busybox/coreutils/mv.c

/* vi: set sw=4 ts=4: */
/*
 * Mini mv implementation for busybox
 *
 * Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
 *
 * Size reduction and improved error checking.
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
#include <stdlib.h>
#include <getopt.h> /* struct option */
#include "busybox.h"
#include "libcoreutils/coreutils.h"

#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";

int mv_main(int argc, char **argv)
{
	struct stat dest_stat;
	const char *last;
	const char *dest;
	unsigned long flags;
	int dest_exists;
	int status = 0;

#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) {
		dest_exists = cp_mv_stat(last, &dest_stat);
		if (dest_exists < 0) {
			return 1;
		}

		if (!(dest_exists & 2)) {
			dest = last;
			goto DO_MOVE;
		}
	}

	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 & 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;

			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 == 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("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)) {
					goto RET_0;
				}
			}
RET_1:
			status = 1;
		}
RET_0:
		if (dest != last) {
			free((void *) dest);
		}
	} while (*++argv != last);

	return status;
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Mini mv implementation for busybox
4	*
5	* Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
6	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/
9
10	/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
11	*
12	* Size reduction and improved error checking.
13	*/
14
15	#include <sys/types.h>
16	#include <sys/stat.h>
17	#include <unistd.h>
18	#include <dirent.h>
19	#include <errno.h>
20	#include <stdlib.h>
21	#include <getopt.h> /* struct option */
22	#include "busybox.h"
23	#include "libcoreutils/coreutils.h"
24
25	#if ENABLE_FEATURE_MV_LONG_OPTIONS
26	static const struct option mv_long_options[] = {
27	{ "interactive", 0, NULL, 'i' },
28	{ "force", 0, NULL, 'f' },
29	{ 0, 0, 0, 0 }
30	};
31	#endif
32
33	#define OPT_FILEUTILS_FORCE 1
34	#define OPT_FILEUTILS_INTERACTIVE 2
35
36	static const char fmt[] = "cannot overwrite %sdirectory with %sdirectory";
37
38	int mv_main(int argc, char **argv)
39	{
40	struct stat dest_stat;
41	const char *last;
42	const char *dest;
43	unsigned long flags;
44	int dest_exists;
45	int status = 0;
46
47	#if ENABLE_FEATURE_MV_LONG_OPTIONS
48	applet_long_options = mv_long_options;
49	#endif
50	opt_complementary = "f-i:i-f";
51	flags = getopt32(argc, argv, "fi");
52	if (optind + 2 > argc) {
53	bb_show_usage();
54	}
55
56	last = argv[argc - 1];
57	argv += optind;
58
59	if (optind + 2 == argc) {
60	dest_exists = cp_mv_stat(last, &dest_stat);
61	if (dest_exists < 0) {
62	return 1;
63	}
64
65	if (!(dest_exists & 2)) {
66	dest = last;
67	goto DO_MOVE;
68	}
69	}
70
71	do {
72	dest = concat_path_file(last, bb_get_last_path_component(*argv));
73	dest_exists = cp_mv_stat(dest, &dest_stat);
74	if (dest_exists < 0) {
75	goto RET_1;
76	}
77
78	DO_MOVE:
79
80	if (dest_exists && !(flags & OPT_FILEUTILS_FORCE) &&
81	((access(dest, W_OK) < 0 && isatty(0)) \|\|
82	(flags & OPT_FILEUTILS_INTERACTIVE))) {
83	if (fprintf(stderr, "mv: overwrite '%s'? ", dest) < 0) {
84	goto RET_1; /* Ouch! fprintf failed! */
85	}
86	if (!bb_ask_confirmation()) {
87	goto RET_0;
88	}
89	}
90	if (rename(*argv, dest) < 0) {
91	struct stat source_stat;
92	int source_exists;
93
94	if (errno != EXDEV \|\|
95	(source_exists = cp_mv_stat(*argv, &source_stat)) < 1) {
96	bb_perror_msg("cannot rename '%s'", *argv);
97	} else {
98	if (dest_exists) {
99	if (dest_exists == 3) {
100	if (source_exists != 3) {
101	bb_error_msg(fmt, "", "non-");
102	goto RET_1;
103	}
104	} else {
105	if (source_exists == 3) {
106	bb_error_msg(fmt, "non-", "");
107	goto RET_1;
108	}
109	}
110	if (unlink(dest) < 0) {
111	bb_perror_msg("cannot remove '%s'", dest);
112	goto RET_1;
113	}
114	}
115	if ((copy_file(*argv, dest,
116	FILEUTILS_RECUR \| FILEUTILS_PRESERVE_STATUS) >= 0) &&
117	(remove_file(*argv, FILEUTILS_RECUR \| FILEUTILS_FORCE) >= 0)) {
118	goto RET_0;
119	}
120	}
121	RET_1:
122	status = 1;
123	}
124	RET_0:
125	if (dest != last) {
126	free((void *) dest);
127	}
128	} while (*++argv != last);
129
130	return status;
131	}