/* ****************************************************************************** * * Copyright (C) 1997-2001, International Business Machines * Corporation and others. All Rights Reserved. * ****************************************************************************** * * File FILESTRM.C * * @author Glenn Marcy * * Modification History: * * Date Name Description * 5/8/98 gm Created * 03/02/99 stephen Reordered params in ungetc to match stdio * Added wopen * 3/29/99 helena Merged Stephen and Bertrand's changes. * ****************************************************************************** */ #include "filestrm.h" #include "cmemory.h" #include <stdio.h> U_CAPI FileStream* T_FileStream_open(const char* filename, const char* mode) { if(filename != NULL && *filename != 0 && mode != NULL && *mode != 0) { FILE *file = fopen(filename, mode); return (FileStream*)file; } else { return NULL; } } U_CAPI FileStream* T_FileStream_wopen(const wchar_t* filename, const wchar_t* mode) { /* TBD: _wfopen is believed to be MS-specific? */ #if defined(WIN32) && !defined(__WINDOWS__) FILE* result = _wfopen(filename, mode); return (FileStream*)result; #else size_t fnMbsSize, mdMbsSize; char *fn, *md; FILE *result; /* convert from wchar_t to char */ fnMbsSize = wcstombs(NULL, filename, ((size_t)-1) >> 1); fn = (char*)uprv_malloc(fnMbsSize+2); wcstombs(fn, filename, fnMbsSize); fn[fnMbsSize] = 0; mdMbsSize = wcstombs(NULL, mode, ((size_t)-1) >> 1); md = (char*)uprv_malloc(mdMbsSize+2); wcstombs(md, mode, mdMbsSize); md[mdMbsSize] = 0; result = fopen(fn, md); uprv_free(fn); uprv_free(md); return (FileStream*)result; #endif } U_CAPI void T_FileStream_close(FileStream* fileStream) { if (fileStream != 0) fclose((FILE*)fileStream); } U_CAPI UBool T_FileStream_file_exists(const char* filename) { FILE* temp = fopen(filename, "r"); if (temp) { fclose(temp); return TRUE; } else return FALSE; } /*static const int32_t kEOF; const int32_t FileStream::kEOF = EOF;*/ U_CAPI FileStream* T_FileStream_tmpfile() { FILE* file = tmpfile(); return (FileStream*)file; } U_CAPI int32_t T_FileStream_read(FileStream* fileStream, void* addr, int32_t len) { return fread(addr, 1, len, (FILE*)fileStream); } U_CAPI int32_t T_FileStream_write(FileStream* fileStream, const void* addr, int32_t len) { return fwrite(addr, 1, len, (FILE*)fileStream); } U_CAPI void T_FileStream_rewind(FileStream* fileStream) { rewind((FILE*)fileStream); } U_CAPI int32_t T_FileStream_putc(FileStream* fileStream, int32_t ch) { int32_t c = fputc(ch, (FILE*)fileStream); return c; } U_CAPI int T_FileStream_getc(FileStream* fileStream) { int c = fgetc((FILE*)fileStream); return c; } U_CAPI int32_t T_FileStream_ungetc(int32_t ch, FileStream* fileStream) { int32_t c = ungetc(ch, (FILE*)fileStream); return c; } U_CAPI int32_t T_FileStream_peek(FileStream* fileStream) { int32_t c = fgetc((FILE*)fileStream); return ungetc(c, (FILE*)fileStream); } /*Added by Bertrand A. D. */ U_CAPI char * T_FileStream_readLine(FileStream* fileStream, char* buffer, int32_t length) { return fgets(buffer, length, (FILE*)fileStream); } U_CAPI int32_t T_FileStream_writeLine(FileStream* fileStream, const char* buffer) { return fputs(buffer, (FILE*)fileStream); } U_CAPI int32_t T_FileStream_size(FileStream* fileStream) { int32_t savedPos = ftell((FILE*)fileStream); int32_t size = 0; /*Changes by Bertrand A. D. doesn't affect the current position goes to the end of the file before ftell*/ fseek((FILE*)fileStream, 0, SEEK_END); size = ftell((FILE*)fileStream); fseek((FILE*)fileStream, savedPos, SEEK_SET); return size; } U_CAPI int T_FileStream_eof(FileStream* fileStream) { return feof((FILE*)fileStream); } U_CAPI int T_FileStream_error(FileStream* fileStream) { return (fileStream == 0 || ferror((FILE*)fileStream)); } U_CAPI void T_FileStream_setError(FileStream* fileStream) { /* force the stream to set its error flag*/ fseek((FILE*)fileStream, 99999, SEEK_SET); } U_CAPI FileStream* T_FileStream_stdin(void) { return (FileStream*)stdin; } U_CAPI FileStream* T_FileStream_stdout(void) { return (FileStream*)stdout; } U_CAPI FileStream* T_FileStream_stderr(void) { return (FileStream*)stderr; }