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/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**********/
// "liveMedia"
// Copyright (c) 1996-2005 Live Networks, Inc. All rights reserved.
// Common routines for opening/closing named input files
// Implementation
#if (defined(__WIN32__) || defined(_WIN32)) && !defined(_WIN32_WCE)
#include <io.h>
#include <fcntl.h>
#endif
#ifndef _WIN32_WCE
#include <sys/stat.h>
#endif
#include <string.h>
#include "InputFile.hh"
FILE* OpenInputFile(UsageEnvironment& env, char const* fileName) {
FILE* fid;
// Check for a special case file name: "stdin"
if (strcmp(fileName, "stdin") == 0) {
fid = stdin;
#if defined(__WIN32__) || defined(_WIN32)
_setmode(_fileno(stdin), _O_BINARY); // convert to binary mode
#endif
} else {
fid = fopen(fileName, "rb");
if (fid == NULL) {
env.setResultMsg("unable to open file \"",fileName, "\"");
}
}
return fid;
}
void CloseInputFile(FILE* fid) {
// Don't close 'stdin', in case we want to use it again later.
if (fid != NULL && fid != stdin) fclose(fid);
}
u_int64_t GetFileSize(char const* fileName, FILE* fid) {
u_int64_t fileSize = 0; // by default
if (fid != stdin) {
#if !defined(_WIN32_WCE)
if (fileName == NULL) {
#endif
if (SeekFile64(fid, 0, SEEK_END) >= 0) {
fileSize = TellFile64(fid);
if (fileSize == (u_int64_t)-1) fileSize = 0; // TellFile64() failed
SeekFile64(fid, 0, SEEK_SET);
}
#if !defined(_WIN32_WCE)
} else {
struct stat sb;
if (stat(fileName, &sb) == 0) {
fileSize = sb.st_size;
}
}
#endif
}
return fileSize;
}
u_int64_t SeekFile64(FILE *fid, int64_t offset, int whence) {
clearerr(fid);
fflush(fid);
#if (defined(__WIN32__) || defined(_WIN32)) && !defined(_WIN32_WCE)
return _lseeki64(_fileno(fid), offset, whence) == (int64_t)-1 ? -1 : 0;
#else
#if defined(_WIN32_WCE)
return fseek(fid, (long)(offset), whence);
#else
return fseeko(fid, (off_t)(offset), whence);
#endif
#endif
}
u_int64_t TellFile64(FILE *fid) {
clearerr(fid);
fflush(fid);
#if (defined(__WIN32__) || defined(_WIN32)) && !defined(_WIN32_WCE)
return _telli64(_fileno(fid));
#else
#if defined(_WIN32_WCE)
return ftell(fid);
#else
return ftello(fid);
#endif
#endif
}
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