+/* vi: set sw=4 ts=4: */
/*
* Mini mv implementation for busybox
*
+ * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ * SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
- * Copyright (C) 1999 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 source tree.
*/
-#include "internal.h"
-#include <stdio.h>
-#include <time.h>
-#include <utime.h>
-#include <dirent.h>
+/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
+ *
+ * Size reduction and improved error checking.
+ */
-static const char mv_usage[] = "mv SOURCE DEST\n"
-" or: mv SOURCE... DIRECTORY\n\n"
-"Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.\n";
+#include "libbb.h"
+#include "libcoreutils/coreutils.h"
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+static const char mv_longopts[] ALIGN1 =
+ "interactive\0" No_argument "i"
+ "force\0" No_argument "f"
+ ;
+#endif
-static const char *srcName;
-static const char *destName;
-static int destDirFlag = FALSE;
-static int srcDirFlag = FALSE;
+#define OPT_FILEUTILS_FORCE 1
+#define OPT_FILEUTILS_INTERACTIVE 2
-static int fileAction(const char *fileName, struct stat* statbuf)
+int mv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int mv_main(int argc, char **argv)
{
- char newdestName[NAME_MAX];
- char* newsrcName = NULL;
+ struct stat dest_stat;
+ const char *last;
+ const char *dest;
+ unsigned flags;
+ int dest_exists;
+ int status = 0;
+ int copy_flag = 0;
- strcpy(newdestName, destName);
- if ( srcDirFlag == TRUE ) {
- strcat(newdestName, strstr(fileName, srcName) + strlen(srcName));
- }
-
- if (destDirFlag==TRUE && srcDirFlag == FALSE) {
- if (newdestName[strlen(newdestName)-1] != '/' ) {
- strcat(newdestName, "/");
- }
- newsrcName = strrchr(srcName, '/');
- if (newsrcName && *newsrcName != '\0')
- strcat(newdestName, newsrcName);
- else
- strcat(newdestName, srcName);
- }
-
- return (copyFile(fileName, newdestName, TRUE, TRUE));
-}
+#if ENABLE_FEATURE_MV_LONG_OPTIONS
+ applet_long_options = mv_longopts;
+#endif
+ // Need at least two arguments
+ // -f unsets -i, -i unsets -f
+ opt_complementary = "-2:f-i:i-f";
+ flags = getopt32(argv, "fi");
+ argc -= optind;
+ argv += optind;
+ last = argv[argc - 1];
-static int rmfileAction(const char *fileName, struct stat* statbuf)
-{
- if (unlink( fileName) < 0 ) {
- perror( fileName);
- return ( FALSE);
- }
- return ( TRUE);
-}
+ if (argc == 2) {
+ dest_exists = cp_mv_stat(last, &dest_stat);
+ if (dest_exists < 0) {
+ return EXIT_FAILURE;
+ }
-static int rmdirAction(const char *fileName, struct stat* statbuf)
-{
- if (rmdir( fileName) < 0 ) {
- perror( fileName);
- return ( FALSE);
- }
- return ( TRUE);
-}
+ if (!(dest_exists & 2)) { /* last is not a directory */
+ dest = last;
+ goto DO_MOVE;
+ }
+ }
+ do {
+ dest = concat_path_file(last, bb_get_last_path_component_strip(*argv));
+ dest_exists = cp_mv_stat(dest, &dest_stat);
+ if (dest_exists < 0) {
+ goto RET_1;
+ }
-extern int mv_main(int argc, char **argv)
-{
- if (argc < 3) {
- usage (mv_usage);
- }
- argc--;
- argv++;
+ DO_MOVE:
+ if (dest_exists
+ && !(flags & OPT_FILEUTILS_FORCE)
+ && ((access(dest, W_OK) < 0 && isatty(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) {
+ struct stat source_stat;
+ int source_exists;
- destName = argv[argc - 1];
- destDirFlag = isDirectory(destName);
+ if (errno != EXDEV
+ || (source_exists = cp_mv_stat2(*argv, &source_stat, lstat)) < 1
+ ) {
+ bb_perror_msg("can't rename '%s'", *argv);
+ } else {
+ static const char fmt[] ALIGN1 =
+ "can't overwrite %sdirectory with %sdirectory";
- if ((argc > 3) && destDirFlag==FALSE) {
- fprintf(stderr, "%s: not a directory\n", destName);
- exit (FALSE);
- }
+ if (dest_exists) {
+ if (dest_exists == 3) {
+ if (source_exists != 3) {
+ bb_error_msg(fmt, "", "non-");
+ goto RET_1;
+ }
+ } else {
+ if (source_exists == 3) {
+ bb_error_msg(fmt, "non-", "");
+ goto RET_1;
+ }
+ }
+ if (unlink(dest) < 0) {
+ bb_perror_msg("can't remove '%s'", dest);
+ goto RET_1;
+ }
+ }
+ /* FILEUTILS_RECUR also prevents nasties like
+ * "read from device and write contents to dst"
+ * instead of "create same device node" */
+ 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:
+ status = 1;
+ }
+ RET_0:
+ if (dest != last) {
+ free((void *) dest);
+ }
+ } while (*++argv != last);
- while (argc-- > 1) {
- srcName = *(argv++);
- srcDirFlag = isDirectory(srcName);
- if (recursiveAction(srcName, TRUE, TRUE, FALSE,
- fileAction, fileAction) == FALSE) {
- exit( FALSE);
- }
- if (recursiveAction(srcName, TRUE, TRUE, TRUE,
- rmfileAction, rmdirAction) == FALSE) {
- exit( FALSE);
- }
- }
- exit( TRUE);
+ return status;
}