* Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
* SELinux support by Yuichi Nakamura <ynakam@hitachisoft.jp>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Size reduction and improved error checking.
*/
+//config:config MV
+//config: bool "mv (10 kb)"
+//config: default y
+//config: help
+//config: mv is used to move or rename files or directories.
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <getopt.h> /* struct option */
-#include "libbb.h"
-#include "libcoreutils/coreutils.h"
+//applet:IF_MV(APPLET_NOEXEC(mv, mv, BB_DIR_BIN, BB_SUID_DROP, mv))
+/* NOEXEC despite cases when it can be a "runner" (mv LARGE_DIR OTHER_FS) */
-#if ENABLE_FEATURE_MV_LONG_OPTIONS
-static const char mv_longopts[] ALIGN1 =
- "interactive\0" No_argument "i"
- "force\0" No_argument "f"
- ;
-#endif
+//kbuild:lib-$(CONFIG_MV) += mv.o
-#define OPT_FILEUTILS_FORCE 1
-#define OPT_FILEUTILS_INTERACTIVE 2
+//usage:#define mv_trivial_usage
+//usage: "[-fin] SOURCE DEST\n"
+//usage: "or: mv [-fin] SOURCE... DIRECTORY"
+//usage:#define mv_full_usage "\n\n"
+//usage: "Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY\n"
+//usage: "\n -f Don't prompt before overwriting"
+//usage: "\n -i Interactive, prompt before overwrite"
+//usage: "\n -n Don't overwrite an existing file"
+//usage:
+//usage:#define mv_example_usage
+//usage: "$ mv /tmp/foo /bin/bar\n"
-static const char fmt[] ALIGN1 =
- "cannot overwrite %sdirectory with %sdirectory";
+#include "libbb.h"
+#include "libcoreutils/coreutils.h"
-int mv_main(int argc, char **argv);
+int mv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int mv_main(int argc, char **argv)
{
struct stat dest_stat;
const char *last;
const char *dest;
- unsigned long flags;
+ unsigned flags;
int dest_exists;
int status = 0;
int copy_flag = 0;
-#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");
+#define OPT_FORCE (1 << 0)
+#define OPT_INTERACTIVE (1 << 1)
+#define OPT_NOCLOBBER (1 << 2)
+#define OPT_VERBOSE ((1 << 3) * ENABLE_FEATURE_VERBOSE)
+ /* Need at least two arguments.
+ * If more than one of -f, -i, -n is specified , only the final one
+ * takes effect (it unsets previous options).
+ */
+ flags = getopt32long(argv, "^"
+ "finv"
+ "\0"
+ "-2:f-in:i-fn:n-fi",
+ "interactive\0" No_argument "i"
+ "force\0" No_argument "f"
+ "no-clobber\0" No_argument "n"
+ IF_FEATURE_VERBOSE(
+ "verbose\0" No_argument "v"
+ )
+ );
argc -= optind;
argv += optind;
last = argv[argc - 1];
if (argc == 2) {
dest_exists = cp_mv_stat(last, &dest_stat);
if (dest_exists < 0) {
- return 1;
+ return EXIT_FAILURE;
}
- if (!(dest_exists & 2)) {
+ 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(*argv));
+ 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;
}
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()) {
+ if (dest_exists) {
+ if (flags & OPT_NOCLOBBER)
goto RET_0;
+ if (!(flags & OPT_FORCE)
+ && ((access(dest, W_OK) < 0 && isatty(0))
+ || (flags & OPT_INTERACTIVE))
+ ) {
+ if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
+ goto RET_1; /* Ouch! fprintf failed! */
+ }
+ if (!bb_ask_y_confirmation()) {
+ goto RET_0;
+ }
}
}
+
if (rename(*argv, dest) < 0) {
struct stat source_stat;
int source_exists;
if (errno != EXDEV
- || (source_exists = cp_mv_stat(*argv, &source_stat)) < 1
+ || (source_exists = cp_mv_stat2(*argv, &source_stat, lstat)) < 1
) {
- bb_perror_msg("cannot rename '%s'", *argv);
+ bb_perror_msg("can't rename '%s'", *argv);
} else {
+ static const char fmt[] ALIGN1 =
+ "can't overwrite %sdirectory with %sdirectory";
+
if (dest_exists) {
if (dest_exists == 3) {
if (source_exists != 3) {
}
}
if (unlink(dest) < 0) {
- bb_perror_msg("cannot remove '%s'", dest);
+ 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;
status = 1;
}
RET_0:
+ if (flags & OPT_VERBOSE) {
+ printf("'%s' -> '%s'\n", *argv, dest);
+ }
if (dest != last) {
free((void *) dest);
}
projects / oweals / busybox.git / blobdiff