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// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
*
* Copyright (C) 1999-2010, International Business Machines
* Corporation and others. All Rights Reserved.
*
*******************************************************************************
* file name: unewdata.c
* encoding: US-ASCII
* tab size: 8 (not used)
* indentation:4
*
* created on: 1999oct25
* created by: Markus W. Scherer
*/
#include <stdio.h>
#include "unicode/utypes.h"
#include "unicode/putil.h"
#include "unicode/ustring.h"
#include "cmemory.h"
#include "cstring.h"
#include "filestrm.h"
#include "unicode/udata.h"
#include "unewdata.h"
struct UNewDataMemory {
FileStream *file;
uint16_t headerSize;
uint8_t magic1, magic2;
};
U_CAPI UNewDataMemory * U_EXPORT2
udata_create(const char *dir, const char *type, const char *name,
const UDataInfo *pInfo,
const char *comment,
UErrorCode *pErrorCode) {
UNewDataMemory *pData;
uint16_t headerSize, commentLength;
char filename[512];
uint8_t bytes[16];
int32_t length;
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
return NULL;
} else if(name==NULL || *name==0 || pInfo==NULL) {
*pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
return NULL;
}
/* allocate the data structure */
pData=(UNewDataMemory *)uprv_malloc(sizeof(UNewDataMemory));
if(pData==NULL) {
*pErrorCode=U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
/* Check that the full path won't be too long */
length = 0; /* Start with nothing */
if(dir != NULL && *dir !=0) /* Add directory length if one was given */
{
length += strlen(dir);
/* Add 1 if dir doesn't end with path sep */
if (dir[strlen(dir) - 1]!= U_FILE_SEP_CHAR) {
length++;
}
}
length += strlen(name); /* Add the filename length */
if(type != NULL && *type !=0) { /* Add directory length if given */
length += strlen(type);
}
/* LDH buffer Length error check */
if(length > ((int32_t)sizeof(filename) - 1))
{
*pErrorCode = U_BUFFER_OVERFLOW_ERROR;
uprv_free(pData);
return NULL;
}
/* open the output file */
if(dir!=NULL && *dir!=0) { /* if dir has a value, we prepend it to the filename */
char *p=filename+strlen(dir);
uprv_strcpy(filename, dir);
if (*(p-1)!=U_FILE_SEP_CHAR) {
*p++=U_FILE_SEP_CHAR;
*p=0;
}
} else { /* otherwise, we'll output to the current dir */
filename[0]=0;
}
uprv_strcat(filename, name);
if(type!=NULL && *type!=0) {
uprv_strcat(filename, ".");
uprv_strcat(filename, type);
}
pData->file=T_FileStream_open(filename, "wb");
if(pData->file==NULL) {
uprv_free(pData);
*pErrorCode=U_FILE_ACCESS_ERROR;
return NULL;
}
/* write the header information */
headerSize=(uint16_t)(pInfo->size+4);
if(comment!=NULL && *comment!=0) {
commentLength=(uint16_t)(uprv_strlen(comment)+1);
headerSize+=commentLength;
} else {
commentLength=0;
}
/* write the size of the header, take padding into account */
pData->headerSize=(uint16_t)((headerSize+15)&~0xf);
pData->magic1=0xda;
pData->magic2=0x27;
T_FileStream_write(pData->file, &pData->headerSize, 4);
/* write the information data */
T_FileStream_write(pData->file, pInfo, pInfo->size);
/* write the comment */
if(commentLength>0) {
T_FileStream_write(pData->file, comment, commentLength);
}
/* write padding bytes to align the data section to 16 bytes */
headerSize&=0xf;
if(headerSize!=0) {
headerSize=(uint16_t)(16-headerSize);
uprv_memset(bytes, 0, headerSize);
T_FileStream_write(pData->file, bytes, headerSize);
}
return pData;
}
U_CAPI uint32_t U_EXPORT2
udata_finish(UNewDataMemory *pData, UErrorCode *pErrorCode) {
uint32_t fileLength=0;
if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) {
return 0;
}
if(pData!=NULL) {
if(pData->file!=NULL) {
/* fflush(pData->file);*/
fileLength=T_FileStream_size(pData->file);
if(T_FileStream_error(pData->file)) {
*pErrorCode=U_FILE_ACCESS_ERROR;
} else {
fileLength-=pData->headerSize;
}
T_FileStream_close(pData->file);
}
uprv_free(pData);
}
return fileLength;
}
/* dummy UDataInfo cf. udata.h */
static const UDataInfo dummyDataInfo = {
sizeof(UDataInfo),
0,
U_IS_BIG_ENDIAN,
U_CHARSET_FAMILY,
U_SIZEOF_UCHAR,
0,
{ 0, 0, 0, 0 }, /* dummy dataFormat */
{ 0, 0, 0, 0 }, /* dummy formatVersion */
{ 0, 0, 0, 0 } /* dummy dataVersion */
};
U_CAPI void U_EXPORT2
udata_createDummy(const char *dir, const char *type, const char *name, UErrorCode *pErrorCode) {
if(U_SUCCESS(*pErrorCode)) {
udata_finish(udata_create(dir, type, name, &dummyDataInfo, NULL, pErrorCode), pErrorCode);
if(U_FAILURE(*pErrorCode)) {
fprintf(stderr, "error %s writing dummy data file %s" U_FILE_SEP_STRING "%s.%s\n",
u_errorName(*pErrorCode), dir, name, type);
exit(*pErrorCode);
}
}
}
U_CAPI void U_EXPORT2
udata_write8(UNewDataMemory *pData, uint8_t byte) {
if(pData!=NULL && pData->file!=NULL) {
T_FileStream_write(pData->file, &byte, 1);
}
}
U_CAPI void U_EXPORT2
udata_write16(UNewDataMemory *pData, uint16_t word) {
if(pData!=NULL && pData->file!=NULL) {
T_FileStream_write(pData->file, &word, 2);
}
}
U_CAPI void U_EXPORT2
udata_write32(UNewDataMemory *pData, uint32_t wyde) {
if(pData!=NULL && pData->file!=NULL) {
T_FileStream_write(pData->file, &wyde, 4);
}
}
U_CAPI void U_EXPORT2
udata_writeBlock(UNewDataMemory *pData, const void *s, int32_t length) {
if(pData!=NULL && pData->file!=NULL) {
if(length>0) {
T_FileStream_write(pData->file, s, length);
}
}
}
U_CAPI void U_EXPORT2
udata_writePadding(UNewDataMemory *pData, int32_t length) {
static const uint8_t padding[16]={
0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa,
0xaa, 0xaa, 0xaa, 0xaa
};
if(pData!=NULL && pData->file!=NULL) {
while(length>=16) {
T_FileStream_write(pData->file, padding, 16);
length-=16;
}
if(length>0) {
T_FileStream_write(pData->file, padding, length);
}
}
}
U_CAPI void U_EXPORT2
udata_writeString(UNewDataMemory *pData, const char *s, int32_t length) {
if(pData!=NULL && pData->file!=NULL) {
if(length==-1) {
length=(int32_t)uprv_strlen(s);
}
if(length>0) {
T_FileStream_write(pData->file, s, length);
}
}
}
U_CAPI void U_EXPORT2
udata_writeUString(UNewDataMemory *pData, const UChar *s, int32_t length) {
if(pData!=NULL && pData->file!=NULL) {
if(length==-1) {
length=u_strlen(s);
}
if(length>0) {
T_FileStream_write(pData->file, s, length*sizeof(UChar));
}
}
}
/*
* Hey, Emacs, please set the following:
*
* Local Variables:
* indent-tabs-mode: nil
* End:
*
*/
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