xFFFFFFFF;
3826
3827    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3828
3829    // Now collect all bag attributes
3830    Entry entry;
3831    status_t err = getEntry(grp, t, e, &mParams, &entry);
3832    if (err != NO_ERROR) {
3833        return err;
3834    }
3835
3836    const uint16_t entrySize = dtohs(entry.entry->size);
3837    const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3838        ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0;
3839    const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3840        ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0;
3841
3842    size_t N = count;
3843
3844    TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3845                     entrySize, parent, count));
3846
3847    // If this map inherits from another, we need to start
3848    // with its parent's values.  Otherwise start out empty.
3849    TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3850                       entrySize, parent));
3851
3852    // This is what we are building.
3853    bag_set* set = NULL;
3854
3855    if (parent) {
3856        uint32_t resolvedParent = parent;
3857
3858        // Bags encode a parent reference without using the standard
3859        // Res_value structure. That means we must always try to
3860        // resolve a parent reference in case it is actually a
3861        // TYPE_DYNAMIC_REFERENCE.
3862        status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent);
3863        if (err != NO_ERROR) {
3864            ALOGE("Failed resolving bag parent id 0x%08x", parent);
3865            return UNKNOWN_ERROR;
3866        }
3867
3868        const bag_entry* parentBag;
3869        uint32_t parentTypeSpecFlags = 0;
3870        const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags);
3871        const size_t NT = ((NP >= 0) ? NP : 0) + N;
3872        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3873        if (set == NULL) {
3874            return NO_MEMORY;
3875        }
3876        if (NP > 0) {
3877            memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3878            set->numAttrs = NP;
3879            TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3880        } else {
3881            TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3882            set->numAttrs = 0;
3883        }
3884        set->availAttrs = NT;
3885        set->typeSpecFlags = parentTypeSpecFlags;
3886    } else {
3887        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3888        if (set == NULL) {
3889            return NO_MEMORY;
3890        }
3891        set->numAttrs = 0;
3892        set->availAttrs = N;
3893        set->typeSpecFlags = 0;
3894    }
3895
3896    set->typeSpecFlags |= entry.specFlags;
3897
3898    // Now merge in the new attributes...
3899    size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type))
3900        + dtohs(entry.entry->size);
3901    const ResTable_map* map;
3902    bag_entry* entries = (bag_entry*)(set+1);
3903    size_t curEntry = 0;
3904    uint32_t pos = 0;
3905    TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3906                 set, entries, set->availAttrs));
3907    while (pos < count) {
3908        TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3909
3910        if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) {
3911            ALOGW("ResTable_map at %d is beyond type chunk data %d",
3912                 (int)curOff, dtohl(entry.type->header.size));
3913            return BAD_TYPE;
3914        }
3915        map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff);
3916        N++;
3917
3918        uint32_t newName = htodl(map->name.ident);
3919        if (!Res_INTERNALID(newName)) {
3920            // Attributes don't have a resource id as the name. They specify
3921            // other data, which would be wrong to change via a lookup.
3922            if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) {
3923                ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x",
3924                        (int) curOff, (int) newName);
3925                return UNKNOWN_ERROR;
3926            }
3927        }
3928
3929        bool isInside;
3930        uint32_t oldName = 0;
3931        while ((isInside=(curEntry < set->numAttrs))
3932                && (oldName=entries[curEntry].map.name.ident) < newName) {
3933            TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3934                         curEntry, entries[curEntry].map.name.ident));
3935            curEntry++;
3936        }
3937
3938        if ((!isInside) || oldName != newName) {
3939            // This is a new attribute...  figure out what to do with it.
3940            if (set->numAttrs >= set->availAttrs) {
3941                // Need to alloc more memory...
3942                const size_t newAvail = set->availAttrs+N;
3943                set = (bag_set*)realloc(set,
3944                                        sizeof(bag_set)
3945                                        + sizeof(bag_entry)*newAvail);
3946                if (set == NULL) {
3947                    return NO_MEMORY;
3948                }
3949                set->availAttrs = newAvail;
3950                entries = (bag_entry*)(set+1);
3951                TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3952                             set, entries, set->availAttrs));
3953            }
3954            if (isInside) {
3955                // Going in the middle, need to make space.
3956                memmove(entries+curEntry+1, entries+curEntry,
3957                        sizeof(bag_entry)*(set->numAttrs-curEntry));
3958                set->numAttrs++;
3959            }
3960            TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3961                         curEntry, newName));
3962        } else {
3963            TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3964                         curEntry, oldName));
3965        }
3966
3967        bag_entry* cur = entries+curEntry;
3968
3969        cur->stringBlock = entry.package->header->index;
3970        cur->map.name.ident = newName;
3971        cur->map.value.copyFrom_dtoh(map->value);
3972        status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value);
3973        if (err != NO_ERROR) {
3974            ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data);
3975            return UNKNOWN_ERROR;
3976        }
3977
3978        TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3979                     curEntry, cur, cur->stringBlock, cur->map.name.ident,
3980                     cur->map.value.dataType, cur->map.value.data));
3981
3982        // On to the next!
3983        curEntry++;
3984        pos++;
3985        const size_t size = dtohs(map->value.size);
3986        curOff += size + sizeof(*map)-sizeof(map->value);
3987    };
3988
3989    if (curEntry > set->numAttrs) {
3990        set->numAttrs = curEntry;
3991    }
3992
3993    // And this is it...
3994    typeSet[e] = set;
3995    if (set) {
3996        if (outTypeSpecFlags != NULL) {
3997            *outTypeSpecFlags = set->typeSpecFlags;
3998        }
3999        *outBag = (bag_entry*)(set+1);
4000        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
4001        return set->numAttrs;
4002    }
4003    return BAD_INDEX;
4004}
4005
4006void ResTable::setParameters(const ResTable_config* params)
4007{
4008    mLock.lock();
4009    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
4010    mParams = *params;
4011    for (size_t i=0; i<mPackageGroups.size(); i++) {
4012        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
4013        mPackageGroups[i]->clearBagCache();
4014    }
4015    mLock.unlock();
4016}
4017
4018void ResTable::getParameters(ResTable_config* params) const
4019{
4020    mLock.lock();
4021    *params = mParams;
4022    mLock.unlock();
4023}
4024
4025struct id_name_map {
4026    uint32_t id;
4027    size_t len;
4028    char16_t name[6];
4029};
4030
4031const static id_name_map ID_NAMES[] = {
4032    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
4033    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
4034    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
4035    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
4036    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
4037    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
4038    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
4039    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
4040    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
4041    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
4042};
4043
4044uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
4045                                     const char16_t* type, size_t typeLen,
4046                                     const char16_t* package,
4047                                     size_t packageLen,
4048                                     uint32_t* outTypeSpecFlags) const
4049{
4050    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
4051
4052    // Check for internal resource identifier as the very first thing, so
4053    // that we will always find them even when there are no resources.
4054    if (name[0] == '^') {
4055        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
4056        size_t len;
4057        for (int i=0; i<N; i++) {
4058            const id_name_map* m = ID_NAMES + i;
4059            len = m->len;
4060            if (len != nameLen) {
4061                continue;
4062            }
4063            for (size_t j=1; j<len; j++) {
4064                if (m->name[j] != name[j]) {
4065                    goto nope;
4066                }
4067            }
4068            if (outTypeSpecFlags) {
4069                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4070            }
4071            return m->id;
4072nope:
4073            ;
4074        }
4075        if (nameLen > 7) {
4076            if (name[1] == 'i' && name[2] == 'n'
4077                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
4078                && name[6] == '_') {
4079                int index = atoi(String8(name + 7, nameLen - 7).string());
4080                if (Res_CHECKID(index)) {
4081                    ALOGW("Array resource index: %d is too large.",
4082                         index);
4083                    return 0;
4084                }
4085                if (outTypeSpecFlags) {
4086                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4087                }
4088                return  Res_MAKEARRAY(index);
4089            }
4090        }
4091        return 0;
4092    }
4093
4094    if (mError != NO_ERROR) {
4095        return 0;
4096    }
4097
4098    bool fakePublic = false;
4099
4100    // Figure out the package and type we are looking in...
4101
4102    const char16_t* packageEnd = NULL;
4103    const char16_t* typeEnd = NULL;
4104    const char16_t* const nameEnd = name+nameLen;
4105    const char16_t* p = name;
4106    while (p < nameEnd) {
4107        if (*p == ':') packageEnd = p;
4108        else if (*p == '/') typeEnd = p;
4109        p++;
4110    }
4111    if (*name == '@') {
4112        name++;
4113        if (*name == '*') {
4114            fakePublic = true;
4115            name++;
4116        }
4117    }
4118    if (name >= nameEnd) {
4119        return 0;
4120    }
4121
4122    if (packageEnd) {
4123        package = name;
4124        packageLen = packageEnd-name;
4125        name = packageEnd+1;
4126    } else if (!package) {
4127        return 0;
4128    }
4129
4130    if (typeEnd) {
4131        type = name;
4132        typeLen = typeEnd-name;
4133        name = typeEnd+1;
4134    } else if (!type) {
4135        return 0;
4136    }
4137
4138    if (name >= nameEnd) {
4139        return 0;
4140    }
4141    nameLen = nameEnd-name;
4142
4143    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
4144                 String8(type, typeLen).string(),
4145                 String8(name, nameLen).string(),
4146                 String8(package, packageLen).string()));
4147
4148    const size_t NG = mPackageGroups.size();
4149    for (size_t ig=0; ig<NG; ig++) {
4150        const PackageGroup* group = mPackageGroups[ig];
4151
4152        if (strzcmp16(package, packageLen,
4153                      group->name.string(), group->name.size())) {
4154            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
4155            continue;
4156        }
4157
4158        const ssize_t ti = group->findType16(type, typeLen);
4159        if (ti < 0) {
4160            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
4161            continue;
4162        }
4163
4164        const TypeList& typeList = group->types[ti];
4165        if (typeList.isEmpty()) {
4166            TABLE_NOISY(printf("Expected type structure not found in package %s for index %d\n",
4167                               String8(group->name).string(), ti));
4168            continue;
4169        }
4170
4171        const size_t typeCount = typeList.size();
4172        for (size_t i = 0; i < typeCount; i++) {
4173            const Type* t = typeList[i];
4174            const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen);
4175            if (ei < 0) {
4176                continue;
4177            }
4178
4179            const size_t configCount = t->configs.size();
4180            for (size_t j = 0; j < configCount; j++) {
4181                const TypeVariant tv(t->configs[j]);
4182                for (TypeVariant::iterator iter = tv.beginEntries();
4183                     iter != tv.endEntries();
4184                     iter++) {
4185                    const ResTable_entry* entry = *iter;
4186                    if (entry == NULL) {
4187                        continue;
4188                    }
4189
4190                    if (dtohl(entry->key.index) == (size_t) ei) {
4191                        uint32_t resId = Res_MAKEID(group->id - 1, ti, iter.index());
4192                        if (outTypeSpecFlags) {
4193                            Entry result;
4194                            if (getEntry(group, ti, iter.index(), NULL, &result) != NO_ERROR) {
4195                                ALOGW("Failed to find spec flags for %s:%s/%s (0x%08x)",
4196                                        String8(group->name).string(),
4197                                        String8(String16(type, typeLen)).string(),
4198                                        String8(String16(name, nameLen)).string(),
4199                                        resId);
4200                                return 0;
4201                            }
4202                            *outTypeSpecFlags = result.specFlags;
4203
4204                            if (fakePublic) {
4205                                *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
4206                            }
4207                        }
4208                        return resId;
4209                    }
4210                }
4211            }
4212        }
4213        break;
4214    }
4215    return 0;
4216}
4217
4218bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
4219                                 String16* outPackage,
4220                                 String16* outType,
4221                                 String16* outName,
4222                                 const String16* defType,
4223                                 const String16* defPackage,
4224                                 const char** outErrorMsg,
4225                                 bool* outPublicOnly)
4226{
4227    const char16_t* packageEnd = NULL;
4228    const char16_t* typeEnd = NULL;
4229    const char16_t* p = refStr;
4230    const char16_t* const end = p + refLen;
4231    while (p < end) {
4232        if (*p == ':') packageEnd = p;
4233        else if (*p == '/') {
4234            typeEnd = p;
4235            break;
4236        }
4237        p++;
4238    }
4239    p = refStr;
4240    if (*p == '@') p++;
4241
4242    if (outPublicOnly != NULL) {
4243        *outPublicOnly = true;
4244    }
4245    if (*p == '*') {
4246        p++;
4247        if (outPublicOnly != NULL) {
4248            *outPublicOnly = false;
4249        }
4250    }
4251
4252    if (packageEnd) {
4253        *outPackage = String16(p, packageEnd-p);
4254        p = packageEnd+1;
4255    } else {
4256        if (!defPackage) {
4257            if (outErrorMsg) {
4258                *outErrorMsg = "No resource package specified";
4259            }
4260            return false;
4261        }
4262        *outPackage = *defPackage;
4263    }
4264    if (typeEnd) {
4265        *outType = String16(p, typeEnd-p);
4266        p = typeEnd+1;
4267    } else {
4268        if (!defType) {
4269            if (outErrorMsg) {
4270                *outErrorMsg = "No resource type specified";
4271            }
4272            return false;
4273        }
4274        *outType = *defType;
4275    }
4276    *outName = String16(p, end-p);
4277    if(**outPackage == 0) {
4278        if(outErrorMsg) {
4279            *outErrorMsg = "Resource package cannot be an empty string";
4280        }
4281        return false;
4282    }
4283    if(**outType == 0) {
4284        if(outErrorMsg) {
4285            *outErrorMsg = "Resource type cannot be an empty string";
4286        }
4287        return false;
4288    }
4289    if(**outName == 0) {
4290        if(outErrorMsg) {
4291            *outErrorMsg = "Resource id cannot be an empty string";
4292        }
4293        return false;
4294    }
4295    return true;
4296}
4297
4298static uint32_t get_hex(char c, bool* outError)
4299{
4300    if (c >= '0' && c <= '9') {
4301        return c - '0';
4302    } else if (c >= 'a' && c <= 'f') {
4303        return c - 'a' + 0xa;
4304    } else if (c >= 'A' && c <= 'F') {
4305        return c - 'A' + 0xa;
4306    }
4307    *outError = true;
4308    return 0;
4309}
4310
4311struct unit_entry
4312{
4313    const char* name;
4314    size_t len;
4315    uint8_t type;
4316    uint32_t unit;
4317    float scale;
4318};
4319
4320static const unit_entry unitNames[] = {
4321    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4322    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4323    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4324    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4325    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4326    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4327    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4328    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4329    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4330    { NULL, 0, 0, 0, 0 }
4331};
4332
4333static bool parse_unit(const char* str, Res_value* outValue,
4334                       float* outScale, const char** outEnd)
4335{
4336    const char* end = str;
4337    while (*end != 0 && !isspace((unsigned char)*end)) {
4338        end++;
4339    }
4340    const size_t len = end-str;
4341
4342    const char* realEnd = end;
4343    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4344        realEnd++;
4345    }
4346    if (*realEnd != 0) {
4347        return false;
4348    }
4349
4350    const unit_entry* cur = unitNames;
4351    while (cur->name) {
4352        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4353            outValue->dataType = cur->type;
4354            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4355            *outScale = cur->scale;
4356            *outEnd = end;
4357            //printf("Found unit %s for %s\n", cur->name, str);
4358            return true;
4359        }
4360        cur++;
4361    }
4362
4363    return false;
4364}
4365
4366
4367bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4368{
4369    while (len > 0 && isspace16(*s)) {
4370        s++;
4371        len--;
4372    }
4373
4374    if (len <= 0) {
4375        return false;
4376    }
4377
4378    size_t i = 0;
4379    int32_t val = 0;
4380    bool neg = false;
4381
4382    if (*s == '-') {
4383        neg = true;
4384        i++;
4385    }
4386
4387    if (s[i] < '0' || s[i] > '9') {
4388        return false;
4389    }
4390
4391    // Decimal or hex?
4392    if (s[i] == '0' && s[i+1] == 'x') {
4393        if (outValue)
4394            outValue->dataType = outValue->TYPE_INT_HEX;
4395        i += 2;
4396        bool error = false;
4397        while (i < len && !error) {
4398            val = (val*16) + get_hex(s[i], &error);
4399            i++;
4400        }
4401        if (error) {
4402            return false;
4403        }
4404    } else {
4405        if (outValue)
4406            outValue->dataType = outValue->TYPE_INT_DEC;
4407        while (i < len) {
4408            if (s[i] < '0' || s[i] > '9') {
4409                return false;
4410            }
4411            val = (val*10) + s[i]-'0';
4412            i++;
4413        }
4414    }
4415
4416    if (neg) val = -val;
4417
4418    while (i < len && isspace16(s[i])) {
4419        i++;
4420    }
4421
4422    if (i == len) {
4423        if (outValue)
4424            outValue->data = val;
4425        return true;
4426    }
4427
4428    return false;
4429}
4430
4431bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4432{
4433    while (len > 0 && isspace16(*s)) {
4434        s++;
4435        len--;
4436    }
4437
4438    if (len <= 0) {
4439        return false;
4440    }
4441
4442    char buf[128];
4443    int i=0;
4444    while (len > 0 && *s != 0 && i < 126) {
4445        if (*s > 255) {
4446            return false;
4447        }
4448        buf[i++] = *s++;
4449        len--;
4450    }
4451
4452    if (len > 0) {
4453        return false;
4454    }
4455    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4456        return false;
4457    }
4458
4459    buf[i] = 0;
4460    const char* end;
4461    float f = strtof(buf, (char**)&end);
4462
4463    if (*end != 0 && !isspace((unsigned char)*end)) {
4464        // Might be a unit...
4465        float scale;
4466        if (parse_unit(end, outValue, &scale, &end)) {
4467            f *= scale;
4468            const bool neg = f < 0;
4469            if (neg) f = -f;
4470            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4471            uint32_t radix;
4472            uint32_t shift;
4473            if ((bits&0x7fffff) == 0) {
4474                // Always use 23p0 if there is no fraction, just to make
4475                // things easier to read.
4476                radix = Res_value::COMPLEX_RADIX_23p0;
4477                shift = 23;
4478            } else if ((bits&0xffffffffff800000LL) == 0) {
4479                // Magnitude is zero -- can fit in 0 bits of precision.
4480                radix = Res_value::COMPLEX_RADIX_0p23;
4481                shift = 0;
4482            } else if ((bits&0xffffffff80000000LL) == 0) {
4483                // Magnitude can fit in 8 bits of precision.
4484                radix = Res_value::COMPLEX_RADIX_8p15;
4485                shift = 8;
4486            } else if ((bits&0xffffff8000000000LL) == 0) {
4487                // Magnitude can fit in 16 bits of precision.
4488                radix = Res_value::COMPLEX_RADIX_16p7;
4489                shift = 16;
4490            } else {
4491                // Magnitude needs entire range, so no fractional part.
4492                radix = Res_value::COMPLEX_RADIX_23p0;
4493                shift = 23;
4494            }
4495            int32_t mantissa = (int32_t)(
4496                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4497            if (neg) {
4498                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4499            }
4500            outValue->data |=
4501                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4502                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4503            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4504            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4505            //       radix, shift, outValue->data);
4506            return true;
4507        }
4508        return false;
4509    }
4510
4511    while (*end != 0 && isspace((unsigned char)*end)) {
4512        end++;
4513    }
4514
4515    if (*end == 0) {
4516        if (outValue) {
4517            outValue->dataType = outValue->TYPE_FLOAT;
4518            *(float*)(&outValue->data) = f;
4519            return true;
4520        }
4521    }
4522
4523    return false;
4524}
4525
4526bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4527                             const char16_t* s, size_t len,
4528                             bool preserveSpaces, bool coerceType,
4529                             uint32_t attrID,
4530                             const String16* defType,
4531                             const String16* defPackage,
4532                             Accessor* accessor,
4533                             void* accessorCookie,
4534                             uint32_t attrType,
4535                             bool enforcePrivate) const
4536{
4537    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4538    const char* errorMsg = NULL;
4539
4540    outValue->size = sizeof(Res_value);
4541    outValue->res0 = 0;
4542
4543    // First strip leading/trailing whitespace.  Do this before handling
4544    // escapes, so they can be used to force whitespace into the string.
4545    if (!preserveSpaces) {
4546        while (len > 0 && isspace16(*s)) {
4547            s++;
4548            len--;
4549        }
4550        while (len > 0 && isspace16(s[len-1])) {
4551            len--;
4552        }
4553        // If the string ends with '\', then we keep the space after it.
4554        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4555            len++;
4556        }
4557    }
4558
4559    //printf("Value for: %s\n", String8(s, len).string());
4560
4561    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4562    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4563    bool fromAccessor = false;
4564    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4565        const ssize_t p = getResourcePackageIndex(attrID);
4566        const bag_entry* bag;
4567        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4568        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4569        if (cnt >= 0) {
4570            while (cnt > 0) {
4571                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4572                switch (bag->map.name.ident) {
4573                case ResTable_map::ATTR_TYPE:
4574                    attrType = bag->map.value.data;
4575                    break;
4576                case ResTable_map::ATTR_MIN:
4577                    attrMin = bag->map.value.data;
4578                    break;
4579                case ResTable_map::ATTR_MAX:
4580                    attrMax = bag->map.value.data;
4581                    break;
4582                case ResTable_map::ATTR_L10N:
4583                    l10nReq = bag->map.value.data;
4584                    break;
4585                }
4586                bag++;
4587                cnt--;
4588            }
4589            unlockBag(bag);
4590        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4591            fromAccessor = true;
4592            if (attrType == ResTable_map::TYPE_ENUM
4593                    || attrType == ResTable_map::TYPE_FLAGS
4594                    || attrType == ResTable_map::TYPE_INTEGER) {
4595                accessor->getAttributeMin(attrID, &attrMin);
4596                accessor->getAttributeMax(attrID, &attrMax);
4597            }
4598            if (localizationSetting) {
4599                l10nReq = accessor->getAttributeL10N(attrID);
4600            }
4601        }
4602    }
4603
4604    const bool canStringCoerce =
4605        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4606
4607    if (*s == '@') {
4608        outValue->dataType = outValue->TYPE_REFERENCE;
4609
4610        // Note: we don't check attrType here because the reference can
4611        // be to any other type; we just need to count on the client making
4612        // sure the referenced type is correct.
4613
4614        //printf("Looking up ref: %s\n", String8(s, len).string());
4615
4616        // It's a reference!
4617        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4618            outValue->data = 0;
4619            return true;
4620        } else {
4621            bool createIfNotFound = false;
4622            const char16_t* resourceRefName;
4623            int resourceNameLen;
4624            if (len > 2 && s[1] == '+') {
4625                createIfNotFound = true;
4626                resourceRefName = s + 2;
4627                resourceNameLen = len - 2;
4628            } else if (len > 2 && s[1] == '*') {
4629                enforcePrivate = false;
4630                resourceRefName = s + 2;
4631                resourceNameLen = len - 2;
4632            } else {
4633                createIfNotFound = false;
4634                resourceRefName = s + 1;
4635                resourceNameLen = len - 1;
4636            }
4637            String16 package, type, name;
4638            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4639                                   defType, defPackage, &errorMsg)) {
4640                if (accessor != NULL) {
4641                    accessor->reportError(accessorCookie, errorMsg);
4642                }
4643                return false;
4644            }
4645
4646            uint32_t specFlags = 0;
4647            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4648                    type.size(), package.string(), package.size(), &specFlags);
4649            if (rid != 0) {
4650                if (enforcePrivate) {
4651                    if (accessor == NULL || accessor->getAssetsPackage() != package) {
4652                        if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4653                            if (accessor != NULL) {
4654                                accessor->reportError(accessorCookie, "Resource is not public.");
4655                            }
4656                            return false;
4657                        }
4658                    }
4659                }
4660
4661                if (accessor) {
4662                    rid = Res_MAKEID(
4663                        accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4664                        Res_GETTYPE(rid), Res_GETENTRY(rid));
4665                    TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4666                           String8(package).string(), String8(type).string(),
4667                           String8(name).string(), rid));
4668                }
4669
4670                uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4671                if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
4672                    outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4673                }
4674                outValue->data = rid;
4675                return true;
4676            }
4677
4678            if (accessor) {
4679                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4680                                                                       createIfNotFound);
4681                if (rid != 0) {
4682                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4683                           String8(package).string(), String8(type).string(),
4684                           String8(name).string(), rid));
4685                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4686                    if (packageId == 0x00) {
4687                        outValue->data = rid;
4688                        outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4689                        return true;
4690                    } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
4691                        // We accept packageId's generated as 0x01 in order to support
4692                        // building the android system resources
4693                        outValue->data = rid;
4694                        return true;
4695                    }
4696                }
4697            }
4698        }
4699
4700        if (accessor != NULL) {
4701            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4702        }
4703        return false;
4704    }
4705
4706    // if we got to here, and localization is required and it's not a reference,
4707    // complain and bail.
4708    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4709        if (localizationSetting) {
4710            if (accessor != NULL) {
4711                accessor->reportError(accessorCookie, "This attribute must be localized.");
4712            }
4713        }
4714    }
4715
4716    if (*s == '#') {
4717        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4718        uint32_t color = 0;
4719        bool error = false;
4720        if (len == 4) {
4721            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4722            color |= 0xFF000000;
4723            color |= get_hex(s[1], &error) << 20;
4724            color |= get_hex(s[1], &error) << 16;
4725            color |= get_hex(s[2], &error) << 12;
4726            color |= get_hex(s[2], &error) << 8;
4727            color |= get_hex(s[3], &error) << 4;
4728            color |= get_hex(s[3], &error);
4729        } else if (len == 5) {
4730            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4731            color |= get_hex(s[1], &error) << 28;
4732            color |= get_hex(s[1], &error) << 24;
4733            color |= get_hex(s[2], &error) << 20;
4734            color |= get_hex(s[2], &error) << 16;
4735            color |= get_hex(s[3], &error) << 12;
4736            color |= get_hex(s[3], &error) << 8;
4737            color |= get_hex(s[4], &error) << 4;
4738            color |= get_hex(s[4], &error);
4739        } else if (len == 7) {
4740            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4741            color |= 0xFF000000;
4742            color |= get_hex(s[1], &error) << 20;
4743            color |= get_hex(s[2], &error) << 16;
4744            color |= get_hex(s[3], &error) << 12;
4745            color |= get_hex(s[4], &error) << 8;
4746            color |= get_hex(s[5], &error) << 4;
4747            color |= get_hex(s[6], &error);
4748        } else if (len == 9) {
4749            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4750            color |= get_hex(s[1], &error) << 28;
4751            color |= get_hex(s[2], &error) << 24;
4752            color |= get_hex(s[3], &error) << 20;
4753            color |= get_hex(s[4], &error) << 16;
4754            color |= get_hex(s[5], &error) << 12;
4755            color |= get_hex(s[6], &error) << 8;
4756            color |= get_hex(s[7], &error) << 4;
4757            color |= get_hex(s[8], &error);
4758        } else {
4759            error = true;
4760        }
4761        if (!error) {
4762            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4763                if (!canStringCoerce) {
4764                    if (accessor != NULL) {
4765                        accessor->reportError(accessorCookie,
4766                                "Color types not allowed");
4767                    }
4768                    return false;
4769                }
4770            } else {
4771                outValue->data = color;
4772                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4773                return true;
4774            }
4775        } else {
4776            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4777                if (accessor != NULL) {
4778                    accessor->reportError(accessorCookie, "Color value not valid --"
4779                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4780                }
4781                #if 0
4782                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4783                        "Resource File", //(const char*)in->getPrintableSource(),
4784                        String8(*curTag).string(),
4785                        String8(s, len).string());
4786                #endif
4787                return false;
4788            }
4789        }
4790    }
4791
4792    if (*s == '?') {
4793        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4794
4795        // Note: we don't check attrType here because the reference can
4796        // be to any other type; we just need to count on the client making
4797        // sure the referenced type is correct.
4798
4799        //printf("Looking up attr: %s\n", String8(s, len).string());
4800
4801        static const String16 attr16("attr");
4802        String16 package, type, name;
4803        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4804                               &attr16, defPackage, &errorMsg)) {
4805            if (accessor != NULL) {
4806                accessor->reportError(accessorCookie, errorMsg);
4807            }
4808            return false;
4809        }
4810
4811        //printf("Pkg: %s, Type: %s, Name: %s\n",
4812        //       String8(package).string(), String8(type).string(),
4813        //       String8(name).string());
4814        uint32_t specFlags = 0;
4815        uint32_t rid =
4816            identifierForName(name.string(), name.size(),
4817                              type.string(), type.size(),
4818                              package.string(), package.size(), &specFlags);
4819        if (rid != 0) {
4820            if (enforcePrivate) {
4821                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4822                    if (accessor != NULL) {
4823                        accessor->reportError(accessorCookie, "Attribute is not public.");
4824                    }
4825                    return false;
4826                }
4827            }
4828            if (!accessor) {
4829                outValue->data = rid;
4830                return true;
4831            }
4832            rid = Res_MAKEID(
4833                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4834                Res_GETTYPE(rid), Res_GETENTRY(rid));
4835            //printf("Incl %s:%s/%s: 0x%08x\n",
4836            //       String8(package).string(), String8(type).string(),
4837            //       String8(name).string(), rid);
4838            outValue->data = rid;
4839            return true;
4840        }
4841
4842        if (accessor) {
4843            uint32_t rid = accessor->getCustomResource(package, type, name);
4844            if (rid != 0) {
4845                //printf("Mine %s:%s/%s: 0x%08x\n",
4846                //       String8(package).string(), String8(type).string(),
4847                //       String8(name).string(), rid);
4848                outValue->data = rid;
4849                return true;
4850            }
4851        }
4852
4853        if (accessor != NULL) {
4854            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4855        }
4856        return false;
4857    }
4858
4859    if (stringToInt(s, len, outValue)) {
4860        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4861            // If this type does not allow integers, but does allow floats,
4862            // fall through on this error case because the float type should
4863            // be able to accept any integer value.
4864            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4865                if (accessor != NULL) {
4866                    accessor->reportError(accessorCookie, "Integer types not allowed");
4867                }
4868                return false;
4869            }
4870        } else {
4871            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4872                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4873                if (accessor != NULL) {
4874                    accessor->reportError(accessorCookie, "Integer value out of range");
4875                }
4876                return false;
4877            }
4878            return true;
4879        }
4880    }
4881
4882    if (stringToFloat(s, len, outValue)) {
4883        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4884            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4885                return true;
4886            }
4887            if (!canStringCoerce) {
4888                if (accessor != NULL) {
4889                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4890                }
4891                return false;
4892            }
4893        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4894            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4895                return true;
4896            }
4897            if (!canStringCoerce) {
4898                if (accessor != NULL) {
4899                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4900                }
4901                return false;
4902            }
4903        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4904            if (!canStringCoerce) {
4905                if (accessor != NULL) {
4906                    accessor->reportError(accessorCookie, "Float types not allowed");
4907                }
4908                return false;
4909            }
4910        } else {
4911            return true;
4912        }
4913    }
4914
4915    if (len == 4) {
4916        if ((s[0] == 't' || s[0] == 'T') &&
4917            (s[1] == 'r' || s[1] == 'R') &&
4918            (s[2] == 'u' || s[2] == 'U') &&
4919            (s[3] == 'e' || s[3] == 'E')) {
4920            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4921                if (!canStringCoerce) {
4922                    if (accessor != NULL) {
4923                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4924                    }
4925                    return false;
4926                }
4927            } else {
4928                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4929                outValue->data = (uint32_t)-1;
4930                return true;
4931            }
4932        }
4933    }
4934
4935    if (len == 5) {
4936        if ((s[0] == 'f' || s[0] == 'F') &&
4937            (s[1] == 'a' || s[1] == 'A') &&
4938            (s[2] == 'l' || s[2] == 'L') &&
4939            (s[3] == 's' || s[3] == 'S') &&
4940            (s[4] == 'e' || s[4] == 'E')) {
4941            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4942                if (!canStringCoerce) {
4943                    if (accessor != NULL) {
4944                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4945                    }
4946                    return false;
4947                }
4948            } else {
4949                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4950                outValue->data = 0;
4951                return true;
4952            }
4953        }
4954    }
4955
4956    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4957        const ssize_t p = getResourcePackageIndex(attrID);
4958        const bag_entry* bag;
4959        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4960        //printf("Got %d for enum\n", cnt);
4961        if (cnt >= 0) {
4962            resource_name rname;
4963            while (cnt > 0) {
4964                if (!Res_INTERNALID(bag->map.name.ident)) {
4965                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4966                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4967                        #if 0
4968                        printf("Matching %s against %s (0x%08x)\n",
4969                               String8(s, len).string(),
4970                               String8(rname.name, rname.nameLen).string(),
4971                               bag->map.name.ident);
4972                        #endif
4973                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4974                            outValue->dataType = bag->map.value.dataType;
4975                            outValue->data = bag->map.value.data;
4976                            unlockBag(bag);
4977                            return true;
4978                        }
4979                    }
4980
4981                }
4982                bag++;
4983                cnt--;
4984            }
4985            unlockBag(bag);
4986        }
4987
4988        if (fromAccessor) {
4989            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4990                return true;
4991            }
4992        }
4993    }
4994
4995    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4996        const ssize_t p = getResourcePackageIndex(attrID);
4997        const bag_entry* bag;
4998        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4999        //printf("Got %d for flags\n", cnt);
5000        if (cnt >= 0) {
5001            bool failed = false;
5002            resource_name rname;
5003            outValue->dataType = Res_value::TYPE_INT_HEX;
5004            outValue->data = 0;
5005            const char16_t* end = s + len;
5006            const char16_t* pos = s;
5007            while (pos < end && !failed) {
5008                const char16_t* start = pos;
5009                pos++;
5010                while (pos < end && *pos != '|') {
5011                    pos++;
5012                }
5013                //printf("Looking for: %s\n", String8(start, pos-start).string());
5014                const bag_entry* bagi = bag;
5015                ssize_t i;
5016                for (i=0; i<cnt; i++, bagi++) {
5017                    if (!Res_INTERNALID(bagi->map.name.ident)) {
5018                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
5019                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
5020                            #if 0
5021                            printf("Matching %s against %s (0x%08x)\n",
5022                                   String8(start,pos-start).string(),
5023                                   String8(rname.name, rname.nameLen).string(),
5024                                   bagi->map.name.ident);
5025                            #endif
5026                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
5027                                outValue->data |= bagi->map.value.data;
5028                                break;
5029                            }
5030                        }
5031                    }
5032                }
5033                if (i >= cnt) {
5034                    // Didn't find this flag identifier.
5035                    failed = true;
5036                }
5037                if (pos < end) {
5038                    pos++;
5039                }
5040            }
5041            unlockBag(bag);
5042            if (!failed) {
5043                //printf("Final flag value: 0x%lx\n", outValue->data);
5044                return true;
5045            }
5046        }
5047
5048
5049        if (fromAccessor) {
5050            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
5051                //printf("Final flag value: 0x%lx\n", outValue->data);
5052                return true;
5053            }
5054        }
5055    }
5056
5057    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
5058        if (accessor != NULL) {
5059            accessor->reportError(accessorCookie, "String types not allowed");
5060        }
5061        return false;
5062    }
5063
5064    // Generic string handling...
5065    outValue->dataType = outValue->TYPE_STRING;
5066    if (outString) {
5067        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
5068        if (accessor != NULL) {
5069            accessor->reportError(accessorCookie, errorMsg);
5070        }
5071        return failed;
5072    }
5073
5074    return true;
5075}
5076
5077bool ResTable::collectString(String16* outString,
5078                             const char16_t* s, size_t len,
5079                             bool preserveSpaces,
5080                             const char** outErrorMsg,
5081                             bool append)
5082{
5083    String16 tmp;
5084
5085    char quoted = 0;
5086    const char16_t* p = s;
5087    while (p < (s+len)) {
5088        while (p < (s+len)) {
5089            const char16_t c = *p;
5090            if (c == '\\') {
5091                break;
5092            }
5093            if (!preserveSpaces) {
5094                if (quoted == 0 && isspace16(c)
5095                    && (c != ' ' || isspace16(*(p+1)))) {
5096                    break;
5097                }
5098                if (c == '"' && (quoted == 0 || quoted == '"')) {
5099                    break;
5100                }
5101                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
5102                    /*
5103                     * In practice, when people write ' instead of \'
5104                     * in a string, they are doing it by accident
5105                     * instead of really meaning to use ' as a quoting
5106                     * character.  Warn them so they don't lose it.
5107                     */
5108                    if (outErrorMsg) {
5109                        *outErrorMsg = "Apostrophe not preceded by \\";
5110                    }
5111                    return false;
5112                }
5113            }
5114            p++;
5115        }
5116        if (p < (s+len)) {
5117            if (p > s) {
5118                tmp.append(String16(s, p-s));
5119            }
5120            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
5121                if (quoted == 0) {
5122                    quoted = *p;
5123                } else {
5124                    quoted = 0;
5125                }
5126                p++;
5127            } else if (!preserveSpaces && isspace16(*p)) {
5128                // Space outside of a quote -- consume all spaces and
5129                // leave a single plain space char.
5130                tmp.append(String16(" "));
5131                p++;
5132                while (p < (s+len) && isspace16(*p)) {
5133                    p++;
5134                }
5135            } else if (*p == '\\') {
5136                p++;
5137                if (p < (s+len)) {
5138                    switch (*p) {
5139                    case 't':
5140                        tmp.append(String16("\t"));
5141                        break;
5142                    case 'n':
5143                        tmp.append(String16("\n"));
5144                        break;
5145                    case '#':
5146                        tmp.append(String16("#"));
5147                        break;
5148                    case '@':
5149                        tmp.append(String16("@"));
5150                        break;
5151                    case '?':
5152                        tmp.append(String16("?"));
5153                        break;
5154                    case '"':
5155                        tmp.append(String16("\""));
5156                        break;
5157                    case '\'':
5158                        tmp.append(String16("'"));
5159                        break;
5160                    case '\\':
5161                        tmp.append(String16("\\"));
5162                        break;
5163                    case 'u':
5164                    {
5165                        char16_t chr = 0;
5166                        int i = 0;
5167                        while (i < 4 && p[1] != 0) {
5168                            p++;
5169                            i++;
5170                            int c;
5171                            if (*p >= '0' && *p <= '9') {
5172                                c = *p - '0';
5173                            } else if (*p >= 'a' && *p <= 'f') {
5174                                c = *p - 'a' + 10;
5175                            } else if (*p >= 'A' && *p <= 'F') {
5176                                c = *p - 'A' + 10;
5177                            } else {
5178                                if (outErrorMsg) {
5179                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
5180                                }
5181                                return false;
5182                            }
5183                            chr = (chr<<4) | c;
5184                        }
5185                        tmp.append(String16(&chr, 1));
5186                    } break;
5187                    default:
5188                        // ignore unknown escape chars.
5189                        break;
5190                    }
5191                    p++;
5192                }
5193            }
5194            len -= (p-s);
5195            s = p;
5196        }
5197    }
5198
5199    if (tmp.size() != 0) {
5200        if (len > 0) {
5201            tmp.append(String16(s, len));
5202        }
5203        if (append) {
5204            outString->append(tmp);
5205        } else {
5206            outString->setTo(tmp);
5207        }
5208    } else {
5209        if (append) {
5210            outString->append(String16(s, len));
5211        } else {
5212            outString->setTo(s, len);
5213        }
5214    }
5215
5216    return true;
5217}
5218
5219size_t ResTable::getBasePackageCount() const
5220{
5221    if (mError != NO_ERROR) {
5222        return 0;
5223    }
5224    return mPackageGroups.size();
5225}
5226
5227const String16 ResTable::getBasePackageName(size_t idx) const
5228{
5229    if (mError != NO_ERROR) {
5230        return String16();
5231    }
5232    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5233                 "Requested package index %d past package count %d",
5234                 (int)idx, (int)mPackageGroups.size());
5235    return mPackageGroups[idx]->name;
5236}
5237
5238uint32_t ResTable::getBasePackageId(size_t idx) const
5239{
5240    if (mError != NO_ERROR) {
5241        return 0;
5242    }
5243    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5244                 "Requested package index %d past package count %d",
5245                 (int)idx, (int)mPackageGroups.size());
5246    return mPackageGroups[idx]->id;
5247}
5248
5249uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const
5250{
5251    if (mError != NO_ERROR) {
5252        return 0;
5253    }
5254    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5255            "Requested package index %d past package count %d",
5256            (int)idx, (int)mPackageGroups.size());
5257    const PackageGroup* const group = mPackageGroups[idx];
5258    return group->largestTypeId;
5259}
5260
5261size_t ResTable::getTableCount() const
5262{
5263    return mHeaders.size();
5264}
5265
5266const ResStringPool* ResTable::getTableStringBlock(size_t index) const
5267{
5268    return &mHeaders[index]->values;
5269}
5270
5271int32_t ResTable::getTableCookie(size_t index) const
5272{
5273    return mHeaders[index]->cookie;
5274}
5275
5276const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const
5277{
5278    const size_t N = mPackageGroups.size();
5279    for (size_t i = 0; i < N; i++) {
5280        const PackageGroup* pg = mPackageGroups[i];
5281        size_t M = pg->packages.size();
5282        for (size_t j = 0; j < M; j++) {
5283            if (pg->packages[j]->header->cookie == cookie) {
5284                return &pg->dynamicRefTable;
5285            }
5286        }
5287    }
5288    return NULL;
5289}
5290
5291void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
5292{
5293    const size_t packageCount = mPackageGroups.size();
5294    for (size_t i = 0; i < packageCount; i++) {
5295        const PackageGroup* packageGroup = mPackageGroups[i];
5296        const size_t typeCount = packageGroup->types.size();
5297        for (size_t j = 0; j < typeCount; j++) {
5298            const TypeList& typeList = packageGroup->types[j];
5299            const size_t numTypes = typeList.size();
5300            for (size_t k = 0; k < numTypes; k++) {
5301                const Type* type = typeList[k];
5302                const size_t numConfigs = type->configs.size();
5303                for (size_t m = 0; m < numConfigs; m++) {
5304                    const ResTable_type* config = type->configs[m];
5305                    ResTable_config cfg;
5306                    memset(&cfg, 0, sizeof(ResTable_config));
5307                    cfg.copyFromDtoH(config->config);
5308                    // only insert unique
5309                    const size_t N = configs->size();
5310                    size_t n;
5311                    for (n = 0; n < N; n++) {
5312                        if (0 == (*configs)[n].compare(cfg)) {
5313                            break;
5314                        }
5315                    }
5316                    // if we didn't find it
5317                    if (n == N) {
5318                        configs->add(cfg);
5319                    }
5320                }
5321            }
5322        }
5323    }
5324}
5325
5326void ResTable::getLocales(Vector<String8>* locales) const
5327{
5328    Vector<ResTable_config> configs;
5329    ALOGV("calling getConfigurations");
5330    getConfigurations(&configs);
5331    ALOGV("called getConfigurations size=%d", (int)configs.size());
5332    const size_t I = configs.size();
5333
5334    char locale[RESTABLE_MAX_LOCALE_LEN];
5335    for (size_t i=0; i<I; i++) {
5336        configs[i].getBcp47Locale(locale);
5337        const size_t J = locales->size();
5338        size_t j;
5339        for (j=0; j<J; j++) {
5340            if (0 == strcmp(locale, (*locales)[j].string())) {
5341                break;
5342            }
5343        }
5344        if (j == J) {
5345            locales->add(String8(locale));
5346        }
5347    }
5348}
5349
5350StringPoolRef::StringPoolRef(const ResStringPool* pool, uint32_t index)
5351    : mPool(pool), mIndex(index) {}
5352
5353StringPoolRef::StringPoolRef()
5354    : mPool(NULL), mIndex(0) {}
5355
5356const char* StringPoolRef::string8(size_t* outLen) const {
5357    if (mPool != NULL) {
5358        return mPool->string8At(mIndex, outLen);
5359    }
5360    if (outLen != NULL) {
5361        *outLen = 0;
5362    }
5363    return NULL;
5364}
5365
5366const char16_t* StringPoolRef::string16(size_t* outLen) const {
5367    if (mPool != NULL) {
5368        return mPool->stringAt(mIndex, outLen);
5369    }
5370    if (outLen != NULL) {
5371        *outLen = 0;
5372    }
5373    return NULL;
5374}
5375
5376status_t ResTable::getEntry(
5377        const PackageGroup* packageGroup, int typeIndex, int entryIndex,
5378        const ResTable_config* config,
5379        Entry* outEntry) const
5380{
5381    const TypeList& typeList = packageGroup->types[typeIndex];
5382    if (typeList.isEmpty()) {
5383        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5384        return BAD_TYPE;
5385    }
5386
5387    const ResTable_type* bestType = NULL;
5388    uint32_t bestOffset = ResTable_type::NO_ENTRY;
5389    const Package* bestPackage = NULL;
5390    uint32_t specFlags = 0;
5391    uint8_t actualTypeIndex = typeIndex;
5392    ResTable_config bestConfig;
5393    memset(&bestConfig, 0, sizeof(bestConfig));
5394
5395    // Iterate over the Types of each package.
5396    const size_t typeCount = typeList.size();
5397    for (size_t i = 0; i < typeCount; i++) {
5398        const Type* const typeSpec = typeList[i];
5399
5400        int realEntryIndex = entryIndex;
5401        int realTypeIndex = typeIndex;
5402        bool currentTypeIsOverlay = false;
5403
5404        // Runtime overlay packages provide a mapping of app resource
5405        // ID to package resource ID.
5406        if (typeSpec->idmapEntries.hasEntries()) {
5407            uint16_t overlayEntryIndex;
5408            if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) {
5409                // No such mapping exists
5410                continue;
5411            }
5412            realEntryIndex = overlayEntryIndex;
5413            realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1;
5414            currentTypeIsOverlay = true;
5415        }
5416
5417        if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) {
5418            ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)",
5419                    Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex),
5420                    entryIndex, static_cast<int>(typeSpec->entryCount));
5421            // We should normally abort here, but some legacy apps declare
5422            // resources in the 'android' package (old bug in AAPT).
5423            continue;
5424        }
5425
5426        // Aggregate all the flags for each package that defines this entry.
5427        if (typeSpec->typeSpecFlags != NULL) {
5428            specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]);
5429        } else {
5430            specFlags = -1;
5431        }
5432
5433        const size_t numConfigs = typeSpec->configs.size();
5434        for (size_t c = 0; c < numConfigs; c++) {
5435            const ResTable_type* const thisType = typeSpec->configs[c];
5436            if (thisType == NULL) {
5437                continue;
5438            }
5439
5440            ResTable_config thisConfig;
5441            thisConfig.copyFromDtoH(thisType->config);
5442
5443            // Check to make sure this one is valid for the current parameters.
5444            if (config != NULL && !thisConfig.match(*config)) {
5445                continue;
5446            }
5447
5448            // Check if there is the desired entry in this type.
5449            const uint8_t* const end = reinterpret_cast<const uint8_t*>(thisType)
5450                    + dtohl(thisType->header.size);
5451            const uint32_t* const eindex = reinterpret_cast<const uint32_t*>(
5452                    reinterpret_cast<const uint8_t*>(thisType) + dtohs(thisType->header.headerSize));
5453
5454            uint32_t thisOffset = dtohl(eindex[realEntryIndex]);
5455            if (thisOffset == ResTable_type::NO_ENTRY) {
5456                // There is no entry for this index and configuration.
5457                continue;
5458            }
5459
5460            if (bestType != NULL) {
5461                // Check if this one is less specific than the last found.  If so,
5462                // we will skip it.  We check starting with things we most care
5463                // about to those we least care about.
5464                if (!thisConfig.isBetterThan(bestConfig, config)) {
5465                    if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) {
5466                        continue;
5467                    }
5468                }
5469            }
5470
5471            bestType = thisType;
5472            bestOffset = thisOffset;
5473            bestConfig = thisConfig;
5474            bestPackage = typeSpec->package;
5475            actualTypeIndex = realTypeIndex;
5476
5477            // If no config was specified, any type will do, so skip
5478            if (config == NULL) {
5479                break;
5480            }
5481        }
5482    }
5483
5484    if (bestType == NULL) {
5485        return BAD_INDEX;
5486    }
5487
5488    bestOffset += dtohl(bestType->entriesStart);
5489
5490    if (bestOffset > (dtohl(bestType->header.size)-sizeof(ResTable_entry))) {
5491        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5492                bestOffset, dtohl(bestType->header.size));
5493        return BAD_TYPE;
5494    }
5495    if ((bestOffset & 0x3) != 0) {
5496        ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset);
5497        return BAD_TYPE;
5498    }
5499
5500    const ResTable_entry* const entry = reinterpret_cast<const ResTable_entry*>(
5501            reinterpret_cast<const uint8_t*>(bestType) + bestOffset);
5502    if (dtohs(entry->size) < sizeof(*entry)) {
5503        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5504        return BAD_TYPE;
5505    }
5506
5507    if (outEntry != NULL) {
5508        outEntry->entry = entry;
5509        outEntry->config = bestConfig;
5510        outEntry->type = bestType;
5511        outEntry->specFlags = specFlags;
5512        outEntry->package = bestPackage;
5513        outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings, actualTypeIndex - bestPackage->typeIdOffset);
5514        outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index));
5515    }
5516    return NO_ERROR;
5517}
5518
5519status_t ResTable::parsePackage(const ResTable_package* const pkg,
5520                                const Header* const header)
5521{
5522    const uint8_t* base = (const uint8_t*)pkg;
5523    status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset),
5524                                  header->dataEnd, "ResTable_package");
5525    if (err != NO_ERROR) {
5526        return (mError=err);
5527    }
5528
5529    const uint32_t pkgSize = dtohl(pkg->header.size);
5530
5531    if (dtohl(pkg->typeStrings) >= pkgSize) {
5532        ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.",
5533             dtohl(pkg->typeStrings), pkgSize);
5534        return (mError=BAD_TYPE);
5535    }
5536    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5537        ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.",
5538             dtohl(pkg->typeStrings));
5539        return (mError=BAD_TYPE);
5540    }
5541    if (dtohl(pkg->keyStrings) >= pkgSize) {
5542        ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.",
5543             dtohl(pkg->keyStrings), pkgSize);
5544        return (mError=BAD_TYPE);
5545    }
5546    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5547        ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.",
5548             dtohl(pkg->keyStrings));
5549        return (mError=BAD_TYPE);
5550    }
5551
5552    uint32_t id = dtohl(pkg->id);
5553    KeyedVector<uint8_t, IdmapEntries> idmapEntries;
5554
5555    if (header->resourceIDMap != NULL) {
5556        uint8_t targetPackageId = 0;
5557        status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize, &targetPackageId, &idmapEntries);
5558        if (err != NO_ERROR) {
5559            ALOGW("Overlay is broken");
5560            return (mError=err);
5561        }
5562        id = targetPackageId;
5563    }
5564
5565    if (id >= 256) {
5566        LOG_ALWAYS_FATAL("Package id out of range");
5567        return NO_ERROR;
5568    } else if (id == 0) {
5569        // This is a library so assign an ID
5570        id = mNextPackageId++;
5571    }
5572
5573    PackageGroup* group = NULL;
5574    Package* package = new Package(this, header, pkg);
5575    if (package == NULL) {
5576        return (mError=NO_MEMORY);
5577    }
5578
5579    err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5580                                   header->dataEnd-(base+dtohl(pkg->typeStrings)));
5581    if (err != NO_ERROR) {
5582        delete group;
5583        delete package;
5584        return (mError=err);
5585    }
5586
5587    err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5588                                  header->dataEnd-(base+dtohl(pkg->keyStrings)));
5589    if (err != NO_ERROR) {
5590        delete group;
5591        delete package;
5592        return (mError=err);
5593    }
5594
5595    size_t idx = mPackageMap[id];
5596    if (idx == 0) {
5597        idx = mPackageGroups.size() + 1;
5598
5599        char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5600        strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5601        group = new PackageGroup(this, String16(tmpName), id);
5602        if (group == NULL) {
5603            delete package;
5604            return (mError=NO_MEMORY);
5605        }
5606
5607        //printf("Adding new package id %d at index %d\n", id, idx);
5608        err = mPackageGroups.add(group);
5609        if (err < NO_ERROR) {
5610            return (mError=err);
5611        }
5612
5613        mPackageMap[id] = static_cast<uint8_t>(idx);
5614
5615        // Find all packages that reference this package
5616        size_t N = mPackageGroups.size();
5617        for (size_t i = 0; i < N; i++) {
5618            mPackageGroups[i]->dynamicRefTable.addMapping(
5619                    group->name, static_cast<uint8_t>(group->id));
5620        }
5621    } else {
5622        group = mPackageGroups.itemAt(idx - 1);
5623        if (group == NULL) {
5624            return (mError=UNKNOWN_ERROR);
5625        }
5626    }
5627
5628    err = group->packages.add(package);
5629    if (err < NO_ERROR) {
5630        return (mError=err);
5631    }
5632
5633    // Iterate through all chunks.
5634    const ResChunk_header* chunk =
5635        (const ResChunk_header*)(((const uint8_t*)pkg)
5636                                 + dtohs(pkg->header.headerSize));
5637    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5638    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5639           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5640        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5641                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5642                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5643        const size_t csize = dtohl(chunk->size);
5644        const uint16_t ctype = dtohs(chunk->type);
5645        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5646            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5647            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5648                                 endPos, "ResTable_typeSpec");
5649            if (err != NO_ERROR) {
5650                return (mError=err);
5651            }
5652
5653            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5654            const size_t newEntryCount = dtohl(typeSpec->entryCount);
5655
5656            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5657                                    (void*)(base-(const uint8_t*)chunk),
5658                                    dtohs(typeSpec->header.type),
5659                                    dtohs(typeSpec->header.headerSize),
5660                                    (void*)typeSpecSize));
5661            // look for block overrun or int overflow when multiplying by 4
5662            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5663                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5664                    > typeSpecSize)) {
5665                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5666                        (void*)(dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5667                        (void*)typeSpecSize);
5668                return (mError=BAD_TYPE);
5669            }
5670
5671            if (typeSpec->id == 0) {
5672                ALOGW("ResTable_type has an id of 0.");
5673                return (mError=BAD_TYPE);
5674            }
5675
5676            if (newEntryCount > 0) {
5677                uint8_t typeIndex = typeSpec->id - 1;
5678                ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id);
5679                if (idmapIndex >= 0) {
5680                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5681                }
5682
5683                TypeList& typeList = group->types.editItemAt(typeIndex);
5684                if (!typeList.isEmpty()) {
5685                    const Type* existingType = typeList[0];
5686                    if (existingType->entryCount != newEntryCount && idmapIndex < 0) {
5687                        ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5688                                (int) newEntryCount, (int) existingType->entryCount);
5689                        // We should normally abort here, but some legacy apps declare
5690                        // resources in the 'android' package (old bug in AAPT).
5691                    }
5692                }
5693
5694                Type* t = new Type(header, package, newEntryCount);
5695                t->typeSpec = typeSpec;
5696                t->typeSpecFlags = (const uint32_t*)(
5697                        ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5698                if (idmapIndex >= 0) {
5699                    t->idmapEntries = idmapEntries[idmapIndex];
5700                }
5701                typeList.add(t);
5702                group->largestTypeId = max(group->largestTypeId, typeSpec->id);
5703            } else {
5704                ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id);
5705            }
5706
5707        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5708            const ResTable_type* type = (const ResTable_type*)(chunk);
5709            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5710                                 endPos, "ResTable_type");
5711            if (err != NO_ERROR) {
5712                return (mError=err);
5713            }
5714
5715            const uint32_t typeSize = dtohl(type->header.size);
5716            const size_t newEntryCount = dtohl(type->entryCount);
5717
5718            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5719                                    (void*)(base-(const uint8_t*)chunk),
5720                                    dtohs(type->header.type),
5721                                    dtohs(type->header.headerSize),
5722                                    (void*)typeSize));
5723            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5724                    > typeSize) {
5725                ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.",
5726                        (void*)(dtohs(type->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5727                        typeSize);
5728                return (mError=BAD_TYPE);
5729            }
5730
5731            if (newEntryCount != 0
5732                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5733                ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.",
5734                     dtohl(type->entriesStart), typeSize);
5735                return (mError=BAD_TYPE);
5736            }
5737
5738            if (type->id == 0) {
5739                ALOGW("ResTable_type has an id of 0.");
5740                return (mError=BAD_TYPE);
5741            }
5742
5743            if (newEntryCount > 0) {
5744                uint8_t typeIndex = type->id - 1;
5745                ssize_t idmapIndex = idmapEntries.indexOfKey(type->id);
5746                if (idmapIndex >= 0) {
5747                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5748                }
5749
5750                TypeList& typeList = group->types.editItemAt(typeIndex);
5751                if (typeList.isEmpty()) {
5752                    ALOGE("No TypeSpec for type %d", type->id);
5753                    return (mError=BAD_TYPE);
5754                }
5755
5756                Type* t = typeList.editItemAt(typeList.size() - 1);
5757                if (newEntryCount != t->entryCount) {
5758                    ALOGE("ResTable_type entry count inconsistent: given %d, previously %d",
5759                        (int)newEntryCount, (int)t->entryCount);
5760                    return (mError=BAD_TYPE);
5761                }
5762
5763                if (t->package != package) {
5764                    ALOGE("No TypeSpec for type %d", type->id);
5765                    return (mError=BAD_TYPE);
5766                }
5767
5768                t->configs.add(type);
5769
5770                TABLE_GETENTRY(
5771                    ResTable_config thisConfig;
5772                    thisConfig.copyFromDtoH(type->config);
5773                    ALOGI("Adding config to type %d: %s\n",
5774                          type->id, thisConfig.toString().string()));
5775            } else {
5776                ALOGV("Skipping empty ResTable_type for type %d", type->id);
5777            }
5778
5779        } else if (ctype == RES_TABLE_LIBRARY_TYPE) {
5780            if (group->dynamicRefTable.entries().size() == 0) {
5781                status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk);
5782                if (err != NO_ERROR) {
5783                    return (mError=err);
5784                }
5785
5786                // Fill in the reference table with the entries we already know about.
5787                size_t N = mPackageGroups.size();
5788                for (size_t i = 0; i < N; i++) {
5789                    group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id);
5790                }
5791            } else {
5792                ALOGW("Found multiple library tables, ignoring...");
5793            }
5794        } else {
5795            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5796                                          endPos, "ResTable_package:unknown");
5797            if (err != NO_ERROR) {
5798                return (mError=err);
5799            }
5800        }
5801        chunk = (const ResChunk_header*)
5802            (((const uint8_t*)chunk) + csize);
5803    }
5804
5805    return NO_ERROR;
5806}
5807
5808DynamicRefTable::DynamicRefTable(uint8_t packageId)
5809    : mAssignedPackageId(packageId)
5810{
5811    memset(mLookupTable, 0, sizeof(mLookupTable));
5812
5813    // Reserved package ids
5814    mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
5815    mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
5816}
5817
5818status_t DynamicRefTable::load(const ResTable_lib_header* const header)
5819{
5820    const uint32_t entryCount = dtohl(header->count);
5821    const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount;
5822    const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize);
5823    if (sizeOfEntries > expectedSize) {
5824        ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).",
5825                expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry));
5826        return UNKNOWN_ERROR;
5827    }
5828
5829    const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) +
5830            dtohl(header->header.headerSize));
5831    for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
5832        uint32_t packageId = dtohl(entry->packageId);
5833        char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)];
5834        strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t));
5835        LIB_NOISY(ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(),
5836                dtohl(entry->packageId)));
5837        if (packageId >= 256) {
5838            ALOGE("Bad package id 0x%08x", packageId);
5839            return UNKNOWN_ERROR;
5840        }
5841        mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId);
5842        entry = entry + 1;
5843    }
5844    return NO_ERROR;
5845}
5846
5847status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId)
5848{
5849    ssize_t index = mEntries.indexOfKey(packageName);
5850    if (index < 0) {
5851        return UNKNOWN_ERROR;
5852    }
5853    mLookupTable[mEntries.valueAt(index)] = packageId;
5854    return NO_ERROR;
5855}
5856
5857status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const {
5858    uint32_t res = *resId;
5859    size_t packageId = Res_GETPACKAGE(res) + 1;
5860
5861    if (packageId == APP_PACKAGE_ID) {
5862        // No lookup needs to be done, app package IDs are absolute.
5863        return NO_ERROR;
5864    }
5865
5866    if (packageId == 0) {
5867        // The package ID is 0x00. That means that a shared library is accessing
5868        // its own local resource, so we fix up the resource with the calling
5869        // package ID.
5870        *resId |= ((uint32_t) mAssignedPackageId) << 24;
5871        return NO_ERROR;
5872    }
5873
5874    // Do a proper lookup.
5875    uint8_t translatedId = mLookupTable[packageId];
5876    if (translatedId == 0) {
5877        ALOGE("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.",
5878                (uint8_t)mAssignedPackageId, (uint8_t)packageId);
5879        for (size_t i = 0; i < 256; i++) {
5880            if (mLookupTable[i] != 0) {
5881                ALOGE("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]);
5882            }
5883        }
5884        return UNKNOWN_ERROR;
5885    }
5886
5887    *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24);
5888    return NO_ERROR;
5889}
5890
5891status_t DynamicRefTable::lookupResourceValue(Res_value* value) const {
5892    if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE) {
5893        return NO_ERROR;
5894    }
5895
5896    status_t err = lookupResourceId(&value->data);
5897    if (err != NO_ERROR) {
5898        return err;
5899    }
5900
5901    value->dataType = Res_value::TYPE_REFERENCE;
5902    return NO_ERROR;
5903}
5904
5905struct IdmapTypeMap {
5906    ssize_t overlayTypeId;
5907    size_t entryOffset;
5908    Vector<uint32_t> entryMap;
5909};
5910
5911status_t ResTable::createIdmap(const ResTable& overlay,
5912        uint32_t targetCrc, uint32_t overlayCrc,
5913        const char* targetPath, const char* overlayPath,
5914        void** outData, size_t* outSize) const
5915{
5916    // see README for details on the format of map
5917    if (mPackageGroups.size() == 0) {
5918        ALOGW("idmap: target package has no package groups, cannot create idmap\n");
5919        return UNKNOWN_ERROR;
5920    }
5921
5922    if (mPackageGroups[0]->packages.size() == 0) {
5923        ALOGW("idmap: target package has no packages in its first package group, "
5924                "cannot create idmap\n");
5925        return UNKNOWN_ERROR;
5926    }
5927
5928    KeyedVector<uint8_t, IdmapTypeMap> map;
5929
5930    // overlaid packages are assumed to contain only one package group
5931    const PackageGroup* pg = mPackageGroups[0];
5932
5933    // starting size is header
5934    *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES;
5935
5936    // target package id and number of types in map
5937    *outSize += 2 * sizeof(uint16_t);
5938
5939    // overlay packages are assumed to contain only one package group
5940    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5941
5942    for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) {
5943        const TypeList& typeList = pg->types[typeIndex];
5944        if (typeList.isEmpty()) {
5945            continue;
5946        }
5947
5948        const Type* typeConfigs = typeList[0];
5949
5950        IdmapTypeMap typeMap;
5951        typeMap.overlayTypeId = -1;
5952        typeMap.entryOffset = 0;
5953
5954        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5955            uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex);
5956            resource_name resName;
5957            if (!this->getResourceName(resID, false, &resName)) {
5958                if (typeMap.entryMap.isEmpty()) {
5959                    typeMap.entryOffset++;
5960                }
5961                continue;
5962            }
5963
5964            const String16 overlayType(resName.type, resName.typeLen);
5965            const String16 overlayName(resName.name, resName.nameLen);
5966            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5967                                                              overlayName.size(),
5968                                                              overlayType.string(),
5969                                                              overlayType.size(),
5970                                                              overlayPackage.string(),
5971                                                              overlayPackage.size());
5972            if (overlayResID == 0) {
5973                if (typeMap.entryMap.isEmpty()) {
5974                    typeMap.entryOffset++;
5975                }
5976                continue;
5977            }
5978
5979            if (typeMap.overlayTypeId == -1) {
5980                typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1;
5981            }
5982
5983            if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) {
5984                ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x"
5985                        " but entries should map to resources of type %02x",
5986                        resID, overlayResID, typeMap.overlayTypeId);
5987                return BAD_TYPE;
5988            }
5989
5990            if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) {
5991                // Resize to accomodate this entry and the 0's in between.
5992                if (typeMap.entryMap.resize((entryIndex - typeMap.entryOffset) + 1) < 0) {
5993                    return NO_MEMORY;
5994                }
5995                typeMap.entryMap.editTop() = Res_GETENTRY(overlayResID);
5996            } else {
5997                typeMap.entryMap.add(Res_GETENTRY(overlayResID));
5998            }
5999        }
6000
6001        if (!typeMap.entryMap.isEmpty()) {
6002            if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) {
6003                return NO_MEMORY;
6004            }
6005            *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t));
6006        }
6007    }
6008
6009    if (map.isEmpty()) {
6010        ALOGW("idmap: no resources in overlay package present in base package");
6011        return UNKNOWN_ERROR;
6012    }
6013
6014    if ((*outData = malloc(*outSize)) == NULL) {
6015        return NO_MEMORY;
6016    }
6017
6018    uint32_t* data = (uint32_t*)*outData;
6019    *data++ = htodl(IDMAP_MAGIC);
6020    *data++ = htodl(IDMAP_CURRENT_VERSION);
6021    *data++ = htodl(targetCrc);
6022    *data++ = htodl(overlayCrc);
6023    const char* paths[] = { targetPath, overlayPath };
6024    for (int j = 0; j < 2; ++j) {
6025        char* p = (char*)data;
6026        const char* path = paths[j];
6027        const size_t I = strlen(path);
6028        if (I > 255) {
6029            ALOGV("path exceeds expected 255 characters: %s\n", path);
6030            return UNKNOWN_ERROR;
6031        }
6032        for (size_t i = 0; i < 256; ++i) {
6033            *p++ = i < I ? path[i] : '\0';
6034        }
6035        data += 256 / sizeof(uint32_t);
6036    }
6037    const size_t mapSize = map.size();
6038    uint16_t* typeData = reinterpret_cast<uint16_t*>(data);
6039    *typeData++ = htods(pg->id);
6040    *typeData++ = htods(mapSize);
6041    for (size_t i = 0; i < mapSize; ++i) {
6042        uint8_t targetTypeId = map.keyAt(i);
6043        const IdmapTypeMap& typeMap = map[i];
6044        *typeData++ = htods(targetTypeId + 1);
6045        *typeData++ = htods(typeMap.overlayTypeId);
6046        *typeData++ = htods(typeMap.entryMap.size());
6047        *typeData++ = htods(typeMap.entryOffset);
6048
6049        const size_t entryCount = typeMap.entryMap.size();
6050        uint32_t* entries = reinterpret_cast<uint32_t*>(typeData);
6051        for (size_t j = 0; j < entryCount; j++) {
6052            entries[j] = htodl(typeMap.entryMap[j]);
6053        }
6054        typeData += entryCount * 2;
6055    }
6056
6057    return NO_ERROR;
6058}
6059
6060bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
6061                            uint32_t* pVersion,
6062                            uint32_t* pTargetCrc, uint32_t* pOverlayCrc,
6063                            String8* pTargetPath, String8* pOverlayPath)
6064{
6065    const uint32_t* map = (const uint32_t*)idmap;
6066    if (!assertIdmapHeader(map, sizeBytes)) {
6067        return false;
6068    }
6069    if (pVersion) {
6070        *pVersion = dtohl(map[1]);
6071    }
6072    if (pTargetCrc) {
6073        *pTargetCrc = dtohl(map[2]);
6074    }
6075    if (pOverlayCrc) {
6076        *pOverlayCrc = dtohl(map[3]);
6077    }
6078    if (pTargetPath) {
6079        pTargetPath->setTo(reinterpret_cast<const char*>(map + 4));
6080    }
6081    if (pOverlayPath) {
6082        pOverlayPath->setTo(reinterpret_cast<const char*>(map + 4 + 256 / sizeof(uint32_t)));
6083    }
6084    return true;
6085}
6086
6087
6088#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
6089
6090#define CHAR16_ARRAY_EQ(constant, var, len) \
6091        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
6092
6093static void print_complex(uint32_t complex, bool isFraction)
6094{
6095    const float MANTISSA_MULT =
6096        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
6097    const float RADIX_MULTS[] = {
6098        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
6099        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
6100    };
6101
6102    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
6103                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
6104            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
6105                            & Res_value::COMPLEX_RADIX_MASK];
6106    printf("%f", value);
6107
6108    if (!isFraction) {
6109        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6110            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
6111            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
6112            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
6113            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
6114            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
6115            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
6116            default: printf(" (unknown unit)"); break;
6117        }
6118    } else {
6119        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6120            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
6121            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
6122            default: printf(" (unknown unit)"); break;
6123        }
6124    }
6125}
6126
6127// Normalize a string for output
6128String8 ResTable::normalizeForOutput( const char *input )
6129{
6130    String8 ret;
6131    char buff[2];
6132    buff[1] = '\0';
6133
6134    while (*input != '\0') {
6135        switch (*input) {
6136            // All interesting characters are in the ASCII zone, so we are making our own lives
6137            // easier by scanning the string one byte at a time.
6138        case '\\':
6139            ret += "\\\\";
6140            break;
6141        case '\n':
6142            ret += "\\n";
6143            break;
6144        case '"':
6145            ret += "\\\"";
6146            break;
6147        default:
6148            buff[0] = *input;
6149            ret += buff;
6150            break;
6151        }
6152
6153        input++;
6154    }
6155
6156    return ret;
6157}
6158
6159void ResTable::print_value(const Package* pkg, const Res_value& value) const
6160{
6161    if (value.dataType == Res_value::TYPE_NULL) {
6162        printf("(null)\n");
6163    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
6164        printf("(reference) 0x%08x\n", value.data);
6165    } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) {
6166        printf("(dynamic reference) 0x%08x\n", value.data);
6167    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
6168        printf("(attribute) 0x%08x\n", value.data);
6169    } else if (value.dataType == Res_value::TYPE_STRING) {
6170        size_t len;
6171        const char* str8 = pkg->header->values.string8At(
6172                value.data, &len);
6173        if (str8 != NULL) {
6174            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
6175        } else {
6176            const char16_t* str16 = pkg->header->values.stringAt(
6177                    value.data, &len);
6178            if (str16 != NULL) {
6179                printf("(string16) \"%s\"\n",
6180                    normalizeForOutput(String8(str16, len).string()).string());
6181            } else {
6182                printf("(string) null\n");
6183            }
6184        }
6185    } else if (value.dataType == Res_value::TYPE_FLOAT) {
6186        printf("(float) %g\n", *(const float*)&value.data);
6187    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
6188        printf("(dimension) ");
6189        print_complex(value.data, false);
6190        printf("\n");
6191    } else if (value.dataType == Res_value::TYPE_FRACTION) {
6192        printf("(fraction) ");
6193        print_complex(value.data, true);
6194        printf("\n");
6195    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
6196            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
6197        printf("(color) #%08x\n", value.data);
6198    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
6199        printf("(boolean) %s\n", value.data ? "true" : "false");
6200    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
6201            || value.dataType <= Res_value::TYPE_LAST_INT) {
6202        printf("(int) 0x%08x or %d\n", value.data, value.data);
6203    } else {
6204        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
6205               (int)value.dataType, (int)value.data,
6206               (int)value.size, (int)value.res0);
6207    }
6208}
6209
6210void ResTable::print(bool inclValues) const
6211{
6212    if (mError != 0) {
6213        printf("mError=0x%x (%s)\n", mError, strerror(mError));
6214    }
6215#if 0
6216    char localeStr[RESTABLE_MAX_LOCALE_LEN];
6217    mParams.getBcp47Locale(localeStr);
6218    printf("mParams=%s,\n" localeStr);
6219#endif
6220    size_t pgCount = mPackageGroups.size();
6221    printf("Package Groups (%d)\n", (int)pgCount);
6222    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
6223        const PackageGroup* pg = mPackageGroups[pgIndex];
6224        printf("Package Group %d id=%d packageCount=%d name=%s\n",
6225                (int)pgIndex, pg->id, (int)pg->packages.size(),
6226                String8(pg->name).string());
6227
6228        size_t pkgCount = pg->packages.size();
6229        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
6230            const Package* pkg = pg->packages[pkgIndex];
6231            printf("  Package %d id=%d name=%s\n", (int)pkgIndex,
6232                    pkg->package->id, String8(String16(pkg->package->name)).string());
6233        }
6234
6235        for (size_t typeIndex=0; typeIndex < pg->types.size(); typeIndex++) {
6236            const TypeList& typeList = pg->types[typeIndex];
6237            if (typeList.isEmpty()) {
6238                //printf("    type %d NULL\n", (int)typeIndex);
6239                continue;
6240            }
6241            const Type* typeConfigs = typeList[0];
6242            const size_t NTC = typeConfigs->configs.size();
6243            printf("    type %d configCount=%d entryCount=%d\n",
6244                   (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
6245            if (typeConfigs->typeSpecFlags != NULL) {
6246                for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
6247                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6248                                | (0x00ff0000 & ((typeIndex+1)<<16))
6249                                | (0x0000ffff & (entryIndex));
6250                    // Since we are creating resID without actually
6251                    // iterating over them, we have no idea which is a
6252                    // dynamic reference. We must check.
6253                    pg->dynamicRefTable.lookupResourceId(&resID);
6254
6255                    resource_name resName;
6256                    if (this->getResourceName(resID, true, &resName)) {
6257                        String8 type8;
6258                        String8 name8;
6259                        if (resName.type8 != NULL) {
6260                            type8 = String8(resName.type8, resName.typeLen);
6261                        } else {
6262                            type8 = String8(resName.type, resName.typeLen);
6263                        }
6264                        if (resName.name8 != NULL) {
6265                            name8 = String8(resName.name8, resName.nameLen);
6266                        } else {
6267                            name8 = String8(resName.name, resName.nameLen);
6268                        }
6269                        printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
6270                            resID,
6271                            CHAR16_TO_CSTR(resName.package, resName.packageLen),
6272                            type8.string(), name8.string(),
6273                            dtohl(typeConfigs->typeSpecFlags[entryIndex]));
6274                    } else {
6275                        printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
6276                    }
6277                }
6278            }
6279            for (size_t configIndex=0; configIndex<NTC; configIndex++) {
6280                const ResTable_type* type = typeConfigs->configs[configIndex];
6281                if ((((uint64_t)type)&0x3) != 0) {
6282                    printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
6283                    continue;
6284                }
6285                String8 configStr = type->config.toString();
6286                printf("      config %s:\n", configStr.size() > 0
6287                        ? configStr.string() : "(default)");
6288                size_t entryCount = dtohl(type->entryCount);
6289                uint32_t entriesStart = dtohl(type->entriesStart);
6290                if ((entriesStart&0x3) != 0) {
6291                    printf("      NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart);
6292                    continue;
6293                }
6294                uint32_t typeSize = dtohl(type->header.size);
6295                if ((typeSize&0x3) != 0) {
6296                    printf("      NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize);
6297                    continue;
6298                }
6299                for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
6300
6301                    const uint8_t* const end = ((const uint8_t*)type)
6302                        + dtohl(type->header.size);
6303                    const uint32_t* const eindex = (const uint32_t*)
6304                        (((const uint8_t*)type) + dtohs(type->header.headerSize));
6305
6306                    uint32_t thisOffset = dtohl(eindex[entryIndex]);
6307                    if (thisOffset == ResTable_type::NO_ENTRY) {
6308                        continue;
6309                    }
6310
6311                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6312                                | (0x00ff0000 & ((typeIndex+1)<<16))
6313                                | (0x0000ffff & (entryIndex));
6314                    pg->dynamicRefTable.lookupResourceId(&resID);
6315                    resource_name resName;
6316                    if (this->getResourceName(resID, true, &resName)) {
6317                        String8 type8;
6318                        String8 name8;
6319                        if (resName.type8 != NULL) {
6320                            type8 = String8(resName.type8, resName.typeLen);
6321                        } else {
6322                            type8 = String8(resName.type, resName.typeLen);
6323                        }
6324                        if (resName.name8 != NULL) {
6325                            name8 = String8(resName.name8, resName.nameLen);
6326                        } else {
6327                            name8 = String8(resName.name, resName.nameLen);
6328                        }
6329                        printf("        resource 0x%08x %s:%s/%s: ", resID,
6330                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
6331                                type8.string(), name8.string());
6332                    } else {
6333                        printf("        INVALID RESOURCE 0x%08x: ", resID);
6334                    }
6335                    if ((thisOffset&0x3) != 0) {
6336                        printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset);
6337                        continue;
6338                    }
6339                    if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
6340                        printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n",
6341                               entriesStart, thisOffset, typeSize);
6342                        continue;
6343                    }
6344
6345                    const ResTable_entry* ent = (const ResTable_entry*)
6346                        (((const uint8_t*)type) + entriesStart + thisOffset);
6347                    if (((entriesStart + thisOffset)&0x3) != 0) {
6348                        printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n",
6349                             (entriesStart + thisOffset));
6350                        continue;
6351                    }
6352
6353                    uintptr_t esize = dtohs(ent->size);
6354                    if ((esize&0x3) != 0) {
6355                        printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize);
6356                        continue;
6357                    }
6358                    if ((thisOffset+esize) > typeSize) {
6359                        printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n",
6360                               entriesStart, thisOffset, (void *)esize, typeSize);
6361                        continue;
6362                    }
6363
6364                    const Res_value* valuePtr = NULL;
6365                    const ResTable_map_entry* bagPtr = NULL;
6366                    Res_value value;
6367                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
6368                        printf("<bag>");
6369                        bagPtr = (const ResTable_map_entry*)ent;
6370                    } else {
6371                        valuePtr = (const Res_value*)
6372                            (((const uint8_t*)ent) + esize);
6373                        value.copyFrom_dtoh(*valuePtr);
6374                        printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
6375                               (int)value.dataType, (int)value.data,
6376                               (int)value.size, (int)value.res0);
6377                    }
6378
6379                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
6380                        printf(" (PUBLIC)");
6381                    }
6382                    printf("\n");
6383
6384                    if (inclValues) {
6385                        if (valuePtr != NULL) {
6386                            printf("          ");
6387                            print_value(typeConfigs->package, value);
6388                        } else if (bagPtr != NULL) {
6389                            const int N = dtohl(bagPtr->count);
6390                            const uint8_t* baseMapPtr = (const uint8_t*)ent;
6391                            size_t mapOffset = esize;
6392                            const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6393                            const uint32_t parent = dtohl(bagPtr->parent.ident);
6394                            uint32_t resolvedParent = parent;
6395                            status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent);
6396                            if (err != NO_ERROR) {
6397                                resolvedParent = 0;
6398                            }
6399                            printf("          Parent=0x%08x(Resolved=0x%08x), Count=%d\n",
6400                                    parent, resolvedParent, N);
6401                            for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
6402                                printf("          #%i (Key=0x%08x): ",
6403                                    i, dtohl(mapPtr->name.ident));
6404                                value.copyFrom_dtoh(mapPtr->value);
6405                                print_value(typeConfigs->package, value);
6406                                const size_t size = dtohs(mapPtr->value.size);
6407                                mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
6408                                mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6409                            }
6410                        }
6411                    }
6412                }
6413            }
6414        }
6415    }
6416}
6417
6418}   // namespace android
6419