- add libbb function str_tolower to convert a string to lowercase.
[oweals/busybox.git] / coreutils / mv.c
index ae0ee92e49d345773f40300fb44372bb30f03cae..c08d2327c6c5af106cc9b82752ccd3a2e1980788 100644 (file)
@@ -3,21 +3,9 @@
  * Mini mv implementation for busybox
  *
  * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ * SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
  *
- * 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.
  */
 
 /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
 #include <dirent.h>
 #include <errno.h>
 #include <stdlib.h>
+#include <getopt.h> /* struct option */
 #include "busybox.h"
 #include "libcoreutils/coreutils.h"
 
-static const char *fmt = "cannot overwrite %sdirectory with %sdirectory";
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+static const struct option mv_long_options[] = {
+       { "interactive", 0, NULL, 'i' },
+       { "force", 0, NULL, 'f' },
+       { 0, 0, 0, 0 }
+};
+#endif
+
+#define OPT_FILEUTILS_FORCE       1
+#define OPT_FILEUTILS_INTERACTIVE 2
+
+static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory";
 
-extern int mv_main(int argc, char **argv)
+int mv_main(int argc, char **argv);
+int mv_main(int argc, char **argv)
 {
-       struct stat source_stat;
        struct stat dest_stat;
        const char *last;
        const char *dest;
+       unsigned long flags;
        int dest_exists;
-       int source_exists;
-       int opt;
-       int flags = 0;
        int status = 0;
+       int copy_flag = 0;
 
-       while ((opt = getopt(argc, argv, "fi")) > 0) {
-               flags &= ~(FILEUTILS_INTERACTIVE | FILEUTILS_FORCE);
-               if (opt == 'i') {
-                       flags |= FILEUTILS_INTERACTIVE;
-               } else if (opt == 'f') {
-                       flags |= FILEUTILS_FORCE;
-               } else {
-                       bb_show_usage();
-               }
-       }
-
-       if (optind + 2 > argc)
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+       applet_long_options = mv_long_options;
+#endif
+       opt_complementary = "f-i:i-f";
+       flags = getopt32(argc, argv, "fi");
+       if (optind + 2 > argc) {
                bb_show_usage();
+       }
 
        last = argv[argc - 1];
        argv += optind;
 
        if (optind + 2 == argc) {
-               if ((dest_exists = cp_mv_stat(last, &dest_stat)) < 0) {
+               dest_exists = cp_mv_stat(last, &dest_stat);
+               if (dest_exists < 0) {
                        return 1;
                }
 
@@ -75,67 +70,68 @@ extern int mv_main(int argc, char **argv)
                        goto DO_MOVE;
                }
        }
-       
-       do {
-               dest = concat_path_file(last,
-                                                               bb_get_last_path_component(*argv));
 
-               if ((dest_exists = cp_mv_stat(dest, &dest_stat)) < 0) {
+       do {
+               dest = concat_path_file(last, bb_get_last_path_component(*argv));
+               dest_exists = cp_mv_stat(dest, &dest_stat);
+               if (dest_exists < 0) {
                        goto RET_1;
                }
 
-       DO_MOVE:
-               
-               if (dest_exists && !(flags & FILEUTILS_FORCE) &&
+DO_MOVE:
+
+               if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
                        ((access(dest, W_OK) < 0 && isatty(0)) ||
-                        (flags & FILEUTILS_INTERACTIVE))) {
-                                if (fprintf(stderr, "mv: overwrite `%s'? ", dest) < 0) {
-                                        goto RET_1;    /* Ouch! fprintf failed! */
-                                }
-                                if (!bb_ask_confirmation())
-                                        goto RET_0;
-                }
-               
+                       (flags & OPT_FILEUTILS_INTERACTIVE))) {
+                       if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
+                               goto RET_1;     /* Ouch! fprintf failed! */
+                       }
+                       if (!bb_ask_confirmation()) {
+                               goto RET_0;
+                       }
+               }
                if (rename(*argv, dest) < 0) {
-                       if (errno != EXDEV) {
-                               bb_perror_msg("unable to rename `%s'", *argv);
-                       } else if ((source_exists = cp_mv_stat(*argv, &source_stat)) >= 0) {
+                       struct stat source_stat;
+                       int source_exists;
+
+                       if (errno != EXDEV ||
+                               (source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
+                               bb_perror_msg("cannot rename '%s'", *argv);
+                       } else {
                                if (dest_exists) {
-                                       if (dest_exists & 2) {
-                                               if (!(source_exists & 2)) {
+                                       if (dest_exists == 3) {
+                                               if (source_exists != 3) {
                                                        bb_error_msg(fmt, "", "non-");
                                                        goto RET_1;
                                                }
                                        } else {
-                                               if (source_exists & 2) {
+                                               if (source_exists == 3) {
                                                        bb_error_msg(fmt, "non-", "");
                                                        goto RET_1;
                                                }
                                        }
                                        if (unlink(dest) < 0) {
-                                               bb_perror_msg("cannot remove `%s'", dest);
+                                               bb_perror_msg("cannot remove '%s'", dest);
                                                goto RET_1;
                                        }
                                }
-                               
-                               if ((copy_file(*argv, dest,
-                                                          FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS) >= 0)
-                                       && (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)
-                                       ) {
+                               copy_flag = FILEUTILS_RECUR | FILEUTILS_PRESERVE_STATUS;
+#if ENABLE_SELINUX
+                               copy_flag |= FILEUTILS_PRESERVE_SECURITY_CONTEXT;
+#endif
+                               if ((copy_file(*argv, dest, copy_flag) >= 0) &&
+                                       (remove_file(*argv, FILEUTILS_RECUR | FILEUTILS_FORCE) >= 0)) {
                                        goto RET_0;
                                }
-                               
                        }
-               RET_1:
+RET_1:
                        status = 1;
                }
-
-       RET_0:
+RET_0:
                if (dest != last) {
                        free((void *) dest);
                }
-               
        } while (*++argv != last);
-       
-       exit(status);
+
+       return status;
 }