mirror of
https://github.com/classilla/tenfourfox.git
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226 lines
4.9 KiB
C
226 lines
4.9 KiB
C
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/*
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******************************************************************************
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*
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* Copyright (C) 1997-2011, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************
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*
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* File FILESTRM.C
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*
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* @author Glenn Marcy
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*
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* Modification History:
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*
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* Date Name Description
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* 5/8/98 gm Created
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* 03/02/99 stephen Reordered params in ungetc to match stdio
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* Added wopen
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* 3/29/99 helena Merged Stephen and Bertrand's changes.
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*
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******************************************************************************
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*/
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#include "filestrm.h"
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#include "cmemory.h"
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#include <stdio.h>
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U_CAPI FileStream* U_EXPORT2
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T_FileStream_open(const char* filename, const char* mode)
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{
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if(filename != NULL && *filename != 0 && mode != NULL && *mode != 0) {
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FILE *file = fopen(filename, mode);
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return (FileStream*)file;
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} else {
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return NULL;
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}
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}
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/*
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U_CAPI FileStream* U_EXPORT2
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T_FileStream_wopen(const wchar_t* filename, const wchar_t* mode)
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{
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// TBD: _wfopen is believed to be MS-specific?
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#if U_PLATFORM_USES_ONLY_WIN32_API
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FILE* result = _wfopen(filename, mode);
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return (FileStream*)result;
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#else
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size_t fnMbsSize, mdMbsSize;
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char *fn, *md;
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FILE *result;
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// convert from wchar_t to char
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fnMbsSize = wcstombs(NULL, filename, ((size_t)-1) >> 1);
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fn = (char*)uprv_malloc(fnMbsSize+2);
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wcstombs(fn, filename, fnMbsSize);
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fn[fnMbsSize] = 0;
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mdMbsSize = wcstombs(NULL, mode, ((size_t)-1) >> 1);
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md = (char*)uprv_malloc(mdMbsSize+2);
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wcstombs(md, mode, mdMbsSize);
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md[mdMbsSize] = 0;
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result = fopen(fn, md);
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uprv_free(fn);
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uprv_free(md);
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return (FileStream*)result;
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#endif
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}
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*/
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U_CAPI void U_EXPORT2
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T_FileStream_close(FileStream* fileStream)
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{
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if (fileStream != 0)
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fclose((FILE*)fileStream);
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}
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U_CAPI UBool U_EXPORT2
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T_FileStream_file_exists(const char* filename)
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{
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FILE* temp = fopen(filename, "r");
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if (temp) {
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fclose(temp);
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return TRUE;
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} else
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return FALSE;
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}
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/*static const int32_t kEOF;
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const int32_t FileStream::kEOF = EOF;*/
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/*
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U_CAPI FileStream*
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T_FileStream_tmpfile()
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{
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FILE* file = tmpfile();
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return (FileStream*)file;
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}
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*/
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U_CAPI int32_t U_EXPORT2
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T_FileStream_read(FileStream* fileStream, void* addr, int32_t len)
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{
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return fread(addr, 1, len, (FILE*)fileStream);
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_write(FileStream* fileStream, const void* addr, int32_t len)
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{
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return fwrite(addr, 1, len, (FILE*)fileStream);
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}
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U_CAPI void U_EXPORT2
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T_FileStream_rewind(FileStream* fileStream)
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{
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rewind((FILE*)fileStream);
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_putc(FileStream* fileStream, int32_t ch)
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{
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int32_t c = fputc(ch, (FILE*)fileStream);
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return c;
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}
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U_CAPI int U_EXPORT2
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T_FileStream_getc(FileStream* fileStream)
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{
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int c = fgetc((FILE*)fileStream);
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return c;
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_ungetc(int32_t ch, FileStream* fileStream)
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{
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int32_t c = ungetc(ch, (FILE*)fileStream);
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return c;
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_peek(FileStream* fileStream)
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{
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int32_t c = fgetc((FILE*)fileStream);
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return ungetc(c, (FILE*)fileStream);
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}
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U_CAPI char* U_EXPORT2
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T_FileStream_readLine(FileStream* fileStream, char* buffer, int32_t length)
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{
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return fgets(buffer, length, (FILE*)fileStream);
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_writeLine(FileStream* fileStream, const char* buffer)
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{
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return fputs(buffer, (FILE*)fileStream);
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}
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U_CAPI int32_t U_EXPORT2
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T_FileStream_size(FileStream* fileStream)
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{
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int32_t savedPos = ftell((FILE*)fileStream);
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int32_t size = 0;
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/*Changes by Bertrand A. D. doesn't affect the current position
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goes to the end of the file before ftell*/
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fseek((FILE*)fileStream, 0, SEEK_END);
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size = (int32_t)ftell((FILE*)fileStream);
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fseek((FILE*)fileStream, savedPos, SEEK_SET);
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return size;
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}
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U_CAPI int U_EXPORT2
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T_FileStream_eof(FileStream* fileStream)
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{
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return feof((FILE*)fileStream);
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}
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/*
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Warning
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This function may not work consistently on all platforms
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(e.g. HP-UX, FreeBSD and MacOSX don't return an error when
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putc is used on a file opened as readonly)
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*/
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U_CAPI int U_EXPORT2
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T_FileStream_error(FileStream* fileStream)
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{
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return (fileStream == 0 || ferror((FILE*)fileStream));
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}
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/* This function doesn't work. */
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/* force the stream to set its error flag*/
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/*U_CAPI void U_EXPORT2
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T_FileStream_setError(FileStream* fileStream)
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{
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fseek((FILE*)fileStream, 99999, SEEK_SET);
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}
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*/
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U_CAPI FileStream* U_EXPORT2
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T_FileStream_stdin(void)
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{
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return (FileStream*)stdin;
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}
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U_CAPI FileStream* U_EXPORT2
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T_FileStream_stdout(void)
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{
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return (FileStream*)stdout;
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}
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U_CAPI FileStream* U_EXPORT2
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T_FileStream_stderr(void)
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{
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return (FileStream*)stderr;
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}
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U_CAPI UBool U_EXPORT2
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T_FileStream_remove(const char* fileName){
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return (remove(fileName) == 0);
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}
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