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chmod.c revision 1.1.1.1 
      1 /*
      2  * Copyright (c) 1989 The Regents of the University of California.
      3  * 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 
     34 #ifndef lint
     35 char copyright[] =
     36 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 static char sccsid[] = "@(#)chmod.c	5.19 (Berkeley) 3/12/91";
     42 #endif /* not lint */
     43 
     44 #include <sys/types.h>
     45 #include <sys/stat.h>
     46 #include <fts.h>
     47 #include <stdio.h>
     48 #include <string.h>
     49 
     50 extern int errno;
     51 int retval;
     52 
     53 main(argc, argv)
     54 	int argc;
     55 	char **argv;
     56 {
     57 	extern int optind;
     58 	register FTS *fts;
     59 	register FTSENT *p;
     60 	register int oct, omode;
     61 	register char *mode;
     62 	mode_t *set, *setmode();
     63 	struct stat sb;
     64 	int ch, fflag, rflag;
     65 
     66 	fflag = rflag = 0;
     67 	while ((ch = getopt(argc, argv, "Rfrwx")) != EOF)
     68 		switch((char)ch) {
     69 		case 'R':
     70 			rflag = 1;
     71 			break;
     72 		case 'f':		/* no longer documented */
     73 			fflag = 1;
     74 			break;
     75 		case 'r':		/* "-[rwx]" are valid file modes */
     76 		case 'w':
     77 		case 'x':
     78 			--optind;
     79 			goto done;
     80 		case '?':
     81 		default:
     82 			usage();
     83 		}
     84 done:	argv += optind;
     85 	argc -= optind;
     86 
     87 	if (argc < 2)
     88 		usage();
     89 
     90 	mode = *argv;
     91 	if (*mode >= '0' && *mode <= '7') {
     92 		omode = (int)strtol(mode, (char **)NULL, 8);
     93 		oct = 1;
     94 	} else {
     95 		if (!(set = setmode(mode))) {
     96 			(void)fprintf(stderr, "chmod: invalid file mode.\n");
     97 			exit(1);
     98 		}
     99 		oct = 0;
    100 	}
    101 
    102 	retval = 0;
    103 	if (rflag) {
    104 		if (!(fts = fts_open(++argv,
    105 		    oct ? FTS_NOSTAT|FTS_PHYSICAL : FTS_PHYSICAL, 0))) {
    106 			(void)fprintf(stderr, "chmod: %s.\n", strerror(errno));
    107 			exit(1);
    108 		}
    109 		while (p = fts_read(fts))
    110 			switch(p->fts_info) {
    111 			case FTS_D:
    112 				break;
    113 			case FTS_DNR:
    114 			case FTS_ERR:
    115 			case FTS_NS:
    116 				(void)fprintf(stderr, "chmod: %s: %s.\n",
    117 				    p->fts_path, strerror(errno));
    118 				exit(1);
    119 			default:
    120 				if (chmod(p->fts_accpath, oct ? omode :
    121 				    getmode(set, p->fts_statb.st_mode)) &&
    122 				    !fflag)
    123 					error(p->fts_path);
    124 				break;
    125 			}
    126 		exit(retval);
    127 	}
    128 	if (oct) {
    129 		while (*++argv)
    130 			if (chmod(*argv, omode) && !fflag)
    131 				error(*argv);
    132 	} else
    133 		while (*++argv)
    134 			if ((lstat(*argv, &sb) ||
    135 			    chmod(*argv, getmode(set, sb.st_mode))) && !fflag)
    136 				error(*argv);
    137 	exit(retval);
    138 }
    139 
    140 error(name)
    141 	char *name;
    142 {
    143 	(void)fprintf(stderr, "chmod: %s: %s.\n", name, strerror(errno));
    144 	retval = 1;
    145 }
    146 
    147 usage()
    148 {
    149 	(void)fprintf(stderr, "chmod: chmod [-R] mode file ...\n");
    150 	exit(1);
    151 }
    152