ResourceTypes.cpp revision c7400b0ce66e916cf8be239c26cd5acbd15ef745 
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        mStrings = (const void*)
508            (((const uint8_t*)data)+mHeader->stringsStart);
509        if (mHeader->stringsStart >= (mHeader->header.size-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        if (mHeader->styleCount == 0) {
515            mStringPoolSize =
516                (mHeader->header.size-mHeader->stringsStart)/charSize;
517        } else {
518            // check invariant: styles starts before end of data
519            if (mHeader->stylesStart >= (mHeader->header.size-sizeof(uint16_t))) {
520                ALOGW("Bad style block: style block starts at %d past data size of %d\n",
521                    (int)mHeader->stylesStart, (int)mHeader->header.size);
522                return (mError=BAD_TYPE);
523            }
524            // check invariant: styles follow the strings
525            if (mHeader->stylesStart <= mHeader->stringsStart) {
526                ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
527                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
528                return (mError=BAD_TYPE);
529            }
530            mStringPoolSize =
531                (mHeader->stylesStart-mHeader->stringsStart)/charSize;
532        }
533
534        // check invariant: stringCount > 0 requires a string pool to exist
535        if (mStringPoolSize == 0) {
536            ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
537            return (mError=BAD_TYPE);
538        }
539
540        if (notDeviceEndian) {
541            size_t i;
542            uint32_t* e = const_cast<uint32_t*>(mEntries);
543            for (i=0; i<mHeader->stringCount; i++) {
544                e[i] = dtohl(mEntries[i]);
545            }
546            if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
547                const char16_t* strings = (const char16_t*)mStrings;
548                char16_t* s = const_cast<char16_t*>(strings);
549                for (i=0; i<mStringPoolSize; i++) {
550                    s[i] = dtohs(strings[i]);
551                }
552            }
553        }
554
555        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
556                ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
557                (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
558                ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
559            ALOGW("Bad string block: last string is not 0-terminated\n");
560            return (mError=BAD_TYPE);
561        }
562    } else {
563        mStrings = NULL;
564        mStringPoolSize = 0;
565    }
566
567    if (mHeader->styleCount > 0) {
568        mEntryStyles = mEntries + mHeader->stringCount;
569        // invariant: integer overflow in calculating mEntryStyles
570        if (mEntryStyles < mEntries) {
571            ALOGW("Bad string block: integer overflow finding styles\n");
572            return (mError=BAD_TYPE);
573        }
574
575        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
576            ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
577                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
578                    (int)size);
579            return (mError=BAD_TYPE);
580        }
581        mStyles = (const uint32_t*)
582            (((const uint8_t*)data)+mHeader->stylesStart);
583        if (mHeader->stylesStart >= mHeader->header.size) {
584            ALOGW("Bad string block: style pool starts %d, after total size %d\n",
585                    (int)mHeader->stylesStart, (int)mHeader->header.size);
586            return (mError=BAD_TYPE);
587        }
588        mStylePoolSize =
589            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
590
591        if (notDeviceEndian) {
592            size_t i;
593            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
594            for (i=0; i<mHeader->styleCount; i++) {
595                e[i] = dtohl(mEntryStyles[i]);
596            }
597            uint32_t* s = const_cast<uint32_t*>(mStyles);
598            for (i=0; i<mStylePoolSize; i++) {
599                s[i] = dtohl(mStyles[i]);
600            }
601        }
602
603        const ResStringPool_span endSpan = {
604            { htodl(ResStringPool_span::END) },
605            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
606        };
607        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
608                   &endSpan, sizeof(endSpan)) != 0) {
609            ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
610            return (mError=BAD_TYPE);
611        }
612    } else {
613        mEntryStyles = NULL;
614        mStyles = NULL;
615        mStylePoolSize = 0;
616    }
617
618    return (mError=NO_ERROR);
619}
620
621status_t ResStringPool::getError() const
622{
623    return mError;
624}
625
626void ResStringPool::uninit()
627{
628    mError = NO_INIT;
629    if (mHeader != NULL && mCache != NULL) {
630        for (size_t x = 0; x < mHeader->stringCount; x++) {
631            if (mCache[x] != NULL) {
632                free(mCache[x]);
633                mCache[x] = NULL;
634            }
635        }
636        free(mCache);
637        mCache = NULL;
638    }
639    if (mOwnedData) {
640        free(mOwnedData);
641        mOwnedData = NULL;
642    }
643}
644
645/**
646 * Strings in UTF-16 format have length indicated by a length encoded in the
647 * stored data. It is either 1 or 2 characters of length data. This allows a
648 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
649 * much data in a string, you're abusing them.
650 *
651 * If the high bit is set, then there are two characters or 4 bytes of length
652 * data encoded. In that case, drop the high bit of the first character and
653 * add it together with the next character.
654 */
655static inline size_t
656decodeLength(const char16_t** str)
657{
658    size_t len = **str;
659    if ((len & 0x8000) != 0) {
660        (*str)++;
661        len = ((len & 0x7FFF) << 16) | **str;
662    }
663    (*str)++;
664    return len;
665}
666
667/**
668 * Strings in UTF-8 format have length indicated by a length encoded in the
669 * stored data. It is either 1 or 2 characters of length data. This allows a
670 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
671 * text in another way if you're using that much data in a single string.
672 *
673 * If the high bit is set, then there are two characters or 2 bytes of length
674 * data encoded. In that case, drop the high bit of the first character and
675 * add it together with the next character.
676 */
677static inline size_t
678decodeLength(const uint8_t** str)
679{
680    size_t len = **str;
681    if ((len & 0x80) != 0) {
682        (*str)++;
683        len = ((len & 0x7F) << 8) | **str;
684    }
685    (*str)++;
686    return len;
687}
688
689const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
690{
691    if (mError == NO_ERROR && idx < mHeader->stringCount) {
692        const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
693        const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
694        if (off < (mStringPoolSize-1)) {
695            if (!isUTF8) {
696                const char16_t* strings = (char16_t*)mStrings;
697                const char16_t* str = strings+off;
698
699                *u16len = decodeLength(&str);
700                if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
701                    return str;
702                } else {
703                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
704                            (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
705                }
706            } else {
707                const uint8_t* strings = (uint8_t*)mStrings;
708                const uint8_t* u8str = strings+off;
709
710                *u16len = decodeLength(&u8str);
711                size_t u8len = decodeLength(&u8str);
712
713                // encLen must be less than 0x7FFF due to encoding.
714                if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
715                    AutoMutex lock(mDecodeLock);
716
717                    if (mCache == NULL) {
718#ifndef HAVE_ANDROID_OS
719                        STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
720                                mHeader->stringCount*sizeof(char16_t**)));
721#else
722                        // We do not want to be in this case when actually running Android.
723                        ALOGW("CREATING STRING CACHE OF %d bytes",
724                                mHeader->stringCount*sizeof(char16_t**));
725#endif
726                        mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
727                        if (mCache == NULL) {
728                            ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
729                                    (int)(mHeader->stringCount*sizeof(char16_t**)));
730                            return NULL;
731                        }
732                    }
733
734                    if (mCache[idx] != NULL) {
735                        return mCache[idx];
736                    }
737
738                    ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
739                    if (actualLen < 0 || (size_t)actualLen != *u16len) {
740                        ALOGW("Bad string block: string #%lld decoded length is not correct "
741                                "%lld vs %llu\n",
742                                (long long)idx, (long long)actualLen, (long long)*u16len);
743                        return NULL;
744                    }
745
746                    char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
747                    if (!u16str) {
748                        ALOGW("No memory when trying to allocate decode cache for string #%d\n",
749                                (int)idx);
750                        return NULL;
751                    }
752
753                    STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
754                    utf8_to_utf16(u8str, u8len, u16str);
755                    mCache[idx] = u16str;
756                    return u16str;
757                } else {
758                    ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
759                            (long long)idx, (long long)(u8str+u8len-strings),
760                            (long long)mStringPoolSize);
761                }
762            }
763        } else {
764            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
765                    (int)idx, (int)(off*sizeof(uint16_t)),
766                    (int)(mStringPoolSize*sizeof(uint16_t)));
767        }
768    }
769    return NULL;
770}
771
772const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
773{
774    if (mError == NO_ERROR && idx < mHeader->stringCount) {
775        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
776            return NULL;
777        }
778        const uint32_t off = mEntries[idx]/sizeof(char);
779        if (off < (mStringPoolSize-1)) {
780            const uint8_t* strings = (uint8_t*)mStrings;
781            const uint8_t* str = strings+off;
782            *outLen = decodeLength(&str);
783            size_t encLen = decodeLength(&str);
784            if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
785                return (const char*)str;
786            } else {
787                ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
788                        (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
789            }
790        } else {
791            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
792                    (int)idx, (int)(off*sizeof(uint16_t)),
793                    (int)(mStringPoolSize*sizeof(uint16_t)));
794        }
795    }
796    return NULL;
797}
798
799const String8 ResStringPool::string8ObjectAt(size_t idx) const
800{
801    size_t len;
802    const char *str = (const char*)string8At(idx, &len);
803    if (str != NULL) {
804        return String8(str);
805    }
806    return String8(stringAt(idx, &len));
807}
808
809const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
810{
811    return styleAt(ref.index);
812}
813
814const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
815{
816    if (mError == NO_ERROR && idx < mHeader->styleCount) {
817        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
818        if (off < mStylePoolSize) {
819            return (const ResStringPool_span*)(mStyles+off);
820        } else {
821            ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
822                    (int)idx, (int)(off*sizeof(uint32_t)),
823                    (int)(mStylePoolSize*sizeof(uint32_t)));
824        }
825    }
826    return NULL;
827}
828
829ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
830{
831    if (mError != NO_ERROR) {
832        return mError;
833    }
834
835    size_t len;
836
837    if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
838        STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
839
840        // The string pool contains UTF 8 strings; we don't want to cause
841        // temporary UTF-16 strings to be created as we search.
842        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
843            // Do a binary search for the string...  this is a little tricky,
844            // because the strings are sorted with strzcmp16().  So to match
845            // the ordering, we need to convert strings in the pool to UTF-16.
846            // But we don't want to hit the cache, so instead we will have a
847            // local temporary allocation for the conversions.
848            char16_t* convBuffer = (char16_t*)malloc(strLen+4);
849            ssize_t l = 0;
850            ssize_t h = mHeader->stringCount-1;
851
852            ssize_t mid;
853            while (l <= h) {
854                mid = l + (h - l)/2;
855                const uint8_t* s = (const uint8_t*)string8At(mid, &len);
856                int c;
857                if (s != NULL) {
858                    char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
859                    *end = 0;
860                    c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
861                } else {
862                    c = -1;
863                }
864                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
865                             (const char*)s, c, (int)l, (int)mid, (int)h));
866                if (c == 0) {
867                    STRING_POOL_NOISY(ALOGI("MATCH!"));
868                    free(convBuffer);
869                    return mid;
870                } else if (c < 0) {
871                    l = mid + 1;
872                } else {
873                    h = mid - 1;
874                }
875            }
876            free(convBuffer);
877        } else {
878            // It is unusual to get the ID from an unsorted string block...
879            // most often this happens because we want to get IDs for style
880            // span tags; since those always appear at the end of the string
881            // block, start searching at the back.
882            String8 str8(str, strLen);
883            const size_t str8Len = str8.size();
884            for (int i=mHeader->stringCount-1; i>=0; i--) {
885                const char* s = string8At(i, &len);
886                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
887                             String8(s).string(),
888                             i));
889                if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
890                    STRING_POOL_NOISY(ALOGI("MATCH!"));
891                    return i;
892                }
893            }
894        }
895
896    } else {
897        STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
898
899        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
900            // Do a binary search for the string...
901            ssize_t l = 0;
902            ssize_t h = mHeader->stringCount-1;
903
904            ssize_t mid;
905            while (l <= h) {
906                mid = l + (h - l)/2;
907                const char16_t* s = stringAt(mid, &len);
908                int c = s ? strzcmp16(s, len, str, strLen) : -1;
909                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
910                             String8(s).string(),
911                             c, (int)l, (int)mid, (int)h));
912                if (c == 0) {
913                    STRING_POOL_NOISY(ALOGI("MATCH!"));
914                    return mid;
915                } else if (c < 0) {
916                    l = mid + 1;
917                } else {
918                    h = mid - 1;
919                }
920            }
921        } else {
922            // It is unusual to get the ID from an unsorted string block...
923            // most often this happens because we want to get IDs for style
924            // span tags; since those always appear at the end of the string
925            // block, start searching at the back.
926            for (int i=mHeader->stringCount-1; i>=0; i--) {
927                const char16_t* s = stringAt(i, &len);
928                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
929                             String8(s).string(),
930                             i));
931                if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
932                    STRING_POOL_NOISY(ALOGI("MATCH!"));
933                    return i;
934                }
935            }
936        }
937    }
938
939    return NAME_NOT_FOUND;
940}
941
942size_t ResStringPool::size() const
943{
944    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
945}
946
947size_t ResStringPool::styleCount() const
948{
949    return (mError == NO_ERROR) ? mHeader->styleCount : 0;
950}
951
952size_t ResStringPool::bytes() const
953{
954    return (mError == NO_ERROR) ? mHeader->header.size : 0;
955}
956
957bool ResStringPool::isSorted() const
958{
959    return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
960}
961
962bool ResStringPool::isUTF8() const
963{
964    return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
965}
966
967// --------------------------------------------------------------------
968// --------------------------------------------------------------------
969// --------------------------------------------------------------------
970
971ResXMLParser::ResXMLParser(const ResXMLTree& tree)
972    : mTree(tree), mEventCode(BAD_DOCUMENT)
973{
974}
975
976void ResXMLParser::restart()
977{
978    mCurNode = NULL;
979    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
980}
981const ResStringPool& ResXMLParser::getStrings() const
982{
983    return mTree.mStrings;
984}
985
986ResXMLParser::event_code_t ResXMLParser::getEventType() const
987{
988    return mEventCode;
989}
990
991ResXMLParser::event_code_t ResXMLParser::next()
992{
993    if (mEventCode == START_DOCUMENT) {
994        mCurNode = mTree.mRootNode;
995        mCurExt = mTree.mRootExt;
996        return (mEventCode=mTree.mRootCode);
997    } else if (mEventCode >= FIRST_CHUNK_CODE) {
998        return nextNode();
999    }
1000    return mEventCode;
1001}
1002
1003int32_t ResXMLParser::getCommentID() const
1004{
1005    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
1006}
1007
1008const uint16_t* ResXMLParser::getComment(size_t* outLen) const
1009{
1010    int32_t id = getCommentID();
1011    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1012}
1013
1014uint32_t ResXMLParser::getLineNumber() const
1015{
1016    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
1017}
1018
1019int32_t ResXMLParser::getTextID() const
1020{
1021    if (mEventCode == TEXT) {
1022        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
1023    }
1024    return -1;
1025}
1026
1027const uint16_t* ResXMLParser::getText(size_t* outLen) const
1028{
1029    int32_t id = getTextID();
1030    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1031}
1032
1033ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
1034{
1035    if (mEventCode == TEXT) {
1036        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
1037        return sizeof(Res_value);
1038    }
1039    return BAD_TYPE;
1040}
1041
1042int32_t ResXMLParser::getNamespacePrefixID() const
1043{
1044    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1045        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
1046    }
1047    return -1;
1048}
1049
1050const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
1051{
1052    int32_t id = getNamespacePrefixID();
1053    //printf("prefix=%d  event=%p\n", id, mEventCode);
1054    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1055}
1056
1057int32_t ResXMLParser::getNamespaceUriID() const
1058{
1059    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1060        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
1061    }
1062    return -1;
1063}
1064
1065const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
1066{
1067    int32_t id = getNamespaceUriID();
1068    //printf("uri=%d  event=%p\n", id, mEventCode);
1069    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1070}
1071
1072int32_t ResXMLParser::getElementNamespaceID() const
1073{
1074    if (mEventCode == START_TAG) {
1075        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
1076    }
1077    if (mEventCode == END_TAG) {
1078        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
1079    }
1080    return -1;
1081}
1082
1083const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
1084{
1085    int32_t id = getElementNamespaceID();
1086    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1087}
1088
1089int32_t ResXMLParser::getElementNameID() const
1090{
1091    if (mEventCode == START_TAG) {
1092        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
1093    }
1094    if (mEventCode == END_TAG) {
1095        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
1096    }
1097    return -1;
1098}
1099
1100const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
1101{
1102    int32_t id = getElementNameID();
1103    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1104}
1105
1106size_t ResXMLParser::getAttributeCount() const
1107{
1108    if (mEventCode == START_TAG) {
1109        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
1110    }
1111    return 0;
1112}
1113
1114int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
1115{
1116    if (mEventCode == START_TAG) {
1117        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1118        if (idx < dtohs(tag->attributeCount)) {
1119            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1120                (((const uint8_t*)tag)
1121                 + dtohs(tag->attributeStart)
1122                 + (dtohs(tag->attributeSize)*idx));
1123            return dtohl(attr->ns.index);
1124        }
1125    }
1126    return -2;
1127}
1128
1129const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1130{
1131    int32_t id = getAttributeNamespaceID(idx);
1132    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1133    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1134    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1135}
1136
1137const char* ResXMLParser::getAttributeNamespace8(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.string8At(id, outLen) : NULL;
1143}
1144
1145int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1146{
1147    if (mEventCode == START_TAG) {
1148        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1149        if (idx < dtohs(tag->attributeCount)) {
1150            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1151                (((const uint8_t*)tag)
1152                 + dtohs(tag->attributeStart)
1153                 + (dtohs(tag->attributeSize)*idx));
1154            return dtohl(attr->name.index);
1155        }
1156    }
1157    return -1;
1158}
1159
1160const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1161{
1162    int32_t id = getAttributeNameID(idx);
1163    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1164    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1165    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1166}
1167
1168const char* ResXMLParser::getAttributeName8(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.string8At(id, outLen) : NULL;
1174}
1175
1176uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1177{
1178    int32_t id = getAttributeNameID(idx);
1179    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1180        return dtohl(mTree.mResIds[id]);
1181    }
1182    return 0;
1183}
1184
1185int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
1186{
1187    if (mEventCode == START_TAG) {
1188        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1189        if (idx < dtohs(tag->attributeCount)) {
1190            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1191                (((const uint8_t*)tag)
1192                 + dtohs(tag->attributeStart)
1193                 + (dtohs(tag->attributeSize)*idx));
1194            return dtohl(attr->rawValue.index);
1195        }
1196    }
1197    return -1;
1198}
1199
1200const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1201{
1202    int32_t id = getAttributeValueStringID(idx);
1203    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1204    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1205}
1206
1207int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1208{
1209    if (mEventCode == START_TAG) {
1210        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1211        if (idx < dtohs(tag->attributeCount)) {
1212            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1213                (((const uint8_t*)tag)
1214                 + dtohs(tag->attributeStart)
1215                 + (dtohs(tag->attributeSize)*idx));
1216            uint8_t type = attr->typedValue.dataType;
1217            if (type != Res_value::TYPE_DYNAMIC_REFERENCE) {
1218                return type;
1219            }
1220
1221            // This is a dynamic reference. We adjust those references
1222            // to regular references at this level, so lie to the caller.
1223            return Res_value::TYPE_REFERENCE;
1224        }
1225    }
1226    return Res_value::TYPE_NULL;
1227}
1228
1229int32_t ResXMLParser::getAttributeData(size_t idx) const
1230{
1231    if (mEventCode == START_TAG) {
1232        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1233        if (idx < dtohs(tag->attributeCount)) {
1234            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1235                (((const uint8_t*)tag)
1236                 + dtohs(tag->attributeStart)
1237                 + (dtohs(tag->attributeSize)*idx));
1238            if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE ||
1239                    mTree.mDynamicRefTable == NULL) {
1240                return dtohl(attr->typedValue.data);
1241            }
1242
1243            uint32_t data = dtohl(attr->typedValue.data);
1244            if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) {
1245                return data;
1246            }
1247        }
1248    }
1249    return 0;
1250}
1251
1252ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1253{
1254    if (mEventCode == START_TAG) {
1255        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1256        if (idx < dtohs(tag->attributeCount)) {
1257            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1258                (((const uint8_t*)tag)
1259                 + dtohs(tag->attributeStart)
1260                 + (dtohs(tag->attributeSize)*idx));
1261            outValue->copyFrom_dtoh(attr->typedValue);
1262            if (mTree.mDynamicRefTable != NULL &&
1263                    mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) {
1264                return BAD_TYPE;
1265            }
1266            return sizeof(Res_value);
1267        }
1268    }
1269    return BAD_TYPE;
1270}
1271
1272ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1273{
1274    String16 nsStr(ns != NULL ? ns : "");
1275    String16 attrStr(attr);
1276    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1277                            attrStr.string(), attrStr.size());
1278}
1279
1280ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1281                                       const char16_t* attr, size_t attrLen) const
1282{
1283    if (mEventCode == START_TAG) {
1284        if (attr == NULL) {
1285            return NAME_NOT_FOUND;
1286        }
1287        const size_t N = getAttributeCount();
1288        if (mTree.mStrings.isUTF8()) {
1289            String8 ns8, attr8;
1290            if (ns != NULL) {
1291                ns8 = String8(ns, nsLen);
1292            }
1293            attr8 = String8(attr, attrLen);
1294            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1295                    attr8.string(), attrLen));
1296            for (size_t i=0; i<N; i++) {
1297                size_t curNsLen = 0, curAttrLen = 0;
1298                const char* curNs = getAttributeNamespace8(i, &curNsLen);
1299                const char* curAttr = getAttributeName8(i, &curAttrLen);
1300                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1301                        curAttr, curAttrLen));
1302                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1303                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1304                    if (ns == NULL) {
1305                        if (curNs == NULL) {
1306                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1307                            return i;
1308                        }
1309                    } else if (curNs != NULL) {
1310                        //printf(" --> ns=%s, curNs=%s\n",
1311                        //       String8(ns).string(), String8(curNs).string());
1312                        if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1313                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1314                            return i;
1315                        }
1316                    }
1317                }
1318            }
1319        } else {
1320            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1321                    String8(ns, nsLen).string(), nsLen,
1322                    String8(attr, attrLen).string(), attrLen));
1323            for (size_t i=0; i<N; i++) {
1324                size_t curNsLen = 0, curAttrLen = 0;
1325                const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1326                const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1327                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)",
1328                        String8(curNs, curNsLen).string(), curNsLen,
1329                        String8(curAttr, curAttrLen).string(), curAttrLen));
1330                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1331                        && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1332                    if (ns == NULL) {
1333                        if (curNs == NULL) {
1334                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1335                            return i;
1336                        }
1337                    } else if (curNs != NULL) {
1338                        //printf(" --> ns=%s, curNs=%s\n",
1339                        //       String8(ns).string(), String8(curNs).string());
1340                        if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1341                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1342                            return i;
1343                        }
1344                    }
1345                }
1346            }
1347        }
1348    }
1349
1350    return NAME_NOT_FOUND;
1351}
1352
1353ssize_t ResXMLParser::indexOfID() const
1354{
1355    if (mEventCode == START_TAG) {
1356        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1357        if (idx > 0) return (idx-1);
1358    }
1359    return NAME_NOT_FOUND;
1360}
1361
1362ssize_t ResXMLParser::indexOfClass() const
1363{
1364    if (mEventCode == START_TAG) {
1365        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1366        if (idx > 0) return (idx-1);
1367    }
1368    return NAME_NOT_FOUND;
1369}
1370
1371ssize_t ResXMLParser::indexOfStyle() const
1372{
1373    if (mEventCode == START_TAG) {
1374        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1375        if (idx > 0) return (idx-1);
1376    }
1377    return NAME_NOT_FOUND;
1378}
1379
1380ResXMLParser::event_code_t ResXMLParser::nextNode()
1381{
1382    if (mEventCode < 0) {
1383        return mEventCode;
1384    }
1385
1386    do {
1387        const ResXMLTree_node* next = (const ResXMLTree_node*)
1388            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1389        //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1390
1391        if (((const uint8_t*)next) >= mTree.mDataEnd) {
1392            mCurNode = NULL;
1393            return (mEventCode=END_DOCUMENT);
1394        }
1395
1396        if (mTree.validateNode(next) != NO_ERROR) {
1397            mCurNode = NULL;
1398            return (mEventCode=BAD_DOCUMENT);
1399        }
1400
1401        mCurNode = next;
1402        const uint16_t headerSize = dtohs(next->header.headerSize);
1403        const uint32_t totalSize = dtohl(next->header.size);
1404        mCurExt = ((const uint8_t*)next) + headerSize;
1405        size_t minExtSize = 0;
1406        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1407        switch ((mEventCode=eventCode)) {
1408            case RES_XML_START_NAMESPACE_TYPE:
1409            case RES_XML_END_NAMESPACE_TYPE:
1410                minExtSize = sizeof(ResXMLTree_namespaceExt);
1411                break;
1412            case RES_XML_START_ELEMENT_TYPE:
1413                minExtSize = sizeof(ResXMLTree_attrExt);
1414                break;
1415            case RES_XML_END_ELEMENT_TYPE:
1416                minExtSize = sizeof(ResXMLTree_endElementExt);
1417                break;
1418            case RES_XML_CDATA_TYPE:
1419                minExtSize = sizeof(ResXMLTree_cdataExt);
1420                break;
1421            default:
1422                ALOGW("Unknown XML block: header type %d in node at %d\n",
1423                     (int)dtohs(next->header.type),
1424                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1425                continue;
1426        }
1427
1428        if ((totalSize-headerSize) < minExtSize) {
1429            ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1430                 (int)dtohs(next->header.type),
1431                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1432                 (int)(totalSize-headerSize), (int)minExtSize);
1433            return (mEventCode=BAD_DOCUMENT);
1434        }
1435
1436        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1437        //       mCurNode, mCurExt, headerSize, minExtSize);
1438
1439        return eventCode;
1440    } while (true);
1441}
1442
1443void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1444{
1445    pos->eventCode = mEventCode;
1446    pos->curNode = mCurNode;
1447    pos->curExt = mCurExt;
1448}
1449
1450void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1451{
1452    mEventCode = pos.eventCode;
1453    mCurNode = pos.curNode;
1454    mCurExt = pos.curExt;
1455}
1456
1457// --------------------------------------------------------------------
1458
1459static volatile int32_t gCount = 0;
1460
1461ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable)
1462    : ResXMLParser(*this)
1463    , mDynamicRefTable(dynamicRefTable)
1464    , mError(NO_INIT), mOwnedData(NULL)
1465{
1466    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1467    restart();
1468}
1469
1470ResXMLTree::ResXMLTree()
1471    : ResXMLParser(*this)
1472    , mDynamicRefTable(NULL)
1473    , mError(NO_INIT), mOwnedData(NULL)
1474{
1475    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1476    restart();
1477}
1478
1479ResXMLTree::~ResXMLTree()
1480{
1481    //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1482    uninit();
1483}
1484
1485status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1486{
1487    uninit();
1488    mEventCode = START_DOCUMENT;
1489
1490    if (!data || !size) {
1491        return (mError=BAD_TYPE);
1492    }
1493
1494    if (copyData) {
1495        mOwnedData = malloc(size);
1496        if (mOwnedData == NULL) {
1497            return (mError=NO_MEMORY);
1498        }
1499        memcpy(mOwnedData, data, size);
1500        data = mOwnedData;
1501    }
1502
1503    mHeader = (const ResXMLTree_header*)data;
1504    mSize = dtohl(mHeader->header.size);
1505    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1506        ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1507             (int)dtohs(mHeader->header.headerSize),
1508             (int)dtohl(mHeader->header.size), (int)size);
1509        mError = BAD_TYPE;
1510        restart();
1511        return mError;
1512    }
1513    mDataEnd = ((const uint8_t*)mHeader) + mSize;
1514
1515    mStrings.uninit();
1516    mRootNode = NULL;
1517    mResIds = NULL;
1518    mNumResIds = 0;
1519
1520    // First look for a couple interesting chunks: the string block
1521    // and first XML node.
1522    const ResChunk_header* chunk =
1523        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1524    const ResChunk_header* lastChunk = chunk;
1525    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1526           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1527        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1528        if (err != NO_ERROR) {
1529            mError = err;
1530            goto done;
1531        }
1532        const uint16_t type = dtohs(chunk->type);
1533        const size_t size = dtohl(chunk->size);
1534        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1535                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1536        if (type == RES_STRING_POOL_TYPE) {
1537            mStrings.setTo(chunk, size);
1538        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1539            mResIds = (const uint32_t*)
1540                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1541            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1542        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1543                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1544            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1545                mError = BAD_TYPE;
1546                goto done;
1547            }
1548            mCurNode = (const ResXMLTree_node*)lastChunk;
1549            if (nextNode() == BAD_DOCUMENT) {
1550                mError = BAD_TYPE;
1551                goto done;
1552            }
1553            mRootNode = mCurNode;
1554            mRootExt = mCurExt;
1555            mRootCode = mEventCode;
1556            break;
1557        } else {
1558            XML_NOISY(printf("Skipping unknown chunk!\n"));
1559        }
1560        lastChunk = chunk;
1561        chunk = (const ResChunk_header*)
1562            (((const uint8_t*)chunk) + size);
1563    }
1564
1565    if (mRootNode == NULL) {
1566        ALOGW("Bad XML block: no root element node found\n");
1567        mError = BAD_TYPE;
1568        goto done;
1569    }
1570
1571    mError = mStrings.getError();
1572
1573done:
1574    restart();
1575    return mError;
1576}
1577
1578status_t ResXMLTree::getError() const
1579{
1580    return mError;
1581}
1582
1583void ResXMLTree::uninit()
1584{
1585    mError = NO_INIT;
1586    mStrings.uninit();
1587    if (mOwnedData) {
1588        free(mOwnedData);
1589        mOwnedData = NULL;
1590    }
1591    restart();
1592}
1593
1594status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1595{
1596    const uint16_t eventCode = dtohs(node->header.type);
1597
1598    status_t err = validate_chunk(
1599        &node->header, sizeof(ResXMLTree_node),
1600        mDataEnd, "ResXMLTree_node");
1601
1602    if (err >= NO_ERROR) {
1603        // Only perform additional validation on START nodes
1604        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1605            return NO_ERROR;
1606        }
1607
1608        const uint16_t headerSize = dtohs(node->header.headerSize);
1609        const uint32_t size = dtohl(node->header.size);
1610        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1611            (((const uint8_t*)node) + headerSize);
1612        // check for sensical values pulled out of the stream so far...
1613        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1614                && ((void*)attrExt > (void*)node)) {
1615            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1616                * dtohs(attrExt->attributeCount);
1617            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1618                return NO_ERROR;
1619            }
1620            ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1621                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1622                    (unsigned int)(size-headerSize));
1623        }
1624        else {
1625            ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1626                (unsigned int)headerSize, (unsigned int)size);
1627        }
1628        return BAD_TYPE;
1629    }
1630
1631    return err;
1632
1633#if 0
1634    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1635
1636    const uint16_t headerSize = dtohs(node->header.headerSize);
1637    const uint32_t size = dtohl(node->header.size);
1638
1639    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1640        if (size >= headerSize) {
1641            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1642                if (!isStart) {
1643                    return NO_ERROR;
1644                }
1645                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1646                        <= (size-headerSize)) {
1647                    return NO_ERROR;
1648                }
1649                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1650                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1651                        (int)(size-headerSize));
1652                return BAD_TYPE;
1653            }
1654            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1655                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1656            return BAD_TYPE;
1657        }
1658        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1659                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1660                (int)headerSize, (int)size);
1661        return BAD_TYPE;
1662    }
1663    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1664            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1665            (int)headerSize);
1666    return BAD_TYPE;
1667#endif
1668}
1669
1670// --------------------------------------------------------------------
1671// --------------------------------------------------------------------
1672// --------------------------------------------------------------------
1673
1674void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1675    const size_t size = dtohl(o.size);
1676    if (size >= sizeof(ResTable_config)) {
1677        *this = o;
1678    } else {
1679        memcpy(this, &o, size);
1680        memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1681    }
1682}
1683
1684/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base,
1685        char out[4]) {
1686  if (in[0] & 0x80) {
1687      // The high bit is "1", which means this is a packed three letter
1688      // language code.
1689
1690      // The smallest 5 bits of the second char are the first alphabet.
1691      const uint8_t first = in[1] & 0x1f;
1692      // The last three bits of the second char and the first two bits
1693      // of the first char are the second alphabet.
1694      const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3);
1695      // Bits 3 to 7 (inclusive) of the first char are the third alphabet.
1696      const uint8_t third = (in[0] & 0x7c) >> 2;
1697
1698      out[0] = first + base;
1699      out[1] = second + base;
1700      out[2] = third + base;
1701      out[3] = 0;
1702
1703      return 3;
1704  }
1705
1706  if (in[0]) {
1707      memcpy(out, in, 2);
1708      memset(out + 2, 0, 2);
1709      return 2;
1710  }
1711
1712  memset(out, 0, 4);
1713  return 0;
1714}
1715
1716/* static */ void packLanguageOrRegion(const char* in, const char base,
1717        char out[2]) {
1718  if (in[2] == 0 || in[2] == '-') {
1719      out[0] = in[0];
1720      out[1] = in[1];
1721  } else {
1722      uint8_t first = (in[0] - base) & 0x007f;
1723      uint8_t second = (in[1] - base) & 0x007f;
1724      uint8_t third = (in[2] - base) & 0x007f;
1725
1726      out[0] = (0x80 | (third << 2) | (second >> 3));
1727      out[1] = ((second << 5) | first);
1728  }
1729}
1730
1731
1732void ResTable_config::packLanguage(const char* language) {
1733    packLanguageOrRegion(language, 'a', this->language);
1734}
1735
1736void ResTable_config::packRegion(const char* region) {
1737    packLanguageOrRegion(region, '0', this->country);
1738}
1739
1740size_t ResTable_config::unpackLanguage(char language[4]) const {
1741    return unpackLanguageOrRegion(this->language, 'a', language);
1742}
1743
1744size_t ResTable_config::unpackRegion(char region[4]) const {
1745    return unpackLanguageOrRegion(this->country, '0', region);
1746}
1747
1748
1749void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1750    copyFromDeviceNoSwap(o);
1751    size = sizeof(ResTable_config);
1752    mcc = dtohs(mcc);
1753    mnc = dtohs(mnc);
1754    density = dtohs(density);
1755    screenWidth = dtohs(screenWidth);
1756    screenHeight = dtohs(screenHeight);
1757    sdkVersion = dtohs(sdkVersion);
1758    minorVersion = dtohs(minorVersion);
1759    smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1760    screenWidthDp = dtohs(screenWidthDp);
1761    screenHeightDp = dtohs(screenHeightDp);
1762}
1763
1764void ResTable_config::swapHtoD() {
1765    size = htodl(size);
1766    mcc = htods(mcc);
1767    mnc = htods(mnc);
1768    density = htods(density);
1769    screenWidth = htods(screenWidth);
1770    screenHeight = htods(screenHeight);
1771    sdkVersion = htods(sdkVersion);
1772    minorVersion = htods(minorVersion);
1773    smallestScreenWidthDp = htods(smallestScreenWidthDp);
1774    screenWidthDp = htods(screenWidthDp);
1775    screenHeightDp = htods(screenHeightDp);
1776}
1777
1778/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) {
1779    if (l.locale != r.locale) {
1780        // NOTE: This is the old behaviour with respect to comparison orders.
1781        // The diff value here doesn't make much sense (given our bit packing scheme)
1782        // but it's stable, and that's all we need.
1783        return l.locale - r.locale;
1784    }
1785
1786    // The language & region are equal, so compare the scripts and variants.
1787    int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript));
1788    if (script) {
1789        return script;
1790    }
1791
1792    // The language, region and script are equal, so compare variants.
1793    //
1794    // This should happen very infrequently (if at all.)
1795    return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant));
1796}
1797
1798int ResTable_config::compare(const ResTable_config& o) const {
1799    int32_t diff = (int32_t)(imsi - o.imsi);
1800    if (diff != 0) return diff;
1801    diff = compareLocales(*this, o);
1802    if (diff != 0) return diff;
1803    diff = (int32_t)(screenType - o.screenType);
1804    if (diff != 0) return diff;
1805    diff = (int32_t)(input - o.input);
1806    if (diff != 0) return diff;
1807    diff = (int32_t)(screenSize - o.screenSize);
1808    if (diff != 0) return diff;
1809    diff = (int32_t)(version - o.version);
1810    if (diff != 0) return diff;
1811    diff = (int32_t)(screenLayout - o.screenLayout);
1812    if (diff != 0) return diff;
1813    diff = (int32_t)(uiMode - o.uiMode);
1814    if (diff != 0) return diff;
1815    diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1816    if (diff != 0) return diff;
1817    diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1818    return (int)diff;
1819}
1820
1821int ResTable_config::compareLogical(const ResTable_config& o) const {
1822    if (mcc != o.mcc) {
1823        return mcc < o.mcc ? -1 : 1;
1824    }
1825    if (mnc != o.mnc) {
1826        return mnc < o.mnc ? -1 : 1;
1827    }
1828
1829    int diff = compareLocales(*this, o);
1830    if (diff < 0) {
1831        return -1;
1832    }
1833    if (diff > 0) {
1834        return 1;
1835    }
1836
1837    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1838        return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1839    }
1840    if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1841        return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1842    }
1843    if (screenWidthDp != o.screenWidthDp) {
1844        return screenWidthDp < o.screenWidthDp ? -1 : 1;
1845    }
1846    if (screenHeightDp != o.screenHeightDp) {
1847        return screenHeightDp < o.screenHeightDp ? -1 : 1;
1848    }
1849    if (screenWidth != o.screenWidth) {
1850        return screenWidth < o.screenWidth ? -1 : 1;
1851    }
1852    if (screenHeight != o.screenHeight) {
1853        return screenHeight < o.screenHeight ? -1 : 1;
1854    }
1855    if (density != o.density) {
1856        return density < o.density ? -1 : 1;
1857    }
1858    if (orientation != o.orientation) {
1859        return orientation < o.orientation ? -1 : 1;
1860    }
1861    if (touchscreen != o.touchscreen) {
1862        return touchscreen < o.touchscreen ? -1 : 1;
1863    }
1864    if (input != o.input) {
1865        return input < o.input ? -1 : 1;
1866    }
1867    if (screenLayout != o.screenLayout) {
1868        return screenLayout < o.screenLayout ? -1 : 1;
1869    }
1870    if (uiMode != o.uiMode) {
1871        return uiMode < o.uiMode ? -1 : 1;
1872    }
1873    if (version != o.version) {
1874        return version < o.version ? -1 : 1;
1875    }
1876    return 0;
1877}
1878
1879int ResTable_config::diff(const ResTable_config& o) const {
1880    int diffs = 0;
1881    if (mcc != o.mcc) diffs |= CONFIG_MCC;
1882    if (mnc != o.mnc) diffs |= CONFIG_MNC;
1883    if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1884    if (density != o.density) diffs |= CONFIG_DENSITY;
1885    if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1886    if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1887            diffs |= CONFIG_KEYBOARD_HIDDEN;
1888    if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1889    if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1890    if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1891    if (version != o.version) diffs |= CONFIG_VERSION;
1892    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1893    if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1894    if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1895    if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1896    if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1897
1898    const int diff = compareLocales(*this, o);
1899    if (diff) diffs |= CONFIG_LOCALE;
1900
1901    return diffs;
1902}
1903
1904int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const {
1905    if (locale || o.locale) {
1906        if (language[0] != o.language[0]) {
1907            if (!language[0]) return -1;
1908            if (!o.language[0]) return 1;
1909        }
1910
1911        if (country[0] != o.country[0]) {
1912            if (!country[0]) return -1;
1913            if (!o.country[0]) return 1;
1914        }
1915    }
1916
1917    // There isn't a well specified "importance" order between variants and
1918    // scripts. We can't easily tell whether, say "en-Latn-US" is more or less
1919    // specific than "en-US-POSIX".
1920    //
1921    // We therefore arbitrarily decide to give priority to variants over
1922    // scripts since it seems more useful to do so. We will consider
1923    // "en-US-POSIX" to be more specific than "en-Latn-US".
1924
1925    const int score = ((localeScript[0] != 0) ? 1 : 0) +
1926        ((localeVariant[0] != 0) ? 2 : 0);
1927
1928    const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) +
1929        ((o.localeVariant[0] != 0) ? 2 : 0);
1930
1931    return score - oScore;
1932
1933}
1934
1935bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1936    // The order of the following tests defines the importance of one
1937    // configuration parameter over another.  Those tests first are more
1938    // important, trumping any values in those following them.
1939    if (imsi || o.imsi) {
1940        if (mcc != o.mcc) {
1941            if (!mcc) return false;
1942            if (!o.mcc) return true;
1943        }
1944
1945        if (mnc != o.mnc) {
1946            if (!mnc) return false;
1947            if (!o.mnc) return true;
1948        }
1949    }
1950
1951    if (locale || o.locale) {
1952        const int diff = isLocaleMoreSpecificThan(o);
1953        if (diff < 0) {
1954            return false;
1955        }
1956
1957        if (diff > 0) {
1958            return true;
1959        }
1960    }
1961
1962    if (screenLayout || o.screenLayout) {
1963        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1964            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1965            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1966        }
1967    }
1968
1969    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1970        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1971            if (!smallestScreenWidthDp) return false;
1972            if (!o.smallestScreenWidthDp) return true;
1973        }
1974    }
1975
1976    if (screenSizeDp || o.screenSizeDp) {
1977        if (screenWidthDp != o.screenWidthDp) {
1978            if (!screenWidthDp) return false;
1979            if (!o.screenWidthDp) return true;
1980        }
1981
1982        if (screenHeightDp != o.screenHeightDp) {
1983            if (!screenHeightDp) return false;
1984            if (!o.screenHeightDp) return true;
1985        }
1986    }
1987
1988    if (screenLayout || o.screenLayout) {
1989        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1990            if (!(screenLayout & MASK_SCREENSIZE)) return false;
1991            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1992        }
1993        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1994            if (!(screenLayout & MASK_SCREENLONG)) return false;
1995            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1996        }
1997    }
1998
1999    if (orientation != o.orientation) {
2000        if (!orientation) return false;
2001        if (!o.orientation) return true;
2002    }
2003
2004    if (uiMode || o.uiMode) {
2005        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
2006            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
2007            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
2008        }
2009        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
2010            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
2011            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
2012        }
2013    }
2014
2015    // density is never 'more specific'
2016    // as the default just equals 160
2017
2018    if (touchscreen != o.touchscreen) {
2019        if (!touchscreen) return false;
2020        if (!o.touchscreen) return true;
2021    }
2022
2023    if (input || o.input) {
2024        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
2025            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
2026            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
2027        }
2028
2029        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
2030            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
2031            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
2032        }
2033
2034        if (keyboard != o.keyboard) {
2035            if (!keyboard) return false;
2036            if (!o.keyboard) return true;
2037        }
2038
2039        if (navigation != o.navigation) {
2040            if (!navigation) return false;
2041            if (!o.navigation) return true;
2042        }
2043    }
2044
2045    if (screenSize || o.screenSize) {
2046        if (screenWidth != o.screenWidth) {
2047            if (!screenWidth) return false;
2048            if (!o.screenWidth) return true;
2049        }
2050
2051        if (screenHeight != o.screenHeight) {
2052            if (!screenHeight) return false;
2053            if (!o.screenHeight) return true;
2054        }
2055    }
2056
2057    if (version || o.version) {
2058        if (sdkVersion != o.sdkVersion) {
2059            if (!sdkVersion) return false;
2060            if (!o.sdkVersion) return true;
2061        }
2062
2063        if (minorVersion != o.minorVersion) {
2064            if (!minorVersion) return false;
2065            if (!o.minorVersion) return true;
2066        }
2067    }
2068    return false;
2069}
2070
2071bool ResTable_config::isBetterThan(const ResTable_config& o,
2072        const ResTable_config* requested) const {
2073    if (requested) {
2074        if (imsi || o.imsi) {
2075            if ((mcc != o.mcc) && requested->mcc) {
2076                return (mcc);
2077            }
2078
2079            if ((mnc != o.mnc) && requested->mnc) {
2080                return (mnc);
2081            }
2082        }
2083
2084        if (locale || o.locale) {
2085            if ((language[0] != o.language[0]) && requested->language[0]) {
2086                return (language[0]);
2087            }
2088
2089            if ((country[0] != o.country[0]) && requested->country[0]) {
2090                return (country[0]);
2091            }
2092        }
2093
2094        if (localeScript[0] || o.localeScript[0]) {
2095            if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) {
2096                return localeScript[0];
2097            }
2098        }
2099
2100        if (localeVariant[0] || o.localeVariant[0]) {
2101            if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) {
2102                return localeVariant[0];
2103            }
2104        }
2105
2106        if (screenLayout || o.screenLayout) {
2107            if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
2108                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
2109                int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
2110                int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
2111                return (myLayoutDir > oLayoutDir);
2112            }
2113        }
2114
2115        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
2116            // The configuration closest to the actual size is best.
2117            // We assume that larger configs have already been filtered
2118            // out at this point.  That means we just want the largest one.
2119            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
2120                return smallestScreenWidthDp > o.smallestScreenWidthDp;
2121            }
2122        }
2123
2124        if (screenSizeDp || o.screenSizeDp) {
2125            // "Better" is based on the sum of the difference between both
2126            // width and height from the requested dimensions.  We are
2127            // assuming the invalid configs (with smaller dimens) have
2128            // already been filtered.  Note that if a particular dimension
2129            // is unspecified, we will end up with a large value (the
2130            // difference between 0 and the requested dimension), which is
2131            // good since we will prefer a config that has specified a
2132            // dimension value.
2133            int myDelta = 0, otherDelta = 0;
2134            if (requested->screenWidthDp) {
2135                myDelta += requested->screenWidthDp - screenWidthDp;
2136                otherDelta += requested->screenWidthDp - o.screenWidthDp;
2137            }
2138            if (requested->screenHeightDp) {
2139                myDelta += requested->screenHeightDp - screenHeightDp;
2140                otherDelta += requested->screenHeightDp - o.screenHeightDp;
2141            }
2142            //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
2143            //    screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
2144            //    requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
2145            if (myDelta != otherDelta) {
2146                return myDelta < otherDelta;
2147            }
2148        }
2149
2150        if (screenLayout || o.screenLayout) {
2151            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
2152                    && (requested->screenLayout & MASK_SCREENSIZE)) {
2153                // A little backwards compatibility here: undefined is
2154                // considered equivalent to normal.  But only if the
2155                // requested size is at least normal; otherwise, small
2156                // is better than the default.
2157                int mySL = (screenLayout & MASK_SCREENSIZE);
2158                int oSL = (o.screenLayout & MASK_SCREENSIZE);
2159                int fixedMySL = mySL;
2160                int fixedOSL = oSL;
2161                if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
2162                    if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
2163                    if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
2164                }
2165                // For screen size, the best match is the one that is
2166                // closest to the requested screen size, but not over
2167                // (the not over part is dealt with in match() below).
2168                if (fixedMySL == fixedOSL) {
2169                    // If the two are the same, but 'this' is actually
2170                    // undefined, then the other is really a better match.
2171                    if (mySL == 0) return false;
2172                    return true;
2173                }
2174                if (fixedMySL != fixedOSL) {
2175                    return fixedMySL > fixedOSL;
2176                }
2177            }
2178            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
2179                    && (requested->screenLayout & MASK_SCREENLONG)) {
2180                return (screenLayout & MASK_SCREENLONG);
2181            }
2182        }
2183
2184        if ((orientation != o.orientation) && requested->orientation) {
2185            return (orientation);
2186        }
2187
2188        if (uiMode || o.uiMode) {
2189            if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
2190                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
2191                return (uiMode & MASK_UI_MODE_TYPE);
2192            }
2193            if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
2194                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
2195                return (uiMode & MASK_UI_MODE_NIGHT);
2196            }
2197        }
2198
2199        if (screenType || o.screenType) {
2200            if (density != o.density) {
2201                // density is tough.  Any density is potentially useful
2202                // because the system will scale it.  Scaling down
2203                // is generally better than scaling up.
2204                // Default density counts as 160dpi (the system default)
2205                // TODO - remove 160 constants
2206                int h = (density?density:160);
2207                int l = (o.density?o.density:160);
2208                bool bImBigger = true;
2209                if (l > h) {
2210                    int t = h;
2211                    h = l;
2212                    l = t;
2213                    bImBigger = false;
2214                }
2215
2216                int reqValue = (requested->density?requested->density:160);
2217                if (reqValue >= h) {
2218                    // requested value higher than both l and h, give h
2219                    return bImBigger;
2220                }
2221                if (l >= reqValue) {
2222                    // requested value lower than both l and h, give l
2223                    return !bImBigger;
2224                }
2225                // saying that scaling down is 2x better than up
2226                if (((2 * l) - reqValue) * h > reqValue * reqValue) {
2227                    return !bImBigger;
2228                } else {
2229                    return bImBigger;
2230                }
2231            }
2232
2233            if ((touchscreen != o.touchscreen) && requested->touchscreen) {
2234                return (touchscreen);
2235            }
2236        }
2237
2238        if (input || o.input) {
2239            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
2240            const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
2241            if (keysHidden != oKeysHidden) {
2242                const int reqKeysHidden =
2243                        requested->inputFlags & MASK_KEYSHIDDEN;
2244                if (reqKeysHidden) {
2245
2246                    if (!keysHidden) return false;
2247                    if (!oKeysHidden) return true;
2248                    // For compatibility, we count KEYSHIDDEN_NO as being
2249                    // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
2250                    // these by making an exact match more specific.
2251                    if (reqKeysHidden == keysHidden) return true;
2252                    if (reqKeysHidden == oKeysHidden) return false;
2253                }
2254            }
2255
2256            const int navHidden = inputFlags & MASK_NAVHIDDEN;
2257            const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
2258            if (navHidden != oNavHidden) {
2259                const int reqNavHidden =
2260                        requested->inputFlags & MASK_NAVHIDDEN;
2261                if (reqNavHidden) {
2262
2263                    if (!navHidden) return false;
2264                    if (!oNavHidden) return true;
2265                }
2266            }
2267
2268            if ((keyboard != o.keyboard) && requested->keyboard) {
2269                return (keyboard);
2270            }
2271
2272            if ((navigation != o.navigation) && requested->navigation) {
2273                return (navigation);
2274            }
2275        }
2276
2277        if (screenSize || o.screenSize) {
2278            // "Better" is based on the sum of the difference between both
2279            // width and height from the requested dimensions.  We are
2280            // assuming the invalid configs (with smaller sizes) have
2281            // already been filtered.  Note that if a particular dimension
2282            // is unspecified, we will end up with a large value (the
2283            // difference between 0 and the requested dimension), which is
2284            // good since we will prefer a config that has specified a
2285            // size value.
2286            int myDelta = 0, otherDelta = 0;
2287            if (requested->screenWidth) {
2288                myDelta += requested->screenWidth - screenWidth;
2289                otherDelta += requested->screenWidth - o.screenWidth;
2290            }
2291            if (requested->screenHeight) {
2292                myDelta += requested->screenHeight - screenHeight;
2293                otherDelta += requested->screenHeight - o.screenHeight;
2294            }
2295            if (myDelta != otherDelta) {
2296                return myDelta < otherDelta;
2297            }
2298        }
2299
2300        if (version || o.version) {
2301            if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2302                return (sdkVersion > o.sdkVersion);
2303            }
2304
2305            if ((minorVersion != o.minorVersion) &&
2306                    requested->minorVersion) {
2307                return (minorVersion);
2308            }
2309        }
2310
2311        return false;
2312    }
2313    return isMoreSpecificThan(o);
2314}
2315
2316bool ResTable_config::match(const ResTable_config& settings) const {
2317    if (imsi != 0) {
2318        if (mcc != 0 && mcc != settings.mcc) {
2319            return false;
2320        }
2321        if (mnc != 0 && mnc != settings.mnc) {
2322            return false;
2323        }
2324    }
2325    if (locale != 0) {
2326        // Don't consider the script & variants when deciding matches.
2327        //
2328        // If we two configs differ only in their script or language, they
2329        // can be weeded out in the isMoreSpecificThan test.
2330        if (language[0] != 0
2331            && (language[0] != settings.language[0]
2332                || language[1] != settings.language[1])) {
2333            return false;
2334        }
2335
2336        if (country[0] != 0
2337            && (country[0] != settings.country[0]
2338                || country[1] != settings.country[1])) {
2339            return false;
2340        }
2341    }
2342
2343    if (screenConfig != 0) {
2344        const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2345        const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2346        if (layoutDir != 0 && layoutDir != setLayoutDir) {
2347            return false;
2348        }
2349
2350        const int screenSize = screenLayout&MASK_SCREENSIZE;
2351        const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2352        // Any screen sizes for larger screens than the setting do not
2353        // match.
2354        if (screenSize != 0 && screenSize > setScreenSize) {
2355            return false;
2356        }
2357
2358        const int screenLong = screenLayout&MASK_SCREENLONG;
2359        const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2360        if (screenLong != 0 && screenLong != setScreenLong) {
2361            return false;
2362        }
2363
2364        const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2365        const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2366        if (uiModeType != 0 && uiModeType != setUiModeType) {
2367            return false;
2368        }
2369
2370        const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2371        const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2372        if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2373            return false;
2374        }
2375
2376        if (smallestScreenWidthDp != 0
2377                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2378            return false;
2379        }
2380    }
2381    if (screenSizeDp != 0) {
2382        if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2383            //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2384            return false;
2385        }
2386        if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2387            //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2388            return false;
2389        }
2390    }
2391    if (screenType != 0) {
2392        if (orientation != 0 && orientation != settings.orientation) {
2393            return false;
2394        }
2395        // density always matches - we can scale it.  See isBetterThan
2396        if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2397            return false;
2398        }
2399    }
2400    if (input != 0) {
2401        const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2402        const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2403        if (keysHidden != 0 && keysHidden != setKeysHidden) {
2404            // For compatibility, we count a request for KEYSHIDDEN_NO as also
2405            // matching the more recent KEYSHIDDEN_SOFT.  Basically
2406            // KEYSHIDDEN_NO means there is some kind of keyboard available.
2407            //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2408            if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2409                //ALOGI("No match!");
2410                return false;
2411            }
2412        }
2413        const int navHidden = inputFlags&MASK_NAVHIDDEN;
2414        const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2415        if (navHidden != 0 && navHidden != setNavHidden) {
2416            return false;
2417        }
2418        if (keyboard != 0 && keyboard != settings.keyboard) {
2419            return false;
2420        }
2421        if (navigation != 0 && navigation != settings.navigation) {
2422            return false;
2423        }
2424    }
2425    if (screenSize != 0) {
2426        if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2427            return false;
2428        }
2429        if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2430            return false;
2431        }
2432    }
2433    if (version != 0) {
2434        if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2435            return false;
2436        }
2437        if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2438            return false;
2439        }
2440    }
2441    return true;
2442}
2443
2444void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const {
2445    memset(str, 0, RESTABLE_MAX_LOCALE_LEN);
2446
2447    // This represents the "any" locale value, which has traditionally been
2448    // represented by the empty string.
2449    if (!language[0] && !country[0]) {
2450        return;
2451    }
2452
2453    size_t charsWritten = 0;
2454    if (language[0]) {
2455        charsWritten += unpackLanguage(str);
2456    }
2457
2458    if (localeScript[0]) {
2459        if (charsWritten) {
2460            str[charsWritten++] = '-';
2461        }
2462        memcpy(str + charsWritten, localeScript, sizeof(localeScript));
2463        charsWritten += sizeof(localeScript);
2464    }
2465
2466    if (country[0]) {
2467        if (charsWritten) {
2468            str[charsWritten++] = '-';
2469        }
2470        charsWritten += unpackRegion(str + charsWritten);
2471    }
2472
2473    if (localeVariant[0]) {
2474        if (charsWritten) {
2475            str[charsWritten++] = '-';
2476        }
2477        memcpy(str + charsWritten, localeVariant, sizeof(localeVariant));
2478    }
2479}
2480
2481/* static */ inline bool assignLocaleComponent(ResTable_config* config,
2482        const char* start, size_t size) {
2483
2484  switch (size) {
2485       case 0:
2486           return false;
2487       case 2:
2488       case 3:
2489           config->language[0] ? config->packRegion(start) : config->packLanguage(start);
2490           break;
2491       case 4:
2492           config->localeScript[0] = toupper(start[0]);
2493           for (size_t i = 1; i < 4; ++i) {
2494               config->localeScript[i] = tolower(start[i]);
2495           }
2496           break;
2497       case 5:
2498       case 6:
2499       case 7:
2500       case 8:
2501           for (size_t i = 0; i < size; ++i) {
2502               config->localeVariant[i] = tolower(start[i]);
2503           }
2504           break;
2505       default:
2506           return false;
2507  }
2508
2509  return true;
2510}
2511
2512void ResTable_config::setBcp47Locale(const char* in) {
2513    locale = 0;
2514    memset(localeScript, 0, sizeof(localeScript));
2515    memset(localeVariant, 0, sizeof(localeVariant));
2516
2517    const char* separator = in;
2518    const char* start = in;
2519    while ((separator = strchr(start, '-')) != NULL) {
2520        const size_t size = separator - start;
2521        if (!assignLocaleComponent(this, start, size)) {
2522            fprintf(stderr, "Invalid BCP-47 locale string: %s", in);
2523        }
2524
2525        start = (separator + 1);
2526    }
2527
2528    const size_t size = in + strlen(in) - start;
2529    assignLocaleComponent(this, start, size);
2530}
2531
2532String8 ResTable_config::toString() const {
2533    String8 res;
2534
2535    if (mcc != 0) {
2536        if (res.size() > 0) res.append("-");
2537        res.appendFormat("mcc%d", dtohs(mcc));
2538    }
2539    if (mnc != 0) {
2540        if (res.size() > 0) res.append("-");
2541        res.appendFormat("mnc%d", dtohs(mnc));
2542    }
2543
2544    char localeStr[RESTABLE_MAX_LOCALE_LEN];
2545    getBcp47Locale(localeStr);
2546    if (strlen(localeStr) > 0) {
2547        if (res.size() > 0) res.append("-");
2548        res.append(localeStr);
2549    }
2550
2551    if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2552        if (res.size() > 0) res.append("-");
2553        switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2554            case ResTable_config::LAYOUTDIR_LTR:
2555                res.append("ldltr");
2556                break;
2557            case ResTable_config::LAYOUTDIR_RTL:
2558                res.append("ldrtl");
2559                break;
2560            default:
2561                res.appendFormat("layoutDir=%d",
2562                        dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2563                break;
2564        }
2565    }
2566    if (smallestScreenWidthDp != 0) {
2567        if (res.size() > 0) res.append("-");
2568        res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2569    }
2570    if (screenWidthDp != 0) {
2571        if (res.size() > 0) res.append("-");
2572        res.appendFormat("w%ddp", dtohs(screenWidthDp));
2573    }
2574    if (screenHeightDp != 0) {
2575        if (res.size() > 0) res.append("-");
2576        res.appendFormat("h%ddp", dtohs(screenHeightDp));
2577    }
2578    if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2579        if (res.size() > 0) res.append("-");
2580        switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2581            case ResTable_config::SCREENSIZE_SMALL:
2582                res.append("small");
2583                break;
2584            case ResTable_config::SCREENSIZE_NORMAL:
2585                res.append("normal");
2586                break;
2587            case ResTable_config::SCREENSIZE_LARGE:
2588                res.append("large");
2589                break;
2590            case ResTable_config::SCREENSIZE_XLARGE:
2591                res.append("xlarge");
2592                break;
2593            default:
2594                res.appendFormat("screenLayoutSize=%d",
2595                        dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2596                break;
2597        }
2598    }
2599    if ((screenLayout&MASK_SCREENLONG) != 0) {
2600        if (res.size() > 0) res.append("-");
2601        switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2602            case ResTable_config::SCREENLONG_NO:
2603                res.append("notlong");
2604                break;
2605            case ResTable_config::SCREENLONG_YES:
2606                res.append("long");
2607                break;
2608            default:
2609                res.appendFormat("screenLayoutLong=%d",
2610                        dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2611                break;
2612        }
2613    }
2614    if (orientation != ORIENTATION_ANY) {
2615        if (res.size() > 0) res.append("-");
2616        switch (orientation) {
2617            case ResTable_config::ORIENTATION_PORT:
2618                res.append("port");
2619                break;
2620            case ResTable_config::ORIENTATION_LAND:
2621                res.append("land");
2622                break;
2623            case ResTable_config::ORIENTATION_SQUARE:
2624                res.append("square");
2625                break;
2626            default:
2627                res.appendFormat("orientation=%d", dtohs(orientation));
2628                break;
2629        }
2630    }
2631    if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2632        if (res.size() > 0) res.append("-");
2633        switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2634            case ResTable_config::UI_MODE_TYPE_DESK:
2635                res.append("desk");
2636                break;
2637            case ResTable_config::UI_MODE_TYPE_CAR:
2638                res.append("car");
2639                break;
2640            case ResTable_config::UI_MODE_TYPE_TELEVISION:
2641                res.append("television");
2642                break;
2643            case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2644                res.append("appliance");
2645                break;
2646            case ResTable_config::UI_MODE_TYPE_WATCH:
2647                res.append("watch");
2648                break;
2649            default:
2650                res.appendFormat("uiModeType=%d",
2651                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2652                break;
2653        }
2654    }
2655    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2656        if (res.size() > 0) res.append("-");
2657        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2658            case ResTable_config::UI_MODE_NIGHT_NO:
2659                res.append("notnight");
2660                break;
2661            case ResTable_config::UI_MODE_NIGHT_YES:
2662                res.append("night");
2663                break;
2664            default:
2665                res.appendFormat("uiModeNight=%d",
2666                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2667                break;
2668        }
2669    }
2670    if (density != DENSITY_DEFAULT) {
2671        if (res.size() > 0) res.append("-");
2672        switch (density) {
2673            case ResTable_config::DENSITY_LOW:
2674                res.append("ldpi");
2675                break;
2676            case ResTable_config::DENSITY_MEDIUM:
2677                res.append("mdpi");
2678                break;
2679            case ResTable_config::DENSITY_TV:
2680                res.append("tvdpi");
2681                break;
2682            case ResTable_config::DENSITY_HIGH:
2683                res.append("hdpi");
2684                break;
2685            case ResTable_config::DENSITY_XHIGH:
2686                res.append("xhdpi");
2687                break;
2688            case ResTable_config::DENSITY_XXHIGH:
2689                res.append("xxhdpi");
2690                break;
2691            case ResTable_config::DENSITY_NONE:
2692                res.append("nodpi");
2693                break;
2694            default:
2695                res.appendFormat("%ddpi", dtohs(density));
2696                break;
2697        }
2698    }
2699    if (touchscreen != TOUCHSCREEN_ANY) {
2700        if (res.size() > 0) res.append("-");
2701        switch (touchscreen) {
2702            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2703                res.append("notouch");
2704                break;
2705            case ResTable_config::TOUCHSCREEN_FINGER:
2706                res.append("finger");
2707                break;
2708            case ResTable_config::TOUCHSCREEN_STYLUS:
2709                res.append("stylus");
2710                break;
2711            default:
2712                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2713                break;
2714        }
2715    }
2716    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2717        if (res.size() > 0) res.append("-");
2718        switch (inputFlags&MASK_KEYSHIDDEN) {
2719            case ResTable_config::KEYSHIDDEN_NO:
2720                res.append("keysexposed");
2721                break;
2722            case ResTable_config::KEYSHIDDEN_YES:
2723                res.append("keyshidden");
2724                break;
2725            case ResTable_config::KEYSHIDDEN_SOFT:
2726                res.append("keyssoft");
2727                break;
2728        }
2729    }
2730    if (keyboard != KEYBOARD_ANY) {
2731        if (res.size() > 0) res.append("-");
2732        switch (keyboard) {
2733            case ResTable_config::KEYBOARD_NOKEYS:
2734                res.append("nokeys");
2735                break;
2736            case ResTable_config::KEYBOARD_QWERTY:
2737                res.append("qwerty");
2738                break;
2739            case ResTable_config::KEYBOARD_12KEY:
2740                res.append("12key");
2741                break;
2742            default:
2743                res.appendFormat("keyboard=%d", dtohs(keyboard));
2744                break;
2745        }
2746    }
2747    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2748        if (res.size() > 0) res.append("-");
2749        switch (inputFlags&MASK_NAVHIDDEN) {
2750            case ResTable_config::NAVHIDDEN_NO:
2751                res.append("navexposed");
2752                break;
2753            case ResTable_config::NAVHIDDEN_YES:
2754                res.append("navhidden");
2755                break;
2756            default:
2757                res.appendFormat("inputFlagsNavHidden=%d",
2758                        dtohs(inputFlags&MASK_NAVHIDDEN));
2759                break;
2760        }
2761    }
2762    if (navigation != NAVIGATION_ANY) {
2763        if (res.size() > 0) res.append("-");
2764        switch (navigation) {
2765            case ResTable_config::NAVIGATION_NONAV:
2766                res.append("nonav");
2767                break;
2768            case ResTable_config::NAVIGATION_DPAD:
2769                res.append("dpad");
2770                break;
2771            case ResTable_config::NAVIGATION_TRACKBALL:
2772                res.append("trackball");
2773                break;
2774            case ResTable_config::NAVIGATION_WHEEL:
2775                res.append("wheel");
2776                break;
2777            default:
2778                res.appendFormat("navigation=%d", dtohs(navigation));
2779                break;
2780        }
2781    }
2782    if (screenSize != 0) {
2783        if (res.size() > 0) res.append("-");
2784        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2785    }
2786    if (version != 0) {
2787        if (res.size() > 0) res.append("-");
2788        res.appendFormat("v%d", dtohs(sdkVersion));
2789        if (minorVersion != 0) {
2790            res.appendFormat(".%d", dtohs(minorVersion));
2791        }
2792    }
2793
2794    return res;
2795}
2796
2797// --------------------------------------------------------------------
2798// --------------------------------------------------------------------
2799// --------------------------------------------------------------------
2800
2801struct ResTable::Header
2802{
2803    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2804        resourceIDMap(NULL), resourceIDMapSize(0) { }
2805
2806    ~Header()
2807    {
2808        free(resourceIDMap);
2809    }
2810
2811    const ResTable* const           owner;
2812    void*                           ownedData;
2813    const ResTable_header*          header;
2814    size_t                          size;
2815    const uint8_t*                  dataEnd;
2816    size_t                          index;
2817    int32_t                         cookie;
2818
2819    ResStringPool                   values;
2820    uint32_t*                       resourceIDMap;
2821    size_t                          resourceIDMapSize;
2822};
2823
2824struct ResTable::Entry {
2825    ResTable_config config;
2826    const ResTable_entry* entry;
2827    const ResTable_type* type;
2828    uint32_t specFlags;
2829    const Package* package;
2830
2831    StringPoolRef typeStr;
2832    StringPoolRef keyStr;
2833};
2834
2835struct ResTable::Type
2836{
2837    Type(const Header* _header, const Package* _package, size_t count)
2838        : header(_header), package(_package), entryCount(count),
2839          typeSpec(NULL), typeSpecFlags(NULL) { }
2840    const Header* const             header;
2841    const Package* const            package;
2842    const size_t                    entryCount;
2843    const ResTable_typeSpec*        typeSpec;
2844    const uint32_t*                 typeSpecFlags;
2845    IdmapEntries                    idmapEntries;
2846    Vector<const ResTable_type*>    configs;
2847};
2848
2849struct ResTable::Package
2850{
2851    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2852        : owner(_owner), header(_header), package(_package), typeIdOffset(0) {
2853        if (dtohs(package->header.headerSize) == sizeof(package)) {
2854            // The package structure is the same size as the definition.
2855            // This means it contains the typeIdOffset field.
2856            typeIdOffset = package->typeIdOffset;
2857        }
2858    }
2859
2860    const ResTable* const           owner;
2861    const Header* const             header;
2862    const ResTable_package* const   package;
2863
2864    ResStringPool                   typeStrings;
2865    ResStringPool                   keyStrings;
2866
2867    size_t                          typeIdOffset;
2868};
2869
2870// A group of objects describing a particular resource package.
2871// The first in 'package' is always the root object (from the resource
2872// table that defined the package); the ones after are skins on top of it.
2873struct ResTable::PackageGroup
2874{
2875    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2876        : owner(_owner)
2877        , name(_name)
2878        , id(_id)
2879        , largestTypeId(0)
2880        , bags(NULL)
2881        , dynamicRefTable(static_cast<uint8_t>(_id))
2882    { }
2883
2884    ~PackageGroup() {
2885        clearBagCache();
2886        const size_t numTypes = types.size();
2887        for (size_t i = 0; i < numTypes; i++) {
2888            const TypeList& typeList = types[i];
2889            const size_t numInnerTypes = typeList.size();
2890            for (size_t j = 0; j < numInnerTypes; j++) {
2891                if (typeList[j]->package->owner == owner) {
2892                    delete typeList[j];
2893                }
2894            }
2895        }
2896
2897        const size_t N = packages.size();
2898        for (size_t i=0; i<N; i++) {
2899            Package* pkg = packages[i];
2900            if (pkg->owner == owner) {
2901                delete pkg;
2902            }
2903        }
2904    }
2905
2906    void clearBagCache() {
2907        if (bags) {
2908            TABLE_NOISY(printf("bags=%p\n", bags));
2909            for (size_t i = 0; i < bags->size(); i++) {
2910                TABLE_NOISY(printf("type=%d\n", i));
2911                const TypeList& typeList = types[i];
2912                if (typeList.isEmpty()) {
2913                    bag_set** typeBags = bags->get(i);
2914                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2915                    if (typeBags) {
2916                        const size_t N = typeList[0]->entryCount;
2917                        TABLE_NOISY(printf("type->entryCount=%x\n", N));
2918                        for (size_t j=0; j<N; j++) {
2919                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2920                                free(typeBags[j]);
2921                        }
2922                        free(typeBags);
2923                    }
2924                }
2925            }
2926            delete bags;
2927            bags = NULL;
2928        }
2929    }
2930
2931    ssize_t findType16(const char16_t* type, size_t len) const {
2932        const size_t N = packages.size();
2933        for (size_t i = 0; i < N; i++) {
2934            ssize_t index = packages[i]->typeStrings.indexOfString(type, len);
2935            if (index >= 0) {
2936                return index + packages[i]->typeIdOffset;
2937            }
2938        }
2939        return -1;
2940    }
2941
2942    const ResTable* const           owner;
2943    String16 const                  name;
2944    uint32_t const                  id;
2945
2946    // This is mainly used to keep track of the loaded packages
2947    // and to clean them up properly. Accessing resources happens from
2948    // the 'types' array.
2949    Vector<Package*>                packages;
2950
2951    ByteBucketArray<TypeList>       types;
2952
2953    uint8_t                         largestTypeId;
2954
2955    // Computed attribute bags, first indexed by the type and second
2956    // by the entry in that type.
2957    ByteBucketArray<bag_set**>*     bags;
2958
2959    // The table mapping dynamic references to resolved references for
2960    // this package group.
2961    // TODO: We may be able to support dynamic references in overlays
2962    // by having these tables in a per-package scope rather than
2963    // per-package-group.
2964    DynamicRefTable                 dynamicRefTable;
2965};
2966
2967struct ResTable::bag_set
2968{
2969    size_t numAttrs;    // number in array
2970    size_t availAttrs;  // total space in array
2971    uint32_t typeSpecFlags;
2972    // Followed by 'numAttr' bag_entry structures.
2973};
2974
2975ResTable::Theme::Theme(const ResTable& table)
2976    : mTable(table)
2977{
2978    memset(mPackages, 0, sizeof(mPackages));
2979}
2980
2981ResTable::Theme::~Theme()
2982{
2983    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2984        package_info* pi = mPackages[i];
2985        if (pi != NULL) {
2986            free_package(pi);
2987        }
2988    }
2989}
2990
2991void ResTable::Theme::free_package(package_info* pi)
2992{
2993    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
2994        theme_entry* te = pi->types[j].entries;
2995        if (te != NULL) {
2996            free(te);
2997        }
2998    }
2999    free(pi);
3000}
3001
3002ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
3003{
3004    package_info* newpi = (package_info*)malloc(sizeof(package_info));
3005    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3006        size_t cnt = pi->types[j].numEntries;
3007        newpi->types[j].numEntries = cnt;
3008        theme_entry* te = pi->types[j].entries;
3009        if (te != NULL) {
3010            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3011            newpi->types[j].entries = newte;
3012            memcpy(newte, te, cnt*sizeof(theme_entry));
3013        } else {
3014            newpi->types[j].entries = NULL;
3015        }
3016    }
3017    return newpi;
3018}
3019
3020status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
3021{
3022    const bag_entry* bag;
3023    uint32_t bagTypeSpecFlags = 0;
3024    mTable.lock();
3025    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
3026    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
3027    if (N < 0) {
3028        mTable.unlock();
3029        return N;
3030    }
3031
3032    uint32_t curPackage = 0xffffffff;
3033    ssize_t curPackageIndex = 0;
3034    package_info* curPI = NULL;
3035    uint32_t curType = 0xffffffff;
3036    size_t numEntries = 0;
3037    theme_entry* curEntries = NULL;
3038
3039    const bag_entry* end = bag + N;
3040    while (bag < end) {
3041        const uint32_t attrRes = bag->map.name.ident;
3042        const uint32_t p = Res_GETPACKAGE(attrRes);
3043        const uint32_t t = Res_GETTYPE(attrRes);
3044        const uint32_t e = Res_GETENTRY(attrRes);
3045
3046        if (curPackage != p) {
3047            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
3048            if (pidx < 0) {
3049                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
3050                bag++;
3051                continue;
3052            }
3053            curPackage = p;
3054            curPackageIndex = pidx;
3055            curPI = mPackages[pidx];
3056            if (curPI == NULL) {
3057                PackageGroup* const grp = mTable.mPackageGroups[pidx];
3058                curPI = (package_info*)malloc(sizeof(package_info));
3059                memset(curPI, 0, sizeof(*curPI));
3060                mPackages[pidx] = curPI;
3061            }
3062            curType = 0xffffffff;
3063        }
3064        if (curType != t) {
3065            if (t > Res_MAXTYPE) {
3066                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
3067                bag++;
3068                continue;
3069            }
3070            curType = t;
3071            curEntries = curPI->types[t].entries;
3072            if (curEntries == NULL) {
3073                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
3074                const TypeList& typeList = grp->types[t];
3075                int cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount;
3076                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3077                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
3078                curPI->types[t].numEntries = cnt;
3079                curPI->types[t].entries = curEntries;
3080            }
3081            numEntries = curPI->types[t].numEntries;
3082        }
3083        if (e >= numEntries) {
3084            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
3085            bag++;
3086            continue;
3087        }
3088        theme_entry* curEntry = curEntries + e;
3089        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
3090                attrRes, bag->map.value.dataType, bag->map.value.data,
3091                curEntry->value.dataType));
3092        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
3093            curEntry->stringBlock = bag->stringBlock;
3094            curEntry->typeSpecFlags |= bagTypeSpecFlags;
3095            curEntry->value = bag->map.value;
3096        }
3097
3098        bag++;
3099    }
3100
3101    mTable.unlock();
3102
3103    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
3104    //dumpToLog();
3105
3106    return NO_ERROR;
3107}
3108
3109status_t ResTable::Theme::setTo(const Theme& other)
3110{
3111    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
3112    //dumpToLog();
3113    //other.dumpToLog();
3114
3115    if (&mTable == &other.mTable) {
3116        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3117            if (mPackages[i] != NULL) {
3118                free_package(mPackages[i]);
3119            }
3120            if (other.mPackages[i] != NULL) {
3121                mPackages[i] = copy_package(other.mPackages[i]);
3122            } else {
3123                mPackages[i] = NULL;
3124            }
3125        }
3126    } else {
3127        // @todo: need to really implement this, not just copy
3128        // the system package (which is still wrong because it isn't
3129        // fixing up resource references).
3130        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3131            if (mPackages[i] != NULL) {
3132                free_package(mPackages[i]);
3133            }
3134            if (i == 0 && other.mPackages[i] != NULL) {
3135                mPackages[i] = copy_package(other.mPackages[i]);
3136            } else {
3137                mPackages[i] = NULL;
3138            }
3139        }
3140    }
3141
3142    //ALOGI("Final theme:");
3143    //dumpToLog();
3144
3145    return NO_ERROR;
3146}
3147
3148ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
3149        uint32_t* outTypeSpecFlags) const
3150{
3151    int cnt = 20;
3152
3153    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
3154
3155    do {
3156        const ssize_t p = mTable.getResourcePackageIndex(resID);
3157        const uint32_t t = Res_GETTYPE(resID);
3158        const uint32_t e = Res_GETENTRY(resID);
3159
3160        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
3161
3162        if (p >= 0) {
3163            const package_info* const pi = mPackages[p];
3164            TABLE_THEME(ALOGI("Found package: %p", pi));
3165            if (pi != NULL) {
3166                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, Res_MAXTYPE + 1));
3167                if (t <= Res_MAXTYPE) {
3168                    const type_info& ti = pi->types[t];
3169                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
3170                    if (e < ti.numEntries) {
3171                        const theme_entry& te = ti.entries[e];
3172                        if (outTypeSpecFlags != NULL) {
3173                            *outTypeSpecFlags |= te.typeSpecFlags;
3174                        }
3175                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
3176                                te.value.dataType, te.value.data));
3177                        const uint8_t type = te.value.dataType;
3178                        if (type == Res_value::TYPE_ATTRIBUTE) {
3179                            if (cnt > 0) {
3180                                cnt--;
3181                                resID = te.value.data;
3182                                continue;
3183                            }
3184                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
3185                            return BAD_INDEX;
3186                        } else if (type != Res_value::TYPE_NULL) {
3187                            *outValue = te.value;
3188                            return te.stringBlock;
3189                        }
3190                        return BAD_INDEX;
3191                    }
3192                }
3193            }
3194        }
3195        break;
3196
3197    } while (true);
3198
3199    return BAD_INDEX;
3200}
3201
3202ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
3203        ssize_t blockIndex, uint32_t* outLastRef,
3204        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
3205{
3206    //printf("Resolving type=0x%x\n", inOutValue->dataType);
3207    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
3208        uint32_t newTypeSpecFlags;
3209        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
3210        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
3211             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
3212        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
3213        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
3214        if (blockIndex < 0) {
3215            return blockIndex;
3216        }
3217    }
3218    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
3219            inoutTypeSpecFlags, inoutConfig);
3220}
3221
3222void ResTable::Theme::dumpToLog() const
3223{
3224    ALOGI("Theme %p:\n", this);
3225    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3226        package_info* pi = mPackages[i];
3227        if (pi == NULL) continue;
3228
3229        ALOGI("  Package #0x%02x:\n", (int)(i + 1));
3230        for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3231            type_info& ti = pi->types[j];
3232            if (ti.numEntries == 0) continue;
3233            ALOGI("    Type #0x%02x:\n", (int)(j + 1));
3234            for (size_t k = 0; k < ti.numEntries; k++) {
3235                const theme_entry& te = ti.entries[k];
3236                if (te.value.dataType == Res_value::TYPE_NULL) continue;
3237                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
3238                     (int)Res_MAKEID(i, j, k),
3239                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
3240            }
3241        }
3242    }
3243}
3244
3245ResTable::ResTable()
3246    : mError(NO_INIT), mNextPackageId(2)
3247{
3248    memset(&mParams, 0, sizeof(mParams));
3249    memset(mPackageMap, 0, sizeof(mPackageMap));
3250    //ALOGI("Creating ResTable %p\n", this);
3251}
3252
3253ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData)
3254    : mError(NO_INIT), mNextPackageId(2)
3255{
3256    memset(&mParams, 0, sizeof(mParams));
3257    memset(mPackageMap, 0, sizeof(mPackageMap));
3258    addInternal(data, size, NULL, 0, cookie, copyData);
3259    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
3260    //ALOGI("Creating ResTable %p\n", this);
3261}
3262
3263ResTable::~ResTable()
3264{
3265    //ALOGI("Destroying ResTable in %p\n", this);
3266    uninit();
3267}
3268
3269inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
3270{
3271    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
3272}
3273
3274status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) {
3275    return addInternal(data, size, NULL, 0, cookie, copyData);
3276}
3277
3278status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize,
3279        const int32_t cookie, bool copyData) {
3280    return addInternal(data, size, idmapData, idmapDataSize, cookie, copyData);
3281}
3282
3283status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) {
3284    const void* data = asset->getBuffer(true);
3285    if (data == NULL) {
3286        ALOGW("Unable to get buffer of resource asset file");
3287        return UNKNOWN_ERROR;
3288    }
3289
3290    return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, 0, cookie, copyData);
3291}
3292
3293status_t ResTable::add(Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData) {
3294    const void* data = asset->getBuffer(true);
3295    if (data == NULL) {
3296        ALOGW("Unable to get buffer of resource asset file");
3297        return UNKNOWN_ERROR;
3298    }
3299
3300    size_t idmapSize = 0;
3301    const void* idmapData = NULL;
3302    if (idmapAsset != NULL) {
3303        idmapData = idmapAsset->getBuffer(true);
3304        if (idmapData == NULL) {
3305            ALOGW("Unable to get buffer of idmap asset file");
3306            return UNKNOWN_ERROR;
3307        }
3308        idmapSize = static_cast<size_t>(idmapAsset->getLength());
3309    }
3310
3311    return addInternal(data, static_cast<size_t>(asset->getLength()),
3312            idmapData, idmapSize, cookie, copyData);
3313}
3314
3315status_t ResTable::add(ResTable* src)
3316{
3317    mError = src->mError;
3318
3319    for (size_t i=0; i<src->mHeaders.size(); i++) {
3320        mHeaders.add(src->mHeaders[i]);
3321    }
3322
3323    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
3324        PackageGroup* srcPg = src->mPackageGroups[i];
3325        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
3326        for (size_t j=0; j<srcPg->packages.size(); j++) {
3327            pg->packages.add(srcPg->packages[j]);
3328        }
3329
3330        for (size_t j = 0; j < srcPg->types.size(); j++) {
3331            if (srcPg->types[j].isEmpty()) {
3332                continue;
3333            }
3334
3335            TypeList& typeList = pg->types.editItemAt(j);
3336            typeList.appendVector(srcPg->types[j]);
3337        }
3338        pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId);
3339        mPackageGroups.add(pg);
3340    }
3341
3342    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
3343
3344    return mError;
3345}
3346
3347status_t ResTable::addEmpty(const int32_t cookie) {
3348    Header* header = new Header(this);
3349    header->index = mHeaders.size();
3350    header->cookie = cookie;
3351    header->values.setToEmpty();
3352    header->ownedData = calloc(1, sizeof(ResTable_header));
3353
3354    ResTable_header* resHeader = (ResTable_header*) header->ownedData;
3355    resHeader->header.type = RES_TABLE_TYPE;
3356    resHeader->header.headerSize = sizeof(ResTable_header);
3357    resHeader->header.size = sizeof(ResTable_header);
3358
3359    header->header = (const ResTable_header*) resHeader;
3360    mHeaders.add(header);
3361    return (mError=NO_ERROR);
3362}
3363
3364status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize,
3365        const int32_t cookie, bool copyData)
3366{
3367    if (!data) {
3368        return NO_ERROR;
3369    }
3370
3371    Header* header = new Header(this);
3372    header->index = mHeaders.size();
3373    header->cookie = cookie;
3374    if (idmapData != NULL) {
3375        header->resourceIDMap = (uint32_t*) malloc(idmapDataSize);
3376        if (header->resourceIDMap == NULL) {
3377            delete header;
3378            return (mError = NO_MEMORY);
3379        }
3380        memcpy(header->resourceIDMap, idmapData, idmapDataSize);
3381        header->resourceIDMapSize = idmapDataSize;
3382    }
3383    mHeaders.add(header);
3384
3385    const bool notDeviceEndian = htods(0xf0) != 0xf0;
3386
3387    LOAD_TABLE_NOISY(
3388        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%d, copy=%d "
3389             "idmap=%p\n", data, dataSize, cookie, copyData, idmap));
3390
3391    if (copyData || notDeviceEndian) {
3392        header->ownedData = malloc(dataSize);
3393        if (header->ownedData == NULL) {
3394            return (mError=NO_MEMORY);
3395        }
3396        memcpy(header->ownedData, data, dataSize);
3397        data = header->ownedData;
3398    }
3399
3400    header->header = (const ResTable_header*)data;
3401    header->size = dtohl(header->header->header.size);
3402    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
3403    //     dtohl(header->header->header.size), header->header->header.size);
3404    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
3405    if (dtohs(header->header->header.headerSize) > header->size
3406            || header->size > dataSize) {
3407        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
3408             (int)dtohs(header->header->header.headerSize),
3409             (int)header->size, (int)dataSize);
3410        return (mError=BAD_TYPE);
3411    }
3412    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
3413        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
3414             (int)dtohs(header->header->header.headerSize),
3415             (int)header->size);
3416        return (mError=BAD_TYPE);
3417    }
3418    header->dataEnd = ((const uint8_t*)header->header) + header->size;
3419
3420    // Iterate through all chunks.
3421    size_t curPackage = 0;
3422
3423    const ResChunk_header* chunk =
3424        (const ResChunk_header*)(((const uint8_t*)header->header)
3425                                 + dtohs(header->header->header.headerSize));
3426    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
3427           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
3428        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
3429        if (err != NO_ERROR) {
3430            return (mError=err);
3431        }
3432        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
3433                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
3434                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3435        const size_t csize = dtohl(chunk->size);
3436        const uint16_t ctype = dtohs(chunk->type);
3437        if (ctype == RES_STRING_POOL_TYPE) {
3438            if (header->values.getError() != NO_ERROR) {
3439                // Only use the first string chunk; ignore any others that
3440                // may appear.
3441                status_t err = header->values.setTo(chunk, csize);
3442                if (err != NO_ERROR) {
3443                    return (mError=err);
3444                }
3445            } else {
3446                ALOGW("Multiple string chunks found in resource table.");
3447            }
3448        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3449            if (curPackage >= dtohl(header->header->packageCount)) {
3450                ALOGW("More package chunks were found than the %d declared in the header.",
3451                     dtohl(header->header->packageCount));
3452                return (mError=BAD_TYPE);
3453            }
3454
3455            if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) {
3456                return mError;
3457            }
3458            curPackage++;
3459        } else {
3460            ALOGW("Unknown chunk type 0x%x in table at %p.\n",
3461                 ctype,
3462                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3463        }
3464        chunk = (const ResChunk_header*)
3465            (((const uint8_t*)chunk) + csize);
3466    }
3467
3468    if (curPackage < dtohl(header->header->packageCount)) {
3469        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3470             (int)curPackage, dtohl(header->header->packageCount));
3471        return (mError=BAD_TYPE);
3472    }
3473    mError = header->values.getError();
3474    if (mError != NO_ERROR) {
3475        ALOGW("No string values found in resource table!");
3476    }
3477
3478    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3479    return mError;
3480}
3481
3482status_t ResTable::getError() const
3483{
3484    return mError;
3485}
3486
3487void ResTable::uninit()
3488{
3489    mError = NO_INIT;
3490    size_t N = mPackageGroups.size();
3491    for (size_t i=0; i<N; i++) {
3492        PackageGroup* g = mPackageGroups[i];
3493        delete g;
3494    }
3495    N = mHeaders.size();
3496    for (size_t i=0; i<N; i++) {
3497        Header* header = mHeaders[i];
3498        if (header->owner == this) {
3499            if (header->ownedData) {
3500                free(header->ownedData);
3501            }
3502            delete header;
3503        }
3504    }
3505
3506    mPackageGroups.clear();
3507    mHeaders.clear();
3508}
3509
3510bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3511{
3512    if (mError != NO_ERROR) {
3513        return false;
3514    }
3515
3516    const ssize_t p = getResourcePackageIndex(resID);
3517    const int t = Res_GETTYPE(resID);
3518    const int e = Res_GETENTRY(resID);
3519
3520    if (p < 0) {
3521        if (Res_GETPACKAGE(resID)+1 == 0) {
3522            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3523        } else {
3524            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3525        }
3526        return false;
3527    }
3528    if (t < 0) {
3529        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3530        return false;
3531    }
3532
3533    const PackageGroup* const grp = mPackageGroups[p];
3534    if (grp == NULL) {
3535        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3536        return false;
3537    }
3538
3539    Entry entry;
3540    status_t err = getEntry(grp, t, e, NULL, &entry);
3541    if (err != NO_ERROR) {
3542        return false;
3543    }
3544
3545    outName->package = grp->name.string();
3546    outName->packageLen = grp->name.size();
3547    if (allowUtf8) {
3548        outName->type8 = entry.typeStr.string8(&outName->typeLen);
3549        outName->name8 = entry.keyStr.string8(&outName->nameLen);
3550    } else {
3551        outName->type8 = NULL;
3552        outName->name8 = NULL;
3553    }
3554    if (outName->type8 == NULL) {
3555        outName->type = entry.typeStr.string16(&outName->typeLen);
3556        // If we have a bad index for some reason, we should abort.
3557        if (outName->type == NULL) {
3558            return false;
3559        }
3560    }
3561    if (outName->name8 == NULL) {
3562        outName->name = entry.keyStr.string16(&outName->nameLen);
3563        // If we have a bad index for some reason, we should abort.
3564        if (outName->name == NULL) {
3565            return false;
3566        }
3567    }
3568
3569    return true;
3570}
3571
3572ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3573        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3574{
3575    if (mError != NO_ERROR) {
3576        return mError;
3577    }
3578
3579    const ssize_t p = getResourcePackageIndex(resID);
3580    const int t = Res_GETTYPE(resID);
3581    const int e = Res_GETENTRY(resID);
3582
3583    if (p < 0) {
3584        if (Res_GETPACKAGE(resID)+1 == 0) {
3585            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3586        } else {
3587            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3588        }
3589        return BAD_INDEX;
3590    }
3591    if (t < 0) {
3592        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3593        return BAD_INDEX;
3594    }
3595
3596    const PackageGroup* const grp = mPackageGroups[p];
3597    if (grp == NULL) {
3598        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3599        return BAD_INDEX;
3600    }
3601
3602    // Allow overriding density
3603    ResTable_config desiredConfig = mParams;
3604    if (density > 0) {
3605        desiredConfig.density = density;
3606    }
3607
3608    Entry entry;
3609    status_t err = getEntry(grp, t, e, &desiredConfig, &entry);
3610    if (err != NO_ERROR) {
3611        ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n",
3612                resID, t, e, err);
3613        return err;
3614    }
3615
3616    if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) {
3617        if (!mayBeBag) {
3618            ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID);
3619        }
3620        return BAD_VALUE;
3621    }
3622
3623    const Res_value* value = reinterpret_cast<const Res_value*>(
3624            reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size);
3625
3626    outValue->size = dtohs(value->size);
3627    outValue->res0 = value->res0;
3628    outValue->dataType = value->dataType;
3629    outValue->data = dtohl(value->data);
3630
3631    // The reference may be pointing to a resource in a shared library. These
3632    // references have build-time generated package IDs. These ids may not match
3633    // the actual package IDs of the corresponding packages in this ResTable.
3634    // We need to fix the package ID based on a mapping.
3635    if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) {
3636        ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data);
3637        return BAD_VALUE;
3638    }
3639
3640    TABLE_NOISY(size_t len;
3641          printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3642                 entry.package->header->index,
3643                 outValue->dataType,
3644                 outValue->dataType == Res_value::TYPE_STRING
3645                 ? String8(entry.package->header->values.stringAt(
3646                     outValue->data, &len)).string()
3647                 : "",
3648                 outValue->data));
3649
3650    if (outSpecFlags != NULL) {
3651        *outSpecFlags = entry.specFlags;
3652    }
3653
3654    if (outConfig != NULL) {
3655        *outConfig = entry.config;
3656    }
3657
3658    return entry.package->header->index;
3659}
3660
3661ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3662        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3663        ResTable_config* outConfig) const
3664{
3665    int count=0;
3666    while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE
3667            && value->data != 0 && count < 20) {
3668        if (outLastRef) *outLastRef = value->data;
3669        uint32_t lastRef = value->data;
3670        uint32_t newFlags = 0;
3671        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3672                outConfig);
3673        if (newIndex == BAD_INDEX) {
3674            return BAD_INDEX;
3675        }
3676        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3677             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3678        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3679        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3680        if (newIndex < 0) {
3681            // This can fail if the resource being referenced is a style...
3682            // in this case, just return the reference, and expect the
3683            // caller to deal with.
3684            return blockIndex;
3685        }
3686        blockIndex = newIndex;
3687        count++;
3688    }
3689    return blockIndex;
3690}
3691
3692const char16_t* ResTable::valueToString(
3693    const Res_value* value, size_t stringBlock,
3694    char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen)
3695{
3696    if (!value) {
3697        return NULL;
3698    }
3699    if (value->dataType == value->TYPE_STRING) {
3700        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3701    }
3702    // XXX do int to string conversions.
3703    return NULL;
3704}
3705
3706ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3707{
3708    mLock.lock();
3709    ssize_t err = getBagLocked(resID, outBag);
3710    if (err < NO_ERROR) {
3711        //printf("*** get failed!  unlocking\n");
3712        mLock.unlock();
3713    }
3714    return err;
3715}
3716
3717void ResTable::unlockBag(const bag_entry* /*bag*/) const
3718{
3719    //printf("<<< unlockBag %p\n", this);
3720    mLock.unlock();
3721}
3722
3723void ResTable::lock() const
3724{
3725    mLock.lock();
3726}
3727
3728void ResTable::unlock() const
3729{
3730    mLock.unlock();
3731}
3732
3733ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3734        uint32_t* outTypeSpecFlags) const
3735{
3736    if (mError != NO_ERROR) {
3737        return mError;
3738    }
3739
3740    const ssize_t p = getResourcePackageIndex(resID);
3741    const int t = Res_GETTYPE(resID);
3742    const int e = Res_GETENTRY(resID);
3743
3744    if (p < 0) {
3745        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3746        return BAD_INDEX;
3747    }
3748    if (t < 0) {
3749        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3750        return BAD_INDEX;
3751    }
3752
3753    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3754    PackageGroup* const grp = mPackageGroups[p];
3755    if (grp == NULL) {
3756        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3757        return BAD_INDEX;
3758    }
3759
3760    const TypeList& typeConfigs = grp->types[t];
3761    if (typeConfigs.isEmpty()) {
3762        ALOGW("Type identifier 0x%x does not exist.", t+1);
3763        return BAD_INDEX;
3764    }
3765
3766    const size_t NENTRY = typeConfigs[0]->entryCount;
3767    if (e >= (int)NENTRY) {
3768        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3769             e, (int)typeConfigs[0]->entryCount);
3770        return BAD_INDEX;
3771    }
3772
3773    // First see if we've already computed this bag...
3774    if (grp->bags) {
3775        bag_set** typeSet = grp->bags->get(t);
3776        if (typeSet) {
3777            bag_set* set = typeSet[e];
3778            if (set) {
3779                if (set != (bag_set*)0xFFFFFFFF) {
3780                    if (outTypeSpecFlags != NULL) {
3781                        *outTypeSpecFlags = set->typeSpecFlags;
3782                    }
3783                    *outBag = (bag_entry*)(set+1);
3784                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3785                    return set->numAttrs;
3786                }
3787                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3788                     resID);
3789                return BAD_INDEX;
3790            }
3791        }
3792    }
3793
3794    // Bag not found, we need to compute it!
3795    if (!grp->bags) {
3796        grp->bags = new ByteBucketArray<bag_set**>();
3797        if (!grp->bags) return NO_MEMORY;
3798    }
3799
3800    bag_set** typeSet = grp->bags->get(t);
3801    if (!typeSet) {
3802        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3803        if (!typeSet) return NO_MEMORY;
3804        grp->bags->set(t, typeSet);
3805    }
3806
3807    // Mark that we are currently working on this one.
3808    typeSet[e] = (bag_set*)0xFFFFFFFF;
3809
3810    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3811
3812    // Now collect all bag attributes
3813    Entry entry;
3814    status_t err = getEntry(grp, t, e, &mParams, &entry);
3815    if (err != NO_ERROR) {
3816        return err;
3817    }
3818
3819    const uint16_t entrySize = dtohs(entry.entry->size);
3820    const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3821        ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0;
3822    const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3823        ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0;
3824
3825    size_t N = count;
3826
3827    TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3828                     entrySize, parent, count));
3829
3830    // If this map inherits from another, we need to start
3831    // with its parent's values.  Otherwise start out empty.
3832    TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3833                       entrySize, parent));
3834
3835    // This is what we are building.
3836    bag_set* set = NULL;
3837
3838    if (parent) {
3839        uint32_t resolvedParent = parent;
3840
3841        // Bags encode a parent reference without using the standard
3842        // Res_value structure. That means we must always try to
3843        // resolve a parent reference in case it is actually a
3844        // TYPE_DYNAMIC_REFERENCE.
3845        status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent);
3846        if (err != NO_ERROR) {
3847            ALOGE("Failed resolving bag parent id 0x%08x", parent);
3848            return UNKNOWN_ERROR;
3849        }
3850
3851        const bag_entry* parentBag;
3852        uint32_t parentTypeSpecFlags = 0;
3853        const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags);
3854        const size_t NT = ((NP >= 0) ? NP : 0) + N;
3855        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3856        if (set == NULL) {
3857            return NO_MEMORY;
3858        }
3859        if (NP > 0) {
3860            memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3861            set->numAttrs = NP;
3862            TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3863        } else {
3864            TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3865            set->numAttrs = 0;
3866        }
3867        set->availAttrs = NT;
3868        set->typeSpecFlags = parentTypeSpecFlags;
3869    } else {
3870        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3871        if (set == NULL) {
3872            return NO_MEMORY;
3873        }
3874        set->numAttrs = 0;
3875        set->availAttrs = N;
3876        set->typeSpecFlags = 0;
3877    }
3878
3879    set->typeSpecFlags |= entry.specFlags;
3880
3881    // Now merge in the new attributes...
3882    size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type))
3883        + dtohs(entry.entry->size);
3884    const ResTable_map* map;
3885    bag_entry* entries = (bag_entry*)(set+1);
3886    size_t curEntry = 0;
3887    uint32_t pos = 0;
3888    TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3889                 set, entries, set->availAttrs));
3890    while (pos < count) {
3891        TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3892
3893        if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) {
3894            ALOGW("ResTable_map at %d is beyond type chunk data %d",
3895                 (int)curOff, dtohl(entry.type->header.size));
3896            return BAD_TYPE;
3897        }
3898        map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff);
3899        N++;
3900
3901        const uint32_t newName = htodl(map->name.ident);
3902        bool isInside;
3903        uint32_t oldName = 0;
3904        while ((isInside=(curEntry < set->numAttrs))
3905                && (oldName=entries[curEntry].map.name.ident) < newName) {
3906            TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3907                         curEntry, entries[curEntry].map.name.ident));
3908            curEntry++;
3909        }
3910
3911        if ((!isInside) || oldName != newName) {
3912            // This is a new attribute...  figure out what to do with it.
3913            if (set->numAttrs >= set->availAttrs) {
3914                // Need to alloc more memory...
3915                const size_t newAvail = set->availAttrs+N;
3916                set = (bag_set*)realloc(set,
3917                                        sizeof(bag_set)
3918                                        + sizeof(bag_entry)*newAvail);
3919                if (set == NULL) {
3920                    return NO_MEMORY;
3921                }
3922                set->availAttrs = newAvail;
3923                entries = (bag_entry*)(set+1);
3924                TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3925                             set, entries, set->availAttrs));
3926            }
3927            if (isInside) {
3928                // Going in the middle, need to make space.
3929                memmove(entries+curEntry+1, entries+curEntry,
3930                        sizeof(bag_entry)*(set->numAttrs-curEntry));
3931                set->numAttrs++;
3932            }
3933            TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3934                         curEntry, newName));
3935        } else {
3936            TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3937                         curEntry, oldName));
3938        }
3939
3940        bag_entry* cur = entries+curEntry;
3941
3942        cur->stringBlock = entry.package->header->index;
3943        cur->map.name.ident = newName;
3944        cur->map.value.copyFrom_dtoh(map->value);
3945        status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value);
3946        if (err != NO_ERROR) {
3947            ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data);
3948            return UNKNOWN_ERROR;
3949        }
3950
3951        TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3952                     curEntry, cur, cur->stringBlock, cur->map.name.ident,
3953                     cur->map.value.dataType, cur->map.value.data));
3954
3955        // On to the next!
3956        curEntry++;
3957        pos++;
3958        const size_t size = dtohs(map->value.size);
3959        curOff += size + sizeof(*map)-sizeof(map->value);
3960    };
3961
3962    if (curEntry > set->numAttrs) {
3963        set->numAttrs = curEntry;
3964    }
3965
3966    // And this is it...
3967    typeSet[e] = set;
3968    if (set) {
3969        if (outTypeSpecFlags != NULL) {
3970            *outTypeSpecFlags = set->typeSpecFlags;
3971        }
3972        *outBag = (bag_entry*)(set+1);
3973        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3974        return set->numAttrs;
3975    }
3976    return BAD_INDEX;
3977}
3978
3979void ResTable::setParameters(const ResTable_config* params)
3980{
3981    mLock.lock();
3982    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
3983    mParams = *params;
3984    for (size_t i=0; i<mPackageGroups.size(); i++) {
3985        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
3986        mPackageGroups[i]->clearBagCache();
3987    }
3988    mLock.unlock();
3989}
3990
3991void ResTable::getParameters(ResTable_config* params) const
3992{
3993    mLock.lock();
3994    *params = mParams;
3995    mLock.unlock();
3996}
3997
3998struct id_name_map {
3999    uint32_t id;
4000    size_t len;
4001    char16_t name[6];
4002};
4003
4004const static id_name_map ID_NAMES[] = {
4005    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
4006    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
4007    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
4008    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
4009    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
4010    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
4011    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
4012    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
4013    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
4014    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
4015};
4016
4017uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
4018                                     const char16_t* type, size_t typeLen,
4019                                     const char16_t* package,
4020                                     size_t packageLen,
4021                                     uint32_t* outTypeSpecFlags) const
4022{
4023    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
4024
4025    // Check for internal resource identifier as the very first thing, so
4026    // that we will always find them even when there are no resources.
4027    if (name[0] == '^') {
4028        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
4029        size_t len;
4030        for (int i=0; i<N; i++) {
4031            const id_name_map* m = ID_NAMES + i;
4032            len = m->len;
4033            if (len != nameLen) {
4034                continue;
4035            }
4036            for (size_t j=1; j<len; j++) {
4037                if (m->name[j] != name[j]) {
4038                    goto nope;
4039                }
4040            }
4041            if (outTypeSpecFlags) {
4042                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4043            }
4044            return m->id;
4045nope:
4046            ;
4047        }
4048        if (nameLen > 7) {
4049            if (name[1] == 'i' && name[2] == 'n'
4050                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
4051                && name[6] == '_') {
4052                int index = atoi(String8(name + 7, nameLen - 7).string());
4053                if (Res_CHECKID(index)) {
4054                    ALOGW("Array resource index: %d is too large.",
4055                         index);
4056                    return 0;
4057                }
4058                if (outTypeSpecFlags) {
4059                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4060                }
4061                return  Res_MAKEARRAY(index);
4062            }
4063        }
4064        return 0;
4065    }
4066
4067    if (mError != NO_ERROR) {
4068        return 0;
4069    }
4070
4071    bool fakePublic = false;
4072
4073    // Figure out the package and type we are looking in...
4074
4075    const char16_t* packageEnd = NULL;
4076    const char16_t* typeEnd = NULL;
4077    const char16_t* const nameEnd = name+nameLen;
4078    const char16_t* p = name;
4079    while (p < nameEnd) {
4080        if (*p == ':') packageEnd = p;
4081        else if (*p == '/') typeEnd = p;
4082        p++;
4083    }
4084    if (*name == '@') {
4085        name++;
4086        if (*name == '*') {
4087            fakePublic = true;
4088            name++;
4089        }
4090    }
4091    if (name >= nameEnd) {
4092        return 0;
4093    }
4094
4095    if (packageEnd) {
4096        package = name;
4097        packageLen = packageEnd-name;
4098        name = packageEnd+1;
4099    } else if (!package) {
4100        return 0;
4101    }
4102
4103    if (typeEnd) {
4104        type = name;
4105        typeLen = typeEnd-name;
4106        name = typeEnd+1;
4107    } else if (!type) {
4108        return 0;
4109    }
4110
4111    if (name >= nameEnd) {
4112        return 0;
4113    }
4114    nameLen = nameEnd-name;
4115
4116    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
4117                 String8(type, typeLen).string(),
4118                 String8(name, nameLen).string(),
4119                 String8(package, packageLen).string()));
4120
4121    const size_t NG = mPackageGroups.size();
4122    for (size_t ig=0; ig<NG; ig++) {
4123        const PackageGroup* group = mPackageGroups[ig];
4124
4125        if (strzcmp16(package, packageLen,
4126                      group->name.string(), group->name.size())) {
4127            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
4128            continue;
4129        }
4130
4131        const ssize_t ti = group->findType16(type, typeLen);
4132        if (ti < 0) {
4133            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
4134            continue;
4135        }
4136
4137        const TypeList& typeList = group->types[ti];
4138        if (typeList.isEmpty()) {
4139            TABLE_NOISY(printf("Expected type structure not found in package %s for index %d\n",
4140                               String8(group->name).string(), ti));
4141            continue;
4142        }
4143
4144        const size_t typeCount = typeList.size();
4145        for (size_t i = 0; i < typeCount; i++) {
4146            const Type* t = typeList[i];
4147            const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen);
4148            if (ei < 0) {
4149                continue;
4150            }
4151
4152            const size_t configCount = t->configs.size();
4153            for (size_t j = 0; j < configCount; j++) {
4154                const TypeVariant tv(t->configs[j]);
4155                for (TypeVariant::iterator iter = tv.beginEntries();
4156                     iter != tv.endEntries();
4157                     iter++) {
4158                    const ResTable_entry* entry = *iter;
4159                    if (entry == NULL) {
4160                        continue;
4161                    }
4162
4163                    if (dtohl(entry->key.index) == (size_t) ei) {
4164                        uint32_t resId = Res_MAKEID(group->id - 1, ti, iter.index());
4165                        if (outTypeSpecFlags) {
4166                            Entry result;
4167                            if (getEntry(group, ti, iter.index(), NULL, &result) != NO_ERROR) {
4168                                ALOGW("Failed to find spec flags for %s:%s/%s (0x%08x)",
4169                                        String8(group->name).string(),
4170                                        String8(String16(type, typeLen)).string(),
4171                                        String8(String16(name, nameLen)).string(),
4172                                        resId);
4173                                return 0;
4174                            }
4175                            *outTypeSpecFlags = result.specFlags;
4176
4177                            if (fakePublic) {
4178                                *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
4179                            }
4180                        }
4181                        return resId;
4182                    }
4183                }
4184            }
4185        }
4186        break;
4187    }
4188    return 0;
4189}
4190
4191bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
4192                                 String16* outPackage,
4193                                 String16* outType,
4194                                 String16* outName,
4195                                 const String16* defType,
4196                                 const String16* defPackage,
4197                                 const char** outErrorMsg,
4198                                 bool* outPublicOnly)
4199{
4200    const char16_t* packageEnd = NULL;
4201    const char16_t* typeEnd = NULL;
4202    const char16_t* p = refStr;
4203    const char16_t* const end = p + refLen;
4204    while (p < end) {
4205        if (*p == ':') packageEnd = p;
4206        else if (*p == '/') {
4207            typeEnd = p;
4208            break;
4209        }
4210        p++;
4211    }
4212    p = refStr;
4213    if (*p == '@') p++;
4214
4215    if (outPublicOnly != NULL) {
4216        *outPublicOnly = true;
4217    }
4218    if (*p == '*') {
4219        p++;
4220        if (outPublicOnly != NULL) {
4221            *outPublicOnly = false;
4222        }
4223    }
4224
4225    if (packageEnd) {
4226        *outPackage = String16(p, packageEnd-p);
4227        p = packageEnd+1;
4228    } else {
4229        if (!defPackage) {
4230            if (outErrorMsg) {
4231                *outErrorMsg = "No resource package specified";
4232            }
4233            return false;
4234        }
4235        *outPackage = *defPackage;
4236    }
4237    if (typeEnd) {
4238        *outType = String16(p, typeEnd-p);
4239        p = typeEnd+1;
4240    } else {
4241        if (!defType) {
4242            if (outErrorMsg) {
4243                *outErrorMsg = "No resource type specified";
4244            }
4245            return false;
4246        }
4247        *outType = *defType;
4248    }
4249    *outName = String16(p, end-p);
4250    if(**outPackage == 0) {
4251        if(outErrorMsg) {
4252            *outErrorMsg = "Resource package cannot be an empty string";
4253        }
4254        return false;
4255    }
4256    if(**outType == 0) {
4257        if(outErrorMsg) {
4258            *outErrorMsg = "Resource type cannot be an empty string";
4259        }
4260        return false;
4261    }
4262    if(**outName == 0) {
4263        if(outErrorMsg) {
4264            *outErrorMsg = "Resource id cannot be an empty string";
4265        }
4266        return false;
4267    }
4268    return true;
4269}
4270
4271static uint32_t get_hex(char c, bool* outError)
4272{
4273    if (c >= '0' && c <= '9') {
4274        return c - '0';
4275    } else if (c >= 'a' && c <= 'f') {
4276        return c - 'a' + 0xa;
4277    } else if (c >= 'A' && c <= 'F') {
4278        return c - 'A' + 0xa;
4279    }
4280    *outError = true;
4281    return 0;
4282}
4283
4284struct unit_entry
4285{
4286    const char* name;
4287    size_t len;
4288    uint8_t type;
4289    uint32_t unit;
4290    float scale;
4291};
4292
4293static const unit_entry unitNames[] = {
4294    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4295    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4296    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4297    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4298    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4299    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4300    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4301    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4302    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4303    { NULL, 0, 0, 0, 0 }
4304};
4305
4306static bool parse_unit(const char* str, Res_value* outValue,
4307                       float* outScale, const char** outEnd)
4308{
4309    const char* end = str;
4310    while (*end != 0 && !isspace((unsigned char)*end)) {
4311        end++;
4312    }
4313    const size_t len = end-str;
4314
4315    const char* realEnd = end;
4316    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4317        realEnd++;
4318    }
4319    if (*realEnd != 0) {
4320        return false;
4321    }
4322
4323    const unit_entry* cur = unitNames;
4324    while (cur->name) {
4325        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4326            outValue->dataType = cur->type;
4327            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4328            *outScale = cur->scale;
4329            *outEnd = end;
4330            //printf("Found unit %s for %s\n", cur->name, str);
4331            return true;
4332        }
4333        cur++;
4334    }
4335
4336    return false;
4337}
4338
4339
4340bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4341{
4342    while (len > 0 && isspace16(*s)) {
4343        s++;
4344        len--;
4345    }
4346
4347    if (len <= 0) {
4348        return false;
4349    }
4350
4351    size_t i = 0;
4352    int32_t val = 0;
4353    bool neg = false;
4354
4355    if (*s == '-') {
4356        neg = true;
4357        i++;
4358    }
4359
4360    if (s[i] < '0' || s[i] > '9') {
4361        return false;
4362    }
4363
4364    // Decimal or hex?
4365    if (s[i] == '0' && s[i+1] == 'x') {
4366        if (outValue)
4367            outValue->dataType = outValue->TYPE_INT_HEX;
4368        i += 2;
4369        bool error = false;
4370        while (i < len && !error) {
4371            val = (val*16) + get_hex(s[i], &error);
4372            i++;
4373        }
4374        if (error) {
4375            return false;
4376        }
4377    } else {
4378        if (outValue)
4379            outValue->dataType = outValue->TYPE_INT_DEC;
4380        while (i < len) {
4381            if (s[i] < '0' || s[i] > '9') {
4382                return false;
4383            }
4384            val = (val*10) + s[i]-'0';
4385            i++;
4386        }
4387    }
4388
4389    if (neg) val = -val;
4390
4391    while (i < len && isspace16(s[i])) {
4392        i++;
4393    }
4394
4395    if (i == len) {
4396        if (outValue)
4397            outValue->data = val;
4398        return true;
4399    }
4400
4401    return false;
4402}
4403
4404bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4405{
4406    while (len > 0 && isspace16(*s)) {
4407        s++;
4408        len--;
4409    }
4410
4411    if (len <= 0) {
4412        return false;
4413    }
4414
4415    char buf[128];
4416    int i=0;
4417    while (len > 0 && *s != 0 && i < 126) {
4418        if (*s > 255) {
4419            return false;
4420        }
4421        buf[i++] = *s++;
4422        len--;
4423    }
4424
4425    if (len > 0) {
4426        return false;
4427    }
4428    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4429        return false;
4430    }
4431
4432    buf[i] = 0;
4433    const char* end;
4434    float f = strtof(buf, (char**)&end);
4435
4436    if (*end != 0 && !isspace((unsigned char)*end)) {
4437        // Might be a unit...
4438        float scale;
4439        if (parse_unit(end, outValue, &scale, &end)) {
4440            f *= scale;
4441            const bool neg = f < 0;
4442            if (neg) f = -f;
4443            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4444            uint32_t radix;
4445            uint32_t shift;
4446            if ((bits&0x7fffff) == 0) {
4447                // Always use 23p0 if there is no fraction, just to make
4448                // things easier to read.
4449                radix = Res_value::COMPLEX_RADIX_23p0;
4450                shift = 23;
4451            } else if ((bits&0xffffffffff800000LL) == 0) {
4452                // Magnitude is zero -- can fit in 0 bits of precision.
4453                radix = Res_value::COMPLEX_RADIX_0p23;
4454                shift = 0;
4455            } else if ((bits&0xffffffff80000000LL) == 0) {
4456                // Magnitude can fit in 8 bits of precision.
4457                radix = Res_value::COMPLEX_RADIX_8p15;
4458                shift = 8;
4459            } else if ((bits&0xffffff8000000000LL) == 0) {
4460                // Magnitude can fit in 16 bits of precision.
4461                radix = Res_value::COMPLEX_RADIX_16p7;
4462                shift = 16;
4463            } else {
4464                // Magnitude needs entire range, so no fractional part.
4465                radix = Res_value::COMPLEX_RADIX_23p0;
4466                shift = 23;
4467            }
4468            int32_t mantissa = (int32_t)(
4469                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4470            if (neg) {
4471                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4472            }
4473            outValue->data |=
4474                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4475                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4476            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4477            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4478            //       radix, shift, outValue->data);
4479            return true;
4480        }
4481        return false;
4482    }
4483
4484    while (*end != 0 && isspace((unsigned char)*end)) {
4485        end++;
4486    }
4487
4488    if (*end == 0) {
4489        if (outValue) {
4490            outValue->dataType = outValue->TYPE_FLOAT;
4491            *(float*)(&outValue->data) = f;
4492            return true;
4493        }
4494    }
4495
4496    return false;
4497}
4498
4499bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4500                             const char16_t* s, size_t len,
4501                             bool preserveSpaces, bool coerceType,
4502                             uint32_t attrID,
4503                             const String16* defType,
4504                             const String16* defPackage,
4505                             Accessor* accessor,
4506                             void* accessorCookie,
4507                             uint32_t attrType,
4508                             bool enforcePrivate) const
4509{
4510    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4511    const char* errorMsg = NULL;
4512
4513    outValue->size = sizeof(Res_value);
4514    outValue->res0 = 0;
4515
4516    // First strip leading/trailing whitespace.  Do this before handling
4517    // escapes, so they can be used to force whitespace into the string.
4518    if (!preserveSpaces) {
4519        while (len > 0 && isspace16(*s)) {
4520            s++;
4521            len--;
4522        }
4523        while (len > 0 && isspace16(s[len-1])) {
4524            len--;
4525        }
4526        // If the string ends with '\', then we keep the space after it.
4527        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4528            len++;
4529        }
4530    }
4531
4532    //printf("Value for: %s\n", String8(s, len).string());
4533
4534    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4535    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4536    bool fromAccessor = false;
4537    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4538        const ssize_t p = getResourcePackageIndex(attrID);
4539        const bag_entry* bag;
4540        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4541        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4542        if (cnt >= 0) {
4543            while (cnt > 0) {
4544                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4545                switch (bag->map.name.ident) {
4546                case ResTable_map::ATTR_TYPE:
4547                    attrType = bag->map.value.data;
4548                    break;
4549                case ResTable_map::ATTR_MIN:
4550                    attrMin = bag->map.value.data;
4551                    break;
4552                case ResTable_map::ATTR_MAX:
4553                    attrMax = bag->map.value.data;
4554                    break;
4555                case ResTable_map::ATTR_L10N:
4556                    l10nReq = bag->map.value.data;
4557                    break;
4558                }
4559                bag++;
4560                cnt--;
4561            }
4562            unlockBag(bag);
4563        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4564            fromAccessor = true;
4565            if (attrType == ResTable_map::TYPE_ENUM
4566                    || attrType == ResTable_map::TYPE_FLAGS
4567                    || attrType == ResTable_map::TYPE_INTEGER) {
4568                accessor->getAttributeMin(attrID, &attrMin);
4569                accessor->getAttributeMax(attrID, &attrMax);
4570            }
4571            if (localizationSetting) {
4572                l10nReq = accessor->getAttributeL10N(attrID);
4573            }
4574        }
4575    }
4576
4577    const bool canStringCoerce =
4578        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4579
4580    if (*s == '@') {
4581        outValue->dataType = outValue->TYPE_REFERENCE;
4582
4583        // Note: we don't check attrType here because the reference can
4584        // be to any other type; we just need to count on the client making
4585        // sure the referenced type is correct.
4586
4587        //printf("Looking up ref: %s\n", String8(s, len).string());
4588
4589        // It's a reference!
4590        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4591            outValue->data = 0;
4592            return true;
4593        } else {
4594            bool createIfNotFound = false;
4595            const char16_t* resourceRefName;
4596            int resourceNameLen;
4597            if (len > 2 && s[1] == '+') {
4598                createIfNotFound = true;
4599                resourceRefName = s + 2;
4600                resourceNameLen = len - 2;
4601            } else if (len > 2 && s[1] == '*') {
4602                enforcePrivate = false;
4603                resourceRefName = s + 2;
4604                resourceNameLen = len - 2;
4605            } else {
4606                createIfNotFound = false;
4607                resourceRefName = s + 1;
4608                resourceNameLen = len - 1;
4609            }
4610            String16 package, type, name;
4611            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4612                                   defType, defPackage, &errorMsg)) {
4613                if (accessor != NULL) {
4614                    accessor->reportError(accessorCookie, errorMsg);
4615                }
4616                return false;
4617            }
4618
4619            uint32_t specFlags = 0;
4620            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4621                    type.size(), package.string(), package.size(), &specFlags);
4622            if (rid != 0) {
4623                if (enforcePrivate) {
4624                    if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4625                        if (accessor != NULL) {
4626                            accessor->reportError(accessorCookie, "Resource is not public.");
4627                        }
4628                        return false;
4629                    }
4630                }
4631
4632                if (accessor) {
4633                    rid = Res_MAKEID(
4634                        accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4635                        Res_GETTYPE(rid), Res_GETENTRY(rid));
4636                    TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4637                           String8(package).string(), String8(type).string(),
4638                           String8(name).string(), rid));
4639                }
4640
4641                uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4642                if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
4643                    outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4644                }
4645                outValue->data = rid;
4646                return true;
4647            }
4648
4649            if (accessor) {
4650                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4651                                                                       createIfNotFound);
4652                if (rid != 0) {
4653                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4654                           String8(package).string(), String8(type).string(),
4655                           String8(name).string(), rid));
4656                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4657                    if (packageId == 0x00) {
4658                        outValue->data = rid;
4659                        outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4660                        return true;
4661                    } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
4662                        // We accept packageId's generated as 0x01 in order to support
4663                        // building the android system resources
4664                        outValue->data = rid;
4665                        return true;
4666                    }
4667                }
4668            }
4669        }
4670
4671        if (accessor != NULL) {
4672            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4673        }
4674        return false;
4675    }
4676
4677    // if we got to here, and localization is required and it's not a reference,
4678    // complain and bail.
4679    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4680        if (localizationSetting) {
4681            if (accessor != NULL) {
4682                accessor->reportError(accessorCookie, "This attribute must be localized.");
4683            }
4684        }
4685    }
4686
4687    if (*s == '#') {
4688        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4689        uint32_t color = 0;
4690        bool error = false;
4691        if (len == 4) {
4692            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4693            color |= 0xFF000000;
4694            color |= get_hex(s[1], &error) << 20;
4695            color |= get_hex(s[1], &error) << 16;
4696            color |= get_hex(s[2], &error) << 12;
4697            color |= get_hex(s[2], &error) << 8;
4698            color |= get_hex(s[3], &error) << 4;
4699            color |= get_hex(s[3], &error);
4700        } else if (len == 5) {
4701            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4702            color |= get_hex(s[1], &error) << 28;
4703            color |= get_hex(s[1], &error) << 24;
4704            color |= get_hex(s[2], &error) << 20;
4705            color |= get_hex(s[2], &error) << 16;
4706            color |= get_hex(s[3], &error) << 12;
4707            color |= get_hex(s[3], &error) << 8;
4708            color |= get_hex(s[4], &error) << 4;
4709            color |= get_hex(s[4], &error);
4710        } else if (len == 7) {
4711            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4712            color |= 0xFF000000;
4713            color |= get_hex(s[1], &error) << 20;
4714            color |= get_hex(s[2], &error) << 16;
4715            color |= get_hex(s[3], &error) << 12;
4716            color |= get_hex(s[4], &error) << 8;
4717            color |= get_hex(s[5], &error) << 4;
4718            color |= get_hex(s[6], &error);
4719        } else if (len == 9) {
4720            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4721            color |= get_hex(s[1], &error) << 28;
4722            color |= get_hex(s[2], &error) << 24;
4723            color |= get_hex(s[3], &error) << 20;
4724            color |= get_hex(s[4], &error) << 16;
4725            color |= get_hex(s[5], &error) << 12;
4726            color |= get_hex(s[6], &error) << 8;
4727            color |= get_hex(s[7], &error) << 4;
4728            color |= get_hex(s[8], &error);
4729        } else {
4730            error = true;
4731        }
4732        if (!error) {
4733            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4734                if (!canStringCoerce) {
4735                    if (accessor != NULL) {
4736                        accessor->reportError(accessorCookie,
4737                                "Color types not allowed");
4738                    }
4739                    return false;
4740                }
4741            } else {
4742                outValue->data = color;
4743                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4744                return true;
4745            }
4746        } else {
4747            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4748                if (accessor != NULL) {
4749                    accessor->reportError(accessorCookie, "Color value not valid --"
4750                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4751                }
4752                #if 0
4753                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4754                        "Resource File", //(const char*)in->getPrintableSource(),
4755                        String8(*curTag).string(),
4756                        String8(s, len).string());
4757                #endif
4758                return false;
4759            }
4760        }
4761    }
4762
4763    if (*s == '?') {
4764        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4765
4766        // Note: we don't check attrType here because the reference can
4767        // be to any other type; we just need to count on the client making
4768        // sure the referenced type is correct.
4769
4770        //printf("Looking up attr: %s\n", String8(s, len).string());
4771
4772        static const String16 attr16("attr");
4773        String16 package, type, name;
4774        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4775                               &attr16, defPackage, &errorMsg)) {
4776            if (accessor != NULL) {
4777                accessor->reportError(accessorCookie, errorMsg);
4778            }
4779            return false;
4780        }
4781
4782        //printf("Pkg: %s, Type: %s, Name: %s\n",
4783        //       String8(package).string(), String8(type).string(),
4784        //       String8(name).string());
4785        uint32_t specFlags = 0;
4786        uint32_t rid =
4787            identifierForName(name.string(), name.size(),
4788                              type.string(), type.size(),
4789                              package.string(), package.size(), &specFlags);
4790        if (rid != 0) {
4791            if (enforcePrivate) {
4792                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4793                    if (accessor != NULL) {
4794                        accessor->reportError(accessorCookie, "Attribute is not public.");
4795                    }
4796                    return false;
4797                }
4798            }
4799            if (!accessor) {
4800                outValue->data = rid;
4801                return true;
4802            }
4803            rid = Res_MAKEID(
4804                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4805                Res_GETTYPE(rid), Res_GETENTRY(rid));
4806            //printf("Incl %s:%s/%s: 0x%08x\n",
4807            //       String8(package).string(), String8(type).string(),
4808            //       String8(name).string(), rid);
4809            outValue->data = rid;
4810            return true;
4811        }
4812
4813        if (accessor) {
4814            uint32_t rid = accessor->getCustomResource(package, type, name);
4815            if (rid != 0) {
4816                //printf("Mine %s:%s/%s: 0x%08x\n",
4817                //       String8(package).string(), String8(type).string(),
4818                //       String8(name).string(), rid);
4819                outValue->data = rid;
4820                return true;
4821            }
4822        }
4823
4824        if (accessor != NULL) {
4825            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4826        }
4827        return false;
4828    }
4829
4830    if (stringToInt(s, len, outValue)) {
4831        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4832            // If this type does not allow integers, but does allow floats,
4833            // fall through on this error case because the float type should
4834            // be able to accept any integer value.
4835            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4836                if (accessor != NULL) {
4837                    accessor->reportError(accessorCookie, "Integer types not allowed");
4838                }
4839                return false;
4840            }
4841        } else {
4842            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4843                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4844                if (accessor != NULL) {
4845                    accessor->reportError(accessorCookie, "Integer value out of range");
4846                }
4847                return false;
4848            }
4849            return true;
4850        }
4851    }
4852
4853    if (stringToFloat(s, len, outValue)) {
4854        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4855            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4856                return true;
4857            }
4858            if (!canStringCoerce) {
4859                if (accessor != NULL) {
4860                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4861                }
4862                return false;
4863            }
4864        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4865            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4866                return true;
4867            }
4868            if (!canStringCoerce) {
4869                if (accessor != NULL) {
4870                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4871                }
4872                return false;
4873            }
4874        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4875            if (!canStringCoerce) {
4876                if (accessor != NULL) {
4877                    accessor->reportError(accessorCookie, "Float types not allowed");
4878                }
4879                return false;
4880            }
4881        } else {
4882            return true;
4883        }
4884    }
4885
4886    if (len == 4) {
4887        if ((s[0] == 't' || s[0] == 'T') &&
4888            (s[1] == 'r' || s[1] == 'R') &&
4889            (s[2] == 'u' || s[2] == 'U') &&
4890            (s[3] == 'e' || s[3] == 'E')) {
4891            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4892                if (!canStringCoerce) {
4893                    if (accessor != NULL) {
4894                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4895                    }
4896                    return false;
4897                }
4898            } else {
4899                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4900                outValue->data = (uint32_t)-1;
4901                return true;
4902            }
4903        }
4904    }
4905
4906    if (len == 5) {
4907        if ((s[0] == 'f' || s[0] == 'F') &&
4908            (s[1] == 'a' || s[1] == 'A') &&
4909            (s[2] == 'l' || s[2] == 'L') &&
4910            (s[3] == 's' || s[3] == 'S') &&
4911            (s[4] == 'e' || s[4] == 'E')) {
4912            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4913                if (!canStringCoerce) {
4914                    if (accessor != NULL) {
4915                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4916                    }
4917                    return false;
4918                }
4919            } else {
4920                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4921                outValue->data = 0;
4922                return true;
4923            }
4924        }
4925    }
4926
4927    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4928        const ssize_t p = getResourcePackageIndex(attrID);
4929        const bag_entry* bag;
4930        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4931        //printf("Got %d for enum\n", cnt);
4932        if (cnt >= 0) {
4933            resource_name rname;
4934            while (cnt > 0) {
4935                if (!Res_INTERNALID(bag->map.name.ident)) {
4936                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4937                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4938                        #if 0
4939                        printf("Matching %s against %s (0x%08x)\n",
4940                               String8(s, len).string(),
4941                               String8(rname.name, rname.nameLen).string(),
4942                               bag->map.name.ident);
4943                        #endif
4944                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4945                            outValue->dataType = bag->map.value.dataType;
4946                            outValue->data = bag->map.value.data;
4947                            unlockBag(bag);
4948                            return true;
4949                        }
4950                    }
4951
4952                }
4953                bag++;
4954                cnt--;
4955            }
4956            unlockBag(bag);
4957        }
4958
4959        if (fromAccessor) {
4960            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4961                return true;
4962            }
4963        }
4964    }
4965
4966    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4967        const ssize_t p = getResourcePackageIndex(attrID);
4968        const bag_entry* bag;
4969        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4970        //printf("Got %d for flags\n", cnt);
4971        if (cnt >= 0) {
4972            bool failed = false;
4973            resource_name rname;
4974            outValue->dataType = Res_value::TYPE_INT_HEX;
4975            outValue->data = 0;
4976            const char16_t* end = s + len;
4977            const char16_t* pos = s;
4978            while (pos < end && !failed) {
4979                const char16_t* start = pos;
4980                pos++;
4981                while (pos < end && *pos != '|') {
4982                    pos++;
4983                }
4984                //printf("Looking for: %s\n", String8(start, pos-start).string());
4985                const bag_entry* bagi = bag;
4986                ssize_t i;
4987                for (i=0; i<cnt; i++, bagi++) {
4988                    if (!Res_INTERNALID(bagi->map.name.ident)) {
4989                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
4990                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
4991                            #if 0
4992                            printf("Matching %s against %s (0x%08x)\n",
4993                                   String8(start,pos-start).string(),
4994                                   String8(rname.name, rname.nameLen).string(),
4995                                   bagi->map.name.ident);
4996                            #endif
4997                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
4998                                outValue->data |= bagi->map.value.data;
4999                                break;
5000                            }
5001                        }
5002                    }
5003                }
5004                if (i >= cnt) {
5005                    // Didn't find this flag identifier.
5006                    failed = true;
5007                }
5008                if (pos < end) {
5009                    pos++;
5010                }
5011            }
5012            unlockBag(bag);
5013            if (!failed) {
5014                //printf("Final flag value: 0x%lx\n", outValue->data);
5015                return true;
5016            }
5017        }
5018
5019
5020        if (fromAccessor) {
5021            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
5022                //printf("Final flag value: 0x%lx\n", outValue->data);
5023                return true;
5024            }
5025        }
5026    }
5027
5028    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
5029        if (accessor != NULL) {
5030            accessor->reportError(accessorCookie, "String types not allowed");
5031        }
5032        return false;
5033    }
5034
5035    // Generic string handling...
5036    outValue->dataType = outValue->TYPE_STRING;
5037    if (outString) {
5038        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
5039        if (accessor != NULL) {
5040            accessor->reportError(accessorCookie, errorMsg);
5041        }
5042        return failed;
5043    }
5044
5045    return true;
5046}
5047
5048bool ResTable::collectString(String16* outString,
5049                             const char16_t* s, size_t len,
5050                             bool preserveSpaces,
5051                             const char** outErrorMsg,
5052                             bool append)
5053{
5054    String16 tmp;
5055
5056    char quoted = 0;
5057    const char16_t* p = s;
5058    while (p < (s+len)) {
5059        while (p < (s+len)) {
5060            const char16_t c = *p;
5061            if (c == '\\') {
5062                break;
5063            }
5064            if (!preserveSpaces) {
5065                if (quoted == 0 && isspace16(c)
5066                    && (c != ' ' || isspace16(*(p+1)))) {
5067                    break;
5068                }
5069                if (c == '"' && (quoted == 0 || quoted == '"')) {
5070                    break;
5071                }
5072                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
5073                    /*
5074                     * In practice, when people write ' instead of \'
5075                     * in a string, they are doing it by accident
5076                     * instead of really meaning to use ' as a quoting
5077                     * character.  Warn them so they don't lose it.
5078                     */
5079                    if (outErrorMsg) {
5080                        *outErrorMsg = "Apostrophe not preceded by \\";
5081                    }
5082                    return false;
5083                }
5084            }
5085            p++;
5086        }
5087        if (p < (s+len)) {
5088            if (p > s) {
5089                tmp.append(String16(s, p-s));
5090            }
5091            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
5092                if (quoted == 0) {
5093                    quoted = *p;
5094                } else {
5095                    quoted = 0;
5096                }
5097                p++;
5098            } else if (!preserveSpaces && isspace16(*p)) {
5099                // Space outside of a quote -- consume all spaces and
5100                // leave a single plain space char.
5101                tmp.append(String16(" "));
5102                p++;
5103                while (p < (s+len) && isspace16(*p)) {
5104                    p++;
5105                }
5106            } else if (*p == '\\') {
5107                p++;
5108                if (p < (s+len)) {
5109                    switch (*p) {
5110                    case 't':
5111                        tmp.append(String16("\t"));
5112                        break;
5113                    case 'n':
5114                        tmp.append(String16("\n"));
5115                        break;
5116                    case '#':
5117                        tmp.append(String16("#"));
5118                        break;
5119                    case '@':
5120                        tmp.append(String16("@"));
5121                        break;
5122                    case '?':
5123                        tmp.append(String16("?"));
5124                        break;
5125                    case '"':
5126                        tmp.append(String16("\""));
5127                        break;
5128                    case '\'':
5129                        tmp.append(String16("'"));
5130                        break;
5131                    case '\\':
5132                        tmp.append(String16("\\"));
5133                        break;
5134                    case 'u':
5135                    {
5136                        char16_t chr = 0;
5137                        int i = 0;
5138                        while (i < 4 && p[1] != 0) {
5139                            p++;
5140                            i++;
5141                            int c;
5142                            if (*p >= '0' && *p <= '9') {
5143                                c = *p - '0';
5144                            } else if (*p >= 'a' && *p <= 'f') {
5145                                c = *p - 'a' + 10;
5146                            } else if (*p >= 'A' && *p <= 'F') {
5147                                c = *p - 'A' + 10;
5148                            } else {
5149                                if (outErrorMsg) {
5150                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
5151                                }
5152                                return false;
5153                            }
5154                            chr = (chr<<4) | c;
5155                        }
5156                        tmp.append(String16(&chr, 1));
5157                    } break;
5158                    default:
5159                        // ignore unknown escape chars.
5160                        break;
5161                    }
5162                    p++;
5163                }
5164            }
5165            len -= (p-s);
5166            s = p;
5167        }
5168    }
5169
5170    if (tmp.size() != 0) {
5171        if (len > 0) {
5172            tmp.append(String16(s, len));
5173        }
5174        if (append) {
5175            outString->append(tmp);
5176        } else {
5177            outString->setTo(tmp);
5178        }
5179    } else {
5180        if (append) {
5181            outString->append(String16(s, len));
5182        } else {
5183            outString->setTo(s, len);
5184        }
5185    }
5186
5187    return true;
5188}
5189
5190size_t ResTable::getBasePackageCount() const
5191{
5192    if (mError != NO_ERROR) {
5193        return 0;
5194    }
5195    return mPackageGroups.size();
5196}
5197
5198const String16 ResTable::getBasePackageName(size_t idx) const
5199{
5200    if (mError != NO_ERROR) {
5201        return String16();
5202    }
5203    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5204                 "Requested package index %d past package count %d",
5205                 (int)idx, (int)mPackageGroups.size());
5206    return mPackageGroups[idx]->name;
5207}
5208
5209uint32_t ResTable::getBasePackageId(size_t idx) const
5210{
5211    if (mError != NO_ERROR) {
5212        return 0;
5213    }
5214    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5215                 "Requested package index %d past package count %d",
5216                 (int)idx, (int)mPackageGroups.size());
5217    return mPackageGroups[idx]->id;
5218}
5219
5220uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const
5221{
5222    if (mError != NO_ERROR) {
5223        return 0;
5224    }
5225    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5226            "Requested package index %d past package count %d",
5227            (int)idx, (int)mPackageGroups.size());
5228    const PackageGroup* const group = mPackageGroups[idx];
5229    return group->largestTypeId;
5230}
5231
5232size_t ResTable::getTableCount() const
5233{
5234    return mHeaders.size();
5235}
5236
5237const ResStringPool* ResTable::getTableStringBlock(size_t index) const
5238{
5239    return &mHeaders[index]->values;
5240}
5241
5242int32_t ResTable::getTableCookie(size_t index) const
5243{
5244    return mHeaders[index]->cookie;
5245}
5246
5247const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const
5248{
5249    const size_t N = mPackageGroups.size();
5250    for (size_t i = 0; i < N; i++) {
5251        const PackageGroup* pg = mPackageGroups[i];
5252        size_t M = pg->packages.size();
5253        for (size_t j = 0; j < M; j++) {
5254            if (pg->packages[j]->header->cookie == cookie) {
5255                return &pg->dynamicRefTable;
5256            }
5257        }
5258    }
5259    return NULL;
5260}
5261
5262void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
5263{
5264    const size_t packageCount = mPackageGroups.size();
5265    for (size_t i = 0; i < packageCount; i++) {
5266        const PackageGroup* packageGroup = mPackageGroups[i];
5267        const size_t typeCount = packageGroup->types.size();
5268        for (size_t j = 0; j < typeCount; j++) {
5269            const TypeList& typeList = packageGroup->types[j];
5270            const size_t numTypes = typeList.size();
5271            for (size_t k = 0; k < numTypes; k++) {
5272                const Type* type = typeList[k];
5273                const size_t numConfigs = type->configs.size();
5274                for (size_t m = 0; m < numConfigs; m++) {
5275                    const ResTable_type* config = type->configs[m];
5276                    ResTable_config cfg;
5277                    memset(&cfg, 0, sizeof(ResTable_config));
5278                    cfg.copyFromDtoH(config->config);
5279                    // only insert unique
5280                    const size_t N = configs->size();
5281                    size_t n;
5282                    for (n = 0; n < N; n++) {
5283                        if (0 == (*configs)[n].compare(cfg)) {
5284                            break;
5285                        }
5286                    }
5287                    // if we didn't find it
5288                    if (n == N) {
5289                        configs->add(cfg);
5290                    }
5291                }
5292            }
5293        }
5294    }
5295}
5296
5297void ResTable::getLocales(Vector<String8>* locales) const
5298{
5299    Vector<ResTable_config> configs;
5300    ALOGV("calling getConfigurations");
5301    getConfigurations(&configs);
5302    ALOGV("called getConfigurations size=%d", (int)configs.size());
5303    const size_t I = configs.size();
5304
5305    char locale[RESTABLE_MAX_LOCALE_LEN];
5306    for (size_t i=0; i<I; i++) {
5307        configs[i].getBcp47Locale(locale);
5308        const size_t J = locales->size();
5309        size_t j;
5310        for (j=0; j<J; j++) {
5311            if (0 == strcmp(locale, (*locales)[j].string())) {
5312                break;
5313            }
5314        }
5315        if (j == J) {
5316            locales->add(String8(locale));
5317        }
5318    }
5319}
5320
5321StringPoolRef::StringPoolRef(const ResStringPool* pool, uint32_t index)
5322    : mPool(pool), mIndex(index) {}
5323
5324StringPoolRef::StringPoolRef()
5325    : mPool(NULL), mIndex(0) {}
5326
5327const char* StringPoolRef::string8(size_t* outLen) const {
5328    if (mPool != NULL) {
5329        return mPool->string8At(mIndex, outLen);
5330    }
5331    if (outLen != NULL) {
5332        *outLen = 0;
5333    }
5334    return NULL;
5335}
5336
5337const char16_t* StringPoolRef::string16(size_t* outLen) const {
5338    if (mPool != NULL) {
5339        return mPool->stringAt(mIndex, outLen);
5340    }
5341    if (outLen != NULL) {
5342        *outLen = 0;
5343    }
5344    return NULL;
5345}
5346
5347status_t ResTable::getEntry(
5348        const PackageGroup* packageGroup, int typeIndex, int entryIndex,
5349        const ResTable_config* config,
5350        Entry* outEntry) const
5351{
5352    const TypeList& typeList = packageGroup->types[typeIndex];
5353    if (typeList.isEmpty()) {
5354        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5355        return BAD_TYPE;
5356    }
5357
5358    const ResTable_type* bestType = NULL;
5359    uint32_t bestOffset = ResTable_type::NO_ENTRY;
5360    const Package* bestPackage = NULL;
5361    uint32_t specFlags = 0;
5362    uint8_t actualTypeIndex = typeIndex;
5363    ResTable_config bestConfig;
5364    memset(&bestConfig, 0, sizeof(bestConfig));
5365
5366    // Iterate over the Types of each package.
5367    const size_t typeCount = typeList.size();
5368    for (size_t i = 0; i < typeCount; i++) {
5369        const Type* const typeSpec = typeList[i];
5370
5371        int realEntryIndex = entryIndex;
5372        int realTypeIndex = typeIndex;
5373        bool currentTypeIsOverlay = false;
5374
5375        // Runtime overlay packages provide a mapping of app resource
5376        // ID to package resource ID.
5377        if (typeSpec->idmapEntries.hasEntries()) {
5378            uint16_t overlayEntryIndex;
5379            if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) {
5380                // No such mapping exists
5381                continue;
5382            }
5383            realEntryIndex = overlayEntryIndex;
5384            realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1;
5385            currentTypeIsOverlay = true;
5386        }
5387
5388        if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) {
5389            ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)",
5390                    Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex),
5391                    entryIndex, static_cast<int>(typeSpec->entryCount));
5392            // We should normally abort here, but some legacy apps declare
5393            // resources in the 'android' package (old bug in AAPT).
5394            continue;
5395        }
5396
5397        // Aggregate all the flags for each package that defines this entry.
5398        if (typeSpec->typeSpecFlags != NULL) {
5399            specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]);
5400        } else {
5401            specFlags = -1;
5402        }
5403
5404        const size_t numConfigs = typeSpec->configs.size();
5405        for (size_t c = 0; c < numConfigs; c++) {
5406            const ResTable_type* const thisType = typeSpec->configs[c];
5407            if (thisType == NULL) {
5408                continue;
5409            }
5410
5411            ResTable_config thisConfig;
5412            thisConfig.copyFromDtoH(thisType->config);
5413
5414            // Check to make sure this one is valid for the current parameters.
5415            if (config != NULL && !thisConfig.match(*config)) {
5416                continue;
5417            }
5418
5419            // Check if there is the desired entry in this type.
5420            const uint8_t* const end = reinterpret_cast<const uint8_t*>(thisType)
5421                    + dtohl(thisType->header.size);
5422            const uint32_t* const eindex = reinterpret_cast<const uint32_t*>(
5423                    reinterpret_cast<const uint8_t*>(thisType) + dtohs(thisType->header.headerSize));
5424
5425            uint32_t thisOffset = dtohl(eindex[realEntryIndex]);
5426            if (thisOffset == ResTable_type::NO_ENTRY) {
5427                // There is no entry for this index and configuration.
5428                continue;
5429            }
5430
5431            if (bestType != NULL) {
5432                // Check if this one is less specific than the last found.  If so,
5433                // we will skip it.  We check starting with things we most care
5434                // about to those we least care about.
5435                if (!thisConfig.isBetterThan(bestConfig, config)) {
5436                    if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) {
5437                        continue;
5438                    }
5439                }
5440            }
5441
5442            bestType = thisType;
5443            bestOffset = thisOffset;
5444            bestConfig = thisConfig;
5445            bestPackage = typeSpec->package;
5446            actualTypeIndex = realTypeIndex;
5447
5448            // If no config was specified, any type will do, so skip
5449            if (config == NULL) {
5450                break;
5451            }
5452        }
5453    }
5454
5455    if (bestType == NULL) {
5456        return BAD_INDEX;
5457    }
5458
5459    bestOffset += dtohl(bestType->entriesStart);
5460
5461    if (bestOffset > (dtohl(bestType->header.size)-sizeof(ResTable_entry))) {
5462        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5463                bestOffset, dtohl(bestType->header.size));
5464        return BAD_TYPE;
5465    }
5466    if ((bestOffset & 0x3) != 0) {
5467        ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset);
5468        return BAD_TYPE;
5469    }
5470
5471    const ResTable_entry* const entry = reinterpret_cast<const ResTable_entry*>(
5472            reinterpret_cast<const uint8_t*>(bestType) + bestOffset);
5473    if (dtohs(entry->size) < sizeof(*entry)) {
5474        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5475        return BAD_TYPE;
5476    }
5477
5478    if (outEntry != NULL) {
5479        outEntry->entry = entry;
5480        outEntry->config = bestConfig;
5481        outEntry->type = bestType;
5482        outEntry->specFlags = specFlags;
5483        outEntry->package = bestPackage;
5484        outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings, actualTypeIndex - bestPackage->typeIdOffset);
5485        outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index));
5486    }
5487    return NO_ERROR;
5488}
5489
5490status_t ResTable::parsePackage(const ResTable_package* const pkg,
5491                                const Header* const header)
5492{
5493    const uint8_t* base = (const uint8_t*)pkg;
5494    status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset),
5495                                  header->dataEnd, "ResTable_package");
5496    if (err != NO_ERROR) {
5497        return (mError=err);
5498    }
5499
5500    const uint32_t pkgSize = dtohl(pkg->header.size);
5501
5502    if (dtohl(pkg->typeStrings) >= pkgSize) {
5503        ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.",
5504             dtohl(pkg->typeStrings), pkgSize);
5505        return (mError=BAD_TYPE);
5506    }
5507    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5508        ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.",
5509             dtohl(pkg->typeStrings));
5510        return (mError=BAD_TYPE);
5511    }
5512    if (dtohl(pkg->keyStrings) >= pkgSize) {
5513        ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.",
5514             dtohl(pkg->keyStrings), pkgSize);
5515        return (mError=BAD_TYPE);
5516    }
5517    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5518        ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.",
5519             dtohl(pkg->keyStrings));
5520        return (mError=BAD_TYPE);
5521    }
5522
5523    uint32_t id = dtohl(pkg->id);
5524    KeyedVector<uint8_t, IdmapEntries> idmapEntries;
5525
5526    if (header->resourceIDMap != NULL) {
5527        uint8_t targetPackageId = 0;
5528        status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize, &targetPackageId, &idmapEntries);
5529        if (err != NO_ERROR) {
5530            ALOGW("Overlay is broken");
5531            return (mError=err);
5532        }
5533        id = targetPackageId;
5534    }
5535
5536    if (id >= 256) {
5537        LOG_ALWAYS_FATAL("Package id out of range");
5538        return NO_ERROR;
5539    } else if (id == 0) {
5540        // This is a library so assign an ID
5541        id = mNextPackageId++;
5542    }
5543
5544    PackageGroup* group = NULL;
5545    Package* package = new Package(this, header, pkg);
5546    if (package == NULL) {
5547        return (mError=NO_MEMORY);
5548    }
5549
5550    err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5551                                   header->dataEnd-(base+dtohl(pkg->typeStrings)));
5552    if (err != NO_ERROR) {
5553        delete group;
5554        delete package;
5555        return (mError=err);
5556    }
5557
5558    err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5559                                  header->dataEnd-(base+dtohl(pkg->keyStrings)));
5560    if (err != NO_ERROR) {
5561        delete group;
5562        delete package;
5563        return (mError=err);
5564    }
5565
5566    size_t idx = mPackageMap[id];
5567    if (idx == 0) {
5568        idx = mPackageGroups.size() + 1;
5569
5570        char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5571        strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5572        group = new PackageGroup(this, String16(tmpName), id);
5573        if (group == NULL) {
5574            delete package;
5575            return (mError=NO_MEMORY);
5576        }
5577
5578        //printf("Adding new package id %d at index %d\n", id, idx);
5579        err = mPackageGroups.add(group);
5580        if (err < NO_ERROR) {
5581            return (mError=err);
5582        }
5583
5584        mPackageMap[id] = static_cast<uint8_t>(idx);
5585
5586        // Find all packages that reference this package
5587        size_t N = mPackageGroups.size();
5588        for (size_t i = 0; i < N; i++) {
5589            mPackageGroups[i]->dynamicRefTable.addMapping(
5590                    group->name, static_cast<uint8_t>(group->id));
5591        }
5592    } else {
5593        group = mPackageGroups.itemAt(idx - 1);
5594        if (group == NULL) {
5595            return (mError=UNKNOWN_ERROR);
5596        }
5597    }
5598
5599    err = group->packages.add(package);
5600    if (err < NO_ERROR) {
5601        return (mError=err);
5602    }
5603
5604    // Iterate through all chunks.
5605    const ResChunk_header* chunk =
5606        (const ResChunk_header*)(((const uint8_t*)pkg)
5607                                 + dtohs(pkg->header.headerSize));
5608    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5609    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5610           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5611        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5612                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5613                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5614        const size_t csize = dtohl(chunk->size);
5615        const uint16_t ctype = dtohs(chunk->type);
5616        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5617            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5618            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5619                                 endPos, "ResTable_typeSpec");
5620            if (err != NO_ERROR) {
5621                return (mError=err);
5622            }
5623
5624            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5625            const size_t newEntryCount = dtohl(typeSpec->entryCount);
5626
5627            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5628                                    (void*)(base-(const uint8_t*)chunk),
5629                                    dtohs(typeSpec->header.type),
5630                                    dtohs(typeSpec->header.headerSize),
5631                                    (void*)typeSpecSize));
5632            // look for block overrun or int overflow when multiplying by 4
5633            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5634                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5635                    > typeSpecSize)) {
5636                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5637                        (void*)(dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5638                        (void*)typeSpecSize);
5639                return (mError=BAD_TYPE);
5640            }
5641
5642            if (typeSpec->id == 0) {
5643                ALOGW("ResTable_type has an id of 0.");
5644                return (mError=BAD_TYPE);
5645            }
5646
5647            if (newEntryCount > 0) {
5648                uint8_t typeIndex = typeSpec->id - 1;
5649                ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id);
5650                if (idmapIndex >= 0) {
5651                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5652                }
5653
5654                TypeList& typeList = group->types.editItemAt(typeIndex);
5655                if (!typeList.isEmpty()) {
5656                    const Type* existingType = typeList[0];
5657                    if (existingType->entryCount != newEntryCount && idmapIndex < 0) {
5658                        ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5659                                (int) newEntryCount, (int) existingType->entryCount);
5660                        // We should normally abort here, but some legacy apps declare
5661                        // resources in the 'android' package (old bug in AAPT).
5662                    }
5663                }
5664
5665                Type* t = new Type(header, package, newEntryCount);
5666                t->typeSpec = typeSpec;
5667                t->typeSpecFlags = (const uint32_t*)(
5668                        ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5669                if (idmapIndex >= 0) {
5670                    t->idmapEntries = idmapEntries[idmapIndex];
5671                }
5672                typeList.add(t);
5673                group->largestTypeId = max(group->largestTypeId, typeSpec->id);
5674            } else {
5675                ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id);
5676            }
5677
5678        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5679            const ResTable_type* type = (const ResTable_type*)(chunk);
5680            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5681                                 endPos, "ResTable_type");
5682            if (err != NO_ERROR) {
5683                return (mError=err);
5684            }
5685
5686            const uint32_t typeSize = dtohl(type->header.size);
5687            const size_t newEntryCount = dtohl(type->entryCount);
5688
5689            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5690                                    (void*)(base-(const uint8_t*)chunk),
5691                                    dtohs(type->header.type),
5692                                    dtohs(type->header.headerSize),
5693                                    (void*)typeSize));
5694            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5695                    > typeSize) {
5696                ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.",
5697                        (void*)(dtohs(type->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5698                        typeSize);
5699                return (mError=BAD_TYPE);
5700            }
5701
5702            if (newEntryCount != 0
5703                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5704                ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.",
5705                     dtohl(type->entriesStart), typeSize);
5706                return (mError=BAD_TYPE);
5707            }
5708
5709            if (type->id == 0) {
5710                ALOGW("ResTable_type has an id of 0.");
5711                return (mError=BAD_TYPE);
5712            }
5713
5714            if (newEntryCount > 0) {
5715                uint8_t typeIndex = type->id - 1;
5716                ssize_t idmapIndex = idmapEntries.indexOfKey(type->id);
5717                if (idmapIndex >= 0) {
5718                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5719                }
5720
5721                TypeList& typeList = group->types.editItemAt(typeIndex);
5722                if (typeList.isEmpty()) {
5723                    ALOGE("No TypeSpec for type %d", type->id);
5724                    return (mError=BAD_TYPE);
5725                }
5726
5727                Type* t = typeList.editItemAt(typeList.size() - 1);
5728                if (newEntryCount != t->entryCount) {
5729                    ALOGE("ResTable_type entry count inconsistent: given %d, previously %d",
5730                        (int)newEntryCount, (int)t->entryCount);
5731                    return (mError=BAD_TYPE);
5732                }
5733
5734                if (t->package != package) {
5735                    ALOGE("No TypeSpec for type %d", type->id);
5736                    return (mError=BAD_TYPE);
5737                }
5738
5739                t->configs.add(type);
5740
5741                TABLE_GETENTRY(
5742                    ResTable_config thisConfig;
5743                    thisConfig.copyFromDtoH(type->config);
5744                    ALOGI("Adding config to type %d: %s\n",
5745                          type->id, thisConfig.toString().string()));
5746            } else {
5747                ALOGV("Skipping empty ResTable_type for type %d", type->id);
5748            }
5749
5750        } else if (ctype == RES_TABLE_LIBRARY_TYPE) {
5751            if (group->dynamicRefTable.entries().size() == 0) {
5752                status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk);
5753                if (err != NO_ERROR) {
5754                    return (mError=err);
5755                }
5756
5757                // Fill in the reference table with the entries we already know about.
5758                size_t N = mPackageGroups.size();
5759                for (size_t i = 0; i < N; i++) {
5760                    group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id);
5761                }
5762            } else {
5763                ALOGW("Found multiple library tables, ignoring...");
5764            }
5765        } else {
5766            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5767                                          endPos, "ResTable_package:unknown");
5768            if (err != NO_ERROR) {
5769                return (mError=err);
5770            }
5771        }
5772        chunk = (const ResChunk_header*)
5773            (((const uint8_t*)chunk) + csize);
5774    }
5775
5776    return NO_ERROR;
5777}
5778
5779DynamicRefTable::DynamicRefTable(uint8_t packageId)
5780    : mAssignedPackageId(packageId)
5781{
5782    memset(mLookupTable, 0, sizeof(mLookupTable));
5783
5784    // Reserved package ids
5785    mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
5786    mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
5787}
5788
5789status_t DynamicRefTable::load(const ResTable_lib_header* const header)
5790{
5791    const uint32_t entryCount = dtohl(header->count);
5792    const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount;
5793    const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize);
5794    if (sizeOfEntries > expectedSize) {
5795        ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).",
5796                expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry));
5797        return UNKNOWN_ERROR;
5798    }
5799
5800    const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) +
5801            dtohl(header->header.headerSize));
5802    for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
5803        uint32_t packageId = dtohl(entry->packageId);
5804        char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)];
5805        strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t));
5806        LIB_NOISY(ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(),
5807                dtohl(entry->packageId)));
5808        if (packageId >= 256) {
5809            ALOGE("Bad package id 0x%08x", packageId);
5810            return UNKNOWN_ERROR;
5811        }
5812        mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId);
5813        entry = entry + 1;
5814    }
5815    return NO_ERROR;
5816}
5817
5818status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId)
5819{
5820    ssize_t index = mEntries.indexOfKey(packageName);
5821    if (index < 0) {
5822        return UNKNOWN_ERROR;
5823    }
5824    mLookupTable[mEntries.valueAt(index)] = packageId;
5825    return NO_ERROR;
5826}
5827
5828status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const {
5829    uint32_t res = *resId;
5830    size_t packageId = Res_GETPACKAGE(res) + 1;
5831
5832    if (packageId == APP_PACKAGE_ID) {
5833        // No lookup needs to be done, app package IDs are absolute.
5834        return NO_ERROR;
5835    }
5836
5837    if (packageId == 0) {
5838        // The package ID is 0x00. That means that a shared library is accessing
5839        // its own local resource, so we fix up the resource with the calling
5840        // package ID.
5841        *resId |= ((uint32_t) mAssignedPackageId) << 24;
5842        return NO_ERROR;
5843    }
5844
5845    // Do a proper lookup.
5846    uint8_t translatedId = mLookupTable[packageId];
5847    if (translatedId == 0) {
5848        ALOGV("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.",
5849                (uint8_t)mAssignedPackageId, (uint8_t)packageId);
5850        for (size_t i = 0; i < 256; i++) {
5851            if (mLookupTable[i] != 0) {
5852                ALOGV("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]);
5853            }
5854        }
5855        return UNKNOWN_ERROR;
5856    }
5857
5858    *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24);
5859    return NO_ERROR;
5860}
5861
5862status_t DynamicRefTable::lookupResourceValue(Res_value* value) const {
5863    if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE) {
5864        return NO_ERROR;
5865    }
5866
5867    status_t err = lookupResourceId(&value->data);
5868    if (err != NO_ERROR) {
5869        return err;
5870    }
5871
5872    value->dataType = Res_value::TYPE_REFERENCE;
5873    return NO_ERROR;
5874}
5875
5876struct IdmapTypeMap {
5877    ssize_t overlayTypeId;
5878    size_t entryOffset;
5879    Vector<uint32_t> entryMap;
5880};
5881
5882status_t ResTable::createIdmap(const ResTable& overlay,
5883        uint32_t targetCrc, uint32_t overlayCrc,
5884        const char* targetPath, const char* overlayPath,
5885        void** outData, size_t* outSize) const
5886{
5887    // see README for details on the format of map
5888    if (mPackageGroups.size() == 0) {
5889        ALOGW("idmap: target package has no package groups, cannot create idmap\n");
5890        return UNKNOWN_ERROR;
5891    }
5892
5893    if (mPackageGroups[0]->packages.size() == 0) {
5894        ALOGW("idmap: target package has no packages in its first package group, "
5895                "cannot create idmap\n");
5896        return UNKNOWN_ERROR;
5897    }
5898
5899    KeyedVector<uint8_t, IdmapTypeMap> map;
5900
5901    // overlaid packages are assumed to contain only one package group
5902    const PackageGroup* pg = mPackageGroups[0];
5903
5904    // starting size is header
5905    *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES;
5906
5907    // target package id and number of types in map
5908    *outSize += 2 * sizeof(uint16_t);
5909
5910    // overlay packages are assumed to contain only one package group
5911    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5912
5913    for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) {
5914        const TypeList& typeList = pg->types[typeIndex];
5915        if (typeList.isEmpty()) {
5916            continue;
5917        }
5918
5919        const Type* typeConfigs = typeList[0];
5920
5921        IdmapTypeMap typeMap;
5922        typeMap.overlayTypeId = -1;
5923        typeMap.entryOffset = 0;
5924
5925        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5926            uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex);
5927            resource_name resName;
5928            if (!this->getResourceName(resID, false, &resName)) {
5929                if (typeMap.entryMap.isEmpty()) {
5930                    typeMap.entryOffset++;
5931                }
5932                continue;
5933            }
5934
5935            const String16 overlayType(resName.type, resName.typeLen);
5936            const String16 overlayName(resName.name, resName.nameLen);
5937            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5938                                                              overlayName.size(),
5939                                                              overlayType.string(),
5940                                                              overlayType.size(),
5941                                                              overlayPackage.string(),
5942                                                              overlayPackage.size());
5943            if (overlayResID == 0) {
5944                if (typeMap.entryMap.isEmpty()) {
5945                    typeMap.entryOffset++;
5946                }
5947                continue;
5948            }
5949
5950            if (typeMap.overlayTypeId == -1) {
5951                typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1;
5952            }
5953
5954            if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) {
5955                ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x"
5956                        " but entries should map to resources of type %02x",
5957                        resID, overlayResID, typeMap.overlayTypeId);
5958                return BAD_TYPE;
5959            }
5960
5961            if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) {
5962                // Resize to accomodate this entry and the 0's in between.
5963                if (typeMap.entryMap.resize((entryIndex - typeMap.entryOffset) + 1) < 0) {
5964                    return NO_MEMORY;
5965                }
5966                typeMap.entryMap.editTop() = Res_GETENTRY(overlayResID);
5967            } else {
5968                typeMap.entryMap.add(Res_GETENTRY(overlayResID));
5969            }
5970        }
5971
5972        if (!typeMap.entryMap.isEmpty()) {
5973            if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) {
5974                return NO_MEMORY;
5975            }
5976            *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t));
5977        }
5978    }
5979
5980    if (map.isEmpty()) {
5981        ALOGW("idmap: no resources in overlay package present in base package");
5982        return UNKNOWN_ERROR;
5983    }
5984
5985    if ((*outData = malloc(*outSize)) == NULL) {
5986        return NO_MEMORY;
5987    }
5988
5989    uint32_t* data = (uint32_t*)*outData;
5990    *data++ = htodl(IDMAP_MAGIC);
5991    *data++ = htodl(IDMAP_CURRENT_VERSION);
5992    *data++ = htodl(targetCrc);
5993    *data++ = htodl(overlayCrc);
5994    const char* paths[] = { targetPath, overlayPath };
5995    for (int j = 0; j < 2; ++j) {
5996        char* p = (char*)data;
5997        const char* path = paths[j];
5998        const size_t I = strlen(path);
5999        if (I > 255) {
6000            ALOGV("path exceeds expected 255 characters: %s\n", path);
6001            return UNKNOWN_ERROR;
6002        }
6003        for (size_t i = 0; i < 256; ++i) {
6004            *p++ = i < I ? path[i] : '\0';
6005        }
6006        data += 256 / sizeof(uint32_t);
6007    }
6008    const size_t mapSize = map.size();
6009    uint16_t* typeData = reinterpret_cast<uint16_t*>(data);
6010    *typeData++ = htods(pg->id);
6011    *typeData++ = htods(mapSize);
6012    for (size_t i = 0; i < mapSize; ++i) {
6013        uint8_t targetTypeId = map.keyAt(i);
6014        const IdmapTypeMap& typeMap = map[i];
6015        *typeData++ = htods(targetTypeId + 1);
6016        *typeData++ = htods(typeMap.overlayTypeId);
6017        *typeData++ = htods(typeMap.entryMap.size());
6018        *typeData++ = htods(typeMap.entryOffset);
6019
6020        const size_t entryCount = typeMap.entryMap.size();
6021        uint32_t* entries = reinterpret_cast<uint32_t*>(typeData);
6022        for (size_t j = 0; j < entryCount; j++) {
6023            entries[j] = htodl(typeMap.entryMap[j]);
6024        }
6025        typeData += entryCount * 2;
6026    }
6027
6028    return NO_ERROR;
6029}
6030
6031bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
6032                            uint32_t* pVersion,
6033                            uint32_t* pTargetCrc, uint32_t* pOverlayCrc,
6034                            String8* pTargetPath, String8* pOverlayPath)
6035{
6036    const uint32_t* map = (const uint32_t*)idmap;
6037    if (!assertIdmapHeader(map, sizeBytes)) {
6038        return false;
6039    }
6040    if (pVersion) {
6041        *pVersion = dtohl(map[1]);
6042    }
6043    if (pTargetCrc) {
6044        *pTargetCrc = dtohl(map[2]);
6045    }
6046    if (pOverlayCrc) {
6047        *pOverlayCrc = dtohl(map[3]);
6048    }
6049    if (pTargetPath) {
6050        pTargetPath->setTo(reinterpret_cast<const char*>(map + 4));
6051    }
6052    if (pOverlayPath) {
6053        pOverlayPath->setTo(reinterpret_cast<const char*>(map + 4 + 256 / sizeof(uint32_t)));
6054    }
6055    return true;
6056}
6057
6058
6059#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
6060
6061#define CHAR16_ARRAY_EQ(constant, var, len) \
6062        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
6063
6064static void print_complex(uint32_t complex, bool isFraction)
6065{
6066    const float MANTISSA_MULT =
6067        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
6068    const float RADIX_MULTS[] = {
6069        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
6070        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
6071    };
6072
6073    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
6074                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
6075            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
6076                            & Res_value::COMPLEX_RADIX_MASK];
6077    printf("%f", value);
6078
6079    if (!isFraction) {
6080        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6081            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
6082            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
6083            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
6084            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
6085            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
6086            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
6087            default: printf(" (unknown unit)"); break;
6088        }
6089    } else {
6090        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6091            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
6092            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
6093            default: printf(" (unknown unit)"); break;
6094        }
6095    }
6096}
6097
6098// Normalize a string for output
6099String8 ResTable::normalizeForOutput( const char *input )
6100{
6101    String8 ret;
6102    char buff[2];
6103    buff[1] = '\0';
6104
6105    while (*input != '\0') {
6106        switch (*input) {
6107            // All interesting characters are in the ASCII zone, so we are making our own lives
6108            // easier by scanning the string one byte at a time.
6109        case '\\':
6110            ret += "\\\\";
6111            break;
6112        case '\n':
6113            ret += "\\n";
6114            break;
6115        case '"':
6116            ret += "\\\"";
6117            break;
6118        default:
6119            buff[0] = *input;
6120            ret += buff;
6121            break;
6122        }
6123
6124        input++;
6125    }
6126
6127    return ret;
6128}
6129
6130void ResTable::print_value(const Package* pkg, const Res_value& value) const
6131{
6132    if (value.dataType == Res_value::TYPE_NULL) {
6133        printf("(null)\n");
6134    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
6135        printf("(reference) 0x%08x\n", value.data);
6136    } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) {
6137        printf("(dynamic reference) 0x%08x\n", value.data);
6138    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
6139        printf("(attribute) 0x%08x\n", value.data);
6140    } else if (value.dataType == Res_value::TYPE_STRING) {
6141        size_t len;
6142        const char* str8 = pkg->header->values.string8At(
6143                value.data, &len);
6144        if (str8 != NULL) {
6145            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
6146        } else {
6147            const char16_t* str16 = pkg->header->values.stringAt(
6148                    value.data, &len);
6149            if (str16 != NULL) {
6150                printf("(string16) \"%s\"\n",
6151                    normalizeForOutput(String8(str16, len).string()).string());
6152            } else {
6153                printf("(string) null\n");
6154            }
6155        }
6156    } else if (value.dataType == Res_value::TYPE_FLOAT) {
6157        printf("(float) %g\n", *(const float*)&value.data);
6158    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
6159        printf("(dimension) ");
6160        print_complex(value.data, false);
6161        printf("\n");
6162    } else if (value.dataType == Res_value::TYPE_FRACTION) {
6163        printf("(fraction) ");
6164        print_complex(value.data, true);
6165        printf("\n");
6166    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
6167            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
6168        printf("(color) #%08x\n", value.data);
6169    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
6170        printf("(boolean) %s\n", value.data ? "true" : "false");
6171    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
6172            || value.dataType <= Res_value::TYPE_LAST_INT) {
6173        printf("(int) 0x%08x or %d\n", value.data, value.data);
6174    } else {
6175        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
6176               (int)value.dataType, (int)value.data,
6177               (int)value.size, (int)value.res0);
6178    }
6179}
6180
6181void ResTable::print(bool inclValues) const
6182{
6183    if (mError != 0) {
6184        printf("mError=0x%x (%s)\n", mError, strerror(mError));
6185    }
6186#if 0
6187    char localeStr[RESTABLE_MAX_LOCALE_LEN];
6188    mParams.getBcp47Locale(localeStr);
6189    printf("mParams=%s,\n" localeStr);
6190#endif
6191    size_t pgCount = mPackageGroups.size();
6192    printf("Package Groups (%d)\n", (int)pgCount);
6193    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
6194        const PackageGroup* pg = mPackageGroups[pgIndex];
6195        printf("Package Group %d id=%d packageCount=%d name=%s\n",
6196                (int)pgIndex, pg->id, (int)pg->packages.size(),
6197                String8(pg->name).string());
6198
6199        size_t pkgCount = pg->packages.size();
6200        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
6201            const Package* pkg = pg->packages[pkgIndex];
6202            printf("  Package %d id=%d name=%s\n", (int)pkgIndex,
6203                    pkg->package->id, String8(String16(pkg->package->name)).string());
6204        }
6205
6206        for (size_t typeIndex=0; typeIndex < pg->types.size(); typeIndex++) {
6207            const TypeList& typeList = pg->types[typeIndex];
6208            if (typeList.isEmpty()) {
6209                //printf("    type %d NULL\n", (int)typeIndex);
6210                continue;
6211            }
6212            const Type* typeConfigs = typeList[0];
6213            const size_t NTC = typeConfigs->configs.size();
6214            printf("    type %d configCount=%d entryCount=%d\n",
6215                   (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
6216            if (typeConfigs->typeSpecFlags != NULL) {
6217                for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
6218                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6219                                | (0x00ff0000 & ((typeIndex+1)<<16))
6220                                | (0x0000ffff & (entryIndex));
6221                    // Since we are creating resID without actually
6222                    // iterating over them, we have no idea which is a
6223                    // dynamic reference. We must check.
6224                    pg->dynamicRefTable.lookupResourceId(&resID);
6225
6226                    resource_name resName;
6227                    if (this->getResourceName(resID, true, &resName)) {
6228                        String8 type8;
6229                        String8 name8;
6230                        if (resName.type8 != NULL) {
6231                            type8 = String8(resName.type8, resName.typeLen);
6232                        } else {
6233                            type8 = String8(resName.type, resName.typeLen);
6234                        }
6235                        if (resName.name8 != NULL) {
6236                            name8 = String8(resName.name8, resName.nameLen);
6237                        } else {
6238                            name8 = String8(resName.name, resName.nameLen);
6239                        }
6240                        printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
6241                            resID,
6242                            CHAR16_TO_CSTR(resName.package, resName.packageLen),
6243                            type8.string(), name8.string(),
6244                            dtohl(typeConfigs->typeSpecFlags[entryIndex]));
6245                    } else {
6246                        printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
6247                    }
6248                }
6249            }
6250            for (size_t configIndex=0; configIndex<NTC; configIndex++) {
6251                const ResTable_type* type = typeConfigs->configs[configIndex];
6252                if ((((uint64_t)type)&0x3) != 0) {
6253                    printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
6254                    continue;
6255                }
6256                String8 configStr = type->config.toString();
6257                printf("      config %s:\n", configStr.size() > 0
6258                        ? configStr.string() : "(default)");
6259                size_t entryCount = dtohl(type->entryCount);
6260                uint32_t entriesStart = dtohl(type->entriesStart);
6261                if ((entriesStart&0x3) != 0) {
6262                    printf("      NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart);
6263                    continue;
6264                }
6265                uint32_t typeSize = dtohl(type->header.size);
6266                if ((typeSize&0x3) != 0) {
6267                    printf("      NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize);
6268                    continue;
6269                }
6270                for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
6271
6272                    const uint8_t* const end = ((const uint8_t*)type)
6273                        + dtohl(type->header.size);
6274                    const uint32_t* const eindex = (const uint32_t*)
6275                        (((const uint8_t*)type) + dtohs(type->header.headerSize));
6276
6277                    uint32_t thisOffset = dtohl(eindex[entryIndex]);
6278                    if (thisOffset == ResTable_type::NO_ENTRY) {
6279                        continue;
6280                    }
6281
6282                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6283                                | (0x00ff0000 & ((typeIndex+1)<<16))
6284                                | (0x0000ffff & (entryIndex));
6285                    pg->dynamicRefTable.lookupResourceId(&resID);
6286                    resource_name resName;
6287                    if (this->getResourceName(resID, true, &resName)) {
6288                        String8 type8;
6289                        String8 name8;
6290                        if (resName.type8 != NULL) {
6291                            type8 = String8(resName.type8, resName.typeLen);
6292                        } else {
6293                            type8 = String8(resName.type, resName.typeLen);
6294                        }
6295                        if (resName.name8 != NULL) {
6296                            name8 = String8(resName.name8, resName.nameLen);
6297                        } else {
6298                            name8 = String8(resName.name, resName.nameLen);
6299                        }
6300                        printf("        resource 0x%08x %s:%s/%s: ", resID,
6301                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
6302                                type8.string(), name8.string());
6303                    } else {
6304                        printf("        INVALID RESOURCE 0x%08x: ", resID);
6305                    }
6306                    if ((thisOffset&0x3) != 0) {
6307                        printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset);
6308                        continue;
6309                    }
6310                    if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
6311                        printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n",
6312                               entriesStart, thisOffset, typeSize);
6313                        continue;
6314                    }
6315
6316                    const ResTable_entry* ent = (const ResTable_entry*)
6317                        (((const uint8_t*)type) + entriesStart + thisOffset);
6318                    if (((entriesStart + thisOffset)&0x3) != 0) {
6319                        printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n",
6320                             (entriesStart + thisOffset));
6321                        continue;
6322                    }
6323
6324                    uintptr_t esize = dtohs(ent->size);
6325                    if ((esize&0x3) != 0) {
6326                        printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize);
6327                        continue;
6328                    }
6329                    if ((thisOffset+esize) > typeSize) {
6330                        printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n",
6331                               entriesStart, thisOffset, (void *)esize, typeSize);
6332                        continue;
6333                    }
6334
6335                    const Res_value* valuePtr = NULL;
6336                    const ResTable_map_entry* bagPtr = NULL;
6337                    Res_value value;
6338                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
6339                        printf("<bag>");
6340                        bagPtr = (const ResTable_map_entry*)ent;
6341                    } else {
6342                        valuePtr = (const Res_value*)
6343                            (((const uint8_t*)ent) + esize);
6344                        value.copyFrom_dtoh(*valuePtr);
6345                        printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
6346                               (int)value.dataType, (int)value.data,
6347                               (int)value.size, (int)value.res0);
6348                    }
6349
6350                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
6351                        printf(" (PUBLIC)");
6352                    }
6353                    printf("\n");
6354
6355                    if (inclValues) {
6356                        if (valuePtr != NULL) {
6357                            printf("          ");
6358                            print_value(typeConfigs->package, value);
6359                        } else if (bagPtr != NULL) {
6360                            const int N = dtohl(bagPtr->count);
6361                            const uint8_t* baseMapPtr = (const uint8_t*)ent;
6362                            size_t mapOffset = esize;
6363                            const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6364                            const uint32_t parent = dtohl(bagPtr->parent.ident);
6365                            uint32_t resolvedParent = parent;
6366                            status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent);
6367                            if (err != NO_ERROR) {
6368                                resolvedParent = 0;
6369                            }
6370                            printf("          Parent=0x%08x(Resolved=0x%08x), Count=%d\n",
6371                                    parent, resolvedParent, N);
6372                            for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
6373                                printf("          #%i (Key=0x%08x): ",
6374                                    i, dtohl(mapPtr->name.ident));
6375                                value.copyFrom_dtoh(mapPtr->value);
6376                                print_value(typeConfigs->package, value);
6377                                const size_t size = dtohs(mapPtr->value.size);
6378                                mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
6379                                mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6380                            }
6381                        }
6382                    }
6383                }
6384            }
6385        }
6386    }
6387}
6388
6389}   // namespace android
6390