mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-04 23:18:26 -05:00
191 lines
4.8 KiB
C
Executable File
191 lines
4.8 KiB
C
Executable File
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "internal.h"
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#include "mem.h"
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#include <stdarg.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_IO_H
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#include <io.h>
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#endif
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#ifdef _WIN32
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#undef open
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#undef lseek
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#undef stat
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#undef fstat
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#include <windows.h>
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#include <share.h>
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#include <errno.h>
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#include "wchar_filename.h"
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static int win32_open(const char *filename_utf8, int oflag, int pmode)
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{
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int fd;
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wchar_t *filename_w;
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/* convert UTF-8 to wide chars */
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if (utf8towchar(filename_utf8, &filename_w))
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return -1;
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if (!filename_w)
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goto fallback;
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fd = _wsopen(filename_w, oflag, SH_DENYNO, pmode);
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av_freep(&filename_w);
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if (fd != -1 || (oflag & O_CREAT))
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return fd;
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fallback:
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/* filename may be in CP_ACP */
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return _sopen(filename_utf8, oflag, SH_DENYNO, pmode);
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}
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#define open win32_open
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#endif
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int avpriv_open(const char *filename, int flags, ...)
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{
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int fd;
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unsigned int mode = 0;
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va_list ap;
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va_start(ap, flags);
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if (flags & O_CREAT)
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mode = va_arg(ap, unsigned int);
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va_end(ap);
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#ifdef O_CLOEXEC
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flags |= O_CLOEXEC;
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#endif
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#ifdef O_NOINHERIT
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flags |= O_NOINHERIT;
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#endif
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fd = open(filename, flags, mode);
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#if HAVE_FCNTL
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if (fd != -1) {
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if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
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av_log(NULL, AV_LOG_DEBUG, "Failed to set close on exec\n");
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}
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#endif
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return fd;
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}
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typedef struct FileLogContext {
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const AVClass *class;
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int log_offset;
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void *log_ctx;
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} FileLogContext;
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static const AVClass file_log_ctx_class = {
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.class_name = "TEMPFILE",
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.item_name = av_default_item_name,
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.option = NULL,
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.version = LIBAVUTIL_VERSION_INT,
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.log_level_offset_offset = offsetof(FileLogContext, log_offset),
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.parent_log_context_offset = offsetof(FileLogContext, log_ctx),
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};
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int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx)
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{
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FileLogContext file_log_ctx = { &file_log_ctx_class, log_offset, log_ctx };
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int fd = -1;
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#if !HAVE_MKSTEMP
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void *ptr= tempnam(NULL, prefix);
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if(!ptr)
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ptr= tempnam(".", prefix);
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*filename = av_strdup(ptr);
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#undef free
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free(ptr);
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#else
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size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
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*filename = av_malloc(len);
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#endif
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/* -----common section-----*/
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if (!*filename) {
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av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
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return AVERROR(ENOMEM);
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}
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#if !HAVE_MKSTEMP
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# ifndef O_BINARY
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# define O_BINARY 0
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# endif
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# ifndef O_EXCL
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# define O_EXCL 0
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# endif
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fd = open(*filename, O_RDWR | O_BINARY | O_CREAT | O_EXCL, 0600);
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#else
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snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
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fd = mkstemp(*filename);
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#if defined(_WIN32) || defined (__ANDROID__) || defined(__DJGPP__)
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if (fd < 0) {
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snprintf(*filename, len, "./%sXXXXXX", prefix);
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fd = mkstemp(*filename);
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}
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#endif
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#endif
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/* -----common section-----*/
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if (fd < 0) {
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int err = AVERROR(errno);
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av_log(&file_log_ctx, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
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av_freep(filename);
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return err;
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}
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return fd; /* success */
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}
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FILE *av_fopen_utf8(const char *path, const char *mode)
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{
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int fd;
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int access;
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const char *m = mode;
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switch (*m++) {
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case 'r': access = O_RDONLY; break;
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case 'w': access = O_CREAT|O_WRONLY|O_TRUNC; break;
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case 'a': access = O_CREAT|O_WRONLY|O_APPEND; break;
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default :
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errno = EINVAL;
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return NULL;
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}
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while (*m) {
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if (*m == '+') {
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access &= ~(O_RDONLY | O_WRONLY);
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access |= O_RDWR;
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} else if (*m == 'b') {
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#ifdef O_BINARY
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access |= O_BINARY;
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#endif
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} else if (*m) {
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errno = EINVAL;
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return NULL;
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}
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m++;
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}
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fd = avpriv_open(path, access, 0666);
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if (fd == -1)
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return NULL;
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return fdopen(fd, mode);
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}
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