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| author | Rich Felker <dalias@aerifal.cx> | 2012-10-24 21:16:06 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-10-24 21:16:06 -0400 |
| commit | 892cafff665b44d238e3b664f61ca38dd965cba6 (patch) | |
| tree | c65353fe88b0d78025e113b77ed8728a2b4bc8d4 /src/internal | |
| parent | 708c91f4e9be2cfd6d35e71361956e13f3201b85 (diff) | |
| download | musl-892cafff665b44d238e3b664f61ca38dd965cba6.tar.gz | |
greatly improve freopen behavior
1. don't open /dev/null just as a basis to copy flags; use shared
__fmodeflags function to get the right file flags for the mode.
2. handle the case (probably invalid, but whatever) case where the
original stream's file descriptor was closed; previously, the logic
re-closed it.
3. accept the "e" mode flag for close-on-exec; update dup3 to fallback
to using dup2 so we can simply call __dup3 instead of putting fallback
logic in freopen itself.
Diffstat (limited to 'src/internal')
| -rw-r--r-- | src/internal/stdio_impl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h index 65dcfbda..279e91fd 100644 --- a/src/internal/stdio_impl.h +++ b/src/internal/stdio_impl.h @@ -87,6 +87,7 @@ size_t __fwritex(const unsigned char *, size_t, FILE *); int __putc_unlocked(int, FILE *); FILE *__fdopen(int, const char *); +int __fmodeflags(const char *); #define OFLLOCK() LOCK(libc.ofl_lock) #define OFLUNLOCK() UNLOCK(libc.ofl_lock) |