hurd: Factorize at/non-at functions

Non-at functions can be implemented by just calling the corresponding at
function with AT_FDCWD and zero at_flags.

In the linkat case, the at behavior is different (O_NOLINK), so this introduces
__linkat_common to pass O_NOLINK as appropriate.

lstat functions can also be implemented with fstatat by adding
__fstatat64_common which takes a flags parameter in addition to the at_flags
parameter,

In the end this factorizes chmod, chown, link, lstat64, mkdir, readlink,
rename, stat64, symlink, unlink, utimes.

This also makes __lstat, __lxstat64, __stat and __xstat64 directly use
__fstatat64_common instead of __lstat64 or __stat64.

1 files changed, 1 insertions, 9 deletions

diff --git a/sysdeps/mach/hurd/chown.c b/sysdeps/mach/hurd/chown.c
index 0c5565bea3..f2915211c5 100644
--- a/sysdeps/mach/hurd/chown.c
+++ b/sysdeps/mach/hurd/chown.c
@@ -24,15 +24,7 @@
 int
 __chown (const char *file, uid_t owner, gid_t group)
 {
-  error_t err;
-  file_t port = __file_name_lookup (file, 0, 0);
-  if (port == MACH_PORT_NULL)
-    return -1;
-  err = __file_chown (port, owner, group);
-  __mach_port_deallocate (__mach_task_self (), port);
-  if (err)
-    return __hurd_fail (err);
-  return 0;
+  return __fchownat (AT_FDCWD, file, owner, group, 0);
 }
 libc_hidden_def (__chown)
 weak_alias (__chown, chown)