[apple/file_cmds.git] / mv / mv.c

/*	$NetBSD: mv.c,v 1.19 1998/07/28 11:41:49 mycroft Exp $	*/

/*
 * Copyright (c) 1989, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Ken Smith of The State University of New York at Buffalo.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\n\
	The Regents of the University of California.  All rights reserved.\n");
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)mv.c	8.2 (Berkeley) 4/2/94";
#else
__RCSID("$NetBSD: mv.c,v 1.19 1998/07/28 11:41:49 mycroft Exp $");
#endif
#endif /* not lint */

#include <sys/param.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/stat.h>

#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>

#include "pathnames.h"

int fflg, iflg;
int stdin_ok;

int	copy __P((char *, char *));
int	do_move __P((char *, char *));
int	fastcopy __P((char *, char *, struct stat *));
void	usage __P((void));
int	main __P((int, char *[]));

int
main(argc, argv)
	int argc;
	char *argv[];
{
	int baselen, len, rval;
	char *p, *endp;
	struct stat sb;
	int ch;
	char path[MAXPATHLEN + 1];

	(void)setlocale(LC_ALL, "");

	while ((ch = getopt(argc, argv, "if")) != -1)
		switch (ch) {
		case 'i':
			fflg = 0;
			iflg = 1;
			break;
		case 'f':
			iflg = 0;
			fflg = 1;
			break;
		case '?':
		default:
			usage();
		}
	argc -= optind;
	argv += optind;

	if (argc < 2)
		usage();

	stdin_ok = isatty(STDIN_FILENO);

	/*
	 * If the stat on the target fails or the target isn't a directory,
	 * try the move.  More than 2 arguments is an error in this case.
	 */
	if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
		if (argc > 2)
			usage();
		exit(do_move(argv[0], argv[1]));
	}

	/* It's a directory, move each file into it. */
	(void)strcpy(path, argv[argc - 1]);
	baselen = strlen(path);
	endp = &path[baselen];
	*endp++ = '/';
	++baselen;
	for (rval = 0; --argc; ++argv) {
		p = *argv + strlen(*argv) - 1;
		while (*p == '/' && p != *argv)
			*p-- = '\0';
		if ((p = strrchr(*argv, '/')) == NULL)
			p = *argv;
		else
			++p;

		if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
			warnx("%s: destination pathname too long", *argv);
			rval = 1;
		} else {
			memmove(endp, p, len + 1);
			if (do_move(*argv, path))
				rval = 1;
		}
	}
	exit(rval);
	/* NOTREACHED */
}

int
do_move(from, to)
	char *from, *to;
{
	struct stat sb;
	char modep[15];

	/*
	 * (1)	If the destination path exists, the -f option is not specified
	 *	and either of the following conditions are true:
	 *
	 *	(a) The perimissions of the destination path do not permit
	 *	    writing and the standard input is a terminal.
	 *	(b) The -i option is specified.
	 *
	 *	the mv utility shall write a prompt to standard error and
	 *	read a line from standard input.  If the response is not
	 *	affirmative, mv shall do nothing more with the current
	 *	source file...
	 */
	if (!fflg && !access(to, F_OK)) {
		int ask = 1;
		int ch;

		if (iflg) {
			(void)fprintf(stderr, "overwrite %s? ", to);
		} else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) {
			strmode(sb.st_mode, modep);
			(void)fprintf(stderr, "override %s%s%s/%s for %s? ",
			    modep + 1, modep[9] == ' ' ? "" : " ",
			    user_from_uid(sb.st_uid, 0),
			    group_from_gid(sb.st_gid, 0), to);
		} else
			ask = 0;
		if (ask) {
			if ((ch = getchar()) != EOF && ch != '\n')
				while (getchar() != '\n');
			if (ch != 'y' && ch != 'Y')
				return (0);
		}
	}

	/*
	 * (2)	If rename() succeeds, mv shall do nothing more with the
	 *	current source file.  If it fails for any other reason than
	 *	EXDEV, mv shall write a diagnostic message to the standard
	 *	error and do nothing more with the current source file.
	 *
	 * (3)	If the destination path exists, and it is a file of type
	 *	directory and source_file is not a file of type directory,
	 *	or it is a file not of type directory, and source file is
	 *	a file of type directory, mv shall write a diagnostic
	 *	message to standard error, and do nothing more with the
	 *	current source file...
	 */
	if (!rename(from, to))
		return (0);

	if (errno != EXDEV) {
		warn("rename %s to %s", from, to);
		return (1);
	}

	/*
	 * (4)	If the destination path exists, mv shall attempt to remove it.
	 *	If this fails for any reason, mv shall write a diagnostic
	 *	message to the standard error and do nothing more with the
	 *	current source file...
	 */
	if (!lstat(to, &sb)) {
		if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) {
			warn("can't remove %s", to);
			return (1);
		}
	}

	/*
	 * (5)	The file hierarchy rooted in source_file shall be duplicated
	 *	as a file hierarchy rooted in the destination path...
	 */
	if (lstat(from, &sb)) {
		warn("%s", from);
		return (1);
	}
	return (S_ISREG(sb.st_mode) ?
	    fastcopy(from, to, &sb) : copy(from, to));
}

int
fastcopy(from, to, sbp)
	char *from, *to;
	struct stat *sbp;
{
	struct timeval tval[2];
	static u_int blen;
	static char *bp;
	int nread, from_fd, to_fd;

	if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
		warn("%s", from);
		return (1);
	}
	if ((to_fd =
	    open(to, O_CREAT | O_TRUNC | O_WRONLY, sbp->st_mode)) < 0) {
		warn("%s", to);
		(void)close(from_fd);
		return (1);
	}
	if (!blen && !(bp = malloc(blen = sbp->st_blksize))) {
		warn("%s", "");
		return (1);
	}
	while ((nread = read(from_fd, bp, blen)) > 0)
		if (write(to_fd, bp, nread) != nread) {
			warn("%s", to);
			goto err;
		}
	if (nread < 0) {
		warn("%s", from);
err:		if (unlink(to))
			warn("%s: remove", to);
		(void)close(from_fd);
		(void)close(to_fd);
		return (1);
	}
	(void)close(from_fd);

	TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec);
	TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec);
#ifndef __APPLE__
	if (futimes(to_fd, tval))
#else
	if (utimes(to, tval))
#endif
		warn("%s: set times", to);
	if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
		if (errno != EPERM)
			warn("%s: set owner/group", to);
		sbp->st_mode &= ~(S_ISUID | S_ISGID);
	}
	if (fchmod(to_fd, sbp->st_mode))
		warn("%s: set mode", to);

	if (close(to_fd)) {
		warn("%s", to);
		return (1);
	}

	if (unlink(from)) {
		warn("%s: remove", from);
		return (1);
	}
	return (0);
}

int
copy(from, to)
	char *from, *to;
{
	int pid, status;

	if ((pid = vfork()) == 0) {
		execl(_PATH_CP, "mv", "-PRp", from, to, NULL);
		warn("%s", _PATH_CP);
		_exit(1);
	}
	if (waitpid(pid, &status, 0) == -1) {
		warn("%s: waitpid", _PATH_CP);
		return (1);
	}
	if (!WIFEXITED(status)) {
		warn("%s: did not terminate normally", _PATH_CP);
		return (1);
	}
	if (WEXITSTATUS(status)) {
		warn("%s: terminated with %d (non-zero) status",
		    _PATH_CP, WEXITSTATUS(status));
		return (1);
	}
	if (!(pid = vfork())) {
		execl(_PATH_RM, "mv", "-rf", from, NULL);
		warn("%s", _PATH_RM);
		_exit(1);
	}
	if (waitpid(pid, &status, 0) == -1) {
		warn("%s: waitpid", _PATH_RM);
		return (1);
	}
	if (!WIFEXITED(status)) {
		warn("%s: did not terminate normally", _PATH_RM);
		return (1);
	}
	if (WEXITSTATUS(status)) {
		warn("%s: terminated with %d (non-zero) status",
		    _PATH_RM, WEXITSTATUS(status));
		return (1);
	}
	return (0);
}

void
usage()
{

	(void)fprintf(stderr, "usage: mv [-fi] source target\n");
	(void)fprintf(stderr, "       mv [-fi] source ... directory\n");
	exit(1);
	/* NOTREACHED */
}
Commit	Line	Data
44a7a5ab A	1	/* $NetBSD: mv.c,v 1.19 1998/07/28 11:41:49 mycroft Exp $ */
	2
	3	/*
	4	* Copyright (c) 1989, 1993, 1994
	5	* The Regents of the University of California. All rights reserved.
	6	*
	7	* This code is derived from software contributed to Berkeley by
	8	* Ken Smith of The State University of New York at Buffalo.
	9	*
	10	* Redistribution and use in source and binary forms, with or without
	11	* modification, are permitted provided that the following conditions
	12	* are met:
	13	* 1. Redistributions of source code must retain the above copyright
	14	* notice, this list of conditions and the following disclaimer.
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in the
	17	* documentation and/or other materials provided with the distribution.
	18	* 3. All advertising materials mentioning features or use of this software
	19	* must display the following acknowledgement:
	20	* This product includes software developed by the University of
	21	* California, Berkeley and its contributors.
	22	* 4. Neither the name of the University nor the names of its contributors
	23	* may be used to endorse or promote products derived from this software
	24	* without specific prior written permission.
	25	*
	26	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	27	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	28	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	29	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	30	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	31	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	32	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	33	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	34	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	35	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	36	* SUCH DAMAGE.
	37	*/
	38
	39	#include <sys/cdefs.h>
	40	#ifndef lint
	41	__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\n\
	42	The Regents of the University of California. All rights reserved.\n");
	43	#endif /* not lint */
	44
	45	#ifndef lint
	46	#if 0
	47	static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
	48	#else
	49	__RCSID("$NetBSD: mv.c,v 1.19 1998/07/28 11:41:49 mycroft Exp $");
	50	#endif
	51	#endif /* not lint */
	52
	53	#include <sys/param.h>
	54	#include <sys/time.h>
	55	#include <sys/wait.h>
	56	#include <sys/stat.h>
	57
	58	#include <err.h>
	59	#include <errno.h>
	60	#include <fcntl.h>
	61	#include <locale.h>
	62	#include <stdio.h>
	63	#include <stdlib.h>
	64	#include <string.h>
65	#include <unistd.h>
66	#include <pwd.h>
67	#include <grp.h>
68
69	#include "pathnames.h"
70
71	int fflg, iflg;
72	int stdin_ok;
73
74	int copy __P((char , char ));
75	int do_move __P((char , char ));
76	int fastcopy __P((char , char , struct stat *));
77	void usage __P((void));
78	int main __P((int, char *[]));
79
80	int
81	main(argc, argv)
82	int argc;
83	char *argv[];
84	{
85	int baselen, len, rval;
86	char p, endp;
87	struct stat sb;
88	int ch;
89	char path[MAXPATHLEN + 1];
90
91	(void)setlocale(LC_ALL, "");
92
93	while ((ch = getopt(argc, argv, "if")) != -1)
94	switch (ch) {
95	case 'i':
96	fflg = 0;
97	iflg = 1;
98	break;
99	case 'f':
100	iflg = 0;
101	fflg = 1;
102	break;
103	case '?':
104	default:
105	usage();
106	}
107	argc -= optind;
108	argv += optind;
109
110	if (argc < 2)
111	usage();
112
113	stdin_ok = isatty(STDIN_FILENO);
114
115	/*
116	* If the stat on the target fails or the target isn't a directory,
117	* try the move. More than 2 arguments is an error in this case.
118	*/
119	if (stat(argv[argc - 1], &sb) \|\| !S_ISDIR(sb.st_mode)) {
120	if (argc > 2)
121	usage();
122	exit(do_move(argv[0], argv[1]));
123	}
124
125	/* It's a directory, move each file into it. */
126	(void)strcpy(path, argv[argc - 1]);
127	baselen = strlen(path);
128	endp = &path[baselen];
129	*endp++ = '/';
130	++baselen;
131	for (rval = 0; --argc; ++argv) {
132	p = argv + strlen(argv) - 1;
133	while (p == '/' && p != argv)
134	*p-- = '\0';
135	if ((p = strrchr(*argv, '/')) == NULL)
136	p = *argv;
137	else
138	++p;
139
140	if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
141	warnx("%s: destination pathname too long", *argv);
142	rval = 1;
143	} else {
144	memmove(endp, p, len + 1);
145	if (do_move(*argv, path))
146	rval = 1;
147	}
148	}
149	exit(rval);
150	/* NOTREACHED */
151	}
152
153	int
154	do_move(from, to)
155	char from, to;
156	{
157	struct stat sb;
158	char modep[15];
159
160	/*
161	* (1) If the destination path exists, the -f option is not specified
162	* and either of the following conditions are true:
163	*
164	* (a) The perimissions of the destination path do not permit
165	* writing and the standard input is a terminal.
166	* (b) The -i option is specified.
167	*
168	* the mv utility shall write a prompt to standard error and
169	* read a line from standard input. If the response is not
170	* affirmative, mv shall do nothing more with the current
171	* source file...
172	*/
173	if (!fflg && !access(to, F_OK)) {
174	int ask = 1;
175	int ch;
176
177	if (iflg) {
178	(void)fprintf(stderr, "overwrite %s? ", to);
179	} else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) {
180	strmode(sb.st_mode, modep);
181	(void)fprintf(stderr, "override %s%s%s/%s for %s? ",
182	modep + 1, modep[9] == ' ' ? "" : " ",
183	user_from_uid(sb.st_uid, 0),
184	group_from_gid(sb.st_gid, 0), to);
185	} else
186	ask = 0;
187	if (ask) {
188	if ((ch = getchar()) != EOF && ch != '\n')
189	while (getchar() != '\n');
190	if (ch != 'y' && ch != 'Y')
191	return (0);
192	}
193	}
194
195	/*
196	* (2) If rename() succeeds, mv shall do nothing more with the
197	* current source file. If it fails for any other reason than
198	* EXDEV, mv shall write a diagnostic message to the standard
199	* error and do nothing more with the current source file.
200	*
201	* (3) If the destination path exists, and it is a file of type
202	* directory and source_file is not a file of type directory,
203	* or it is a file not of type directory, and source file is
204	* a file of type directory, mv shall write a diagnostic
205	* message to standard error, and do nothing more with the
206	* current source file...
207	*/
208	if (!rename(from, to))
209	return (0);
210
211	if (errno != EXDEV) {
212	warn("rename %s to %s", from, to);
213	return (1);
214	}
215
216	/*
217	* (4) If the destination path exists, mv shall attempt to remove it.
218	* If this fails for any reason, mv shall write a diagnostic
219	* message to the standard error and do nothing more with the
220	* current source file...
221	*/
222	if (!lstat(to, &sb)) {
223	if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) {
224	warn("can't remove %s", to);
225	return (1);
226	}
227	}
228
229	/*
230	* (5) The file hierarchy rooted in source_file shall be duplicated
231	* as a file hierarchy rooted in the destination path...
232	*/
233	if (lstat(from, &sb)) {
234	warn("%s", from);
235	return (1);
236	}
237	return (S_ISREG(sb.st_mode) ?
238	fastcopy(from, to, &sb) : copy(from, to));
239	}
240
241	int
242	fastcopy(from, to, sbp)
243	char from, to;
244	struct stat *sbp;
245	{
246	struct timeval tval[2];
247	static u_int blen;
248	static char *bp;
249	int nread, from_fd, to_fd;
250
251	if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
252	warn("%s", from);
253	return (1);
254	}
255	if ((to_fd =
256	open(to, O_CREAT \| O_TRUNC \| O_WRONLY, sbp->st_mode)) < 0) {
257	warn("%s", to);
258	(void)close(from_fd);
259	return (1);
260	}
261	if (!blen && !(bp = malloc(blen = sbp->st_blksize))) {
262	warn("%s", "");
263	return (1);
264	}
265	while ((nread = read(from_fd, bp, blen)) > 0)
266	if (write(to_fd, bp, nread) != nread) {
267	warn("%s", to);
268	goto err;
269	}
270	if (nread < 0) {
271	warn("%s", from);
272	err: if (unlink(to))
273	warn("%s: remove", to);
274	(void)close(from_fd);
275	(void)close(to_fd);
276	return (1);
277	}
278	(void)close(from_fd);
279
280	TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec);
281	TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec);
282	#ifndef __APPLE__
283	if (futimes(to_fd, tval))
284	#else
285	if (utimes(to, tval))
286	#endif
287	warn("%s: set times", to);
288	if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
289	if (errno != EPERM)
290	warn("%s: set owner/group", to);
291	sbp->st_mode &= ~(S_ISUID \| S_ISGID);
292	}
293	if (fchmod(to_fd, sbp->st_mode))
294	warn("%s: set mode", to);
295
296	if (close(to_fd)) {
297	warn("%s", to);
298	return (1);
299	}
300
301	if (unlink(from)) {
302	warn("%s: remove", from);
303	return (1);
304	}
305	return (0);
306	}
307
308	int
309	copy(from, to)
310	char from, to;
311	{
312	int pid, status;
313
314	if ((pid = vfork()) == 0) {
315	execl(_PATH_CP, "mv", "-PRp", from, to, NULL);
316	warn("%s", _PATH_CP);
317	_exit(1);
318	}
319	if (waitpid(pid, &status, 0) == -1) {
320	warn("%s: waitpid", _PATH_CP);
321	return (1);
322	}
323	if (!WIFEXITED(status)) {
324	warn("%s: did not terminate normally", _PATH_CP);
325	return (1);
326	}
327	if (WEXITSTATUS(status)) {
328	warn("%s: terminated with %d (non-zero) status",
329	_PATH_CP, WEXITSTATUS(status));
330	return (1);
331	}
332	if (!(pid = vfork())) {
333	execl(_PATH_RM, "mv", "-rf", from, NULL);
334	warn("%s", _PATH_RM);
335	_exit(1);
336	}
337	if (waitpid(pid, &status, 0) == -1) {
338	warn("%s: waitpid", _PATH_RM);
339	return (1);
340	}
341	if (!WIFEXITED(status)) {
342	warn("%s: did not terminate normally", _PATH_RM);
343	return (1);
344	}
345	if (WEXITSTATUS(status)) {
346	warn("%s: terminated with %d (non-zero) status",
347	_PATH_RM, WEXITSTATUS(status));
348	return (1);
349	}
350	return (0);
351	}
352
353	void
354	usage()
355	{
356
357	(void)fprintf(stderr, "usage: mv [-fi] source target\n");
358	(void)fprintf(stderr, " mv [-fi] source ... directory\n");
359	exit(1);
360	/* NOTREACHED */
361	}