1 /* $NetBSD: chflags.c,v 1.15 2008/07/21 14:19:21 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\ 35 The Regents of the University of California. All rights reserved."); 36 #endif /* not lint */ 37 38 #ifndef lint 39 #if 0 40 static char sccsid[] = "from: @(#)chflags.c 8.5 (Berkeley) 4/1/94"; 41 #else 42 __RCSID("$NetBSD: chflags.c,v 1.15 2008/07/21 14:19:21 lukem Exp $"); 43 #endif 44 #endif /* not lint */ 45 46 #include <sys/types.h> 47 #include <sys/stat.h> 48 49 #include <err.h> 50 #include <errno.h> 51 #include <fts.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <unistd.h> 56 #include <util.h> 57 58 void usage(void); 59 60 int 61 main(int argc, char *argv[]) 62 { 63 FTS *ftsp; 64 FTSENT *p; 65 u_long clear, set, newflags; 66 long val; 67 int Hflag, Lflag, Rflag, ch, fts_options, hflag, oct, rval; 68 char *flags, *ep; 69 int (*change_flags)(const char *, u_long); 70 71 Hflag = Lflag = Rflag = hflag = 0; 72 while ((ch = getopt(argc, argv, "HLPRh")) != -1) 73 switch (ch) { 74 case 'H': 75 Hflag = 1; 76 Lflag = 0; 77 break; 78 case 'L': 79 Lflag = 1; 80 Hflag = 0; 81 break; 82 case 'P': 83 Hflag = Lflag = 0; 84 break; 85 case 'R': 86 Rflag = 1; 87 break; 88 case 'h': 89 hflag = 1; 90 break; 91 case '?': 92 default: 93 usage(); 94 } 95 argv += optind; 96 argc -= optind; 97 98 if (argc < 2) 99 usage(); 100 101 fts_options = FTS_PHYSICAL; 102 if (Rflag) { 103 if (Hflag) 104 fts_options |= FTS_COMFOLLOW; 105 if (Lflag) { 106 fts_options &= ~FTS_PHYSICAL; 107 fts_options |= FTS_LOGICAL; 108 } 109 } else if (!hflag) 110 fts_options |= FTS_COMFOLLOW; 111 112 flags = *argv; 113 if (*flags >= '0' && *flags <= '7') { 114 errno = 0; 115 val = strtol(flags, &ep, 8); 116 if (val < 0) 117 errno = ERANGE; 118 if (errno) 119 err(1, "invalid flags: %s", flags); 120 if (*ep) 121 errx(1, "invalid flags: %s", flags); 122 set = val; 123 oct = 1; 124 } else { 125 if (string_to_flags(&flags, &set, &clear)) 126 errx(1, "invalid flag: %s", flags); 127 clear = ~clear; 128 oct = 0; 129 } 130 131 if ((ftsp = fts_open(++argv, fts_options, NULL)) == NULL) 132 err(1, "fts_open"); 133 134 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 135 change_flags = chflags; 136 switch (p->fts_info) { 137 case FTS_D: 138 if (Rflag) /* Change it at FTS_DP. */ 139 continue; 140 fts_set(ftsp, p, FTS_SKIP); 141 break; 142 case FTS_DNR: /* Warn, chflag, continue. */ 143 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 144 rval = 1; 145 break; 146 case FTS_ERR: /* Warn, continue. */ 147 case FTS_NS: 148 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 149 rval = 1; 150 continue; 151 case FTS_SL: /* Ignore unless -h. */ 152 /* 153 * All symlinks we found while doing a physical 154 * walk end up here. 155 */ 156 if (!hflag) 157 continue; 158 /* 159 * Note that if we follow a symlink, fts_info is 160 * not FTS_SL but FTS_F or whatever. And we should 161 * use lchflags only for FTS_SL and should use chflags 162 * for others. 163 */ 164 change_flags = lchflags; 165 break; 166 case FTS_SLNONE: /* Ignore. */ 167 /* 168 * The only symlinks that end up here are ones that 169 * don't point to anything. Note that if we are 170 * doing a phisycal walk, we never reach here unless 171 * we asked to follow explicitly. 172 */ 173 continue; 174 default: 175 break; 176 } 177 if (oct) 178 newflags = set; 179 else { 180 newflags = p->fts_statp->st_flags; 181 newflags |= set; 182 newflags &= clear; 183 } 184 if ((*change_flags)(p->fts_accpath, newflags)) { 185 warn("%s", p->fts_path); 186 rval = 1; 187 } 188 } 189 if (errno) 190 err(1, "fts_read"); 191 exit(rval); 192 } 193 194 void 195 usage(void) 196 { 197 198 (void)fprintf(stderr, 199 "usage: chflags [-R [-H | -L | -P]] [-h] flags file ...\n"); 200 exit(1); 201 } 202