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/*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "internal.h"
#include "mem.h"
#include <stdarg.h>
#include <fcntl.h>
#include <sys/stat.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_IO_H
#include <io.h>
#endif
#if defined(_WIN32) && !defined(__MINGW32CE__)
#undef open
#undef lseek
#undef stat
#undef fstat
#include <windows.h>
#include <share.h>
#include <errno.h>
static int win32_open(const char *filename_utf8, int oflag, int pmode)
{
int fd;
int num_chars;
wchar_t *filename_w;
/* convert UTF-8 to wide chars */
num_chars = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, filename_utf8, -1, NULL, 0);
if (num_chars <= 0)
goto fallback;
filename_w = av_mallocz(sizeof(wchar_t) * num_chars);
if (!filename_w) {
errno = ENOMEM;
return -1;
}
MultiByteToWideChar(CP_UTF8, 0, filename_utf8, -1, filename_w, num_chars);
fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
av_freep(&filename_w);
if (fd != -1 || (oflag & O_CREAT))
return fd;
fallback:
/* filename may be in CP_ACP */
return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
}
#define open win32_open
#endif
int avpriv_open(const char *filename, int flags, ...)
{
int fd;
unsigned int mode = 0;
va_list ap;
va_start(ap, flags);
if (flags & O_CREAT)
mode = va_arg(ap, unsigned int);
va_end(ap);
#ifdef O_CLOEXEC
flags |= O_CLOEXEC;
#endif
fd = open(filename, flags, mode);
#if HAVE_FCNTL
if (fd != -1) {
if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
av_log(NULL, AV_LOG_DEBUG, "Failed to set close on exec\n");
}
#endif
return fd;
}
FILE *av_fopen_utf8(const char *path, const char *mode)
{
int fd;
int access;
const char *m = mode;
switch (*m++) {
case 'r': access = O_RDONLY; break;
case 'w': access = O_CREAT|O_WRONLY|O_TRUNC; break;
case 'a': access = O_CREAT|O_WRONLY|O_APPEND; break;
default :
errno = EINVAL;
return NULL;
}
while (*m) {
if (*m == '+') {
access &= ~(O_RDONLY | O_WRONLY);
access |= O_RDWR;
} else if (*m == 'b') {
#ifdef O_BINARY
access |= O_BINARY;
#endif
} else if (*m) {
errno = EINVAL;
return NULL;
}
m++;
}
fd = avpriv_open(path, access, 0666);
if (fd == -1)
return NULL;
return fdopen(fd, mode);
}
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