/*
- * Buffered file io for ffmpeg system
+ * buffered file I/O
* Copyright (c) 2001 Fabrice Bellard
*
* This file is part of Libav.
#include "libavutil/avstring.h"
#include "avformat.h"
#include <fcntl.h>
-#if HAVE_SETMODE
+#if HAVE_IO_H
#include <io.h>
#endif
+#if HAVE_UNISTD_H
#include <unistd.h>
+#endif
#include <sys/stat.h>
#include <stdlib.h>
#include "os_support.h"
return (intptr_t) h->priv_data;
}
+static int file_check(URLContext *h, int mask)
+{
+ struct stat st;
+ int ret = stat(h->filename, &st);
+ if (ret < 0)
+ return AVERROR(errno);
+
+ ret |= st.st_mode&S_IRUSR ? mask&AVIO_FLAG_READ : 0;
+ ret |= st.st_mode&S_IWUSR ? mask&AVIO_FLAG_WRITE : 0;
+
+ return ret;
+}
+
#if CONFIG_FILE_PROTOCOL
static int file_open(URLContext *h, const char *filename, int flags)
av_strstart(filename, "file:", &filename);
- if (flags & AVIO_RDWR) {
+ if (flags & AVIO_FLAG_WRITE && flags & AVIO_FLAG_READ) {
access = O_CREAT | O_TRUNC | O_RDWR;
- } else if (flags & AVIO_WRONLY) {
+ } else if (flags & AVIO_FLAG_WRITE) {
access = O_CREAT | O_TRUNC | O_WRONLY;
} else {
access = O_RDONLY;
.url_seek = file_seek,
.url_close = file_close,
.url_get_file_handle = file_get_handle,
+ .url_check = file_check,
};
#endif /* CONFIG_FILE_PROTOCOL */
fd = strtol(filename, &final, 10);
if((filename == final) || *final ) {/* No digits found, or something like 10ab */
- if (flags & AVIO_WRONLY) {
+ if (flags & AVIO_FLAG_WRITE) {
fd = 1;
} else {
fd = 0;
.url_read = file_read,
.url_write = file_write,
.url_get_file_handle = file_get_handle,
+ .url_check = file_check,
};
#endif /* CONFIG_PIPE_PROTOCOL */