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

/*
 * Copyright (c) 1983, 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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.
 */

#ifndef lint
static char const copyright[] =
"@(#) Copyright (c) 1983, 1992, 1993\n\
	The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)mkdir.c	8.2 (Berkeley) 1/25/94";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__RCSID("$FreeBSD: src/bin/mkdir/mkdir.c,v 1.26 2002/06/30 05:13:54 obrien Exp $");

#include <sys/types.h>
#include <sys/stat.h>

#include <err.h>
#include <errno.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>

static int	build(char *, mode_t);
static void	usage(void);

int vflag;

int
main(int argc, char *argv[])
{
	int ch, exitval, success, pflag;
	mode_t omode, *set = (mode_t *)NULL;
	char *mode;

	omode = pflag = 0;
	mode = NULL;
	while ((ch = getopt(argc, argv, "m:pv")) != -1)
		switch(ch) {
		case 'm':
			mode = optarg;
			break;
		case 'p':
			pflag = 1;
			break;
		case 'v':
			vflag = 1;
			break;
		case '?':
		default:
			usage();
		}

	argc -= optind;
	argv += optind;
	if (argv[0] == NULL)
		usage();

	if (mode == NULL) {
		omode = S_IRWXU | S_IRWXG | S_IRWXO;
	} else {
		if ((set = setmode(mode)) == NULL)
			errx(1, "invalid file mode: %s", mode);
		omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO);
		free(set);
	}

	for (exitval = 0; *argv != NULL; ++argv) {
		success = 1;
		if (pflag) {
			if (build(*argv, omode))
				success = 0;
		} else if (mkdir(*argv, omode) < 0) {
			if (errno == ENOTDIR || errno == ENOENT)
				warn("%s", dirname(*argv));
			else
				warn("%s", *argv);
			success = 0;
		} else if (vflag)
			(void)printf("%s\n", *argv);
		
		if (!success)
			exitval = 1;
		/*
		 * The mkdir() and umask() calls both honor only the low
		 * nine bits, so if you try to set a mode including the
		 * sticky, setuid, setgid bits you lose them.  Don't do
		 * this unless the user has specifically requested a mode,
		 * as chmod will (obviously) ignore the umask.
		 */
		if (success && mode != NULL && chmod(*argv, omode) == -1) {
			warn("%s", *argv);
			exitval = 1;
		}
	}
	exit(exitval);
}

int
build(char *path, mode_t omode)
{
	struct stat sb;
	mode_t numask, oumask;
	int first, last, retval;
	char *p;

	p = path;
	oumask = 0;
	retval = 0;
	if (p[0] == '/')		/* Skip leading '/'. */
		++p;
	for (first = 1, last = 0; !last ; ++p) {
		if (p[0] == '\0')
			last = 1;
		else if (p[0] != '/')
			continue;
		*p = '\0';
		if (p[1] == '\0')
			last = 1;
		if (first) {
			/*
			 * POSIX 1003.2:
			 * For each dir operand that does not name an existing
			 * directory, effects equivalent to those cased by the
			 * following command shall occcur:
			 *
			 * mkdir -p -m $(umask -S),u+wx $(dirname dir) &&
			 *    mkdir [-m mode] dir
			 *
			 * We change the user's umask and then restore it,
			 * instead of doing chmod's.
			 */
			oumask = umask(0);
			numask = oumask & ~(S_IWUSR | S_IXUSR);
			(void)umask(numask);
			first = 0;
		}
		if (last)
			(void)umask(oumask);
		if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
			if (errno == EEXIST || errno == EISDIR) {
				if (stat(path, &sb) < 0) {
					warn("%s", path);
					retval = 1;
					break;
				} else if (!S_ISDIR(sb.st_mode)) {
					if (last)
						errno = EEXIST;
					else
						errno = ENOTDIR;
					warn("%s", path);
					retval = 1;
					break;
				}
			} else {
				warn("%s", path);
				retval = 1;
				break;
			}
		} else if (vflag)
			printf("%s\n", path);
		if (!last)
		    *p = '/';
	}
	if (!first && !last)
		(void)umask(oumask);
	return (retval);
}

void
usage(void)
{

	(void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n");
	exit (EX_USAGE);
}
Commit	Line	Data
44a7a5ab A	1	/*
	2	* Copyright (c) 1983, 1992, 1993
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
44a7a5ab	34	#ifndef lint
6c780a1f A	35	static char const copyright[] =
	36	"@(#) Copyright (c) 1983, 1992, 1993\n\
	37	The Regents of the University of California. All rights reserved.\n";
44a7a5ab A	38	#endif /* not lint */
	39
	40	#ifndef lint
	41	#if 0
	42	static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94";
44a7a5ab A	43	#endif
44a7a5ab A	44	#endif /* not lint */
6c780a1f A	45	#include <sys/cdefs.h>
6c780a1f A	46	__RCSID("$FreeBSD: src/bin/mkdir/mkdir.c,v 1.26 2002/06/30 05:13:54 obrien Exp $");
44a7a5ab A	47
	48	#include <sys/types.h>
	49	#include <sys/stat.h>
	50
	51	#include <err.h>
	52	#include <errno.h>
6c780a1f	53	#include <libgen.h>
44a7a5ab A	54	#include <stdio.h>
	55	#include <stdlib.h>
	56	#include <string.h>
6c780a1f	57	#include <sysexits.h>
44a7a5ab A	58	#include <unistd.h>
44a7a5ab A	59
6c780a1f A	60	static int build(char *, mode_t);
	61	static void usage(void);
	62
	63	int vflag;
44a7a5ab A	64
44a7a5ab A	65	int
6c780a1f	66	main(int argc, char *argv[])
44a7a5ab	67	{
6c780a1f A	68	int ch, exitval, success, pflag;
	69	mode_t omode, set = (mode_t )NULL;
	70	char *mode;
44a7a5ab	71
6c780a1f A	72	omode = pflag = 0;
	73	mode = NULL;
	74	while ((ch = getopt(argc, argv, "m:pv")) != -1)
44a7a5ab	75	switch(ch) {
6c780a1f A	76	case 'm':
	77	mode = optarg;
	78	break;
44a7a5ab A	79	case 'p':
	80	pflag = 1;
	81	break;
6c780a1f A	82	case 'v':
6c780a1f A	83	vflag = 1;
44a7a5ab A	84	break;
	85	case '?':
	86	default:
	87	usage();
	88	}
6c780a1f	89
44a7a5ab A	90	argc -= optind;
44a7a5ab A	91	argv += optind;
6c780a1f	92	if (argv[0] == NULL)
44a7a5ab	93	usage();
44a7a5ab	94
6c780a1f A	95	if (mode == NULL) {
	96	omode = S_IRWXU \| S_IRWXG \| S_IRWXO;
	97	} else {
	98	if ((set = setmode(mode)) == NULL)
	99	errx(1, "invalid file mode: %s", mode);
	100	omode = getmode(set, S_IRWXU \| S_IRWXG \| S_IRWXO);
	101	free(set);
	102	}
44a7a5ab	103
6c780a1f A	104	for (exitval = 0; *argv != NULL; ++argv) {
6c780a1f A	105	success = 1;
44a7a5ab	106	if (pflag) {
6c780a1f A	107	if (build(*argv, omode))
	108	success = 0;
	109	} else if (mkdir(*argv, omode) < 0) {
	110	if (errno == ENOTDIR \|\| errno == ENOENT)
	111	warn("%s", dirname(*argv));
	112	else
44a7a5ab	113	warn("%s", *argv);
6c780a1f A	114	success = 0;
	115	} else if (vflag)
	116	(void)printf("%s\n", *argv);
	117
	118	if (!success)
	119	exitval = 1;
	120	/*
	121	* The mkdir() and umask() calls both honor only the low
	122	* nine bits, so if you try to set a mode including the
	123	* sticky, setuid, setgid bits you lose them. Don't do
	124	* this unless the user has specifically requested a mode,
	125	* as chmod will (obviously) ignore the umask.
	126	*/
	127	if (success && mode != NULL && chmod(*argv, omode) == -1) {
	128	warn("%s", *argv);
	129	exitval = 1;
44a7a5ab A	130	}
	131	}
	132	exit(exitval);
44a7a5ab A	133	}
44a7a5ab A	134
44a7a5ab	135	int
6c780a1f	136	build(char *path, mode_t omode)
44a7a5ab A	137	{
44a7a5ab A	138	struct stat sb;
6c780a1f A	139	mode_t numask, oumask;
	140	int first, last, retval;
	141	char *p;
	142
	143	p = path;
	144	oumask = 0;
	145	retval = 0;
	146	if (p[0] == '/') /* Skip leading '/'. */
	147	++p;
	148	for (first = 1, last = 0; !last ; ++p) {
	149	if (p[0] == '\0')
	150	last = 1;
	151	else if (p[0] != '/')
	152	continue;
	153	*p = '\0';
	154	if (p[1] == '\0')
	155	last = 1;
	156	if (first) {
	157	/*
	158	* POSIX 1003.2:
	159	* For each dir operand that does not name an existing
	160	* directory, effects equivalent to those cased by the
	161	* following command shall occcur:
	162	*
	163	* mkdir -p -m $(umask -S),u+wx $(dirname dir) &&
	164	* mkdir [-m mode] dir
	165	*
	166	* We change the user's umask and then restore it,
	167	* instead of doing chmod's.
	168	*/
	169	oumask = umask(0);
	170	numask = oumask & ~(S_IWUSR \| S_IXUSR);
	171	(void)umask(numask);
	172	first = 0;
44a7a5ab	173	}
6c780a1f A	174	if (last)
	175	(void)umask(oumask);
	176	if (mkdir(path, last ? omode : S_IRWXU \| S_IRWXG \| S_IRWXO) < 0) {
	177	if (errno == EEXIST \|\| errno == EISDIR) {
	178	if (stat(path, &sb) < 0) {
	179	warn("%s", path);
	180	retval = 1;
	181	break;
	182	} else if (!S_ISDIR(sb.st_mode)) {
	183	if (last)
	184	errno = EEXIST;
	185	else
	186	errno = ENOTDIR;
	187	warn("%s", path);
	188	retval = 1;
	189	break;
	190	}
	191	} else {
	192	warn("%s", path);
	193	retval = 1;
	194	break;
	195	}
	196	} else if (vflag)
	197	printf("%s\n", path);
	198	if (!last)
	199	*p = '/';
44a7a5ab	200	}
6c780a1f A	201	if (!first && !last)
	202	(void)umask(oumask);
	203	return (retval);
44a7a5ab A	204	}
	205
	206	void
6c780a1f	207	usage(void)
44a7a5ab A	208	{
44a7a5ab A	209
6c780a1f A	210	(void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n");
6c780a1f A	211	exit (EX_USAGE);
44a7a5ab	212	}