| /* |
| ******************************************************************************* |
| * |
| * Copyright (C) 2003-2014, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| * |
| ******************************************************************************* |
| * file name: ucol_swp.cpp |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:4 |
| * |
| * created on: 2003sep10 |
| * created by: Markus W. Scherer |
| * |
| * Swap collation binaries. |
| */ |
| |
| #include "unicode/udata.h" /* UDataInfo */ |
| #include "utrie.h" |
| #include "utrie2.h" |
| #include "udataswp.h" |
| #include "cmemory.h" |
| #include "ucol_data.h" |
| #include "ucol_swp.h" |
| |
| /* swapping ----------------------------------------------------------------- */ |
| |
| /* |
| * This performs data swapping for a folded trie (see utrie.c for details). |
| */ |
| |
| U_CAPI int32_t U_EXPORT2 |
| utrie_swap(const UDataSwapper *ds, |
| const void *inData, int32_t length, void *outData, |
| UErrorCode *pErrorCode) { |
| const UTrieHeader *inTrie; |
| UTrieHeader trie; |
| int32_t size; |
| UBool dataIs32; |
| |
| if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { |
| return 0; |
| } |
| if(ds==NULL || inData==NULL || (length>=0 && outData==NULL)) { |
| *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| /* setup and swapping */ |
| if(length>=0 && (uint32_t)length<sizeof(UTrieHeader)) { |
| *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| inTrie=(const UTrieHeader *)inData; |
| trie.signature=ds->readUInt32(inTrie->signature); |
| trie.options=ds->readUInt32(inTrie->options); |
| trie.indexLength=udata_readInt32(ds, inTrie->indexLength); |
| trie.dataLength=udata_readInt32(ds, inTrie->dataLength); |
| |
| if( trie.signature!=0x54726965 || |
| (trie.options&UTRIE_OPTIONS_SHIFT_MASK)!=UTRIE_SHIFT || |
| ((trie.options>>UTRIE_OPTIONS_INDEX_SHIFT)&UTRIE_OPTIONS_SHIFT_MASK)!=UTRIE_INDEX_SHIFT || |
| trie.indexLength<UTRIE_BMP_INDEX_LENGTH || |
| (trie.indexLength&(UTRIE_SURROGATE_BLOCK_COUNT-1))!=0 || |
| trie.dataLength<UTRIE_DATA_BLOCK_LENGTH || |
| (trie.dataLength&(UTRIE_DATA_GRANULARITY-1))!=0 || |
| ((trie.options&UTRIE_OPTIONS_LATIN1_IS_LINEAR)!=0 && trie.dataLength<(UTRIE_DATA_BLOCK_LENGTH+0x100)) |
| ) { |
| *pErrorCode=U_INVALID_FORMAT_ERROR; /* not a UTrie */ |
| return 0; |
| } |
| |
| dataIs32=(UBool)((trie.options&UTRIE_OPTIONS_DATA_IS_32_BIT)!=0); |
| size=sizeof(UTrieHeader)+trie.indexLength*2+trie.dataLength*(dataIs32?4:2); |
| |
| if(length>=0) { |
| UTrieHeader *outTrie; |
| |
| if(length<size) { |
| *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| outTrie=(UTrieHeader *)outData; |
| |
| /* swap the header */ |
| ds->swapArray32(ds, inTrie, sizeof(UTrieHeader), outTrie, pErrorCode); |
| |
| /* swap the index and the data */ |
| if(dataIs32) { |
| ds->swapArray16(ds, inTrie+1, trie.indexLength*2, outTrie+1, pErrorCode); |
| ds->swapArray32(ds, (const uint16_t *)(inTrie+1)+trie.indexLength, trie.dataLength*4, |
| (uint16_t *)(outTrie+1)+trie.indexLength, pErrorCode); |
| } else { |
| ds->swapArray16(ds, inTrie+1, (trie.indexLength+trie.dataLength)*2, outTrie+1, pErrorCode); |
| } |
| } |
| |
| return size; |
| } |
| |
| #if !UCONFIG_NO_COLLATION |
| |
| U_CAPI UBool U_EXPORT2 |
| ucol_looksLikeCollationBinary(const UDataSwapper *ds, |
| const void *inData, int32_t length) { |
| if(ds==NULL || inData==NULL || length<-1) { |
| return FALSE; |
| } |
| |
| // First check for format version 4+ which has a standard data header. |
| UErrorCode errorCode=U_ZERO_ERROR; |
| (void)udata_swapDataHeader(ds, inData, -1, NULL, &errorCode); |
| if(U_SUCCESS(errorCode)) { |
| const UDataInfo &info=*(const UDataInfo *)((const char *)inData+4); |
| if(info.dataFormat[0]==0x55 && // dataFormat="UCol" |
| info.dataFormat[1]==0x43 && |
| info.dataFormat[2]==0x6f && |
| info.dataFormat[3]==0x6c) { |
| return TRUE; |
| } |
| } |
| |
| // Else check for format version 3. |
| const UCATableHeader *inHeader=(const UCATableHeader *)inData; |
| |
| /* |
| * The collation binary must contain at least the UCATableHeader, |
| * starting with its size field. |
| * sizeof(UCATableHeader)==42*4 in ICU 2.8 |
| * check the length against the header size before reading the size field |
| */ |
| UCATableHeader header; |
| uprv_memset(&header, 0, sizeof(header)); |
| if(length<0) { |
| header.size=udata_readInt32(ds, inHeader->size); |
| } else if((length<(42*4) || length<(header.size=udata_readInt32(ds, inHeader->size)))) { |
| return FALSE; |
| } |
| |
| header.magic=ds->readUInt32(inHeader->magic); |
| if(!( |
| header.magic==UCOL_HEADER_MAGIC && |
| inHeader->formatVersion[0]==3 /*&& |
| inHeader->formatVersion[1]>=0*/ |
| )) { |
| return FALSE; |
| } |
| |
| if(inHeader->isBigEndian!=ds->inIsBigEndian || inHeader->charSetFamily!=ds->inCharset) { |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| namespace { |
| |
| /* swap a header-less collation formatVersion=3 binary, inside a resource bundle or ucadata.icu */ |
| int32_t |
| swapFormatVersion3(const UDataSwapper *ds, |
| const void *inData, int32_t length, void *outData, |
| UErrorCode *pErrorCode) { |
| const uint8_t *inBytes; |
| uint8_t *outBytes; |
| |
| const UCATableHeader *inHeader; |
| UCATableHeader *outHeader; |
| UCATableHeader header; |
| |
| uint32_t count; |
| |
| /* argument checking in case we were not called from ucol_swap() */ |
| if(U_FAILURE(*pErrorCode)) { |
| return 0; |
| } |
| if(ds==NULL || inData==NULL || length<-1 || (length>0 && outData==NULL)) { |
| *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| inBytes=(const uint8_t *)inData; |
| outBytes=(uint8_t *)outData; |
| |
| inHeader=(const UCATableHeader *)inData; |
| outHeader=(UCATableHeader *)outData; |
| |
| /* |
| * The collation binary must contain at least the UCATableHeader, |
| * starting with its size field. |
| * sizeof(UCATableHeader)==42*4 in ICU 2.8 |
| * check the length against the header size before reading the size field |
| */ |
| uprv_memset(&header, 0, sizeof(header)); |
| if(length<0) { |
| header.size=udata_readInt32(ds, inHeader->size); |
| } else if((length<(42*4) || length<(header.size=udata_readInt32(ds, inHeader->size)))) { |
| udata_printError(ds, "ucol_swap(formatVersion=3): too few bytes (%d after header) for collation data\n", |
| length); |
| *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| header.magic=ds->readUInt32(inHeader->magic); |
| if(!( |
| header.magic==UCOL_HEADER_MAGIC && |
| inHeader->formatVersion[0]==3 /*&& |
| inHeader->formatVersion[1]>=0*/ |
| )) { |
| udata_printError(ds, "ucol_swap(formatVersion=3): magic 0x%08x or format version %02x.%02x is not a collation binary\n", |
| header.magic, |
| inHeader->formatVersion[0], inHeader->formatVersion[1]); |
| *pErrorCode=U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| if(inHeader->isBigEndian!=ds->inIsBigEndian || inHeader->charSetFamily!=ds->inCharset) { |
| udata_printError(ds, "ucol_swap(formatVersion=3): endianness %d or charset %d does not match the swapper\n", |
| inHeader->isBigEndian, inHeader->charSetFamily); |
| *pErrorCode=U_INVALID_FORMAT_ERROR; |
| return 0; |
| } |
| |
| if(length>=0) { |
| /* copy everything, takes care of data that needs no swapping */ |
| if(inBytes!=outBytes) { |
| uprv_memcpy(outBytes, inBytes, header.size); |
| } |
| |
| /* swap the necessary pieces in the order of their occurrence in the data */ |
| |
| /* read more of the UCATableHeader (the size field was read above) */ |
| header.options= ds->readUInt32(inHeader->options); |
| header.UCAConsts= ds->readUInt32(inHeader->UCAConsts); |
| header.contractionUCACombos= ds->readUInt32(inHeader->contractionUCACombos); |
| header.mappingPosition= ds->readUInt32(inHeader->mappingPosition); |
| header.expansion= ds->readUInt32(inHeader->expansion); |
| header.contractionIndex= ds->readUInt32(inHeader->contractionIndex); |
| header.contractionCEs= ds->readUInt32(inHeader->contractionCEs); |
| header.contractionSize= ds->readUInt32(inHeader->contractionSize); |
| header.endExpansionCE= ds->readUInt32(inHeader->endExpansionCE); |
| header.expansionCESize= ds->readUInt32(inHeader->expansionCESize); |
| header.endExpansionCECount= udata_readInt32(ds, inHeader->endExpansionCECount); |
| header.contractionUCACombosSize=udata_readInt32(ds, inHeader->contractionUCACombosSize); |
| header.scriptToLeadByte= ds->readUInt32(inHeader->scriptToLeadByte); |
| header.leadByteToScript= ds->readUInt32(inHeader->leadByteToScript); |
| |
| /* swap the 32-bit integers in the header */ |
| ds->swapArray32(ds, inHeader, (int32_t)((const char *)&inHeader->jamoSpecial-(const char *)inHeader), |
| outHeader, pErrorCode); |
| ds->swapArray32(ds, &(inHeader->scriptToLeadByte), sizeof(header.scriptToLeadByte) + sizeof(header.leadByteToScript), |
| &(outHeader->scriptToLeadByte), pErrorCode); |
| /* set the output platform properties */ |
| outHeader->isBigEndian=ds->outIsBigEndian; |
| outHeader->charSetFamily=ds->outCharset; |
| |
| /* swap the options */ |
| if(header.options!=0) { |
| ds->swapArray32(ds, inBytes+header.options, header.expansion-header.options, |
| outBytes+header.options, pErrorCode); |
| } |
| |
| /* swap the expansions */ |
| if(header.mappingPosition!=0 && header.expansion!=0) { |
| if(header.contractionIndex!=0) { |
| /* expansions bounded by contractions */ |
| count=header.contractionIndex-header.expansion; |
| } else { |
| /* no contractions: expansions bounded by the main trie */ |
| count=header.mappingPosition-header.expansion; |
| } |
| ds->swapArray32(ds, inBytes+header.expansion, (int32_t)count, |
| outBytes+header.expansion, pErrorCode); |
| } |
| |
| /* swap the contractions */ |
| if(header.contractionSize!=0) { |
| /* contractionIndex: UChar[] */ |
| ds->swapArray16(ds, inBytes+header.contractionIndex, header.contractionSize*2, |
| outBytes+header.contractionIndex, pErrorCode); |
| |
| /* contractionCEs: CEs[] */ |
| ds->swapArray32(ds, inBytes+header.contractionCEs, header.contractionSize*4, |
| outBytes+header.contractionCEs, pErrorCode); |
| } |
| |
| /* swap the main trie */ |
| if(header.mappingPosition!=0) { |
| count=header.endExpansionCE-header.mappingPosition; |
| utrie_swap(ds, inBytes+header.mappingPosition, (int32_t)count, |
| outBytes+header.mappingPosition, pErrorCode); |
| } |
| |
| /* swap the max expansion table */ |
| if(header.endExpansionCECount!=0) { |
| ds->swapArray32(ds, inBytes+header.endExpansionCE, header.endExpansionCECount*4, |
| outBytes+header.endExpansionCE, pErrorCode); |
| } |
| |
| /* expansionCESize, unsafeCP, contrEndCP: uint8_t[], no need to swap */ |
| |
| /* swap UCA constants */ |
| if(header.UCAConsts!=0) { |
| /* |
| * if UCAConsts!=0 then contractionUCACombos because we are swapping |
| * the UCA data file, and we know that the UCA contains contractions |
| */ |
| count=header.contractionUCACombos-header.UCAConsts; |
| ds->swapArray32(ds, inBytes+header.UCAConsts, header.contractionUCACombos-header.UCAConsts, |
| outBytes+header.UCAConsts, pErrorCode); |
| } |
| |
| /* swap UCA contractions */ |
| if(header.contractionUCACombosSize!=0) { |
| count=header.contractionUCACombosSize*inHeader->contractionUCACombosWidth*U_SIZEOF_UCHAR; |
| ds->swapArray16(ds, inBytes+header.contractionUCACombos, (int32_t)count, |
| outBytes+header.contractionUCACombos, pErrorCode); |
| } |
| |
| /* swap the script to lead bytes */ |
| if(header.scriptToLeadByte!=0) { |
| int indexCount = ds->readUInt16(*((uint16_t*)(inBytes+header.scriptToLeadByte))); // each entry = 2 * uint16 |
| int dataCount = ds->readUInt16(*((uint16_t*)(inBytes+header.scriptToLeadByte + 2))); // each entry = uint16 |
| ds->swapArray16(ds, inBytes+header.scriptToLeadByte, |
| 4 + (4 * indexCount) + (2 * dataCount), |
| outBytes+header.scriptToLeadByte, pErrorCode); |
| } |
| |
| /* swap the lead byte to scripts */ |
| if(header.leadByteToScript!=0) { |
| int indexCount = ds->readUInt16(*((uint16_t*)(inBytes+header.leadByteToScript))); // each entry = uint16 |
| int dataCount = ds->readUInt16(*((uint16_t*)(inBytes+header.leadByteToScript + 2))); // each entry = uint16 |
| ds->swapArray16(ds, inBytes+header.leadByteToScript, |
| 4 + (2 * indexCount) + (2 * dataCount), |
| outBytes+header.leadByteToScript, pErrorCode); |
| } |
| } |
| |
| return header.size; |
| } |
| |
| // swap formatVersion 4 ---------------------------------------------------- *** |
| |
| // The following are copied from CollationDataReader, trading an awkward copy of constants |
| // for an awkward relocation of the i18n collationdatareader.h file into the common library. |
| // Keep them in sync! |
| |
| enum { |
| IX_INDEXES_LENGTH, // 0 |
| IX_OPTIONS, |
| IX_RESERVED2, |
| IX_RESERVED3, |
| |
| IX_JAMO_CE32S_START, // 4 |
| IX_REORDER_CODES_OFFSET, |
| IX_REORDER_TABLE_OFFSET, |
| IX_TRIE_OFFSET, |
| |
| IX_RESERVED8_OFFSET, // 8 |
| IX_CES_OFFSET, |
| IX_RESERVED10_OFFSET, |
| IX_CE32S_OFFSET, |
| |
| IX_ROOT_ELEMENTS_OFFSET, // 12 |
| IX_CONTEXTS_OFFSET, |
| IX_UNSAFE_BWD_OFFSET, |
| IX_FAST_LATIN_TABLE_OFFSET, |
| |
| IX_SCRIPTS_OFFSET, // 16 |
| IX_COMPRESSIBLE_BYTES_OFFSET, |
| IX_RESERVED18_OFFSET, |
| IX_TOTAL_SIZE |
| }; |
| |
| int32_t |
| swapFormatVersion4(const UDataSwapper *ds, |
| const void *inData, int32_t length, void *outData, |
| UErrorCode &errorCode) { |
| if(U_FAILURE(errorCode)) { return 0; } |
| |
| const uint8_t *inBytes=(const uint8_t *)inData; |
| uint8_t *outBytes=(uint8_t *)outData; |
| |
| const int32_t *inIndexes=(const int32_t *)inBytes; |
| int32_t indexes[IX_TOTAL_SIZE+1]; |
| |
| // Need at least IX_INDEXES_LENGTH and IX_OPTIONS. |
| if(0<=length && length<8) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " |
| "(%d after header) for collation data\n", |
| length); |
| errorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| int32_t indexesLength=indexes[0]=udata_readInt32(ds, inIndexes[0]); |
| if(0<=length && length<(indexesLength*4)) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " |
| "(%d after header) for collation data\n", |
| length); |
| errorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| for(int32_t i=1; i<=IX_TOTAL_SIZE && i<indexesLength; ++i) { |
| indexes[i]=udata_readInt32(ds, inIndexes[i]); |
| } |
| for(int32_t i=indexesLength; i<=IX_TOTAL_SIZE; ++i) { |
| indexes[i]=-1; |
| } |
| inIndexes=NULL; // Make sure we do not accidentally use these instead of indexes[]. |
| |
| // Get the total length of the data. |
| int32_t size; |
| if(indexesLength>IX_TOTAL_SIZE) { |
| size=indexes[IX_TOTAL_SIZE]; |
| } else if(indexesLength>IX_REORDER_CODES_OFFSET) { |
| size=indexes[indexesLength-1]; |
| } else { |
| size=indexesLength*4; |
| } |
| if(length<0) { return size; } |
| |
| if(length<size) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): too few bytes " |
| "(%d after header) for collation data\n", |
| length); |
| errorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| // Copy the data for inaccessible bytes and arrays of bytes. |
| if(inBytes!=outBytes) { |
| uprv_memcpy(outBytes, inBytes, size); |
| } |
| |
| // Swap the int32_t indexes[]. |
| ds->swapArray32(ds, inBytes, indexesLength * 4, outBytes, &errorCode); |
| |
| // The following is a modified version of CollationDataReader::read(). |
| // Here we use indexes[] not inIndexes[] because |
| // the inIndexes[] may not be in this machine's endianness. |
| int32_t index; // one of the indexes[] slots |
| int32_t offset; // byte offset for the index part |
| // int32_t length; // number of bytes in the index part |
| |
| index = IX_REORDER_CODES_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| // Skip the IX_REORDER_TABLE_OFFSET byte array. |
| |
| index = IX_TRIE_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| utrie2_swap(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_RESERVED8_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED8_OFFSET\n", length); |
| errorCode = U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| index = IX_CES_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray64(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_RESERVED10_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED10_OFFSET\n", length); |
| errorCode = U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| index = IX_CE32S_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_ROOT_ELEMENTS_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray32(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_CONTEXTS_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_UNSAFE_BWD_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_FAST_LATIN_TABLE_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| index = IX_SCRIPTS_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| ds->swapArray16(ds, inBytes + offset, length, outBytes + offset, &errorCode); |
| } |
| |
| // Skip the IX_COMPRESSIBLE_BYTES_OFFSET byte array. |
| |
| index = IX_RESERVED18_OFFSET; |
| offset = indexes[index]; |
| length = indexes[index + 1] - offset; |
| if(length > 0) { |
| udata_printError(ds, "ucol_swap(formatVersion=4): unknown data at IX_RESERVED18_OFFSET\n", length); |
| errorCode = U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| return size; |
| } |
| |
| } // namespace |
| |
| /* swap ICU collation data like ucadata.icu */ |
| U_CAPI int32_t U_EXPORT2 |
| ucol_swap(const UDataSwapper *ds, |
| const void *inData, int32_t length, void *outData, |
| UErrorCode *pErrorCode) { |
| if(U_FAILURE(*pErrorCode)) { return 0; } |
| |
| /* udata_swapDataHeader checks the arguments */ |
| int32_t headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode); |
| if(U_FAILURE(*pErrorCode)) { |
| // Try to swap the old format version which did not have a standard data header. |
| *pErrorCode=U_ZERO_ERROR; |
| return swapFormatVersion3(ds, inData, length, outData, pErrorCode); |
| } |
| |
| /* check data format and format version */ |
| const UDataInfo &info=*(const UDataInfo *)((const char *)inData+4); |
| if(!( |
| info.dataFormat[0]==0x55 && // dataFormat="UCol" |
| info.dataFormat[1]==0x43 && |
| info.dataFormat[2]==0x6f && |
| info.dataFormat[3]==0x6c && |
| (info.formatVersion[0]==3 || info.formatVersion[0]==4) |
| )) { |
| udata_printError(ds, "ucol_swap(): data format %02x.%02x.%02x.%02x " |
| "(format version %02x.%02x) is not recognized as collation data\n", |
| info.dataFormat[0], info.dataFormat[1], |
| info.dataFormat[2], info.dataFormat[3], |
| info.formatVersion[0], info.formatVersion[1]); |
| *pErrorCode=U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| inData=(const char *)inData+headerSize; |
| if(length>=0) { length-=headerSize; } |
| outData=(char *)outData+headerSize; |
| int32_t collationSize; |
| if(info.formatVersion[0]>=4) { |
| collationSize=swapFormatVersion4(ds, inData, length, outData, *pErrorCode); |
| } else { |
| collationSize=swapFormatVersion3(ds, inData, length, outData, pErrorCode); |
| } |
| if(U_SUCCESS(*pErrorCode)) { |
| return headerSize+collationSize; |
| } else { |
| return 0; |
| } |
| } |
| |
| /* swap inverse UCA collation data (invuca.icu) */ |
| U_CAPI int32_t U_EXPORT2 |
| ucol_swapInverseUCA(const UDataSwapper *ds, |
| const void *inData, int32_t length, void *outData, |
| UErrorCode *pErrorCode) { |
| const UDataInfo *pInfo; |
| int32_t headerSize; |
| |
| const uint8_t *inBytes; |
| uint8_t *outBytes; |
| |
| const InverseUCATableHeader *inHeader; |
| InverseUCATableHeader *outHeader; |
| InverseUCATableHeader header={ 0,0,0,0,0,{0,0,0,0},{0,0,0,0,0,0,0,0} }; |
| |
| /* udata_swapDataHeader checks the arguments */ |
| headerSize=udata_swapDataHeader(ds, inData, length, outData, pErrorCode); |
| if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { |
| return 0; |
| } |
| |
| /* check data format and format version */ |
| pInfo=(const UDataInfo *)((const char *)inData+4); |
| if(!( |
| pInfo->dataFormat[0]==0x49 && /* dataFormat="InvC" */ |
| pInfo->dataFormat[1]==0x6e && |
| pInfo->dataFormat[2]==0x76 && |
| pInfo->dataFormat[3]==0x43 && |
| pInfo->formatVersion[0]==2 && |
| pInfo->formatVersion[1]>=1 |
| )) { |
| udata_printError(ds, "ucol_swapInverseUCA(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not an inverse UCA collation file\n", |
| pInfo->dataFormat[0], pInfo->dataFormat[1], |
| pInfo->dataFormat[2], pInfo->dataFormat[3], |
| pInfo->formatVersion[0], pInfo->formatVersion[1]); |
| *pErrorCode=U_UNSUPPORTED_ERROR; |
| return 0; |
| } |
| |
| inBytes=(const uint8_t *)inData+headerSize; |
| outBytes=(uint8_t *)outData+headerSize; |
| |
| inHeader=(const InverseUCATableHeader *)inBytes; |
| outHeader=(InverseUCATableHeader *)outBytes; |
| |
| /* |
| * The inverse UCA collation binary must contain at least the InverseUCATableHeader, |
| * starting with its size field. |
| * sizeof(UCATableHeader)==8*4 in ICU 2.8 |
| * check the length against the header size before reading the size field |
| */ |
| if(length<0) { |
| header.byteSize=udata_readInt32(ds, inHeader->byteSize); |
| } else if( |
| ((length-headerSize)<(8*4) || |
| (uint32_t)(length-headerSize)<(header.byteSize=udata_readInt32(ds, inHeader->byteSize))) |
| ) { |
| udata_printError(ds, "ucol_swapInverseUCA(): too few bytes (%d after header) for inverse UCA collation data\n", |
| length); |
| *pErrorCode=U_INDEX_OUTOFBOUNDS_ERROR; |
| return 0; |
| } |
| |
| if(length>=0) { |
| /* copy everything, takes care of data that needs no swapping */ |
| if(inBytes!=outBytes) { |
| uprv_memcpy(outBytes, inBytes, header.byteSize); |
| } |
| |
| /* swap the necessary pieces in the order of their occurrence in the data */ |
| |
| /* read more of the InverseUCATableHeader (the byteSize field was read above) */ |
| header.tableSize= ds->readUInt32(inHeader->tableSize); |
| header.contsSize= ds->readUInt32(inHeader->contsSize); |
| header.table= ds->readUInt32(inHeader->table); |
| header.conts= ds->readUInt32(inHeader->conts); |
| |
| /* swap the 32-bit integers in the header */ |
| ds->swapArray32(ds, inHeader, 5*4, outHeader, pErrorCode); |
| |
| /* swap the inverse table; tableSize counts uint32_t[3] rows */ |
| ds->swapArray32(ds, inBytes+header.table, header.tableSize*3*4, |
| outBytes+header.table, pErrorCode); |
| |
| /* swap the continuation table; contsSize counts UChars */ |
| ds->swapArray16(ds, inBytes+header.conts, header.contsSize*U_SIZEOF_UCHAR, |
| outBytes+header.conts, pErrorCode); |
| } |
| |
| return headerSize+header.byteSize; |
| } |
| |
| #endif /* #if !UCONFIG_NO_COLLATION */ |
