/*
*******************************************************************************
*
* Copyright (C) 1999-2009, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: package.cpp
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 2005aug25
* created by: Markus W. Scherer
*
* Read, modify, and write ICU .dat data package files.
* This is an integral part of the icupkg tool, moved to the toolutil library
* because parts of tool implementations tend to be later shared by
* other tools.
* Subsumes functionality and implementation code from
* gencmn, decmn, and icuswap tools.
*/
#include "unicode/utypes.h"
#include "unicode/putil.h"
#include "unicode/udata.h"
#include "cstring.h"
#include "uarrsort.h"
#include "ucmndata.h"
#include "udataswp.h"
#include "swapimpl.h"
#include "toolutil.h"
#include "package.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// general definitions ----------------------------------------------------- ***
#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
/* UDataInfo cf. udata.h */
static const UDataInfo dataInfo={
(uint16_t)sizeof(UDataInfo),
0,
U_IS_BIG_ENDIAN,
U_CHARSET_FAMILY,
(uint8_t)sizeof(UChar),
0,
{0x43, 0x6d, 0x6e, 0x44}, /* dataFormat="CmnD" */
{1, 0, 0, 0}, /* formatVersion */
{3, 0, 0, 0} /* dataVersion */
};
U_CDECL_BEGIN
static void U_CALLCONV
printPackageError(void *context, const char *fmt, va_list args) {
vfprintf((FILE *)context, fmt, args);
}
U_CDECL_END
static uint16_t
readSwapUInt16(uint16_t x) {
return (uint16_t)((x<<8)|(x>>8));
}
// platform types ---------------------------------------------------------- ***
static const char *types="lb?e";
enum { TYPE_L, TYPE_B, TYPE_LE, TYPE_E, TYPE_COUNT };
static inline int32_t
makeTypeEnum(uint8_t charset, UBool isBigEndian) {
return 2*(int32_t)charset+isBigEndian;
}
static inline int32_t
makeTypeEnum(char type) {
return
type == 'l' ? TYPE_L :
type == 'b' ? TYPE_B :
type == 'e' ? TYPE_E :
-1;
}
static inline char
makeTypeLetter(uint8_t charset, UBool isBigEndian) {
return types[makeTypeEnum(charset, isBigEndian)];
}
static inline char
makeTypeLetter(int32_t typeEnum) {
return types[typeEnum];
}
static void
makeTypeProps(char type, uint8_t &charset, UBool &isBigEndian) {
int32_t typeEnum=makeTypeEnum(type);
charset=(uint8_t)(typeEnum>>1);
isBigEndian=(UBool)(typeEnum&1);
}
U_CFUNC const UDataInfo *
getDataInfo(const uint8_t *data, int32_t length,
int32_t &infoLength, int32_t &headerLength,
UErrorCode *pErrorCode) {
const DataHeader *pHeader;
const UDataInfo *pInfo;
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
return NULL;
}
if( data==NULL ||
(length>=0 && length<(int32_t)sizeof(DataHeader))
) {
*pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
pHeader=(const DataHeader *)data;
pInfo=&pHeader->info;
if( (length>=0 && length<(int32_t)sizeof(DataHeader)) ||
pHeader->dataHeader.magic1!=0xda ||
pHeader->dataHeader.magic2!=0x27 ||
pInfo->sizeofUChar!=2
) {
*pErrorCode=U_UNSUPPORTED_ERROR;
return NULL;
}
if(pInfo->isBigEndian==U_IS_BIG_ENDIAN) {
headerLength=pHeader->dataHeader.headerSize;
infoLength=pInfo->size;
} else {
headerLength=readSwapUInt16(pHeader->dataHeader.headerSize);
infoLength=readSwapUInt16(pInfo->size);
}
if( headerLength<(int32_t)sizeof(DataHeader) ||
infoLength<(int32_t)sizeof(UDataInfo) ||
headerLength<(int32_t)(sizeof(pHeader->dataHeader)+infoLength) ||
(length>=0 && length<headerLength)
) {
*pErrorCode=U_UNSUPPORTED_ERROR;
return NULL;
}
return pInfo;
}
static int32_t
getTypeEnumForInputData(const uint8_t *data, int32_t length,
UErrorCode *pErrorCode) {
const UDataInfo *pInfo;
int32_t infoLength, headerLength;
/* getDataInfo() checks for illegal arguments */
pInfo=getDataInfo(data, length, infoLength, headerLength, pErrorCode);
if(pInfo==NULL) {
return -1;
}
return makeTypeEnum(pInfo->charsetFamily, (UBool)pInfo->isBigEndian);
}
// file handling ----------------------------------------------------------- ***
static void
extractPackageName(const char *filename,
char pkg[], int32_t capacity) {
const char *basename;
int32_t len;
basename=findBasename(filename);
len=(int32_t)strlen(basename)-4; /* -4: subtract the length of ".dat" */
if(len<=0 || 0!=strcmp(basename+len, ".dat")) {
fprintf(stderr, "icupkg: \"%s\" is not recognized as a package filename (must end with .dat)\n",
basename);
exit(U_ILLEGAL_ARGUMENT_ERROR);
}
if(len>=capacity) {
fprintf(stderr, "icupkg: the package name \"%s\" is too long (>=%ld)\n",
basename, (long)capacity);
exit(U_ILLEGAL_ARGUMENT_ERROR);
}
memcpy(pkg, basename, len);
pkg[len]=0;
}
static int32_t
getFileLength(FILE *f) {
int32_t length;
fseek(f, 0, SEEK_END);
length=(int32_t)ftell(f);
fseek(f, 0, SEEK_SET);
return length;
}
/*
* Turn tree separators and alternate file separators into normal file separators.
*/
#if U_TREE_ENTRY_SEP_CHAR==U_FILE_SEP_CHAR && U_FILE_ALT_SEP_CHAR==U_FILE_SEP_CHAR
#define treeToPath(s)
#else
static void
treeToPath(char *s) {
char *t;
for(t=s; *t!=0; ++t) {
if(*t==U_TREE_ENTRY_SEP_CHAR || *t==U_FILE_ALT_SEP_CHAR) {
*t=U_FILE_SEP_CHAR;
}
}
}
#endif
/*
* Turn file separators into tree separators.
*/
#if U_TREE_ENTRY_SEP_CHAR==U_FILE_SEP_CHAR && U_FILE_ALT_SEP_CHAR==U_FILE_SEP_CHAR
#define pathToTree(s)
#else
static void
pathToTree(char *s) {
char *t;
for(t=s; *t!=0; ++t) {
if(*t==U_FILE_SEP_CHAR || *t==U_FILE_ALT_SEP_CHAR) {
*t=U_TREE_ENTRY_SEP_CHAR;
}
}
}
#endif
/*
* Prepend the path (if any) to the name and run the name through treeToName().
*/
static void
makeFullFilename(const char *path, const char *name,
char *filename, int32_t capacity) {
char *s;
// prepend the path unless NULL or empty
if(path!=NULL && path[0]!=0) {
if((int32_t)(strlen(path)+1)>=capacity) {
fprintf(stderr, "pathname too long: \"%s\"\n", path);
exit(U_BUFFER_OVERFLOW_ERROR);
}
strcpy(filename, path);
// make sure the path ends with a file separator
s=strchr(filename, 0);
if(*(s-1)!=U_FILE_SEP_CHAR && *(s-1)!=U_FILE_ALT_SEP_CHAR) {
*s++=U_FILE_SEP_CHAR;
}
} else {
s=filename;
}
// turn the name into a filename, turn tree separators into file separators
if((int32_t)((s-filename)+strlen(name))>=capacity) {
fprintf(stderr, "path/filename too long: \"%s%s\"\n", filename, name);
exit(U_BUFFER_OVERFLOW_ERROR);
}
strcpy(s, name);
treeToPath(s);
}
static void
makeFullFilenameAndDirs(const char *path, const char *name,
char *filename, int32_t capacity) {
char *sep;
UErrorCode errorCode;
makeFullFilename(path, name, filename, capacity);
// make tree directories
errorCode=U_ZERO_ERROR;
sep=strchr(filename, 0)-strlen(name);
while((sep=strchr(sep, U_FILE_SEP_CHAR))!=NULL) {
if(sep!=filename) {
*sep=0; // truncate temporarily
uprv_mkdir(filename, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: unable to create tree directory \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
}
*sep++=U_FILE_SEP_CHAR; // restore file separator character
}
}
static uint8_t *
readFile(const char *path, const char *name, int32_t &length, char &type) {
char filename[1024];
FILE *file;
uint8_t *data;
UErrorCode errorCode;
int32_t fileLength, typeEnum;
makeFullFilename(path, name, filename, (int32_t)sizeof(filename));
/* open the input file, get its length, allocate memory for it, read the file */
file=fopen(filename, "rb");
if(file==NULL) {
fprintf(stderr, "icupkg: unable to open input file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
/* get the file length */
fileLength=getFileLength(file);
if(ferror(file) || fileLength<=0) {
fprintf(stderr, "icupkg: empty input file \"%s\"\n", filename);
fclose(file);
exit(U_FILE_ACCESS_ERROR);
}
/* allocate the buffer, pad to multiple of 16 */
length=(fileLength+0xf)&~0xf;
data=(uint8_t *)malloc(length);
if(data==NULL) {
fclose(file);
exit(U_MEMORY_ALLOCATION_ERROR);
}
/* read the file */
if(fileLength!=(int32_t)fread(data, 1, fileLength, file)) {
fprintf(stderr, "icupkg: error reading \"%s\"\n", filename);
fclose(file);
free(data);
exit(U_FILE_ACCESS_ERROR);
}
/* pad the file to a multiple of 16 using the usual padding byte */
if(fileLength<length) {
memset(data+fileLength, 0xaa, length-fileLength);
}
fclose(file);
// minimum check for ICU-format data
errorCode=U_ZERO_ERROR;
typeEnum=getTypeEnumForInputData(data, length, &errorCode);
if(typeEnum<0 || U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: not an ICU data file: \"%s\"\n", filename);
free(data);
exit(U_INVALID_FORMAT_ERROR);
}
type=makeTypeLetter(typeEnum);
return data;
}
// .dat package file representation ---------------------------------------- ***
U_CDECL_BEGIN
static int32_t U_CALLCONV
compareItems(const void * /*context*/, const void *left, const void *right) {
U_NAMESPACE_USE
return (int32_t)strcmp(((Item *)left)->name, ((Item *)right)->name);
}
U_CDECL_END
U_NAMESPACE_BEGIN
Package::Package() {
inPkgName[0]=0;
inData=NULL;
inLength=0;
inCharset=U_CHARSET_FAMILY;
inIsBigEndian=U_IS_BIG_ENDIAN;
itemCount=0;
inStringTop=outStringTop=0;
matchMode=0;
findPrefix=findSuffix=NULL;
findPrefixLength=findSuffixLength=0;
findNextIndex=-1;
// create a header for an empty package
DataHeader *pHeader;
pHeader=(DataHeader *)header;
pHeader->dataHeader.magic1=0xda;
pHeader->dataHeader.magic2=0x27;
memcpy(&pHeader->info, &dataInfo, sizeof(dataInfo));
headerLength=(int32_t)(4+sizeof(dataInfo));
if(headerLength&0xf) {
/* NUL-pad the header to a multiple of 16 */
int32_t length=(headerLength+0xf)&~0xf;
memset(header+headerLength, 0, length-headerLength);
headerLength=length;
}
pHeader->dataHeader.headerSize=(uint16_t)headerLength;
}
Package::~Package() {
int32_t idx;
free(inData);
for(idx=0; idx<itemCount; ++idx) {
if(items[idx].isDataOwned) {
free(items[idx].data);
}
}
}
void
Package::readPackage(const char *filename) {
UDataSwapper *ds;
const UDataInfo *pInfo;
UErrorCode errorCode;
const uint8_t *inBytes;
int32_t length, offset, i;
int32_t itemLength, typeEnum;
char type;
const UDataOffsetTOCEntry *inEntries;
extractPackageName(filename, inPkgName, (int32_t)sizeof(inPkgName));
/* read the file */
inData=readFile(NULL, filename, inLength, type);
length=inLength;
/*
* swap the header - even if the swapping itself is a no-op
* because it tells us the header length
*/
errorCode=U_ZERO_ERROR;
makeTypeProps(type, inCharset, inIsBigEndian);
ds=udata_openSwapper(inIsBigEndian, inCharset, U_IS_BIG_ENDIAN, U_CHARSET_FAMILY, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_openSwapper(\"%s\") failed - %s\n",
filename, u_errorName(errorCode));
exit(errorCode);
}
ds->printError=printPackageError;
ds->printErrorContext=stderr;
headerLength=sizeof(header);
if(length<headerLength) {
headerLength=length;
}
headerLength=udata_swapDataHeader(ds, inData, headerLength, header, &errorCode);
if(U_FAILURE(errorCode)) {
exit(errorCode);
}
/* check data format and format version */
pInfo=(const UDataInfo *)((const char *)inData+4);
if(!(
pInfo->dataFormat[0]==0x43 && /* dataFormat="CmnD" */
pInfo->dataFormat[1]==0x6d &&
pInfo->dataFormat[2]==0x6e &&
pInfo->dataFormat[3]==0x44 &&
pInfo->formatVersion[0]==1
)) {
fprintf(stderr, "icupkg: data format %02x.%02x.%02x.%02x (format version %02x) is not recognized as an ICU .dat package\n",
pInfo->dataFormat[0], pInfo->dataFormat[1],
pInfo->dataFormat[2], pInfo->dataFormat[3],
pInfo->formatVersion[0]);
exit(U_UNSUPPORTED_ERROR);
}
inIsBigEndian=(UBool)pInfo->isBigEndian;
inCharset=pInfo->charsetFamily;
inBytes=(const uint8_t *)inData+headerLength;
inEntries=(const UDataOffsetTOCEntry *)(inBytes+4);
/* check that the itemCount fits, then the ToC table, then at least the header of the last item */
length-=headerLength;
if(length<4) {
/* itemCount does not fit */
offset=0x7fffffff;
} else {
itemCount=udata_readInt32(ds, *(const int32_t *)inBytes);
if(itemCount==0) {
offset=4;
} else if(length<(4+8*itemCount)) {
/* ToC table does not fit */
offset=0x7fffffff;
} else {
/* offset of the last item plus at least 20 bytes for its header */
offset=20+(int32_t)ds->readUInt32(inEntries[itemCount-1].dataOffset);
}
}
if(length<offset) {
fprintf(stderr, "icupkg: too few bytes (%ld after header) for a .dat package\n",
(long)length);
exit(U_INDEX_OUTOFBOUNDS_ERROR);
}
/* do not modify the package length variable until the last item's length is set */
if(itemCount>0) {
char prefix[MAX_PKG_NAME_LENGTH+4];
char *s, *inItemStrings;
int32_t inPkgNameLength, prefixLength, stringsOffset;
if(itemCount>MAX_FILE_COUNT) {
fprintf(stderr, "icupkg: too many items, maximum is %d\n", MAX_FILE_COUNT);
exit(U_BUFFER_OVERFLOW_ERROR);
}
/* swap the item name strings */
stringsOffset=4+8*itemCount;
itemLength=(int32_t)(ds->readUInt32(inEntries[0].dataOffset))-stringsOffset;
// don't include padding bytes at the end of the item names
while(itemLength>0 && inBytes[stringsOffset+itemLength-1]!=0) {
--itemLength;
}
if((inStringTop+itemLength)>STRING_STORE_SIZE) {
fprintf(stderr, "icupkg: total length of item name strings too long\n");
exit(U_BUFFER_OVERFLOW_ERROR);
}
inItemStrings=inStrings+inStringTop;
ds->swapInvChars(ds, inBytes+stringsOffset, itemLength, inItemStrings, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg failed to swap the input .dat package item name strings\n");
exit(U_INVALID_FORMAT_ERROR);
}
inStringTop+=itemLength;
// reset the Item entries
memset(items, 0, itemCount*sizeof(Item));
inPkgNameLength=strlen(inPkgName);
memcpy(prefix, inPkgName, inPkgNameLength);
prefixLength=inPkgNameLength;
/*
* Get the common prefix of the items.
* New-style ICU .dat packages use tree separators ('/') between package names,
* tree names, and item names,
* while old-style ICU .dat packages (before multi-tree support)
* use an underscore ('_') between package and item names.
*/
offset=(int32_t)ds->readUInt32(inEntries[0].nameOffset)-stringsOffset;
s=inItemStrings+offset;
if( (int32_t)strlen(s)>=(inPkgNameLength+2) &&
0==memcmp(s, inPkgName, inPkgNameLength) &&
s[inPkgNameLength]=='_'
) {
// old-style .dat package
prefix[prefixLength++]='_';
} else {
// new-style .dat package
prefix[prefixLength++]=U_TREE_ENTRY_SEP_CHAR;
// if it turns out to not contain U_TREE_ENTRY_SEP_CHAR
// then the test in the loop below will fail
}
prefix[prefixLength]=0;
/* read the ToC table */
for(i=0; i<itemCount; ++i) {
// skip the package part of the item name, error if it does not match the actual package name
// or if nothing follows the package name
offset=(int32_t)ds->readUInt32(inEntries[i].nameOffset)-stringsOffset;
s=inItemStrings+offset;
if(0!=strncmp(s, prefix, prefixLength) || s[prefixLength]==0) {
fprintf(stderr, "icupkg: input .dat item name \"%s\" does not start with \"%s\"\n",
s, prefix);
exit(U_UNSUPPORTED_ERROR);
}
items[i].name=s+prefixLength;
// set the item's data
items[i].data=(uint8_t *)inBytes+ds->readUInt32(inEntries[i].dataOffset);
if(i>0) {
items[i-1].length=(int32_t)(items[i].data-items[i-1].data);
// set the previous item's platform type
typeEnum=getTypeEnumForInputData(items[i-1].data, items[i-1].length, &errorCode);
if(typeEnum<0 || U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: not an ICU data file: item \"%s\" in \"%s\"\n", items[i-1].name, filename);
exit(U_INVALID_FORMAT_ERROR);
}
items[i-1].type=makeTypeLetter(typeEnum);
}
items[i].isDataOwned=FALSE;
}
// set the last item's length
items[itemCount-1].length=length-ds->readUInt32(inEntries[itemCount-1].dataOffset);
// set the last item's platform type
typeEnum=getTypeEnumForInputData(items[itemCount-1].data, items[itemCount-1].length, &errorCode);
if(typeEnum<0 || U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: not an ICU data file: item \"%s\" in \"%s\"\n", items[i-1].name, filename);
exit(U_INVALID_FORMAT_ERROR);
}
items[itemCount-1].type=makeTypeLetter(typeEnum);
if(type!=U_ICUDATA_TYPE_LETTER[0]) {
// sort the item names for the local charset
sortItems();
}
}
udata_closeSwapper(ds);
}
char
Package::getInType() {
return makeTypeLetter(inCharset, inIsBigEndian);
}
void
Package::writePackage(const char *filename, char outType, const char *comment) {
char prefix[MAX_PKG_NAME_LENGTH+4];
UDataOffsetTOCEntry entry;
UDataSwapper *dsLocalToOut, *ds[TYPE_COUNT];
FILE *file;
Item *pItem;
char *name;
UErrorCode errorCode;
int32_t i, length, prefixLength, maxItemLength, basenameOffset, offset, outInt32;
uint8_t outCharset;
UBool outIsBigEndian;
extractPackageName(filename, prefix, MAX_PKG_NAME_LENGTH);
// if there is an explicit comment, then use it, else use what's in the current header
if(comment!=NULL) {
/* get the header size minus the current comment */
DataHeader *pHeader;
int32_t length;
pHeader=(DataHeader *)header;
headerLength=4+pHeader->info.size;
length=(int32_t)strlen(comment);
if((int32_t)(headerLength+length)>=(int32_t)sizeof(header)) {
fprintf(stderr, "icupkg: comment too long\n");
exit(U_BUFFER_OVERFLOW_ERROR);
}
memcpy(header+headerLength, comment, length+1);
headerLength+=length;
if(headerLength&0xf) {
/* NUL-pad the header to a multiple of 16 */
length=(headerLength+0xf)&~0xf;
memset(header+headerLength, 0, length-headerLength);
headerLength=length;
}
pHeader->dataHeader.headerSize=(uint16_t)headerLength;
}
makeTypeProps(outType, outCharset, outIsBigEndian);
// open (TYPE_COUNT-2) swappers
// one is a no-op for local type==outType
// one type (TYPE_LE) is bogus
errorCode=U_ZERO_ERROR;
i=makeTypeEnum(outType);
ds[TYPE_B]= i==TYPE_B ? NULL : udata_openSwapper(TRUE, U_ASCII_FAMILY, outIsBigEndian, outCharset, &errorCode);
ds[TYPE_L]= i==TYPE_L ? NULL : udata_openSwapper(FALSE, U_ASCII_FAMILY, outIsBigEndian, outCharset, &errorCode);
ds[TYPE_LE]=NULL;
ds[TYPE_E]= i==TYPE_E ? NULL : udata_openSwapper(TRUE, U_EBCDIC_FAMILY, outIsBigEndian, outCharset, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_openSwapper() failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
for(i=0; i<TYPE_COUNT; ++i) {
if(ds[i]!=NULL) {
ds[i]->printError=printPackageError;
ds[i]->printErrorContext=stderr;
}
}
dsLocalToOut=ds[makeTypeEnum(U_CHARSET_FAMILY, U_IS_BIG_ENDIAN)];
// create the file and write its contents
file=fopen(filename, "wb");
if(file==NULL) {
fprintf(stderr, "icupkg: unable to create file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
// swap and write the header
if(dsLocalToOut!=NULL) {
udata_swapDataHeader(dsLocalToOut, header, headerLength, header, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_swapDataHeader(local to out) failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
}
length=(int32_t)fwrite(header, 1, headerLength, file);
if(length!=headerLength) {
fprintf(stderr, "icupkg: unable to write complete header to file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
// prepare and swap the package name with a tree separator
// for prepending to item names
strcat(prefix, U_TREE_ENTRY_SEP_STRING);
prefixLength=(int32_t)strlen(prefix);
if(dsLocalToOut!=NULL) {
dsLocalToOut->swapInvChars(dsLocalToOut, prefix, prefixLength, prefix, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: swapInvChars(output package name) failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
// swap and sort the item names (sorting needs to be done in the output charset)
dsLocalToOut->swapInvChars(dsLocalToOut, inStrings, inStringTop, inStrings, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: swapInvChars(item names) failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
sortItems();
}
// create the output item names in sorted order, with the package name prepended to each
for(i=0; i<itemCount; ++i) {
length=(int32_t)strlen(items[i].name);
name=allocString(FALSE, length+prefixLength);
memcpy(name, prefix, prefixLength);
memcpy(name+prefixLength, items[i].name, length+1);
items[i].name=name;
}
// calculate offsets for item names and items, pad to 16-align items
// align only the first item; each item's length is a multiple of 16
basenameOffset=4+8*itemCount;
offset=basenameOffset+outStringTop;
if((length=(offset&15))!=0) {
length=16-length;
memset(allocString(FALSE, length-1), 0xaa, length);
offset+=length;
}
// write the table of contents
// first the itemCount
outInt32=itemCount;
if(dsLocalToOut!=NULL) {
dsLocalToOut->swapArray32(dsLocalToOut, &outInt32, 4, &outInt32, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: swapArray32(item count) failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
}
length=(int32_t)fwrite(&outInt32, 1, 4, file);
if(length!=4) {
fprintf(stderr, "icupkg: unable to write complete item count to file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
// then write the item entries (and collect the maxItemLength)
maxItemLength=0;
for(i=0; i<itemCount; ++i) {
entry.nameOffset=(uint32_t)(basenameOffset+(items[i].name-outStrings));
entry.dataOffset=(uint32_t)offset;
if(dsLocalToOut!=NULL) {
dsLocalToOut->swapArray32(dsLocalToOut, &entry, 8, &entry, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: swapArray32(item entry %ld) failed - %s\n", (long)i, u_errorName(errorCode));
exit(errorCode);
}
}
length=(int32_t)fwrite(&entry, 1, 8, file);
if(length!=8) {
fprintf(stderr, "icupkg: unable to write complete item entry %ld to file \"%s\"\n", (long)i, filename);
exit(U_FILE_ACCESS_ERROR);
}
length=items[i].length;
if(length>maxItemLength) {
maxItemLength=length;
}
offset+=length;
}
// write the item names
length=(int32_t)fwrite(outStrings, 1, outStringTop, file);
if(length!=outStringTop) {
fprintf(stderr, "icupkg: unable to write complete item names to file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
// write the items
for(pItem=items, i=0; i<itemCount; ++pItem, ++i) {
int32_t type=makeTypeEnum(pItem->type);
if(ds[type]!=NULL) {
// swap each item from its platform properties to the desired ones
udata_swap(
ds[type],
pItem->data, pItem->length, pItem->data,
&errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_swap(item %ld) failed - %s\n", (long)i, u_errorName(errorCode));
exit(errorCode);
}
}
length=(int32_t)fwrite(pItem->data, 1, pItem->length, file);
if(length!=pItem->length) {
fprintf(stderr, "icupkg: unable to write complete item %ld to file \"%s\"\n", (long)i, filename);
exit(U_FILE_ACCESS_ERROR);
}
}
if(ferror(file)) {
fprintf(stderr, "icupkg: unable to write complete file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
fclose(file);
for(i=0; i<TYPE_COUNT; ++i) {
udata_closeSwapper(ds[i]);
}
}
int32_t
Package::findItem(const char *name, int32_t length) const {
int32_t i, start, limit;
int result;
/* do a binary search for the string */
start=0;
limit=itemCount;
while(start<limit) {
i=(start+limit)/2;
if(length>=0) {
result=strncmp(name, items[i].name, length);
} else {
result=strcmp(name, items[i].name);
}
if(result==0) {
/* found */
if(length>=0) {
/*
* if we compared just prefixes, then we may need to back up
* to the first item with this prefix
*/
while(i>0 && 0==strncmp(name, items[i-1].name, length)) {
--i;
}
}
return i;
} else if(result<0) {
limit=i;
} else /* result>0 */ {
start=i+1;
}
}
return ~start; /* not found, return binary-not of the insertion point */
}
void
Package::findItems(const char *pattern) {
const char *wild;
if(pattern==NULL || *pattern==0) {
findNextIndex=-1;
return;
}
findPrefix=pattern;
findSuffix=NULL;
findSuffixLength=0;
wild=strchr(pattern, '*');
if(wild==NULL) {
// no wildcard
findPrefixLength=(int32_t)strlen(pattern);
} else {
// one wildcard
findPrefixLength=(int32_t)(wild-pattern);
findSuffix=wild+1;
findSuffixLength=(int32_t)strlen(findSuffix);
if(NULL!=strchr(findSuffix, '*')) {
// two or more wildcards
fprintf(stderr, "icupkg: syntax error (more than one '*') in item pattern \"%s\"\n", pattern);
exit(U_PARSE_ERROR);
}
}
if(findPrefixLength==0) {
findNextIndex=0;
} else {
findNextIndex=findItem(findPrefix, findPrefixLength);
}
}
int32_t
Package::findNextItem() {
const char *name, *middle, *treeSep;
int32_t idx, nameLength, middleLength;
if(findNextIndex<0) {
return -1;
}
while(findNextIndex<itemCount) {
idx=findNextIndex++;
name=items[idx].name;
nameLength=(int32_t)strlen(name);
if(nameLength<(findPrefixLength+findSuffixLength)) {
// item name too short for prefix & suffix
continue;
}
if(findPrefixLength>0 && 0!=memcmp(findPrefix, name, findPrefixLength)) {
// left the range of names with this prefix
break;
}
middle=name+findPrefixLength;
middleLength=nameLength-findPrefixLength-findSuffixLength;
if(findSuffixLength>0 && 0!=memcmp(findSuffix, name+(nameLength-findSuffixLength), findSuffixLength)) {
// suffix does not match
continue;
}
// prefix & suffix match
if(matchMode&MATCH_NOSLASH) {
treeSep=strchr(middle, U_TREE_ENTRY_SEP_CHAR);
if(treeSep!=NULL && (treeSep-middle)<middleLength) {
// the middle (matching the * wildcard) contains a tree separator /
continue;
}
}
// found a matching item
return idx;
}
// no more items
findNextIndex=-1;
return -1;
}
void
Package::setMatchMode(uint32_t mode) {
matchMode=mode;
}
void
Package::addItem(const char *name) {
addItem(name, NULL, 0, FALSE, U_ICUDATA_TYPE_LETTER[0]);
}
void
Package::addItem(const char *name, uint8_t *data, int32_t length, UBool isDataOwned, char type) {
int32_t idx;
idx=findItem(name);
if(idx<0) {
// new item, make space at the insertion point
if(itemCount>=MAX_FILE_COUNT) {
fprintf(stderr, "icupkg: too many items, maximum is %d\n", MAX_FILE_COUNT);
exit(U_BUFFER_OVERFLOW_ERROR);
}
// move the following items down
idx=~idx;
if(idx<itemCount) {
memmove(items+idx+1, items+idx, (itemCount-idx)*sizeof(Item));
}
++itemCount;
// reset this Item entry
memset(items+idx, 0, sizeof(Item));
// copy the item's name
items[idx].name=allocString(TRUE, strlen(name));
strcpy(items[idx].name, name);
pathToTree(items[idx].name);
} else {
// same-name item found, replace it
if(items[idx].isDataOwned) {
free(items[idx].data);
}
// keep the item's name since it is the same
}
// set the item's data
items[idx].data=data;
items[idx].length=length;
items[idx].isDataOwned=isDataOwned;
items[idx].type=type;
}
void
Package::addFile(const char *filesPath, const char *name) {
uint8_t *data;
int32_t length;
char type;
data=readFile(filesPath, name, length, type);
// readFile() exits the tool if it fails
addItem(name, data, length, TRUE, type);
}
void
Package::addItems(const Package &listPkg) {
const Item *pItem;
int32_t i;
for(pItem=listPkg.items, i=0; i<listPkg.itemCount; ++pItem, ++i) {
addItem(pItem->name, pItem->data, pItem->length, FALSE, pItem->type);
}
}
void
Package::removeItem(int32_t idx) {
if(idx>=0) {
// remove the item
if(items[idx].isDataOwned) {
free(items[idx].data);
}
// move the following items up
if((idx+1)<itemCount) {
memmove(items+idx, items+idx+1, (itemCount-(idx+1))*sizeof(Item));
}
--itemCount;
if(idx<=findNextIndex) {
--findNextIndex;
}
}
}
void
Package::removeItems(const char *pattern) {
int32_t idx;
findItems(pattern);
while((idx=findNextItem())>=0) {
removeItem(idx);
}
}
void
Package::removeItems(const Package &listPkg) {
const Item *pItem;
int32_t i;
for(pItem=listPkg.items, i=0; i<listPkg.itemCount; ++pItem, ++i) {
removeItems(pItem->name);
}
}
void
Package::extractItem(const char *filesPath, const char *outName, int32_t idx, char outType) {
char filename[1024];
UDataSwapper *ds;
FILE *file;
Item *pItem;
int32_t fileLength;
uint8_t itemCharset, outCharset;
UBool itemIsBigEndian, outIsBigEndian;
if(idx<0 || itemCount<=idx) {
return;
}
pItem=items+idx;
// swap the data to the outType
// outType==0: don't swap
if(outType!=0 && pItem->type!=outType) {
// open the swapper
UErrorCode errorCode=U_ZERO_ERROR;
makeTypeProps(pItem->type, itemCharset, itemIsBigEndian);
makeTypeProps(outType, outCharset, outIsBigEndian);
ds=udata_openSwapper(itemIsBigEndian, itemCharset, outIsBigEndian, outCharset, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_openSwapper(item %ld) failed - %s\n",
(long)idx, u_errorName(errorCode));
exit(errorCode);
}
ds->printError=printPackageError;
ds->printErrorContext=stderr;
// swap the item from its platform properties to the desired ones
udata_swap(ds, pItem->data, pItem->length, pItem->data, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: udata_swap(item %ld) failed - %s\n", (long)idx, u_errorName(errorCode));
exit(errorCode);
}
udata_closeSwapper(ds);
}
// create the file and write its contents
makeFullFilenameAndDirs(filesPath, outName, filename, (int32_t)sizeof(filename));
file=fopen(filename, "wb");
if(file==NULL) {
fprintf(stderr, "icupkg: unable to create file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
fileLength=(int32_t)fwrite(pItem->data, 1, pItem->length, file);
if(ferror(file) || fileLength!=pItem->length) {
fprintf(stderr, "icupkg: unable to write complete file \"%s\"\n", filename);
exit(U_FILE_ACCESS_ERROR);
}
fclose(file);
}
void
Package::extractItem(const char *filesPath, int32_t idx, char outType) {
extractItem(filesPath, items[idx].name, idx, outType);
}
void
Package::extractItems(const char *filesPath, const char *pattern, char outType) {
int32_t idx;
findItems(pattern);
while((idx=findNextItem())>=0) {
extractItem(filesPath, idx, outType);
}
}
void
Package::extractItems(const char *filesPath, const Package &listPkg, char outType) {
const Item *pItem;
int32_t i;
for(pItem=listPkg.items, i=0; i<listPkg.itemCount; ++pItem, ++i) {
extractItems(filesPath, pItem->name, outType);
}
}
int32_t
Package::getItemCount() const {
return itemCount;
}
const Item *
Package::getItem(int32_t idx) const {
if (0 <= idx && idx < itemCount) {
return &items[idx];
}
return NULL;
}
void
Package::checkDependency(void *context, const char *itemName, const char *targetName) {
// check dependency: make sure the target item is in the package
Package *me=(Package *)context;
if(me->findItem(targetName)<0) {
me->isMissingItems=TRUE;
fprintf(stderr, "Item %s depends on missing item %s\n", itemName, targetName);
}
}
UBool
Package::checkDependencies() {
isMissingItems=FALSE;
enumDependencies(this, checkDependency);
return (UBool)!isMissingItems;
}
void
Package::enumDependencies(void *context, CheckDependency check) {
int32_t i;
for(i=0; i<itemCount; ++i) {
enumDependencies(items+i, context, check);
}
}
char *
Package::allocString(UBool in, int32_t length) {
char *p;
int32_t top;
if(in) {
top=inStringTop;
p=inStrings+top;
} else {
top=outStringTop;
p=outStrings+top;
}
top+=length+1;
if(top>STRING_STORE_SIZE) {
fprintf(stderr, "icupkg: string storage overflow\n");
exit(U_BUFFER_OVERFLOW_ERROR);
}
if(in) {
inStringTop=top;
} else {
outStringTop=top;
}
return p;
}
void
Package::sortItems() {
UErrorCode errorCode=U_ZERO_ERROR;
uprv_sortArray(items, itemCount, (int32_t)sizeof(Item), compareItems, NULL, FALSE, &errorCode);
if(U_FAILURE(errorCode)) {
fprintf(stderr, "icupkg: sorting item names failed - %s\n", u_errorName(errorCode));
exit(errorCode);
}
}
U_NAMESPACE_END