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| author | Rich Felker <dalias@aerifal.cx> | 2012-06-20 22:16:47 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-06-20 22:16:47 -0400 |
| commit | 4e8b0938d90793d6e1e200d6b25e6581b72bd4d0 (patch) | |
| tree | cb0255413023716592eebc9f7978d7c1a1b00179 /include/fcntl.h | |
| parent | e5fb6820a42a1f675ba09c15273953e1ace65777 (diff) | |
| download | musl-4e8b0938d90793d6e1e200d6b25e6581b72bd4d0.tar.gz musl-4e8b0938d90793d6e1e200d6b25e6581b72bd4d0.tar.bz2 musl-4e8b0938d90793d6e1e200d6b25e6581b72bd4d0.tar.xz musl-4e8b0938d90793d6e1e200d6b25e6581b72bd4d0.zip | |
proper error handling for fcntl F_GETOWN on modern kernels
on old kernels, there's no way to detect errors; we must assume
negative syscall return values are pgrp ids. but if the F_GETOWN_EX
fcntl works, we can get a reliable answer.
Diffstat (limited to 'include/fcntl.h')
| -rw-r--r-- | include/fcntl.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/fcntl.h b/include/fcntl.h index 36fb24bc..fcb622a2 100644 --- a/include/fcntl.h +++ b/include/fcntl.h @@ -99,6 +99,17 @@ int posix_fallocate(int, off_t, off_t); int lockf(int, int, off_t); #endif +#if defined(_GNU_SOURCE) +#define F_OWNER_TID 0 +#define F_OWNER_PID 1 +#define F_OWNER_PGRP 2 +#define F_OWNER_GID 2 +struct f_owner_ex { + int type; + pid_t pid; +}; +#endif + #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE) #define open64 open #define openat64 openat |