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file: Fallback to stat() based file_check() when access() or its named flags are unavailable.

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Should fix compilation on native windows
We could also use _access() and literal numbers as flags but i cant test it
and the compilation failure should be fixed ASAP

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-27 04:57:18 +01:00
parent 465becbc4f
commit 16ef48c37f
1 changed files with 10 additions and 0 deletions
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10
libavformat/file.c
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@ -85,6 +85,7 @@ static int file_get_handle(URLContext *h)
static int file_check(URLContext *h, int mask)
{
#if defined(HAVE_ACCESS) && defined(R_OK)
int ret = 0;
if (access(h->filename, F_OK) < 0)
return AVERROR(errno);
@ -94,6 +95,15 @@ static int file_check(URLContext *h, int mask)
if (mask&AVIO_FLAG_WRITE)
if (access(h->filename, W_OK) >= 0)
ret |= AVIO_FLAG_WRITE;
#else
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;
#endif
return ret;
}