- spelling

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

diff --git a/coreutils/chown.c b/coreutils/chown.c
index 8d6cffa142a524796240e44ef9517036aacf6541..bb379ac205949898ecbc71acb81dff87e50750fa 100644 (file)
--- a/coreutils/chown.c
+++ b/coreutils/chown.c
@@ -1,122 +1,78 @@
+/* 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;
 }