ResourceTypes.cpp revision c4db95c077f826585d20be2f3db4043c53d30cf5 
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 <utils/Atomic.h>
21#include <utils/ByteOrder.h>
22#include <utils/Debug.h>
23#include <utils/ResourceTypes.h>
24#include <utils/String16.h>
25#include <utils/String8.h>
26#include <utils/TextOutput.h>
27#include <utils/Log.h>
28
29#include <stdlib.h>
30#include <string.h>
31#include <memory.h>
32#include <ctype.h>
33#include <stdint.h>
34
35#ifndef INT32_MAX
36#define INT32_MAX ((int32_t)(2147483647))
37#endif
38
39#define POOL_NOISY(x) //x
40#define XML_NOISY(x) //x
41#define TABLE_NOISY(x) //x
42#define TABLE_GETENTRY(x) //x
43#define TABLE_SUPER_NOISY(x) //x
44#define LOAD_TABLE_NOISY(x) //x
45
46namespace android {
47
48#ifdef HAVE_WINSOCK
49#undef  nhtol
50#undef  htonl
51
52#ifdef HAVE_LITTLE_ENDIAN
53#define ntohl(x)    ( ((x) << 24) | (((x) >> 24) & 255) | (((x) << 8) & 0xff0000) | (((x) >> 8) & 0xff00) )
54#define htonl(x)    ntohl(x)
55#define ntohs(x)    ( (((x) << 8) & 0xff00) | (((x) >> 8) & 255) )
56#define htons(x)    ntohs(x)
57#else
58#define ntohl(x)    (x)
59#define htonl(x)    (x)
60#define ntohs(x)    (x)
61#define htons(x)    (x)
62#endif
63#endif
64
65static void printToLogFunc(void* cookie, const char* txt)
66{
67    LOGV("%s", txt);
68}
69
70// Standard C isspace() is only required to look at the low byte of its input, so
71// produces incorrect results for UTF-16 characters.  For safety's sake, assume that
72// any high-byte UTF-16 code point is not whitespace.
73inline int isspace16(char16_t c) {
74    return (c < 0x0080 && isspace(c));
75}
76
77// range checked; guaranteed to NUL-terminate within the stated number of available slots
78// NOTE: if this truncates the dst string due to running out of space, no attempt is
79// made to avoid splitting surrogate pairs.
80static void strcpy16_dtoh(uint16_t* dst, const uint16_t* src, size_t avail)
81{
82    uint16_t* last = dst + avail - 1;
83    while (*src && (dst < last)) {
84        char16_t s = dtohs(*src);
85        *dst++ = s;
86        src++;
87    }
88    *dst = 0;
89}
90
91static status_t validate_chunk(const ResChunk_header* chunk,
92                               size_t minSize,
93                               const uint8_t* dataEnd,
94                               const char* name)
95{
96    const uint16_t headerSize = dtohs(chunk->headerSize);
97    const uint32_t size = dtohl(chunk->size);
98
99    if (headerSize >= minSize) {
100        if (headerSize <= size) {
101            if (((headerSize|size)&0x3) == 0) {
102                if ((ssize_t)size <= (dataEnd-((const uint8_t*)chunk))) {
103                    return NO_ERROR;
104                }
105                LOGW("%s data size %p extends beyond resource end %p.",
106                     name, (void*)size,
107                     (void*)(dataEnd-((const uint8_t*)chunk)));
108                return BAD_TYPE;
109            }
110            LOGW("%s size 0x%x or headerSize 0x%x is not on an integer boundary.",
111                 name, (int)size, (int)headerSize);
112            return BAD_TYPE;
113        }
114        LOGW("%s size %p is smaller than header size %p.",
115             name, (void*)size, (void*)(int)headerSize);
116        return BAD_TYPE;
117    }
118    LOGW("%s header size %p is too small.",
119         name, (void*)(int)headerSize);
120    return BAD_TYPE;
121}
122
123inline void Res_value::copyFrom_dtoh(const Res_value& src)
124{
125    size = dtohs(src.size);
126    res0 = src.res0;
127    dataType = src.dataType;
128    data = dtohl(src.data);
129}
130
131void Res_png_9patch::deviceToFile()
132{
133    for (int i = 0; i < numXDivs; i++) {
134        xDivs[i] = htonl(xDivs[i]);
135    }
136    for (int i = 0; i < numYDivs; i++) {
137        yDivs[i] = htonl(yDivs[i]);
138    }
139    paddingLeft = htonl(paddingLeft);
140    paddingRight = htonl(paddingRight);
141    paddingTop = htonl(paddingTop);
142    paddingBottom = htonl(paddingBottom);
143    for (int i=0; i<numColors; i++) {
144        colors[i] = htonl(colors[i]);
145    }
146}
147
148void Res_png_9patch::fileToDevice()
149{
150    for (int i = 0; i < numXDivs; i++) {
151        xDivs[i] = ntohl(xDivs[i]);
152    }
153    for (int i = 0; i < numYDivs; i++) {
154        yDivs[i] = ntohl(yDivs[i]);
155    }
156    paddingLeft = ntohl(paddingLeft);
157    paddingRight = ntohl(paddingRight);
158    paddingTop = ntohl(paddingTop);
159    paddingBottom = ntohl(paddingBottom);
160    for (int i=0; i<numColors; i++) {
161        colors[i] = ntohl(colors[i]);
162    }
163}
164
165size_t Res_png_9patch::serializedSize()
166{
167    // The size of this struct is 32 bytes on the 32-bit target system
168    // 4 * int8_t
169    // 4 * int32_t
170    // 3 * pointer
171    return 32
172            + numXDivs * sizeof(int32_t)
173            + numYDivs * sizeof(int32_t)
174            + numColors * sizeof(uint32_t);
175}
176
177void* Res_png_9patch::serialize()
178{
179    // Use calloc since we're going to leave a few holes in the data
180    // and want this to run cleanly under valgrind
181    void* newData = calloc(1, serializedSize());
182    serialize(newData);
183    return newData;
184}
185
186void Res_png_9patch::serialize(void * outData)
187{
188    char* data = (char*) outData;
189    memmove(data, &wasDeserialized, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
190    memmove(data + 12, &paddingLeft, 16);   // copy paddingXXXX
191    data += 32;
192
193    memmove(data, this->xDivs, numXDivs * sizeof(int32_t));
194    data +=  numXDivs * sizeof(int32_t);
195    memmove(data, this->yDivs, numYDivs * sizeof(int32_t));
196    data +=  numYDivs * sizeof(int32_t);
197    memmove(data, this->colors, numColors * sizeof(uint32_t));
198}
199
200static void deserializeInternal(const void* inData, Res_png_9patch* outData) {
201    char* patch = (char*) inData;
202    if (inData != outData) {
203        memmove(&outData->wasDeserialized, patch, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
204        memmove(&outData->paddingLeft, patch + 12, 4);     // copy  wasDeserialized, numXDivs, numYDivs, numColors
205    }
206    outData->wasDeserialized = true;
207    char* data = (char*)outData;
208    data +=  sizeof(Res_png_9patch);
209    outData->xDivs = (int32_t*) data;
210    data +=  outData->numXDivs * sizeof(int32_t);
211    outData->yDivs = (int32_t*) data;
212    data +=  outData->numYDivs * sizeof(int32_t);
213    outData->colors = (uint32_t*) data;
214}
215
216Res_png_9patch* Res_png_9patch::deserialize(const void* inData)
217{
218    if (sizeof(void*) != sizeof(int32_t)) {
219        LOGE("Cannot deserialize on non 32-bit system\n");
220        return NULL;
221    }
222    deserializeInternal(inData, (Res_png_9patch*) inData);
223    return (Res_png_9patch*) inData;
224}
225
226// --------------------------------------------------------------------
227// --------------------------------------------------------------------
228// --------------------------------------------------------------------
229
230ResStringPool::ResStringPool()
231    : mError(NO_INIT), mOwnedData(NULL)
232{
233}
234
235ResStringPool::ResStringPool(const void* data, size_t size, bool copyData)
236    : mError(NO_INIT), mOwnedData(NULL)
237{
238    setTo(data, size, copyData);
239}
240
241ResStringPool::~ResStringPool()
242{
243    uninit();
244}
245
246status_t ResStringPool::setTo(const void* data, size_t size, bool copyData)
247{
248    if (!data || !size) {
249        return (mError=BAD_TYPE);
250    }
251
252    uninit();
253
254    const bool notDeviceEndian = htods(0xf0) != 0xf0;
255
256    if (copyData || notDeviceEndian) {
257        mOwnedData = malloc(size);
258        if (mOwnedData == NULL) {
259            return (mError=NO_MEMORY);
260        }
261        memcpy(mOwnedData, data, size);
262        data = mOwnedData;
263    }
264
265    mHeader = (const ResStringPool_header*)data;
266
267    if (notDeviceEndian) {
268        ResStringPool_header* h = const_cast<ResStringPool_header*>(mHeader);
269        h->header.headerSize = dtohs(mHeader->header.headerSize);
270        h->header.type = dtohs(mHeader->header.type);
271        h->header.size = dtohl(mHeader->header.size);
272        h->stringCount = dtohl(mHeader->stringCount);
273        h->styleCount = dtohl(mHeader->styleCount);
274        h->flags = dtohl(mHeader->flags);
275        h->stringsStart = dtohl(mHeader->stringsStart);
276        h->stylesStart = dtohl(mHeader->stylesStart);
277    }
278
279    if (mHeader->header.headerSize > mHeader->header.size
280            || mHeader->header.size > size) {
281        LOGW("Bad string block: header size %d or total size %d is larger than data size %d\n",
282                (int)mHeader->header.headerSize, (int)mHeader->header.size, (int)size);
283        return (mError=BAD_TYPE);
284    }
285    mSize = mHeader->header.size;
286    mEntries = (const uint32_t*)
287        (((const uint8_t*)data)+mHeader->header.headerSize);
288
289    if (mHeader->stringCount > 0) {
290        if ((mHeader->stringCount*sizeof(uint32_t) < mHeader->stringCount)  // uint32 overflow?
291            || (mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t)))
292                > size) {
293            LOGW("Bad string block: entry of %d items extends past data size %d\n",
294                    (int)(mHeader->header.headerSize+(mHeader->stringCount*sizeof(uint32_t))),
295                    (int)size);
296            return (mError=BAD_TYPE);
297        }
298        mStrings = (const char16_t*)
299            (((const uint8_t*)data)+mHeader->stringsStart);
300        if (mHeader->stringsStart >= (mHeader->header.size-sizeof(uint16_t))) {
301            LOGW("Bad string block: string pool starts at %d, after total size %d\n",
302                    (int)mHeader->stringsStart, (int)mHeader->header.size);
303            return (mError=BAD_TYPE);
304        }
305        if (mHeader->styleCount == 0) {
306            mStringPoolSize =
307                (mHeader->header.size-mHeader->stringsStart)/sizeof(uint16_t);
308        } else {
309            // check invariant: styles follow the strings
310            if (mHeader->stylesStart <= mHeader->stringsStart) {
311                LOGW("Bad style block: style block starts at %d, before strings at %d\n",
312                    (int)mHeader->stylesStart, (int)mHeader->stringsStart);
313                return (mError=BAD_TYPE);
314            }
315            mStringPoolSize =
316                (mHeader->stylesStart-mHeader->stringsStart)/sizeof(uint16_t);
317        }
318
319        // check invariant: stringCount > 0 requires a string pool to exist
320        if (mStringPoolSize == 0) {
321            LOGW("Bad string block: stringCount is %d but pool size is 0\n", (int)mHeader->stringCount);
322            return (mError=BAD_TYPE);
323        }
324
325        if (notDeviceEndian) {
326            size_t i;
327            uint32_t* e = const_cast<uint32_t*>(mEntries);
328            for (i=0; i<mHeader->stringCount; i++) {
329                e[i] = dtohl(mEntries[i]);
330            }
331            char16_t* s = const_cast<char16_t*>(mStrings);
332            for (i=0; i<mStringPoolSize; i++) {
333                s[i] = dtohs(mStrings[i]);
334            }
335        }
336
337        if (mStrings[mStringPoolSize-1] != 0) {
338            LOGW("Bad string block: last string is not 0-terminated\n");
339            return (mError=BAD_TYPE);
340        }
341    } else {
342        mStrings = NULL;
343        mStringPoolSize = 0;
344    }
345
346    if (mHeader->styleCount > 0) {
347        mEntryStyles = mEntries + mHeader->stringCount;
348        // invariant: integer overflow in calculating mEntryStyles
349        if (mEntryStyles < mEntries) {
350            LOGW("Bad string block: integer overflow finding styles\n");
351            return (mError=BAD_TYPE);
352        }
353
354        if (((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader) > (int)size) {
355            LOGW("Bad string block: entry of %d styles extends past data size %d\n",
356                    (int)((const uint8_t*)mEntryStyles-(const uint8_t*)mHeader),
357                    (int)size);
358            return (mError=BAD_TYPE);
359        }
360        mStyles = (const uint32_t*)
361            (((const uint8_t*)data)+mHeader->stylesStart);
362        if (mHeader->stylesStart >= mHeader->header.size) {
363            LOGW("Bad string block: style pool starts %d, after total size %d\n",
364                    (int)mHeader->stylesStart, (int)mHeader->header.size);
365            return (mError=BAD_TYPE);
366        }
367        mStylePoolSize =
368            (mHeader->header.size-mHeader->stylesStart)/sizeof(uint32_t);
369
370        if (notDeviceEndian) {
371            size_t i;
372            uint32_t* e = const_cast<uint32_t*>(mEntryStyles);
373            for (i=0; i<mHeader->styleCount; i++) {
374                e[i] = dtohl(mEntryStyles[i]);
375            }
376            uint32_t* s = const_cast<uint32_t*>(mStyles);
377            for (i=0; i<mStylePoolSize; i++) {
378                s[i] = dtohl(mStyles[i]);
379            }
380        }
381
382        const ResStringPool_span endSpan = {
383            { htodl(ResStringPool_span::END) },
384            htodl(ResStringPool_span::END), htodl(ResStringPool_span::END)
385        };
386        if (memcmp(&mStyles[mStylePoolSize-(sizeof(endSpan)/sizeof(uint32_t))],
387                   &endSpan, sizeof(endSpan)) != 0) {
388            LOGW("Bad string block: last style is not 0xFFFFFFFF-terminated\n");
389            return (mError=BAD_TYPE);
390        }
391    } else {
392        mEntryStyles = NULL;
393        mStyles = NULL;
394        mStylePoolSize = 0;
395    }
396
397    return (mError=NO_ERROR);
398}
399
400status_t ResStringPool::getError() const
401{
402    return mError;
403}
404
405void ResStringPool::uninit()
406{
407    mError = NO_INIT;
408    if (mOwnedData) {
409        free(mOwnedData);
410        mOwnedData = NULL;
411    }
412}
413
414const uint16_t* ResStringPool::stringAt(size_t idx, size_t* outLen) const
415{
416    if (mError == NO_ERROR && idx < mHeader->stringCount) {
417        const uint32_t off = (mEntries[idx]/sizeof(uint16_t));
418        if (off < (mStringPoolSize-1)) {
419            const char16_t* str = mStrings+off;
420            *outLen = *str;
421            if ((*str)&0x8000) {
422                str++;
423                *outLen = (((*outLen)&0x7fff)<<16) + *str;
424            }
425            if ((uint32_t)(str+1+*outLen-mStrings) < mStringPoolSize) {
426                return str+1;
427            } else {
428                LOGW("Bad string block: string #%d extends to %d, past end at %d\n",
429                        (int)idx, (int)(str+1+*outLen-mStrings), (int)mStringPoolSize);
430            }
431        } else {
432            LOGW("Bad string block: string #%d entry is at %d, past end at %d\n",
433                    (int)idx, (int)(off*sizeof(uint16_t)),
434                    (int)(mStringPoolSize*sizeof(uint16_t)));
435        }
436    }
437    return NULL;
438}
439
440const ResStringPool_span* ResStringPool::styleAt(const ResStringPool_ref& ref) const
441{
442    return styleAt(ref.index);
443}
444
445const ResStringPool_span* ResStringPool::styleAt(size_t idx) const
446{
447    if (mError == NO_ERROR && idx < mHeader->styleCount) {
448        const uint32_t off = (mEntryStyles[idx]/sizeof(uint32_t));
449        if (off < mStylePoolSize) {
450            return (const ResStringPool_span*)(mStyles+off);
451        } else {
452            LOGW("Bad string block: style #%d entry is at %d, past end at %d\n",
453                    (int)idx, (int)(off*sizeof(uint32_t)),
454                    (int)(mStylePoolSize*sizeof(uint32_t)));
455        }
456    }
457    return NULL;
458}
459
460ssize_t ResStringPool::indexOfString(const char16_t* str, size_t strLen) const
461{
462    if (mError != NO_ERROR) {
463        return mError;
464    }
465
466    size_t len;
467
468    if (mHeader->flags&ResStringPool_header::SORTED_FLAG) {
469        // Do a binary search for the string...
470        ssize_t l = 0;
471        ssize_t h = mHeader->stringCount-1;
472
473        ssize_t mid;
474        while (l <= h) {
475            mid = l + (h - l)/2;
476            const char16_t* s = stringAt(mid, &len);
477            int c = s ? strzcmp16(s, len, str, strLen) : -1;
478            POOL_NOISY(printf("Looking for %s, at %s, cmp=%d, l/mid/h=%d/%d/%d\n",
479                         String8(str).string(),
480                         String8(s).string(),
481                         c, (int)l, (int)mid, (int)h));
482            if (c == 0) {
483                return mid;
484            } else if (c < 0) {
485                l = mid + 1;
486            } else {
487                h = mid - 1;
488            }
489        }
490    } else {
491        // It is unusual to get the ID from an unsorted string block...
492        // most often this happens because we want to get IDs for style
493        // span tags; since those always appear at the end of the string
494        // block, start searching at the back.
495        for (int i=mHeader->stringCount-1; i>=0; i--) {
496            const char16_t* s = stringAt(i, &len);
497            POOL_NOISY(printf("Looking for %s, at %s, i=%d\n",
498                         String8(str, strLen).string(),
499                         String8(s).string(),
500                         i));
501            if (s && strzcmp16(s, len, str, strLen) == 0) {
502                return i;
503            }
504        }
505    }
506
507    return NAME_NOT_FOUND;
508}
509
510size_t ResStringPool::size() const
511{
512    return (mError == NO_ERROR) ? mHeader->stringCount : 0;
513}
514
515// --------------------------------------------------------------------
516// --------------------------------------------------------------------
517// --------------------------------------------------------------------
518
519ResXMLParser::ResXMLParser(const ResXMLTree& tree)
520    : mTree(tree), mEventCode(BAD_DOCUMENT)
521{
522}
523
524void ResXMLParser::restart()
525{
526    mCurNode = NULL;
527    mEventCode = mTree.mError == NO_ERROR ? START_DOCUMENT : BAD_DOCUMENT;
528}
529
530ResXMLParser::event_code_t ResXMLParser::getEventType() const
531{
532    return mEventCode;
533}
534
535ResXMLParser::event_code_t ResXMLParser::next()
536{
537    if (mEventCode == START_DOCUMENT) {
538        mCurNode = mTree.mRootNode;
539        mCurExt = mTree.mRootExt;
540        return (mEventCode=mTree.mRootCode);
541    } else if (mEventCode >= FIRST_CHUNK_CODE) {
542        return nextNode();
543    }
544    return mEventCode;
545}
546
547int32_t ResXMLParser::getCommentID() const
548{
549    return mCurNode != NULL ? dtohl(mCurNode->comment.index) : -1;
550}
551
552const uint16_t* ResXMLParser::getComment(size_t* outLen) const
553{
554    int32_t id = getCommentID();
555    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
556}
557
558uint32_t ResXMLParser::getLineNumber() const
559{
560    return mCurNode != NULL ? dtohl(mCurNode->lineNumber) : -1;
561}
562
563int32_t ResXMLParser::getTextID() const
564{
565    if (mEventCode == TEXT) {
566        return dtohl(((const ResXMLTree_cdataExt*)mCurExt)->data.index);
567    }
568    return -1;
569}
570
571const uint16_t* ResXMLParser::getText(size_t* outLen) const
572{
573    int32_t id = getTextID();
574    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
575}
576
577ssize_t ResXMLParser::getTextValue(Res_value* outValue) const
578{
579    if (mEventCode == TEXT) {
580        outValue->copyFrom_dtoh(((const ResXMLTree_cdataExt*)mCurExt)->typedData);
581        return sizeof(Res_value);
582    }
583    return BAD_TYPE;
584}
585
586int32_t ResXMLParser::getNamespacePrefixID() const
587{
588    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
589        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->prefix.index);
590    }
591    return -1;
592}
593
594const uint16_t* ResXMLParser::getNamespacePrefix(size_t* outLen) const
595{
596    int32_t id = getNamespacePrefixID();
597    //printf("prefix=%d  event=%p\n", id, mEventCode);
598    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
599}
600
601int32_t ResXMLParser::getNamespaceUriID() const
602{
603    if (mEventCode == START_NAMESPACE || mEventCode == END_NAMESPACE) {
604        return dtohl(((const ResXMLTree_namespaceExt*)mCurExt)->uri.index);
605    }
606    return -1;
607}
608
609const uint16_t* ResXMLParser::getNamespaceUri(size_t* outLen) const
610{
611    int32_t id = getNamespaceUriID();
612    //printf("uri=%d  event=%p\n", id, mEventCode);
613    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
614}
615
616int32_t ResXMLParser::getElementNamespaceID() const
617{
618    if (mEventCode == START_TAG) {
619        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->ns.index);
620    }
621    if (mEventCode == END_TAG) {
622        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->ns.index);
623    }
624    return -1;
625}
626
627const uint16_t* ResXMLParser::getElementNamespace(size_t* outLen) const
628{
629    int32_t id = getElementNamespaceID();
630    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
631}
632
633int32_t ResXMLParser::getElementNameID() const
634{
635    if (mEventCode == START_TAG) {
636        return dtohl(((const ResXMLTree_attrExt*)mCurExt)->name.index);
637    }
638    if (mEventCode == END_TAG) {
639        return dtohl(((const ResXMLTree_endElementExt*)mCurExt)->name.index);
640    }
641    return -1;
642}
643
644const uint16_t* ResXMLParser::getElementName(size_t* outLen) const
645{
646    int32_t id = getElementNameID();
647    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
648}
649
650size_t ResXMLParser::getAttributeCount() const
651{
652    if (mEventCode == START_TAG) {
653        return dtohs(((const ResXMLTree_attrExt*)mCurExt)->attributeCount);
654    }
655    return 0;
656}
657
658int32_t ResXMLParser::getAttributeNamespaceID(size_t idx) const
659{
660    if (mEventCode == START_TAG) {
661        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
662        if (idx < dtohs(tag->attributeCount)) {
663            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
664                (((const uint8_t*)tag)
665                 + dtohs(tag->attributeStart)
666                 + (dtohs(tag->attributeSize)*idx));
667            return dtohl(attr->ns.index);
668        }
669    }
670    return -2;
671}
672
673const uint16_t* ResXMLParser::getAttributeNamespace(size_t idx, size_t* outLen) const
674{
675    int32_t id = getAttributeNamespaceID(idx);
676    //printf("attribute namespace=%d  idx=%d  event=%p\n", id, idx, mEventCode);
677    //XML_NOISY(printf("getAttributeNamespace 0x%x=0x%x\n", idx, id));
678    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
679}
680
681int32_t ResXMLParser::getAttributeNameID(size_t idx) const
682{
683    if (mEventCode == START_TAG) {
684        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
685        if (idx < dtohs(tag->attributeCount)) {
686            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
687                (((const uint8_t*)tag)
688                 + dtohs(tag->attributeStart)
689                 + (dtohs(tag->attributeSize)*idx));
690            return dtohl(attr->name.index);
691        }
692    }
693    return -1;
694}
695
696const uint16_t* ResXMLParser::getAttributeName(size_t idx, size_t* outLen) const
697{
698    int32_t id = getAttributeNameID(idx);
699    //printf("attribute name=%d  idx=%d  event=%p\n", id, idx, mEventCode);
700    //XML_NOISY(printf("getAttributeName 0x%x=0x%x\n", idx, id));
701    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
702}
703
704uint32_t ResXMLParser::getAttributeNameResID(size_t idx) const
705{
706    int32_t id = getAttributeNameID(idx);
707    if (id >= 0 && (size_t)id < mTree.mNumResIds) {
708        return dtohl(mTree.mResIds[id]);
709    }
710    return 0;
711}
712
713int32_t ResXMLParser::getAttributeValueStringID(size_t idx) const
714{
715    if (mEventCode == START_TAG) {
716        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
717        if (idx < dtohs(tag->attributeCount)) {
718            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
719                (((const uint8_t*)tag)
720                 + dtohs(tag->attributeStart)
721                 + (dtohs(tag->attributeSize)*idx));
722            return dtohl(attr->rawValue.index);
723        }
724    }
725    return -1;
726}
727
728const uint16_t* ResXMLParser::getAttributeStringValue(size_t idx, size_t* outLen) const
729{
730    int32_t id = getAttributeValueStringID(idx);
731    //XML_NOISY(printf("getAttributeValue 0x%x=0x%x\n", idx, id));
732    return id >= 0 ? mTree.mStrings.stringAt(id, outLen) : NULL;
733}
734
735int32_t ResXMLParser::getAttributeDataType(size_t idx) const
736{
737    if (mEventCode == START_TAG) {
738        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
739        if (idx < dtohs(tag->attributeCount)) {
740            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
741                (((const uint8_t*)tag)
742                 + dtohs(tag->attributeStart)
743                 + (dtohs(tag->attributeSize)*idx));
744            return attr->typedValue.dataType;
745        }
746    }
747    return Res_value::TYPE_NULL;
748}
749
750int32_t ResXMLParser::getAttributeData(size_t idx) const
751{
752    if (mEventCode == START_TAG) {
753        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
754        if (idx < dtohs(tag->attributeCount)) {
755            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
756                (((const uint8_t*)tag)
757                 + dtohs(tag->attributeStart)
758                 + (dtohs(tag->attributeSize)*idx));
759            return dtohl(attr->typedValue.data);
760        }
761    }
762    return 0;
763}
764
765ssize_t ResXMLParser::getAttributeValue(size_t idx, Res_value* outValue) const
766{
767    if (mEventCode == START_TAG) {
768        const ResXMLTree_attrExt* tag = (const ResXMLTree_attrExt*)mCurExt;
769        if (idx < dtohs(tag->attributeCount)) {
770            const ResXMLTree_attribute* attr = (const ResXMLTree_attribute*)
771                (((const uint8_t*)tag)
772                 + dtohs(tag->attributeStart)
773                 + (dtohs(tag->attributeSize)*idx));
774            outValue->copyFrom_dtoh(attr->typedValue);
775            return sizeof(Res_value);
776        }
777    }
778    return BAD_TYPE;
779}
780
781ssize_t ResXMLParser::indexOfAttribute(const char* ns, const char* attr) const
782{
783    String16 nsStr(ns != NULL ? ns : "");
784    String16 attrStr(attr);
785    return indexOfAttribute(ns ? nsStr.string() : NULL, ns ? nsStr.size() : 0,
786                            attrStr.string(), attrStr.size());
787}
788
789ssize_t ResXMLParser::indexOfAttribute(const char16_t* ns, size_t nsLen,
790                                       const char16_t* attr, size_t attrLen) const
791{
792    if (mEventCode == START_TAG) {
793        const size_t N = getAttributeCount();
794        for (size_t i=0; i<N; i++) {
795            size_t curNsLen, curAttrLen;
796            const char16_t* curNs = getAttributeNamespace(i, &curNsLen);
797            const char16_t* curAttr = getAttributeName(i, &curAttrLen);
798            //printf("%d: ns=%p attr=%p curNs=%p curAttr=%p\n",
799            //       i, ns, attr, curNs, curAttr);
800            //printf(" --> attr=%s, curAttr=%s\n",
801            //       String8(attr).string(), String8(curAttr).string());
802            if (attr && curAttr && (strzcmp16(attr, attrLen, curAttr, curAttrLen) == 0)) {
803                if (ns == NULL) {
804                    if (curNs == NULL) return i;
805                } else if (curNs != NULL) {
806                    //printf(" --> ns=%s, curNs=%s\n",
807                    //       String8(ns).string(), String8(curNs).string());
808                    if (strzcmp16(ns, nsLen, curNs, curNsLen) == 0) return i;
809                }
810            }
811        }
812    }
813
814    return NAME_NOT_FOUND;
815}
816
817ssize_t ResXMLParser::indexOfID() const
818{
819    if (mEventCode == START_TAG) {
820        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->idIndex);
821        if (idx > 0) return (idx-1);
822    }
823    return NAME_NOT_FOUND;
824}
825
826ssize_t ResXMLParser::indexOfClass() const
827{
828    if (mEventCode == START_TAG) {
829        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->classIndex);
830        if (idx > 0) return (idx-1);
831    }
832    return NAME_NOT_FOUND;
833}
834
835ssize_t ResXMLParser::indexOfStyle() const
836{
837    if (mEventCode == START_TAG) {
838        const ssize_t idx = dtohs(((const ResXMLTree_attrExt*)mCurExt)->styleIndex);
839        if (idx > 0) return (idx-1);
840    }
841    return NAME_NOT_FOUND;
842}
843
844ResXMLParser::event_code_t ResXMLParser::nextNode()
845{
846    if (mEventCode < 0) {
847        return mEventCode;
848    }
849
850    do {
851        const ResXMLTree_node* next = (const ResXMLTree_node*)
852            (((const uint8_t*)mCurNode) + dtohl(mCurNode->header.size));
853        //LOGW("Next node: prev=%p, next=%p\n", mCurNode, next);
854
855        if (((const uint8_t*)next) >= mTree.mDataEnd) {
856            mCurNode = NULL;
857            return (mEventCode=END_DOCUMENT);
858        }
859
860        if (mTree.validateNode(next) != NO_ERROR) {
861            mCurNode = NULL;
862            return (mEventCode=BAD_DOCUMENT);
863        }
864
865        mCurNode = next;
866        const uint16_t headerSize = dtohs(next->header.headerSize);
867        const uint32_t totalSize = dtohl(next->header.size);
868        mCurExt = ((const uint8_t*)next) + headerSize;
869        size_t minExtSize = 0;
870        event_code_t eventCode = (event_code_t)dtohs(next->header.type);
871        switch ((mEventCode=eventCode)) {
872            case RES_XML_START_NAMESPACE_TYPE:
873            case RES_XML_END_NAMESPACE_TYPE:
874                minExtSize = sizeof(ResXMLTree_namespaceExt);
875                break;
876            case RES_XML_START_ELEMENT_TYPE:
877                minExtSize = sizeof(ResXMLTree_attrExt);
878                break;
879            case RES_XML_END_ELEMENT_TYPE:
880                minExtSize = sizeof(ResXMLTree_endElementExt);
881                break;
882            case RES_XML_CDATA_TYPE:
883                minExtSize = sizeof(ResXMLTree_cdataExt);
884                break;
885            default:
886                LOGW("Unknown XML block: header type %d in node at %d\n",
887                     (int)dtohs(next->header.type),
888                     (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)));
889                continue;
890        }
891
892        if ((totalSize-headerSize) < minExtSize) {
893            LOGW("Bad XML block: header type 0x%x in node at 0x%x has size %d, need %d\n",
894                 (int)dtohs(next->header.type),
895                 (int)(((const uint8_t*)next)-((const uint8_t*)mTree.mHeader)),
896                 (int)(totalSize-headerSize), (int)minExtSize);
897            return (mEventCode=BAD_DOCUMENT);
898        }
899
900        //printf("CurNode=%p, CurExt=%p, headerSize=%d, minExtSize=%d\n",
901        //       mCurNode, mCurExt, headerSize, minExtSize);
902
903        return eventCode;
904    } while (true);
905}
906
907void ResXMLParser::getPosition(ResXMLParser::ResXMLPosition* pos) const
908{
909    pos->eventCode = mEventCode;
910    pos->curNode = mCurNode;
911    pos->curExt = mCurExt;
912}
913
914void ResXMLParser::setPosition(const ResXMLParser::ResXMLPosition& pos)
915{
916    mEventCode = pos.eventCode;
917    mCurNode = pos.curNode;
918    mCurExt = pos.curExt;
919}
920
921
922// --------------------------------------------------------------------
923
924static volatile int32_t gCount = 0;
925
926ResXMLTree::ResXMLTree()
927    : ResXMLParser(*this)
928    , mError(NO_INIT), mOwnedData(NULL)
929{
930    //LOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
931    restart();
932}
933
934ResXMLTree::ResXMLTree(const void* data, size_t size, bool copyData)
935    : ResXMLParser(*this)
936    , mError(NO_INIT), mOwnedData(NULL)
937{
938    //LOGI("Creating ResXMLTree %p #%d\n", this, android_atomic_inc(&gCount)+1);
939    setTo(data, size, copyData);
940}
941
942ResXMLTree::~ResXMLTree()
943{
944    //LOGI("Destroying ResXMLTree in %p #%d\n", this, android_atomic_dec(&gCount)-1);
945    uninit();
946}
947
948status_t ResXMLTree::setTo(const void* data, size_t size, bool copyData)
949{
950    uninit();
951    mEventCode = START_DOCUMENT;
952
953    if (copyData) {
954        mOwnedData = malloc(size);
955        if (mOwnedData == NULL) {
956            return (mError=NO_MEMORY);
957        }
958        memcpy(mOwnedData, data, size);
959        data = mOwnedData;
960    }
961
962    mHeader = (const ResXMLTree_header*)data;
963    mSize = dtohl(mHeader->header.size);
964    if (dtohs(mHeader->header.headerSize) > mSize || mSize > size) {
965        LOGW("Bad XML block: header size %d or total size %d is larger than data size %d\n",
966             (int)dtohs(mHeader->header.headerSize),
967             (int)dtohl(mHeader->header.size), (int)size);
968        mError = BAD_TYPE;
969        restart();
970        return mError;
971    }
972    mDataEnd = ((const uint8_t*)mHeader) + mSize;
973
974    mStrings.uninit();
975    mRootNode = NULL;
976    mResIds = NULL;
977    mNumResIds = 0;
978
979    // First look for a couple interesting chunks: the string block
980    // and first XML node.
981    const ResChunk_header* chunk =
982        (const ResChunk_header*)(((const uint8_t*)mHeader) + dtohs(mHeader->header.headerSize));
983    const ResChunk_header* lastChunk = chunk;
984    while (((const uint8_t*)chunk) < (mDataEnd-sizeof(ResChunk_header)) &&
985           ((const uint8_t*)chunk) < (mDataEnd-dtohl(chunk->size))) {
986        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), mDataEnd, "XML");
987        if (err != NO_ERROR) {
988            mError = err;
989            goto done;
990        }
991        const uint16_t type = dtohs(chunk->type);
992        const size_t size = dtohl(chunk->size);
993        XML_NOISY(printf("Scanning @ %p: type=0x%x, size=0x%x\n",
994                     (void*)(((uint32_t)chunk)-((uint32_t)mHeader)), type, size));
995        if (type == RES_STRING_POOL_TYPE) {
996            mStrings.setTo(chunk, size);
997        } else if (type == RES_XML_RESOURCE_MAP_TYPE) {
998            mResIds = (const uint32_t*)
999                (((const uint8_t*)chunk)+dtohs(chunk->headerSize));
1000            mNumResIds = (dtohl(chunk->size)-dtohs(chunk->headerSize))/sizeof(uint32_t);
1001        } else if (type >= RES_XML_FIRST_CHUNK_TYPE
1002                   && type <= RES_XML_LAST_CHUNK_TYPE) {
1003            if (validateNode((const ResXMLTree_node*)chunk) != NO_ERROR) {
1004                mError = BAD_TYPE;
1005                goto done;
1006            }
1007            mCurNode = (const ResXMLTree_node*)lastChunk;
1008            if (nextNode() == BAD_DOCUMENT) {
1009                mError = BAD_TYPE;
1010                goto done;
1011            }
1012            mRootNode = mCurNode;
1013            mRootExt = mCurExt;
1014            mRootCode = mEventCode;
1015            break;
1016        } else {
1017            XML_NOISY(printf("Skipping unknown chunk!\n"));
1018        }
1019        lastChunk = chunk;
1020        chunk = (const ResChunk_header*)
1021            (((const uint8_t*)chunk) + size);
1022    }
1023
1024    if (mRootNode == NULL) {
1025        LOGW("Bad XML block: no root element node found\n");
1026        mError = BAD_TYPE;
1027        goto done;
1028    }
1029
1030    mError = mStrings.getError();
1031
1032done:
1033    restart();
1034    return mError;
1035}
1036
1037status_t ResXMLTree::getError() const
1038{
1039    return mError;
1040}
1041
1042void ResXMLTree::uninit()
1043{
1044    mError = NO_INIT;
1045    if (mOwnedData) {
1046        free(mOwnedData);
1047        mOwnedData = NULL;
1048    }
1049    restart();
1050}
1051
1052const ResStringPool& ResXMLTree::getStrings() const
1053{
1054    return mStrings;
1055}
1056
1057status_t ResXMLTree::validateNode(const ResXMLTree_node* node) const
1058{
1059    const uint16_t eventCode = dtohs(node->header.type);
1060
1061    status_t err = validate_chunk(
1062        &node->header, sizeof(ResXMLTree_node),
1063        mDataEnd, "ResXMLTree_node");
1064
1065    if (err >= NO_ERROR) {
1066        // Only perform additional validation on START nodes
1067        if (eventCode != RES_XML_START_ELEMENT_TYPE) {
1068            return NO_ERROR;
1069        }
1070
1071        const uint16_t headerSize = dtohs(node->header.headerSize);
1072        const uint32_t size = dtohl(node->header.size);
1073        const ResXMLTree_attrExt* attrExt = (const ResXMLTree_attrExt*)
1074            (((const uint8_t*)node) + headerSize);
1075        // check for sensical values pulled out of the stream so far...
1076        if ((size >= headerSize + sizeof(ResXMLTree_attrExt))
1077                && ((void*)attrExt > (void*)node)) {
1078            const size_t attrSize = ((size_t)dtohs(attrExt->attributeSize))
1079                * dtohs(attrExt->attributeCount);
1080            if ((dtohs(attrExt->attributeStart)+attrSize) <= (size-headerSize)) {
1081                return NO_ERROR;
1082            }
1083            LOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1084                    (unsigned int)(dtohs(attrExt->attributeStart)+attrSize),
1085                    (unsigned int)(size-headerSize));
1086        }
1087        else {
1088            LOGW("Bad XML start block: node header size 0x%x, size 0x%x\n",
1089                (unsigned int)headerSize, (unsigned int)size);
1090        }
1091        return BAD_TYPE;
1092    }
1093
1094    return err;
1095
1096#if 0
1097    const bool isStart = dtohs(node->header.type) == RES_XML_START_ELEMENT_TYPE;
1098
1099    const uint16_t headerSize = dtohs(node->header.headerSize);
1100    const uint32_t size = dtohl(node->header.size);
1101
1102    if (headerSize >= (isStart ? sizeof(ResXMLTree_attrNode) : sizeof(ResXMLTree_node))) {
1103        if (size >= headerSize) {
1104            if (((const uint8_t*)node) <= (mDataEnd-size)) {
1105                if (!isStart) {
1106                    return NO_ERROR;
1107                }
1108                if ((((size_t)dtohs(node->attributeSize))*dtohs(node->attributeCount))
1109                        <= (size-headerSize)) {
1110                    return NO_ERROR;
1111                }
1112                LOGW("Bad XML block: node attributes use 0x%x bytes, only have 0x%x bytes\n",
1113                        ((int)dtohs(node->attributeSize))*dtohs(node->attributeCount),
1114                        (int)(size-headerSize));
1115                return BAD_TYPE;
1116            }
1117            LOGW("Bad XML block: node at 0x%x extends beyond data end 0x%x\n",
1118                    (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)), (int)mSize);
1119            return BAD_TYPE;
1120        }
1121        LOGW("Bad XML block: node at 0x%x header size 0x%x smaller than total size 0x%x\n",
1122                (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1123                (int)headerSize, (int)size);
1124        return BAD_TYPE;
1125    }
1126    LOGW("Bad XML block: node at 0x%x header size 0x%x too small\n",
1127            (int)(((const uint8_t*)node)-((const uint8_t*)mHeader)),
1128            (int)headerSize);
1129    return BAD_TYPE;
1130#endif
1131}
1132
1133// --------------------------------------------------------------------
1134// --------------------------------------------------------------------
1135// --------------------------------------------------------------------
1136
1137struct ResTable::Header
1138{
1139    Header(ResTable* _owner) : owner(_owner), ownedData(NULL), header(NULL) { }
1140
1141    ResTable* const                 owner;
1142    void*                           ownedData;
1143    const ResTable_header*          header;
1144    size_t                          size;
1145    const uint8_t*                  dataEnd;
1146    size_t                          index;
1147    void*                           cookie;
1148
1149    ResStringPool                   values;
1150};
1151
1152struct ResTable::Type
1153{
1154    Type(const Header* _header, const Package* _package, size_t count)
1155        : header(_header), package(_package), entryCount(count),
1156          typeSpec(NULL), typeSpecFlags(NULL) { }
1157    const Header* const             header;
1158    const Package* const            package;
1159    const size_t                    entryCount;
1160    const ResTable_typeSpec*        typeSpec;
1161    const uint32_t*                 typeSpecFlags;
1162    Vector<const ResTable_type*>    configs;
1163};
1164
1165struct ResTable::Package
1166{
1167    Package(ResTable* _owner, const Header* _header, const ResTable_package* _package)
1168        : owner(_owner), header(_header), package(_package) { }
1169    ~Package()
1170    {
1171        size_t i = types.size();
1172        while (i > 0) {
1173            i--;
1174            delete types[i];
1175        }
1176    }
1177
1178    ResTable* const                 owner;
1179    const Header* const             header;
1180    const ResTable_package* const   package;
1181    Vector<Type*>                   types;
1182
1183    ResStringPool                   typeStrings;
1184    ResStringPool                   keyStrings;
1185
1186    const Type* getType(size_t idx) const {
1187        return idx < types.size() ? types[idx] : NULL;
1188    }
1189};
1190
1191// A group of objects describing a particular resource package.
1192// The first in 'package' is always the root object (from the resource
1193// table that defined the package); the ones after are skins on top of it.
1194struct ResTable::PackageGroup
1195{
1196    PackageGroup(ResTable* _owner, const String16& _name, uint32_t _id)
1197        : owner(_owner), name(_name), id(_id), typeCount(0), bags(NULL) { }
1198    ~PackageGroup() {
1199        clearBagCache();
1200        const size_t N = packages.size();
1201        for (size_t i=0; i<N; i++) {
1202            Package* pkg = packages[i];
1203            if (pkg->owner == owner) {
1204                delete pkg;
1205            }
1206        }
1207    }
1208
1209    void clearBagCache() {
1210        if (bags) {
1211            TABLE_NOISY(printf("bags=%p\n", bags));
1212            Package* pkg = packages[0];
1213            TABLE_NOISY(printf("typeCount=%x\n", typeCount));
1214            for (size_t i=0; i<typeCount; i++) {
1215                TABLE_NOISY(printf("type=%d\n", i));
1216                const Type* type = pkg->getType(i);
1217                if (type != NULL) {
1218                    bag_set** typeBags = bags[i];
1219                    TABLE_NOISY(printf("typeBags=%p\n", typeBags));
1220                    if (typeBags) {
1221                        TABLE_NOISY(printf("type->entryCount=%x\n", type->entryCount));
1222                        const size_t N = type->entryCount;
1223                        for (size_t j=0; j<N; j++) {
1224                            if (typeBags[j] && typeBags[j] != (bag_set*)0xFFFFFFFF)
1225                                free(typeBags[j]);
1226                        }
1227                        free(typeBags);
1228                    }
1229                }
1230            }
1231            free(bags);
1232            bags = NULL;
1233        }
1234    }
1235
1236    ResTable* const                 owner;
1237    String16 const                  name;
1238    uint32_t const                  id;
1239    Vector<Package*>                packages;
1240
1241    // This is for finding typeStrings and other common package stuff.
1242    Package*                        basePackage;
1243
1244    // For quick access.
1245    size_t                          typeCount;
1246
1247    // Computed attribute bags, first indexed by the type and second
1248    // by the entry in that type.
1249    bag_set***                      bags;
1250};
1251
1252struct ResTable::bag_set
1253{
1254    size_t numAttrs;    // number in array
1255    size_t availAttrs;  // total space in array
1256    uint32_t typeSpecFlags;
1257    // Followed by 'numAttr' bag_entry structures.
1258};
1259
1260ResTable::Theme::Theme(const ResTable& table)
1261    : mTable(table)
1262{
1263    memset(mPackages, 0, sizeof(mPackages));
1264}
1265
1266ResTable::Theme::~Theme()
1267{
1268    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
1269        package_info* pi = mPackages[i];
1270        if (pi != NULL) {
1271            free_package(pi);
1272        }
1273    }
1274}
1275
1276void ResTable::Theme::free_package(package_info* pi)
1277{
1278    for (size_t j=0; j<pi->numTypes; j++) {
1279        theme_entry* te = pi->types[j].entries;
1280        if (te != NULL) {
1281            free(te);
1282        }
1283    }
1284    free(pi);
1285}
1286
1287ResTable::Theme::package_info* ResTable::Theme::copy_package(package_info* pi)
1288{
1289    package_info* newpi = (package_info*)malloc(
1290        sizeof(package_info) + (pi->numTypes*sizeof(type_info)));
1291    newpi->numTypes = pi->numTypes;
1292    for (size_t j=0; j<newpi->numTypes; j++) {
1293        size_t cnt = pi->types[j].numEntries;
1294        newpi->types[j].numEntries = cnt;
1295        theme_entry* te = pi->types[j].entries;
1296        if (te != NULL) {
1297            theme_entry* newte = (theme_entry*)malloc(cnt*sizeof(theme_entry));
1298            newpi->types[j].entries = newte;
1299            memcpy(newte, te, cnt*sizeof(theme_entry));
1300        } else {
1301            newpi->types[j].entries = NULL;
1302        }
1303    }
1304    return newpi;
1305}
1306
1307status_t ResTable::Theme::applyStyle(uint32_t resID, bool force)
1308{
1309    const bag_entry* bag;
1310    uint32_t bagTypeSpecFlags = 0;
1311    mTable.lock();
1312    const ssize_t N = mTable.getBagLocked(resID, &bag, &bagTypeSpecFlags);
1313    TABLE_NOISY(LOGV("Applying style 0x%08x to theme %p, count=%d", resID, this, N));
1314    if (N < 0) {
1315        mTable.unlock();
1316        return N;
1317    }
1318
1319    uint32_t curPackage = 0xffffffff;
1320    ssize_t curPackageIndex = 0;
1321    package_info* curPI = NULL;
1322    uint32_t curType = 0xffffffff;
1323    size_t numEntries = 0;
1324    theme_entry* curEntries = NULL;
1325
1326    const bag_entry* end = bag + N;
1327    while (bag < end) {
1328        const uint32_t attrRes = bag->map.name.ident;
1329        const uint32_t p = Res_GETPACKAGE(attrRes);
1330        const uint32_t t = Res_GETTYPE(attrRes);
1331        const uint32_t e = Res_GETENTRY(attrRes);
1332
1333        if (curPackage != p) {
1334            const ssize_t pidx = mTable.getResourcePackageIndex(attrRes);
1335            if (pidx < 0) {
1336                LOGE("Style contains key with bad package: 0x%08x\n", attrRes);
1337                bag++;
1338                continue;
1339            }
1340            curPackage = p;
1341            curPackageIndex = pidx;
1342            curPI = mPackages[pidx];
1343            if (curPI == NULL) {
1344                PackageGroup* const grp = mTable.mPackageGroups[pidx];
1345                int cnt = grp->typeCount;
1346                curPI = (package_info*)malloc(
1347                    sizeof(package_info) + (cnt*sizeof(type_info)));
1348                curPI->numTypes = cnt;
1349                memset(curPI->types, 0, cnt*sizeof(type_info));
1350                mPackages[pidx] = curPI;
1351            }
1352            curType = 0xffffffff;
1353        }
1354        if (curType != t) {
1355            if (t >= curPI->numTypes) {
1356                LOGE("Style contains key with bad type: 0x%08x\n", attrRes);
1357                bag++;
1358                continue;
1359            }
1360            curType = t;
1361            curEntries = curPI->types[t].entries;
1362            if (curEntries == NULL) {
1363                PackageGroup* const grp = mTable.mPackageGroups[curPackageIndex];
1364                const Type* type = grp->packages[0]->getType(t);
1365                int cnt = type != NULL ? type->entryCount : 0;
1366                curEntries = (theme_entry*)malloc(cnt*sizeof(theme_entry));
1367                memset(curEntries, Res_value::TYPE_NULL, cnt*sizeof(theme_entry));
1368                curPI->types[t].numEntries = cnt;
1369                curPI->types[t].entries = curEntries;
1370            }
1371            numEntries = curPI->types[t].numEntries;
1372        }
1373        if (e >= numEntries) {
1374            LOGE("Style contains key with bad entry: 0x%08x\n", attrRes);
1375            bag++;
1376            continue;
1377        }
1378        theme_entry* curEntry = curEntries + e;
1379        TABLE_NOISY(LOGV("Attr 0x%08x: type=0x%x, data=0x%08x; curType=0x%x",
1380                   attrRes, bag->map.value.dataType, bag->map.value.data,
1381             curEntry->value.dataType));
1382        if (force || curEntry->value.dataType == Res_value::TYPE_NULL) {
1383            curEntry->stringBlock = bag->stringBlock;
1384            curEntry->typeSpecFlags |= bagTypeSpecFlags;
1385            curEntry->value = bag->map.value;
1386        }
1387
1388        bag++;
1389    }
1390
1391    mTable.unlock();
1392
1393    //LOGI("Applying style 0x%08x (force=%d)  theme %p...\n", resID, force, this);
1394    //dumpToLog();
1395
1396    return NO_ERROR;
1397}
1398
1399status_t ResTable::Theme::setTo(const Theme& other)
1400{
1401    //LOGI("Setting theme %p from theme %p...\n", this, &other);
1402    //dumpToLog();
1403    //other.dumpToLog();
1404
1405    if (&mTable == &other.mTable) {
1406        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
1407            if (mPackages[i] != NULL) {
1408                free_package(mPackages[i]);
1409            }
1410            if (other.mPackages[i] != NULL) {
1411                mPackages[i] = copy_package(other.mPackages[i]);
1412            } else {
1413                mPackages[i] = NULL;
1414            }
1415        }
1416    } else {
1417        // @todo: need to really implement this, not just copy
1418        // the system package (which is still wrong because it isn't
1419        // fixing up resource references).
1420        for (size_t i=0; i<Res_MAXPACKAGE; i++) {
1421            if (mPackages[i] != NULL) {
1422                free_package(mPackages[i]);
1423            }
1424            if (i == 0 && other.mPackages[i] != NULL) {
1425                mPackages[i] = copy_package(other.mPackages[i]);
1426            } else {
1427                mPackages[i] = NULL;
1428            }
1429        }
1430    }
1431
1432    //LOGI("Final theme:");
1433    //dumpToLog();
1434
1435    return NO_ERROR;
1436}
1437
1438ssize_t ResTable::Theme::getAttribute(uint32_t resID, Res_value* outValue,
1439        uint32_t* outTypeSpecFlags) const
1440{
1441    int cnt = 20;
1442
1443    if (outTypeSpecFlags != NULL) *outTypeSpecFlags = 0;
1444
1445    do {
1446        const ssize_t p = mTable.getResourcePackageIndex(resID);
1447        const uint32_t t = Res_GETTYPE(resID);
1448        const uint32_t e = Res_GETENTRY(resID);
1449
1450        TABLE_NOISY(LOGV("Looking up attr 0x%08x in theme %p", resID, this));
1451
1452        if (p >= 0) {
1453            const package_info* const pi = mPackages[p];
1454            if (pi != NULL) {
1455                if (t < pi->numTypes) {
1456                    const type_info& ti = pi->types[t];
1457                    if (e < ti.numEntries) {
1458                        const theme_entry& te = ti.entries[e];
1459                            if (outTypeSpecFlags != NULL) {
1460                                *outTypeSpecFlags |= te.typeSpecFlags;
1461                            }
1462                        const uint8_t type = te.value.dataType;
1463                        if (type == Res_value::TYPE_ATTRIBUTE) {
1464                            if (cnt > 0) {
1465                                cnt--;
1466                                resID = te.value.data;
1467                                continue;
1468                            }
1469                            LOGW("Too many attribute references, stopped at: 0x%08x\n", resID);
1470                            return BAD_INDEX;
1471                        } else if (type != Res_value::TYPE_NULL) {
1472                            *outValue = te.value;
1473                            return te.stringBlock;
1474                        }
1475                        return BAD_INDEX;
1476                    }
1477                }
1478            }
1479        }
1480        break;
1481
1482    } while (true);
1483
1484    return BAD_INDEX;
1485}
1486
1487ssize_t ResTable::Theme::resolveAttributeReference(Res_value* inOutValue,
1488        ssize_t blockIndex, uint32_t* outLastRef,
1489        uint32_t* inoutTypeSpecFlags) const
1490{
1491    //printf("Resolving type=0x%x\n", inOutValue->dataType);
1492    if (inOutValue->dataType == Res_value::TYPE_ATTRIBUTE) {
1493        uint32_t newTypeSpecFlags;
1494        blockIndex = getAttribute(inOutValue->data, inOutValue, &newTypeSpecFlags);
1495        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newTypeSpecFlags;
1496        //printf("Retrieved attribute new type=0x%x\n", inOutValue->dataType);
1497        if (blockIndex < 0) {
1498            return blockIndex;
1499        }
1500    }
1501    return mTable.resolveReference(inOutValue, blockIndex, outLastRef);
1502}
1503
1504void ResTable::Theme::dumpToLog() const
1505{
1506    LOGI("Theme %p:\n", this);
1507    for (size_t i=0; i<Res_MAXPACKAGE; i++) {
1508        package_info* pi = mPackages[i];
1509        if (pi == NULL) continue;
1510
1511        LOGI("  Package #0x%02x:\n", (int)(i+1));
1512        for (size_t j=0; j<pi->numTypes; j++) {
1513            type_info& ti = pi->types[j];
1514            if (ti.numEntries == 0) continue;
1515
1516            LOGI("    Type #0x%02x:\n", (int)(j+1));
1517            for (size_t k=0; k<ti.numEntries; k++) {
1518                theme_entry& te = ti.entries[k];
1519                if (te.value.dataType == Res_value::TYPE_NULL) continue;
1520                LOGI("      0x%08x: t=0x%x, d=0x%08x (block=%d)\n",
1521                     (int)Res_MAKEID(i, j, k),
1522                     te.value.dataType, (int)te.value.data, (int)te.stringBlock);
1523            }
1524        }
1525    }
1526}
1527
1528ResTable::ResTable()
1529    : mError(NO_INIT)
1530{
1531    memset(&mParams, 0, sizeof(mParams));
1532    memset(mPackageMap, 0, sizeof(mPackageMap));
1533    //LOGI("Creating ResTable %p\n", this);
1534}
1535
1536ResTable::ResTable(const void* data, size_t size, void* cookie, bool copyData)
1537    : mError(NO_INIT)
1538{
1539    memset(&mParams, 0, sizeof(mParams));
1540    memset(mPackageMap, 0, sizeof(mPackageMap));
1541    add(data, size, cookie, copyData);
1542    LOG_FATAL_IF(mError != NO_ERROR, "Error parsing resource table");
1543    //LOGI("Creating ResTable %p\n", this);
1544}
1545
1546ResTable::~ResTable()
1547{
1548    //LOGI("Destroying ResTable in %p\n", this);
1549    uninit();
1550}
1551
1552inline ssize_t ResTable::getResourcePackageIndex(uint32_t resID) const
1553{
1554    return ((ssize_t)mPackageMap[Res_GETPACKAGE(resID)+1])-1;
1555}
1556
1557status_t ResTable::add(const void* data, size_t size, void* cookie, bool copyData)
1558{
1559    return add(data, size, cookie, NULL, copyData);
1560}
1561
1562status_t ResTable::add(Asset* asset, void* cookie, bool copyData)
1563{
1564    const void* data = asset->getBuffer(true);
1565    if (data == NULL) {
1566        LOGW("Unable to get buffer of resource asset file");
1567        return UNKNOWN_ERROR;
1568    }
1569    size_t size = (size_t)asset->getLength();
1570    return add(data, size, cookie, asset, copyData);
1571}
1572
1573status_t ResTable::add(ResTable* src)
1574{
1575    mError = src->mError;
1576
1577    for (size_t i=0; i<src->mHeaders.size(); i++) {
1578        mHeaders.add(src->mHeaders[i]);
1579    }
1580
1581    for (size_t i=0; i<src->mPackageGroups.size(); i++) {
1582        PackageGroup* srcPg = src->mPackageGroups[i];
1583        PackageGroup* pg = new PackageGroup(this, srcPg->name, srcPg->id);
1584        for (size_t j=0; j<srcPg->packages.size(); j++) {
1585            pg->packages.add(srcPg->packages[j]);
1586        }
1587        pg->basePackage = srcPg->basePackage;
1588        pg->typeCount = srcPg->typeCount;
1589        mPackageGroups.add(pg);
1590    }
1591
1592    memcpy(mPackageMap, src->mPackageMap, sizeof(mPackageMap));
1593
1594    return mError;
1595}
1596
1597status_t ResTable::add(const void* data, size_t size, void* cookie,
1598                       Asset* asset, bool copyData)
1599{
1600    if (!data) return NO_ERROR;
1601    Header* header = new Header(this);
1602    header->index = mHeaders.size();
1603    header->cookie = cookie;
1604    mHeaders.add(header);
1605
1606    const bool notDeviceEndian = htods(0xf0) != 0xf0;
1607
1608    LOAD_TABLE_NOISY(
1609        LOGV("Adding resources to ResTable: data=%p, size=0x%x, cookie=%p, asset=%p, copy=%d\n",
1610             data, size, cookie, asset, copyData));
1611
1612    if (copyData || notDeviceEndian) {
1613        header->ownedData = malloc(size);
1614        if (header->ownedData == NULL) {
1615            return (mError=NO_MEMORY);
1616        }
1617        memcpy(header->ownedData, data, size);
1618        data = header->ownedData;
1619    }
1620
1621    header->header = (const ResTable_header*)data;
1622    header->size = dtohl(header->header->header.size);
1623    //LOGI("Got size 0x%x, again size 0x%x, raw size 0x%x\n", header->size,
1624    //     dtohl(header->header->header.size), header->header->header.size);
1625    LOAD_TABLE_NOISY(LOGV("Loading ResTable @%p:\n", header->header));
1626    LOAD_TABLE_NOISY(printHexData(2, header->header, header->size < 256 ? header->size : 256,
1627                                  16, 16, 0, false, printToLogFunc));
1628    if (dtohs(header->header->header.headerSize) > header->size
1629            || header->size > size) {
1630        LOGW("Bad resource table: header size 0x%x or total size 0x%x is larger than data size 0x%x\n",
1631             (int)dtohs(header->header->header.headerSize),
1632             (int)header->size, (int)size);
1633        return (mError=BAD_TYPE);
1634    }
1635    if (((dtohs(header->header->header.headerSize)|header->size)&0x3) != 0) {
1636        LOGW("Bad resource table: header size 0x%x or total size 0x%x is not on an integer boundary\n",
1637             (int)dtohs(header->header->header.headerSize),
1638             (int)header->size);
1639        return (mError=BAD_TYPE);
1640    }
1641    header->dataEnd = ((const uint8_t*)header->header) + header->size;
1642
1643    // Iterate through all chunks.
1644    size_t curPackage = 0;
1645
1646    const ResChunk_header* chunk =
1647        (const ResChunk_header*)(((const uint8_t*)header->header)
1648                                 + dtohs(header->header->header.headerSize));
1649    while (((const uint8_t*)chunk) <= (header->dataEnd-sizeof(ResChunk_header)) &&
1650           ((const uint8_t*)chunk) <= (header->dataEnd-dtohl(chunk->size))) {
1651        status_t err = validate_chunk(chunk, sizeof(ResChunk_header), header->dataEnd, "ResTable");
1652        if (err != NO_ERROR) {
1653            return (mError=err);
1654        }
1655        TABLE_NOISY(LOGV("Chunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
1656                     dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
1657                     (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
1658        const size_t csize = dtohl(chunk->size);
1659        const uint16_t ctype = dtohs(chunk->type);
1660        if (ctype == RES_STRING_POOL_TYPE) {
1661            if (header->values.getError() != NO_ERROR) {
1662                // Only use the first string chunk; ignore any others that
1663                // may appear.
1664                status_t err = header->values.setTo(chunk, csize);
1665                if (err != NO_ERROR) {
1666                    return (mError=err);
1667                }
1668            } else {
1669                LOGW("Multiple string chunks found in resource table.");
1670            }
1671        } else if (ctype == RES_TABLE_PACKAGE_TYPE) {
1672            if (curPackage >= dtohl(header->header->packageCount)) {
1673                LOGW("More package chunks were found than the %d declared in the header.",
1674                     dtohl(header->header->packageCount));
1675                return (mError=BAD_TYPE);
1676            }
1677            if (parsePackage((ResTable_package*)chunk, header) != NO_ERROR) {
1678                return mError;
1679            }
1680            curPackage++;
1681        } else {
1682            LOGW("Unknown chunk type %p in table at %p.\n",
1683                 (void*)(int)(ctype),
1684                 (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header)));
1685        }
1686        chunk = (const ResChunk_header*)
1687            (((const uint8_t*)chunk) + csize);
1688    }
1689
1690    if (curPackage < dtohl(header->header->packageCount)) {
1691        LOGW("Fewer package chunks (%d) were found than the %d declared in the header.",
1692             (int)curPackage, dtohl(header->header->packageCount));
1693        return (mError=BAD_TYPE);
1694    }
1695    mError = header->values.getError();
1696    if (mError != NO_ERROR) {
1697        LOGW("No string values found in resource table!");
1698    }
1699    TABLE_NOISY(LOGV("Returning from add with mError=%d\n", mError));
1700    return mError;
1701}
1702
1703status_t ResTable::getError() const
1704{
1705    return mError;
1706}
1707
1708void ResTable::uninit()
1709{
1710    mError = NO_INIT;
1711    size_t N = mPackageGroups.size();
1712    for (size_t i=0; i<N; i++) {
1713        PackageGroup* g = mPackageGroups[i];
1714        delete g;
1715    }
1716    N = mHeaders.size();
1717    for (size_t i=0; i<N; i++) {
1718        Header* header = mHeaders[i];
1719        if (header->owner == this) {
1720            if (header->ownedData) {
1721                free(header->ownedData);
1722            }
1723            delete header;
1724        }
1725    }
1726
1727    mPackageGroups.clear();
1728    mHeaders.clear();
1729}
1730
1731bool ResTable::getResourceName(uint32_t resID, resource_name* outName) const
1732{
1733    if (mError != NO_ERROR) {
1734        return false;
1735    }
1736
1737    const ssize_t p = getResourcePackageIndex(resID);
1738    const int t = Res_GETTYPE(resID);
1739    const int e = Res_GETENTRY(resID);
1740
1741    if (p < 0) {
1742        LOGW("No package identifier when getting name for resource number 0x%08x", resID);
1743        return false;
1744    }
1745    if (t < 0) {
1746        LOGW("No type identifier when getting name for resource number 0x%08x", resID);
1747        return false;
1748    }
1749
1750    const PackageGroup* const grp = mPackageGroups[p];
1751    if (grp == NULL) {
1752        LOGW("Bad identifier when getting name for resource number 0x%08x", resID);
1753        return false;
1754    }
1755    if (grp->packages.size() > 0) {
1756        const Package* const package = grp->packages[0];
1757
1758        const ResTable_type* type;
1759        const ResTable_entry* entry;
1760        ssize_t offset = getEntry(package, t, e, NULL, &type, &entry, NULL);
1761        if (offset <= 0) {
1762            return false;
1763        }
1764
1765        outName->package = grp->name.string();
1766        outName->packageLen = grp->name.size();
1767        outName->type = grp->basePackage->typeStrings.stringAt(t, &outName->typeLen);
1768        outName->name = grp->basePackage->keyStrings.stringAt(
1769            dtohl(entry->key.index), &outName->nameLen);
1770        return true;
1771    }
1772
1773    return false;
1774}
1775
1776ssize_t ResTable::getResource(uint32_t resID, Res_value* outValue, bool mayBeBag,
1777        uint32_t* outSpecFlags, ResTable_config* outConfig) const
1778{
1779    if (mError != NO_ERROR) {
1780        return mError;
1781    }
1782
1783    const ssize_t p = getResourcePackageIndex(resID);
1784    const int t = Res_GETTYPE(resID);
1785    const int e = Res_GETENTRY(resID);
1786
1787    if (p < 0) {
1788        LOGW("No package identifier when getting value for resource number 0x%08x", resID);
1789        return BAD_INDEX;
1790    }
1791    if (t < 0) {
1792        LOGW("No type identifier when getting value for resource number 0x%08x", resID);
1793        return BAD_INDEX;
1794    }
1795
1796    const Res_value* bestValue = NULL;
1797    const Package* bestPackage = NULL;
1798    ResTable_config bestItem;
1799    memset(&bestItem, 0, sizeof(bestItem)); // make the compiler shut up
1800
1801    if (outSpecFlags != NULL) *outSpecFlags = 0;
1802
1803    // Look through all resource packages, starting with the most
1804    // recently added.
1805    const PackageGroup* const grp = mPackageGroups[p];
1806    if (grp == NULL) {
1807        LOGW("Bad identifier when getting value for resource number 0x%08x", resID);
1808        return false;
1809    }
1810    size_t ip = grp->packages.size();
1811    while (ip > 0) {
1812        ip--;
1813
1814        const Package* const package = grp->packages[ip];
1815
1816        const ResTable_type* type;
1817        const ResTable_entry* entry;
1818        const Type* typeClass;
1819        ssize_t offset = getEntry(package, t, e, &mParams, &type, &entry, &typeClass);
1820        if (offset <= 0) {
1821            if (offset < 0) {
1822                LOGW("Failure getting entry for 0x%08x (t=%d e=%d) in package %d: 0x%08x\n",
1823                        resID, t, e, (int)ip, (int)offset);
1824                return offset;
1825            }
1826            continue;
1827        }
1828
1829        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) != 0) {
1830            if (!mayBeBag) {
1831                LOGW("Requesting resource %p failed because it is complex\n",
1832                     (void*)resID);
1833            }
1834            continue;
1835        }
1836
1837        TABLE_NOISY(aout << "Resource type data: "
1838              << HexDump(type, dtohl(type->header.size)) << endl);
1839
1840        if ((size_t)offset > (dtohl(type->header.size)-sizeof(Res_value))) {
1841            LOGW("ResTable_item at %d is beyond type chunk data %d",
1842                 (int)offset, dtohl(type->header.size));
1843            return BAD_TYPE;
1844        }
1845
1846        const Res_value* item =
1847            (const Res_value*)(((const uint8_t*)type) + offset);
1848        ResTable_config thisConfig;
1849        thisConfig.copyFromDtoH(type->config);
1850
1851        if (outSpecFlags != NULL) {
1852            if (typeClass->typeSpecFlags != NULL) {
1853                *outSpecFlags |= dtohl(typeClass->typeSpecFlags[e]);
1854            } else {
1855                *outSpecFlags = -1;
1856            }
1857        }
1858
1859        if (bestPackage != NULL && bestItem.isMoreSpecificThan(thisConfig)) {
1860            continue;
1861        }
1862
1863        bestItem = thisConfig;
1864        bestValue = item;
1865        bestPackage = package;
1866    }
1867
1868    TABLE_NOISY(printf("Found result: package %p\n", bestPackage));
1869
1870    if (bestValue) {
1871        outValue->size = dtohs(bestValue->size);
1872        outValue->res0 = bestValue->res0;
1873        outValue->dataType = bestValue->dataType;
1874        outValue->data = dtohl(bestValue->data);
1875        if (outConfig != NULL) {
1876            *outConfig = bestItem;
1877        }
1878        TABLE_NOISY(size_t len;
1879              printf("Found value: pkg=%d, type=%d, str=%s, int=%d\n",
1880                     bestPackage->header->index,
1881                     outValue->dataType,
1882                     outValue->dataType == bestValue->TYPE_STRING
1883                     ? String8(bestPackage->header->values.stringAt(
1884                         outValue->data, &len)).string()
1885                     : "",
1886                     outValue->data));
1887        return bestPackage->header->index;
1888    }
1889
1890    return BAD_INDEX;
1891}
1892
1893ssize_t ResTable::resolveReference(Res_value* value, ssize_t blockIndex,
1894        uint32_t* outLastRef, uint32_t* inoutTypeSpecFlags) const
1895{
1896    int count=0;
1897    while (blockIndex >= 0 && value->dataType == value->TYPE_REFERENCE
1898           && value->data != 0 && count < 20) {
1899        if (outLastRef) *outLastRef = value->data;
1900        uint32_t lastRef = value->data;
1901        uint32_t newFlags = 0;
1902        const ssize_t newIndex = getResource(value->data, value, true, &newFlags);
1903        //LOGI("Resolving reference d=%p: newIndex=%d, t=0x%02x, d=%p\n",
1904        //     (void*)lastRef, (int)newIndex, (int)value->dataType, (void*)value->data);
1905        //printf("Getting reference 0x%08x: newIndex=%d\n", value->data, newIndex);
1906        if (inoutTypeSpecFlags != NULL) *inoutTypeSpecFlags |= newFlags;
1907        if (newIndex < 0) {
1908            // This can fail if the resource being referenced is a style...
1909            // in this case, just return the reference, and expect the
1910            // caller to deal with.
1911            return blockIndex;
1912        }
1913        blockIndex = newIndex;
1914        count++;
1915    }
1916    return blockIndex;
1917}
1918
1919const char16_t* ResTable::valueToString(
1920    const Res_value* value, size_t stringBlock,
1921    char16_t tmpBuffer[TMP_BUFFER_SIZE], size_t* outLen)
1922{
1923    if (!value) {
1924        return NULL;
1925    }
1926    if (value->dataType == value->TYPE_STRING) {
1927        return getTableStringBlock(stringBlock)->stringAt(value->data, outLen);
1928    }
1929    // XXX do int to string conversions.
1930    return NULL;
1931}
1932
1933ssize_t ResTable::lockBag(uint32_t resID, const bag_entry** outBag) const
1934{
1935    mLock.lock();
1936    ssize_t err = getBagLocked(resID, outBag);
1937    if (err < NO_ERROR) {
1938        //printf("*** get failed!  unlocking\n");
1939        mLock.unlock();
1940    }
1941    return err;
1942}
1943
1944void ResTable::unlockBag(const bag_entry* bag) const
1945{
1946    //printf("<<< unlockBag %p\n", this);
1947    mLock.unlock();
1948}
1949
1950void ResTable::lock() const
1951{
1952    mLock.lock();
1953}
1954
1955void ResTable::unlock() const
1956{
1957    mLock.unlock();
1958}
1959
1960ssize_t ResTable::getBagLocked(uint32_t resID, const bag_entry** outBag,
1961        uint32_t* outTypeSpecFlags) const
1962{
1963    if (mError != NO_ERROR) {
1964        return mError;
1965    }
1966
1967    const ssize_t p = getResourcePackageIndex(resID);
1968    const int t = Res_GETTYPE(resID);
1969    const int e = Res_GETENTRY(resID);
1970
1971    if (p < 0) {
1972        LOGW("Invalid package identifier when getting bag for resource number 0x%08x", resID);
1973        return BAD_INDEX;
1974    }
1975    if (t < 0) {
1976        LOGW("No type identifier when getting bag for resource number 0x%08x", resID);
1977        return BAD_INDEX;
1978    }
1979
1980    //printf("Get bag: id=0x%08x, p=%d, t=%d\n", resID, p, t);
1981    PackageGroup* const grp = mPackageGroups[p];
1982    if (grp == NULL) {
1983        LOGW("Bad identifier when getting bag for resource number 0x%08x", resID);
1984        return false;
1985    }
1986
1987    if (t >= (int)grp->typeCount) {
1988        LOGW("Type identifier 0x%x is larger than type count 0x%x",
1989             t+1, (int)grp->typeCount);
1990        return BAD_INDEX;
1991    }
1992
1993    const Package* const basePackage = grp->packages[0];
1994
1995    const Type* const typeConfigs = basePackage->getType(t);
1996
1997    const size_t NENTRY = typeConfigs->entryCount;
1998    if (e >= (int)NENTRY) {
1999        LOGW("Entry identifier 0x%x is larger than entry count 0x%x",
2000             e, (int)typeConfigs->entryCount);
2001        return BAD_INDEX;
2002    }
2003
2004    // First see if we've already computed this bag...
2005    if (grp->bags) {
2006        bag_set** typeSet = grp->bags[t];
2007        if (typeSet) {
2008            bag_set* set = typeSet[e];
2009            if (set) {
2010                if (set != (bag_set*)0xFFFFFFFF) {
2011                    if (outTypeSpecFlags != NULL) {
2012                        *outTypeSpecFlags = set->typeSpecFlags;
2013                    }
2014                    *outBag = (bag_entry*)(set+1);
2015                    //LOGI("Found existing bag for: %p\n", (void*)resID);
2016                    return set->numAttrs;
2017                }
2018                LOGW("Attempt to retrieve bag 0x%08x which is invalid or in a cycle.",
2019                     resID);
2020                return BAD_INDEX;
2021            }
2022        }
2023    }
2024
2025    // Bag not found, we need to compute it!
2026    if (!grp->bags) {
2027        grp->bags = (bag_set***)malloc(sizeof(bag_set*)*grp->typeCount);
2028        if (!grp->bags) return NO_MEMORY;
2029        memset(grp->bags, 0, sizeof(bag_set*)*grp->typeCount);
2030    }
2031
2032    bag_set** typeSet = grp->bags[t];
2033    if (!typeSet) {
2034        typeSet = (bag_set**)malloc(sizeof(bag_set*)*NENTRY);
2035        if (!typeSet) return NO_MEMORY;
2036        memset(typeSet, 0, sizeof(bag_set*)*NENTRY);
2037        grp->bags[t] = typeSet;
2038    }
2039
2040    // Mark that we are currently working on this one.
2041    typeSet[e] = (bag_set*)0xFFFFFFFF;
2042
2043    // This is what we are building.
2044    bag_set* set = NULL;
2045
2046    TABLE_NOISY(LOGI("Building bag: %p\n", (void*)resID));
2047
2048    // Now collect all bag attributes from all packages.
2049    size_t ip = grp->packages.size();
2050    while (ip > 0) {
2051        ip--;
2052
2053        const Package* const package = grp->packages[ip];
2054
2055        const ResTable_type* type;
2056        const ResTable_entry* entry;
2057        const Type* typeClass;
2058        LOGV("Getting entry pkg=%p, t=%d, e=%d\n", package, t, e);
2059        ssize_t offset = getEntry(package, t, e, &mParams, &type, &entry, &typeClass);
2060        LOGV("Resulting offset=%d\n", offset);
2061        if (offset <= 0) {
2062            if (offset < 0) {
2063                if (set) free(set);
2064                return offset;
2065            }
2066            continue;
2067        }
2068
2069        if ((dtohs(entry->flags)&entry->FLAG_COMPLEX) == 0) {
2070            LOGW("Skipping entry %p in package table %d because it is not complex!\n",
2071                 (void*)resID, (int)ip);
2072            continue;
2073        }
2074
2075        const uint16_t entrySize = dtohs(entry->size);
2076        const uint32_t parent = entrySize >= sizeof(ResTable_map_entry)
2077            ? dtohl(((const ResTable_map_entry*)entry)->parent.ident) : 0;
2078        const uint32_t count = entrySize >= sizeof(ResTable_map_entry)
2079            ? dtohl(((const ResTable_map_entry*)entry)->count) : 0;
2080
2081        size_t N = count;
2082
2083        TABLE_NOISY(LOGI("Found map: size=%p parent=%p count=%d\n",
2084                         entrySize, parent, count));
2085
2086        if (set == NULL) {
2087            // If this map inherits from another, we need to start
2088            // with its parent's values.  Otherwise start out empty.
2089            TABLE_NOISY(printf("Creating new bag, entrySize=0x%08x, parent=0x%08x\n",
2090                         entrySize, parent));
2091            if (parent) {
2092                const bag_entry* parentBag;
2093                uint32_t parentTypeSpecFlags = 0;
2094                const ssize_t NP = getBagLocked(parent, &parentBag, &parentTypeSpecFlags);
2095                const size_t NT = ((NP >= 0) ? NP : 0) + N;
2096                set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*NT);
2097                if (set == NULL) {
2098                    return NO_MEMORY;
2099                }
2100                if (NP > 0) {
2101                    memcpy(set+1, parentBag, NP*sizeof(bag_entry));
2102                    set->numAttrs = NP;
2103                    TABLE_NOISY(LOGI("Initialized new bag with %d inherited attributes.\n", NP));
2104                } else {
2105                    TABLE_NOISY(LOGI("Initialized new bag with no inherited attributes.\n"));
2106                    set->numAttrs = 0;
2107                }
2108                set->availAttrs = NT;
2109                set->typeSpecFlags = parentTypeSpecFlags;
2110            } else {
2111                set = (bag_set*)malloc(sizeof(bag_set)+sizeof(bag_entry)*N);
2112                if (set == NULL) {
2113                    return NO_MEMORY;
2114                }
2115                set->numAttrs = 0;
2116                set->availAttrs = N;
2117                set->typeSpecFlags = 0;
2118            }
2119        }
2120
2121        if (typeClass->typeSpecFlags != NULL) {
2122            set->typeSpecFlags |= dtohl(typeClass->typeSpecFlags[e]);
2123        } else {
2124            set->typeSpecFlags = -1;
2125        }
2126
2127        // Now merge in the new attributes...
2128        ssize_t curOff = offset;
2129        const ResTable_map* map;
2130        bag_entry* entries = (bag_entry*)(set+1);
2131        size_t curEntry = 0;
2132        uint32_t pos = 0;
2133        TABLE_NOISY(LOGI("Starting with set %p, entries=%p, avail=%d\n",
2134                     set, entries, set->availAttrs));
2135        while (pos < count) {
2136            TABLE_NOISY(printf("Now at %p\n", (void*)curOff));
2137
2138            if ((size_t)curOff > (dtohl(type->header.size)-sizeof(ResTable_map))) {
2139                LOGW("ResTable_map at %d is beyond type chunk data %d",
2140                     (int)curOff, dtohl(type->header.size));
2141                return BAD_TYPE;
2142            }
2143            map = (const ResTable_map*)(((const uint8_t*)type) + curOff);
2144            N++;
2145
2146            const uint32_t newName = htodl(map->name.ident);
2147            bool isInside;
2148            uint32_t oldName = 0;
2149            while ((isInside=(curEntry < set->numAttrs))
2150                    && (oldName=entries[curEntry].map.name.ident) < newName) {
2151                TABLE_NOISY(printf("#%d: Keeping existing attribute: 0x%08x\n",
2152                             curEntry, entries[curEntry].map.name.ident));
2153                curEntry++;
2154            }
2155
2156            if ((!isInside) || oldName != newName) {
2157                // This is a new attribute...  figure out what to do with it.
2158                if (set->numAttrs >= set->availAttrs) {
2159                    // Need to alloc more memory...
2160                    const size_t newAvail = set->availAttrs+N;
2161                    set = (bag_set*)realloc(set,
2162                                            sizeof(bag_set)
2163                                            + sizeof(bag_entry)*newAvail);
2164                    if (set == NULL) {
2165                        return NO_MEMORY;
2166                    }
2167                    set->availAttrs = newAvail;
2168                    entries = (bag_entry*)(set+1);
2169                    TABLE_NOISY(printf("Reallocated set %p, entries=%p, avail=%d\n",
2170                                 set, entries, set->availAttrs));
2171                }
2172                if (isInside) {
2173                    // Going in the middle, need to make space.
2174                    memmove(entries+curEntry+1, entries+curEntry,
2175                            sizeof(bag_entry)*(set->numAttrs-curEntry));
2176                    set->numAttrs++;
2177                }
2178                TABLE_NOISY(printf("#%d: Inserting new attribute: 0x%08x\n",
2179                             curEntry, newName));
2180            } else {
2181                TABLE_NOISY(printf("#%d: Replacing existing attribute: 0x%08x\n",
2182                             curEntry, oldName));
2183            }
2184
2185            bag_entry* cur = entries+curEntry;
2186
2187            cur->stringBlock = package->header->index;
2188            cur->map.name.ident = newName;
2189            cur->map.value.copyFrom_dtoh(map->value);
2190            TABLE_NOISY(printf("Setting entry #%d %p: block=%d, name=0x%08x, type=%d, data=0x%08x\n",
2191                         curEntry, cur, cur->stringBlock, cur->map.name.ident,
2192                         cur->map.value.dataType, cur->map.value.data));
2193
2194            // On to the next!
2195            curEntry++;
2196            pos++;
2197            const size_t size = dtohs(map->value.size);
2198            curOff += size + sizeof(*map)-sizeof(map->value);
2199        };
2200        if (curEntry > set->numAttrs) {
2201            set->numAttrs = curEntry;
2202        }
2203    }
2204
2205    // And this is it...
2206    typeSet[e] = set;
2207    if (set) {
2208        if (outTypeSpecFlags != NULL) {
2209            *outTypeSpecFlags = set->typeSpecFlags;
2210        }
2211        *outBag = (bag_entry*)(set+1);
2212        TABLE_NOISY(LOGI("Returning %d attrs\n", set->numAttrs));
2213        return set->numAttrs;
2214    }
2215    return BAD_INDEX;
2216}
2217
2218void ResTable::setParameters(const ResTable_config* params)
2219{
2220    mLock.lock();
2221    TABLE_GETENTRY(LOGI("Setting parameters: imsi:%d/%d lang:%c%c cnt:%c%c "
2222                        "orien:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
2223                       params->mcc, params->mnc,
2224                       params->language[0] ? params->language[0] : '-',
2225                       params->language[1] ? params->language[1] : '-',
2226                       params->country[0] ? params->country[0] : '-',
2227                       params->country[1] ? params->country[1] : '-',
2228                       params->orientation,
2229                       params->touchscreen,
2230                       params->density,
2231                       params->keyboard,
2232                       params->inputFlags,
2233                       params->navigation,
2234                       params->screenWidth,
2235                       params->screenHeight));
2236    mParams = *params;
2237    for (size_t i=0; i<mPackageGroups.size(); i++) {
2238        TABLE_NOISY(LOGI("CLEARING BAGS FOR GROUP %d!", i));
2239        mPackageGroups[i]->clearBagCache();
2240    }
2241    mLock.unlock();
2242}
2243
2244void ResTable::getParameters(ResTable_config* params) const
2245{
2246    mLock.lock();
2247    *params = mParams;
2248    mLock.unlock();
2249}
2250
2251struct id_name_map {
2252    uint32_t id;
2253    size_t len;
2254    char16_t name[6];
2255};
2256
2257const static id_name_map ID_NAMES[] = {
2258    { ResTable_map::ATTR_TYPE,  5, { '^', 't', 'y', 'p', 'e' } },
2259    { ResTable_map::ATTR_L10N,  5, { '^', 'l', '1', '0', 'n' } },
2260    { ResTable_map::ATTR_MIN,   4, { '^', 'm', 'i', 'n' } },
2261    { ResTable_map::ATTR_MAX,   4, { '^', 'm', 'a', 'x' } },
2262    { ResTable_map::ATTR_OTHER, 6, { '^', 'o', 't', 'h', 'e', 'r' } },
2263    { ResTable_map::ATTR_ZERO,  5, { '^', 'z', 'e', 'r', 'o' } },
2264    { ResTable_map::ATTR_ONE,   4, { '^', 'o', 'n', 'e' } },
2265    { ResTable_map::ATTR_TWO,   4, { '^', 't', 'w', 'o' } },
2266    { ResTable_map::ATTR_FEW,   4, { '^', 'f', 'e', 'w' } },
2267    { ResTable_map::ATTR_MANY,  5, { '^', 'm', 'a', 'n', 'y' } },
2268};
2269
2270uint32_t ResTable::identifierForName(const char16_t* name, size_t nameLen,
2271                                     const char16_t* type, size_t typeLen,
2272                                     const char16_t* package,
2273                                     size_t packageLen,
2274                                     uint32_t* outTypeSpecFlags) const
2275{
2276    TABLE_SUPER_NOISY(printf("Identifier for name: error=%d\n", mError));
2277
2278    // Check for internal resource identifier as the very first thing, so
2279    // that we will always find them even when there are no resources.
2280    if (name[0] == '^') {
2281        const int N = (sizeof(ID_NAMES)/sizeof(ID_NAMES[0]));
2282        size_t len;
2283        for (int i=0; i<N; i++) {
2284            const id_name_map* m = ID_NAMES + i;
2285            len = m->len;
2286            if (len != nameLen) {
2287                continue;
2288            }
2289            for (size_t j=1; j<len; j++) {
2290                if (m->name[j] != name[j]) {
2291                    goto nope;
2292                }
2293            }
2294            return m->id;
2295nope:
2296            ;
2297        }
2298        if (nameLen > 7) {
2299            if (name[1] == 'i' && name[2] == 'n'
2300                && name[3] == 'd' && name[4] == 'e' && name[5] == 'x'
2301                && name[6] == '_') {
2302                int index = atoi(String8(name + 7, nameLen - 7).string());
2303                if (Res_CHECKID(index)) {
2304                    LOGW("Array resource index: %d is too large.",
2305                         index);
2306                    return 0;
2307                }
2308                return  Res_MAKEARRAY(index);
2309            }
2310        }
2311        return 0;
2312    }
2313
2314    if (mError != NO_ERROR) {
2315        return 0;
2316    }
2317
2318    // Figure out the package and type we are looking in...
2319
2320    const char16_t* packageEnd = NULL;
2321    const char16_t* typeEnd = NULL;
2322    const char16_t* const nameEnd = name+nameLen;
2323    const char16_t* p = name;
2324    while (p < nameEnd) {
2325        if (*p == ':') packageEnd = p;
2326        else if (*p == '/') typeEnd = p;
2327        p++;
2328    }
2329    if (*name == '@') name++;
2330    if (name >= nameEnd) {
2331        return 0;
2332    }
2333
2334    if (packageEnd) {
2335        package = name;
2336        packageLen = packageEnd-name;
2337        name = packageEnd+1;
2338    } else if (!package) {
2339        return 0;
2340    }
2341
2342    if (typeEnd) {
2343        type = name;
2344        typeLen = typeEnd-name;
2345        name = typeEnd+1;
2346    } else if (!type) {
2347        return 0;
2348    }
2349
2350    if (name >= nameEnd) {
2351        return 0;
2352    }
2353    nameLen = nameEnd-name;
2354
2355    TABLE_NOISY(printf("Looking for identifier: type=%s, name=%s, package=%s\n",
2356                 String8(type, typeLen).string(),
2357                 String8(name, nameLen).string(),
2358                 String8(package, packageLen).string()));
2359
2360    const size_t NG = mPackageGroups.size();
2361    for (size_t ig=0; ig<NG; ig++) {
2362        const PackageGroup* group = mPackageGroups[ig];
2363
2364        if (strzcmp16(package, packageLen,
2365                      group->name.string(), group->name.size())) {
2366            TABLE_NOISY(printf("Skipping package group: %s\n", String8(group->name).string()));
2367            continue;
2368        }
2369
2370        const ssize_t ti = group->basePackage->typeStrings.indexOfString(type, typeLen);
2371        if (ti < 0) {
2372            TABLE_NOISY(printf("Type not found in package %s\n", String8(group->name).string()));
2373            continue;
2374        }
2375
2376        const ssize_t ei = group->basePackage->keyStrings.indexOfString(name, nameLen);
2377        if (ei < 0) {
2378            TABLE_NOISY(printf("Name not found in package %s\n", String8(group->name).string()));
2379            continue;
2380        }
2381
2382        TABLE_NOISY(printf("Search indices: type=%d, name=%d\n", ti, ei));
2383
2384        const Type* const typeConfigs = group->packages[0]->getType(ti);
2385        if (typeConfigs == NULL || typeConfigs->configs.size() <= 0) {
2386            TABLE_NOISY(printf("Expected type structure not found in package %s for idnex %d\n",
2387                               String8(group->name).string(), ti));
2388        }
2389
2390        size_t NTC = typeConfigs->configs.size();
2391        for (size_t tci=0; tci<NTC; tci++) {
2392            const ResTable_type* const ty = typeConfigs->configs[tci];
2393            const uint32_t typeOffset = dtohl(ty->entriesStart);
2394
2395            const uint8_t* const end = ((const uint8_t*)ty) + dtohl(ty->header.size);
2396            const uint32_t* const eindex = (const uint32_t*)
2397                (((const uint8_t*)ty) + dtohs(ty->header.headerSize));
2398
2399            const size_t NE = dtohl(ty->entryCount);
2400            for (size_t i=0; i<NE; i++) {
2401                uint32_t offset = dtohl(eindex[i]);
2402                if (offset == ResTable_type::NO_ENTRY) {
2403                    continue;
2404                }
2405
2406                offset += typeOffset;
2407
2408                if (offset > (dtohl(ty->header.size)-sizeof(ResTable_entry))) {
2409                    LOGW("ResTable_entry at %d is beyond type chunk data %d",
2410                         offset, dtohl(ty->header.size));
2411                    return 0;
2412                }
2413                if ((offset&0x3) != 0) {
2414                    LOGW("ResTable_entry at %d (pkg=%d type=%d ent=%d) is not on an integer boundary when looking for %s:%s/%s",
2415                         (int)offset, (int)group->id, (int)ti+1, (int)i,
2416                         String8(package, packageLen).string(),
2417                         String8(type, typeLen).string(),
2418                         String8(name, nameLen).string());
2419                    return 0;
2420                }
2421
2422                const ResTable_entry* const entry = (const ResTable_entry*)
2423                    (((const uint8_t*)ty) + offset);
2424                if (dtohs(entry->size) < sizeof(*entry)) {
2425                    LOGW("ResTable_entry size %d is too small", dtohs(entry->size));
2426                    return BAD_TYPE;
2427                }
2428
2429                TABLE_SUPER_NOISY(printf("Looking at entry #%d: want str %d, have %d\n",
2430                                         i, ei, dtohl(entry->key.index)));
2431                if (dtohl(entry->key.index) == (size_t)ei) {
2432                    if (outTypeSpecFlags) {
2433                        *outTypeSpecFlags = typeConfigs->typeSpecFlags[i];
2434                    }
2435                    return Res_MAKEID(group->id-1, ti, i);
2436                }
2437            }
2438        }
2439    }
2440
2441    return 0;
2442}
2443
2444bool ResTable::expandResourceRef(const uint16_t* refStr, size_t refLen,
2445                                 String16* outPackage,
2446                                 String16* outType,
2447                                 String16* outName,
2448                                 const String16* defType,
2449                                 const String16* defPackage,
2450                                 const char** outErrorMsg)
2451{
2452    const char16_t* packageEnd = NULL;
2453    const char16_t* typeEnd = NULL;
2454    const char16_t* p = refStr;
2455    const char16_t* const end = p + refLen;
2456    while (p < end) {
2457        if (*p == ':') packageEnd = p;
2458        else if (*p == '/') {
2459            typeEnd = p;
2460            break;
2461        }
2462        p++;
2463    }
2464    p = refStr;
2465    if (*p == '@') p++;
2466
2467    if (packageEnd) {
2468        *outPackage = String16(p, packageEnd-p);
2469        p = packageEnd+1;
2470    } else {
2471        if (!defPackage) {
2472            if (outErrorMsg) {
2473                *outErrorMsg = "No resource package specified";
2474            }
2475            return false;
2476        }
2477        *outPackage = *defPackage;
2478    }
2479    if (typeEnd) {
2480        *outType = String16(p, typeEnd-p);
2481        p = typeEnd+1;
2482    } else {
2483        if (!defType) {
2484            if (outErrorMsg) {
2485                *outErrorMsg = "No resource type specified";
2486            }
2487            return false;
2488        }
2489        *outType = *defType;
2490    }
2491    *outName = String16(p, end-p);
2492    return true;
2493}
2494
2495static uint32_t get_hex(char c, bool* outError)
2496{
2497    if (c >= '0' && c <= '9') {
2498        return c - '0';
2499    } else if (c >= 'a' && c <= 'f') {
2500        return c - 'a' + 0xa;
2501    } else if (c >= 'A' && c <= 'F') {
2502        return c - 'A' + 0xa;
2503    }
2504    *outError = true;
2505    return 0;
2506}
2507
2508struct unit_entry
2509{
2510    const char* name;
2511    size_t len;
2512    uint8_t type;
2513    uint32_t unit;
2514    float scale;
2515};
2516
2517static const unit_entry unitNames[] = {
2518    { "px", strlen("px"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PX, 1.0f },
2519    { "dip", strlen("dip"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
2520    { "dp", strlen("dp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_DIP, 1.0f },
2521    { "sp", strlen("sp"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_SP, 1.0f },
2522    { "pt", strlen("pt"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_PT, 1.0f },
2523    { "in", strlen("in"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_IN, 1.0f },
2524    { "mm", strlen("mm"), Res_value::TYPE_DIMENSION, Res_value::COMPLEX_UNIT_MM, 1.0f },
2525    { "%", strlen("%"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION, 1.0f/100 },
2526    { "%p", strlen("%p"), Res_value::TYPE_FRACTION, Res_value::COMPLEX_UNIT_FRACTION_PARENT, 1.0f/100 },
2527    { NULL, 0, 0, 0, 0 }
2528};
2529
2530static bool parse_unit(const char* str, Res_value* outValue,
2531                       float* outScale, const char** outEnd)
2532{
2533    const char* end = str;
2534    while (*end != 0 && !isspace((unsigned char)*end)) {
2535        end++;
2536    }
2537    const size_t len = end-str;
2538
2539    const char* realEnd = end;
2540    while (*realEnd != 0 && isspace((unsigned char)*realEnd)) {
2541        realEnd++;
2542    }
2543    if (*realEnd != 0) {
2544        return false;
2545    }
2546
2547    const unit_entry* cur = unitNames;
2548    while (cur->name) {
2549        if (len == cur->len && strncmp(cur->name, str, len) == 0) {
2550            outValue->dataType = cur->type;
2551            outValue->data = cur->unit << Res_value::COMPLEX_UNIT_SHIFT;
2552            *outScale = cur->scale;
2553            *outEnd = end;
2554            //printf("Found unit %s for %s\n", cur->name, str);
2555            return true;
2556        }
2557        cur++;
2558    }
2559
2560    return false;
2561}
2562
2563
2564bool ResTable::stringToInt(const char16_t* s, size_t len, Res_value* outValue)
2565{
2566    while (len > 0 && isspace16(*s)) {
2567        s++;
2568        len--;
2569    }
2570
2571    if (len <= 0) {
2572        return false;
2573    }
2574
2575    size_t i = 0;
2576    int32_t val = 0;
2577    bool neg = false;
2578
2579    if (*s == '-') {
2580        neg = true;
2581        i++;
2582    }
2583
2584    if (s[i] < '0' || s[i] > '9') {
2585        return false;
2586    }
2587
2588    // Decimal or hex?
2589    if (s[i] == '0' && s[i+1] == 'x') {
2590        if (outValue)
2591            outValue->dataType = outValue->TYPE_INT_HEX;
2592        i += 2;
2593        bool error = false;
2594        while (i < len && !error) {
2595            val = (val*16) + get_hex(s[i], &error);
2596            i++;
2597        }
2598        if (error) {
2599            return false;
2600        }
2601    } else {
2602        if (outValue)
2603            outValue->dataType = outValue->TYPE_INT_DEC;
2604        while (i < len) {
2605            if (s[i] < '0' || s[i] > '9') {
2606                return false;
2607            }
2608            val = (val*10) + s[i]-'0';
2609            i++;
2610        }
2611    }
2612
2613    if (neg) val = -val;
2614
2615    while (i < len && isspace16(s[i])) {
2616        i++;
2617    }
2618
2619    if (i == len) {
2620        if (outValue)
2621            outValue->data = val;
2622        return true;
2623    }
2624
2625    return false;
2626}
2627
2628bool ResTable::stringToFloat(const char16_t* s, size_t len, Res_value* outValue)
2629{
2630    while (len > 0 && isspace16(*s)) {
2631        s++;
2632        len--;
2633    }
2634
2635    if (len <= 0) {
2636        return false;
2637    }
2638
2639    char buf[128];
2640    int i=0;
2641    while (len > 0 && *s != 0 && i < 126) {
2642        if (*s > 255) {
2643            return false;
2644        }
2645        buf[i++] = *s++;
2646        len--;
2647    }
2648
2649    if (len > 0) {
2650        return false;
2651    }
2652    if (buf[0] < '0' && buf[0] > '9' && buf[0] != '.') {
2653        return false;
2654    }
2655
2656    buf[i] = 0;
2657    const char* end;
2658    float f = strtof(buf, (char**)&end);
2659
2660    if (*end != 0 && !isspace((unsigned char)*end)) {
2661        // Might be a unit...
2662        float scale;
2663        if (parse_unit(end, outValue, &scale, &end)) {
2664            f *= scale;
2665            const bool neg = f < 0;
2666            if (neg) f = -f;
2667            uint64_t bits = (uint64_t)(f*(1<<23)+.5f);
2668            uint32_t radix;
2669            uint32_t shift;
2670            if ((bits&0x7fffff) == 0) {
2671                // Always use 23p0 if there is no fraction, just to make
2672                // things easier to read.
2673                radix = Res_value::COMPLEX_RADIX_23p0;
2674                shift = 23;
2675            } else if ((bits&0xffffffffff800000LL) == 0) {
2676                // Magnitude is zero -- can fit in 0 bits of precision.
2677                radix = Res_value::COMPLEX_RADIX_0p23;
2678                shift = 0;
2679            } else if ((bits&0xffffffff80000000LL) == 0) {
2680                // Magnitude can fit in 8 bits of precision.
2681                radix = Res_value::COMPLEX_RADIX_8p15;
2682                shift = 8;
2683            } else if ((bits&0xffffff8000000000LL) == 0) {
2684                // Magnitude can fit in 16 bits of precision.
2685                radix = Res_value::COMPLEX_RADIX_16p7;
2686                shift = 16;
2687            } else {
2688                // Magnitude needs entire range, so no fractional part.
2689                radix = Res_value::COMPLEX_RADIX_23p0;
2690                shift = 23;
2691            }
2692            int32_t mantissa = (int32_t)(
2693                (bits>>shift) & Res_value::COMPLEX_MANTISSA_MASK);
2694            if (neg) {
2695                mantissa = (-mantissa) & Res_value::COMPLEX_MANTISSA_MASK;
2696            }
2697            outValue->data |=
2698                (radix<<Res_value::COMPLEX_RADIX_SHIFT)
2699                | (mantissa<<Res_value::COMPLEX_MANTISSA_SHIFT);
2700            //printf("Input value: %f 0x%016Lx, mult: %f, radix: %d, shift: %d, final: 0x%08x\n",
2701            //       f * (neg ? -1 : 1), bits, f*(1<<23),
2702            //       radix, shift, outValue->data);
2703            return true;
2704        }
2705        return false;
2706    }
2707
2708    while (*end != 0 && isspace((unsigned char)*end)) {
2709        end++;
2710    }
2711
2712    if (*end == 0) {
2713        if (outValue) {
2714            outValue->dataType = outValue->TYPE_FLOAT;
2715            *(float*)(&outValue->data) = f;
2716            return true;
2717        }
2718    }
2719
2720    return false;
2721}
2722
2723bool ResTable::stringToValue(Res_value* outValue, String16* outString,
2724                             const char16_t* s, size_t len,
2725                             bool preserveSpaces, bool coerceType,
2726                             uint32_t attrID,
2727                             const String16* defType,
2728                             const String16* defPackage,
2729                             Accessor* accessor,
2730                             void* accessorCookie,
2731                             uint32_t attrType,
2732                             bool enforcePrivate) const
2733{
2734    bool localizationSetting = accessor != NULL && accessor->getLocalizationSetting();
2735    const char* errorMsg = NULL;
2736
2737    outValue->size = sizeof(Res_value);
2738    outValue->res0 = 0;
2739
2740    // First strip leading/trailing whitespace.  Do this before handling
2741    // escapes, so they can be used to force whitespace into the string.
2742    if (!preserveSpaces) {
2743        while (len > 0 && isspace16(*s)) {
2744            s++;
2745            len--;
2746        }
2747        while (len > 0 && isspace16(s[len-1])) {
2748            len--;
2749        }
2750        // If the string ends with '\', then we keep the space after it.
2751        if (len > 0 && s[len-1] == '\\' && s[len] != 0) {
2752            len++;
2753        }
2754    }
2755
2756    //printf("Value for: %s\n", String8(s, len).string());
2757
2758    uint32_t l10nReq = ResTable_map::L10N_NOT_REQUIRED;
2759    uint32_t attrMin = 0x80000000, attrMax = 0x7fffffff;
2760    bool fromAccessor = false;
2761    if (attrID != 0 && !Res_INTERNALID(attrID)) {
2762        const ssize_t p = getResourcePackageIndex(attrID);
2763        const bag_entry* bag;
2764        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
2765        //printf("For attr 0x%08x got bag of %d\n", attrID, cnt);
2766        if (cnt >= 0) {
2767            while (cnt > 0) {
2768                //printf("Entry 0x%08x = 0x%08x\n", bag->map.name.ident, bag->map.value.data);
2769                switch (bag->map.name.ident) {
2770                case ResTable_map::ATTR_TYPE:
2771                    attrType = bag->map.value.data;
2772                    break;
2773                case ResTable_map::ATTR_MIN:
2774                    attrMin = bag->map.value.data;
2775                    break;
2776                case ResTable_map::ATTR_MAX:
2777                    attrMax = bag->map.value.data;
2778                    break;
2779                case ResTable_map::ATTR_L10N:
2780                    l10nReq = bag->map.value.data;
2781                    break;
2782                }
2783                bag++;
2784                cnt--;
2785            }
2786            unlockBag(bag);
2787        } else if (accessor && accessor->getAttributeType(attrID, &attrType)) {
2788            fromAccessor = true;
2789            if (attrType == ResTable_map::TYPE_ENUM
2790                    || attrType == ResTable_map::TYPE_FLAGS
2791                    || attrType == ResTable_map::TYPE_INTEGER) {
2792                accessor->getAttributeMin(attrID, &attrMin);
2793                accessor->getAttributeMax(attrID, &attrMax);
2794            }
2795            if (localizationSetting) {
2796                l10nReq = accessor->getAttributeL10N(attrID);
2797            }
2798        }
2799    }
2800
2801    const bool canStringCoerce =
2802        coerceType && (attrType&ResTable_map::TYPE_STRING) != 0;
2803
2804    if (*s == '@') {
2805        outValue->dataType = outValue->TYPE_REFERENCE;
2806
2807        // Note: we don't check attrType here because the reference can
2808        // be to any other type; we just need to count on the client making
2809        // sure the referenced type is correct.
2810
2811        //printf("Looking up ref: %s\n", String8(s, len).string());
2812
2813        // It's a reference!
2814        if (len == 5 && s[1]=='n' && s[2]=='u' && s[3]=='l' && s[4]=='l') {
2815            outValue->data = 0;
2816            return true;
2817        } else {
2818            bool createIfNotFound = false;
2819            const char16_t* resourceRefName;
2820            int resourceNameLen;
2821            if (len > 2 && s[1] == '+') {
2822                createIfNotFound = true;
2823                resourceRefName = s + 2;
2824                resourceNameLen = len - 2;
2825            } else if (len > 2 && s[1] == '*') {
2826                enforcePrivate = false;
2827                resourceRefName = s + 2;
2828                resourceNameLen = len - 2;
2829            } else {
2830                createIfNotFound = false;
2831                resourceRefName = s + 1;
2832                resourceNameLen = len - 1;
2833            }
2834            String16 package, type, name;
2835            if (!expandResourceRef(resourceRefName,resourceNameLen, &package, &type, &name,
2836                                   defType, defPackage, &errorMsg)) {
2837                if (accessor != NULL) {
2838                    accessor->reportError(accessorCookie, errorMsg);
2839                }
2840                return false;
2841            }
2842
2843            uint32_t specFlags = 0;
2844            uint32_t rid = identifierForName(name.string(), name.size(), type.string(),
2845                    type.size(), package.string(), package.size(), &specFlags);
2846            if (rid != 0) {
2847                if (enforcePrivate) {
2848                    if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
2849                        if (accessor != NULL) {
2850                            accessor->reportError(accessorCookie, "Resource is not public.");
2851                        }
2852                        return false;
2853                    }
2854                }
2855                if (!accessor) {
2856                    outValue->data = rid;
2857                    return true;
2858                }
2859                rid = Res_MAKEID(
2860                    accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
2861                    Res_GETTYPE(rid), Res_GETENTRY(rid));
2862                TABLE_NOISY(printf("Incl %s:%s/%s: 0x%08x\n",
2863                       String8(package).string(), String8(type).string(),
2864                       String8(name).string(), rid));
2865                outValue->data = rid;
2866                return true;
2867            }
2868
2869            if (accessor) {
2870                uint32_t rid = accessor->getCustomResourceWithCreation(package, type, name,
2871                                                                       createIfNotFound);
2872                if (rid != 0) {
2873                    TABLE_NOISY(printf("Pckg %s:%s/%s: 0x%08x\n",
2874                           String8(package).string(), String8(type).string(),
2875                           String8(name).string(), rid));
2876                    outValue->data = rid;
2877                    return true;
2878                }
2879            }
2880        }
2881
2882        if (accessor != NULL) {
2883            accessor->reportError(accessorCookie, "No resource found that matches the given name");
2884        }
2885        return false;
2886    }
2887
2888    // if we got to here, and localization is required and it's not a reference,
2889    // complain and bail.
2890    if (l10nReq == ResTable_map::L10N_SUGGESTED) {
2891        if (localizationSetting) {
2892            if (accessor != NULL) {
2893                accessor->reportError(accessorCookie, "This attribute must be localized.");
2894            }
2895        }
2896    }
2897
2898    if (*s == '#') {
2899        // It's a color!  Convert to an integer of the form 0xaarrggbb.
2900        uint32_t color = 0;
2901        bool error = false;
2902        if (len == 4) {
2903            outValue->dataType = outValue->TYPE_INT_COLOR_RGB4;
2904            color |= 0xFF000000;
2905            color |= get_hex(s[1], &error) << 20;
2906            color |= get_hex(s[1], &error) << 16;
2907            color |= get_hex(s[2], &error) << 12;
2908            color |= get_hex(s[2], &error) << 8;
2909            color |= get_hex(s[3], &error) << 4;
2910            color |= get_hex(s[3], &error);
2911        } else if (len == 5) {
2912            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB4;
2913            color |= get_hex(s[1], &error) << 28;
2914            color |= get_hex(s[1], &error) << 24;
2915            color |= get_hex(s[2], &error) << 20;
2916            color |= get_hex(s[2], &error) << 16;
2917            color |= get_hex(s[3], &error) << 12;
2918            color |= get_hex(s[3], &error) << 8;
2919            color |= get_hex(s[4], &error) << 4;
2920            color |= get_hex(s[4], &error);
2921        } else if (len == 7) {
2922            outValue->dataType = outValue->TYPE_INT_COLOR_RGB8;
2923            color |= 0xFF000000;
2924            color |= get_hex(s[1], &error) << 20;
2925            color |= get_hex(s[2], &error) << 16;
2926            color |= get_hex(s[3], &error) << 12;
2927            color |= get_hex(s[4], &error) << 8;
2928            color |= get_hex(s[5], &error) << 4;
2929            color |= get_hex(s[6], &error);
2930        } else if (len == 9) {
2931            outValue->dataType = outValue->TYPE_INT_COLOR_ARGB8;
2932            color |= get_hex(s[1], &error) << 28;
2933            color |= get_hex(s[2], &error) << 24;
2934            color |= get_hex(s[3], &error) << 20;
2935            color |= get_hex(s[4], &error) << 16;
2936            color |= get_hex(s[5], &error) << 12;
2937            color |= get_hex(s[6], &error) << 8;
2938            color |= get_hex(s[7], &error) << 4;
2939            color |= get_hex(s[8], &error);
2940        } else {
2941            error = true;
2942        }
2943        if (!error) {
2944            if ((attrType&ResTable_map::TYPE_COLOR) == 0) {
2945                if (!canStringCoerce) {
2946                    if (accessor != NULL) {
2947                        accessor->reportError(accessorCookie,
2948                                "Color types not allowed");
2949                    }
2950                    return false;
2951                }
2952            } else {
2953                outValue->data = color;
2954                //printf("Color input=%s, output=0x%x\n", String8(s, len).string(), color);
2955                return true;
2956            }
2957        } else {
2958            if ((attrType&ResTable_map::TYPE_COLOR) != 0) {
2959                if (accessor != NULL) {
2960                    accessor->reportError(accessorCookie, "Color value not valid --"
2961                            " must be #rgb, #argb, #rrggbb, or #aarrggbb");
2962                }
2963                #if 0
2964                fprintf(stderr, "%s: Color ID %s value %s is not valid\n",
2965                        "Resource File", //(const char*)in->getPrintableSource(),
2966                        String8(*curTag).string(),
2967                        String8(s, len).string());
2968                #endif
2969                return false;
2970            }
2971        }
2972    }
2973
2974    if (*s == '?') {
2975        outValue->dataType = outValue->TYPE_ATTRIBUTE;
2976
2977        // Note: we don't check attrType here because the reference can
2978        // be to any other type; we just need to count on the client making
2979        // sure the referenced type is correct.
2980
2981        //printf("Looking up attr: %s\n", String8(s, len).string());
2982
2983        static const String16 attr16("attr");
2984        String16 package, type, name;
2985        if (!expandResourceRef(s+1, len-1, &package, &type, &name,
2986                               &attr16, defPackage, &errorMsg)) {
2987            if (accessor != NULL) {
2988                accessor->reportError(accessorCookie, errorMsg);
2989            }
2990            return false;
2991        }
2992
2993        //printf("Pkg: %s, Type: %s, Name: %s\n",
2994        //       String8(package).string(), String8(type).string(),
2995        //       String8(name).string());
2996        uint32_t specFlags = 0;
2997        uint32_t rid =
2998            identifierForName(name.string(), name.size(),
2999                              type.string(), type.size(),
3000                              package.string(), package.size(), &specFlags);
3001        if (rid != 0) {
3002            if (enforcePrivate) {
3003                if ((specFlags&ResTable_typeSpec::SPEC_PUBLIC) == 0) {
3004                    if (accessor != NULL) {
3005                        accessor->reportError(accessorCookie, "Attribute is not public.");
3006                    }
3007                    return false;
3008                }
3009            }
3010            if (!accessor) {
3011                outValue->data = rid;
3012                return true;
3013            }
3014            rid = Res_MAKEID(
3015                accessor->getRemappedPackage(Res_GETPACKAGE(rid)),
3016                Res_GETTYPE(rid), Res_GETENTRY(rid));
3017            //printf("Incl %s:%s/%s: 0x%08x\n",
3018            //       String8(package).string(), String8(type).string(),
3019            //       String8(name).string(), rid);
3020            outValue->data = rid;
3021            return true;
3022        }
3023
3024        if (accessor) {
3025            uint32_t rid = accessor->getCustomResource(package, type, name);
3026            if (rid != 0) {
3027                //printf("Mine %s:%s/%s: 0x%08x\n",
3028                //       String8(package).string(), String8(type).string(),
3029                //       String8(name).string(), rid);
3030                outValue->data = rid;
3031                return true;
3032            }
3033        }
3034
3035        if (accessor != NULL) {
3036            accessor->reportError(accessorCookie, "No resource found that matches the given name");
3037        }
3038        return false;
3039    }
3040
3041    if (stringToInt(s, len, outValue)) {
3042        if ((attrType&ResTable_map::TYPE_INTEGER) == 0) {
3043            // If this type does not allow integers, but does allow floats,
3044            // fall through on this error case because the float type should
3045            // be able to accept any integer value.
3046            if (!canStringCoerce && (attrType&ResTable_map::TYPE_FLOAT) == 0) {
3047                if (accessor != NULL) {
3048                    accessor->reportError(accessorCookie, "Integer types not allowed");
3049                }
3050                return false;
3051            }
3052        } else {
3053            if (((int32_t)outValue->data) < ((int32_t)attrMin)
3054                    || ((int32_t)outValue->data) > ((int32_t)attrMax)) {
3055                if (accessor != NULL) {
3056                    accessor->reportError(accessorCookie, "Integer value out of range");
3057                }
3058                return false;
3059            }
3060            return true;
3061        }
3062    }
3063
3064    if (stringToFloat(s, len, outValue)) {
3065        if (outValue->dataType == Res_value::TYPE_DIMENSION) {
3066            if ((attrType&ResTable_map::TYPE_DIMENSION) != 0) {
3067                return true;
3068            }
3069            if (!canStringCoerce) {
3070                if (accessor != NULL) {
3071                    accessor->reportError(accessorCookie, "Dimension types not allowed");
3072                }
3073                return false;
3074            }
3075        } else if (outValue->dataType == Res_value::TYPE_FRACTION) {
3076            if ((attrType&ResTable_map::TYPE_FRACTION) != 0) {
3077                return true;
3078            }
3079            if (!canStringCoerce) {
3080                if (accessor != NULL) {
3081                    accessor->reportError(accessorCookie, "Fraction types not allowed");
3082                }
3083                return false;
3084            }
3085        } else if ((attrType&ResTable_map::TYPE_FLOAT) == 0) {
3086            if (!canStringCoerce) {
3087                if (accessor != NULL) {
3088                    accessor->reportError(accessorCookie, "Float types not allowed");
3089                }
3090                return false;
3091            }
3092        } else {
3093            return true;
3094        }
3095    }
3096
3097    if (len == 4) {
3098        if ((s[0] == 't' || s[0] == 'T') &&
3099            (s[1] == 'r' || s[1] == 'R') &&
3100            (s[2] == 'u' || s[2] == 'U') &&
3101            (s[3] == 'e' || s[3] == 'E')) {
3102            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
3103                if (!canStringCoerce) {
3104                    if (accessor != NULL) {
3105                        accessor->reportError(accessorCookie, "Boolean types not allowed");
3106                    }
3107                    return false;
3108                }
3109            } else {
3110                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
3111                outValue->data = (uint32_t)-1;
3112                return true;
3113            }
3114        }
3115    }
3116
3117    if (len == 5) {
3118        if ((s[0] == 'f' || s[0] == 'F') &&
3119            (s[1] == 'a' || s[1] == 'A') &&
3120            (s[2] == 'l' || s[2] == 'L') &&
3121            (s[3] == 's' || s[3] == 'S') &&
3122            (s[4] == 'e' || s[4] == 'E')) {
3123            if ((attrType&ResTable_map::TYPE_BOOLEAN) == 0) {
3124                if (!canStringCoerce) {
3125                    if (accessor != NULL) {
3126                        accessor->reportError(accessorCookie, "Boolean types not allowed");
3127                    }
3128                    return false;
3129                }
3130            } else {
3131                outValue->dataType = outValue->TYPE_INT_BOOLEAN;
3132                outValue->data = 0;
3133                return true;
3134            }
3135        }
3136    }
3137
3138    if ((attrType&ResTable_map::TYPE_ENUM) != 0) {
3139        const ssize_t p = getResourcePackageIndex(attrID);
3140        const bag_entry* bag;
3141        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
3142        //printf("Got %d for enum\n", cnt);
3143        if (cnt >= 0) {
3144            resource_name rname;
3145            while (cnt > 0) {
3146                if (!Res_INTERNALID(bag->map.name.ident)) {
3147                    //printf("Trying attr #%08x\n", bag->map.name.ident);
3148                    if (getResourceName(bag->map.name.ident, &rname)) {
3149                        #if 0
3150                        printf("Matching %s against %s (0x%08x)\n",
3151                               String8(s, len).string(),
3152                               String8(rname.name, rname.nameLen).string(),
3153                               bag->map.name.ident);
3154                        #endif
3155                        if (strzcmp16(s, len, rname.name, rname.nameLen) == 0) {
3156                            outValue->dataType = bag->map.value.dataType;
3157                            outValue->data = bag->map.value.data;
3158                            unlockBag(bag);
3159                            return true;
3160                        }
3161                    }
3162
3163                }
3164                bag++;
3165                cnt--;
3166            }
3167            unlockBag(bag);
3168        }
3169
3170        if (fromAccessor) {
3171            if (accessor->getAttributeEnum(attrID, s, len, outValue)) {
3172                return true;
3173            }
3174        }
3175    }
3176
3177    if ((attrType&ResTable_map::TYPE_FLAGS) != 0) {
3178        const ssize_t p = getResourcePackageIndex(attrID);
3179        const bag_entry* bag;
3180        ssize_t cnt = p >= 0 ? lockBag(attrID, &bag) : -1;
3181        //printf("Got %d for flags\n", cnt);
3182        if (cnt >= 0) {
3183            bool failed = false;
3184            resource_name rname;
3185            outValue->dataType = Res_value::TYPE_INT_HEX;
3186            outValue->data = 0;
3187            const char16_t* end = s + len;
3188            const char16_t* pos = s;
3189            while (pos < end && !failed) {
3190                const char16_t* start = pos;
3191                pos++;
3192                while (pos < end && *pos != '|') {
3193                    pos++;
3194                }
3195                //printf("Looking for: %s\n", String8(start, pos-start).string());
3196                const bag_entry* bagi = bag;
3197                ssize_t i;
3198                for (i=0; i<cnt; i++, bagi++) {
3199                    if (!Res_INTERNALID(bagi->map.name.ident)) {
3200                        //printf("Trying attr #%08x\n", bagi->map.name.ident);
3201                        if (getResourceName(bagi->map.name.ident, &rname)) {
3202                            #if 0
3203                            printf("Matching %s against %s (0x%08x)\n",
3204                                   String8(start,pos-start).string(),
3205                                   String8(rname.name, rname.nameLen).string(),
3206                                   bagi->map.name.ident);
3207                            #endif
3208                            if (strzcmp16(start, pos-start, rname.name, rname.nameLen) == 0) {
3209                                outValue->data |= bagi->map.value.data;
3210                                break;
3211                            }
3212                        }
3213                    }
3214                }
3215                if (i >= cnt) {
3216                    // Didn't find this flag identifier.
3217                    failed = true;
3218                }
3219                if (pos < end) {
3220                    pos++;
3221                }
3222            }
3223            unlockBag(bag);
3224            if (!failed) {
3225                //printf("Final flag value: 0x%lx\n", outValue->data);
3226                return true;
3227            }
3228        }
3229
3230
3231        if (fromAccessor) {
3232            if (accessor->getAttributeFlags(attrID, s, len, outValue)) {
3233                //printf("Final flag value: 0x%lx\n", outValue->data);
3234                return true;
3235            }
3236        }
3237    }
3238
3239    if ((attrType&ResTable_map::TYPE_STRING) == 0) {
3240        if (accessor != NULL) {
3241            accessor->reportError(accessorCookie, "String types not allowed");
3242        }
3243        return false;
3244    }
3245
3246    // Generic string handling...
3247    outValue->dataType = outValue->TYPE_STRING;
3248    if (outString) {
3249        bool failed = collectString(outString, s, len, preserveSpaces, &errorMsg);
3250        if (accessor != NULL) {
3251            accessor->reportError(accessorCookie, errorMsg);
3252        }
3253        return failed;
3254    }
3255
3256    return true;
3257}
3258
3259bool ResTable::collectString(String16* outString,
3260                             const char16_t* s, size_t len,
3261                             bool preserveSpaces,
3262                             const char** outErrorMsg,
3263                             bool append)
3264{
3265    String16 tmp;
3266
3267    char quoted = 0;
3268    const char16_t* p = s;
3269    while (p < (s+len)) {
3270        while (p < (s+len)) {
3271            const char16_t c = *p;
3272            if (c == '\\') {
3273                break;
3274            }
3275            if (!preserveSpaces) {
3276                if (quoted == 0 && isspace16(c)
3277                    && (c != ' ' || isspace16(*(p+1)))) {
3278                    break;
3279                }
3280                if (c == '"' && (quoted == 0 || quoted == '"')) {
3281                    break;
3282                }
3283                if (c == '\'' && (quoted == 0 || quoted == '\'')) {
3284                    break;
3285                }
3286            }
3287            p++;
3288        }
3289        if (p < (s+len)) {
3290            if (p > s) {
3291                tmp.append(String16(s, p-s));
3292            }
3293            if (!preserveSpaces && (*p == '"' || *p == '\'')) {
3294                if (quoted == 0) {
3295                    quoted = *p;
3296                } else {
3297                    quoted = 0;
3298                }
3299                p++;
3300            } else if (!preserveSpaces && isspace16(*p)) {
3301                // Space outside of a quote -- consume all spaces and
3302                // leave a single plain space char.
3303                tmp.append(String16(" "));
3304                p++;
3305                while (p < (s+len) && isspace16(*p)) {
3306                    p++;
3307                }
3308            } else if (*p == '\\') {
3309                p++;
3310                if (p < (s+len)) {
3311                    switch (*p) {
3312                    case 't':
3313                        tmp.append(String16("\t"));
3314                        break;
3315                    case 'n':
3316                        tmp.append(String16("\n"));
3317                        break;
3318                    case '#':
3319                        tmp.append(String16("#"));
3320                        break;
3321                    case '@':
3322                        tmp.append(String16("@"));
3323                        break;
3324                    case '?':
3325                        tmp.append(String16("?"));
3326                        break;
3327                    case '"':
3328                        tmp.append(String16("\""));
3329                        break;
3330                    case '\'':
3331                        tmp.append(String16("'"));
3332                        break;
3333                    case '\\':
3334                        tmp.append(String16("\\"));
3335                        break;
3336                    case 'u':
3337                    {
3338                        char16_t chr = 0;
3339                        int i = 0;
3340                        while (i < 4 && p[1] != 0) {
3341                            p++;
3342                            i++;
3343                            int c;
3344                            if (*p >= '0' && *p <= '9') {
3345                                c = *p - '0';
3346                            } else if (*p >= 'a' && *p <= 'f') {
3347                                c = *p - 'a' + 10;
3348                            } else if (*p >= 'A' && *p <= 'F') {
3349                                c = *p - 'A' + 10;
3350                            } else {
3351                                if (outErrorMsg) {
3352                                    *outErrorMsg = "Bad character in \\u unicode escape sequence";
3353                                }
3354                                return false;
3355                            }
3356                            chr = (chr<<4) | c;
3357                        }
3358                        tmp.append(String16(&chr, 1));
3359                    } break;
3360                    default:
3361                        // ignore unknown escape chars.
3362                        break;
3363                    }
3364                    p++;
3365                }
3366            }
3367            len -= (p-s);
3368            s = p;
3369        }
3370    }
3371
3372    if (tmp.size() != 0) {
3373        if (len > 0) {
3374            tmp.append(String16(s, len));
3375        }
3376        if (append) {
3377            outString->append(tmp);
3378        } else {
3379            outString->setTo(tmp);
3380        }
3381    } else {
3382        if (append) {
3383            outString->append(String16(s, len));
3384        } else {
3385            outString->setTo(s, len);
3386        }
3387    }
3388
3389    return true;
3390}
3391
3392size_t ResTable::getBasePackageCount() const
3393{
3394    if (mError != NO_ERROR) {
3395        return 0;
3396    }
3397    return mPackageGroups.size();
3398}
3399
3400const char16_t* ResTable::getBasePackageName(size_t idx) const
3401{
3402    if (mError != NO_ERROR) {
3403        return 0;
3404    }
3405    LOG_FATAL_IF(idx >= mPackageGroups.size(),
3406                 "Requested package index %d past package count %d",
3407                 (int)idx, (int)mPackageGroups.size());
3408    return mPackageGroups[idx]->name.string();
3409}
3410
3411uint32_t ResTable::getBasePackageId(size_t idx) const
3412{
3413    if (mError != NO_ERROR) {
3414        return 0;
3415    }
3416    LOG_FATAL_IF(idx >= mPackageGroups.size(),
3417                 "Requested package index %d past package count %d",
3418                 (int)idx, (int)mPackageGroups.size());
3419    return mPackageGroups[idx]->id;
3420}
3421
3422size_t ResTable::getTableCount() const
3423{
3424    return mHeaders.size();
3425}
3426
3427const ResStringPool* ResTable::getTableStringBlock(size_t index) const
3428{
3429    return &mHeaders[index]->values;
3430}
3431
3432void* ResTable::getTableCookie(size_t index) const
3433{
3434    return mHeaders[index]->cookie;
3435}
3436
3437void ResTable::getConfigurations(Vector<ResTable_config>* configs) const
3438{
3439    const size_t I = mPackageGroups.size();
3440    for (size_t i=0; i<I; i++) {
3441        const PackageGroup* packageGroup = mPackageGroups[i];
3442        const size_t J = packageGroup->packages.size();
3443        for (size_t j=0; j<J; j++) {
3444            const Package* package = packageGroup->packages[j];
3445            const size_t K = package->types.size();
3446            for (size_t k=0; k<K; k++) {
3447                const Type* type = package->types[k];
3448                if (type == NULL) continue;
3449                const size_t L = type->configs.size();
3450                for (size_t l=0; l<L; l++) {
3451                    const ResTable_type* config = type->configs[l];
3452                    const ResTable_config* cfg = &config->config;
3453                    // only insert unique
3454                    const size_t M = configs->size();
3455                    size_t m;
3456                    for (m=0; m<M; m++) {
3457                        if (0 == (*configs)[m].compare(*cfg)) {
3458                            break;
3459                        }
3460                    }
3461                    // if we didn't find it
3462                    if (m == M) {
3463                        configs->add(*cfg);
3464                    }
3465                }
3466            }
3467        }
3468    }
3469}
3470
3471void ResTable::getLocales(Vector<String8>* locales) const
3472{
3473    Vector<ResTable_config> configs;
3474    LOGD("calling getConfigurations");
3475    getConfigurations(&configs);
3476    LOGD("called getConfigurations size=%d", (int)configs.size());
3477    const size_t I = configs.size();
3478    for (size_t i=0; i<I; i++) {
3479        char locale[6];
3480        configs[i].getLocale(locale);
3481        const size_t J = locales->size();
3482        size_t j;
3483        for (j=0; j<J; j++) {
3484            if (0 == strcmp(locale, (*locales)[j].string())) {
3485                break;
3486            }
3487        }
3488        if (j == J) {
3489            locales->add(String8(locale));
3490        }
3491    }
3492}
3493
3494ssize_t ResTable::getEntry(
3495    const Package* package, int typeIndex, int entryIndex,
3496    const ResTable_config* config,
3497    const ResTable_type** outType, const ResTable_entry** outEntry,
3498    const Type** outTypeClass) const
3499{
3500    LOGV("Getting entry from package %p\n", package);
3501    const ResTable_package* const pkg = package->package;
3502
3503    const Type* allTypes = package->getType(typeIndex);
3504    LOGV("allTypes=%p\n", allTypes);
3505    if (allTypes == NULL) {
3506        LOGV("Skipping entry type index 0x%02x because type is NULL!\n", typeIndex);
3507        return 0;
3508    }
3509
3510    if ((size_t)entryIndex >= allTypes->entryCount) {
3511        LOGW("getEntry failing because entryIndex %d is beyond type entryCount %d",
3512            entryIndex, (int)allTypes->entryCount);
3513        return BAD_TYPE;
3514    }
3515
3516    const ResTable_type* type = NULL;
3517    uint32_t offset = ResTable_type::NO_ENTRY;
3518    ResTable_config bestConfig;
3519    memset(&bestConfig, 0, sizeof(bestConfig)); // make the compiler shut up
3520
3521    const size_t NT = allTypes->configs.size();
3522    for (size_t i=0; i<NT; i++) {
3523        const ResTable_type* const thisType = allTypes->configs[i];
3524        if (thisType == NULL) continue;
3525
3526        ResTable_config thisConfig;
3527        thisConfig.copyFromDtoH(thisType->config);
3528
3529        TABLE_GETENTRY(LOGI("Match entry 0x%x in type 0x%x (sz 0x%x): imsi:%d/%d=%d/%d lang:%c%c=%c%c cnt:%c%c=%c%c "
3530                            "orien:%d=%d touch:%d=%d density:%d=%d key:%d=%d inp:%d=%d nav:%d=%d w:%d=%d h:%d=%d\n",
3531                           entryIndex, typeIndex+1, dtohl(thisType->config.size),
3532                           thisConfig.mcc, thisConfig.mnc,
3533                           config ? config->mcc : 0, config ? config->mnc : 0,
3534                           thisConfig.language[0] ? thisConfig.language[0] : '-',
3535                           thisConfig.language[1] ? thisConfig.language[1] : '-',
3536                           config && config->language[0] ? config->language[0] : '-',
3537                           config && config->language[1] ? config->language[1] : '-',
3538                           thisConfig.country[0] ? thisConfig.country[0] : '-',
3539                           thisConfig.country[1] ? thisConfig.country[1] : '-',
3540                           config && config->country[0] ? config->country[0] : '-',
3541                           config && config->country[1] ? config->country[1] : '-',
3542                           thisConfig.orientation,
3543                           config ? config->orientation : 0,
3544                           thisConfig.touchscreen,
3545                           config ? config->touchscreen : 0,
3546                           thisConfig.density,
3547                           config ? config->density : 0,
3548                           thisConfig.keyboard,
3549                           config ? config->keyboard : 0,
3550                           thisConfig.inputFlags,
3551                           config ? config->inputFlags : 0,
3552                           thisConfig.navigation,
3553                           config ? config->navigation : 0,
3554                           thisConfig.screenWidth,
3555                           config ? config->screenWidth : 0,
3556                           thisConfig.screenHeight,
3557                           config ? config->screenHeight : 0));
3558
3559        // Check to make sure this one is valid for the current parameters.
3560        if (config && !thisConfig.match(*config)) {
3561            TABLE_GETENTRY(LOGI("Does not match config!\n"));
3562            continue;
3563        }
3564
3565        // Check if there is the desired entry in this type.
3566
3567        const uint8_t* const end = ((const uint8_t*)thisType)
3568            + dtohl(thisType->header.size);
3569        const uint32_t* const eindex = (const uint32_t*)
3570            (((const uint8_t*)thisType) + dtohs(thisType->header.headerSize));
3571
3572        uint32_t thisOffset = dtohl(eindex[entryIndex]);
3573        if (thisOffset == ResTable_type::NO_ENTRY) {
3574            TABLE_GETENTRY(LOGI("Skipping because it is not defined!\n"));
3575            continue;
3576        }
3577
3578        if (type != NULL) {
3579            // Check if this one is less specific than the last found.  If so,
3580            // we will skip it.  We check starting with things we most care
3581            // about to those we least care about.
3582            if (!thisConfig.isBetterThan(bestConfig, config)) {
3583                TABLE_GETENTRY(LOGI("This config is worse than last!\n"));
3584                continue;
3585            }
3586        }
3587
3588        type = thisType;
3589        offset = thisOffset;
3590        bestConfig = thisConfig;
3591        TABLE_GETENTRY(LOGI("Best entry so far -- using it!\n"));
3592        if (!config) break;
3593    }
3594
3595    if (type == NULL) {
3596        TABLE_GETENTRY(LOGI("No value found for requested entry!\n"));
3597        return BAD_INDEX;
3598    }
3599
3600    offset += dtohl(type->entriesStart);
3601    TABLE_NOISY(aout << "Looking in resource table " << package->header->header
3602          << ", typeOff="
3603          << (void*)(((const char*)type)-((const char*)package->header->header))
3604          << ", offset=" << (void*)offset << endl);
3605
3606    if (offset > (dtohl(type->header.size)-sizeof(ResTable_entry))) {
3607        LOGW("ResTable_entry at 0x%x is beyond type chunk data 0x%x",
3608             offset, dtohl(type->header.size));
3609        return BAD_TYPE;
3610    }
3611    if ((offset&0x3) != 0) {
3612        LOGW("ResTable_entry at 0x%x is not on an integer boundary",
3613             offset);
3614        return BAD_TYPE;
3615    }
3616
3617    const ResTable_entry* const entry = (const ResTable_entry*)
3618        (((const uint8_t*)type) + offset);
3619    if (dtohs(entry->size) < sizeof(*entry)) {
3620        LOGW("ResTable_entry size 0x%x is too small", dtohs(entry->size));
3621        return BAD_TYPE;
3622    }
3623
3624    *outType = type;
3625    *outEntry = entry;
3626    if (outTypeClass != NULL) {
3627        *outTypeClass = allTypes;
3628    }
3629    return offset + dtohs(entry->size);
3630}
3631
3632status_t ResTable::parsePackage(const ResTable_package* const pkg,
3633                                const Header* const header)
3634{
3635    const uint8_t* base = (const uint8_t*)pkg;
3636    status_t err = validate_chunk(&pkg->header, sizeof(*pkg),
3637                                  header->dataEnd, "ResTable_package");
3638    if (err != NO_ERROR) {
3639        return (mError=err);
3640    }
3641
3642    const size_t pkgSize = dtohl(pkg->header.size);
3643
3644    if (dtohl(pkg->typeStrings) >= pkgSize) {
3645        LOGW("ResTable_package type strings at %p are past chunk size %p.",
3646             (void*)dtohl(pkg->typeStrings), (void*)pkgSize);
3647        return (mError=BAD_TYPE);
3648    }
3649    if ((dtohl(pkg->typeStrings)&0x3) != 0) {
3650        LOGW("ResTable_package type strings at %p is not on an integer boundary.",
3651             (void*)dtohl(pkg->typeStrings));
3652        return (mError=BAD_TYPE);
3653    }
3654    if (dtohl(pkg->keyStrings) >= pkgSize) {
3655        LOGW("ResTable_package key strings at %p are past chunk size %p.",
3656             (void*)dtohl(pkg->keyStrings), (void*)pkgSize);
3657        return (mError=BAD_TYPE);
3658    }
3659    if ((dtohl(pkg->keyStrings)&0x3) != 0) {
3660        LOGW("ResTable_package key strings at %p is not on an integer boundary.",
3661             (void*)dtohl(pkg->keyStrings));
3662        return (mError=BAD_TYPE);
3663    }
3664
3665    Package* package = NULL;
3666    PackageGroup* group = NULL;
3667    uint32_t id = dtohl(pkg->id);
3668    if (id != 0 && id < 256) {
3669
3670        package = new Package(this, header, pkg);
3671        if (package == NULL) {
3672            return (mError=NO_MEMORY);
3673        }
3674
3675        size_t idx = mPackageMap[id];
3676        if (idx == 0) {
3677            idx = mPackageGroups.size()+1;
3678
3679            char16_t tmpName[sizeof(pkg->name)/sizeof(char16_t)];
3680            strcpy16_dtoh(tmpName, pkg->name, sizeof(pkg->name)/sizeof(char16_t));
3681            group = new PackageGroup(this, String16(tmpName), id);
3682            if (group == NULL) {
3683                delete package;
3684                return (mError=NO_MEMORY);
3685            }
3686
3687            err = package->typeStrings.setTo(base+dtohl(pkg->typeStrings),
3688                                           header->dataEnd-(base+dtohl(pkg->typeStrings)));
3689            if (err != NO_ERROR) {
3690                delete group;
3691                delete package;
3692                return (mError=err);
3693            }
3694            err = package->keyStrings.setTo(base+dtohl(pkg->keyStrings),
3695                                          header->dataEnd-(base+dtohl(pkg->keyStrings)));
3696            if (err != NO_ERROR) {
3697                delete group;
3698                delete package;
3699                return (mError=err);
3700            }
3701
3702            //printf("Adding new package id %d at index %d\n", id, idx);
3703            err = mPackageGroups.add(group);
3704            if (err < NO_ERROR) {
3705                return (mError=err);
3706            }
3707            group->basePackage = package;
3708
3709            mPackageMap[id] = (uint8_t)idx;
3710        } else {
3711            group = mPackageGroups.itemAt(idx-1);
3712            if (group == NULL) {
3713                return (mError=UNKNOWN_ERROR);
3714            }
3715        }
3716        err = group->packages.add(package);
3717        if (err < NO_ERROR) {
3718            return (mError=err);
3719        }
3720    } else {
3721        LOG_ALWAYS_FATAL("Skins not supported!");
3722        return NO_ERROR;
3723    }
3724
3725
3726    // Iterate through all chunks.
3727    size_t curPackage = 0;
3728
3729    const ResChunk_header* chunk =
3730        (const ResChunk_header*)(((const uint8_t*)pkg)
3731                                 + dtohs(pkg->header.headerSize));
3732    const uint8_t* endPos = ((const uint8_t*)pkg) + dtohs(pkg->header.size);
3733    while (((const uint8_t*)chunk) <= (endPos-sizeof(ResChunk_header)) &&
3734           ((const uint8_t*)chunk) <= (endPos-dtohl(chunk->size))) {
3735        TABLE_NOISY(LOGV("PackageChunk: type=0x%x, headerSize=0x%x, size=0x%x, pos=%p\n",
3736                         dtohs(chunk->type), dtohs(chunk->headerSize), dtohl(chunk->size),
3737                         (void*)(((const uint8_t*)chunk) - ((const uint8_t*)header->header))));
3738        const size_t csize = dtohl(chunk->size);
3739        const uint16_t ctype = dtohs(chunk->type);
3740        if (ctype == RES_TABLE_TYPE_SPEC_TYPE) {
3741            const ResTable_typeSpec* typeSpec = (const ResTable_typeSpec*)(chunk);
3742            err = validate_chunk(&typeSpec->header, sizeof(*typeSpec),
3743                                 endPos, "ResTable_typeSpec");
3744            if (err != NO_ERROR) {
3745                return (mError=err);
3746            }
3747
3748            const size_t typeSpecSize = dtohl(typeSpec->header.size);
3749
3750            LOAD_TABLE_NOISY(printf("TypeSpec off %p: type=0x%x, headerSize=0x%x, size=%p\n",
3751                                    (void*)(base-(const uint8_t*)chunk),
3752                                    dtohs(typeSpec->header.type),
3753                                    dtohs(typeSpec->header.headerSize),
3754                                    (void*)typeSize));
3755            // look for block overrun or int overflow when multiplying by 4
3756            if ((dtohl(typeSpec->entryCount) > (INT32_MAX/sizeof(uint32_t))
3757                    || dtohs(typeSpec->header.headerSize)+(sizeof(uint32_t)*dtohl(typeSpec->entryCount))
3758                    > typeSpecSize)) {
3759                LOGW("ResTable_typeSpec entry index to %p extends beyond chunk end %p.",
3760                     (void*)(dtohs(typeSpec->header.headerSize)
3761                             +(sizeof(uint32_t)*dtohl(typeSpec->entryCount))),
3762                     (void*)typeSpecSize);
3763                return (mError=BAD_TYPE);
3764            }
3765
3766            if (typeSpec->id == 0) {
3767                LOGW("ResTable_type has an id of 0.");
3768                return (mError=BAD_TYPE);
3769            }
3770
3771            while (package->types.size() < typeSpec->id) {
3772                package->types.add(NULL);
3773            }
3774            Type* t = package->types[typeSpec->id-1];
3775            if (t == NULL) {
3776                t = new Type(header, package, dtohl(typeSpec->entryCount));
3777                package->types.editItemAt(typeSpec->id-1) = t;
3778            } else if (dtohl(typeSpec->entryCount) != t->entryCount) {
3779                LOGW("ResTable_typeSpec entry count inconsistent: given %d, previously %d",
3780                    (int)dtohl(typeSpec->entryCount), (int)t->entryCount);
3781                return (mError=BAD_TYPE);
3782            }
3783            t->typeSpecFlags = (const uint32_t*)(
3784                    ((const uint8_t*)typeSpec) + dtohs(typeSpec->header.headerSize));
3785            t->typeSpec = typeSpec;
3786
3787        } else if (ctype == RES_TABLE_TYPE_TYPE) {
3788            const ResTable_type* type = (const ResTable_type*)(chunk);
3789            err = validate_chunk(&type->header, sizeof(*type)-sizeof(ResTable_config)+4,
3790                                 endPos, "ResTable_type");
3791            if (err != NO_ERROR) {
3792                return (mError=err);
3793            }
3794
3795            const size_t typeSize = dtohl(type->header.size);
3796
3797            LOAD_TABLE_NOISY(printf("Type off %p: type=0x%x, headerSize=0x%x, size=%p\n",
3798                                    (void*)(base-(const uint8_t*)chunk),
3799                                    dtohs(type->header.type),
3800                                    dtohs(type->header.headerSize),
3801                                    (void*)typeSize));
3802            if (dtohs(type->header.headerSize)+(sizeof(uint32_t)*dtohl(type->entryCount))
3803                > typeSize) {
3804                LOGW("ResTable_type entry index to %p extends beyond chunk end %p.",
3805                     (void*)(dtohs(type->header.headerSize)
3806                             +(sizeof(uint32_t)*dtohl(type->entryCount))),
3807                     (void*)typeSize);
3808                return (mError=BAD_TYPE);
3809            }
3810            if (dtohl(type->entryCount) != 0
3811                && dtohl(type->entriesStart) > (typeSize-sizeof(ResTable_entry))) {
3812                LOGW("ResTable_type entriesStart at %p extends beyond chunk end %p.",
3813                     (void*)dtohl(type->entriesStart), (void*)typeSize);
3814                return (mError=BAD_TYPE);
3815            }
3816            if (type->id == 0) {
3817                LOGW("ResTable_type has an id of 0.");
3818                return (mError=BAD_TYPE);
3819            }
3820
3821            while (package->types.size() < type->id) {
3822                package->types.add(NULL);
3823            }
3824            Type* t = package->types[type->id-1];
3825            if (t == NULL) {
3826                t = new Type(header, package, dtohl(type->entryCount));
3827                package->types.editItemAt(type->id-1) = t;
3828            } else if (dtohl(type->entryCount) != t->entryCount) {
3829                LOGW("ResTable_type entry count inconsistent: given %d, previously %d",
3830                    (int)dtohl(type->entryCount), (int)t->entryCount);
3831                return (mError=BAD_TYPE);
3832            }
3833
3834            TABLE_GETENTRY(
3835                ResTable_config thisConfig;
3836                thisConfig.copyFromDtoH(type->config);
3837                LOGI("Adding config to type %d: imsi:%d/%d lang:%c%c cnt:%c%c "
3838                     "orien:%d touch:%d density:%d key:%d inp:%d nav:%d w:%d h:%d\n",
3839                      type->id,
3840                      thisConfig.mcc, thisConfig.mnc,
3841                      thisConfig.language[0] ? thisConfig.language[0] : '-',
3842                      thisConfig.language[1] ? thisConfig.language[1] : '-',
3843                      thisConfig.country[0] ? thisConfig.country[0] : '-',
3844                      thisConfig.country[1] ? thisConfig.country[1] : '-',
3845                      thisConfig.orientation,
3846                      thisConfig.touchscreen,
3847                      thisConfig.density,
3848                      thisConfig.keyboard,
3849                      thisConfig.inputFlags,
3850                      thisConfig.navigation,
3851                      thisConfig.screenWidth,
3852                      thisConfig.screenHeight));
3853            t->configs.add(type);
3854        } else {
3855            status_t err = validate_chunk(chunk, sizeof(ResChunk_header),
3856                                          endPos, "ResTable_package:unknown");
3857            if (err != NO_ERROR) {
3858                return (mError=err);
3859            }
3860        }
3861        chunk = (const ResChunk_header*)
3862            (((const uint8_t*)chunk) + csize);
3863    }
3864
3865    if (group->typeCount == 0) {
3866        group->typeCount = package->types.size();
3867    }
3868
3869    return NO_ERROR;
3870}
3871
3872#ifndef HAVE_ANDROID_OS
3873#define CHAR16_TO_CSTR(c16, len) (String8(String16(c16,len)).string())
3874
3875#define CHAR16_ARRAY_EQ(constant, var, len) \
3876        ((len == (sizeof(constant)/sizeof(constant[0]))) && (0 == memcmp((var), (constant), (len))))
3877
3878void print_complex(uint32_t complex, bool isFraction)
3879{
3880    const float MANTISSA_MULT =
3881        1.0f / (1<<Res_value::COMPLEX_MANTISSA_SHIFT);
3882    const float RADIX_MULTS[] = {
3883        1.0f*MANTISSA_MULT, 1.0f/(1<<7)*MANTISSA_MULT,
3884        1.0f/(1<<15)*MANTISSA_MULT, 1.0f/(1<<23)*MANTISSA_MULT
3885    };
3886
3887    float value = (complex&(Res_value::COMPLEX_MANTISSA_MASK
3888                   <<Res_value::COMPLEX_MANTISSA_SHIFT))
3889            * RADIX_MULTS[(complex>>Res_value::COMPLEX_RADIX_SHIFT)
3890                            & Res_value::COMPLEX_RADIX_MASK];
3891    printf("%f", value);
3892
3893    if (!isFraction) {
3894        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
3895            case Res_value::COMPLEX_UNIT_PX: printf("px"); break;
3896            case Res_value::COMPLEX_UNIT_DIP: printf("dp"); break;
3897            case Res_value::COMPLEX_UNIT_SP: printf("sp"); break;
3898            case Res_value::COMPLEX_UNIT_PT: printf("pt"); break;
3899            case Res_value::COMPLEX_UNIT_IN: printf("in"); break;
3900            case Res_value::COMPLEX_UNIT_MM: printf("mm"); break;
3901            default: printf(" (unknown unit)"); break;
3902        }
3903    } else {
3904        switch ((complex>>Res_value::COMPLEX_UNIT_SHIFT)&Res_value::COMPLEX_UNIT_MASK) {
3905            case Res_value::COMPLEX_UNIT_FRACTION: printf("%%"); break;
3906            case Res_value::COMPLEX_UNIT_FRACTION_PARENT: printf("%%p"); break;
3907            default: printf(" (unknown unit)"); break;
3908        }
3909    }
3910}
3911
3912void ResTable::print_value(const Package* pkg, const Res_value& value) const
3913{
3914    if (value.dataType == Res_value::TYPE_NULL) {
3915        printf("(null)\n");
3916    } else if (value.dataType == Res_value::TYPE_REFERENCE) {
3917        printf("(reference) 0x%08x\n", value.data);
3918    } else if (value.dataType == Res_value::TYPE_ATTRIBUTE) {
3919        printf("(attribute) 0x%08x\n", value.data);
3920    } else if (value.dataType == Res_value::TYPE_STRING) {
3921        size_t len;
3922        const char16_t* str = pkg->header->values.stringAt(
3923                value.data, &len);
3924        if (str == NULL) {
3925            printf("(string) null\n");
3926        } else {
3927            printf("(string) \"%s\"\n",
3928                    String8(str, len).string());
3929        }
3930    } else if (value.dataType == Res_value::TYPE_FLOAT) {
3931        printf("(float) %g\n", *(const float*)&value.data);
3932    } else if (value.dataType == Res_value::TYPE_DIMENSION) {
3933        printf("(dimension) ");
3934        print_complex(value.data, false);
3935        printf("\n");
3936    } else if (value.dataType == Res_value::TYPE_FRACTION) {
3937        printf("(fraction) ");
3938        print_complex(value.data, true);
3939        printf("\n");
3940    } else if (value.dataType >= Res_value::TYPE_FIRST_COLOR_INT
3941            || value.dataType <= Res_value::TYPE_LAST_COLOR_INT) {
3942        printf("(color) #%08x\n", value.data);
3943    } else if (value.dataType == Res_value::TYPE_INT_BOOLEAN) {
3944        printf("(boolean) %s\n", value.data ? "true" : "false");
3945    } else if (value.dataType >= Res_value::TYPE_FIRST_INT
3946            || value.dataType <= Res_value::TYPE_LAST_INT) {
3947        printf("(int) 0x%08x or %d\n", value.data, value.data);
3948    } else {
3949        printf("(unknown type) t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)\n",
3950               (int)value.dataType, (int)value.data,
3951               (int)value.size, (int)value.res0);
3952    }
3953}
3954
3955void ResTable::print(bool inclValues) const
3956{
3957    if (mError != 0) {
3958        printf("mError=0x%x (%s)\n", mError, strerror(mError));
3959    }
3960#if 0
3961    printf("mParams=%c%c-%c%c,\n",
3962            mParams.language[0], mParams.language[1],
3963            mParams.country[0], mParams.country[1]);
3964#endif
3965    size_t pgCount = mPackageGroups.size();
3966    printf("Package Groups (%d)\n", (int)pgCount);
3967    for (size_t pgIndex=0; pgIndex<pgCount; pgIndex++) {
3968        const PackageGroup* pg = mPackageGroups[pgIndex];
3969        printf("Package Group %d id=%d packageCount=%d name=%s\n",
3970                (int)pgIndex, pg->id, (int)pg->packages.size(),
3971                String8(pg->name).string());
3972
3973        size_t pkgCount = pg->packages.size();
3974        for (size_t pkgIndex=0; pkgIndex<pkgCount; pkgIndex++) {
3975            const Package* pkg = pg->packages[pkgIndex];
3976            size_t typeCount = pkg->types.size();
3977            printf("  Package %d id=%d name=%s typeCount=%d\n", (int)pkgIndex,
3978                    pkg->package->id, String8(String16(pkg->package->name)).string(),
3979                    (int)typeCount);
3980            for (size_t typeIndex=0; typeIndex<typeCount; typeIndex++) {
3981                const Type* typeConfigs = pkg->getType(typeIndex);
3982                if (typeConfigs == NULL) {
3983                    printf("    type %d NULL\n", (int)typeIndex);
3984                    continue;
3985                }
3986                const size_t NTC = typeConfigs->configs.size();
3987                printf("    type %d configCount=%d entryCount=%d\n",
3988                       (int)typeIndex, (int)NTC, (int)typeConfigs->entryCount);
3989                if (typeConfigs->typeSpecFlags != NULL) {
3990                    for (size_t entryIndex=0; entryIndex<typeConfigs->entryCount; entryIndex++) {
3991                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
3992                                    | (0x00ff0000 & ((typeIndex+1)<<16))
3993                                    | (0x0000ffff & (entryIndex));
3994                        resource_name resName;
3995                        this->getResourceName(resID, &resName);
3996                        printf("      spec resource 0x%08x %s:%s/%s: flags=0x%08x\n",
3997                            resID,
3998                            CHAR16_TO_CSTR(resName.package, resName.packageLen),
3999                            CHAR16_TO_CSTR(resName.type, resName.typeLen),
4000                            CHAR16_TO_CSTR(resName.name, resName.nameLen),
4001                            dtohl(typeConfigs->typeSpecFlags[entryIndex]));
4002                    }
4003                }
4004                for (size_t configIndex=0; configIndex<NTC; configIndex++) {
4005                    const ResTable_type* type = typeConfigs->configs[configIndex];
4006                    if ((((uint64_t)type)&0x3) != 0) {
4007                        printf("      NON-INTEGER ResTable_type ADDRESS: %p\n", type);
4008                        continue;
4009                    }
4010                    char density[16];
4011                    uint16_t dval = dtohs(type->config.density);
4012                    if (dval == ResTable_config::DENSITY_DEFAULT) {
4013                        strcpy(density, "def");
4014                    } else if (dval == ResTable_config::DENSITY_NONE) {
4015                        strcpy(density, "no");
4016                    } else {
4017                        sprintf(density, "%d", (int)dval);
4018                    }
4019                    printf("      config %d lang=%c%c cnt=%c%c orien=%d touch=%d density=%s key=%d infl=%d nav=%d w=%d h=%d sz=%d lng=%d\n",
4020                           (int)configIndex,
4021                           type->config.language[0] ? type->config.language[0] : '-',
4022                           type->config.language[1] ? type->config.language[1] : '-',
4023                           type->config.country[0] ? type->config.country[0] : '-',
4024                           type->config.country[1] ? type->config.country[1] : '-',
4025                           type->config.orientation,
4026                           type->config.touchscreen,
4027                           density,
4028                           type->config.keyboard,
4029                           type->config.inputFlags,
4030                           type->config.navigation,
4031                           dtohs(type->config.screenWidth),
4032                           dtohs(type->config.screenHeight),
4033                           type->config.screenLayout&ResTable_config::MASK_SCREENSIZE,
4034                           type->config.screenLayout&ResTable_config::MASK_SCREENLONG);
4035                    size_t entryCount = dtohl(type->entryCount);
4036                    uint32_t entriesStart = dtohl(type->entriesStart);
4037                    if ((entriesStart&0x3) != 0) {
4038                        printf("      NON-INTEGER ResTable_type entriesStart OFFSET: %p\n", (void*)entriesStart);
4039                        continue;
4040                    }
4041                    uint32_t typeSize = dtohl(type->header.size);
4042                    if ((typeSize&0x3) != 0) {
4043                        printf("      NON-INTEGER ResTable_type header.size: %p\n", (void*)typeSize);
4044                        continue;
4045                    }
4046                    for (size_t entryIndex=0; entryIndex<entryCount; entryIndex++) {
4047
4048                        const uint8_t* const end = ((const uint8_t*)type)
4049                            + dtohl(type->header.size);
4050                        const uint32_t* const eindex = (const uint32_t*)
4051                            (((const uint8_t*)type) + dtohs(type->header.headerSize));
4052
4053                        uint32_t thisOffset = dtohl(eindex[entryIndex]);
4054                        if (thisOffset == ResTable_type::NO_ENTRY) {
4055                            continue;
4056                        }
4057
4058                        uint32_t resID = (0xff000000 & ((pkg->package->id)<<24))
4059                                    | (0x00ff0000 & ((typeIndex+1)<<16))
4060                                    | (0x0000ffff & (entryIndex));
4061                        resource_name resName;
4062                        this->getResourceName(resID, &resName);
4063                        printf("        resource 0x%08x %s:%s/%s: ", resID,
4064                                CHAR16_TO_CSTR(resName.package, resName.packageLen),
4065                                CHAR16_TO_CSTR(resName.type, resName.typeLen),
4066                                CHAR16_TO_CSTR(resName.name, resName.nameLen));
4067                        if ((thisOffset&0x3) != 0) {
4068                            printf("NON-INTEGER OFFSET: %p\n", (void*)thisOffset);
4069                            continue;
4070                        }
4071                        if ((thisOffset+sizeof(ResTable_entry)) > typeSize) {
4072                            printf("OFFSET OUT OF BOUNDS: %p+%p (size is %p)\n",
4073                                   (void*)entriesStart, (void*)thisOffset,
4074                                   (void*)typeSize);
4075                            continue;
4076                        }
4077
4078                        const ResTable_entry* ent = (const ResTable_entry*)
4079                            (((const uint8_t*)type) + entriesStart + thisOffset);
4080                        if (((entriesStart + thisOffset)&0x3) != 0) {
4081                            printf("NON-INTEGER ResTable_entry OFFSET: %p\n",
4082                                 (void*)(entriesStart + thisOffset));
4083                            continue;
4084                        }
4085
4086                        uint16_t esize = dtohs(ent->size);
4087                        if ((esize&0x3) != 0) {
4088                            printf("NON-INTEGER ResTable_entry SIZE: %p\n", (void*)esize);
4089                            continue;
4090                        }
4091                        if ((thisOffset+esize) > typeSize) {
4092                            printf("ResTable_entry OUT OF BOUNDS: %p+%p+%p (size is %p)\n",
4093                                   (void*)entriesStart, (void*)thisOffset,
4094                                   (void*)esize, (void*)typeSize);
4095                            continue;
4096                        }
4097
4098                        const Res_value* valuePtr = NULL;
4099                        const ResTable_map_entry* bagPtr = NULL;
4100                        Res_value value;
4101                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_COMPLEX) != 0) {
4102                            printf("<bag>");
4103                            bagPtr = (const ResTable_map_entry*)ent;
4104                        } else {
4105                            valuePtr = (const Res_value*)
4106                                (((const uint8_t*)ent) + esize);
4107                            value.copyFrom_dtoh(*valuePtr);
4108                            printf("t=0x%02x d=0x%08x (s=0x%04x r=0x%02x)",
4109                                   (int)value.dataType, (int)value.data,
4110                                   (int)value.size, (int)value.res0);
4111                        }
4112
4113                        if ((dtohs(ent->flags)&ResTable_entry::FLAG_PUBLIC) != 0) {
4114                            printf(" (PUBLIC)");
4115                        }
4116                        printf("\n");
4117
4118                        if (inclValues) {
4119                            if (valuePtr != NULL) {
4120                                printf("          ");
4121                                print_value(pkg, value);
4122                            } else if (bagPtr != NULL) {
4123                                const int N = dtohl(bagPtr->count);
4124                                const ResTable_map* mapPtr = (const ResTable_map*)
4125                                        (((const uint8_t*)ent) + esize);
4126                                printf("          Parent=0x%08x, Count=%d\n",
4127                                    dtohl(bagPtr->parent.ident), N);
4128                                for (int i=0; i<N; i++) {
4129                                    printf("          #%i (Key=0x%08x): ",
4130                                        i, dtohl(mapPtr->name.ident));
4131                                    value.copyFrom_dtoh(mapPtr->value);
4132                                    print_value(pkg, value);
4133                                    const size_t size = dtohs(mapPtr->value.size);
4134                                    mapPtr = (ResTable_map*)(((const uint8_t*)mapPtr)
4135                                            + size + sizeof(*mapPtr)-sizeof(mapPtr->value));
4136                                }
4137                            }
4138                        }
4139                    }
4140                }
4141            }
4142        }
4143    }
4144}
4145
4146#endif // HAVE_ANDROID_OS
4147
4148}   // namespace android
4149