chmod: correctly report changed modes

Chmod used to incorrectly report as changed even files for which the
mode did not change. This was caused by extra bits in the st_mode, that
were not present when parsed from passed argument in the form of octal
number.

Patch by Wolf <wolf@wolfsden.cz>.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/coreutils/chmod.c b/coreutils/chmod.c
index e260adab2..8e3e1387e 100644
--- a/coreutils/chmod.c
+++ b/coreutils/chmod.c
@@ -88,7 +88,8 @@ static int FAST_FUNC fileAction(struct recursive_state *state,
 
         if (chmod(fileName, newmode) == 0) {
                 if (OPT_VERBOSE
-                 || (OPT_CHANGED && statbuf->st_mode != newmode)
+                 || (OPT_CHANGED
+                     && (statbuf->st_mode & 07777) != (newmode & 07777))
                 ) {
                         printf("mode of '%s' changed to %04o (%s)\n", fileName,
                                 newmode & 07777, bb_mode_string(newmode)+1);