sort: code shrink

[oweals/busybox.git] / coreutils / chgrp.c

diff --git a/coreutils/chgrp.c b/coreutils/chgrp.c
index 46db4081a918811eb11e022163bc36e67eedb086..7076db62f9bab7d35ebbaad4f408aa36edddd521 100644 (file)
--- a/coreutils/chgrp.c
+++ b/coreutils/chgrp.c
@@ -4,57 +4,50 @@
  *
  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
-/* BB_AUDIT SUSv3 defects - unsupported options -h, -H, -L, and -P. */
-/* BB_AUDIT GNU defects - unsupported options -h, -c, -f, -v, and long options. */
-/* BB_AUDIT Note: gnu chgrp does not support -H, -L, or -P. */
+/* BB_AUDIT SUSv3 defects - none? */
+/* BB_AUDIT GNU defects - unsupported long options. */
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/chgrp.html */
 
-#include <stdlib.h>
-#include <unistd.h>
-#include "busybox.h"
-
-/* Don't use lchown glibc older then 2.1.x */
-#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
-#define lchown chown
-#endif
-
-static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
-{
-       if (lchown(fileName, statbuf->st_uid, *((long *) junk)) == 0) {
-               return (TRUE);
-       }
-       bb_perror_msg("%s", fileName);  /* Avoid multibyte problems. */
-       return (FALSE);
-}
-
+//usage:#define chgrp_trivial_usage
+//usage:       "[-RhLHP"IF_DESKTOP("cvf")"]... GROUP FILE..."
+//usage:#define chgrp_full_usage "\n\n"
+//usage:       "Change the group membership of each FILE to GROUP\n"
+//usage:     "\n       -R      Recurse"
+//usage:     "\n       -h      Affect symlinks instead of symlink targets"
+//usage:     "\n       -L      Traverse all symlinks to directories"
+//usage:     "\n       -H      Traverse symlinks on command line only"
+//usage:     "\n       -P      Don't traverse symlinks (default)"
+//usage:       IF_DESKTOP(
+//usage:     "\n       -c      List changed files"
+//usage:     "\n       -v      Verbose"
+//usage:     "\n       -f      Hide errors"
+//usage:       )
+//usage:
+//usage:#define chgrp_example_usage
+//usage:       "$ ls -l /tmp/foo\n"
+//usage:       "-r--r--r--    1 andersen andersen        0 Apr 12 18:25 /tmp/foo\n"
+//usage:       "$ chgrp root /tmp/foo\n"
+//usage:       "$ ls -l /tmp/foo\n"
+//usage:       "-r--r--r--    1 andersen root            0 Apr 12 18:25 /tmp/foo\n"
+
+#include "libbb.h"
+
+/* This is a NOEXEC applet. Be very careful! */
+
+
+int chgrp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int chgrp_main(int argc, char **argv)
 {
-       long gid;
-       int recursiveFlag;
-       int retval = EXIT_SUCCESS;
-
-       recursiveFlag = bb_getopt_ulflags(argc, argv, "R");
-
-       if (argc - optind < 2) {
-               bb_show_usage();
-       }
-
-       argv += optind;
-
-       /* Find the selected group */
-       gid = get_ug_id(*argv, bb_xgetgrnam);
-       ++argv;
-
-       /* Ok, ready to do the deed now */
-       do {
-               if (! recursive_action (*argv, recursiveFlag, FALSE, FALSE,
-                                                               fileAction, fileAction, &gid)) {
-                       retval = EXIT_FAILURE;
+       /* "chgrp [opts] abc file(s)" == "chown [opts] :abc file(s)" */
+       char **p = argv;
+       while (*++p) {
+               if (p[0][0] != '-') {
+                       p[0] = xasprintf(":%s", p[0]);
+                       break;
                }
-       } while (*++argv);
-
-       return retval;
+       }
+       return chown_main(argc, argv);
 }