2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
32 #if defined(_WIN32) && !defined(__MINGW32CE__)
40 #include "wchar_filename.h"
42 static int win32_open(const char *filename_utf8, int oflag, int pmode)
47 /* convert UTF-8 to wide chars */
48 if (utf8towchar(filename_utf8, &filename_w))
53 fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
54 av_freep(&filename_w);
56 if (fd != -1 || (oflag & O_CREAT))
60 /* filename may be in CP_ACP */
61 return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
63 #define open win32_open
66 int avpriv_open(const char *filename, int flags, ...)
69 unsigned int mode = 0;
74 mode = va_arg(ap, unsigned int);
84 fd = open(filename, flags, mode);
87 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
88 av_log(NULL, AV_LOG_DEBUG, "Failed to set close on exec\n");
95 typedef struct FileLogContext {
101 static const AVClass file_log_ctx_class = {
102 "TEMPFILE", av_default_item_name, NULL, LIBAVUTIL_VERSION_INT,
103 offsetof(FileLogContext, log_offset), offsetof(FileLogContext, log_ctx)
106 int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx)
108 FileLogContext file_log_ctx = { &file_log_ctx_class, log_offset, log_ctx };
111 void *ptr= tempnam(NULL, prefix);
113 ptr= tempnam(".", prefix);
114 *filename = av_strdup(ptr);
118 size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
119 *filename = av_malloc(len);
121 /* -----common section-----*/
123 av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
124 return AVERROR(ENOMEM);
133 fd = open(*filename, O_RDWR | O_BINARY | O_CREAT | O_EXCL, 0600);
135 snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
136 fd = mkstemp(*filename);
137 #if defined(_WIN32) || defined (__ANDROID__)
139 snprintf(*filename, len, "./%sXXXXXX", prefix);
140 fd = mkstemp(*filename);
144 /* -----common section-----*/
146 int err = AVERROR(errno);
147 av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
151 return fd; /* success */
154 FILE *av_fopen_utf8(const char *path, const char *mode)
158 const char *m = mode;
161 case 'r': access = O_RDONLY; break;
162 case 'w': access = O_CREAT|O_WRONLY|O_TRUNC; break;
163 case 'a': access = O_CREAT|O_WRONLY|O_APPEND; break;
170 access &= ~(O_RDONLY | O_WRONLY);
172 } else if (*m == 'b') {
182 fd = avpriv_open(path, access, 0666);
185 return fdopen(fd, mode);