1 /* $NetBSD: chmod.c,v 1.28 2002/07/07 11:44:02 bjh21 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 1.28 2002/07/07 11:44:02 bjh21 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 <limits.h> 58 #include <locale.h> 59 #include <stdio.h> 60 #include <stdlib.h> 61 #include <string.h> 62 #include <unistd.h> 63 64 int main(int, char *[]); 65 void usage(void); 66 67 int 68 main(int argc, char *argv[]) 69 { 70 FTS *ftsp; 71 FTSENT *p; 72 mode_t *set; 73 int Hflag, Lflag, Rflag, ch, fflag, fts_options, hflag, rval; 74 char *mode; 75 int (*change_mode)(const char *, mode_t); 76 77 setprogname(argv[0]); 78 (void)setlocale(LC_ALL, ""); 79 80 Hflag = Lflag = Rflag = fflag = hflag = 0; 81 while ((ch = getopt(argc, argv, "HLPRXfghorstuwx")) != -1) 82 switch (ch) { 83 case 'H': 84 Hflag = 1; 85 Lflag = 0; 86 break; 87 case 'L': 88 Lflag = 1; 89 Hflag = 0; 90 break; 91 case 'P': 92 Hflag = Lflag = 0; 93 break; 94 case 'R': 95 Rflag = 1; 96 break; 97 case 'f': /* XXX: undocumented. */ 98 fflag = 1; 99 break; 100 case 'h': 101 /* 102 * In System V the -h option causes chmod to 103 * change the mode of the symbolic link. 104 * 4.4BSD's symbolic links didn't have modes, 105 * so it was an undocumented noop. In NetBSD 106 * 1.3, lchmod(2) is introduced and this 107 * option does real work. 108 */ 109 hflag = 1; 110 break; 111 /* 112 * XXX 113 * "-[rwx]" are valid mode commands. If they are the entire 114 * argument, getopt has moved past them, so decrement optind. 115 * Regardless, we're done argument processing. 116 */ 117 case 'g': case 'o': case 'r': case 's': 118 case 't': case 'u': case 'w': case 'X': case 'x': 119 if (argv[optind - 1][0] == '-' && 120 argv[optind - 1][1] == ch && 121 argv[optind - 1][2] == '\0') 122 --optind; 123 goto done; 124 case '?': 125 default: 126 usage(); 127 } 128 done: argv += optind; 129 argc -= optind; 130 131 if (argc < 2) 132 usage(); 133 134 fts_options = FTS_PHYSICAL; 135 if (Rflag) { 136 if (hflag) 137 errx(1, 138 "the -R and -h options may not be specified together."); 139 if (Hflag) 140 fts_options |= FTS_COMFOLLOW; 141 if (Lflag) { 142 fts_options &= ~FTS_PHYSICAL; 143 fts_options |= FTS_LOGICAL; 144 } 145 } else if (!hflag) 146 fts_options |= FTS_COMFOLLOW; 147 if (hflag) 148 change_mode = lchmod; 149 else 150 change_mode = chmod; 151 152 mode = *argv; 153 if ((set = setmode(mode)) == NULL) 154 errx(1, "invalid file mode: %s", mode); 155 156 if ((ftsp = fts_open(++argv, fts_options, 0)) == NULL) 157 err(1, "fts_open"); 158 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 159 switch (p->fts_info) { 160 case FTS_D: 161 if (!Rflag) 162 (void)fts_set(ftsp, p, FTS_SKIP); 163 break; 164 case FTS_DNR: /* Warn, chmod, continue. */ 165 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 166 rval = 1; 167 break; 168 case FTS_DP: /* Already changed at FTS_D. */ 169 continue; 170 case FTS_ERR: /* Warn, continue. */ 171 case FTS_NS: 172 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 173 rval = 1; 174 continue; 175 case FTS_SL: /* Ignore. */ 176 case FTS_SLNONE: 177 /* 178 * The only symlinks that end up here are ones that 179 * don't point to anything and ones that we found 180 * doing a physical walk. 181 */ 182 if (!hflag) 183 continue; 184 /* else */ 185 /* FALLTHROUGH */ 186 default: 187 break; 188 } 189 if ((*change_mode)(p->fts_accpath, 190 getmode(set, p->fts_statp->st_mode)) && !fflag) { 191 warn("%s", p->fts_path); 192 rval = 1; 193 } 194 } 195 if (errno) 196 err(1, "fts_read"); 197 exit(rval); 198 /* NOTREACHED */ 199 } 200 201 void 202 usage(void) 203 { 204 (void)fprintf(stderr, 205 "usage: %s [-R [-H | -L | -P]] [-h] mode file ...\n", 206 getprogname()); 207 exit(1); 208 /* NOTREACHED */ 209 } 210