path: root/src/fcntl/fcntl.c
diff options
authorRich Felker <>2011-10-09 22:51:03 -0400
committerRich Felker <>2011-10-09 22:51:03 -0400
commit8e8ddeff7eee6294e24c0a9a29053164f990f1b3 (patch)
treec2b847f2893c85cb7a386037532f8be24643cb89 /src/fcntl/fcntl.c
parent2b89e56c94c1ce4369a3c7a17304df17df1fa822 (diff)
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')
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, ...)
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);