+/* vi: set sw=4 ts=4: */
/*
- * Mini chown/chgrp implementation for busybox
+ * Mini chown implementation for busybox
*
- * Copyright (C) 1998 by Erik Andersen <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
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <stdio.h>
-#include <grp.h>
-#include <pwd.h>
-#include "internal.h"
-
-
-static int uid=-1;
-static int gid=0;
-static int chownApp;
-static char* invocationName=NULL;
-
+/* 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 */
-static const char chgrp_usage[] = "[OPTION]... GROUP FILE...\n"
- "Change the group membership of each FILE to GROUP.\n"
- "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
-static const char chown_usage[] = "[OPTION]... OWNER[.[GROUP] FILE...\n"
- "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n"
- "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include "busybox.h"
+static uid_t uid = -1;
+static gid_t gid = -1;
+static int (*chown_func)(const char *, uid_t, gid_t) = chown;
-static int fileAction(const char *fileName)
+static int fileAction(const char *fileName, struct stat *statbuf,
+ void ATTRIBUTE_UNUSED *junk)
{
- struct stat statBuf;
- if ((stat(fileName, &statBuf) < 0) ||
- (chown(fileName,
- ((chownApp==TRUE)? uid: statBuf.st_uid),
- gid) < 0)) {
- perror(fileName);
- return( FALSE);
- }
- return( TRUE);
+ if (!chown_func(fileName,
+ (uid == (uid_t)-1) ? statbuf->st_uid : uid,
+ (gid == (gid_t)-1) ? statbuf->st_gid : gid)) {
+ return TRUE;
+ }
+ 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)
{
- struct group *grp;
- struct passwd *pwd;
- int recursiveFlag=FALSE;
- char *groupName;
+ int flags;
+ int retval = EXIT_SUCCESS;
+ char *groupName;
+ flags = bb_getopt_ulflags(argc, argv, "Rh");
- chownApp = (strcmp(*argv, "chown")==0)? TRUE : FALSE;
+ if (flags & FLAG_h) chown_func = lchown;
- if (argc < 2) {
- fprintf(stderr, "Usage: %s %s", *argv,
- (chownApp==TRUE)? chown_usage : chgrp_usage);
- exit( FALSE);
- }
- invocationName=*argv;
- argc--;
- argv++;
+ if (argc - optind < 2) {
+ bb_show_usage();
+ }
- /* Parse options */
- while (**argv == '-') {
- while (*++(*argv)) switch (**argv) {
- case 'R':
- recursiveFlag = TRUE;
- break;
- default:
- fprintf(stderr, "Unknown option: %c\n", **argv);
- exit( FALSE);
+ argv += optind;
+
+ /* First, check if there is a group name here */
+ if ((groupName = strchr(*argv, '.')) == NULL) {
+ groupName = strchr(*argv, ':');
}
- argc--;
- argv++;
- }
-
- /* Find the selected group */
- groupName = strchr(*argv, '.');
- if ( chownApp==TRUE && groupName )
- *groupName++ = '\0';
- else
- groupName = *argv;
- grp = getgrnam(groupName);
- if (grp == NULL) {
- fprintf(stderr, "%s: Unknown group name: %s\n", invocationName, groupName);
- exit( FALSE);
- }
- gid = grp->gr_gid;
- /* Find the selected user (if appropriate) */
- if (chownApp==TRUE) {
- pwd = getpwnam(*argv);
- if (pwd == NULL) {
- fprintf(stderr, "%s: Unknown user name: %s\n", invocationName, *argv);
- exit( FALSE);
+ /* Check for the username and groupname */
+ if (groupName) {
+ *groupName++ = '\0';
+ gid = get_ug_id(groupName, bb_xgetgrnam);
}
- uid = pwd->pw_uid;
- }
+ if (--groupName != *argv) uid = get_ug_id(*argv, bb_xgetpwnam);
+ ++argv;
+
+ /* Ok, ready to do the deed now */
+ do {
+ if (! recursive_action (*argv, (flags & FLAG_R), FALSE, FALSE,
+ fileAction, fileAction, NULL)) {
+ retval = EXIT_FAILURE;
+ }
+ } while (*++argv);
- /* Ok, ready to do the deed now */
- if (argc <= 1) {
- fprintf(stderr, "%s: too few arguments", invocationName);
- exit( FALSE);
- }
- while (argc-- > 1) {
- argv++;
- recursiveAction( *argv, recursiveFlag, TRUE, fileAction, fileAction);
- }
- exit(TRUE);
+ return retval;
}