ResourceTypes.cpp revision 8d5667d2a283bc9e35cfe8a7e77c9143c8957004 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "ResourceType"
18//#define LOG_NDEBUG 0
19
20#include <androidfw/ByteBucketArray.h>
21#include <androidfw/ResourceTypes.h>
22#include <androidfw/TypeWrappers.h>
23#include <utils/Atomic.h>
24#include <utils/ByteOrder.h>
25#include <utils/Debug.h>
26#include <utils/Log.h>
27#include <utils/String16.h>
28#include <utils/String8.h>
29
30#include <stdlib.h>
31#include <string.h>
32#include <memory.h>
33#include <ctype.h>
34#include <stdint.h>
35#include <stddef.h>
36
37#ifndef INT32_MAX
38#define INT32_MAX ((int32_t)(2147483647))
39#endif
40
41#define STRING_POOL_NOISY(x) //x
42#define XML_NOISY(x) //x
43#define TABLE_NOISY(x) //x
44#define TABLE_GETENTRY(x) //x
45#define TABLE_SUPER_NOISY(x) //x
46#define LOAD_TABLE_NOISY(x) //x
47#define TABLE_THEME(x) //x
48#define LIB_NOISY(x) //x
49
50namespace android {
51
52#ifdef HAVE_WINSOCK
53#undef  nhtol
54#undef  htonl
55
56#ifdef HAVE_LITTLE_ENDIAN
57#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
58#define htonl(x)    ntohl(x)
59#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
60#define htons(x)    ntohs(x)
61#else
62#define ntohl(x)    (x)
63#define htonl(x)    (x)
64#define ntohs(x)    (x)
65#define htons(x)    (x)
66#endif
67#endif
68
69#define IDMAP_MAGIC             0x504D4449
70#define IDMAP_CURRENT_VERSION   0x00000001
71
72#define APP_PACKAGE_ID      0x7f
73#define SYS_PACKAGE_ID      0x01
74
75// Standard C isspace() is only required to look at the low byte of its input, so
76// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
77// any high-byte UTF-16 code point is not whitespace.
78inline int isspace16(char16_t c) {
79    return (c < 0x0080 && isspace(c));
80}
81
82template<typename T>
83inline static T max(T a, T b) {
84    return a > b ? a : b;
85}
86
87// range checked; guaranteed to NUL-terminate within the stated number of available slots
88// NOTE: if this truncates the dst string due to running out of space, no attempt is
89// made to avoid splitting surrogate pairs.
90static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
91{
92    uint16_t* last = dst + avail - 1;
93    while (*src && (dst < last)) {
94        char16_t s = dtohs(*src);
95        *dst++ = s;
96        src++;
97    }
98    *dst = 0;
99}
100
101static status_t validate_chunk(const ResChunk_header* chunk,
102                               size_t minSize,
103                               const uint8_t* dataEnd,
104                               const char* name)
105{
106    const uint16_t headerSize = dtohs(chunk->headerSize);
107    const uint32_t size = dtohl(chunk->size);
108
109    if (headerSize >= minSize) {
110        if (headerSize <= size) {
111            if (((headerSize|size)&0x3) == 0) {
112                if ((size_t)size <= (size_t)(dataEnd-((const uint8_t*)chunk))) {
113                    return NO_ERROR;
114                }
115                ALOGW("%s data size 0x%x extends beyond resource end %p.",
116                     name, size, (void*)(dataEnd-((const uint8_t*)chunk)));
117                return BAD_TYPE;
118            }
119            ALOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
120                 name, (int)size, (int)headerSize);
121            return BAD_TYPE;
122        }
123        ALOGW("%s size 0x%x is smaller than header size 0x%x.",
124             name, size, headerSize);
125        return BAD_TYPE;
126    }
127    ALOGW("%s header size 0x%04x is too small.",
128         name, headerSize);
129    return BAD_TYPE;
130}
131
132static void fill9patchOffsets(Res_png_9patch* patch) {
133    patch->xDivsOffset = sizeof(Res_png_9patch);
134    patch->yDivsOffset = patch->xDivsOffset + (patch->numXDivs * sizeof(int32_t));
135    patch->colorsOffset = patch->yDivsOffset + (patch->numYDivs * sizeof(int32_t));
136}
137
138inline void Res_value::copyFrom_dtoh(const Res_value& src)
139{
140    size = dtohs(src.size);
141    res0 = src.res0;
142    dataType = src.dataType;
143    data = dtohl(src.data);
144}
145
146void Res_png_9patch::deviceToFile()
147{
148    int32_t* xDivs = getXDivs();
149    for (int i = 0; i < numXDivs; i++) {
150        xDivs[i] = htonl(xDivs[i]);
151    }
152    int32_t* yDivs = getYDivs();
153    for (int i = 0; i < numYDivs; i++) {
154        yDivs[i] = htonl(yDivs[i]);
155    }
156    paddingLeft = htonl(paddingLeft);
157    paddingRight = htonl(paddingRight);
158    paddingTop = htonl(paddingTop);
159    paddingBottom = htonl(paddingBottom);
160    uint32_t* colors = getColors();
161    for (int i=0; i<numColors; i++) {
162        colors[i] = htonl(colors[i]);
163    }
164}
165
166void Res_png_9patch::fileToDevice()
167{
168    int32_t* xDivs = getXDivs();
169    for (int i = 0; i < numXDivs; i++) {
170        xDivs[i] = ntohl(xDivs[i]);
171    }
172    int32_t* yDivs = getYDivs();
173    for (int i = 0; i < numYDivs; i++) {
174        yDivs[i] = ntohl(yDivs[i]);
175    }
176    paddingLeft = ntohl(paddingLeft);
177    paddingRight = ntohl(paddingRight);
178    paddingTop = ntohl(paddingTop);
179    paddingBottom = ntohl(paddingBottom);
180    uint32_t* colors = getColors();
181    for (int i=0; i<numColors; i++) {
182        colors[i] = ntohl(colors[i]);
183    }
184}
185
186size_t Res_png_9patch::serializedSize() const
187{
188    // The size of this struct is 32 bytes on the 32-bit target system
189    // 4 * int8_t
190    // 4 * int32_t
191    // 3 * uint32_t
192    return 32
193            + numXDivs * sizeof(int32_t)
194            + numYDivs * sizeof(int32_t)
195            + numColors * sizeof(uint32_t);
196}
197
198void* Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
199                                const int32_t* yDivs, const uint32_t* colors)
200{
201    // Use calloc since we're going to leave a few holes in the data
202    // and want this to run cleanly under valgrind
203    void* newData = calloc(1, patch.serializedSize());
204    serialize(patch, xDivs, yDivs, colors, newData);
205    return newData;
206}
207
208void Res_png_9patch::serialize(const Res_png_9patch& patch, const int32_t* xDivs,
209                               const int32_t* yDivs, const uint32_t* colors, void* outData)
210{
211    uint8_t* data = (uint8_t*) outData;
212    memcpy(data, &patch.wasDeserialized, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
213    memcpy(data + 12, &patch.paddingLeft, 16);   // copy paddingXXXX
214    data += 32;
215
216    memcpy(data, xDivs, patch.numXDivs * sizeof(int32_t));
217    data +=  patch.numXDivs * sizeof(int32_t);
218    memcpy(data, yDivs, patch.numYDivs * sizeof(int32_t));
219    data +=  patch.numYDivs * sizeof(int32_t);
220    memcpy(data, colors, patch.numColors * sizeof(uint32_t));
221
222    fill9patchOffsets(reinterpret_cast<Res_png_9patch*>(outData));
223}
224
225static bool assertIdmapHeader(const void* idmap, size_t size) {
226    if (reinterpret_cast<uintptr_t>(idmap) & 0x03) {
227        ALOGE("idmap: header is not word aligned");
228        return false;
229    }
230
231    if (size < ResTable::IDMAP_HEADER_SIZE_BYTES) {
232        ALOGW("idmap: header too small (%d bytes)", (uint32_t) size);
233        return false;
234    }
235
236    const uint32_t magic = htodl(*reinterpret_cast<const uint32_t*>(idmap));
237    if (magic != IDMAP_MAGIC) {
238        ALOGW("idmap: no magic found in header (is 0x%08x, expected 0x%08x)",
239             magic, IDMAP_MAGIC);
240        return false;
241    }
242
243    const uint32_t version = htodl(*(reinterpret_cast<const uint32_t*>(idmap) + 1));
244    if (version != IDMAP_CURRENT_VERSION) {
245        // We are strict about versions because files with this format are
246        // auto-generated and don't need backwards compatibility.
247        ALOGW("idmap: version mismatch in header (is 0x%08x, expected 0x%08x)",
248                version, IDMAP_CURRENT_VERSION);
249        return false;
250    }
251    return true;
252}
253
254class IdmapEntries {
255public:
256    IdmapEntries() : mData(NULL) {}
257
258    bool hasEntries() const {
259        if (mData == NULL) {
260            return false;
261        }
262
263        return (dtohs(*mData) > 0);
264    }
265
266    size_t byteSize() const {
267        if (mData == NULL) {
268            return 0;
269        }
270        uint16_t entryCount = dtohs(mData[2]);
271        return (sizeof(uint16_t) * 4) + (sizeof(uint32_t) * static_cast<size_t>(entryCount));
272    }
273
274    uint8_t targetTypeId() const {
275        if (mData == NULL) {
276            return 0;
277        }
278        return dtohs(mData[0]);
279    }
280
281    uint8_t overlayTypeId() const {
282        if (mData == NULL) {
283            return 0;
284        }
285        return dtohs(mData[1]);
286    }
287
288    status_t setTo(const void* entryHeader, size_t size) {
289        if (reinterpret_cast<uintptr_t>(entryHeader) & 0x03) {
290            ALOGE("idmap: entry header is not word aligned");
291            return UNKNOWN_ERROR;
292        }
293
294        if (size < sizeof(uint16_t) * 4) {
295            ALOGE("idmap: entry header is too small (%u bytes)", (uint32_t) size);
296            return UNKNOWN_ERROR;
297        }
298
299        const uint16_t* header = reinterpret_cast<const uint16_t*>(entryHeader);
300        const uint16_t targetTypeId = dtohs(header[0]);
301        const uint16_t overlayTypeId = dtohs(header[1]);
302        if (targetTypeId == 0 || overlayTypeId == 0 || targetTypeId > 255 || overlayTypeId > 255) {
303            ALOGE("idmap: invalid type map (%u -> %u)", targetTypeId, overlayTypeId);
304            return UNKNOWN_ERROR;
305        }
306
307        uint16_t entryCount = dtohs(header[2]);
308        if (size < sizeof(uint32_t) * (entryCount + 2)) {
309            ALOGE("idmap: too small (%u bytes) for the number of entries (%u)",
310                    (uint32_t) size, (uint32_t) entryCount);
311            return UNKNOWN_ERROR;
312        }
313        mData = header;
314        return NO_ERROR;
315    }
316
317    status_t lookup(uint16_t entryId, uint16_t* outEntryId) const {
318        uint16_t entryCount = dtohs(mData[2]);
319        uint16_t offset = dtohs(mData[3]);
320
321        if (entryId < offset) {
322            // The entry is not present in this idmap
323            return BAD_INDEX;
324        }
325
326        entryId -= offset;
327
328        if (entryId >= entryCount) {
329            // The entry is not present in this idmap
330            return BAD_INDEX;
331        }
332
333        // It is safe to access the type here without checking the size because
334        // we have checked this when it was first loaded.
335        const uint32_t* entries = reinterpret_cast<const uint32_t*>(mData) + 2;
336        uint32_t mappedEntry = dtohl(entries[entryId]);
337        if (mappedEntry == 0xffffffff) {
338            // This entry is not present in this idmap
339            return BAD_INDEX;
340        }
341        *outEntryId = static_cast<uint16_t>(mappedEntry);
342        return NO_ERROR;
343    }
344
345private:
346    const uint16_t* mData;
347};
348
349status_t parseIdmap(const void* idmap, size_t size, uint8_t* outPackageId, KeyedVector<uint8_t, IdmapEntries>* outMap) {
350    if (!assertIdmapHeader(idmap, size)) {
351        return UNKNOWN_ERROR;
352    }
353
354    size -= ResTable::IDMAP_HEADER_SIZE_BYTES;
355    if (size < sizeof(uint16_t) * 2) {
356        ALOGE("idmap: too small to contain any mapping");
357        return UNKNOWN_ERROR;
358    }
359
360    const uint16_t* data = reinterpret_cast<const uint16_t*>(
361            reinterpret_cast<const uint8_t*>(idmap) + ResTable::IDMAP_HEADER_SIZE_BYTES);
362
363    uint16_t targetPackageId = dtohs(*(data++));
364    if (targetPackageId == 0 || targetPackageId > 255) {
365        ALOGE("idmap: target package ID is invalid (%02x)", targetPackageId);
366        return UNKNOWN_ERROR;
367    }
368
369    uint16_t mapCount = dtohs(*(data++));
370    if (mapCount == 0) {
371        ALOGE("idmap: no mappings");
372        return UNKNOWN_ERROR;
373    }
374
375    if (mapCount > 255) {
376        ALOGW("idmap: too many mappings. Only 255 are possible but %u are present", (uint32_t) mapCount);
377    }
378
379    while (size > sizeof(uint16_t) * 4) {
380        IdmapEntries entries;
381        status_t err = entries.setTo(data, size);
382        if (err != NO_ERROR) {
383            return err;
384        }
385
386        ssize_t index = outMap->add(entries.overlayTypeId(), entries);
387        if (index < 0) {
388            return NO_MEMORY;
389        }
390
391        data += entries.byteSize() / sizeof(uint16_t);
392        size -= entries.byteSize();
393    }
394
395    if (outPackageId != NULL) {
396        *outPackageId = static_cast<uint8_t>(targetPackageId);
397    }
398    return NO_ERROR;
399}
400
401Res_png_9patch* Res_png_9patch::deserialize(void* inData)
402{
403
404    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(inData);
405    patch->wasDeserialized = true;
406    fill9patchOffsets(patch);
407
408    return patch;
409}
410
411// --------------------------------------------------------------------
412// --------------------------------------------------------------------
413// --------------------------------------------------------------------
414
415ResStringPool::ResStringPool()
416    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
417{
418}
419
420ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
421    : mError(NO_INIT), mOwnedData(NULL), mHeader(NULL), mCache(NULL)
422{
423    setTo(data, size, copyData);
424}
425
426ResStringPool::~ResStringPool()
427{
428    uninit();
429}
430
431void ResStringPool::setToEmpty()
432{
433    uninit();
434
435    mOwnedData = calloc(1, sizeof(ResStringPool_header));
436    ResStringPool_header* header = (ResStringPool_header*) mOwnedData;
437    mSize = 0;
438    mEntries = NULL;
439    mStrings = NULL;
440    mStringPoolSize = 0;
441    mEntryStyles = NULL;
442    mStyles = NULL;
443    mStylePoolSize = 0;
444    mHeader = (const ResStringPool_header*) header;
445}
446
447status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
448{
449    if (!data || !size) {
450        return (mError=BAD_TYPE);
451    }
452
453    uninit();
454
455    const bool notDeviceEndian = htods(0xf0) != 0xf0;
456
457    if (copyData || notDeviceEndian) {
458        mOwnedData = malloc(size);
459        if (mOwnedData == NULL) {
460            return (mError=NO_MEMORY);
461        }
462        memcpy(mOwnedData, data, size);
463        data = mOwnedData;
464    }
465
466    mHeader = (const ResStringPool_header*)data;
467
468    if (notDeviceEndian) {
469        ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
470        h->header.headerSize = dtohs(mHeader->header.headerSize);
471        h->header.type = dtohs(mHeader->header.type);
472        h->header.size = dtohl(mHeader->header.size);
473        h->stringCount = dtohl(mHeader->stringCount);
474        h->styleCount = dtohl(mHeader->styleCount);
475        h->flags = dtohl(mHeader->flags);
476        h->stringsStart = dtohl(mHeader->stringsStart);
477        h->stylesStart = dtohl(mHeader->stylesStart);
478    }
479
480    if (mHeader->header.headerSize > mHeader->header.size
481            || mHeader->header.size > size) {
482        ALOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
483                (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
484        return (mError=BAD_TYPE);
485    }
486    mSize = mHeader->header.size;
487    mEntries = (const uint32_t*)
488        (((const uint8_t*)data)+mHeader->header.headerSize);
489
490    if (mHeader->stringCount > 0) {
491        if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount)  // uint32 overflow?
492            || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
493                > size) {
494            ALOGW("Bad string block: entry of %d items extends past data size %d\n",
495                    (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
496                    (int)size);
497            return (mError=BAD_TYPE);
498        }
499
500        size_t charSize;
501        if (mHeader->flags&ResStringPool_header::UTF8_FLAG) {
502            charSize = sizeof(uint8_t);
503        } else {
504            charSize = sizeof(char16_t);
505        }
506
507        // There should be at least space for the smallest string
508        // (2 bytes length, null terminator).
509        if (mHeader->stringsStart >= (mSize - sizeof(uint16_t))) {
510            ALOGW("Bad string block: string pool starts at %d, after total size %d\n",
511                    (int)mHeader->stringsStart, (int)mHeader->header.size);
512            return (mError=BAD_TYPE);
513        }
514
515        mStrings = (const void*)
516            (((const uint8_t*)data) + mHeader->stringsStart);
517
518        if (mHeader->styleCount == 0) {
519            mStringPoolSize = (mSize - mHeader->stringsStart) / charSize;
520        } else {
521            // check invariant: styles starts before end of data
522            if (mHeader->stylesStart >= (mSize - sizeof(uint16_t))) {
523                ALOGW("Bad style block: style block starts at %d past data size of %d\n",
524                    (int)mHeader->stylesStart, (int)mHeader->header.size);
525                return (mError=BAD_TYPE);
526            }
527            // check invariant: styles follow the strings
528            if (mHeader->stylesStart <= mHeader->stringsStart) {
529                ALOGW("Bad style block: style block starts at %d, before strings at %d\n",
530                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
531                return (mError=BAD_TYPE);
532            }
533            mStringPoolSize =
534                (mHeader->stylesStart-mHeader->stringsStart)/charSize;
535        }
536
537        // check invariant: stringCount > 0 requires a string pool to exist
538        if (mStringPoolSize == 0) {
539            ALOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
540            return (mError=BAD_TYPE);
541        }
542
543        if (notDeviceEndian) {
544            size_t i;
545            uint32_t* e = const_cast<uint32_t*>(mEntries);
546            for (i=0; i<mHeader->stringCount; i++) {
547                e[i] = dtohl(mEntries[i]);
548            }
549            if (!(mHeader->flags&ResStringPool_header::UTF8_FLAG)) {
550                const char16_t* strings = (const char16_t*)mStrings;
551                char16_t* s = const_cast<char16_t*>(strings);
552                for (i=0; i<mStringPoolSize; i++) {
553                    s[i] = dtohs(strings[i]);
554                }
555            }
556        }
557
558        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG &&
559                ((uint8_t*)mStrings)[mStringPoolSize-1] != 0) ||
560                (!mHeader->flags&ResStringPool_header::UTF8_FLAG &&
561                ((char16_t*)mStrings)[mStringPoolSize-1] != 0)) {
562            ALOGW("Bad string block: last string is not 0-terminated\n");
563            return (mError=BAD_TYPE);
564        }
565    } else {
566        mStrings = NULL;
567        mStringPoolSize = 0;
568    }
569
570    if (mHeader->styleCount > 0) {
571        mEntryStyles = mEntries + mHeader->stringCount;
572        // invariant: integer overflow in calculating mEntryStyles
573        if (mEntryStyles < mEntries) {
574            ALOGW("Bad string block: integer overflow finding styles\n");
575            return (mError=BAD_TYPE);
576        }
577
578        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
579            ALOGW("Bad string block: entry of %d styles extends past data size %d\n",
580                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
581                    (int)size);
582            return (mError=BAD_TYPE);
583        }
584        mStyles = (const uint32_t*)
585            (((const uint8_t*)data)+mHeader->stylesStart);
586        if (mHeader->stylesStart >= mHeader->header.size) {
587            ALOGW("Bad string block: style pool starts %d, after total size %d\n",
588                    (int)mHeader->stylesStart, (int)mHeader->header.size);
589            return (mError=BAD_TYPE);
590        }
591        mStylePoolSize =
592            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
593
594        if (notDeviceEndian) {
595            size_t i;
596            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
597            for (i=0; i<mHeader->styleCount; i++) {
598                e[i] = dtohl(mEntryStyles[i]);
599            }
600            uint32_t* s = const_cast<uint32_t*>(mStyles);
601            for (i=0; i<mStylePoolSize; i++) {
602                s[i] = dtohl(mStyles[i]);
603            }
604        }
605
606        const ResStringPool_span endSpan = {
607            { htodl(ResStringPool_span::END) },
608            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
609        };
610        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
611                   &endSpan, sizeof(endSpan)) != 0) {
612            ALOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
613            return (mError=BAD_TYPE);
614        }
615    } else {
616        mEntryStyles = NULL;
617        mStyles = NULL;
618        mStylePoolSize = 0;
619    }
620
621    return (mError=NO_ERROR);
622}
623
624status_t ResStringPool::getError() const
625{
626    return mError;
627}
628
629void ResStringPool::uninit()
630{
631    mError = NO_INIT;
632    if (mHeader != NULL && mCache != NULL) {
633        for (size_t x = 0; x < mHeader->stringCount; x++) {
634            if (mCache[x] != NULL) {
635                free(mCache[x]);
636                mCache[x] = NULL;
637            }
638        }
639        free(mCache);
640        mCache = NULL;
641    }
642    if (mOwnedData) {
643        free(mOwnedData);
644        mOwnedData = NULL;
645    }
646}
647
648/**
649 * Strings in UTF-16 format have length indicated by a length encoded in the
650 * stored data. It is either 1 or 2 characters of length data. This allows a
651 * maximum length of 0x7FFFFFF (2147483647 bytes), but if you're storing that
652 * much data in a string, you're abusing them.
653 *
654 * If the high bit is set, then there are two characters or 4 bytes of length
655 * data encoded. In that case, drop the high bit of the first character and
656 * add it together with the next character.
657 */
658static inline size_t
659decodeLength(const char16_t** str)
660{
661    size_t len = **str;
662    if ((len & 0x8000) != 0) {
663        (*str)++;
664        len = ((len & 0x7FFF) << 16) | **str;
665    }
666    (*str)++;
667    return len;
668}
669
670/**
671 * Strings in UTF-8 format have length indicated by a length encoded in the
672 * stored data. It is either 1 or 2 characters of length data. This allows a
673 * maximum length of 0x7FFF (32767 bytes), but you should consider storing
674 * text in another way if you're using that much data in a single string.
675 *
676 * If the high bit is set, then there are two characters or 2 bytes of length
677 * data encoded. In that case, drop the high bit of the first character and
678 * add it together with the next character.
679 */
680static inline size_t
681decodeLength(const uint8_t** str)
682{
683    size_t len = **str;
684    if ((len & 0x80) != 0) {
685        (*str)++;
686        len = ((len & 0x7F) << 8) | **str;
687    }
688    (*str)++;
689    return len;
690}
691
692const uint16_t* ResStringPool::stringAt(size_t idx, size_t* u16len) const
693{
694    if (mError == NO_ERROR && idx < mHeader->stringCount) {
695        const bool isUTF8 = (mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0;
696        const uint32_t off = mEntries[idx]/(isUTF8?sizeof(char):sizeof(char16_t));
697        if (off < (mStringPoolSize-1)) {
698            if (!isUTF8) {
699                const char16_t* strings = (char16_t*)mStrings;
700                const char16_t* str = strings+off;
701
702                *u16len = decodeLength(&str);
703                if ((uint32_t)(str+*u16len-strings) < mStringPoolSize) {
704                    return str;
705                } else {
706                    ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
707                            (int)idx, (int)(str+*u16len-strings), (int)mStringPoolSize);
708                }
709            } else {
710                const uint8_t* strings = (uint8_t*)mStrings;
711                const uint8_t* u8str = strings+off;
712
713                *u16len = decodeLength(&u8str);
714                size_t u8len = decodeLength(&u8str);
715
716                // encLen must be less than 0x7FFF due to encoding.
717                if ((uint32_t)(u8str+u8len-strings) < mStringPoolSize) {
718                    AutoMutex lock(mDecodeLock);
719
720                    if (mCache == NULL) {
721#ifndef HAVE_ANDROID_OS
722                        STRING_POOL_NOISY(ALOGI("CREATING STRING CACHE OF %d bytes",
723                                mHeader->stringCount*sizeof(char16_t**)));
724#else
725                        // We do not want to be in this case when actually running Android.
726                        ALOGW("CREATING STRING CACHE OF %d bytes",
727                                mHeader->stringCount*sizeof(char16_t**));
728#endif
729                        mCache = (char16_t**)calloc(mHeader->stringCount, sizeof(char16_t**));
730                        if (mCache == NULL) {
731                            ALOGW("No memory trying to allocate decode cache table of %d bytes\n",
732                                    (int)(mHeader->stringCount*sizeof(char16_t**)));
733                            return NULL;
734                        }
735                    }
736
737                    if (mCache[idx] != NULL) {
738                        return mCache[idx];
739                    }
740
741                    ssize_t actualLen = utf8_to_utf16_length(u8str, u8len);
742                    if (actualLen < 0 || (size_t)actualLen != *u16len) {
743                        ALOGW("Bad string block: string #%lld decoded length is not correct "
744                                "%lld vs %llu\n",
745                                (long long)idx, (long long)actualLen, (long long)*u16len);
746                        return NULL;
747                    }
748
749                    char16_t *u16str = (char16_t *)calloc(*u16len+1, sizeof(char16_t));
750                    if (!u16str) {
751                        ALOGW("No memory when trying to allocate decode cache for string #%d\n",
752                                (int)idx);
753                        return NULL;
754                    }
755
756                    STRING_POOL_NOISY(ALOGI("Caching UTF8 string: %s", u8str));
757                    utf8_to_utf16(u8str, u8len, u16str);
758                    mCache[idx] = u16str;
759                    return u16str;
760                } else {
761                    ALOGW("Bad string block: string #%lld extends to %lld, past end at %lld\n",
762                            (long long)idx, (long long)(u8str+u8len-strings),
763                            (long long)mStringPoolSize);
764                }
765            }
766        } else {
767            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
768                    (int)idx, (int)(off*sizeof(uint16_t)),
769                    (int)(mStringPoolSize*sizeof(uint16_t)));
770        }
771    }
772    return NULL;
773}
774
775const char* ResStringPool::string8At(size_t idx, size_t* outLen) const
776{
777    if (mError == NO_ERROR && idx < mHeader->stringCount) {
778        if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) == 0) {
779            return NULL;
780        }
781        const uint32_t off = mEntries[idx]/sizeof(char);
782        if (off < (mStringPoolSize-1)) {
783            const uint8_t* strings = (uint8_t*)mStrings;
784            const uint8_t* str = strings+off;
785            *outLen = decodeLength(&str);
786            size_t encLen = decodeLength(&str);
787            if ((uint32_t)(str+encLen-strings) < mStringPoolSize) {
788                return (const char*)str;
789            } else {
790                ALOGW("Bad string block: string #%d extends to %d, past end at %d\n",
791                        (int)idx, (int)(str+encLen-strings), (int)mStringPoolSize);
792            }
793        } else {
794            ALOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
795                    (int)idx, (int)(off*sizeof(uint16_t)),
796                    (int)(mStringPoolSize*sizeof(uint16_t)));
797        }
798    }
799    return NULL;
800}
801
802const String8 ResStringPool::string8ObjectAt(size_t idx) const
803{
804    size_t len;
805    const char *str = (const char*)string8At(idx, &len);
806    if (str != NULL) {
807        return String8(str);
808    }
809    return String8(stringAt(idx, &len));
810}
811
812const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
813{
814    return styleAt(ref.index);
815}
816
817const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
818{
819    if (mError == NO_ERROR && idx < mHeader->styleCount) {
820        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
821        if (off < mStylePoolSize) {
822            return (const ResStringPool_span*)(mStyles+off);
823        } else {
824            ALOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
825                    (int)idx, (int)(off*sizeof(uint32_t)),
826                    (int)(mStylePoolSize*sizeof(uint32_t)));
827        }
828    }
829    return NULL;
830}
831
832ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
833{
834    if (mError != NO_ERROR) {
835        return mError;
836    }
837
838    size_t len;
839
840    if ((mHeader->flags&ResStringPool_header::UTF8_FLAG) != 0) {
841        STRING_POOL_NOISY(ALOGI("indexOfString UTF-8: %s", String8(str, strLen).string()));
842
843        // The string pool contains UTF 8 strings; we don't want to cause
844        // temporary UTF-16 strings to be created as we search.
845        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
846            // Do a binary search for the string...  this is a little tricky,
847            // because the strings are sorted with strzcmp16().  So to match
848            // the ordering, we need to convert strings in the pool to UTF-16.
849            // But we don't want to hit the cache, so instead we will have a
850            // local temporary allocation for the conversions.
851            char16_t* convBuffer = (char16_t*)malloc(strLen+4);
852            ssize_t l = 0;
853            ssize_t h = mHeader->stringCount-1;
854
855            ssize_t mid;
856            while (l <= h) {
857                mid = l + (h - l)/2;
858                const uint8_t* s = (const uint8_t*)string8At(mid, &len);
859                int c;
860                if (s != NULL) {
861                    char16_t* end = utf8_to_utf16_n(s, len, convBuffer, strLen+3);
862                    *end = 0;
863                    c = strzcmp16(convBuffer, end-convBuffer, str, strLen);
864                } else {
865                    c = -1;
866                }
867                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
868                             (const char*)s, c, (int)l, (int)mid, (int)h));
869                if (c == 0) {
870                    STRING_POOL_NOISY(ALOGI("MATCH!"));
871                    free(convBuffer);
872                    return mid;
873                } else if (c < 0) {
874                    l = mid + 1;
875                } else {
876                    h = mid - 1;
877                }
878            }
879            free(convBuffer);
880        } else {
881            // It is unusual to get the ID from an unsorted string block...
882            // most often this happens because we want to get IDs for style
883            // span tags; since those always appear at the end of the string
884            // block, start searching at the back.
885            String8 str8(str, strLen);
886            const size_t str8Len = str8.size();
887            for (int i=mHeader->stringCount-1; i>=0; i--) {
888                const char* s = string8At(i, &len);
889                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
890                             String8(s).string(),
891                             i));
892                if (s && str8Len == len && memcmp(s, str8.string(), str8Len) == 0) {
893                    STRING_POOL_NOISY(ALOGI("MATCH!"));
894                    return i;
895                }
896            }
897        }
898
899    } else {
900        STRING_POOL_NOISY(ALOGI("indexOfString UTF-16: %s", String8(str, strLen).string()));
901
902        if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
903            // Do a binary search for the string...
904            ssize_t l = 0;
905            ssize_t h = mHeader->stringCount-1;
906
907            ssize_t mid;
908            while (l <= h) {
909                mid = l + (h - l)/2;
910                const char16_t* s = stringAt(mid, &len);
911                int c = s ? strzcmp16(s, len, str, strLen) : -1;
912                STRING_POOL_NOISY(ALOGI("Looking at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
913                             String8(s).string(),
914                             c, (int)l, (int)mid, (int)h));
915                if (c == 0) {
916                    STRING_POOL_NOISY(ALOGI("MATCH!"));
917                    return mid;
918                } else if (c < 0) {
919                    l = mid + 1;
920                } else {
921                    h = mid - 1;
922                }
923            }
924        } else {
925            // It is unusual to get the ID from an unsorted string block...
926            // most often this happens because we want to get IDs for style
927            // span tags; since those always appear at the end of the string
928            // block, start searching at the back.
929            for (int i=mHeader->stringCount-1; i>=0; i--) {
930                const char16_t* s = stringAt(i, &len);
931                STRING_POOL_NOISY(ALOGI("Looking at %s, i=%d\n",
932                             String8(s).string(),
933                             i));
934                if (s && strLen == len && strzcmp16(s, len, str, strLen) == 0) {
935                    STRING_POOL_NOISY(ALOGI("MATCH!"));
936                    return i;
937                }
938            }
939        }
940    }
941
942    return NAME_NOT_FOUND;
943}
944
945size_t ResStringPool::size() const
946{
947    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
948}
949
950size_t ResStringPool::styleCount() const
951{
952    return (mError == NO_ERROR) ? mHeader->styleCount : 0;
953}
954
955size_t ResStringPool::bytes() const
956{
957    return (mError == NO_ERROR) ? mHeader->header.size : 0;
958}
959
960bool ResStringPool::isSorted() const
961{
962    return (mHeader->flags&ResStringPool_header::SORTED_FLAG)!=0;
963}
964
965bool ResStringPool::isUTF8() const
966{
967    return (mHeader->flags&ResStringPool_header::UTF8_FLAG)!=0;
968}
969
970// --------------------------------------------------------------------
971// --------------------------------------------------------------------
972// --------------------------------------------------------------------
973
974ResXMLParser::ResXMLParser(const ResXMLTree& tree)
975    : mTree(tree), mEventCode(BAD_DOCUMENT)
976{
977}
978
979void ResXMLParser::restart()
980{
981    mCurNode = NULL;
982    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
983}
984const ResStringPool& ResXMLParser::getStrings() const
985{
986    return mTree.mStrings;
987}
988
989ResXMLParser::event_code_t ResXMLParser::getEventType() const
990{
991    return mEventCode;
992}
993
994ResXMLParser::event_code_t ResXMLParser::next()
995{
996    if (mEventCode == START_DOCUMENT) {
997        mCurNode = mTree.mRootNode;
998        mCurExt = mTree.mRootExt;
999        return (mEventCode=mTree.mRootCode);
1000    } else if (mEventCode >= FIRST_CHUNK_CODE) {
1001        return nextNode();
1002    }
1003    return mEventCode;
1004}
1005
1006int32_t ResXMLParser::getCommentID() const
1007{
1008    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
1009}
1010
1011const uint16_t* ResXMLParser::getComment(size_t* outLen) const
1012{
1013    int32_t id = getCommentID();
1014    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1015}
1016
1017uint32_t ResXMLParser::getLineNumber() const
1018{
1019    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
1020}
1021
1022int32_t ResXMLParser::getTextID() const
1023{
1024    if (mEventCode == TEXT) {
1025        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
1026    }
1027    return -1;
1028}
1029
1030const uint16_t* ResXMLParser::getText(size_t* outLen) const
1031{
1032    int32_t id = getTextID();
1033    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1034}
1035
1036ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
1037{
1038    if (mEventCode == TEXT) {
1039        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
1040        return sizeof(Res_value);
1041    }
1042    return BAD_TYPE;
1043}
1044
1045int32_t ResXMLParser::getNamespacePrefixID() const
1046{
1047    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1048        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
1049    }
1050    return -1;
1051}
1052
1053const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
1054{
1055    int32_t id = getNamespacePrefixID();
1056    //printf("prefix=%d  event=%p\n", id, mEventCode);
1057    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1058}
1059
1060int32_t ResXMLParser::getNamespaceUriID() const
1061{
1062    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
1063        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
1064    }
1065    return -1;
1066}
1067
1068const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
1069{
1070    int32_t id = getNamespaceUriID();
1071    //printf("uri=%d  event=%p\n", id, mEventCode);
1072    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1073}
1074
1075int32_t ResXMLParser::getElementNamespaceID() const
1076{
1077    if (mEventCode == START_TAG) {
1078        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
1079    }
1080    if (mEventCode == END_TAG) {
1081        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
1082    }
1083    return -1;
1084}
1085
1086const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
1087{
1088    int32_t id = getElementNamespaceID();
1089    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1090}
1091
1092int32_t ResXMLParser::getElementNameID() const
1093{
1094    if (mEventCode == START_TAG) {
1095        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
1096    }
1097    if (mEventCode == END_TAG) {
1098        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
1099    }
1100    return -1;
1101}
1102
1103const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
1104{
1105    int32_t id = getElementNameID();
1106    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1107}
1108
1109size_t ResXMLParser::getAttributeCount() const
1110{
1111    if (mEventCode == START_TAG) {
1112        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
1113    }
1114    return 0;
1115}
1116
1117int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
1118{
1119    if (mEventCode == START_TAG) {
1120        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1121        if (idx < dtohs(tag->attributeCount)) {
1122            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1123                (((const uint8_t*)tag)
1124                 + dtohs(tag->attributeStart)
1125                 + (dtohs(tag->attributeSize)*idx));
1126            return dtohl(attr->ns.index);
1127        }
1128    }
1129    return -2;
1130}
1131
1132const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
1133{
1134    int32_t id = getAttributeNamespaceID(idx);
1135    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1136    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1137    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1138}
1139
1140const char* ResXMLParser::getAttributeNamespace8(size_t idx, size_t* outLen) const
1141{
1142    int32_t id = getAttributeNamespaceID(idx);
1143    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1144    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
1145    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1146}
1147
1148int32_t ResXMLParser::getAttributeNameID(size_t idx) const
1149{
1150    if (mEventCode == START_TAG) {
1151        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1152        if (idx < dtohs(tag->attributeCount)) {
1153            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1154                (((const uint8_t*)tag)
1155                 + dtohs(tag->attributeStart)
1156                 + (dtohs(tag->attributeSize)*idx));
1157            return dtohl(attr->name.index);
1158        }
1159    }
1160    return -1;
1161}
1162
1163const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
1164{
1165    int32_t id = getAttributeNameID(idx);
1166    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1167    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1168    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1169}
1170
1171const char* ResXMLParser::getAttributeName8(size_t idx, size_t* outLen) const
1172{
1173    int32_t id = getAttributeNameID(idx);
1174    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
1175    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
1176    return id >= 0 ? mTree.mStrings.string8At(id, outLen) : NULL;
1177}
1178
1179uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
1180{
1181    int32_t id = getAttributeNameID(idx);
1182    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
1183        return dtohl(mTree.mResIds[id]);
1184    }
1185    return 0;
1186}
1187
1188int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
1189{
1190    if (mEventCode == START_TAG) {
1191        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1192        if (idx < dtohs(tag->attributeCount)) {
1193            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1194                (((const uint8_t*)tag)
1195                 + dtohs(tag->attributeStart)
1196                 + (dtohs(tag->attributeSize)*idx));
1197            return dtohl(attr->rawValue.index);
1198        }
1199    }
1200    return -1;
1201}
1202
1203const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
1204{
1205    int32_t id = getAttributeValueStringID(idx);
1206    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
1207    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
1208}
1209
1210int32_t ResXMLParser::getAttributeDataType(size_t idx) const
1211{
1212    if (mEventCode == START_TAG) {
1213        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1214        if (idx < dtohs(tag->attributeCount)) {
1215            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1216                (((const uint8_t*)tag)
1217                 + dtohs(tag->attributeStart)
1218                 + (dtohs(tag->attributeSize)*idx));
1219            uint8_t type = attr->typedValue.dataType;
1220            if (type != Res_value::TYPE_DYNAMIC_REFERENCE) {
1221                return type;
1222            }
1223
1224            // This is a dynamic reference. We adjust those references
1225            // to regular references at this level, so lie to the caller.
1226            return Res_value::TYPE_REFERENCE;
1227        }
1228    }
1229    return Res_value::TYPE_NULL;
1230}
1231
1232int32_t ResXMLParser::getAttributeData(size_t idx) const
1233{
1234    if (mEventCode == START_TAG) {
1235        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1236        if (idx < dtohs(tag->attributeCount)) {
1237            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1238                (((const uint8_t*)tag)
1239                 + dtohs(tag->attributeStart)
1240                 + (dtohs(tag->attributeSize)*idx));
1241            if (attr->typedValue.dataType != Res_value::TYPE_DYNAMIC_REFERENCE ||
1242                    mTree.mDynamicRefTable == NULL) {
1243                return dtohl(attr->typedValue.data);
1244            }
1245
1246            uint32_t data = dtohl(attr->typedValue.data);
1247            if (mTree.mDynamicRefTable->lookupResourceId(&data) == NO_ERROR) {
1248                return data;
1249            }
1250        }
1251    }
1252    return 0;
1253}
1254
1255ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
1256{
1257    if (mEventCode == START_TAG) {
1258        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
1259        if (idx < dtohs(tag->attributeCount)) {
1260            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
1261                (((const uint8_t*)tag)
1262                 + dtohs(tag->attributeStart)
1263                 + (dtohs(tag->attributeSize)*idx));
1264            outValue->copyFrom_dtoh(attr->typedValue);
1265            if (mTree.mDynamicRefTable != NULL &&
1266                    mTree.mDynamicRefTable->lookupResourceValue(outValue) != NO_ERROR) {
1267                return BAD_TYPE;
1268            }
1269            return sizeof(Res_value);
1270        }
1271    }
1272    return BAD_TYPE;
1273}
1274
1275ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
1276{
1277    String16 nsStr(ns != NULL ? ns : "");
1278    String16 attrStr(attr);
1279    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
1280                            attrStr.string(), attrStr.size());
1281}
1282
1283ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
1284                                       const char16_t* attr, size_t attrLen) const
1285{
1286    if (mEventCode == START_TAG) {
1287        if (attr == NULL) {
1288            return NAME_NOT_FOUND;
1289        }
1290        const size_t N = getAttributeCount();
1291        if (mTree.mStrings.isUTF8()) {
1292            String8 ns8, attr8;
1293            if (ns != NULL) {
1294                ns8 = String8(ns, nsLen);
1295            }
1296            attr8 = String8(attr, attrLen);
1297            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF8 %s (%d) / %s (%d)", ns8.string(), nsLen,
1298                    attr8.string(), attrLen));
1299            for (size_t i=0; i<N; i++) {
1300                size_t curNsLen = 0, curAttrLen = 0;
1301                const char* curNs = getAttributeNamespace8(i, &curNsLen);
1302                const char* curAttr = getAttributeName8(i, &curAttrLen);
1303                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)", curNs, curNsLen,
1304                        curAttr, curAttrLen));
1305                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1306                        && memcmp(attr8.string(), curAttr, attrLen) == 0) {
1307                    if (ns == NULL) {
1308                        if (curNs == NULL) {
1309                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1310                            return i;
1311                        }
1312                    } else if (curNs != NULL) {
1313                        //printf(" --> ns=%s, curNs=%s\n",
1314                        //       String8(ns).string(), String8(curNs).string());
1315                        if (memcmp(ns8.string(), curNs, nsLen) == 0) {
1316                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1317                            return i;
1318                        }
1319                    }
1320                }
1321            }
1322        } else {
1323            STRING_POOL_NOISY(ALOGI("indexOfAttribute UTF16 %s (%d) / %s (%d)",
1324                    String8(ns, nsLen).string(), nsLen,
1325                    String8(attr, attrLen).string(), attrLen));
1326            for (size_t i=0; i<N; i++) {
1327                size_t curNsLen = 0, curAttrLen = 0;
1328                const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
1329                const char16_t* curAttr = getAttributeName(i, &curAttrLen);
1330                STRING_POOL_NOISY(ALOGI("  curNs=%s (%d), curAttr=%s (%d)",
1331                        String8(curNs, curNsLen).string(), curNsLen,
1332                        String8(curAttr, curAttrLen).string(), curAttrLen));
1333                if (curAttr != NULL && curNsLen == nsLen && curAttrLen == attrLen
1334                        && (memcmp(attr, curAttr, attrLen*sizeof(char16_t)) == 0)) {
1335                    if (ns == NULL) {
1336                        if (curNs == NULL) {
1337                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1338                            return i;
1339                        }
1340                    } else if (curNs != NULL) {
1341                        //printf(" --> ns=%s, curNs=%s\n",
1342                        //       String8(ns).string(), String8(curNs).string());
1343                        if (memcmp(ns, curNs, nsLen*sizeof(char16_t)) == 0) {
1344                            STRING_POOL_NOISY(ALOGI("  FOUND!"));
1345                            return i;
1346                        }
1347                    }
1348                }
1349            }
1350        }
1351    }
1352
1353    return NAME_NOT_FOUND;
1354}
1355
1356ssize_t ResXMLParser::indexOfID() const
1357{
1358    if (mEventCode == START_TAG) {
1359        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
1360        if (idx > 0) return (idx-1);
1361    }
1362    return NAME_NOT_FOUND;
1363}
1364
1365ssize_t ResXMLParser::indexOfClass() const
1366{
1367    if (mEventCode == START_TAG) {
1368        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
1369        if (idx > 0) return (idx-1);
1370    }
1371    return NAME_NOT_FOUND;
1372}
1373
1374ssize_t ResXMLParser::indexOfStyle() const
1375{
1376    if (mEventCode == START_TAG) {
1377        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
1378        if (idx > 0) return (idx-1);
1379    }
1380    return NAME_NOT_FOUND;
1381}
1382
1383ResXMLParser::event_code_t ResXMLParser::nextNode()
1384{
1385    if (mEventCode < 0) {
1386        return mEventCode;
1387    }
1388
1389    do {
1390        const ResXMLTree_node* next = (const ResXMLTree_node*)
1391            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
1392        //ALOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
1393
1394        if (((const uint8_t*)next) >= mTree.mDataEnd) {
1395            mCurNode = NULL;
1396            return (mEventCode=END_DOCUMENT);
1397        }
1398
1399        if (mTree.validateNode(next) != NO_ERROR) {
1400            mCurNode = NULL;
1401            return (mEventCode=BAD_DOCUMENT);
1402        }
1403
1404        mCurNode = next;
1405        const uint16_t headerSize = dtohs(next->header.headerSize);
1406        const uint32_t totalSize = dtohl(next->header.size);
1407        mCurExt = ((const uint8_t*)next) + headerSize;
1408        size_t minExtSize = 0;
1409        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
1410        switch ((mEventCode=eventCode)) {
1411            case RES_XML_START_NAMESPACE_TYPE:
1412            case RES_XML_END_NAMESPACE_TYPE:
1413                minExtSize = sizeof(ResXMLTree_namespaceExt);
1414                break;
1415            case RES_XML_START_ELEMENT_TYPE:
1416                minExtSize = sizeof(ResXMLTree_attrExt);
1417                break;
1418            case RES_XML_END_ELEMENT_TYPE:
1419                minExtSize = sizeof(ResXMLTree_endElementExt);
1420                break;
1421            case RES_XML_CDATA_TYPE:
1422                minExtSize = sizeof(ResXMLTree_cdataExt);
1423                break;
1424            default:
1425                ALOGW("Unknown XML block: header type %d in node at %d\n",
1426                     (int)dtohs(next->header.type),
1427                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
1428                continue;
1429        }
1430
1431        if ((totalSize-headerSize) < minExtSize) {
1432            ALOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
1433                 (int)dtohs(next->header.type),
1434                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
1435                 (int)(totalSize-headerSize), (int)minExtSize);
1436            return (mEventCode=BAD_DOCUMENT);
1437        }
1438
1439        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
1440        //       mCurNode, mCurExt, headerSize, minExtSize);
1441
1442        return eventCode;
1443    } while (true);
1444}
1445
1446void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
1447{
1448    pos->eventCode = mEventCode;
1449    pos->curNode = mCurNode;
1450    pos->curExt = mCurExt;
1451}
1452
1453void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
1454{
1455    mEventCode = pos.eventCode;
1456    mCurNode = pos.curNode;
1457    mCurExt = pos.curExt;
1458}
1459
1460// --------------------------------------------------------------------
1461
1462static volatile int32_t gCount = 0;
1463
1464ResXMLTree::ResXMLTree(const DynamicRefTable* dynamicRefTable)
1465    : ResXMLParser(*this)
1466    , mDynamicRefTable(dynamicRefTable)
1467    , mError(NO_INIT), mOwnedData(NULL)
1468{
1469    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1470    restart();
1471}
1472
1473ResXMLTree::ResXMLTree()
1474    : ResXMLParser(*this)
1475    , mDynamicRefTable(NULL)
1476    , mError(NO_INIT), mOwnedData(NULL)
1477{
1478    //ALOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
1479    restart();
1480}
1481
1482ResXMLTree::~ResXMLTree()
1483{
1484    //ALOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
1485    uninit();
1486}
1487
1488status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
1489{
1490    uninit();
1491    mEventCode = START_DOCUMENT;
1492
1493    if (!data || !size) {
1494        return (mError=BAD_TYPE);
1495    }
1496
1497    if (copyData) {
1498        mOwnedData = malloc(size);
1499        if (mOwnedData == NULL) {
1500            return (mError=NO_MEMORY);
1501        }
1502        memcpy(mOwnedData, data, size);
1503        data = mOwnedData;
1504    }
1505
1506    mHeader = (const ResXMLTree_header*)data;
1507    mSize = dtohl(mHeader->header.size);
1508    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
1509        ALOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
1510             (int)dtohs(mHeader->header.headerSize),
1511             (int)dtohl(mHeader->header.size), (int)size);
1512        mError = BAD_TYPE;
1513        restart();
1514        return mError;
1515    }
1516    mDataEnd = ((const uint8_t*)mHeader) + mSize;
1517
1518    mStrings.uninit();
1519    mRootNode = NULL;
1520    mResIds = NULL;
1521    mNumResIds = 0;
1522
1523    // First look for a couple interesting chunks: the string block
1524    // and first XML node.
1525    const ResChunk_header* chunk =
1526        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
1527    const ResChunk_header* lastChunk = chunk;
1528    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
1529           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
1530        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
1531        if (err != NO_ERROR) {
1532            mError = err;
1533            goto done;
1534        }
1535        const uint16_t type = dtohs(chunk->type);
1536        const size_t size = dtohl(chunk->size);
1537        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
1538                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
1539        if (type == RES_STRING_POOL_TYPE) {
1540            mStrings.setTo(chunk, size);
1541        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
1542            mResIds = (const uint32_t*)
1543                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1544            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1545        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1546                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1547            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1548                mError = BAD_TYPE;
1549                goto done;
1550            }
1551            mCurNode = (const ResXMLTree_node*)lastChunk;
1552            if (nextNode() == BAD_DOCUMENT) {
1553                mError = BAD_TYPE;
1554                goto done;
1555            }
1556            mRootNode = mCurNode;
1557            mRootExt = mCurExt;
1558            mRootCode = mEventCode;
1559            break;
1560        } else {
1561            XML_NOISY(printf("Skipping unknown chunk!\n"));
1562        }
1563        lastChunk = chunk;
1564        chunk = (const ResChunk_header*)
1565            (((const uint8_t*)chunk) + size);
1566    }
1567
1568    if (mRootNode == NULL) {
1569        ALOGW("Bad XML block: no root element node found\n");
1570        mError = BAD_TYPE;
1571        goto done;
1572    }
1573
1574    mError = mStrings.getError();
1575
1576done:
1577    restart();
1578    return mError;
1579}
1580
1581status_t ResXMLTree::getError() const
1582{
1583    return mError;
1584}
1585
1586void ResXMLTree::uninit()
1587{
1588    mError = NO_INIT;
1589    mStrings.uninit();
1590    if (mOwnedData) {
1591        free(mOwnedData);
1592        mOwnedData = NULL;
1593    }
1594    restart();
1595}
1596
1597status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1598{
1599    const uint16_t eventCode = dtohs(node->header.type);
1600
1601    status_t err = validate_chunk(
1602        &node->header, sizeof(ResXMLTree_node),
1603        mDataEnd, "ResXMLTree_node");
1604
1605    if (err >= NO_ERROR) {
1606        // Only perform additional validation on START nodes
1607        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1608            return NO_ERROR;
1609        }
1610
1611        const uint16_t headerSize = dtohs(node->header.headerSize);
1612        const uint32_t size = dtohl(node->header.size);
1613        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1614            (((const uint8_t*)node) + headerSize);
1615        // check for sensical values pulled out of the stream so far...
1616        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1617                && ((void*)attrExt > (void*)node)) {
1618            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1619                * dtohs(attrExt->attributeCount);
1620            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1621                return NO_ERROR;
1622            }
1623            ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1624                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1625                    (unsigned int)(size-headerSize));
1626        }
1627        else {
1628            ALOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1629                (unsigned int)headerSize, (unsigned int)size);
1630        }
1631        return BAD_TYPE;
1632    }
1633
1634    return err;
1635
1636#if 0
1637    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1638
1639    const uint16_t headerSize = dtohs(node->header.headerSize);
1640    const uint32_t size = dtohl(node->header.size);
1641
1642    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1643        if (size >= headerSize) {
1644            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1645                if (!isStart) {
1646                    return NO_ERROR;
1647                }
1648                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1649                        <= (size-headerSize)) {
1650                    return NO_ERROR;
1651                }
1652                ALOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1653                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1654                        (int)(size-headerSize));
1655                return BAD_TYPE;
1656            }
1657            ALOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1658                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1659            return BAD_TYPE;
1660        }
1661        ALOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1662                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1663                (int)headerSize, (int)size);
1664        return BAD_TYPE;
1665    }
1666    ALOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1667            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1668            (int)headerSize);
1669    return BAD_TYPE;
1670#endif
1671}
1672
1673// --------------------------------------------------------------------
1674// --------------------------------------------------------------------
1675// --------------------------------------------------------------------
1676
1677void ResTable_config::copyFromDeviceNoSwap(const ResTable_config& o) {
1678    const size_t size = dtohl(o.size);
1679    if (size >= sizeof(ResTable_config)) {
1680        *this = o;
1681    } else {
1682        memcpy(this, &o, size);
1683        memset(((uint8_t*)this)+size, 0, sizeof(ResTable_config)-size);
1684    }
1685}
1686
1687/* static */ size_t unpackLanguageOrRegion(const char in[2], const char base,
1688        char out[4]) {
1689  if (in[0] & 0x80) {
1690      // The high bit is "1", which means this is a packed three letter
1691      // language code.
1692
1693      // The smallest 5 bits of the second char are the first alphabet.
1694      const uint8_t first = in[1] & 0x1f;
1695      // The last three bits of the second char and the first two bits
1696      // of the first char are the second alphabet.
1697      const uint8_t second = ((in[1] & 0xe0) >> 5) + ((in[0] & 0x03) << 3);
1698      // Bits 3 to 7 (inclusive) of the first char are the third alphabet.
1699      const uint8_t third = (in[0] & 0x7c) >> 2;
1700
1701      out[0] = first + base;
1702      out[1] = second + base;
1703      out[2] = third + base;
1704      out[3] = 0;
1705
1706      return 3;
1707  }
1708
1709  if (in[0]) {
1710      memcpy(out, in, 2);
1711      memset(out + 2, 0, 2);
1712      return 2;
1713  }
1714
1715  memset(out, 0, 4);
1716  return 0;
1717}
1718
1719/* static */ void packLanguageOrRegion(const char* in, const char base,
1720        char out[2]) {
1721  if (in[2] == 0 || in[2] == '-') {
1722      out[0] = in[0];
1723      out[1] = in[1];
1724  } else {
1725      uint8_t first = (in[0] - base) & 0x007f;
1726      uint8_t second = (in[1] - base) & 0x007f;
1727      uint8_t third = (in[2] - base) & 0x007f;
1728
1729      out[0] = (0x80 | (third << 2) | (second >> 3));
1730      out[1] = ((second << 5) | first);
1731  }
1732}
1733
1734
1735void ResTable_config::packLanguage(const char* language) {
1736    packLanguageOrRegion(language, 'a', this->language);
1737}
1738
1739void ResTable_config::packRegion(const char* region) {
1740    packLanguageOrRegion(region, '0', this->country);
1741}
1742
1743size_t ResTable_config::unpackLanguage(char language[4]) const {
1744    return unpackLanguageOrRegion(this->language, 'a', language);
1745}
1746
1747size_t ResTable_config::unpackRegion(char region[4]) const {
1748    return unpackLanguageOrRegion(this->country, '0', region);
1749}
1750
1751
1752void ResTable_config::copyFromDtoH(const ResTable_config& o) {
1753    copyFromDeviceNoSwap(o);
1754    size = sizeof(ResTable_config);
1755    mcc = dtohs(mcc);
1756    mnc = dtohs(mnc);
1757    density = dtohs(density);
1758    screenWidth = dtohs(screenWidth);
1759    screenHeight = dtohs(screenHeight);
1760    sdkVersion = dtohs(sdkVersion);
1761    minorVersion = dtohs(minorVersion);
1762    smallestScreenWidthDp = dtohs(smallestScreenWidthDp);
1763    screenWidthDp = dtohs(screenWidthDp);
1764    screenHeightDp = dtohs(screenHeightDp);
1765}
1766
1767void ResTable_config::swapHtoD() {
1768    size = htodl(size);
1769    mcc = htods(mcc);
1770    mnc = htods(mnc);
1771    density = htods(density);
1772    screenWidth = htods(screenWidth);
1773    screenHeight = htods(screenHeight);
1774    sdkVersion = htods(sdkVersion);
1775    minorVersion = htods(minorVersion);
1776    smallestScreenWidthDp = htods(smallestScreenWidthDp);
1777    screenWidthDp = htods(screenWidthDp);
1778    screenHeightDp = htods(screenHeightDp);
1779}
1780
1781/* static */ inline int compareLocales(const ResTable_config &l, const ResTable_config &r) {
1782    if (l.locale != r.locale) {
1783        // NOTE: This is the old behaviour with respect to comparison orders.
1784        // The diff value here doesn't make much sense (given our bit packing scheme)
1785        // but it's stable, and that's all we need.
1786        return l.locale - r.locale;
1787    }
1788
1789    // The language & region are equal, so compare the scripts and variants.
1790    int script = memcmp(l.localeScript, r.localeScript, sizeof(l.localeScript));
1791    if (script) {
1792        return script;
1793    }
1794
1795    // The language, region and script are equal, so compare variants.
1796    //
1797    // This should happen very infrequently (if at all.)
1798    return memcmp(l.localeVariant, r.localeVariant, sizeof(l.localeVariant));
1799}
1800
1801int ResTable_config::compare(const ResTable_config& o) const {
1802    int32_t diff = (int32_t)(imsi - o.imsi);
1803    if (diff != 0) return diff;
1804    diff = compareLocales(*this, o);
1805    if (diff != 0) return diff;
1806    diff = (int32_t)(screenType - o.screenType);
1807    if (diff != 0) return diff;
1808    diff = (int32_t)(input - o.input);
1809    if (diff != 0) return diff;
1810    diff = (int32_t)(screenSize - o.screenSize);
1811    if (diff != 0) return diff;
1812    diff = (int32_t)(version - o.version);
1813    if (diff != 0) return diff;
1814    diff = (int32_t)(screenLayout - o.screenLayout);
1815    if (diff != 0) return diff;
1816    diff = (int32_t)(uiMode - o.uiMode);
1817    if (diff != 0) return diff;
1818    diff = (int32_t)(smallestScreenWidthDp - o.smallestScreenWidthDp);
1819    if (diff != 0) return diff;
1820    diff = (int32_t)(screenSizeDp - o.screenSizeDp);
1821    return (int)diff;
1822}
1823
1824int ResTable_config::compareLogical(const ResTable_config& o) const {
1825    if (mcc != o.mcc) {
1826        return mcc < o.mcc ? -1 : 1;
1827    }
1828    if (mnc != o.mnc) {
1829        return mnc < o.mnc ? -1 : 1;
1830    }
1831
1832    int diff = compareLocales(*this, o);
1833    if (diff < 0) {
1834        return -1;
1835    }
1836    if (diff > 0) {
1837        return 1;
1838    }
1839
1840    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) {
1841        return (screenLayout & MASK_LAYOUTDIR) < (o.screenLayout & MASK_LAYOUTDIR) ? -1 : 1;
1842    }
1843    if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1844        return smallestScreenWidthDp < o.smallestScreenWidthDp ? -1 : 1;
1845    }
1846    if (screenWidthDp != o.screenWidthDp) {
1847        return screenWidthDp < o.screenWidthDp ? -1 : 1;
1848    }
1849    if (screenHeightDp != o.screenHeightDp) {
1850        return screenHeightDp < o.screenHeightDp ? -1 : 1;
1851    }
1852    if (screenWidth != o.screenWidth) {
1853        return screenWidth < o.screenWidth ? -1 : 1;
1854    }
1855    if (screenHeight != o.screenHeight) {
1856        return screenHeight < o.screenHeight ? -1 : 1;
1857    }
1858    if (density != o.density) {
1859        return density < o.density ? -1 : 1;
1860    }
1861    if (orientation != o.orientation) {
1862        return orientation < o.orientation ? -1 : 1;
1863    }
1864    if (touchscreen != o.touchscreen) {
1865        return touchscreen < o.touchscreen ? -1 : 1;
1866    }
1867    if (input != o.input) {
1868        return input < o.input ? -1 : 1;
1869    }
1870    if (screenLayout != o.screenLayout) {
1871        return screenLayout < o.screenLayout ? -1 : 1;
1872    }
1873    if (uiMode != o.uiMode) {
1874        return uiMode < o.uiMode ? -1 : 1;
1875    }
1876    if (version != o.version) {
1877        return version < o.version ? -1 : 1;
1878    }
1879    return 0;
1880}
1881
1882int ResTable_config::diff(const ResTable_config& o) const {
1883    int diffs = 0;
1884    if (mcc != o.mcc) diffs |= CONFIG_MCC;
1885    if (mnc != o.mnc) diffs |= CONFIG_MNC;
1886    if (orientation != o.orientation) diffs |= CONFIG_ORIENTATION;
1887    if (density != o.density) diffs |= CONFIG_DENSITY;
1888    if (touchscreen != o.touchscreen) diffs |= CONFIG_TOUCHSCREEN;
1889    if (((inputFlags^o.inputFlags)&(MASK_KEYSHIDDEN|MASK_NAVHIDDEN)) != 0)
1890            diffs |= CONFIG_KEYBOARD_HIDDEN;
1891    if (keyboard != o.keyboard) diffs |= CONFIG_KEYBOARD;
1892    if (navigation != o.navigation) diffs |= CONFIG_NAVIGATION;
1893    if (screenSize != o.screenSize) diffs |= CONFIG_SCREEN_SIZE;
1894    if (version != o.version) diffs |= CONFIG_VERSION;
1895    if ((screenLayout & MASK_LAYOUTDIR) != (o.screenLayout & MASK_LAYOUTDIR)) diffs |= CONFIG_LAYOUTDIR;
1896    if ((screenLayout & ~MASK_LAYOUTDIR) != (o.screenLayout & ~MASK_LAYOUTDIR)) diffs |= CONFIG_SCREEN_LAYOUT;
1897    if (uiMode != o.uiMode) diffs |= CONFIG_UI_MODE;
1898    if (smallestScreenWidthDp != o.smallestScreenWidthDp) diffs |= CONFIG_SMALLEST_SCREEN_SIZE;
1899    if (screenSizeDp != o.screenSizeDp) diffs |= CONFIG_SCREEN_SIZE;
1900
1901    const int diff = compareLocales(*this, o);
1902    if (diff) diffs |= CONFIG_LOCALE;
1903
1904    return diffs;
1905}
1906
1907int ResTable_config::isLocaleMoreSpecificThan(const ResTable_config& o) const {
1908    if (locale || o.locale) {
1909        if (language[0] != o.language[0]) {
1910            if (!language[0]) return -1;
1911            if (!o.language[0]) return 1;
1912        }
1913
1914        if (country[0] != o.country[0]) {
1915            if (!country[0]) return -1;
1916            if (!o.country[0]) return 1;
1917        }
1918    }
1919
1920    // There isn't a well specified "importance" order between variants and
1921    // scripts. We can't easily tell whether, say "en-Latn-US" is more or less
1922    // specific than "en-US-POSIX".
1923    //
1924    // We therefore arbitrarily decide to give priority to variants over
1925    // scripts since it seems more useful to do so. We will consider
1926    // "en-US-POSIX" to be more specific than "en-Latn-US".
1927
1928    const int score = ((localeScript[0] != 0) ? 1 : 0) +
1929        ((localeVariant[0] != 0) ? 2 : 0);
1930
1931    const int oScore = ((o.localeScript[0] != 0) ? 1 : 0) +
1932        ((o.localeVariant[0] != 0) ? 2 : 0);
1933
1934    return score - oScore;
1935
1936}
1937
1938bool ResTable_config::isMoreSpecificThan(const ResTable_config& o) const {
1939    // The order of the following tests defines the importance of one
1940    // configuration parameter over another.  Those tests first are more
1941    // important, trumping any values in those following them.
1942    if (imsi || o.imsi) {
1943        if (mcc != o.mcc) {
1944            if (!mcc) return false;
1945            if (!o.mcc) return true;
1946        }
1947
1948        if (mnc != o.mnc) {
1949            if (!mnc) return false;
1950            if (!o.mnc) return true;
1951        }
1952    }
1953
1954    if (locale || o.locale) {
1955        const int diff = isLocaleMoreSpecificThan(o);
1956        if (diff < 0) {
1957            return false;
1958        }
1959
1960        if (diff > 0) {
1961            return true;
1962        }
1963    }
1964
1965    if (screenLayout || o.screenLayout) {
1966        if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0) {
1967            if (!(screenLayout & MASK_LAYOUTDIR)) return false;
1968            if (!(o.screenLayout & MASK_LAYOUTDIR)) return true;
1969        }
1970    }
1971
1972    if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
1973        if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
1974            if (!smallestScreenWidthDp) return false;
1975            if (!o.smallestScreenWidthDp) return true;
1976        }
1977    }
1978
1979    if (screenSizeDp || o.screenSizeDp) {
1980        if (screenWidthDp != o.screenWidthDp) {
1981            if (!screenWidthDp) return false;
1982            if (!o.screenWidthDp) return true;
1983        }
1984
1985        if (screenHeightDp != o.screenHeightDp) {
1986            if (!screenHeightDp) return false;
1987            if (!o.screenHeightDp) return true;
1988        }
1989    }
1990
1991    if (screenLayout || o.screenLayout) {
1992        if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0) {
1993            if (!(screenLayout & MASK_SCREENSIZE)) return false;
1994            if (!(o.screenLayout & MASK_SCREENSIZE)) return true;
1995        }
1996        if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0) {
1997            if (!(screenLayout & MASK_SCREENLONG)) return false;
1998            if (!(o.screenLayout & MASK_SCREENLONG)) return true;
1999        }
2000    }
2001
2002    if (orientation != o.orientation) {
2003        if (!orientation) return false;
2004        if (!o.orientation) return true;
2005    }
2006
2007    if (uiMode || o.uiMode) {
2008        if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0) {
2009            if (!(uiMode & MASK_UI_MODE_TYPE)) return false;
2010            if (!(o.uiMode & MASK_UI_MODE_TYPE)) return true;
2011        }
2012        if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0) {
2013            if (!(uiMode & MASK_UI_MODE_NIGHT)) return false;
2014            if (!(o.uiMode & MASK_UI_MODE_NIGHT)) return true;
2015        }
2016    }
2017
2018    // density is never 'more specific'
2019    // as the default just equals 160
2020
2021    if (touchscreen != o.touchscreen) {
2022        if (!touchscreen) return false;
2023        if (!o.touchscreen) return true;
2024    }
2025
2026    if (input || o.input) {
2027        if (((inputFlags^o.inputFlags) & MASK_KEYSHIDDEN) != 0) {
2028            if (!(inputFlags & MASK_KEYSHIDDEN)) return false;
2029            if (!(o.inputFlags & MASK_KEYSHIDDEN)) return true;
2030        }
2031
2032        if (((inputFlags^o.inputFlags) & MASK_NAVHIDDEN) != 0) {
2033            if (!(inputFlags & MASK_NAVHIDDEN)) return false;
2034            if (!(o.inputFlags & MASK_NAVHIDDEN)) return true;
2035        }
2036
2037        if (keyboard != o.keyboard) {
2038            if (!keyboard) return false;
2039            if (!o.keyboard) return true;
2040        }
2041
2042        if (navigation != o.navigation) {
2043            if (!navigation) return false;
2044            if (!o.navigation) return true;
2045        }
2046    }
2047
2048    if (screenSize || o.screenSize) {
2049        if (screenWidth != o.screenWidth) {
2050            if (!screenWidth) return false;
2051            if (!o.screenWidth) return true;
2052        }
2053
2054        if (screenHeight != o.screenHeight) {
2055            if (!screenHeight) return false;
2056            if (!o.screenHeight) return true;
2057        }
2058    }
2059
2060    if (version || o.version) {
2061        if (sdkVersion != o.sdkVersion) {
2062            if (!sdkVersion) return false;
2063            if (!o.sdkVersion) return true;
2064        }
2065
2066        if (minorVersion != o.minorVersion) {
2067            if (!minorVersion) return false;
2068            if (!o.minorVersion) return true;
2069        }
2070    }
2071    return false;
2072}
2073
2074bool ResTable_config::isBetterThan(const ResTable_config& o,
2075        const ResTable_config* requested) const {
2076    if (requested) {
2077        if (imsi || o.imsi) {
2078            if ((mcc != o.mcc) && requested->mcc) {
2079                return (mcc);
2080            }
2081
2082            if ((mnc != o.mnc) && requested->mnc) {
2083                return (mnc);
2084            }
2085        }
2086
2087        if (locale || o.locale) {
2088            if ((language[0] != o.language[0]) && requested->language[0]) {
2089                return (language[0]);
2090            }
2091
2092            if ((country[0] != o.country[0]) && requested->country[0]) {
2093                return (country[0]);
2094            }
2095        }
2096
2097        if (localeScript[0] || o.localeScript[0]) {
2098            if (localeScript[0] != o.localeScript[0] && requested->localeScript[0]) {
2099                return localeScript[0];
2100            }
2101        }
2102
2103        if (localeVariant[0] || o.localeVariant[0]) {
2104            if (localeVariant[0] != o.localeVariant[0] && requested->localeVariant[0]) {
2105                return localeVariant[0];
2106            }
2107        }
2108
2109        if (screenLayout || o.screenLayout) {
2110            if (((screenLayout^o.screenLayout) & MASK_LAYOUTDIR) != 0
2111                    && (requested->screenLayout & MASK_LAYOUTDIR)) {
2112                int myLayoutDir = screenLayout & MASK_LAYOUTDIR;
2113                int oLayoutDir = o.screenLayout & MASK_LAYOUTDIR;
2114                return (myLayoutDir > oLayoutDir);
2115            }
2116        }
2117
2118        if (smallestScreenWidthDp || o.smallestScreenWidthDp) {
2119            // The configuration closest to the actual size is best.
2120            // We assume that larger configs have already been filtered
2121            // out at this point.  That means we just want the largest one.
2122            if (smallestScreenWidthDp != o.smallestScreenWidthDp) {
2123                return smallestScreenWidthDp > o.smallestScreenWidthDp;
2124            }
2125        }
2126
2127        if (screenSizeDp || o.screenSizeDp) {
2128            // "Better" is based on the sum of the difference between both
2129            // width and height from the requested dimensions.  We are
2130            // assuming the invalid configs (with smaller dimens) have
2131            // already been filtered.  Note that if a particular dimension
2132            // is unspecified, we will end up with a large value (the
2133            // difference between 0 and the requested dimension), which is
2134            // good since we will prefer a config that has specified a
2135            // dimension value.
2136            int myDelta = 0, otherDelta = 0;
2137            if (requested->screenWidthDp) {
2138                myDelta += requested->screenWidthDp - screenWidthDp;
2139                otherDelta += requested->screenWidthDp - o.screenWidthDp;
2140            }
2141            if (requested->screenHeightDp) {
2142                myDelta += requested->screenHeightDp - screenHeightDp;
2143                otherDelta += requested->screenHeightDp - o.screenHeightDp;
2144            }
2145            //ALOGI("Comparing this %dx%d to other %dx%d in %dx%d: myDelta=%d otherDelta=%d",
2146            //    screenWidthDp, screenHeightDp, o.screenWidthDp, o.screenHeightDp,
2147            //    requested->screenWidthDp, requested->screenHeightDp, myDelta, otherDelta);
2148            if (myDelta != otherDelta) {
2149                return myDelta < otherDelta;
2150            }
2151        }
2152
2153        if (screenLayout || o.screenLayout) {
2154            if (((screenLayout^o.screenLayout) & MASK_SCREENSIZE) != 0
2155                    && (requested->screenLayout & MASK_SCREENSIZE)) {
2156                // A little backwards compatibility here: undefined is
2157                // considered equivalent to normal.  But only if the
2158                // requested size is at least normal; otherwise, small
2159                // is better than the default.
2160                int mySL = (screenLayout & MASK_SCREENSIZE);
2161                int oSL = (o.screenLayout & MASK_SCREENSIZE);
2162                int fixedMySL = mySL;
2163                int fixedOSL = oSL;
2164                if ((requested->screenLayout & MASK_SCREENSIZE) >= SCREENSIZE_NORMAL) {
2165                    if (fixedMySL == 0) fixedMySL = SCREENSIZE_NORMAL;
2166                    if (fixedOSL == 0) fixedOSL = SCREENSIZE_NORMAL;
2167                }
2168                // For screen size, the best match is the one that is
2169                // closest to the requested screen size, but not over
2170                // (the not over part is dealt with in match() below).
2171                if (fixedMySL == fixedOSL) {
2172                    // If the two are the same, but 'this' is actually
2173                    // undefined, then the other is really a better match.
2174                    if (mySL == 0) return false;
2175                    return true;
2176                }
2177                if (fixedMySL != fixedOSL) {
2178                    return fixedMySL > fixedOSL;
2179                }
2180            }
2181            if (((screenLayout^o.screenLayout) & MASK_SCREENLONG) != 0
2182                    && (requested->screenLayout & MASK_SCREENLONG)) {
2183                return (screenLayout & MASK_SCREENLONG);
2184            }
2185        }
2186
2187        if ((orientation != o.orientation) && requested->orientation) {
2188            return (orientation);
2189        }
2190
2191        if (uiMode || o.uiMode) {
2192            if (((uiMode^o.uiMode) & MASK_UI_MODE_TYPE) != 0
2193                    && (requested->uiMode & MASK_UI_MODE_TYPE)) {
2194                return (uiMode & MASK_UI_MODE_TYPE);
2195            }
2196            if (((uiMode^o.uiMode) & MASK_UI_MODE_NIGHT) != 0
2197                    && (requested->uiMode & MASK_UI_MODE_NIGHT)) {
2198                return (uiMode & MASK_UI_MODE_NIGHT);
2199            }
2200        }
2201
2202        if (screenType || o.screenType) {
2203            if (density != o.density) {
2204                // density is tough.  Any density is potentially useful
2205                // because the system will scale it.  Scaling down
2206                // is generally better than scaling up.
2207                // Default density counts as 160dpi (the system default)
2208                // TODO - remove 160 constants
2209                int h = (density?density:160);
2210                int l = (o.density?o.density:160);
2211                bool bImBigger = true;
2212                if (l > h) {
2213                    int t = h;
2214                    h = l;
2215                    l = t;
2216                    bImBigger = false;
2217                }
2218
2219                int reqValue = (requested->density?requested->density:160);
2220                if (reqValue >= h) {
2221                    // requested value higher than both l and h, give h
2222                    return bImBigger;
2223                }
2224                if (l >= reqValue) {
2225                    // requested value lower than both l and h, give l
2226                    return !bImBigger;
2227                }
2228                // saying that scaling down is 2x better than up
2229                if (((2 * l) - reqValue) * h > reqValue * reqValue) {
2230                    return !bImBigger;
2231                } else {
2232                    return bImBigger;
2233                }
2234            }
2235
2236            if ((touchscreen != o.touchscreen) && requested->touchscreen) {
2237                return (touchscreen);
2238            }
2239        }
2240
2241        if (input || o.input) {
2242            const int keysHidden = inputFlags & MASK_KEYSHIDDEN;
2243            const int oKeysHidden = o.inputFlags & MASK_KEYSHIDDEN;
2244            if (keysHidden != oKeysHidden) {
2245                const int reqKeysHidden =
2246                        requested->inputFlags & MASK_KEYSHIDDEN;
2247                if (reqKeysHidden) {
2248
2249                    if (!keysHidden) return false;
2250                    if (!oKeysHidden) return true;
2251                    // For compatibility, we count KEYSHIDDEN_NO as being
2252                    // the same as KEYSHIDDEN_SOFT.  Here we disambiguate
2253                    // these by making an exact match more specific.
2254                    if (reqKeysHidden == keysHidden) return true;
2255                    if (reqKeysHidden == oKeysHidden) return false;
2256                }
2257            }
2258
2259            const int navHidden = inputFlags & MASK_NAVHIDDEN;
2260            const int oNavHidden = o.inputFlags & MASK_NAVHIDDEN;
2261            if (navHidden != oNavHidden) {
2262                const int reqNavHidden =
2263                        requested->inputFlags & MASK_NAVHIDDEN;
2264                if (reqNavHidden) {
2265
2266                    if (!navHidden) return false;
2267                    if (!oNavHidden) return true;
2268                }
2269            }
2270
2271            if ((keyboard != o.keyboard) && requested->keyboard) {
2272                return (keyboard);
2273            }
2274
2275            if ((navigation != o.navigation) && requested->navigation) {
2276                return (navigation);
2277            }
2278        }
2279
2280        if (screenSize || o.screenSize) {
2281            // "Better" is based on the sum of the difference between both
2282            // width and height from the requested dimensions.  We are
2283            // assuming the invalid configs (with smaller sizes) have
2284            // already been filtered.  Note that if a particular dimension
2285            // is unspecified, we will end up with a large value (the
2286            // difference between 0 and the requested dimension), which is
2287            // good since we will prefer a config that has specified a
2288            // size value.
2289            int myDelta = 0, otherDelta = 0;
2290            if (requested->screenWidth) {
2291                myDelta += requested->screenWidth - screenWidth;
2292                otherDelta += requested->screenWidth - o.screenWidth;
2293            }
2294            if (requested->screenHeight) {
2295                myDelta += requested->screenHeight - screenHeight;
2296                otherDelta += requested->screenHeight - o.screenHeight;
2297            }
2298            if (myDelta != otherDelta) {
2299                return myDelta < otherDelta;
2300            }
2301        }
2302
2303        if (version || o.version) {
2304            if ((sdkVersion != o.sdkVersion) && requested->sdkVersion) {
2305                return (sdkVersion > o.sdkVersion);
2306            }
2307
2308            if ((minorVersion != o.minorVersion) &&
2309                    requested->minorVersion) {
2310                return (minorVersion);
2311            }
2312        }
2313
2314        return false;
2315    }
2316    return isMoreSpecificThan(o);
2317}
2318
2319bool ResTable_config::match(const ResTable_config& settings) const {
2320    if (imsi != 0) {
2321        if (mcc != 0 && mcc != settings.mcc) {
2322            return false;
2323        }
2324        if (mnc != 0 && mnc != settings.mnc) {
2325            return false;
2326        }
2327    }
2328    if (locale != 0) {
2329        // Don't consider the script & variants when deciding matches.
2330        //
2331        // If we two configs differ only in their script or language, they
2332        // can be weeded out in the isMoreSpecificThan test.
2333        if (language[0] != 0
2334            && (language[0] != settings.language[0]
2335                || language[1] != settings.language[1])) {
2336            return false;
2337        }
2338
2339        if (country[0] != 0
2340            && (country[0] != settings.country[0]
2341                || country[1] != settings.country[1])) {
2342            return false;
2343        }
2344    }
2345
2346    if (screenConfig != 0) {
2347        const int layoutDir = screenLayout&MASK_LAYOUTDIR;
2348        const int setLayoutDir = settings.screenLayout&MASK_LAYOUTDIR;
2349        if (layoutDir != 0 && layoutDir != setLayoutDir) {
2350            return false;
2351        }
2352
2353        const int screenSize = screenLayout&MASK_SCREENSIZE;
2354        const int setScreenSize = settings.screenLayout&MASK_SCREENSIZE;
2355        // Any screen sizes for larger screens than the setting do not
2356        // match.
2357        if (screenSize != 0 && screenSize > setScreenSize) {
2358            return false;
2359        }
2360
2361        const int screenLong = screenLayout&MASK_SCREENLONG;
2362        const int setScreenLong = settings.screenLayout&MASK_SCREENLONG;
2363        if (screenLong != 0 && screenLong != setScreenLong) {
2364            return false;
2365        }
2366
2367        const int uiModeType = uiMode&MASK_UI_MODE_TYPE;
2368        const int setUiModeType = settings.uiMode&MASK_UI_MODE_TYPE;
2369        if (uiModeType != 0 && uiModeType != setUiModeType) {
2370            return false;
2371        }
2372
2373        const int uiModeNight = uiMode&MASK_UI_MODE_NIGHT;
2374        const int setUiModeNight = settings.uiMode&MASK_UI_MODE_NIGHT;
2375        if (uiModeNight != 0 && uiModeNight != setUiModeNight) {
2376            return false;
2377        }
2378
2379        if (smallestScreenWidthDp != 0
2380                && smallestScreenWidthDp > settings.smallestScreenWidthDp) {
2381            return false;
2382        }
2383    }
2384    if (screenSizeDp != 0) {
2385        if (screenWidthDp != 0 && screenWidthDp > settings.screenWidthDp) {
2386            //ALOGI("Filtering out width %d in requested %d", screenWidthDp, settings.screenWidthDp);
2387            return false;
2388        }
2389        if (screenHeightDp != 0 && screenHeightDp > settings.screenHeightDp) {
2390            //ALOGI("Filtering out height %d in requested %d", screenHeightDp, settings.screenHeightDp);
2391            return false;
2392        }
2393    }
2394    if (screenType != 0) {
2395        if (orientation != 0 && orientation != settings.orientation) {
2396            return false;
2397        }
2398        // density always matches - we can scale it.  See isBetterThan
2399        if (touchscreen != 0 && touchscreen != settings.touchscreen) {
2400            return false;
2401        }
2402    }
2403    if (input != 0) {
2404        const int keysHidden = inputFlags&MASK_KEYSHIDDEN;
2405        const int setKeysHidden = settings.inputFlags&MASK_KEYSHIDDEN;
2406        if (keysHidden != 0 && keysHidden != setKeysHidden) {
2407            // For compatibility, we count a request for KEYSHIDDEN_NO as also
2408            // matching the more recent KEYSHIDDEN_SOFT.  Basically
2409            // KEYSHIDDEN_NO means there is some kind of keyboard available.
2410            //ALOGI("Matching keysHidden: have=%d, config=%d\n", keysHidden, setKeysHidden);
2411            if (keysHidden != KEYSHIDDEN_NO || setKeysHidden != KEYSHIDDEN_SOFT) {
2412                //ALOGI("No match!");
2413                return false;
2414            }
2415        }
2416        const int navHidden = inputFlags&MASK_NAVHIDDEN;
2417        const int setNavHidden = settings.inputFlags&MASK_NAVHIDDEN;
2418        if (navHidden != 0 && navHidden != setNavHidden) {
2419            return false;
2420        }
2421        if (keyboard != 0 && keyboard != settings.keyboard) {
2422            return false;
2423        }
2424        if (navigation != 0 && navigation != settings.navigation) {
2425            return false;
2426        }
2427    }
2428    if (screenSize != 0) {
2429        if (screenWidth != 0 && screenWidth > settings.screenWidth) {
2430            return false;
2431        }
2432        if (screenHeight != 0 && screenHeight > settings.screenHeight) {
2433            return false;
2434        }
2435    }
2436    if (version != 0) {
2437        if (sdkVersion != 0 && sdkVersion > settings.sdkVersion) {
2438            return false;
2439        }
2440        if (minorVersion != 0 && minorVersion != settings.minorVersion) {
2441            return false;
2442        }
2443    }
2444    return true;
2445}
2446
2447void ResTable_config::getBcp47Locale(char str[RESTABLE_MAX_LOCALE_LEN]) const {
2448    memset(str, 0, RESTABLE_MAX_LOCALE_LEN);
2449
2450    // This represents the "any" locale value, which has traditionally been
2451    // represented by the empty string.
2452    if (!language[0] && !country[0]) {
2453        return;
2454    }
2455
2456    size_t charsWritten = 0;
2457    if (language[0]) {
2458        charsWritten += unpackLanguage(str);
2459    }
2460
2461    if (localeScript[0]) {
2462        if (charsWritten) {
2463            str[charsWritten++] = '-';
2464        }
2465        memcpy(str + charsWritten, localeScript, sizeof(localeScript));
2466        charsWritten += sizeof(localeScript);
2467    }
2468
2469    if (country[0]) {
2470        if (charsWritten) {
2471            str[charsWritten++] = '-';
2472        }
2473        charsWritten += unpackRegion(str + charsWritten);
2474    }
2475
2476    if (localeVariant[0]) {
2477        if (charsWritten) {
2478            str[charsWritten++] = '-';
2479        }
2480        memcpy(str + charsWritten, localeVariant, sizeof(localeVariant));
2481    }
2482}
2483
2484/* static */ inline bool assignLocaleComponent(ResTable_config* config,
2485        const char* start, size_t size) {
2486
2487  switch (size) {
2488       case 0:
2489           return false;
2490       case 2:
2491       case 3:
2492           config->language[0] ? config->packRegion(start) : config->packLanguage(start);
2493           break;
2494       case 4:
2495           config->localeScript[0] = toupper(start[0]);
2496           for (size_t i = 1; i < 4; ++i) {
2497               config->localeScript[i] = tolower(start[i]);
2498           }
2499           break;
2500       case 5:
2501       case 6:
2502       case 7:
2503       case 8:
2504           for (size_t i = 0; i < size; ++i) {
2505               config->localeVariant[i] = tolower(start[i]);
2506           }
2507           break;
2508       default:
2509           return false;
2510  }
2511
2512  return true;
2513}
2514
2515void ResTable_config::setBcp47Locale(const char* in) {
2516    locale = 0;
2517    memset(localeScript, 0, sizeof(localeScript));
2518    memset(localeVariant, 0, sizeof(localeVariant));
2519
2520    const char* separator = in;
2521    const char* start = in;
2522    while ((separator = strchr(start, '-')) != NULL) {
2523        const size_t size = separator - start;
2524        if (!assignLocaleComponent(this, start, size)) {
2525            fprintf(stderr, "Invalid BCP-47 locale string: %s", in);
2526        }
2527
2528        start = (separator + 1);
2529    }
2530
2531    const size_t size = in + strlen(in) - start;
2532    assignLocaleComponent(this, start, size);
2533}
2534
2535String8 ResTable_config::toString() const {
2536    String8 res;
2537
2538    if (mcc != 0) {
2539        if (res.size() > 0) res.append("-");
2540        res.appendFormat("mcc%d", dtohs(mcc));
2541    }
2542    if (mnc != 0) {
2543        if (res.size() > 0) res.append("-");
2544        res.appendFormat("mnc%d", dtohs(mnc));
2545    }
2546
2547    char localeStr[RESTABLE_MAX_LOCALE_LEN];
2548    getBcp47Locale(localeStr);
2549    if (strlen(localeStr) > 0) {
2550        if (res.size() > 0) res.append("-");
2551        res.append(localeStr);
2552    }
2553
2554    if ((screenLayout&MASK_LAYOUTDIR) != 0) {
2555        if (res.size() > 0) res.append("-");
2556        switch (screenLayout&ResTable_config::MASK_LAYOUTDIR) {
2557            case ResTable_config::LAYOUTDIR_LTR:
2558                res.append("ldltr");
2559                break;
2560            case ResTable_config::LAYOUTDIR_RTL:
2561                res.append("ldrtl");
2562                break;
2563            default:
2564                res.appendFormat("layoutDir=%d",
2565                        dtohs(screenLayout&ResTable_config::MASK_LAYOUTDIR));
2566                break;
2567        }
2568    }
2569    if (smallestScreenWidthDp != 0) {
2570        if (res.size() > 0) res.append("-");
2571        res.appendFormat("sw%ddp", dtohs(smallestScreenWidthDp));
2572    }
2573    if (screenWidthDp != 0) {
2574        if (res.size() > 0) res.append("-");
2575        res.appendFormat("w%ddp", dtohs(screenWidthDp));
2576    }
2577    if (screenHeightDp != 0) {
2578        if (res.size() > 0) res.append("-");
2579        res.appendFormat("h%ddp", dtohs(screenHeightDp));
2580    }
2581    if ((screenLayout&MASK_SCREENSIZE) != SCREENSIZE_ANY) {
2582        if (res.size() > 0) res.append("-");
2583        switch (screenLayout&ResTable_config::MASK_SCREENSIZE) {
2584            case ResTable_config::SCREENSIZE_SMALL:
2585                res.append("small");
2586                break;
2587            case ResTable_config::SCREENSIZE_NORMAL:
2588                res.append("normal");
2589                break;
2590            case ResTable_config::SCREENSIZE_LARGE:
2591                res.append("large");
2592                break;
2593            case ResTable_config::SCREENSIZE_XLARGE:
2594                res.append("xlarge");
2595                break;
2596            default:
2597                res.appendFormat("screenLayoutSize=%d",
2598                        dtohs(screenLayout&ResTable_config::MASK_SCREENSIZE));
2599                break;
2600        }
2601    }
2602    if ((screenLayout&MASK_SCREENLONG) != 0) {
2603        if (res.size() > 0) res.append("-");
2604        switch (screenLayout&ResTable_config::MASK_SCREENLONG) {
2605            case ResTable_config::SCREENLONG_NO:
2606                res.append("notlong");
2607                break;
2608            case ResTable_config::SCREENLONG_YES:
2609                res.append("long");
2610                break;
2611            default:
2612                res.appendFormat("screenLayoutLong=%d",
2613                        dtohs(screenLayout&ResTable_config::MASK_SCREENLONG));
2614                break;
2615        }
2616    }
2617    if (orientation != ORIENTATION_ANY) {
2618        if (res.size() > 0) res.append("-");
2619        switch (orientation) {
2620            case ResTable_config::ORIENTATION_PORT:
2621                res.append("port");
2622                break;
2623            case ResTable_config::ORIENTATION_LAND:
2624                res.append("land");
2625                break;
2626            case ResTable_config::ORIENTATION_SQUARE:
2627                res.append("square");
2628                break;
2629            default:
2630                res.appendFormat("orientation=%d", dtohs(orientation));
2631                break;
2632        }
2633    }
2634    if ((uiMode&MASK_UI_MODE_TYPE) != UI_MODE_TYPE_ANY) {
2635        if (res.size() > 0) res.append("-");
2636        switch (uiMode&ResTable_config::MASK_UI_MODE_TYPE) {
2637            case ResTable_config::UI_MODE_TYPE_DESK:
2638                res.append("desk");
2639                break;
2640            case ResTable_config::UI_MODE_TYPE_CAR:
2641                res.append("car");
2642                break;
2643            case ResTable_config::UI_MODE_TYPE_TELEVISION:
2644                res.append("television");
2645                break;
2646            case ResTable_config::UI_MODE_TYPE_APPLIANCE:
2647                res.append("appliance");
2648                break;
2649            case ResTable_config::UI_MODE_TYPE_WATCH:
2650                res.append("watch");
2651                break;
2652            default:
2653                res.appendFormat("uiModeType=%d",
2654                        dtohs(screenLayout&ResTable_config::MASK_UI_MODE_TYPE));
2655                break;
2656        }
2657    }
2658    if ((uiMode&MASK_UI_MODE_NIGHT) != 0) {
2659        if (res.size() > 0) res.append("-");
2660        switch (uiMode&ResTable_config::MASK_UI_MODE_NIGHT) {
2661            case ResTable_config::UI_MODE_NIGHT_NO:
2662                res.append("notnight");
2663                break;
2664            case ResTable_config::UI_MODE_NIGHT_YES:
2665                res.append("night");
2666                break;
2667            default:
2668                res.appendFormat("uiModeNight=%d",
2669                        dtohs(uiMode&MASK_UI_MODE_NIGHT));
2670                break;
2671        }
2672    }
2673    if (density != DENSITY_DEFAULT) {
2674        if (res.size() > 0) res.append("-");
2675        switch (density) {
2676            case ResTable_config::DENSITY_LOW:
2677                res.append("ldpi");
2678                break;
2679            case ResTable_config::DENSITY_MEDIUM:
2680                res.append("mdpi");
2681                break;
2682            case ResTable_config::DENSITY_TV:
2683                res.append("tvdpi");
2684                break;
2685            case ResTable_config::DENSITY_HIGH:
2686                res.append("hdpi");
2687                break;
2688            case ResTable_config::DENSITY_XHIGH:
2689                res.append("xhdpi");
2690                break;
2691            case ResTable_config::DENSITY_XXHIGH:
2692                res.append("xxhdpi");
2693                break;
2694            case ResTable_config::DENSITY_XXXHIGH:
2695                res.append("xxxhdpi");
2696                break;
2697            case ResTable_config::DENSITY_NONE:
2698                res.append("nodpi");
2699                break;
2700            default:
2701                res.appendFormat("%ddpi", dtohs(density));
2702                break;
2703        }
2704    }
2705    if (touchscreen != TOUCHSCREEN_ANY) {
2706        if (res.size() > 0) res.append("-");
2707        switch (touchscreen) {
2708            case ResTable_config::TOUCHSCREEN_NOTOUCH:
2709                res.append("notouch");
2710                break;
2711            case ResTable_config::TOUCHSCREEN_FINGER:
2712                res.append("finger");
2713                break;
2714            case ResTable_config::TOUCHSCREEN_STYLUS:
2715                res.append("stylus");
2716                break;
2717            default:
2718                res.appendFormat("touchscreen=%d", dtohs(touchscreen));
2719                break;
2720        }
2721    }
2722    if ((inputFlags&MASK_KEYSHIDDEN) != 0) {
2723        if (res.size() > 0) res.append("-");
2724        switch (inputFlags&MASK_KEYSHIDDEN) {
2725            case ResTable_config::KEYSHIDDEN_NO:
2726                res.append("keysexposed");
2727                break;
2728            case ResTable_config::KEYSHIDDEN_YES:
2729                res.append("keyshidden");
2730                break;
2731            case ResTable_config::KEYSHIDDEN_SOFT:
2732                res.append("keyssoft");
2733                break;
2734        }
2735    }
2736    if (keyboard != KEYBOARD_ANY) {
2737        if (res.size() > 0) res.append("-");
2738        switch (keyboard) {
2739            case ResTable_config::KEYBOARD_NOKEYS:
2740                res.append("nokeys");
2741                break;
2742            case ResTable_config::KEYBOARD_QWERTY:
2743                res.append("qwerty");
2744                break;
2745            case ResTable_config::KEYBOARD_12KEY:
2746                res.append("12key");
2747                break;
2748            default:
2749                res.appendFormat("keyboard=%d", dtohs(keyboard));
2750                break;
2751        }
2752    }
2753    if ((inputFlags&MASK_NAVHIDDEN) != 0) {
2754        if (res.size() > 0) res.append("-");
2755        switch (inputFlags&MASK_NAVHIDDEN) {
2756            case ResTable_config::NAVHIDDEN_NO:
2757                res.append("navexposed");
2758                break;
2759            case ResTable_config::NAVHIDDEN_YES:
2760                res.append("navhidden");
2761                break;
2762            default:
2763                res.appendFormat("inputFlagsNavHidden=%d",
2764                        dtohs(inputFlags&MASK_NAVHIDDEN));
2765                break;
2766        }
2767    }
2768    if (navigation != NAVIGATION_ANY) {
2769        if (res.size() > 0) res.append("-");
2770        switch (navigation) {
2771            case ResTable_config::NAVIGATION_NONAV:
2772                res.append("nonav");
2773                break;
2774            case ResTable_config::NAVIGATION_DPAD:
2775                res.append("dpad");
2776                break;
2777            case ResTable_config::NAVIGATION_TRACKBALL:
2778                res.append("trackball");
2779                break;
2780            case ResTable_config::NAVIGATION_WHEEL:
2781                res.append("wheel");
2782                break;
2783            default:
2784                res.appendFormat("navigation=%d", dtohs(navigation));
2785                break;
2786        }
2787    }
2788    if (screenSize != 0) {
2789        if (res.size() > 0) res.append("-");
2790        res.appendFormat("%dx%d", dtohs(screenWidth), dtohs(screenHeight));
2791    }
2792    if (version != 0) {
2793        if (res.size() > 0) res.append("-");
2794        res.appendFormat("v%d", dtohs(sdkVersion));
2795        if (minorVersion != 0) {
2796            res.appendFormat(".%d", dtohs(minorVersion));
2797        }
2798    }
2799
2800    return res;
2801}
2802
2803// --------------------------------------------------------------------
2804// --------------------------------------------------------------------
2805// --------------------------------------------------------------------
2806
2807struct ResTable::Header
2808{
2809    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL),
2810        resourceIDMap(NULL), resourceIDMapSize(0) { }
2811
2812    ~Header()
2813    {
2814        free(resourceIDMap);
2815    }
2816
2817    const ResTable* const           owner;
2818    void*                           ownedData;
2819    const ResTable_header*          header;
2820    size_t                          size;
2821    const uint8_t*                  dataEnd;
2822    size_t                          index;
2823    int32_t                         cookie;
2824
2825    ResStringPool                   values;
2826    uint32_t*                       resourceIDMap;
2827    size_t                          resourceIDMapSize;
2828};
2829
2830struct ResTable::Entry {
2831    ResTable_config config;
2832    const ResTable_entry* entry;
2833    const ResTable_type* type;
2834    uint32_t specFlags;
2835    const Package* package;
2836
2837    StringPoolRef typeStr;
2838    StringPoolRef keyStr;
2839};
2840
2841struct ResTable::Type
2842{
2843    Type(const Header* _header, const Package* _package, size_t count)
2844        : header(_header), package(_package), entryCount(count),
2845          typeSpec(NULL), typeSpecFlags(NULL) { }
2846    const Header* const             header;
2847    const Package* const            package;
2848    const size_t                    entryCount;
2849    const ResTable_typeSpec*        typeSpec;
2850    const uint32_t*                 typeSpecFlags;
2851    IdmapEntries                    idmapEntries;
2852    Vector<const ResTable_type*>    configs;
2853};
2854
2855struct ResTable::Package
2856{
2857    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
2858        : owner(_owner), header(_header), package(_package), typeIdOffset(0) {
2859        if (dtohs(package->header.headerSize) == sizeof(package)) {
2860            // The package structure is the same size as the definition.
2861            // This means it contains the typeIdOffset field.
2862            typeIdOffset = package->typeIdOffset;
2863        }
2864    }
2865
2866    const ResTable* const           owner;
2867    const Header* const             header;
2868    const ResTable_package* const   package;
2869
2870    ResStringPool                   typeStrings;
2871    ResStringPool                   keyStrings;
2872
2873    size_t                          typeIdOffset;
2874};
2875
2876// A group of objects describing a particular resource package.
2877// The first in 'package' is always the root object (from the resource
2878// table that defined the package); the ones after are skins on top of it.
2879struct ResTable::PackageGroup
2880{
2881    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
2882        : owner(_owner)
2883        , name(_name)
2884        , id(_id)
2885        , largestTypeId(0)
2886        , bags(NULL)
2887        , dynamicRefTable(static_cast<uint8_t>(_id))
2888    { }
2889
2890    ~PackageGroup() {
2891        clearBagCache();
2892        const size_t numTypes = types.size();
2893        for (size_t i = 0; i < numTypes; i++) {
2894            const TypeList& typeList = types[i];
2895            const size_t numInnerTypes = typeList.size();
2896            for (size_t j = 0; j < numInnerTypes; j++) {
2897                if (typeList[j]->package->owner == owner) {
2898                    delete typeList[j];
2899                }
2900            }
2901        }
2902
2903        const size_t N = packages.size();
2904        for (size_t i=0; i<N; i++) {
2905            Package* pkg = packages[i];
2906            if (pkg->owner == owner) {
2907                delete pkg;
2908            }
2909        }
2910    }
2911
2912    void clearBagCache() {
2913        if (bags) {
2914            TABLE_NOISY(printf("bags=%p\n", bags));
2915            for (size_t i = 0; i < bags->size(); i++) {
2916                TABLE_NOISY(printf("type=%d\n", i));
2917                const TypeList& typeList = types[i];
2918                if (typeList.isEmpty()) {
2919                    bag_set** typeBags = bags->get(i);
2920                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
2921                    if (typeBags) {
2922                        const size_t N = typeList[0]->entryCount;
2923                        TABLE_NOISY(printf("type->entryCount=%x\n", N));
2924                        for (size_t j=0; j<N; j++) {
2925                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
2926                                free(typeBags[j]);
2927                        }
2928                        free(typeBags);
2929                    }
2930                }
2931            }
2932            delete bags;
2933            bags = NULL;
2934        }
2935    }
2936
2937    ssize_t findType16(const char16_t* type, size_t len) const {
2938        const size_t N = packages.size();
2939        for (size_t i = 0; i < N; i++) {
2940            ssize_t index = packages[i]->typeStrings.indexOfString(type, len);
2941            if (index >= 0) {
2942                return index + packages[i]->typeIdOffset;
2943            }
2944        }
2945        return -1;
2946    }
2947
2948    const ResTable* const           owner;
2949    String16 const                  name;
2950    uint32_t const                  id;
2951
2952    // This is mainly used to keep track of the loaded packages
2953    // and to clean them up properly. Accessing resources happens from
2954    // the 'types' array.
2955    Vector<Package*>                packages;
2956
2957    ByteBucketArray<TypeList>       types;
2958
2959    uint8_t                         largestTypeId;
2960
2961    // Computed attribute bags, first indexed by the type and second
2962    // by the entry in that type.
2963    ByteBucketArray<bag_set**>*     bags;
2964
2965    // The table mapping dynamic references to resolved references for
2966    // this package group.
2967    // TODO: We may be able to support dynamic references in overlays
2968    // by having these tables in a per-package scope rather than
2969    // per-package-group.
2970    DynamicRefTable                 dynamicRefTable;
2971};
2972
2973struct ResTable::bag_set
2974{
2975    size_t numAttrs;    // number in array
2976    size_t availAttrs;  // total space in array
2977    uint32_t typeSpecFlags;
2978    // Followed by 'numAttr' bag_entry structures.
2979};
2980
2981ResTable::Theme::Theme(const ResTable& table)
2982    : mTable(table)
2983{
2984    memset(mPackages, 0, sizeof(mPackages));
2985}
2986
2987ResTable::Theme::~Theme()
2988{
2989    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
2990        package_info* pi = mPackages[i];
2991        if (pi != NULL) {
2992            free_package(pi);
2993        }
2994    }
2995}
2996
2997void ResTable::Theme::free_package(package_info* pi)
2998{
2999    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3000        theme_entry* te = pi->types[j].entries;
3001        if (te != NULL) {
3002            free(te);
3003        }
3004    }
3005    free(pi);
3006}
3007
3008ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
3009{
3010    package_info* newpi = (package_info*)malloc(sizeof(package_info));
3011    for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3012        size_t cnt = pi->types[j].numEntries;
3013        newpi->types[j].numEntries = cnt;
3014        theme_entry* te = pi->types[j].entries;
3015        if (te != NULL) {
3016            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3017            newpi->types[j].entries = newte;
3018            memcpy(newte, te, cnt*sizeof(theme_entry));
3019        } else {
3020            newpi->types[j].entries = NULL;
3021        }
3022    }
3023    return newpi;
3024}
3025
3026status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
3027{
3028    const bag_entry* bag;
3029    uint32_t bagTypeSpecFlags = 0;
3030    mTable.lock();
3031    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
3032    TABLE_NOISY(ALOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
3033    if (N < 0) {
3034        mTable.unlock();
3035        return N;
3036    }
3037
3038    uint32_t curPackage = 0xffffffff;
3039    ssize_t curPackageIndex = 0;
3040    package_info* curPI = NULL;
3041    uint32_t curType = 0xffffffff;
3042    size_t numEntries = 0;
3043    theme_entry* curEntries = NULL;
3044
3045    const bag_entry* end = bag + N;
3046    while (bag < end) {
3047        const uint32_t attrRes = bag->map.name.ident;
3048        const uint32_t p = Res_GETPACKAGE(attrRes);
3049        const uint32_t t = Res_GETTYPE(attrRes);
3050        const uint32_t e = Res_GETENTRY(attrRes);
3051
3052        if (curPackage != p) {
3053            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
3054            if (pidx < 0) {
3055                ALOGE("Style contains key with bad package: 0x%08x\n", attrRes);
3056                bag++;
3057                continue;
3058            }
3059            curPackage = p;
3060            curPackageIndex = pidx;
3061            curPI = mPackages[pidx];
3062            if (curPI == NULL) {
3063                PackageGroup* const grp = mTable.mPackageGroups[pidx];
3064                curPI = (package_info*)malloc(sizeof(package_info));
3065                memset(curPI, 0, sizeof(*curPI));
3066                mPackages[pidx] = curPI;
3067            }
3068            curType = 0xffffffff;
3069        }
3070        if (curType != t) {
3071            if (t > Res_MAXTYPE) {
3072                ALOGE("Style contains key with bad type: 0x%08x\n", attrRes);
3073                bag++;
3074                continue;
3075            }
3076            curType = t;
3077            curEntries = curPI->types[t].entries;
3078            if (curEntries == NULL) {
3079                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
3080                const TypeList& typeList = grp->types[t];
3081                int cnt = typeList.isEmpty() ? 0 : typeList[0]->entryCount;
3082                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
3083                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
3084                curPI->types[t].numEntries = cnt;
3085                curPI->types[t].entries = curEntries;
3086            }
3087            numEntries = curPI->types[t].numEntries;
3088        }
3089        if (e >= numEntries) {
3090            ALOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
3091            bag++;
3092            continue;
3093        }
3094        theme_entry* curEntry = curEntries + e;
3095        TABLE_NOISY(ALOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
3096                attrRes, bag->map.value.dataType, bag->map.value.data,
3097                curEntry->value.dataType));
3098        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
3099            curEntry->stringBlock = bag->stringBlock;
3100            curEntry->typeSpecFlags |= bagTypeSpecFlags;
3101            curEntry->value = bag->map.value;
3102        }
3103
3104        bag++;
3105    }
3106
3107    mTable.unlock();
3108
3109    //ALOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
3110    //dumpToLog();
3111
3112    return NO_ERROR;
3113}
3114
3115status_t ResTable::Theme::setTo(const Theme& other)
3116{
3117    //ALOGI("Setting theme %p from theme %p...\n", this, &other);
3118    //dumpToLog();
3119    //other.dumpToLog();
3120
3121    if (&mTable == &other.mTable) {
3122        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3123            if (mPackages[i] != NULL) {
3124                free_package(mPackages[i]);
3125            }
3126            if (other.mPackages[i] != NULL) {
3127                mPackages[i] = copy_package(other.mPackages[i]);
3128            } else {
3129                mPackages[i] = NULL;
3130            }
3131        }
3132    } else {
3133        // @todo: need to really implement this, not just copy
3134        // the system package (which is still wrong because it isn't
3135        // fixing up resource references).
3136        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3137            if (mPackages[i] != NULL) {
3138                free_package(mPackages[i]);
3139            }
3140            if (i == 0 && other.mPackages[i] != NULL) {
3141                mPackages[i] = copy_package(other.mPackages[i]);
3142            } else {
3143                mPackages[i] = NULL;
3144            }
3145        }
3146    }
3147
3148    //ALOGI("Final theme:");
3149    //dumpToLog();
3150
3151    return NO_ERROR;
3152}
3153
3154ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
3155        uint32_t* outTypeSpecFlags) const
3156{
3157    int cnt = 20;
3158
3159    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
3160
3161    do {
3162        const ssize_t p = mTable.getResourcePackageIndex(resID);
3163        const uint32_t t = Res_GETTYPE(resID);
3164        const uint32_t e = Res_GETENTRY(resID);
3165
3166        TABLE_THEME(ALOGI("Looking up attr 0x%08x in theme %p", resID, this));
3167
3168        if (p >= 0) {
3169            const package_info* const pi = mPackages[p];
3170            TABLE_THEME(ALOGI("Found package: %p", pi));
3171            if (pi != NULL) {
3172                TABLE_THEME(ALOGI("Desired type index is %ld in avail %d", t, Res_MAXTYPE + 1));
3173                if (t <= Res_MAXTYPE) {
3174                    const type_info& ti = pi->types[t];
3175                    TABLE_THEME(ALOGI("Desired entry index is %ld in avail %d", e, ti.numEntries));
3176                    if (e < ti.numEntries) {
3177                        const theme_entry& te = ti.entries[e];
3178                        if (outTypeSpecFlags != NULL) {
3179                            *outTypeSpecFlags |= te.typeSpecFlags;
3180                        }
3181                        TABLE_THEME(ALOGI("Theme value: type=0x%x, data=0x%08x",
3182                                te.value.dataType, te.value.data));
3183                        const uint8_t type = te.value.dataType;
3184                        if (type == Res_value::TYPE_ATTRIBUTE) {
3185                            if (cnt > 0) {
3186                                cnt--;
3187                                resID = te.value.data;
3188                                continue;
3189                            }
3190                            ALOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
3191                            return BAD_INDEX;
3192                        } else if (type != Res_value::TYPE_NULL) {
3193                            *outValue = te.value;
3194                            return te.stringBlock;
3195                        }
3196                        return BAD_INDEX;
3197                    }
3198                }
3199            }
3200        }
3201        break;
3202
3203    } while (true);
3204
3205    return BAD_INDEX;
3206}
3207
3208ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
3209        ssize_t blockIndex, uint32_t* outLastRef,
3210        uint32_t* inoutTypeSpecFlags, ResTable_config* inoutConfig) const
3211{
3212    //printf("Resolving type=0x%x\n", inOutValue->dataType);
3213    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
3214        uint32_t newTypeSpecFlags;
3215        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
3216        TABLE_THEME(ALOGI("Resolving attr reference: blockIndex=%d, type=0x%x, data=%p\n",
3217             (int)blockIndex, (int)inOutValue->dataType, (void*)inOutValue->data));
3218        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
3219        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
3220        if (blockIndex < 0) {
3221            return blockIndex;
3222        }
3223    }
3224    return mTable.resolveReference(inOutValue, blockIndex, outLastRef,
3225            inoutTypeSpecFlags, inoutConfig);
3226}
3227
3228void ResTable::Theme::dumpToLog() const
3229{
3230    ALOGI("Theme %p:\n", this);
3231    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
3232        package_info* pi = mPackages[i];
3233        if (pi == NULL) continue;
3234
3235        ALOGI("  Package #0x%02x:\n", (int)(i + 1));
3236        for (size_t j = 0; j <= Res_MAXTYPE; j++) {
3237            type_info& ti = pi->types[j];
3238            if (ti.numEntries == 0) continue;
3239            ALOGI("    Type #0x%02x:\n", (int)(j + 1));
3240            for (size_t k = 0; k < ti.numEntries; k++) {
3241                const theme_entry& te = ti.entries[k];
3242                if (te.value.dataType == Res_value::TYPE_NULL) continue;
3243                ALOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
3244                     (int)Res_MAKEID(i, j, k),
3245                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
3246            }
3247        }
3248    }
3249}
3250
3251ResTable::ResTable()
3252    : mError(NO_INIT), mNextPackageId(2)
3253{
3254    memset(&mParams, 0, sizeof(mParams));
3255    memset(mPackageMap, 0, sizeof(mPackageMap));
3256    //ALOGI("Creating ResTable %p\n", this);
3257}
3258
3259ResTable::ResTable(const void* data, size_t size, const int32_t cookie, bool copyData)
3260    : mError(NO_INIT), mNextPackageId(2)
3261{
3262    memset(&mParams, 0, sizeof(mParams));
3263    memset(mPackageMap, 0, sizeof(mPackageMap));
3264    addInternal(data, size, NULL, 0, cookie, copyData);
3265    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
3266    //ALOGI("Creating ResTable %p\n", this);
3267}
3268
3269ResTable::~ResTable()
3270{
3271    //ALOGI("Destroying ResTable in %p\n", this);
3272    uninit();
3273}
3274
3275inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
3276{
3277    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
3278}
3279
3280status_t ResTable::add(const void* data, size_t size, const int32_t cookie, bool copyData) {
3281    return addInternal(data, size, NULL, 0, cookie, copyData);
3282}
3283
3284status_t ResTable::add(const void* data, size_t size, const void* idmapData, size_t idmapDataSize,
3285        const int32_t cookie, bool copyData) {
3286    return addInternal(data, size, idmapData, idmapDataSize, cookie, copyData);
3287}
3288
3289status_t ResTable::add(Asset* asset, const int32_t cookie, bool copyData) {
3290    const void* data = asset->getBuffer(true);
3291    if (data == NULL) {
3292        ALOGW("Unable to get buffer of resource asset file");
3293        return UNKNOWN_ERROR;
3294    }
3295
3296    return addInternal(data, static_cast<size_t>(asset->getLength()), NULL, 0, cookie, copyData);
3297}
3298
3299status_t ResTable::add(Asset* asset, Asset* idmapAsset, const int32_t cookie, bool copyData) {
3300    const void* data = asset->getBuffer(true);
3301    if (data == NULL) {
3302        ALOGW("Unable to get buffer of resource asset file");
3303        return UNKNOWN_ERROR;
3304    }
3305
3306    size_t idmapSize = 0;
3307    const void* idmapData = NULL;
3308    if (idmapAsset != NULL) {
3309        idmapData = idmapAsset->getBuffer(true);
3310        if (idmapData == NULL) {
3311            ALOGW("Unable to get buffer of idmap asset file");
3312            return UNKNOWN_ERROR;
3313        }
3314        idmapSize = static_cast<size_t>(idmapAsset->getLength());
3315    }
3316
3317    return addInternal(data, static_cast<size_t>(asset->getLength()),
3318            idmapData, idmapSize, cookie, copyData);
3319}
3320
3321status_t ResTable::add(ResTable* src)
3322{
3323    mError = src->mError;
3324
3325    for (size_t i=0; i<src->mHeaders.size(); i++) {
3326        mHeaders.add(src->mHeaders[i]);
3327    }
3328
3329    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
3330        PackageGroup* srcPg = src->mPackageGroups[i];
3331        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
3332        for (size_t j=0; j<srcPg->packages.size(); j++) {
3333            pg->packages.add(srcPg->packages[j]);
3334        }
3335
3336        for (size_t j = 0; j < srcPg->types.size(); j++) {
3337            if (srcPg->types[j].isEmpty()) {
3338                continue;
3339            }
3340
3341            TypeList& typeList = pg->types.editItemAt(j);
3342            typeList.appendVector(srcPg->types[j]);
3343        }
3344        pg->largestTypeId = max(pg->largestTypeId, srcPg->largestTypeId);
3345        mPackageGroups.add(pg);
3346    }
3347
3348    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
3349
3350    return mError;
3351}
3352
3353status_t ResTable::addEmpty(const int32_t cookie) {
3354    Header* header = new Header(this);
3355    header->index = mHeaders.size();
3356    header->cookie = cookie;
3357    header->values.setToEmpty();
3358    header->ownedData = calloc(1, sizeof(ResTable_header));
3359
3360    ResTable_header* resHeader = (ResTable_header*) header->ownedData;
3361    resHeader->header.type = RES_TABLE_TYPE;
3362    resHeader->header.headerSize = sizeof(ResTable_header);
3363    resHeader->header.size = sizeof(ResTable_header);
3364
3365    header->header = (const ResTable_header*) resHeader;
3366    mHeaders.add(header);
3367    return (mError=NO_ERROR);
3368}
3369
3370status_t ResTable::addInternal(const void* data, size_t dataSize, const void* idmapData, size_t idmapDataSize,
3371        const int32_t cookie, bool copyData)
3372{
3373    if (!data) {
3374        return NO_ERROR;
3375    }
3376
3377    if (dataSize < sizeof(ResTable_header)) {
3378        ALOGE("Invalid data. Size(%d) is smaller than a ResTable_header(%d).",
3379                (int) dataSize, (int) sizeof(ResTable_header));
3380        return UNKNOWN_ERROR;
3381    }
3382
3383    Header* header = new Header(this);
3384    header->index = mHeaders.size();
3385    header->cookie = cookie;
3386    if (idmapData != NULL) {
3387        header->resourceIDMap = (uint32_t*) malloc(idmapDataSize);
3388        if (header->resourceIDMap == NULL) {
3389            delete header;
3390            return (mError = NO_MEMORY);
3391        }
3392        memcpy(header->resourceIDMap, idmapData, idmapDataSize);
3393        header->resourceIDMapSize = idmapDataSize;
3394    }
3395    mHeaders.add(header);
3396
3397    const bool notDeviceEndian = htods(0xf0) != 0xf0;
3398
3399    LOAD_TABLE_NOISY(
3400        ALOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%d, copy=%d "
3401             "idmap=%p\n", data, dataSize, cookie, copyData, idmap));
3402
3403    if (copyData || notDeviceEndian) {
3404        header->ownedData = malloc(dataSize);
3405        if (header->ownedData == NULL) {
3406            return (mError=NO_MEMORY);
3407        }
3408        memcpy(header->ownedData, data, dataSize);
3409        data = header->ownedData;
3410    }
3411
3412    header->header = (const ResTable_header*)data;
3413    header->size = dtohl(header->header->header.size);
3414    //ALOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
3415    //     dtohl(header->header->header.size), header->header->header.size);
3416    LOAD_TABLE_NOISY(ALOGV("Loading ResTable @%p:\n", header->header));
3417    if (dtohs(header->header->header.headerSize) > header->size
3418            || header->size > dataSize) {
3419        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
3420             (int)dtohs(header->header->header.headerSize),
3421             (int)header->size, (int)dataSize);
3422        return (mError=BAD_TYPE);
3423    }
3424    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
3425        ALOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
3426             (int)dtohs(header->header->header.headerSize),
3427             (int)header->size);
3428        return (mError=BAD_TYPE);
3429    }
3430    header->dataEnd = ((const uint8_t*)header->header) + header->size;
3431
3432    // Iterate through all chunks.
3433    size_t curPackage = 0;
3434
3435    const ResChunk_header* chunk =
3436        (const ResChunk_header*)(((const uint8_t*)header->header)
3437                                 + dtohs(header->header->header.headerSize));
3438    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
3439           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
3440        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
3441        if (err != NO_ERROR) {
3442            return (mError=err);
3443        }
3444        TABLE_NOISY(ALOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
3445                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
3446                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3447        const size_t csize = dtohl(chunk->size);
3448        const uint16_t ctype = dtohs(chunk->type);
3449        if (ctype == RES_STRING_POOL_TYPE) {
3450            if (header->values.getError() != NO_ERROR) {
3451                // Only use the first string chunk; ignore any others that
3452                // may appear.
3453                status_t err = header->values.setTo(chunk, csize);
3454                if (err != NO_ERROR) {
3455                    return (mError=err);
3456                }
3457            } else {
3458                ALOGW("Multiple string chunks found in resource table.");
3459            }
3460        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
3461            if (curPackage >= dtohl(header->header->packageCount)) {
3462                ALOGW("More package chunks were found than the %d declared in the header.",
3463                     dtohl(header->header->packageCount));
3464                return (mError=BAD_TYPE);
3465            }
3466
3467            if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) {
3468                return mError;
3469            }
3470            curPackage++;
3471        } else {
3472            ALOGW("Unknown chunk type 0x%x in table at %p.\n",
3473                 ctype,
3474                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
3475        }
3476        chunk = (const ResChunk_header*)
3477            (((const uint8_t*)chunk) + csize);
3478    }
3479
3480    if (curPackage < dtohl(header->header->packageCount)) {
3481        ALOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
3482             (int)curPackage, dtohl(header->header->packageCount));
3483        return (mError=BAD_TYPE);
3484    }
3485    mError = header->values.getError();
3486    if (mError != NO_ERROR) {
3487        ALOGW("No string values found in resource table!");
3488    }
3489
3490    TABLE_NOISY(ALOGV("Returning from add with mError=%d\n", mError));
3491    return mError;
3492}
3493
3494status_t ResTable::getError() const
3495{
3496    return mError;
3497}
3498
3499void ResTable::uninit()
3500{
3501    mError = NO_INIT;
3502    size_t N = mPackageGroups.size();
3503    for (size_t i=0; i<N; i++) {
3504        PackageGroup* g = mPackageGroups[i];
3505        delete g;
3506    }
3507    N = mHeaders.size();
3508    for (size_t i=0; i<N; i++) {
3509        Header* header = mHeaders[i];
3510        if (header->owner == this) {
3511            if (header->ownedData) {
3512                free(header->ownedData);
3513            }
3514            delete header;
3515        }
3516    }
3517
3518    mPackageGroups.clear();
3519    mHeaders.clear();
3520}
3521
3522bool ResTable::getResourceName(uint32_t resID, bool allowUtf8, resource_name* outName) const
3523{
3524    if (mError != NO_ERROR) {
3525        return false;
3526    }
3527
3528    const ssize_t p = getResourcePackageIndex(resID);
3529    const int t = Res_GETTYPE(resID);
3530    const int e = Res_GETENTRY(resID);
3531
3532    if (p < 0) {
3533        if (Res_GETPACKAGE(resID)+1 == 0) {
3534            ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
3535        } else {
3536            ALOGW("No known package when getting name for resource number 0x%08x", resID);
3537        }
3538        return false;
3539    }
3540    if (t < 0) {
3541        ALOGW("No type identifier when getting name for resource number 0x%08x", resID);
3542        return false;
3543    }
3544
3545    const PackageGroup* const grp = mPackageGroups[p];
3546    if (grp == NULL) {
3547        ALOGW("Bad identifier when getting name for resource number 0x%08x", resID);
3548        return false;
3549    }
3550
3551    Entry entry;
3552    status_t err = getEntry(grp, t, e, NULL, &entry);
3553    if (err != NO_ERROR) {
3554        return false;
3555    }
3556
3557    outName->package = grp->name.string();
3558    outName->packageLen = grp->name.size();
3559    if (allowUtf8) {
3560        outName->type8 = entry.typeStr.string8(&outName->typeLen);
3561        outName->name8 = entry.keyStr.string8(&outName->nameLen);
3562    } else {
3563        outName->type8 = NULL;
3564        outName->name8 = NULL;
3565    }
3566    if (outName->type8 == NULL) {
3567        outName->type = entry.typeStr.string16(&outName->typeLen);
3568        // If we have a bad index for some reason, we should abort.
3569        if (outName->type == NULL) {
3570            return false;
3571        }
3572    }
3573    if (outName->name8 == NULL) {
3574        outName->name = entry.keyStr.string16(&outName->nameLen);
3575        // If we have a bad index for some reason, we should abort.
3576        if (outName->name == NULL) {
3577            return false;
3578        }
3579    }
3580
3581    return true;
3582}
3583
3584ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag, uint16_t density,
3585        uint32_t* outSpecFlags, ResTable_config* outConfig) const
3586{
3587    if (mError != NO_ERROR) {
3588        return mError;
3589    }
3590
3591    const ssize_t p = getResourcePackageIndex(resID);
3592    const int t = Res_GETTYPE(resID);
3593    const int e = Res_GETENTRY(resID);
3594
3595    if (p < 0) {
3596        if (Res_GETPACKAGE(resID)+1 == 0) {
3597            ALOGW("No package identifier when getting value for resource number 0x%08x", resID);
3598        } else {
3599            ALOGW("No known package when getting value for resource number 0x%08x", resID);
3600        }
3601        return BAD_INDEX;
3602    }
3603    if (t < 0) {
3604        ALOGW("No type identifier when getting value for resource number 0x%08x", resID);
3605        return BAD_INDEX;
3606    }
3607
3608    const PackageGroup* const grp = mPackageGroups[p];
3609    if (grp == NULL) {
3610        ALOGW("Bad identifier when getting value for resource number 0x%08x", resID);
3611        return BAD_INDEX;
3612    }
3613
3614    // Allow overriding density
3615    ResTable_config desiredConfig = mParams;
3616    if (density > 0) {
3617        desiredConfig.density = density;
3618    }
3619
3620    Entry entry;
3621    status_t err = getEntry(grp, t, e, &desiredConfig, &entry);
3622    if (err != NO_ERROR) {
3623        ALOGW("Failure getting entry for 0x%08x (t=%d e=%d) (error %d)\n",
3624                resID, t, e, err);
3625        return err;
3626    }
3627
3628    if ((dtohs(entry.entry->flags) & ResTable_entry::FLAG_COMPLEX) != 0) {
3629        if (!mayBeBag) {
3630            ALOGW("Requesting resource 0x%08x failed because it is complex\n", resID);
3631        }
3632        return BAD_VALUE;
3633    }
3634
3635    const Res_value* value = reinterpret_cast<const Res_value*>(
3636            reinterpret_cast<const uint8_t*>(entry.entry) + entry.entry->size);
3637
3638    outValue->size = dtohs(value->size);
3639    outValue->res0 = value->res0;
3640    outValue->dataType = value->dataType;
3641    outValue->data = dtohl(value->data);
3642
3643    // The reference may be pointing to a resource in a shared library. These
3644    // references have build-time generated package IDs. These ids may not match
3645    // the actual package IDs of the corresponding packages in this ResTable.
3646    // We need to fix the package ID based on a mapping.
3647    if (grp->dynamicRefTable.lookupResourceValue(outValue) != NO_ERROR) {
3648        ALOGW("Failed to resolve referenced package: 0x%08x", outValue->data);
3649        return BAD_VALUE;
3650    }
3651
3652    TABLE_NOISY(size_t len;
3653          printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
3654                 entry.package->header->index,
3655                 outValue->dataType,
3656                 outValue->dataType == Res_value::TYPE_STRING
3657                 ? String8(entry.package->header->values.stringAt(
3658                     outValue->data, &len)).string()
3659                 : "",
3660                 outValue->data));
3661
3662    if (outSpecFlags != NULL) {
3663        *outSpecFlags = entry.specFlags;
3664    }
3665
3666    if (outConfig != NULL) {
3667        *outConfig = entry.config;
3668    }
3669
3670    return entry.package->header->index;
3671}
3672
3673ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
3674        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags,
3675        ResTable_config* outConfig) const
3676{
3677    int count=0;
3678    while (blockIndex >= 0 && value->dataType == Res_value::TYPE_REFERENCE
3679            && value->data != 0 && count < 20) {
3680        if (outLastRef) *outLastRef = value->data;
3681        uint32_t lastRef = value->data;
3682        uint32_t newFlags = 0;
3683        const ssize_t newIndex = getResource(value->data, value, true, 0, &newFlags,
3684                outConfig);
3685        if (newIndex == BAD_INDEX) {
3686            return BAD_INDEX;
3687        }
3688        TABLE_THEME(ALOGI("Resolving reference %p: newIndex=%d, type=0x%x, data=%p\n",
3689             (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data));
3690        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
3691        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
3692        if (newIndex < 0) {
3693            // This can fail if the resource being referenced is a style...
3694            // in this case, just return the reference, and expect the
3695            // caller to deal with.
3696            return blockIndex;
3697        }
3698        blockIndex = newIndex;
3699        count++;
3700    }
3701    return blockIndex;
3702}
3703
3704const char16_t* ResTable::valueToString(
3705    const Res_value* value, size_t stringBlock,
3706    char16_t /*tmpBuffer*/ [TMP_BUFFER_SIZE], size_t* outLen)
3707{
3708    if (!value) {
3709        return NULL;
3710    }
3711    if (value->dataType == value->TYPE_STRING) {
3712        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
3713    }
3714    // XXX do int to string conversions.
3715    return NULL;
3716}
3717
3718ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
3719{
3720    mLock.lock();
3721    ssize_t err = getBagLocked(resID, outBag);
3722    if (err < NO_ERROR) {
3723        //printf("*** get failed!  unlocking\n");
3724        mLock.unlock();
3725    }
3726    return err;
3727}
3728
3729void ResTable::unlockBag(const bag_entry* /*bag*/) const
3730{
3731    //printf("<<< unlockBag %p\n", this);
3732    mLock.unlock();
3733}
3734
3735void ResTable::lock() const
3736{
3737    mLock.lock();
3738}
3739
3740void ResTable::unlock() const
3741{
3742    mLock.unlock();
3743}
3744
3745ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
3746        uint32_t* outTypeSpecFlags) const
3747{
3748    if (mError != NO_ERROR) {
3749        return mError;
3750    }
3751
3752    const ssize_t p = getResourcePackageIndex(resID);
3753    const int t = Res_GETTYPE(resID);
3754    const int e = Res_GETENTRY(resID);
3755
3756    if (p < 0) {
3757        ALOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
3758        return BAD_INDEX;
3759    }
3760    if (t < 0) {
3761        ALOGW("No type identifier when getting bag for resource number 0x%08x", resID);
3762        return BAD_INDEX;
3763    }
3764
3765    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
3766    PackageGroup* const grp = mPackageGroups[p];
3767    if (grp == NULL) {
3768        ALOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
3769        return BAD_INDEX;
3770    }
3771
3772    const TypeList& typeConfigs = grp->types[t];
3773    if (typeConfigs.isEmpty()) {
3774        ALOGW("Type identifier 0x%x does not exist.", t+1);
3775        return BAD_INDEX;
3776    }
3777
3778    const size_t NENTRY = typeConfigs[0]->entryCount;
3779    if (e >= (int)NENTRY) {
3780        ALOGW("Entry identifier 0x%x is larger than entry count 0x%x",
3781             e, (int)typeConfigs[0]->entryCount);
3782        return BAD_INDEX;
3783    }
3784
3785    // First see if we've already computed this bag...
3786    if (grp->bags) {
3787        bag_set** typeSet = grp->bags->get(t);
3788        if (typeSet) {
3789            bag_set* set = typeSet[e];
3790            if (set) {
3791                if (set != (bag_set*)0xFFFFFFFF) {
3792                    if (outTypeSpecFlags != NULL) {
3793                        *outTypeSpecFlags = set->typeSpecFlags;
3794                    }
3795                    *outBag = (bag_entry*)(set+1);
3796                    //ALOGI("Found existing bag for: %p\n", (void*)resID);
3797                    return set->numAttrs;
3798                }
3799                ALOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
3800                     resID);
3801                return BAD_INDEX;
3802            }
3803        }
3804    }
3805
3806    // Bag not found, we need to compute it!
3807    if (!grp->bags) {
3808        grp->bags = new ByteBucketArray<bag_set**>();
3809        if (!grp->bags) return NO_MEMORY;
3810    }
3811
3812    bag_set** typeSet = grp->bags->get(t);
3813    if (!typeSet) {
3814        typeSet = (bag_set**)calloc(NENTRY, sizeof(bag_set*));
3815        if (!typeSet) return NO_MEMORY;
3816        grp->bags->set(t, typeSet);
3817    }
3818
3819    // Mark that we are currently working on this one.
3820    typeSet[e] = (bag_set*)0xFFFFFFFF;
3821
3822    TABLE_NOISY(ALOGI("Building bag: %p\n", (void*)resID));
3823
3824    // Now collect all bag attributes
3825    Entry entry;
3826    status_t err = getEntry(grp, t, e, &mParams, &entry);
3827    if (err != NO_ERROR) {
3828        return err;
3829    }
3830
3831    const uint16_t entrySize = dtohs(entry.entry->size);
3832    const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
3833        ? dtohl(((const ResTable_map_entry*)entry.entry)->parent.ident) : 0;
3834    const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
3835        ? dtohl(((const ResTable_map_entry*)entry.entry)->count) : 0;
3836
3837    size_t N = count;
3838
3839    TABLE_NOISY(ALOGI("Found map: size=%p parent=%p count=%d\n",
3840                     entrySize, parent, count));
3841
3842    // If this map inherits from another, we need to start
3843    // with its parent's values.  Otherwise start out empty.
3844    TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
3845                       entrySize, parent));
3846
3847    // This is what we are building.
3848    bag_set* set = NULL;
3849
3850    if (parent) {
3851        uint32_t resolvedParent = parent;
3852
3853        // Bags encode a parent reference without using the standard
3854        // Res_value structure. That means we must always try to
3855        // resolve a parent reference in case it is actually a
3856        // TYPE_DYNAMIC_REFERENCE.
3857        status_t err = grp->dynamicRefTable.lookupResourceId(&resolvedParent);
3858        if (err != NO_ERROR) {
3859            ALOGE("Failed resolving bag parent id 0x%08x", parent);
3860            return UNKNOWN_ERROR;
3861        }
3862
3863        const bag_entry* parentBag;
3864        uint32_t parentTypeSpecFlags = 0;
3865        const ssize_t NP = getBagLocked(resolvedParent, &parentBag, &parentTypeSpecFlags);
3866        const size_t NT = ((NP >= 0) ? NP : 0) + N;
3867        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
3868        if (set == NULL) {
3869            return NO_MEMORY;
3870        }
3871        if (NP > 0) {
3872            memcpy(set+1, parentBag, NP*sizeof(bag_entry));
3873            set->numAttrs = NP;
3874            TABLE_NOISY(ALOGI("Initialized new bag with %d inherited attributes.\n", NP));
3875        } else {
3876            TABLE_NOISY(ALOGI("Initialized new bag with no inherited attributes.\n"));
3877            set->numAttrs = 0;
3878        }
3879        set->availAttrs = NT;
3880        set->typeSpecFlags = parentTypeSpecFlags;
3881    } else {
3882        set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
3883        if (set == NULL) {
3884            return NO_MEMORY;
3885        }
3886        set->numAttrs = 0;
3887        set->availAttrs = N;
3888        set->typeSpecFlags = 0;
3889    }
3890
3891    set->typeSpecFlags |= entry.specFlags;
3892
3893    // Now merge in the new attributes...
3894    size_t curOff = (reinterpret_cast<uintptr_t>(entry.entry) - reinterpret_cast<uintptr_t>(entry.type))
3895        + dtohs(entry.entry->size);
3896    const ResTable_map* map;
3897    bag_entry* entries = (bag_entry*)(set+1);
3898    size_t curEntry = 0;
3899    uint32_t pos = 0;
3900    TABLE_NOISY(ALOGI("Starting with set %p, entries=%p, avail=%d\n",
3901                 set, entries, set->availAttrs));
3902    while (pos < count) {
3903        TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
3904
3905        if (curOff > (dtohl(entry.type->header.size)-sizeof(ResTable_map))) {
3906            ALOGW("ResTable_map at %d is beyond type chunk data %d",
3907                 (int)curOff, dtohl(entry.type->header.size));
3908            return BAD_TYPE;
3909        }
3910        map = (const ResTable_map*)(((const uint8_t*)entry.type) + curOff);
3911        N++;
3912
3913        uint32_t newName = htodl(map->name.ident);
3914        if (!Res_INTERNALID(newName)) {
3915            // Attributes don't have a resource id as the name. They specify
3916            // other data, which would be wrong to change via a lookup.
3917            if (grp->dynamicRefTable.lookupResourceId(&newName) != NO_ERROR) {
3918                ALOGE("Failed resolving ResTable_map name at %d with ident 0x%08x",
3919                        (int) curOff, (int) newName);
3920                return UNKNOWN_ERROR;
3921            }
3922        }
3923
3924        bool isInside;
3925        uint32_t oldName = 0;
3926        while ((isInside=(curEntry < set->numAttrs))
3927                && (oldName=entries[curEntry].map.name.ident) < newName) {
3928            TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
3929                         curEntry, entries[curEntry].map.name.ident));
3930            curEntry++;
3931        }
3932
3933        if ((!isInside) || oldName != newName) {
3934            // This is a new attribute...  figure out what to do with it.
3935            if (set->numAttrs >= set->availAttrs) {
3936                // Need to alloc more memory...
3937                const size_t newAvail = set->availAttrs+N;
3938                set = (bag_set*)realloc(set,
3939                                        sizeof(bag_set)
3940                                        + sizeof(bag_entry)*newAvail);
3941                if (set == NULL) {
3942                    return NO_MEMORY;
3943                }
3944                set->availAttrs = newAvail;
3945                entries = (bag_entry*)(set+1);
3946                TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
3947                             set, entries, set->availAttrs));
3948            }
3949            if (isInside) {
3950                // Going in the middle, need to make space.
3951                memmove(entries+curEntry+1, entries+curEntry,
3952                        sizeof(bag_entry)*(set->numAttrs-curEntry));
3953                set->numAttrs++;
3954            }
3955            TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
3956                         curEntry, newName));
3957        } else {
3958            TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
3959                         curEntry, oldName));
3960        }
3961
3962        bag_entry* cur = entries+curEntry;
3963
3964        cur->stringBlock = entry.package->header->index;
3965        cur->map.name.ident = newName;
3966        cur->map.value.copyFrom_dtoh(map->value);
3967        status_t err = grp->dynamicRefTable.lookupResourceValue(&cur->map.value);
3968        if (err != NO_ERROR) {
3969            ALOGE("Reference item(0x%08x) in bag could not be resolved.", cur->map.value.data);
3970            return UNKNOWN_ERROR;
3971        }
3972
3973        TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
3974                     curEntry, cur, cur->stringBlock, cur->map.name.ident,
3975                     cur->map.value.dataType, cur->map.value.data));
3976
3977        // On to the next!
3978        curEntry++;
3979        pos++;
3980        const size_t size = dtohs(map->value.size);
3981        curOff += size + sizeof(*map)-sizeof(map->value);
3982    };
3983
3984    if (curEntry > set->numAttrs) {
3985        set->numAttrs = curEntry;
3986    }
3987
3988    // And this is it...
3989    typeSet[e] = set;
3990    if (set) {
3991        if (outTypeSpecFlags != NULL) {
3992            *outTypeSpecFlags = set->typeSpecFlags;
3993        }
3994        *outBag = (bag_entry*)(set+1);
3995        TABLE_NOISY(ALOGI("Returning %d attrs\n", set->numAttrs));
3996        return set->numAttrs;
3997    }
3998    return BAD_INDEX;
3999}
4000
4001void ResTable::setParameters(const ResTable_config* params)
4002{
4003    mLock.lock();
4004    TABLE_GETENTRY(ALOGI("Setting parameters: %s\n", params->toString().string()));
4005    mParams = *params;
4006    for (size_t i=0; i<mPackageGroups.size(); i++) {
4007        TABLE_NOISY(ALOGI("CLEARING BAGS FOR GROUP %d!", i));
4008        mPackageGroups[i]->clearBagCache();
4009    }
4010    mLock.unlock();
4011}
4012
4013void ResTable::getParameters(ResTable_config* params) const
4014{
4015    mLock.lock();
4016    *params = mParams;
4017    mLock.unlock();
4018}
4019
4020struct id_name_map {
4021    uint32_t id;
4022    size_t len;
4023    char16_t name[6];
4024};
4025
4026const static id_name_map ID_NAMES[] = {
4027    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
4028    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
4029    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
4030    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
4031    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
4032    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
4033    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
4034    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
4035    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
4036    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
4037};
4038
4039uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
4040                                     const char16_t* type, size_t typeLen,
4041                                     const char16_t* package,
4042                                     size_t packageLen,
4043                                     uint32_t* outTypeSpecFlags) const
4044{
4045    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
4046
4047    // Check for internal resource identifier as the very first thing, so
4048    // that we will always find them even when there are no resources.
4049    if (name[0] == '^') {
4050        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
4051        size_t len;
4052        for (int i=0; i<N; i++) {
4053            const id_name_map* m = ID_NAMES + i;
4054            len = m->len;
4055            if (len != nameLen) {
4056                continue;
4057            }
4058            for (size_t j=1; j<len; j++) {
4059                if (m->name[j] != name[j]) {
4060                    goto nope;
4061                }
4062            }
4063            if (outTypeSpecFlags) {
4064                *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4065            }
4066            return m->id;
4067nope:
4068            ;
4069        }
4070        if (nameLen > 7) {
4071            if (name[1] == 'i' && name[2] == 'n'
4072                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
4073                && name[6] == '_') {
4074                int index = atoi(String8(name + 7, nameLen - 7).string());
4075                if (Res_CHECKID(index)) {
4076                    ALOGW("Array resource index: %d is too large.",
4077                         index);
4078                    return 0;
4079                }
4080                if (outTypeSpecFlags) {
4081                    *outTypeSpecFlags = ResTable_typeSpec::SPEC_PUBLIC;
4082                }
4083                return  Res_MAKEARRAY(index);
4084            }
4085        }
4086        return 0;
4087    }
4088
4089    if (mError != NO_ERROR) {
4090        return 0;
4091    }
4092
4093    bool fakePublic = false;
4094
4095    // Figure out the package and type we are looking in...
4096
4097    const char16_t* packageEnd = NULL;
4098    const char16_t* typeEnd = NULL;
4099    const char16_t* const nameEnd = name+nameLen;
4100    const char16_t* p = name;
4101    while (p < nameEnd) {
4102        if (*p == ':') packageEnd = p;
4103        else if (*p == '/') typeEnd = p;
4104        p++;
4105    }
4106    if (*name == '@') {
4107        name++;
4108        if (*name == '*') {
4109            fakePublic = true;
4110            name++;
4111        }
4112    }
4113    if (name >= nameEnd) {
4114        return 0;
4115    }
4116
4117    if (packageEnd) {
4118        package = name;
4119        packageLen = packageEnd-name;
4120        name = packageEnd+1;
4121    } else if (!package) {
4122        return 0;
4123    }
4124
4125    if (typeEnd) {
4126        type = name;
4127        typeLen = typeEnd-name;
4128        name = typeEnd+1;
4129    } else if (!type) {
4130        return 0;
4131    }
4132
4133    if (name >= nameEnd) {
4134        return 0;
4135    }
4136    nameLen = nameEnd-name;
4137
4138    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
4139                 String8(type, typeLen).string(),
4140                 String8(name, nameLen).string(),
4141                 String8(package, packageLen).string()));
4142
4143    const size_t NG = mPackageGroups.size();
4144    for (size_t ig=0; ig<NG; ig++) {
4145        const PackageGroup* group = mPackageGroups[ig];
4146
4147        if (strzcmp16(package, packageLen,
4148                      group->name.string(), group->name.size())) {
4149            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
4150            continue;
4151        }
4152
4153        const ssize_t ti = group->findType16(type, typeLen);
4154        if (ti < 0) {
4155            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
4156            continue;
4157        }
4158
4159        const TypeList& typeList = group->types[ti];
4160        if (typeList.isEmpty()) {
4161            TABLE_NOISY(printf("Expected type structure not found in package %s for index %d\n",
4162                               String8(group->name).string(), ti));
4163            continue;
4164        }
4165
4166        const size_t typeCount = typeList.size();
4167        for (size_t i = 0; i < typeCount; i++) {
4168            const Type* t = typeList[i];
4169            const ssize_t ei = t->package->keyStrings.indexOfString(name, nameLen);
4170            if (ei < 0) {
4171                continue;
4172            }
4173
4174            const size_t configCount = t->configs.size();
4175            for (size_t j = 0; j < configCount; j++) {
4176                const TypeVariant tv(t->configs[j]);
4177                for (TypeVariant::iterator iter = tv.beginEntries();
4178                     iter != tv.endEntries();
4179                     iter++) {
4180                    const ResTable_entry* entry = *iter;
4181                    if (entry == NULL) {
4182                        continue;
4183                    }
4184
4185                    if (dtohl(entry->key.index) == (size_t) ei) {
4186                        uint32_t resId = Res_MAKEID(group->id - 1, ti, iter.index());
4187                        if (outTypeSpecFlags) {
4188                            Entry result;
4189                            if (getEntry(group, ti, iter.index(), NULL, &result) != NO_ERROR) {
4190                                ALOGW("Failed to find spec flags for %s:%s/%s (0x%08x)",
4191                                        String8(group->name).string(),
4192                                        String8(String16(type, typeLen)).string(),
4193                                        String8(String16(name, nameLen)).string(),
4194                                        resId);
4195                                return 0;
4196                            }
4197                            *outTypeSpecFlags = result.specFlags;
4198
4199                            if (fakePublic) {
4200                                *outTypeSpecFlags |= ResTable_typeSpec::SPEC_PUBLIC;
4201                            }
4202                        }
4203                        return resId;
4204                    }
4205                }
4206            }
4207        }
4208        break;
4209    }
4210    return 0;
4211}
4212
4213bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
4214                                 String16* outPackage,
4215                                 String16* outType,
4216                                 String16* outName,
4217                                 const String16* defType,
4218                                 const String16* defPackage,
4219                                 const char** outErrorMsg,
4220                                 bool* outPublicOnly)
4221{
4222    const char16_t* packageEnd = NULL;
4223    const char16_t* typeEnd = NULL;
4224    const char16_t* p = refStr;
4225    const char16_t* const end = p + refLen;
4226    while (p < end) {
4227        if (*p == ':') packageEnd = p;
4228        else if (*p == '/') {
4229            typeEnd = p;
4230            break;
4231        }
4232        p++;
4233    }
4234    p = refStr;
4235    if (*p == '@') p++;
4236
4237    if (outPublicOnly != NULL) {
4238        *outPublicOnly = true;
4239    }
4240    if (*p == '*') {
4241        p++;
4242        if (outPublicOnly != NULL) {
4243            *outPublicOnly = false;
4244        }
4245    }
4246
4247    if (packageEnd) {
4248        *outPackage = String16(p, packageEnd-p);
4249        p = packageEnd+1;
4250    } else {
4251        if (!defPackage) {
4252            if (outErrorMsg) {
4253                *outErrorMsg = "No resource package specified";
4254            }
4255            return false;
4256        }
4257        *outPackage = *defPackage;
4258    }
4259    if (typeEnd) {
4260        *outType = String16(p, typeEnd-p);
4261        p = typeEnd+1;
4262    } else {
4263        if (!defType) {
4264            if (outErrorMsg) {
4265                *outErrorMsg = "No resource type specified";
4266            }
4267            return false;
4268        }
4269        *outType = *defType;
4270    }
4271    *outName = String16(p, end-p);
4272    if(**outPackage == 0) {
4273        if(outErrorMsg) {
4274            *outErrorMsg = "Resource package cannot be an empty string";
4275        }
4276        return false;
4277    }
4278    if(**outType == 0) {
4279        if(outErrorMsg) {
4280            *outErrorMsg = "Resource type cannot be an empty string";
4281        }
4282        return false;
4283    }
4284    if(**outName == 0) {
4285        if(outErrorMsg) {
4286            *outErrorMsg = "Resource id cannot be an empty string";
4287        }
4288        return false;
4289    }
4290    return true;
4291}
4292
4293static uint32_t get_hex(char c, bool* outError)
4294{
4295    if (c >= '0' && c <= '9') {
4296        return c - '0';
4297    } else if (c >= 'a' && c <= 'f') {
4298        return c - 'a' + 0xa;
4299    } else if (c >= 'A' && c <= 'F') {
4300        return c - 'A' + 0xa;
4301    }
4302    *outError = true;
4303    return 0;
4304}
4305
4306struct unit_entry
4307{
4308    const char* name;
4309    size_t len;
4310    uint8_t type;
4311    uint32_t unit;
4312    float scale;
4313};
4314
4315static const unit_entry unitNames[] = {
4316    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
4317    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4318    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
4319    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
4320    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
4321    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
4322    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
4323    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
4324    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
4325    { NULL, 0, 0, 0, 0 }
4326};
4327
4328static bool parse_unit(const char* str, Res_value* outValue,
4329                       float* outScale, const char** outEnd)
4330{
4331    const char* end = str;
4332    while (*end != 0 && !isspace((unsigned char)*end)) {
4333        end++;
4334    }
4335    const size_t len = end-str;
4336
4337    const char* realEnd = end;
4338    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
4339        realEnd++;
4340    }
4341    if (*realEnd != 0) {
4342        return false;
4343    }
4344
4345    const unit_entry* cur = unitNames;
4346    while (cur->name) {
4347        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
4348            outValue->dataType = cur->type;
4349            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
4350            *outScale = cur->scale;
4351            *outEnd = end;
4352            //printf("Found unit %s for %s\n", cur->name, str);
4353            return true;
4354        }
4355        cur++;
4356    }
4357
4358    return false;
4359}
4360
4361
4362bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
4363{
4364    while (len > 0 && isspace16(*s)) {
4365        s++;
4366        len--;
4367    }
4368
4369    if (len <= 0) {
4370        return false;
4371    }
4372
4373    size_t i = 0;
4374    int32_t val = 0;
4375    bool neg = false;
4376
4377    if (*s == '-') {
4378        neg = true;
4379        i++;
4380    }
4381
4382    if (s[i] < '0' || s[i] > '9') {
4383        return false;
4384    }
4385
4386    // Decimal or hex?
4387    if (s[i] == '0' && s[i+1] == 'x') {
4388        if (outValue)
4389            outValue->dataType = outValue->TYPE_INT_HEX;
4390        i += 2;
4391        bool error = false;
4392        while (i < len && !error) {
4393            val = (val*16) + get_hex(s[i], &error);
4394            i++;
4395        }
4396        if (error) {
4397            return false;
4398        }
4399    } else {
4400        if (outValue)
4401            outValue->dataType = outValue->TYPE_INT_DEC;
4402        while (i < len) {
4403            if (s[i] < '0' || s[i] > '9') {
4404                return false;
4405            }
4406            val = (val*10) + s[i]-'0';
4407            i++;
4408        }
4409    }
4410
4411    if (neg) val = -val;
4412
4413    while (i < len && isspace16(s[i])) {
4414        i++;
4415    }
4416
4417    if (i == len) {
4418        if (outValue)
4419            outValue->data = val;
4420        return true;
4421    }
4422
4423    return false;
4424}
4425
4426bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
4427{
4428    while (len > 0 && isspace16(*s)) {
4429        s++;
4430        len--;
4431    }
4432
4433    if (len <= 0) {
4434        return false;
4435    }
4436
4437    char buf[128];
4438    int i=0;
4439    while (len > 0 && *s != 0 && i < 126) {
4440        if (*s > 255) {
4441            return false;
4442        }
4443        buf[i++] = *s++;
4444        len--;
4445    }
4446
4447    if (len > 0) {
4448        return false;
4449    }
4450    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
4451        return false;
4452    }
4453
4454    buf[i] = 0;
4455    const char* end;
4456    float f = strtof(buf, (char**)&end);
4457
4458    if (*end != 0 && !isspace((unsigned char)*end)) {
4459        // Might be a unit...
4460        float scale;
4461        if (parse_unit(end, outValue, &scale, &end)) {
4462            f *= scale;
4463            const bool neg = f < 0;
4464            if (neg) f = -f;
4465            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
4466            uint32_t radix;
4467            uint32_t shift;
4468            if ((bits&0x7fffff) == 0) {
4469                // Always use 23p0 if there is no fraction, just to make
4470                // things easier to read.
4471                radix = Res_value::COMPLEX_RADIX_23p0;
4472                shift = 23;
4473            } else if ((bits&0xffffffffff800000LL) == 0) {
4474                // Magnitude is zero -- can fit in 0 bits of precision.
4475                radix = Res_value::COMPLEX_RADIX_0p23;
4476                shift = 0;
4477            } else if ((bits&0xffffffff80000000LL) == 0) {
4478                // Magnitude can fit in 8 bits of precision.
4479                radix = Res_value::COMPLEX_RADIX_8p15;
4480                shift = 8;
4481            } else if ((bits&0xffffff8000000000LL) == 0) {
4482                // Magnitude can fit in 16 bits of precision.
4483                radix = Res_value::COMPLEX_RADIX_16p7;
4484                shift = 16;
4485            } else {
4486                // Magnitude needs entire range, so no fractional part.
4487                radix = Res_value::COMPLEX_RADIX_23p0;
4488                shift = 23;
4489            }
4490            int32_t mantissa = (int32_t)(
4491                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
4492            if (neg) {
4493                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
4494            }
4495            outValue->data |=
4496                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
4497                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
4498            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
4499            //       f * (neg ? -1 : 1), bits, f*(1<<23),
4500            //       radix, shift, outValue->data);
4501            return true;
4502        }
4503        return false;
4504    }
4505
4506    while (*end != 0 && isspace((unsigned char)*end)) {
4507        end++;
4508    }
4509
4510    if (*end == 0) {
4511        if (outValue) {
4512            outValue->dataType = outValue->TYPE_FLOAT;
4513            *(float*)(&outValue->data) = f;
4514            return true;
4515        }
4516    }
4517
4518    return false;
4519}
4520
4521bool ResTable::stringToValue(Res_value* outValue, String16* outString,
4522                             const char16_t* s, size_t len,
4523                             bool preserveSpaces, bool coerceType,
4524                             uint32_t attrID,
4525                             const String16* defType,
4526                             const String16* defPackage,
4527                             Accessor* accessor,
4528                             void* accessorCookie,
4529                             uint32_t attrType,
4530                             bool enforcePrivate) const
4531{
4532    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
4533    const char* errorMsg = NULL;
4534
4535    outValue->size = sizeof(Res_value);
4536    outValue->res0 = 0;
4537
4538    // First strip leading/trailing whitespace.  Do this before handling
4539    // escapes, so they can be used to force whitespace into the string.
4540    if (!preserveSpaces) {
4541        while (len > 0 && isspace16(*s)) {
4542            s++;
4543            len--;
4544        }
4545        while (len > 0 && isspace16(s[len-1])) {
4546            len--;
4547        }
4548        // If the string ends with '\', then we keep the space after it.
4549        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
4550            len++;
4551        }
4552    }
4553
4554    //printf("Value for: %s\n", String8(s, len).string());
4555
4556    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
4557    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
4558    bool fromAccessor = false;
4559    if (attrID != 0 && !Res_INTERNALID(attrID)) {
4560        const ssize_t p = getResourcePackageIndex(attrID);
4561        const bag_entry* bag;
4562        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4563        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
4564        if (cnt >= 0) {
4565            while (cnt > 0) {
4566                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
4567                switch (bag->map.name.ident) {
4568                case ResTable_map::ATTR_TYPE:
4569                    attrType = bag->map.value.data;
4570                    break;
4571                case ResTable_map::ATTR_MIN:
4572                    attrMin = bag->map.value.data;
4573                    break;
4574                case ResTable_map::ATTR_MAX:
4575                    attrMax = bag->map.value.data;
4576                    break;
4577                case ResTable_map::ATTR_L10N:
4578                    l10nReq = bag->map.value.data;
4579                    break;
4580                }
4581                bag++;
4582                cnt--;
4583            }
4584            unlockBag(bag);
4585        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
4586            fromAccessor = true;
4587            if (attrType == ResTable_map::TYPE_ENUM
4588                    || attrType == ResTable_map::TYPE_FLAGS
4589                    || attrType == ResTable_map::TYPE_INTEGER) {
4590                accessor->getAttributeMin(attrID, &attrMin);
4591                accessor->getAttributeMax(attrID, &attrMax);
4592            }
4593            if (localizationSetting) {
4594                l10nReq = accessor->getAttributeL10N(attrID);
4595            }
4596        }
4597    }
4598
4599    const bool canStringCoerce =
4600        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
4601
4602    if (*s == '@') {
4603        outValue->dataType = outValue->TYPE_REFERENCE;
4604
4605        // Note: we don't check attrType here because the reference can
4606        // be to any other type; we just need to count on the client making
4607        // sure the referenced type is correct.
4608
4609        //printf("Looking up ref: %s\n", String8(s, len).string());
4610
4611        // It's a reference!
4612        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
4613            outValue->data = 0;
4614            return true;
4615        } else {
4616            bool createIfNotFound = false;
4617            const char16_t* resourceRefName;
4618            int resourceNameLen;
4619            if (len > 2 && s[1] == '+') {
4620                createIfNotFound = true;
4621                resourceRefName = s + 2;
4622                resourceNameLen = len - 2;
4623            } else if (len > 2 && s[1] == '*') {
4624                enforcePrivate = false;
4625                resourceRefName = s + 2;
4626                resourceNameLen = len - 2;
4627            } else {
4628                createIfNotFound = false;
4629                resourceRefName = s + 1;
4630                resourceNameLen = len - 1;
4631            }
4632            String16 package, type, name;
4633            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
4634                                   defType, defPackage, &errorMsg)) {
4635                if (accessor != NULL) {
4636                    accessor->reportError(accessorCookie, errorMsg);
4637                }
4638                return false;
4639            }
4640
4641            uint32_t specFlags = 0;
4642            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
4643                    type.size(), package.string(), package.size(), &specFlags);
4644            if (rid != 0) {
4645                if (enforcePrivate) {
4646                    if (accessor == NULL || accessor->getAssetsPackage() != package) {
4647                        if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4648                            if (accessor != NULL) {
4649                                accessor->reportError(accessorCookie, "Resource is not public.");
4650                            }
4651                            return false;
4652                        }
4653                    }
4654                }
4655
4656                if (accessor) {
4657                    rid = Res_MAKEID(
4658                        accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4659                        Res_GETTYPE(rid), Res_GETENTRY(rid));
4660                    TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
4661                           String8(package).string(), String8(type).string(),
4662                           String8(name).string(), rid));
4663                }
4664
4665                uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4666                if (packageId != APP_PACKAGE_ID && packageId != SYS_PACKAGE_ID) {
4667                    outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4668                }
4669                outValue->data = rid;
4670                return true;
4671            }
4672
4673            if (accessor) {
4674                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
4675                                                                       createIfNotFound);
4676                if (rid != 0) {
4677                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
4678                           String8(package).string(), String8(type).string(),
4679                           String8(name).string(), rid));
4680                    uint32_t packageId = Res_GETPACKAGE(rid) + 1;
4681                    if (packageId == 0x00) {
4682                        outValue->data = rid;
4683                        outValue->dataType = Res_value::TYPE_DYNAMIC_REFERENCE;
4684                        return true;
4685                    } else if (packageId == APP_PACKAGE_ID || packageId == SYS_PACKAGE_ID) {
4686                        // We accept packageId's generated as 0x01 in order to support
4687                        // building the android system resources
4688                        outValue->data = rid;
4689                        return true;
4690                    }
4691                }
4692            }
4693        }
4694
4695        if (accessor != NULL) {
4696            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4697        }
4698        return false;
4699    }
4700
4701    // if we got to here, and localization is required and it's not a reference,
4702    // complain and bail.
4703    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
4704        if (localizationSetting) {
4705            if (accessor != NULL) {
4706                accessor->reportError(accessorCookie, "This attribute must be localized.");
4707            }
4708        }
4709    }
4710
4711    if (*s == '#') {
4712        // It's a color!  Convert to an integer of the form 0xaarrggbb.
4713        uint32_t color = 0;
4714        bool error = false;
4715        if (len == 4) {
4716            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
4717            color |= 0xFF000000;
4718            color |= get_hex(s[1], &error) << 20;
4719            color |= get_hex(s[1], &error) << 16;
4720            color |= get_hex(s[2], &error) << 12;
4721            color |= get_hex(s[2], &error) << 8;
4722            color |= get_hex(s[3], &error) << 4;
4723            color |= get_hex(s[3], &error);
4724        } else if (len == 5) {
4725            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
4726            color |= get_hex(s[1], &error) << 28;
4727            color |= get_hex(s[1], &error) << 24;
4728            color |= get_hex(s[2], &error) << 20;
4729            color |= get_hex(s[2], &error) << 16;
4730            color |= get_hex(s[3], &error) << 12;
4731            color |= get_hex(s[3], &error) << 8;
4732            color |= get_hex(s[4], &error) << 4;
4733            color |= get_hex(s[4], &error);
4734        } else if (len == 7) {
4735            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
4736            color |= 0xFF000000;
4737            color |= get_hex(s[1], &error) << 20;
4738            color |= get_hex(s[2], &error) << 16;
4739            color |= get_hex(s[3], &error) << 12;
4740            color |= get_hex(s[4], &error) << 8;
4741            color |= get_hex(s[5], &error) << 4;
4742            color |= get_hex(s[6], &error);
4743        } else if (len == 9) {
4744            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
4745            color |= get_hex(s[1], &error) << 28;
4746            color |= get_hex(s[2], &error) << 24;
4747            color |= get_hex(s[3], &error) << 20;
4748            color |= get_hex(s[4], &error) << 16;
4749            color |= get_hex(s[5], &error) << 12;
4750            color |= get_hex(s[6], &error) << 8;
4751            color |= get_hex(s[7], &error) << 4;
4752            color |= get_hex(s[8], &error);
4753        } else {
4754            error = true;
4755        }
4756        if (!error) {
4757            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
4758                if (!canStringCoerce) {
4759                    if (accessor != NULL) {
4760                        accessor->reportError(accessorCookie,
4761                                "Color types not allowed");
4762                    }
4763                    return false;
4764                }
4765            } else {
4766                outValue->data = color;
4767                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
4768                return true;
4769            }
4770        } else {
4771            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
4772                if (accessor != NULL) {
4773                    accessor->reportError(accessorCookie, "Color value not valid --"
4774                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
4775                }
4776                #if 0
4777                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
4778                        "Resource File", //(const char*)in->getPrintableSource(),
4779                        String8(*curTag).string(),
4780                        String8(s, len).string());
4781                #endif
4782                return false;
4783            }
4784        }
4785    }
4786
4787    if (*s == '?') {
4788        outValue->dataType = outValue->TYPE_ATTRIBUTE;
4789
4790        // Note: we don't check attrType here because the reference can
4791        // be to any other type; we just need to count on the client making
4792        // sure the referenced type is correct.
4793
4794        //printf("Looking up attr: %s\n", String8(s, len).string());
4795
4796        static const String16 attr16("attr");
4797        String16 package, type, name;
4798        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
4799                               &attr16, defPackage, &errorMsg)) {
4800            if (accessor != NULL) {
4801                accessor->reportError(accessorCookie, errorMsg);
4802            }
4803            return false;
4804        }
4805
4806        //printf("Pkg: %s, Type: %s, Name: %s\n",
4807        //       String8(package).string(), String8(type).string(),
4808        //       String8(name).string());
4809        uint32_t specFlags = 0;
4810        uint32_t rid =
4811            identifierForName(name.string(), name.size(),
4812                              type.string(), type.size(),
4813                              package.string(), package.size(), &specFlags);
4814        if (rid != 0) {
4815            if (enforcePrivate) {
4816                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
4817                    if (accessor != NULL) {
4818                        accessor->reportError(accessorCookie, "Attribute is not public.");
4819                    }
4820                    return false;
4821                }
4822            }
4823            if (!accessor) {
4824                outValue->data = rid;
4825                return true;
4826            }
4827            rid = Res_MAKEID(
4828                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
4829                Res_GETTYPE(rid), Res_GETENTRY(rid));
4830            //printf("Incl %s:%s/%s: 0x%08x\n",
4831            //       String8(package).string(), String8(type).string(),
4832            //       String8(name).string(), rid);
4833            outValue->data = rid;
4834            return true;
4835        }
4836
4837        if (accessor) {
4838            uint32_t rid = accessor->getCustomResource(package, type, name);
4839            if (rid != 0) {
4840                //printf("Mine %s:%s/%s: 0x%08x\n",
4841                //       String8(package).string(), String8(type).string(),
4842                //       String8(name).string(), rid);
4843                outValue->data = rid;
4844                return true;
4845            }
4846        }
4847
4848        if (accessor != NULL) {
4849            accessor->reportError(accessorCookie, "No resource found that matches the given name");
4850        }
4851        return false;
4852    }
4853
4854    if (stringToInt(s, len, outValue)) {
4855        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
4856            // If this type does not allow integers, but does allow floats,
4857            // fall through on this error case because the float type should
4858            // be able to accept any integer value.
4859            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
4860                if (accessor != NULL) {
4861                    accessor->reportError(accessorCookie, "Integer types not allowed");
4862                }
4863                return false;
4864            }
4865        } else {
4866            if (((int32_t)outValue->data) < ((int32_t)attrMin)
4867                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
4868                if (accessor != NULL) {
4869                    accessor->reportError(accessorCookie, "Integer value out of range");
4870                }
4871                return false;
4872            }
4873            return true;
4874        }
4875    }
4876
4877    if (stringToFloat(s, len, outValue)) {
4878        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
4879            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
4880                return true;
4881            }
4882            if (!canStringCoerce) {
4883                if (accessor != NULL) {
4884                    accessor->reportError(accessorCookie, "Dimension types not allowed");
4885                }
4886                return false;
4887            }
4888        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
4889            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
4890                return true;
4891            }
4892            if (!canStringCoerce) {
4893                if (accessor != NULL) {
4894                    accessor->reportError(accessorCookie, "Fraction types not allowed");
4895                }
4896                return false;
4897            }
4898        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
4899            if (!canStringCoerce) {
4900                if (accessor != NULL) {
4901                    accessor->reportError(accessorCookie, "Float types not allowed");
4902                }
4903                return false;
4904            }
4905        } else {
4906            return true;
4907        }
4908    }
4909
4910    if (len == 4) {
4911        if ((s[0] == 't' || s[0] == 'T') &&
4912            (s[1] == 'r' || s[1] == 'R') &&
4913            (s[2] == 'u' || s[2] == 'U') &&
4914            (s[3] == 'e' || s[3] == 'E')) {
4915            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4916                if (!canStringCoerce) {
4917                    if (accessor != NULL) {
4918                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4919                    }
4920                    return false;
4921                }
4922            } else {
4923                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4924                outValue->data = (uint32_t)-1;
4925                return true;
4926            }
4927        }
4928    }
4929
4930    if (len == 5) {
4931        if ((s[0] == 'f' || s[0] == 'F') &&
4932            (s[1] == 'a' || s[1] == 'A') &&
4933            (s[2] == 'l' || s[2] == 'L') &&
4934            (s[3] == 's' || s[3] == 'S') &&
4935            (s[4] == 'e' || s[4] == 'E')) {
4936            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
4937                if (!canStringCoerce) {
4938                    if (accessor != NULL) {
4939                        accessor->reportError(accessorCookie, "Boolean types not allowed");
4940                    }
4941                    return false;
4942                }
4943            } else {
4944                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
4945                outValue->data = 0;
4946                return true;
4947            }
4948        }
4949    }
4950
4951    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
4952        const ssize_t p = getResourcePackageIndex(attrID);
4953        const bag_entry* bag;
4954        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4955        //printf("Got %d for enum\n", cnt);
4956        if (cnt >= 0) {
4957            resource_name rname;
4958            while (cnt > 0) {
4959                if (!Res_INTERNALID(bag->map.name.ident)) {
4960                    //printf("Trying attr #%08x\n", bag->map.name.ident);
4961                    if (getResourceName(bag->map.name.ident, false, &rname)) {
4962                        #if 0
4963                        printf("Matching %s against %s (0x%08x)\n",
4964                               String8(s, len).string(),
4965                               String8(rname.name, rname.nameLen).string(),
4966                               bag->map.name.ident);
4967                        #endif
4968                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
4969                            outValue->dataType = bag->map.value.dataType;
4970                            outValue->data = bag->map.value.data;
4971                            unlockBag(bag);
4972                            return true;
4973                        }
4974                    }
4975
4976                }
4977                bag++;
4978                cnt--;
4979            }
4980            unlockBag(bag);
4981        }
4982
4983        if (fromAccessor) {
4984            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
4985                return true;
4986            }
4987        }
4988    }
4989
4990    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
4991        const ssize_t p = getResourcePackageIndex(attrID);
4992        const bag_entry* bag;
4993        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
4994        //printf("Got %d for flags\n", cnt);
4995        if (cnt >= 0) {
4996            bool failed = false;
4997            resource_name rname;
4998            outValue->dataType = Res_value::TYPE_INT_HEX;
4999            outValue->data = 0;
5000            const char16_t* end = s + len;
5001            const char16_t* pos = s;
5002            while (pos < end && !failed) {
5003                const char16_t* start = pos;
5004                pos++;
5005                while (pos < end && *pos != '|') {
5006                    pos++;
5007                }
5008                //printf("Looking for: %s\n", String8(start, pos-start).string());
5009                const bag_entry* bagi = bag;
5010                ssize_t i;
5011                for (i=0; i<cnt; i++, bagi++) {
5012                    if (!Res_INTERNALID(bagi->map.name.ident)) {
5013                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
5014                        if (getResourceName(bagi->map.name.ident, false, &rname)) {
5015                            #if 0
5016                            printf("Matching %s against %s (0x%08x)\n",
5017                                   String8(start,pos-start).string(),
5018                                   String8(rname.name, rname.nameLen).string(),
5019                                   bagi->map.name.ident);
5020                            #endif
5021                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
5022                                outValue->data |= bagi->map.value.data;
5023                                break;
5024                            }
5025                        }
5026                    }
5027                }
5028                if (i >= cnt) {
5029                    // Didn't find this flag identifier.
5030                    failed = true;
5031                }
5032                if (pos < end) {
5033                    pos++;
5034                }
5035            }
5036            unlockBag(bag);
5037            if (!failed) {
5038                //printf("Final flag value: 0x%lx\n", outValue->data);
5039                return true;
5040            }
5041        }
5042
5043
5044        if (fromAccessor) {
5045            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
5046                //printf("Final flag value: 0x%lx\n", outValue->data);
5047                return true;
5048            }
5049        }
5050    }
5051
5052    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
5053        if (accessor != NULL) {
5054            accessor->reportError(accessorCookie, "String types not allowed");
5055        }
5056        return false;
5057    }
5058
5059    // Generic string handling...
5060    outValue->dataType = outValue->TYPE_STRING;
5061    if (outString) {
5062        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
5063        if (accessor != NULL) {
5064            accessor->reportError(accessorCookie, errorMsg);
5065        }
5066        return failed;
5067    }
5068
5069    return true;
5070}
5071
5072bool ResTable::collectString(String16* outString,
5073                             const char16_t* s, size_t len,
5074                             bool preserveSpaces,
5075                             const char** outErrorMsg,
5076                             bool append)
5077{
5078    String16 tmp;
5079
5080    char quoted = 0;
5081    const char16_t* p = s;
5082    while (p < (s+len)) {
5083        while (p < (s+len)) {
5084            const char16_t c = *p;
5085            if (c == '\\') {
5086                break;
5087            }
5088            if (!preserveSpaces) {
5089                if (quoted == 0 && isspace16(c)
5090                    && (c != ' ' || isspace16(*(p+1)))) {
5091                    break;
5092                }
5093                if (c == '"' && (quoted == 0 || quoted == '"')) {
5094                    break;
5095                }
5096                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
5097                    /*
5098                     * In practice, when people write ' instead of \'
5099                     * in a string, they are doing it by accident
5100                     * instead of really meaning to use ' as a quoting
5101                     * character.  Warn them so they don't lose it.
5102                     */
5103                    if (outErrorMsg) {
5104                        *outErrorMsg = "Apostrophe not preceded by \\";
5105                    }
5106                    return false;
5107                }
5108            }
5109            p++;
5110        }
5111        if (p < (s+len)) {
5112            if (p > s) {
5113                tmp.append(String16(s, p-s));
5114            }
5115            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
5116                if (quoted == 0) {
5117                    quoted = *p;
5118                } else {
5119                    quoted = 0;
5120                }
5121                p++;
5122            } else if (!preserveSpaces && isspace16(*p)) {
5123                // Space outside of a quote -- consume all spaces and
5124                // leave a single plain space char.
5125                tmp.append(String16(" "));
5126                p++;
5127                while (p < (s+len) && isspace16(*p)) {
5128                    p++;
5129                }
5130            } else if (*p == '\\') {
5131                p++;
5132                if (p < (s+len)) {
5133                    switch (*p) {
5134                    case 't':
5135                        tmp.append(String16("\t"));
5136                        break;
5137                    case 'n':
5138                        tmp.append(String16("\n"));
5139                        break;
5140                    case '#':
5141                        tmp.append(String16("#"));
5142                        break;
5143                    case '@':
5144                        tmp.append(String16("@"));
5145                        break;
5146                    case '?':
5147                        tmp.append(String16("?"));
5148                        break;
5149                    case '"':
5150                        tmp.append(String16("\""));
5151                        break;
5152                    case '\'':
5153                        tmp.append(String16("'"));
5154                        break;
5155                    case '\\':
5156                        tmp.append(String16("\\"));
5157                        break;
5158                    case 'u':
5159                    {
5160                        char16_t chr = 0;
5161                        int i = 0;
5162                        while (i < 4 && p[1] != 0) {
5163                            p++;
5164                            i++;
5165                            int c;
5166                            if (*p >= '0' && *p <= '9') {
5167                                c = *p - '0';
5168                            } else if (*p >= 'a' && *p <= 'f') {
5169                                c = *p - 'a' + 10;
5170                            } else if (*p >= 'A' && *p <= 'F') {
5171                                c = *p - 'A' + 10;
5172                            } else {
5173                                if (outErrorMsg) {
5174                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
5175                                }
5176                                return false;
5177                            }
5178                            chr = (chr<<4) | c;
5179                        }
5180                        tmp.append(String16(&chr, 1));
5181                    } break;
5182                    default:
5183                        // ignore unknown escape chars.
5184                        break;
5185                    }
5186                    p++;
5187                }
5188            }
5189            len -= (p-s);
5190            s = p;
5191        }
5192    }
5193
5194    if (tmp.size() != 0) {
5195        if (len > 0) {
5196            tmp.append(String16(s, len));
5197        }
5198        if (append) {
5199            outString->append(tmp);
5200        } else {
5201            outString->setTo(tmp);
5202        }
5203    } else {
5204        if (append) {
5205            outString->append(String16(s, len));
5206        } else {
5207            outString->setTo(s, len);
5208        }
5209    }
5210
5211    return true;
5212}
5213
5214size_t ResTable::getBasePackageCount() const
5215{
5216    if (mError != NO_ERROR) {
5217        return 0;
5218    }
5219    return mPackageGroups.size();
5220}
5221
5222const String16 ResTable::getBasePackageName(size_t idx) const
5223{
5224    if (mError != NO_ERROR) {
5225        return String16();
5226    }
5227    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5228                 "Requested package index %d past package count %d",
5229                 (int)idx, (int)mPackageGroups.size());
5230    return mPackageGroups[idx]->name;
5231}
5232
5233uint32_t ResTable::getBasePackageId(size_t idx) const
5234{
5235    if (mError != NO_ERROR) {
5236        return 0;
5237    }
5238    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5239                 "Requested package index %d past package count %d",
5240                 (int)idx, (int)mPackageGroups.size());
5241    return mPackageGroups[idx]->id;
5242}
5243
5244uint32_t ResTable::getLastTypeIdForPackage(size_t idx) const
5245{
5246    if (mError != NO_ERROR) {
5247        return 0;
5248    }
5249    LOG_FATAL_IF(idx >= mPackageGroups.size(),
5250            "Requested package index %d past package count %d",
5251            (int)idx, (int)mPackageGroups.size());
5252    const PackageGroup* const group = mPackageGroups[idx];
5253    return group->largestTypeId;
5254}
5255
5256size_t ResTable::getTableCount() const
5257{
5258    return mHeaders.size();
5259}
5260
5261const ResStringPool* ResTable::getTableStringBlock(size_t index) const
5262{
5263    return &mHeaders[index]->values;
5264}
5265
5266int32_t ResTable::getTableCookie(size_t index) const
5267{
5268    return mHeaders[index]->cookie;
5269}
5270
5271const DynamicRefTable* ResTable::getDynamicRefTableForCookie(int32_t cookie) const
5272{
5273    const size_t N = mPackageGroups.size();
5274    for (size_t i = 0; i < N; i++) {
5275        const PackageGroup* pg = mPackageGroups[i];
5276        size_t M = pg->packages.size();
5277        for (size_t j = 0; j < M; j++) {
5278            if (pg->packages[j]->header->cookie == cookie) {
5279                return &pg->dynamicRefTable;
5280            }
5281        }
5282    }
5283    return NULL;
5284}
5285
5286void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
5287{
5288    const size_t packageCount = mPackageGroups.size();
5289    for (size_t i = 0; i < packageCount; i++) {
5290        const PackageGroup* packageGroup = mPackageGroups[i];
5291        const size_t typeCount = packageGroup->types.size();
5292        for (size_t j = 0; j < typeCount; j++) {
5293            const TypeList& typeList = packageGroup->types[j];
5294            const size_t numTypes = typeList.size();
5295            for (size_t k = 0; k < numTypes; k++) {
5296                const Type* type = typeList[k];
5297                const size_t numConfigs = type->configs.size();
5298                for (size_t m = 0; m < numConfigs; m++) {
5299                    const ResTable_type* config = type->configs[m];
5300                    ResTable_config cfg;
5301                    memset(&cfg, 0, sizeof(ResTable_config));
5302                    cfg.copyFromDtoH(config->config);
5303                    // only insert unique
5304                    const size_t N = configs->size();
5305                    size_t n;
5306                    for (n = 0; n < N; n++) {
5307                        if (0 == (*configs)[n].compare(cfg)) {
5308                            break;
5309                        }
5310                    }
5311                    // if we didn't find it
5312                    if (n == N) {
5313                        configs->add(cfg);
5314                    }
5315                }
5316            }
5317        }
5318    }
5319}
5320
5321void ResTable::getLocales(Vector<String8>* locales) const
5322{
5323    Vector<ResTable_config> configs;
5324    ALOGV("calling getConfigurations");
5325    getConfigurations(&configs);
5326    ALOGV("called getConfigurations size=%d", (int)configs.size());
5327    const size_t I = configs.size();
5328
5329    char locale[RESTABLE_MAX_LOCALE_LEN];
5330    for (size_t i=0; i<I; i++) {
5331        configs[i].getBcp47Locale(locale);
5332        const size_t J = locales->size();
5333        size_t j;
5334        for (j=0; j<J; j++) {
5335            if (0 == strcmp(locale, (*locales)[j].string())) {
5336                break;
5337            }
5338        }
5339        if (j == J) {
5340            locales->add(String8(locale));
5341        }
5342    }
5343}
5344
5345StringPoolRef::StringPoolRef(const ResStringPool* pool, uint32_t index)
5346    : mPool(pool), mIndex(index) {}
5347
5348StringPoolRef::StringPoolRef()
5349    : mPool(NULL), mIndex(0) {}
5350
5351const char* StringPoolRef::string8(size_t* outLen) const {
5352    if (mPool != NULL) {
5353        return mPool->string8At(mIndex, outLen);
5354    }
5355    if (outLen != NULL) {
5356        *outLen = 0;
5357    }
5358    return NULL;
5359}
5360
5361const char16_t* StringPoolRef::string16(size_t* outLen) const {
5362    if (mPool != NULL) {
5363        return mPool->stringAt(mIndex, outLen);
5364    }
5365    if (outLen != NULL) {
5366        *outLen = 0;
5367    }
5368    return NULL;
5369}
5370
5371status_t ResTable::getEntry(
5372        const PackageGroup* packageGroup, int typeIndex, int entryIndex,
5373        const ResTable_config* config,
5374        Entry* outEntry) const
5375{
5376    const TypeList& typeList = packageGroup->types[typeIndex];
5377    if (typeList.isEmpty()) {
5378        ALOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
5379        return BAD_TYPE;
5380    }
5381
5382    const ResTable_type* bestType = NULL;
5383    uint32_t bestOffset = ResTable_type::NO_ENTRY;
5384    const Package* bestPackage = NULL;
5385    uint32_t specFlags = 0;
5386    uint8_t actualTypeIndex = typeIndex;
5387    ResTable_config bestConfig;
5388    memset(&bestConfig, 0, sizeof(bestConfig));
5389
5390    // Iterate over the Types of each package.
5391    const size_t typeCount = typeList.size();
5392    for (size_t i = 0; i < typeCount; i++) {
5393        const Type* const typeSpec = typeList[i];
5394
5395        int realEntryIndex = entryIndex;
5396        int realTypeIndex = typeIndex;
5397        bool currentTypeIsOverlay = false;
5398
5399        // Runtime overlay packages provide a mapping of app resource
5400        // ID to package resource ID.
5401        if (typeSpec->idmapEntries.hasEntries()) {
5402            uint16_t overlayEntryIndex;
5403            if (typeSpec->idmapEntries.lookup(entryIndex, &overlayEntryIndex) != NO_ERROR) {
5404                // No such mapping exists
5405                continue;
5406            }
5407            realEntryIndex = overlayEntryIndex;
5408            realTypeIndex = typeSpec->idmapEntries.overlayTypeId() - 1;
5409            currentTypeIsOverlay = true;
5410        }
5411
5412        if (static_cast<size_t>(realEntryIndex) >= typeSpec->entryCount) {
5413            ALOGW("For resource 0x%08x, entry index(%d) is beyond type entryCount(%d)",
5414                    Res_MAKEID(packageGroup->id - 1, typeIndex, entryIndex),
5415                    entryIndex, static_cast<int>(typeSpec->entryCount));
5416            // We should normally abort here, but some legacy apps declare
5417            // resources in the 'android' package (old bug in AAPT).
5418            continue;
5419        }
5420
5421        // Aggregate all the flags for each package that defines this entry.
5422        if (typeSpec->typeSpecFlags != NULL) {
5423            specFlags |= dtohl(typeSpec->typeSpecFlags[realEntryIndex]);
5424        } else {
5425            specFlags = -1;
5426        }
5427
5428        const size_t numConfigs = typeSpec->configs.size();
5429        for (size_t c = 0; c < numConfigs; c++) {
5430            const ResTable_type* const thisType = typeSpec->configs[c];
5431            if (thisType == NULL) {
5432                continue;
5433            }
5434
5435            ResTable_config thisConfig;
5436            thisConfig.copyFromDtoH(thisType->config);
5437
5438            // Check to make sure this one is valid for the current parameters.
5439            if (config != NULL && !thisConfig.match(*config)) {
5440                continue;
5441            }
5442
5443            // Check if there is the desired entry in this type.
5444            const uint8_t* const end = reinterpret_cast<const uint8_t*>(thisType)
5445                    + dtohl(thisType->header.size);
5446            const uint32_t* const eindex = reinterpret_cast<const uint32_t*>(
5447                    reinterpret_cast<const uint8_t*>(thisType) + dtohs(thisType->header.headerSize));
5448
5449            uint32_t thisOffset = dtohl(eindex[realEntryIndex]);
5450            if (thisOffset == ResTable_type::NO_ENTRY) {
5451                // There is no entry for this index and configuration.
5452                continue;
5453            }
5454
5455            if (bestType != NULL) {
5456                // Check if this one is less specific than the last found.  If so,
5457                // we will skip it.  We check starting with things we most care
5458                // about to those we least care about.
5459                if (!thisConfig.isBetterThan(bestConfig, config)) {
5460                    if (!currentTypeIsOverlay || thisConfig.compare(bestConfig) != 0) {
5461                        continue;
5462                    }
5463                }
5464            }
5465
5466            bestType = thisType;
5467            bestOffset = thisOffset;
5468            bestConfig = thisConfig;
5469            bestPackage = typeSpec->package;
5470            actualTypeIndex = realTypeIndex;
5471
5472            // If no config was specified, any type will do, so skip
5473            if (config == NULL) {
5474                break;
5475            }
5476        }
5477    }
5478
5479    if (bestType == NULL) {
5480        return BAD_INDEX;
5481    }
5482
5483    bestOffset += dtohl(bestType->entriesStart);
5484
5485    if (bestOffset > (dtohl(bestType->header.size)-sizeof(ResTable_entry))) {
5486        ALOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
5487                bestOffset, dtohl(bestType->header.size));
5488        return BAD_TYPE;
5489    }
5490    if ((bestOffset & 0x3) != 0) {
5491        ALOGW("ResTable_entry at 0x%x is not on an integer boundary", bestOffset);
5492        return BAD_TYPE;
5493    }
5494
5495    const ResTable_entry* const entry = reinterpret_cast<const ResTable_entry*>(
5496            reinterpret_cast<const uint8_t*>(bestType) + bestOffset);
5497    if (dtohs(entry->size) < sizeof(*entry)) {
5498        ALOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
5499        return BAD_TYPE;
5500    }
5501
5502    if (outEntry != NULL) {
5503        outEntry->entry = entry;
5504        outEntry->config = bestConfig;
5505        outEntry->type = bestType;
5506        outEntry->specFlags = specFlags;
5507        outEntry->package = bestPackage;
5508        outEntry->typeStr = StringPoolRef(&bestPackage->typeStrings, actualTypeIndex - bestPackage->typeIdOffset);
5509        outEntry->keyStr = StringPoolRef(&bestPackage->keyStrings, dtohl(entry->key.index));
5510    }
5511    return NO_ERROR;
5512}
5513
5514status_t ResTable::parsePackage(const ResTable_package* const pkg,
5515                                const Header* const header)
5516{
5517    const uint8_t* base = (const uint8_t*)pkg;
5518    status_t err = validate_chunk(&pkg->header, sizeof(*pkg) - sizeof(pkg->typeIdOffset),
5519                                  header->dataEnd, "ResTable_package");
5520    if (err != NO_ERROR) {
5521        return (mError=err);
5522    }
5523
5524    const uint32_t pkgSize = dtohl(pkg->header.size);
5525
5526    if (dtohl(pkg->typeStrings) >= pkgSize) {
5527        ALOGW("ResTable_package type strings at 0x%x are past chunk size 0x%x.",
5528             dtohl(pkg->typeStrings), pkgSize);
5529        return (mError=BAD_TYPE);
5530    }
5531    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
5532        ALOGW("ResTable_package type strings at 0x%x is not on an integer boundary.",
5533             dtohl(pkg->typeStrings));
5534        return (mError=BAD_TYPE);
5535    }
5536    if (dtohl(pkg->keyStrings) >= pkgSize) {
5537        ALOGW("ResTable_package key strings at 0x%x are past chunk size 0x%x.",
5538             dtohl(pkg->keyStrings), pkgSize);
5539        return (mError=BAD_TYPE);
5540    }
5541    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
5542        ALOGW("ResTable_package key strings at 0x%x is not on an integer boundary.",
5543             dtohl(pkg->keyStrings));
5544        return (mError=BAD_TYPE);
5545    }
5546
5547    uint32_t id = dtohl(pkg->id);
5548    KeyedVector<uint8_t, IdmapEntries> idmapEntries;
5549
5550    if (header->resourceIDMap != NULL) {
5551        uint8_t targetPackageId = 0;
5552        status_t err = parseIdmap(header->resourceIDMap, header->resourceIDMapSize, &targetPackageId, &idmapEntries);
5553        if (err != NO_ERROR) {
5554            ALOGW("Overlay is broken");
5555            return (mError=err);
5556        }
5557        id = targetPackageId;
5558    }
5559
5560    if (id >= 256) {
5561        LOG_ALWAYS_FATAL("Package id out of range");
5562        return NO_ERROR;
5563    } else if (id == 0) {
5564        // This is a library so assign an ID
5565        id = mNextPackageId++;
5566    }
5567
5568    PackageGroup* group = NULL;
5569    Package* package = new Package(this, header, pkg);
5570    if (package == NULL) {
5571        return (mError=NO_MEMORY);
5572    }
5573
5574    err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
5575                                   header->dataEnd-(base+dtohl(pkg->typeStrings)));
5576    if (err != NO_ERROR) {
5577        delete group;
5578        delete package;
5579        return (mError=err);
5580    }
5581
5582    err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
5583                                  header->dataEnd-(base+dtohl(pkg->keyStrings)));
5584    if (err != NO_ERROR) {
5585        delete group;
5586        delete package;
5587        return (mError=err);
5588    }
5589
5590    size_t idx = mPackageMap[id];
5591    if (idx == 0) {
5592        idx = mPackageGroups.size() + 1;
5593
5594        char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
5595        strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
5596        group = new PackageGroup(this, String16(tmpName), id);
5597        if (group == NULL) {
5598            delete package;
5599            return (mError=NO_MEMORY);
5600        }
5601
5602        //printf("Adding new package id %d at index %d\n", id, idx);
5603        err = mPackageGroups.add(group);
5604        if (err < NO_ERROR) {
5605            return (mError=err);
5606        }
5607
5608        mPackageMap[id] = static_cast<uint8_t>(idx);
5609
5610        // Find all packages that reference this package
5611        size_t N = mPackageGroups.size();
5612        for (size_t i = 0; i < N; i++) {
5613            mPackageGroups[i]->dynamicRefTable.addMapping(
5614                    group->name, static_cast<uint8_t>(group->id));
5615        }
5616    } else {
5617        group = mPackageGroups.itemAt(idx - 1);
5618        if (group == NULL) {
5619            return (mError=UNKNOWN_ERROR);
5620        }
5621    }
5622
5623    err = group->packages.add(package);
5624    if (err < NO_ERROR) {
5625        return (mError=err);
5626    }
5627
5628    // Iterate through all chunks.
5629    const ResChunk_header* chunk =
5630        (const ResChunk_header*)(((const uint8_t*)pkg)
5631                                 + dtohs(pkg->header.headerSize));
5632    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
5633    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
5634           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
5635        TABLE_NOISY(ALOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
5636                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
5637                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
5638        const size_t csize = dtohl(chunk->size);
5639        const uint16_t ctype = dtohs(chunk->type);
5640        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
5641            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
5642            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
5643                                 endPos, "ResTable_typeSpec");
5644            if (err != NO_ERROR) {
5645                return (mError=err);
5646            }
5647
5648            const size_t typeSpecSize = dtohl(typeSpec->header.size);
5649            const size_t newEntryCount = dtohl(typeSpec->entryCount);
5650
5651            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5652                                    (void*)(base-(const uint8_t*)chunk),
5653                                    dtohs(typeSpec->header.type),
5654                                    dtohs(typeSpec->header.headerSize),
5655                                    (void*)typeSpecSize));
5656            // look for block overrun or int overflow when multiplying by 4
5657            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
5658                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5659                    > typeSpecSize)) {
5660                ALOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
5661                        (void*)(dtohs(typeSpec->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5662                        (void*)typeSpecSize);
5663                return (mError=BAD_TYPE);
5664            }
5665
5666            if (typeSpec->id == 0) {
5667                ALOGW("ResTable_type has an id of 0.");
5668                return (mError=BAD_TYPE);
5669            }
5670
5671            if (newEntryCount > 0) {
5672                uint8_t typeIndex = typeSpec->id - 1;
5673                ssize_t idmapIndex = idmapEntries.indexOfKey(typeSpec->id);
5674                if (idmapIndex >= 0) {
5675                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5676                }
5677
5678                TypeList& typeList = group->types.editItemAt(typeIndex);
5679                if (!typeList.isEmpty()) {
5680                    const Type* existingType = typeList[0];
5681                    if (existingType->entryCount != newEntryCount && idmapIndex < 0) {
5682                        ALOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
5683                                (int) newEntryCount, (int) existingType->entryCount);
5684                        // We should normally abort here, but some legacy apps declare
5685                        // resources in the 'android' package (old bug in AAPT).
5686                    }
5687                }
5688
5689                Type* t = new Type(header, package, newEntryCount);
5690                t->typeSpec = typeSpec;
5691                t->typeSpecFlags = (const uint32_t*)(
5692                        ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
5693                if (idmapIndex >= 0) {
5694                    t->idmapEntries = idmapEntries[idmapIndex];
5695                }
5696                typeList.add(t);
5697                group->largestTypeId = max(group->largestTypeId, typeSpec->id);
5698            } else {
5699                ALOGV("Skipping empty ResTable_typeSpec for type %d", typeSpec->id);
5700            }
5701
5702        } else if (ctype == RES_TABLE_TYPE_TYPE) {
5703            const ResTable_type* type = (const ResTable_type*)(chunk);
5704            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
5705                                 endPos, "ResTable_type");
5706            if (err != NO_ERROR) {
5707                return (mError=err);
5708            }
5709
5710            const uint32_t typeSize = dtohl(type->header.size);
5711            const size_t newEntryCount = dtohl(type->entryCount);
5712
5713            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
5714                                    (void*)(base-(const uint8_t*)chunk),
5715                                    dtohs(type->header.type),
5716                                    dtohs(type->header.headerSize),
5717                                    (void*)typeSize));
5718            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*newEntryCount)
5719                    > typeSize) {
5720                ALOGW("ResTable_type entry index to %p extends beyond chunk end 0x%x.",
5721                        (void*)(dtohs(type->header.headerSize) + (sizeof(uint32_t)*newEntryCount)),
5722                        typeSize);
5723                return (mError=BAD_TYPE);
5724            }
5725
5726            if (newEntryCount != 0
5727                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
5728                ALOGW("ResTable_type entriesStart at 0x%x extends beyond chunk end 0x%x.",
5729                     dtohl(type->entriesStart), typeSize);
5730                return (mError=BAD_TYPE);
5731            }
5732
5733            if (type->id == 0) {
5734                ALOGW("ResTable_type has an id of 0.");
5735                return (mError=BAD_TYPE);
5736            }
5737
5738            if (newEntryCount > 0) {
5739                uint8_t typeIndex = type->id - 1;
5740                ssize_t idmapIndex = idmapEntries.indexOfKey(type->id);
5741                if (idmapIndex >= 0) {
5742                    typeIndex = idmapEntries[idmapIndex].targetTypeId() - 1;
5743                }
5744
5745                TypeList& typeList = group->types.editItemAt(typeIndex);
5746                if (typeList.isEmpty()) {
5747                    ALOGE("No TypeSpec for type %d", type->id);
5748                    return (mError=BAD_TYPE);
5749                }
5750
5751                Type* t = typeList.editItemAt(typeList.size() - 1);
5752                if (newEntryCount != t->entryCount) {
5753                    ALOGE("ResTable_type entry count inconsistent: given %d, previously %d",
5754                        (int)newEntryCount, (int)t->entryCount);
5755                    return (mError=BAD_TYPE);
5756                }
5757
5758                if (t->package != package) {
5759                    ALOGE("No TypeSpec for type %d", type->id);
5760                    return (mError=BAD_TYPE);
5761                }
5762
5763                t->configs.add(type);
5764
5765                TABLE_GETENTRY(
5766                    ResTable_config thisConfig;
5767                    thisConfig.copyFromDtoH(type->config);
5768                    ALOGI("Adding config to type %d: %s\n",
5769                          type->id, thisConfig.toString().string()));
5770            } else {
5771                ALOGV("Skipping empty ResTable_type for type %d", type->id);
5772            }
5773
5774        } else if (ctype == RES_TABLE_LIBRARY_TYPE) {
5775            if (group->dynamicRefTable.entries().size() == 0) {
5776                status_t err = group->dynamicRefTable.load((const ResTable_lib_header*) chunk);
5777                if (err != NO_ERROR) {
5778                    return (mError=err);
5779                }
5780
5781                // Fill in the reference table with the entries we already know about.
5782                size_t N = mPackageGroups.size();
5783                for (size_t i = 0; i < N; i++) {
5784                    group->dynamicRefTable.addMapping(mPackageGroups[i]->name, mPackageGroups[i]->id);
5785                }
5786            } else {
5787                ALOGW("Found multiple library tables, ignoring...");
5788            }
5789        } else {
5790            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
5791                                          endPos, "ResTable_package:unknown");
5792            if (err != NO_ERROR) {
5793                return (mError=err);
5794            }
5795        }
5796        chunk = (const ResChunk_header*)
5797            (((const uint8_t*)chunk) + csize);
5798    }
5799
5800    return NO_ERROR;
5801}
5802
5803DynamicRefTable::DynamicRefTable(uint8_t packageId)
5804    : mAssignedPackageId(packageId)
5805{
5806    memset(mLookupTable, 0, sizeof(mLookupTable));
5807
5808    // Reserved package ids
5809    mLookupTable[APP_PACKAGE_ID] = APP_PACKAGE_ID;
5810    mLookupTable[SYS_PACKAGE_ID] = SYS_PACKAGE_ID;
5811}
5812
5813status_t DynamicRefTable::load(const ResTable_lib_header* const header)
5814{
5815    const uint32_t entryCount = dtohl(header->count);
5816    const uint32_t sizeOfEntries = sizeof(ResTable_lib_entry) * entryCount;
5817    const uint32_t expectedSize = dtohl(header->header.size) - dtohl(header->header.headerSize);
5818    if (sizeOfEntries > expectedSize) {
5819        ALOGE("ResTable_lib_header size %u is too small to fit %u entries (x %u).",
5820                expectedSize, entryCount, (uint32_t)sizeof(ResTable_lib_entry));
5821        return UNKNOWN_ERROR;
5822    }
5823
5824    const ResTable_lib_entry* entry = (const ResTable_lib_entry*)(((uint8_t*) header) +
5825            dtohl(header->header.headerSize));
5826    for (uint32_t entryIndex = 0; entryIndex < entryCount; entryIndex++) {
5827        uint32_t packageId = dtohl(entry->packageId);
5828        char16_t tmpName[sizeof(entry->packageName) / sizeof(char16_t)];
5829        strcpy16_dtoh(tmpName, entry->packageName, sizeof(entry->packageName) / sizeof(char16_t));
5830        LIB_NOISY(ALOGV("Found lib entry %s with id %d\n", String8(tmpName).string(),
5831                dtohl(entry->packageId)));
5832        if (packageId >= 256) {
5833            ALOGE("Bad package id 0x%08x", packageId);
5834            return UNKNOWN_ERROR;
5835        }
5836        mEntries.replaceValueFor(String16(tmpName), (uint8_t) packageId);
5837        entry = entry + 1;
5838    }
5839    return NO_ERROR;
5840}
5841
5842status_t DynamicRefTable::addMapping(const String16& packageName, uint8_t packageId)
5843{
5844    ssize_t index = mEntries.indexOfKey(packageName);
5845    if (index < 0) {
5846        return UNKNOWN_ERROR;
5847    }
5848    mLookupTable[mEntries.valueAt(index)] = packageId;
5849    return NO_ERROR;
5850}
5851
5852status_t DynamicRefTable::lookupResourceId(uint32_t* resId) const {
5853    uint32_t res = *resId;
5854    size_t packageId = Res_GETPACKAGE(res) + 1;
5855
5856    if (packageId == APP_PACKAGE_ID) {
5857        // No lookup needs to be done, app package IDs are absolute.
5858        return NO_ERROR;
5859    }
5860
5861    if (packageId == 0) {
5862        // The package ID is 0x00. That means that a shared library is accessing
5863        // its own local resource, so we fix up the resource with the calling
5864        // package ID.
5865        *resId |= ((uint32_t) mAssignedPackageId) << 24;
5866        return NO_ERROR;
5867    }
5868
5869    // Do a proper lookup.
5870    uint8_t translatedId = mLookupTable[packageId];
5871    if (translatedId == 0) {
5872        ALOGE("DynamicRefTable(0x%02x): No mapping for build-time package ID 0x%02x.",
5873                (uint8_t)mAssignedPackageId, (uint8_t)packageId);
5874        for (size_t i = 0; i < 256; i++) {
5875            if (mLookupTable[i] != 0) {
5876                ALOGE("e[0x%02x] -> 0x%02x", (uint8_t)i, mLookupTable[i]);
5877            }
5878        }
5879        return UNKNOWN_ERROR;
5880    }
5881
5882    *resId = (res & 0x00ffffff) | (((uint32_t) translatedId) << 24);
5883    return NO_ERROR;
5884}
5885
5886status_t DynamicRefTable::lookupResourceValue(Res_value* value) const {
5887    if (value->dataType != Res_value::TYPE_DYNAMIC_REFERENCE) {
5888        return NO_ERROR;
5889    }
5890
5891    status_t err = lookupResourceId(&value->data);
5892    if (err != NO_ERROR) {
5893        return err;
5894    }
5895
5896    value->dataType = Res_value::TYPE_REFERENCE;
5897    return NO_ERROR;
5898}
5899
5900struct IdmapTypeMap {
5901    ssize_t overlayTypeId;
5902    size_t entryOffset;
5903    Vector<uint32_t> entryMap;
5904};
5905
5906status_t ResTable::createIdmap(const ResTable& overlay,
5907        uint32_t targetCrc, uint32_t overlayCrc,
5908        const char* targetPath, const char* overlayPath,
5909        void** outData, size_t* outSize) const
5910{
5911    // see README for details on the format of map
5912    if (mPackageGroups.size() == 0) {
5913        ALOGW("idmap: target package has no package groups, cannot create idmap\n");
5914        return UNKNOWN_ERROR;
5915    }
5916
5917    if (mPackageGroups[0]->packages.size() == 0) {
5918        ALOGW("idmap: target package has no packages in its first package group, "
5919                "cannot create idmap\n");
5920        return UNKNOWN_ERROR;
5921    }
5922
5923    KeyedVector<uint8_t, IdmapTypeMap> map;
5924
5925    // overlaid packages are assumed to contain only one package group
5926    const PackageGroup* pg = mPackageGroups[0];
5927
5928    // starting size is header
5929    *outSize = ResTable::IDMAP_HEADER_SIZE_BYTES;
5930
5931    // target package id and number of types in map
5932    *outSize += 2 * sizeof(uint16_t);
5933
5934    // overlay packages are assumed to contain only one package group
5935    const String16 overlayPackage(overlay.mPackageGroups[0]->packages[0]->package->name);
5936
5937    for (size_t typeIndex = 0; typeIndex < pg->types.size(); ++typeIndex) {
5938        const TypeList& typeList = pg->types[typeIndex];
5939        if (typeList.isEmpty()) {
5940            continue;
5941        }
5942
5943        const Type* typeConfigs = typeList[0];
5944
5945        IdmapTypeMap typeMap;
5946        typeMap.overlayTypeId = -1;
5947        typeMap.entryOffset = 0;
5948
5949        for (size_t entryIndex = 0; entryIndex < typeConfigs->entryCount; ++entryIndex) {
5950            uint32_t resID = Res_MAKEID(pg->id - 1, typeIndex, entryIndex);
5951            resource_name resName;
5952            if (!this->getResourceName(resID, false, &resName)) {
5953                if (typeMap.entryMap.isEmpty()) {
5954                    typeMap.entryOffset++;
5955                }
5956                continue;
5957            }
5958
5959            const String16 overlayType(resName.type, resName.typeLen);
5960            const String16 overlayName(resName.name, resName.nameLen);
5961            uint32_t overlayResID = overlay.identifierForName(overlayName.string(),
5962                                                              overlayName.size(),
5963                                                              overlayType.string(),
5964                                                              overlayType.size(),
5965                                                              overlayPackage.string(),
5966                                                              overlayPackage.size());
5967            if (overlayResID == 0) {
5968                if (typeMap.entryMap.isEmpty()) {
5969                    typeMap.entryOffset++;
5970                }
5971                continue;
5972            }
5973
5974            if (typeMap.overlayTypeId == -1) {
5975                typeMap.overlayTypeId = Res_GETTYPE(overlayResID) + 1;
5976            }
5977
5978            if (Res_GETTYPE(overlayResID) + 1 != static_cast<size_t>(typeMap.overlayTypeId)) {
5979                ALOGE("idmap: can't mix type ids in entry map. Resource 0x%08x maps to 0x%08x"
5980                        " but entries should map to resources of type %02x",
5981                        resID, overlayResID, typeMap.overlayTypeId);
5982                return BAD_TYPE;
5983            }
5984
5985            if (typeMap.entryOffset + typeMap.entryMap.size() < entryIndex) {
5986                // Resize to accomodate this entry and the 0's in between.
5987                if (typeMap.entryMap.resize((entryIndex - typeMap.entryOffset) + 1) < 0) {
5988                    return NO_MEMORY;
5989                }
5990                typeMap.entryMap.editTop() = Res_GETENTRY(overlayResID);
5991            } else {
5992                typeMap.entryMap.add(Res_GETENTRY(overlayResID));
5993            }
5994        }
5995
5996        if (!typeMap.entryMap.isEmpty()) {
5997            if (map.add(static_cast<uint8_t>(typeIndex), typeMap) < 0) {
5998                return NO_MEMORY;
5999            }
6000            *outSize += (4 * sizeof(uint16_t)) + (typeMap.entryMap.size() * sizeof(uint32_t));
6001        }
6002    }
6003
6004    if (map.isEmpty()) {
6005        ALOGW("idmap: no resources in overlay package present in base package");
6006        return UNKNOWN_ERROR;
6007    }
6008
6009    if ((*outData = malloc(*outSize)) == NULL) {
6010        return NO_MEMORY;
6011    }
6012
6013    uint32_t* data = (uint32_t*)*outData;
6014    *data++ = htodl(IDMAP_MAGIC);
6015    *data++ = htodl(IDMAP_CURRENT_VERSION);
6016    *data++ = htodl(targetCrc);
6017    *data++ = htodl(overlayCrc);
6018    const char* paths[] = { targetPath, overlayPath };
6019    for (int j = 0; j < 2; ++j) {
6020        char* p = (char*)data;
6021        const char* path = paths[j];
6022        const size_t I = strlen(path);
6023        if (I > 255) {
6024            ALOGV("path exceeds expected 255 characters: %s\n", path);
6025            return UNKNOWN_ERROR;
6026        }
6027        for (size_t i = 0; i < 256; ++i) {
6028            *p++ = i < I ? path[i] : '\0';
6029        }
6030        data += 256 / sizeof(uint32_t);
6031    }
6032    const size_t mapSize = map.size();
6033    uint16_t* typeData = reinterpret_cast<uint16_t*>(data);
6034    *typeData++ = htods(pg->id);
6035    *typeData++ = htods(mapSize);
6036    for (size_t i = 0; i < mapSize; ++i) {
6037        uint8_t targetTypeId = map.keyAt(i);
6038        const IdmapTypeMap& typeMap = map[i];
6039        *typeData++ = htods(targetTypeId + 1);
6040        *typeData++ = htods(typeMap.overlayTypeId);
6041        *typeData++ = htods(typeMap.entryMap.size());
6042        *typeData++ = htods(typeMap.entryOffset);
6043
6044        const size_t entryCount = typeMap.entryMap.size();
6045        uint32_t* entries = reinterpret_cast<uint32_t*>(typeData);
6046        for (size_t j = 0; j < entryCount; j++) {
6047            entries[j] = htodl(typeMap.entryMap[j]);
6048        }
6049        typeData += entryCount * 2;
6050    }
6051
6052    return NO_ERROR;
6053}
6054
6055bool ResTable::getIdmapInfo(const void* idmap, size_t sizeBytes,
6056                            uint32_t* pVersion,
6057                            uint32_t* pTargetCrc, uint32_t* pOverlayCrc,
6058                            String8* pTargetPath, String8* pOverlayPath)
6059{
6060    const uint32_t* map = (const uint32_t*)idmap;
6061    if (!assertIdmapHeader(map, sizeBytes)) {
6062        return false;
6063    }
6064    if (pVersion) {
6065        *pVersion = dtohl(map[1]);
6066    }
6067    if (pTargetCrc) {
6068        *pTargetCrc = dtohl(map[2]);
6069    }
6070    if (pOverlayCrc) {
6071        *pOverlayCrc = dtohl(map[3]);
6072    }
6073    if (pTargetPath) {
6074        pTargetPath->setTo(reinterpret_cast<const char*>(map + 4));
6075    }
6076    if (pOverlayPath) {
6077        pOverlayPath->setTo(reinterpret_cast<const char*>(map + 4 + 256 / sizeof(uint32_t)));
6078    }
6079    return true;
6080}
6081
6082
6083#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
6084
6085#define CHAR16_ARRAY_EQ(constant, var, len) \
6086        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
6087
6088static void print_complex(uint32_t complex, bool isFraction)
6089{
6090    const float MANTISSA_MULT =
6091        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
6092    const float RADIX_MULTS[] = {
6093        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
6094        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
6095    };
6096
6097    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
6098                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
6099            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
6100                            & Res_value::COMPLEX_RADIX_MASK];
6101    printf("%f", value);
6102
6103    if (!isFraction) {
6104        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6105            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
6106            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
6107            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
6108            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
6109            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
6110            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
6111            default: printf(" (unknown unit)"); break;
6112        }
6113    } else {
6114        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
6115            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
6116            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
6117            default: printf(" (unknown unit)"); break;
6118        }
6119    }
6120}
6121
6122// Normalize a string for output
6123String8 ResTable::normalizeForOutput( const char *input )
6124{
6125    String8 ret;
6126    char buff[2];
6127    buff[1] = '\0';
6128
6129    while (*input != '\0') {
6130        switch (*input) {
6131            // All interesting characters are in the ASCII zone, so we are making our own lives
6132            // easier by scanning the string one byte at a time.
6133        case '\\':
6134            ret += "\\\\";
6135            break;
6136        case '\n':
6137            ret += "\\n";
6138            break;
6139        case '"':
6140            ret += "\\\"";
6141            break;
6142        default:
6143            buff[0] = *input;
6144            ret += buff;
6145            break;
6146        }
6147
6148        input++;
6149    }
6150
6151    return ret;
6152}
6153
6154void ResTable::print_value(const Package* pkg, const Res_value& value) const
6155{
6156    if (value.dataType == Res_value::TYPE_NULL) {
6157        printf("(null)\n");
6158    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
6159        printf("(reference) 0x%08x\n", value.data);
6160    } else if (value.dataType == Res_value::TYPE_DYNAMIC_REFERENCE) {
6161        printf("(dynamic reference) 0x%08x\n", value.data);
6162    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
6163        printf("(attribute) 0x%08x\n", value.data);
6164    } else if (value.dataType == Res_value::TYPE_STRING) {
6165        size_t len;
6166        const char* str8 = pkg->header->values.string8At(
6167                value.data, &len);
6168        if (str8 != NULL) {
6169            printf("(string8) \"%s\"\n", normalizeForOutput(str8).string());
6170        } else {
6171            const char16_t* str16 = pkg->header->values.stringAt(
6172                    value.data, &len);
6173            if (str16 != NULL) {
6174                printf("(string16) \"%s\"\n",
6175                    normalizeForOutput(String8(str16, len).string()).string());
6176            } else {
6177                printf("(string) null\n");
6178            }
6179        }
6180    } else if (value.dataType == Res_value::TYPE_FLOAT) {
6181        printf("(float) %g\n", *(const float*)&value.data);
6182    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
6183        printf("(dimension) ");
6184        print_complex(value.data, false);
6185        printf("\n");
6186    } else if (value.dataType == Res_value::TYPE_FRACTION) {
6187        printf("(fraction) ");
6188        print_complex(value.data, true);
6189        printf("\n");
6190    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
6191            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
6192        printf("(color) #%08x\n", value.data);
6193    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
6194        printf("(boolean) %s\n", value.data ? "true" : "false");
6195    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
6196            || value.dataType <= Res_value::TYPE_LAST_INT) {
6197        printf("(int) 0x%08x or %d\n", value.data, value.data);
6198    } else {
6199        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
6200               (int)value.dataType, (int)value.data,
6201               (int)value.size, (int)value.res0);
6202    }
6203}
6204
6205void ResTable::print(bool inclValues) const
6206{
6207    if (mError != 0) {
6208        printf("mError=0x%x (%s)\n", mError, strerror(mError));
6209    }
6210#if 0
6211    char localeStr[RESTABLE_MAX_LOCALE_LEN];
6212    mParams.getBcp47Locale(localeStr);
6213    printf("mParams=%s,\n" localeStr);
6214#endif
6215    size_t pgCount = mPackageGroups.size();
6216    printf("Package Groups (%d)\n", (int)pgCount);
6217    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
6218        const PackageGroup* pg = mPackageGroups[pgIndex];
6219        printf("Package Group %d id=%d packageCount=%d name=%s\n",
6220                (int)pgIndex, pg->id, (int)pg->packages.size(),
6221                String8(pg->name).string());
6222
6223        size_t pkgCount = pg->packages.size();
6224        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
6225            const Package* pkg = pg->packages[pkgIndex];
6226            printf("  Package %d id=%d name=%s\n", (int)pkgIndex,
6227                    pkg->package->id, String8(String16(pkg->package->name)).string());
6228        }
6229
6230        for (size_t typeIndex=0; typeIndex < pg->types.size(); typeIndex++) {
6231            const TypeList& typeList = pg->types[typeIndex];
6232            if (typeList.isEmpty()) {
6233                //printf("    type %d NULL\n", (int)typeIndex);
6234                continue;
6235            }
6236            const Type* typeConfigs = typeList[0];
6237            const size_t NTC = typeConfigs->configs.size();
6238            printf("    type %d configCount=%d entryCount=%d\n",
6239                   (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
6240            if (typeConfigs->typeSpecFlags != NULL) {
6241                for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
6242                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6243                                | (0x00ff0000 & ((typeIndex+1)<<16))
6244                                | (0x0000ffff & (entryIndex));
6245                    // Since we are creating resID without actually
6246                    // iterating over them, we have no idea which is a
6247                    // dynamic reference. We must check.
6248                    pg->dynamicRefTable.lookupResourceId(&resID);
6249
6250                    resource_name resName;
6251                    if (this->getResourceName(resID, true, &resName)) {
6252                        String8 type8;
6253                        String8 name8;
6254                        if (resName.type8 != NULL) {
6255                            type8 = String8(resName.type8, resName.typeLen);
6256                        } else {
6257                            type8 = String8(resName.type, resName.typeLen);
6258                        }
6259                        if (resName.name8 != NULL) {
6260                            name8 = String8(resName.name8, resName.nameLen);
6261                        } else {
6262                            name8 = String8(resName.name, resName.nameLen);
6263                        }
6264                        printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
6265                            resID,
6266                            CHAR16_TO_CSTR(resName.package, resName.packageLen),
6267                            type8.string(), name8.string(),
6268                            dtohl(typeConfigs->typeSpecFlags[entryIndex]));
6269                    } else {
6270                        printf("      INVALID TYPE CONFIG FOR RESOURCE 0x%08x\n", resID);
6271                    }
6272                }
6273            }
6274            for (size_t configIndex=0; configIndex<NTC; configIndex++) {
6275                const ResTable_type* type = typeConfigs->configs[configIndex];
6276                if ((((uint64_t)type)&0x3) != 0) {
6277                    printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
6278                    continue;
6279                }
6280                String8 configStr = type->config.toString();
6281                printf("      config %s:\n", configStr.size() > 0
6282                        ? configStr.string() : "(default)");
6283                size_t entryCount = dtohl(type->entryCount);
6284                uint32_t entriesStart = dtohl(type->entriesStart);
6285                if ((entriesStart&0x3) != 0) {
6286                    printf("      NON-INTEGER ResTable_type entriesStart OFFSET: 0x%x\n", entriesStart);
6287                    continue;
6288                }
6289                uint32_t typeSize = dtohl(type->header.size);
6290                if ((typeSize&0x3) != 0) {
6291                    printf("      NON-INTEGER ResTable_type header.size: 0x%x\n", typeSize);
6292                    continue;
6293                }
6294                for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
6295
6296                    const uint8_t* const end = ((const uint8_t*)type)
6297                        + dtohl(type->header.size);
6298                    const uint32_t* const eindex = (const uint32_t*)
6299                        (((const uint8_t*)type) + dtohs(type->header.headerSize));
6300
6301                    uint32_t thisOffset = dtohl(eindex[entryIndex]);
6302                    if (thisOffset == ResTable_type::NO_ENTRY) {
6303                        continue;
6304                    }
6305
6306                    uint32_t resID = (0xff000000 & ((pg->id)<<24))
6307                                | (0x00ff0000 & ((typeIndex+1)<<16))
6308                                | (0x0000ffff & (entryIndex));
6309                    pg->dynamicRefTable.lookupResourceId(&resID);
6310                    resource_name resName;
6311                    if (this->getResourceName(resID, true, &resName)) {
6312                        String8 type8;
6313                        String8 name8;
6314                        if (resName.type8 != NULL) {
6315                            type8 = String8(resName.type8, resName.typeLen);
6316                        } else {
6317                            type8 = String8(resName.type, resName.typeLen);
6318                        }
6319                        if (resName.name8 != NULL) {
6320                            name8 = String8(resName.name8, resName.nameLen);
6321                        } else {
6322                            name8 = String8(resName.name, resName.nameLen);
6323                        }
6324                        printf("        resource 0x%08x %s:%s/%s: ", resID,
6325                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
6326                                type8.string(), name8.string());
6327                    } else {
6328                        printf("        INVALID RESOURCE 0x%08x: ", resID);
6329                    }
6330                    if ((thisOffset&0x3) != 0) {
6331                        printf("NON-INTEGER OFFSET: 0x%x\n", thisOffset);
6332                        continue;
6333                    }
6334                    if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
6335                        printf("OFFSET OUT OF BOUNDS: 0x%x+0x%x (size is 0x%x)\n",
6336                               entriesStart, thisOffset, typeSize);
6337                        continue;
6338                    }
6339
6340                    const ResTable_entry* ent = (const ResTable_entry*)
6341                        (((const uint8_t*)type) + entriesStart + thisOffset);
6342                    if (((entriesStart + thisOffset)&0x3) != 0) {
6343                        printf("NON-INTEGER ResTable_entry OFFSET: 0x%x\n",
6344                             (entriesStart + thisOffset));
6345                        continue;
6346                    }
6347
6348                    uintptr_t esize = dtohs(ent->size);
6349                    if ((esize&0x3) != 0) {
6350                        printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void *)esize);
6351                        continue;
6352                    }
6353                    if ((thisOffset+esize) > typeSize) {
6354                        printf("ResTable_entry OUT OF BOUNDS: 0x%x+0x%x+%p (size is 0x%x)\n",
6355                               entriesStart, thisOffset, (void *)esize, typeSize);
6356                        continue;
6357                    }
6358
6359                    const Res_value* valuePtr = NULL;
6360                    const ResTable_map_entry* bagPtr = NULL;
6361                    Res_value value;
6362                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
6363                        printf("<bag>");
6364                        bagPtr = (const ResTable_map_entry*)ent;
6365                    } else {
6366                        valuePtr = (const Res_value*)
6367                            (((const uint8_t*)ent) + esize);
6368                        value.copyFrom_dtoh(*valuePtr);
6369                        printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
6370                               (int)value.dataType, (int)value.data,
6371                               (int)value.size, (int)value.res0);
6372                    }
6373
6374                    if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
6375                        printf(" (PUBLIC)");
6376                    }
6377                    printf("\n");
6378
6379                    if (inclValues) {
6380                        if (valuePtr != NULL) {
6381                            printf("          ");
6382                            print_value(typeConfigs->package, value);
6383                        } else if (bagPtr != NULL) {
6384                            const int N = dtohl(bagPtr->count);
6385                            const uint8_t* baseMapPtr = (const uint8_t*)ent;
6386                            size_t mapOffset = esize;
6387                            const ResTable_map* mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6388                            const uint32_t parent = dtohl(bagPtr->parent.ident);
6389                            uint32_t resolvedParent = parent;
6390                            status_t err = pg->dynamicRefTable.lookupResourceId(&resolvedParent);
6391                            if (err != NO_ERROR) {
6392                                resolvedParent = 0;
6393                            }
6394                            printf("          Parent=0x%08x(Resolved=0x%08x), Count=%d\n",
6395                                    parent, resolvedParent, N);
6396                            for (int i=0; i<N && mapOffset < (typeSize-sizeof(ResTable_map)); i++) {
6397                                printf("          #%i (Key=0x%08x): ",
6398                                    i, dtohl(mapPtr->name.ident));
6399                                value.copyFrom_dtoh(mapPtr->value);
6400                                print_value(typeConfigs->package, value);
6401                                const size_t size = dtohs(mapPtr->value.size);
6402                                mapOffset += size + sizeof(*mapPtr)-sizeof(mapPtr->value);
6403                                mapPtr = (ResTable_map*)(baseMapPtr+mapOffset);
6404                            }
6405                        }
6406                    }
6407                }
6408            }
6409        }
6410    }
6411}
6412
6413}   // namespace android
6414