--- /dev/null
+/*
+*******************************************************************************
+*
+* Copyright (C) 2003-2010, International Business Machines
+* Corporation and others. All Rights Reserved.
+*
+*******************************************************************************
+* file name: ucol_swp.c
+* 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 "udataswp.h"
+#include "cmemory.h"
+#include "ucol_imp.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
+
+/* Modified copy of the beginning of ucol_swapBinary(). */
+U_CAPI UBool U_EXPORT2
+ucol_looksLikeCollationBinary(const UDataSwapper *ds,
+ const void *inData, int32_t length) {
+ const uint8_t *inBytes;
+ const UCATableHeader *inHeader;
+ UCATableHeader header;
+
+ if(ds==NULL || inData==NULL || length<-1) {
+ return FALSE;
+ }
+
+ inBytes=(const uint8_t *)inData;
+ 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
+ */
+ 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;
+}
+
+/* swap a header-less collation binary, inside a resource bundle or ucadata.icu */
+U_CAPI int32_t U_EXPORT2
+ucol_swapBinary(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(pErrorCode==NULL || 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_swapBinary(): 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_swapBinary(): 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_swapBinary(): 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 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) {
+
+ const UDataInfo *pInfo;
+ int32_t headerSize, collationSize;
+
+ /* 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]==0x55 && /* dataFormat="UCol" */
+ pInfo->dataFormat[1]==0x43 &&
+ pInfo->dataFormat[2]==0x6f &&
+ pInfo->dataFormat[3]==0x6c &&
+ pInfo->formatVersion[0]==3 /*&&
+ pInfo->formatVersion[1]>=0*/
+ )) {
+ udata_printError(ds, "ucol_swap(): data format %02x.%02x.%02x.%02x (format version %02x.%02x) is not a 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;
+ }
+
+ collationSize=ucol_swapBinary(ds,
+ (const char *)inData+headerSize,
+ length>=0 ? length-headerSize : -1,
+ (char *)outData+headerSize,
+ 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 */
projects / apple / icu.git / blobdiff