1 /* $NetBSD: chmod.c,v 1.22 2000/01/20 02:50:54 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT( 39 "@(#) Copyright (c) 1989, 1993, 1994\n\ 40 The Regents of the University of California. All rights reserved.\n"); 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)chmod.c 8.8 (Berkeley) 4/1/94"; 46 #else 47 __RCSID("$NetBSD: chmod.c,v 1.22 2000/01/20 02:50:54 mycroft Exp $"); 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/types.h> 52 #include <sys/stat.h> 53 54 #include <err.h> 55 #include <errno.h> 56 #include <fts.h> 57 #include <locale.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <unistd.h> 62 #include <limits.h> 63 64 int main __P((int, char *[])); 65 void usage __P((void)); 66 67 int 68 main(argc, argv) 69 int argc; 70 char *argv[]; 71 { 72 FTS *ftsp; 73 FTSENT *p; 74 mode_t *set; 75 int Hflag, Lflag, Rflag, ch, fflag, fts_options, hflag, rval; 76 char *mode; 77 int (*change_mode) __P((const char *, mode_t)); 78 79 set = NULL; /* XXX gcc -Wuninitialized */ 80 81 (void)setlocale(LC_ALL, ""); 82 83 Hflag = Lflag = Rflag = fflag = hflag = 0; 84 while ((ch = getopt(argc, argv, "HLPRXfghorstuwx")) != -1) 85 switch (ch) { 86 case 'H': 87 Hflag = 1; 88 Lflag = 0; 89 break; 90 case 'L': 91 Lflag = 1; 92 Hflag = 0; 93 break; 94 case 'P': 95 Hflag = Lflag = 0; 96 break; 97 case 'R': 98 Rflag = 1; 99 break; 100 case 'f': /* XXX: undocumented. */ 101 fflag = 1; 102 break; 103 case 'h': 104 /* 105 * In System V (and probably POSIX.2) the -h option 106 * causes chmod to change the mode of the symbolic 107 * link. 4.4BSD's symbolic links didn't have modes, 108 * so it was an undocumented noop. In NetBSD 1.3, 109 * lchmod(2) is introduced and this option does real 110 * work. 111 */ 112 hflag = 1; 113 break; 114 /* 115 * XXX 116 * "-[rwx]" are valid mode commands. If they are the entire 117 * argument, getopt has moved past them, so decrement optind. 118 * Regardless, we're done argument processing. 119 */ 120 case 'g': case 'o': case 'r': case 's': 121 case 't': case 'u': case 'w': case 'X': case 'x': 122 if (argv[optind - 1][0] == '-' && 123 argv[optind - 1][1] == ch && 124 argv[optind - 1][2] == '\0') 125 --optind; 126 goto done; 127 case '?': 128 default: 129 usage(); 130 } 131 done: argv += optind; 132 argc -= optind; 133 134 if (argc < 2) 135 usage(); 136 137 fts_options = FTS_PHYSICAL; 138 if (Rflag) { 139 if (hflag) 140 errx(1, 141 "the -R and -h options may not be specified together."); 142 if (Hflag) 143 fts_options |= FTS_COMFOLLOW; 144 if (Lflag) { 145 fts_options &= ~FTS_PHYSICAL; 146 fts_options |= FTS_LOGICAL; 147 } 148 } 149 if (hflag) 150 change_mode = lchmod; 151 else 152 change_mode = chmod; 153 154 mode = *argv; 155 if ((set = setmode(mode)) == NULL) 156 errx(1, "invalid file mode: %s", mode); 157 158 if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL) 159 err(1, argv[0]); 160 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 161 switch (p->fts_info) { 162 case FTS_D: 163 if (!Rflag) 164 (void)fts_set(ftsp, p, FTS_SKIP); 165 break; 166 case FTS_DNR: /* Warn, chmod, continue. */ 167 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 168 rval = 1; 169 break; 170 case FTS_DP: /* Already changed at FTS_D. */ 171 continue; 172 case FTS_ERR: /* Warn, continue. */ 173 case FTS_NS: 174 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 175 rval = 1; 176 continue; 177 case FTS_SL: /* Ignore. */ 178 case FTS_SLNONE: 179 /* 180 * The only symlinks that end up here are ones that 181 * don't point to anything and ones that we found 182 * doing a physical walk. 183 */ 184 if (!hflag) 185 continue; 186 /* else */ 187 /* FALLTHROUGH */ 188 default: 189 break; 190 } 191 if ((*change_mode)(p->fts_accpath, 192 getmode(set, p->fts_statp->st_mode)) && !fflag) { 193 warn("%s", p->fts_path); 194 rval = 1; 195 } 196 } 197 if (errno) 198 err(1, "fts_read"); 199 exit(rval); 200 /* NOTREACHED */ 201 } 202 203 void 204 usage() 205 { 206 (void)fprintf(stderr, 207 "usage: chmod [-R [-H | -L | -P]] [-h] mode file ...\n"); 208 exit(1); 209 /* NOTREACHED */ 210 } 211