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

/*
 * Copyright (c) 1989, 1993, 1994
 *	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) 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[] = "@(#)chmod.c	8.8 (Berkeley) 4/1/94";
#endif
#endif /* not lint */
#include <sys/cdefs.h>
__RCSID("$FreeBSD: src/bin/chmod/chmod.c,v 1.27 2002/08/04 05:29:13 obrien Exp $");

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

#include <err.h>
#include <errno.h>
#include <fts.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#ifdef __APPLE__
#include "chmod_acl.h"

#endif /*__APPLE__*/

int fflag = 0;

int main(int, char *[]);
void usage(void);

int
main(int argc, char *argv[])
{
	FTS *ftsp = NULL;
	FTSENT *p = NULL;
	mode_t *set = NULL;
	long val = 0;
	int oct = 0;
	int Hflag, Lflag, Rflag, ch, fts_options, hflag, rval;
	int vflag;
	char *ep, *mode;
	mode_t newmode, omode;
#ifdef __APPLE__
	unsigned int acloptflags = 0;
	int aclpos = -1, inheritance_level = 0;
	int index = 0, acloptlen = 0, ace_arg_not_required = 0;
	acl_t acl_input = NULL;
#endif /* __APPLE__*/
	int (*change_mode)(const char *, mode_t);

	set = NULL;
	omode = 0;
	Hflag = Lflag = Rflag = fflag = hflag = vflag = 0;
#ifndef __APPLE__
	while ((ch = getopt(argc, argv, "HLPRXfghorstuvwx")) != -1)
#else
	while ((ch = getopt(argc, argv, "ACEHILPRVXafginorstuvwx")) != -1)
#endif
		switch (ch) {
		case 'H':
			Hflag = 1;
			Lflag = 0;
			break;
		case 'L':
			Lflag = 1;
			Hflag = 0;
			break;
		case 'P':
			Hflag = Lflag = 0;
			break;
		case 'R':
			Rflag = 1;
			break;
		case 'f':
			fflag = 1;
			break;
#ifndef __APPLE__
		case 'h':
			/*
			 * In System V (and probably POSIX.2) the -h option
			 * causes chmod to change the mode of the symbolic
			 * link.  4.4BSD's symbolic links didn't have modes,
			 * so it was an undocumented noop.  In FreeBSD 3.0,
			 * lchmod(2) is introduced and this option does real
			 * work.
			 */
			hflag = 1;
			break;
#else
		case 'a':
			if (argv[optind - 1][0] == '-' &&
			    argv[optind - 1][1] == ch)
				--optind;
			goto done;
		case 'E':
			acloptflags |= ACL_FLAG | ACL_FROM_STDIN;
			goto done;
		case 'C':
			acloptflags |= ACL_FLAG | ACL_CHECK_CANONICITY;
			ace_arg_not_required = 1;
			goto done;
		case 'i':
			acloptflags |= ACL_FLAG | ACL_REMOVE_INHERIT_FLAG;
			ace_arg_not_required = 1;
			goto done;
		case 'I':
			acloptflags |= ACL_FLAG | ACL_REMOVE_INHERITED_ENTRIES;
			ace_arg_not_required = 1;
			goto done;
		case 'n':
			acloptflags |= ACL_FLAG | ACL_NO_TRANSLATE;
			break;
		case 'V':
			acloptflags |= ACL_FLAG | ACL_INVOKE_EDITOR;
			ace_arg_not_required = 1;
			goto done;
#endif /* __APPLE__ */
		/*
		 * XXX
		 * "-[rwx]" are valid mode commands.  If they are the entire
		 * argument, getopt has moved past them, so decrement optind.
		 * Regardless, we're done argument processing.
		 */
		case 'g': case 'o': case 'r': case 's':
		case 't': case 'u': case 'w': case 'X': case 'x':
			if (argv[optind - 1][0] == '-' &&
			    argv[optind - 1][1] == ch &&
			    argv[optind - 1][2] == '\0')
				--optind;
			goto done;
		case 'v':
			vflag++;
			break;
		case '?':
		default:
			usage();
		}
done:	argv += optind;
	argc -= optind;

#ifdef __APPLE__
	if (argc < ((acloptflags & ACL_FLAG) ? 1 : 2))
		usage();
#else
	if (argc < 2)
		usage();
#endif

#ifdef __APPLE__
	if (!(acloptflags & ACL_FLAG) && ((acloptlen = strlen(argv[0])) > 1) && (argv[0][1] == 'a')) {
		acloptflags |= ACL_FLAG;
		switch (argv[0][0]) {
		case '+':
			acloptflags |= ACL_SET_FLAG;
			break;
		case '-':
			acloptflags |= ACL_DELETE_FLAG;
			break;
		case '=':
			acloptflags |= ACL_REWRITE_FLAG;
			break;
		default:
			acloptflags &= ~ACL_FLAG;
			goto apnoacl;
		}
		
		if (argc < 3)
			usage();

		if (acloptlen > 2) {
			for (index = 2; index < acloptlen; index++) {
				switch (argv[0][index]) {
				case '#':
					acloptflags |= ACL_ORDER_FLAG;

					if (argc < ((acloptflags & ACL_DELETE_FLAG)
						    ? 3 : 4))
						usage();
					argv++;
					argc--;
					errno = 0;
					aclpos = strtol(argv[0], &ep, 0);

					if (aclpos > ACL_MAX_ENTRIES
					    || aclpos < 0)
						errno = ERANGE;
					if (errno || *ep)
						err(1, "Invalid ACL entry number: %s", aclpos);
					if (acloptflags & ACL_DELETE_FLAG)
						ace_arg_not_required = 1;

					goto apdone;
				case 'i':
					acloptflags |= ACL_INHERIT_FLAG;
					/* The +aii.. syntax to specify
					 * inheritance level is rather unwieldy,
					 * find an alternative.
					 */
					inheritance_level++;
					if (inheritance_level > 1)
						warn("Inheritance across more than one generation is not currently supported");
					if (inheritance_level >= MAX_INHERITANCE_LEVEL)
						goto apdone;
					break;
				default:
					errno = EINVAL;
					usage();
				}
			}
		}
apdone:
		argv++;
		argc--;
	}
apnoacl:
#endif /*__APPLE__*/

	if (Rflag) {
		fts_options = FTS_PHYSICAL;
		if (hflag)
			errx(1,
		"the -R and -h options may not be specified together.");
		if (Hflag)
			fts_options |= FTS_COMFOLLOW;
		if (Lflag) {
			fts_options &= ~FTS_PHYSICAL;
			fts_options |= FTS_LOGICAL;
		}
	} else
		fts_options = hflag ? FTS_PHYSICAL : FTS_LOGICAL;

#ifndef __APPLE__
	if (hflag)
		change_mode = lchmod;
	else
		change_mode = chmod;
#else
	change_mode = chmod;
#endif /* __APPLE__ */
#ifdef __APPLE__
	if (acloptflags & ACL_FROM_STDIN) {
		int readval = 0, readtotal = 0;
		
		mode = (char *) malloc(MAX_ACL_TEXT_SIZE);
		
		if (mode == NULL)
			err(1, "Unable to allocate mode string");
		/* Read the ACEs from STDIN */
		do {
			readtotal += readval;
			readval = read(STDIN_FILENO, mode + readtotal, 
				       MAX_ACL_TEXT_SIZE);
		} while ((readval > 0) && (readtotal <= MAX_ACL_TEXT_SIZE));
			
		if (0 == readtotal)
			err(1, "-E specified, but read from STDIN failed");
		else
			mode[readtotal - 1] = '\0';
		--argv;
	}
	else
#endif /* __APPLE */
		mode = *argv;

#ifdef __APPLE__
	if ((acloptflags & ACL_FLAG)) {

		/* Are we deleting by entry number, verifying
		 * canonicity or performing some other operation that
		 * does not require an input entry? If so, there's no
		 * entry to convert.
		 */
		if (ace_arg_not_required) {
			--argv;
		}
		else {
                        /* Parse the text into an ACL*/
			acl_input = parse_acl_entries(mode);
			if (acl_input == NULL) {
				errno = EINVAL;
				err(1, "Invalid ACL specification: %s", mode);
			}
		}
	}
	else {
#endif /* __APPLE__*/
		if (*mode >= '0' && *mode <= '7') {
			errno = 0;
			val = strtol(mode, &ep, 8);
			if (val > USHRT_MAX || val < 0)
				errno = ERANGE;
			if (errno)
				err(1, "Invalid file mode: %s", mode);
			if (*ep)
				errx(1, "Invalid file mode: %s", mode);
			omode = (mode_t)val;
			oct = 1;
		} else {
			if ((set = setmode(mode)) == NULL)
				errx(1, "Invalid file mode: %s", mode);
			oct = 0;
		}
#ifdef __APPLE__
	}
#endif /* __APPLE__*/
	if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
		err(1, "fts_open");
	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
		switch (p->fts_info) {
		case FTS_D:			/* Change it at FTS_DP. */
			if (!Rflag)
				fts_set(ftsp, p, FTS_SKIP);
			continue;
		case FTS_DNR:			/* Warn, chmod, continue. */
			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
			rval = 1;
			break;
		case FTS_ERR:			/* Warn, continue. */
		case FTS_NS:
			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
			rval = 1;
			continue;
		case FTS_SL:			/* Ignore. */
		case FTS_SLNONE:
			/*
			 * The only symlinks that end up here are ones that
			 * don't point to anything and ones that we found
			 * doing a physical walk.
			 */
			if (!hflag)
				continue;
			/* else */
			/* FALLTHROUGH */
		default:
			break;
		}
#ifdef __APPLE__
/* If an ACL manipulation option was specified, manipulate */
		if (acloptflags & ACL_FLAG)	{
			if (0 != modify_file_acl(acloptflags, p->fts_accpath, acl_input, aclpos, inheritance_level))
				rval = 1;
		}
		else {
#endif /* __APPLE__ */
			newmode = oct ? omode : getmode(set, p->fts_statp->st_mode);
			if ((newmode & ALLPERMS) == (p->fts_statp->st_mode & ALLPERMS))
				continue;
			if ((*change_mode)(p->fts_accpath, newmode) && !fflag) {
				warn("%s", p->fts_path);
				rval = 1;
			} else {
				if (vflag) {
					(void)printf("%s", p->fts_accpath);

					if (vflag > 1) {
						char m1[12], m2[12];
						
						strmode(p->fts_statp->st_mode, m1);
						strmode((p->fts_statp->st_mode &
							 S_IFMT) | newmode, m2);
						
						(void)printf(": 0%o [%s] -> 0%o [%s]",
							     p->fts_statp->st_mode, m1,
					    (p->fts_statp->st_mode & S_IFMT) |
							     newmode, m2);
					}
					(void)printf("\n");
				}
				
			}
#ifdef __APPLE__
		}
#endif /* __APPLE__*/
	}
	if (errno)
		err(1, "fts_read");
#ifdef __APPLE__
	if (acl_input)
		acl_free(acl_input);
	if (mode && (acloptflags & ACL_FROM_STDIN))
		free(mode);
	
#endif /* __APPLE__ */
	if (set)
		free(set);
	exit(rval);
}

void
usage(void)
{
#ifdef __APPLE__
	(void)fprintf(stderr,
	    "usage: chmod [-fv] [-R [-H | -L | -P]] [-a | +a | =a  [i][# [ n]]] mode|entry file ...\n");
#else
	(void)fprintf(stderr,
	    "usage: chmod [-fhv] [-R [-H | -L | -P]] mode file ...\n");
#endif /* __APPLE__ */
	exit(1);
}
Commit	Line	Data
44a7a5ab A	1	/*
	2	* Copyright (c) 1989, 1993, 1994
	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	35	static char const copyright[] =
44a7a5ab	36	"@(#) Copyright (c) 1989, 1993, 1994\n\
6c780a1f	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[] = "@(#)chmod.c 8.8 (Berkeley) 4/1/94";
44a7a5ab A	43	#endif
44a7a5ab A	44	#endif /* not lint */
6c780a1f A	45	#include <sys/cdefs.h>
6c780a1f A	46	__RCSID("$FreeBSD: src/bin/chmod/chmod.c,v 1.27 2002/08/04 05:29:13 obrien Exp $");
44a7a5ab A	47
	48	#include <sys/types.h>
	49	#include <sys/stat.h>
	50
	51	#include <err.h>
	52	#include <errno.h>
	53	#include <fts.h>
6c780a1f	54	#include <limits.h>
44a7a5ab A	55	#include <stdio.h>
	56	#include <stdlib.h>
	57	#include <string.h>
	58	#include <unistd.h>
44a7a5ab	59
c59d3020 A	60	#ifdef __APPLE__
	61	#include "chmod_acl.h"
	62
	63	#endif /__APPLE__/
	64
	65	int fflag = 0;
	66
6c780a1f A	67	int main(int, char *[]);
6c780a1f A	68	void usage(void);
44a7a5ab A	69
44a7a5ab A	70	int
6c780a1f	71	main(int argc, char *argv[])
44a7a5ab	72	{
c59d3020 A	73	FTS *ftsp = NULL;
	74	FTSENT *p = NULL;
	75	mode_t *set = NULL;
	76	long val = 0;
	77	int oct = 0;
	78	int Hflag, Lflag, Rflag, ch, fts_options, hflag, rval;
6c780a1f	79	int vflag;
44a7a5ab	80	char ep, mode;
6c780a1f	81	mode_t newmode, omode;
c59d3020 A	82	#ifdef __APPLE__
	83	unsigned int acloptflags = 0;
	84	int aclpos = -1, inheritance_level = 0;
	85	int index = 0, acloptlen = 0, ace_arg_not_required = 0;
	86	acl_t acl_input = NULL;
	87	#endif /* __APPLE__*/
6c780a1f	88	int (change_mode)(const char , mode_t);
44a7a5ab	89
6c780a1f A	90	set = NULL;
	91	omode = 0;
	92	Hflag = Lflag = Rflag = fflag = hflag = vflag = 0;
f383e97b	93	#ifndef __APPLE__
6c780a1f	94	while ((ch = getopt(argc, argv, "HLPRXfghorstuvwx")) != -1)
f383e97b	95	#else
c59d3020	96	while ((ch = getopt(argc, argv, "ACEHILPRVXafginorstuvwx")) != -1)
f383e97b	97	#endif
44a7a5ab A	98	switch (ch) {
	99	case 'H':
	100	Hflag = 1;
	101	Lflag = 0;
	102	break;
	103	case 'L':
	104	Lflag = 1;
	105	Hflag = 0;
	106	break;
	107	case 'P':
	108	Hflag = Lflag = 0;
	109	break;
	110	case 'R':
	111	Rflag = 1;
	112	break;
6c780a1f	113	case 'f':
44a7a5ab A	114	fflag = 1;
	115	break;
	116	#ifndef __APPLE__
	117	case 'h':
	118	/*
	119	* In System V (and probably POSIX.2) the -h option
	120	* causes chmod to change the mode of the symbolic
	121	* link. 4.4BSD's symbolic links didn't have modes,
6c780a1f	122	* so it was an undocumented noop. In FreeBSD 3.0,
44a7a5ab A	123	* lchmod(2) is introduced and this option does real
	124	* work.
	125	*/
	126	hflag = 1;
	127	break;
c59d3020 A	128	#else
	129	case 'a':
	130	if (argv[optind - 1][0] == '-' &&
	131	argv[optind - 1][1] == ch)
	132	--optind;
	133	goto done;
	134	case 'E':
	135	acloptflags \|= ACL_FLAG \| ACL_FROM_STDIN;
	136	goto done;
	137	case 'C':
	138	acloptflags \|= ACL_FLAG \| ACL_CHECK_CANONICITY;
	139	ace_arg_not_required = 1;
	140	goto done;
	141	case 'i':
	142	acloptflags \|= ACL_FLAG \| ACL_REMOVE_INHERIT_FLAG;
	143	ace_arg_not_required = 1;
	144	goto done;
	145	case 'I':
	146	acloptflags \|= ACL_FLAG \| ACL_REMOVE_INHERITED_ENTRIES;
	147	ace_arg_not_required = 1;
	148	goto done;
	149	case 'n':
	150	acloptflags \|= ACL_FLAG \| ACL_NO_TRANSLATE;
	151	break;
	152	case 'V':
	153	acloptflags \|= ACL_FLAG \| ACL_INVOKE_EDITOR;
	154	ace_arg_not_required = 1;
	155	goto done;
6c780a1f	156	#endif /* __APPLE__ */
44a7a5ab A	157	/*
	158	* XXX
	159	* "-[rwx]" are valid mode commands. If they are the entire
	160	* argument, getopt has moved past them, so decrement optind.
	161	* Regardless, we're done argument processing.
	162	*/
	163	case 'g': case 'o': case 'r': case 's':
	164	case 't': case 'u': case 'w': case 'X': case 'x':
	165	if (argv[optind - 1][0] == '-' &&
	166	argv[optind - 1][1] == ch &&
	167	argv[optind - 1][2] == '\0')
	168	--optind;
	169	goto done;
6c780a1f A	170	case 'v':
	171	vflag++;
	172	break;
44a7a5ab A	173	case '?':
	174	default:
	175	usage();
	176	}
	177	done: argv += optind;
	178	argc -= optind;
	179
c59d3020 A	180	#ifdef __APPLE__
	181	if (argc < ((acloptflags & ACL_FLAG) ? 1 : 2))
	182	usage();
	183	#else
44a7a5ab A	184	if (argc < 2)
44a7a5ab A	185	usage();
c59d3020 A	186	#endif
	187
	188	#ifdef __APPLE__
	189	if (!(acloptflags & ACL_FLAG) && ((acloptlen = strlen(argv[0])) > 1) && (argv[0][1] == 'a')) {
	190	acloptflags \|= ACL_FLAG;
	191	switch (argv[0][0]) {
	192	case '+':
	193	acloptflags \|= ACL_SET_FLAG;
	194	break;
	195	case '-':
	196	acloptflags \|= ACL_DELETE_FLAG;
	197	break;
	198	case '=':
	199	acloptflags \|= ACL_REWRITE_FLAG;
	200	break;
	201	default:
	202	acloptflags &= ~ACL_FLAG;
	203	goto apnoacl;
	204	}
	205
	206	if (argc < 3)
	207	usage();
	208
	209	if (acloptlen > 2) {
	210	for (index = 2; index < acloptlen; index++) {
	211	switch (argv[0][index]) {
	212	case '#':
	213	acloptflags \|= ACL_ORDER_FLAG;
	214
	215	if (argc < ((acloptflags & ACL_DELETE_FLAG)
	216	? 3 : 4))
	217	usage();
	218	argv++;
	219	argc--;
	220	errno = 0;
	221	aclpos = strtol(argv[0], &ep, 0);
	222
	223	if (aclpos > ACL_MAX_ENTRIES
	224	\|\| aclpos < 0)
	225	errno = ERANGE;
	226	if (errno \|\| *ep)
	227	err(1, "Invalid ACL entry number: %s", aclpos);
	228	if (acloptflags & ACL_DELETE_FLAG)
	229	ace_arg_not_required = 1;
	230
	231	goto apdone;
	232	case 'i':
	233	acloptflags \|= ACL_INHERIT_FLAG;
	234	/* The +aii.. syntax to specify
	235	* inheritance level is rather unwieldy,
	236	* find an alternative.
	237	*/
	238	inheritance_level++;
	239	if (inheritance_level > 1)
	240	warn("Inheritance across more than one generation is not currently supported");
	241	if (inheritance_level >= MAX_INHERITANCE_LEVEL)
	242	goto apdone;
	243	break;
	244	default:
	245	errno = EINVAL;
	246	usage();
	247	}
	248	}
	249	}
250	apdone:
251	argv++;
252	argc--;
253	}
254	apnoacl:
255	#endif /__APPLE__/
44a7a5ab	256
44a7a5ab	257	if (Rflag) {
6c780a1f	258	fts_options = FTS_PHYSICAL;
44a7a5ab A	259	if (hflag)
	260	errx(1,
	261	"the -R and -h options may not be specified together.");
	262	if (Hflag)
	263	fts_options \|= FTS_COMFOLLOW;
	264	if (Lflag) {
	265	fts_options &= ~FTS_PHYSICAL;
	266	fts_options \|= FTS_LOGICAL;
	267	}
6c780a1f A	268	} else
	269	fts_options = hflag ? FTS_PHYSICAL : FTS_LOGICAL;
	270
44a7a5ab A	271	#ifndef __APPLE__
	272	if (hflag)
	273	change_mode = lchmod;
	274	else
6c780a1f	275	change_mode = chmod;
44a7a5ab	276	#else
6c780a1f A	277	change_mode = chmod;
6c780a1f A	278	#endif /* __APPLE__ */
c59d3020 A	279	#ifdef __APPLE__
	280	if (acloptflags & ACL_FROM_STDIN) {
	281	int readval = 0, readtotal = 0;
	282
	283	mode = (char *) malloc(MAX_ACL_TEXT_SIZE);
	284
	285	if (mode == NULL)
	286	err(1, "Unable to allocate mode string");
	287	/* Read the ACEs from STDIN */
	288	do {
	289	readtotal += readval;
	290	readval = read(STDIN_FILENO, mode + readtotal,
	291	MAX_ACL_TEXT_SIZE);
	292	} while ((readval > 0) && (readtotal <= MAX_ACL_TEXT_SIZE));
	293
	294	if (0 == readtotal)
	295	err(1, "-E specified, but read from STDIN failed");
	296	else
	297	mode[readtotal - 1] = '\0';
	298	--argv;
44a7a5ab	299	}
c59d3020 A	300	else
	301	#endif /* __APPLE */
	302	mode = *argv;
	303
	304	#ifdef __APPLE__
	305	if ((acloptflags & ACL_FLAG)) {
44a7a5ab	306
c59d3020 A	307	/* Are we deleting by entry number, verifying
	308	* canonicity or performing some other operation that
	309	* does not require an input entry? If so, there's no
	310	* entry to convert.
	311	*/
	312	if (ace_arg_not_required) {
	313	--argv;
	314	}
	315	else {
	316	/* Parse the text into an ACL*/
	317	acl_input = parse_acl_entries(mode);
	318	if (acl_input == NULL) {
	319	errno = EINVAL;
	320	err(1, "Invalid ACL specification: %s", mode);
	321	}
	322	}
	323	}
	324	else {
	325	#endif /* __APPLE__*/
	326	if (mode >= '0' && mode <= '7') {
	327	errno = 0;
	328	val = strtol(mode, &ep, 8);
	329	if (val > USHRT_MAX \|\| val < 0)
	330	errno = ERANGE;
	331	if (errno)
	332	err(1, "Invalid file mode: %s", mode);
	333	if (*ep)
	334	errx(1, "Invalid file mode: %s", mode);
	335	omode = (mode_t)val;
	336	oct = 1;
	337	} else {
	338	if ((set = setmode(mode)) == NULL)
	339	errx(1, "Invalid file mode: %s", mode);
	340	oct = 0;
	341	}
	342	#ifdef __APPLE__
	343	}
	344	#endif /* __APPLE__*/
44a7a5ab	345	if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL)
6c780a1f	346	err(1, "fts_open");
44a7a5ab A	347	for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
44a7a5ab A	348	switch (p->fts_info) {
6c780a1f	349	case FTS_D: /* Change it at FTS_DP. */
44a7a5ab	350	if (!Rflag)
6c780a1f A	351	fts_set(ftsp, p, FTS_SKIP);
6c780a1f A	352	continue;
44a7a5ab A	353	case FTS_DNR: /* Warn, chmod, continue. */
	354	warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
	355	rval = 1;
	356	break;
44a7a5ab A	357	case FTS_ERR: /* Warn, continue. */
	358	case FTS_NS:
	359	warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
	360	rval = 1;
	361	continue;
	362	case FTS_SL: /* Ignore. */
	363	case FTS_SLNONE:
	364	/*
	365	* The only symlinks that end up here are ones that
	366	* don't point to anything and ones that we found
	367	* doing a physical walk.
	368	*/
44a7a5ab A	369	if (!hflag)
	370	continue;
	371	/* else */
	372	/* FALLTHROUGH */
44a7a5ab A	373	default:
	374	break;
	375	}
c59d3020 A	376	#ifdef __APPLE__
	377	/* If an ACL manipulation option was specified, manipulate */
	378	if (acloptflags & ACL_FLAG) {
	379	if (0 != modify_file_acl(acloptflags, p->fts_accpath, acl_input, aclpos, inheritance_level))
	380	rval = 1;
	381	}
	382	else {
	383	#endif /* __APPLE__ */
	384	newmode = oct ? omode : getmode(set, p->fts_statp->st_mode);
	385	if ((newmode & ALLPERMS) == (p->fts_statp->st_mode & ALLPERMS))
	386	continue;
	387	if ((*change_mode)(p->fts_accpath, newmode) && !fflag) {
	388	warn("%s", p->fts_path);
	389	rval = 1;
	390	} else {
	391	if (vflag) {
	392	(void)printf("%s", p->fts_accpath);
6c780a1f	393
c59d3020 A	394	if (vflag > 1) {
	395	char m1[12], m2[12];
	396
	397	strmode(p->fts_statp->st_mode, m1);
	398	strmode((p->fts_statp->st_mode &
	399	S_IFMT) \| newmode, m2);
	400
	401	(void)printf(": 0%o [%s] -> 0%o [%s]",
	402	p->fts_statp->st_mode, m1,
6c780a1f	403	(p->fts_statp->st_mode & S_IFMT) \|
c59d3020 A	404	newmode, m2);
	405	}
	406	(void)printf("\n");
6c780a1f	407	}
c59d3020	408
6c780a1f	409	}
c59d3020	410	#ifdef __APPLE__
44a7a5ab	411	}
c59d3020	412	#endif /* __APPLE__*/
44a7a5ab A	413	}
	414	if (errno)
	415	err(1, "fts_read");
c59d3020 A	416	#ifdef __APPLE__
	417	if (acl_input)
	418	acl_free(acl_input);
	419	if (mode && (acloptflags & ACL_FROM_STDIN))
	420	free(mode);
	421
	422	#endif /* __APPLE__ */
	423	if (set)
	424	free(set);
44a7a5ab	425	exit(rval);
44a7a5ab A	426	}
	427
	428	void
6c780a1f	429	usage(void)
44a7a5ab	430	{
6c780a1f	431	#ifdef __APPLE__
44a7a5ab	432	(void)fprintf(stderr,
c59d3020	433	"usage: chmod [-fv] [-R [-H \| -L \| -P]] [-a \| +a \| =a [i][# [ n]]] mode\|entry file ...\n");
44a7a5ab A	434	#else
44a7a5ab A	435	(void)fprintf(stderr,
6c780a1f A	436	"usage: chmod [-fhv] [-R [-H \| -L \| -P]] mode file ...\n");
6c780a1f A	437	#endif /* __APPLE__ */
44a7a5ab	438	exit(1);
44a7a5ab	439	}