From 313176565cf813a1a9cd5b8bc3f59c0b9696390e Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Thu, 30 Sep 2010 13:21:42 +0200 Subject: file: implement url_check() callback in the file and pipe protocols Signed-off-by: Anton Khirnov --- libavformat/file.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'libavformat/file.c') diff --git a/libavformat/file.c b/libavformat/file.c index 31067ede69..1dcb2c8ac5 100644 --- a/libavformat/file.c +++ b/libavformat/file.c @@ -95,6 +95,20 @@ static int file_close(URLContext *h) return close(fd); } +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_RDONLY : 0; + ret |= st.st_mode&S_IWUSR ? mask&AVIO_WRONLY : 0; + ret |= st.st_mode&S_IWUSR && st.st_mode&S_IRUSR ? mask&AVIO_RDWR : 0; + + return ret; +} + URLProtocol ff_file_protocol = { .name = "file", .url_open = file_open, @@ -103,6 +117,7 @@ URLProtocol ff_file_protocol = { .url_seek = file_seek, .url_close = file_close, .url_get_file_handle = file_get_handle, + .url_check = file_check, }; #endif /* CONFIG_FILE_PROTOCOL */ @@ -137,6 +152,7 @@ URLProtocol ff_pipe_protocol = { .url_read = file_read, .url_write = file_write, .url_get_file_handle = file_get_handle, + .url_check = file_check, }; #endif /* CONFIG_PIPE_PROTOCOL */ -- cgit v1.2.3