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lavf/file: file_check: Handle file URLs that start with "file:"

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Handle the URL analog to file_open, it may contain a "file:"
prefix. Skip it. Make access checks to file URLs starting
with "file:" work.

Fix part of ticket #3249.

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
This commit is contained in:
Alexander Strasser 2014-01-02 19:00:15 +01:00
parent 262451878b
commit 77015443a8
1 changed files with 10 additions and 5 deletions
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15
libavformat/file.c
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@ -104,25 +104,30 @@ static int file_get_handle(URLContext *h)
static int file_check(URLContext *h, int mask)
{
#if HAVE_ACCESS && defined(R_OK)
int ret = 0;
if (access(h->filename, F_OK) < 0)
const char *filename = h->filename;
av_strstart(filename, "file:", &filename);
{
#if HAVE_ACCESS && defined(R_OK)
if (access(filename, F_OK) < 0)
return AVERROR(errno);
if (mask&AVIO_FLAG_READ)
if (access(h->filename, R_OK) >= 0)
if (access(filename, R_OK) >= 0)
ret |= AVIO_FLAG_READ;
if (mask&AVIO_FLAG_WRITE)
if (access(h->filename, W_OK) >= 0)
if (access(filename, W_OK) >= 0)
ret |= AVIO_FLAG_WRITE;
#else
struct stat st;
int ret = stat(h->filename, &st);
ret = stat(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;
#endif
}
return ret;
}