Make sure we can change the group of inaccessible files.

ChangeLog

@@ -2,6 +2,15 @@
 
 	* Version 6.0-cvs.
 
+	* src/chown-core.c (RC_do_ordinary_chown): New enum value.
+	(restricted_chown): Return it, if the file cannot be accessed due
+	to EPERM, or if no uid or gid are required, or if the file is
+	neither a directory nor a regular file.  Rewrite to avoid gotos.
+	(change_file_owner): Handle RC_do_ordinary_chown case.
+	Rewrite to avoid gotos.
+	* tests/chgrp/basic: Make sure we can change the group of
+	inaccessible files.
+
 	* src/date.c (usage): Explain %g, %G, and %V a bit better.
 
 2006-01-02  Jim Meyering  <jim@meyering.net>

tests/chgrp/basic

@@ -74,8 +74,15 @@ test "$VERBOSE" = yes && set +x
   chgrp -R $g2 symlink
   chown --from=:$g1 -c :$g2 f
 
+  # Make sure we can change the group of inaccessible files.
+  chmod a-r f
+  chown --from=:$g2 -c :$g1 f
+  chmod 0 f
+  chown --from=:$g1 -c :$g2 f
+
   # chown() must not be optimized away even when
   # the file's owner and group already have the desired value.
+  rm -f f g
   touch f g
   chgrp $g1 f g
   chgrp $g2 g
@@ -115,6 +122,8 @@ changed ownership of `f' to :G2
 changed group of `symlink' to G1
 changed ownership of `f' to :G2
 changed ownership of `f' to :G2
+changed ownership of `f' to :G1
+changed ownership of `f' to :G2
 f
 g
 EOF