made "test" an ash built-in.

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

diff --git a/coreutils/chown.c b/coreutils/chown.c
index a656072041b9b2bc58dfee138fb6ca69debaad64..bb379ac205949898ecbc71acb81dff87e50750fa 100644 (file)
--- a/coreutils/chown.c
+++ b/coreutils/chown.c
@@ -1,113 +1,78 @@
 /* vi: set sw=4 ts=4: */
 /*
- * Mini chown/chmod/chgrp implementation for busybox
+ * Mini chown implementation for busybox
  *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
- * Copyright (C) 1999,2000,2001 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <stdio.h>
+/* 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 chown does not support -H, -L, or -P. */
+/* http://www.opengroup.org/onlinepubs/007904975/utilities/chown.html */
+
 #include <stdlib.h>
-#include <string.h>
 #include <unistd.h>
+#include <string.h>
 #include "busybox.h"
 
-/* Don't use lchown for libc5 or glibc older then 2.1.x */
-#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
-#define lchown chown
-#endif
-
-static long uid;
-static long gid;
+static uid_t uid = -1;
+static gid_t gid = -1;
 
-static int (*chown_func)() = chown;
+static int (*chown_func)(const char *, uid_t, gid_t) = chown;
 
-static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
+static int fileAction(const char *fileName, struct stat *statbuf,
+               void ATTRIBUTE_UNUSED *junk)
 {
-       if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) {
-               return (TRUE);
+       if (!chown_func(fileName,
+                               (uid == (uid_t)-1) ? statbuf->st_uid : uid,
+                               (gid == (gid_t)-1) ? statbuf->st_gid : gid)) {
+               return TRUE;
        }
-       perror(fileName);
-       return (FALSE);
+       bb_perror_msg("%s", fileName);  /* A filename could have % in it... */
+       return FALSE;
 }
 
+#define FLAG_R 1
+#define FLAG_h 2
+
 int chown_main(int argc, char **argv)
 {
-       int opt;
-       int recursiveFlag = FALSE,
-               noderefFlag = FALSE;
-       char *groupName=NULL;
-       char *p=NULL;
+       int flags;
+       int retval = EXIT_SUCCESS;
+       char *groupName;
 
-       /* do normal option parsing */
-       while ((opt = getopt(argc, argv, "Rh")) > 0) {
-               switch (opt) {
-                       case 'R':
-                               recursiveFlag = TRUE;
-                               break;
-                       case 'h':
-                               noderefFlag = TRUE;
-                               break;
-                       default:
-                               show_usage();
-               }
+       flags = bb_getopt_ulflags(argc, argv, "Rh");
+
+       if (flags & FLAG_h) chown_func = lchown;
+
+       if (argc - optind < 2) {
+               bb_show_usage();
        }
 
-       if (noderefFlag) chown_func = lchown;
+       argv += optind;
 
-       if (argc > optind && argc > 2 && argv[optind]) {
-               /* First, check if there is a group name here */
-               groupName = strchr(argv[optind], '.');
-               if (groupName == NULL)
-                       groupName = strchr(argv[optind], ':');
-               if (groupName) {
-                       *groupName++ = '\0';
-                       gid = strtoul(groupName, &p, 10);
-                       if (groupName == p)
-                               gid = my_getgrnam(groupName);
-               } else {
-                       gid = -1;
-               }
-               /* Now check for the username */
-               uid = strtoul(argv[optind], &p, 10);    /* Is is numeric? */
-               if (argv[optind] == p) {
-                       uid = my_getpwnam(argv[optind]);
-               }
-       } else {
-               error_msg_and_die(too_few_args);
+       /* First, check if there is a group name here */
+       if ((groupName = strchr(*argv, '.')) == NULL) {
+               groupName = strchr(*argv, ':');
        }
 
+       /* Check for the username and groupname */
+       if (groupName) {
+               *groupName++ = '\0';
+               gid = get_ug_id(groupName, bb_xgetgrnam);
+       }
+       if (--groupName != *argv) uid = get_ug_id(*argv, bb_xgetpwnam);
+       ++argv;
+
        /* Ok, ready to do the deed now */
-       while (++optind < argc) {
-               if (recursive_action (argv[optind], recursiveFlag, FALSE, FALSE, 
-                                       fileAction, fileAction, NULL) == FALSE) {
-                       return EXIT_FAILURE;
+       do {
+               if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE,
+                                                               fileAction, fileAction, NULL)) {
+                       retval = EXIT_FAILURE;
                }
-       }
-       return EXIT_SUCCESS;
+       } while (*++argv);
 
+       return retval;
 }
-
-/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/