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| author | Rich Felker <dalias@aerifal.cx> | 2011-10-09 22:51:03 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-10-09 22:51:03 -0400 |
| commit | 8e8ddeff7eee6294e24c0a9a29053164f990f1b3 (patch) | |
| tree | c2b847f2893c85cb7a386037532f8be24643cb89 /src/fcntl/fcntl.c | |
| parent | 2b89e56c94c1ce4369a3c7a17304df17df1fa822 (diff) | |
| download | musl-8e8ddeff7eee6294e24c0a9a29053164f990f1b3.tar.gz musl-8e8ddeff7eee6294e24c0a9a29053164f990f1b3.tar.xz musl-8e8ddeff7eee6294e24c0a9a29053164f990f1b3.zip | |
fix F_GETOWN return value handling
the fcntl syscall can return a negative value when the command is F_GETOWN, and this is not an error code but an actual value. thus we must special-case it and avoid calling __syscall_ret to set errno. this fix is better than the glibc fix (using F_GETOWN_EX) which only works on newer kernels and is more complex.
Diffstat (limited to 'src/fcntl/fcntl.c')
| -rw-r--r-- | src/fcntl/fcntl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/fcntl/fcntl.c b/src/fcntl/fcntl.c index 2c9fb6f3..cc3d6cce 100644 --- a/src/fcntl/fcntl.c +++ b/src/fcntl/fcntl.c @@ -13,6 +13,7 @@ int fcntl(int fd, int cmd, ...) va_end(ap); if (cmd == F_SETFL) arg |= O_LARGEFILE; if (cmd == F_SETLKW) return syscall_cp(SYS_fcntl, fd, cmd, arg); + if (cmd == F_GETOWN) return __syscall(SYS_fcntl, fd, cmd, arg); return syscall(SYS_fcntl, fd, cmd, arg); } |