1 /* $NetBSD: chflags.c,v 1.13 2005/02/17 17:09:48 xtraeme 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\n\ 35 The Regents of the University of California. All rights reserved.\n"); 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 1.13 2005/02/17 17:09:48 xtraeme 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 57 #include "stat_flags.h" 58 59 void usage(void); 60 61 int 62 main(int argc, char *argv[]) 63 { 64 FTS *ftsp; 65 FTSENT *p; 66 u_long clear, set, newflags; 67 long val; 68 int Hflag, Lflag, Rflag, ch, fts_options, hflag, oct, rval; 69 char *flags, *ep; 70 int (*change_flags)(const char *, u_long); 71 72 Hflag = Lflag = Rflag = hflag = 0; 73 while ((ch = getopt(argc, argv, "HLPRh")) != -1) 74 switch (ch) { 75 case 'H': 76 Hflag = 1; 77 Lflag = 0; 78 break; 79 case 'L': 80 Lflag = 1; 81 Hflag = 0; 82 break; 83 case 'P': 84 Hflag = Lflag = 0; 85 break; 86 case 'R': 87 Rflag = 1; 88 break; 89 case 'h': 90 hflag = 1; 91 break; 92 case '?': 93 default: 94 usage(); 95 } 96 argv += optind; 97 argc -= optind; 98 99 if (argc < 2) 100 usage(); 101 102 fts_options = FTS_PHYSICAL; 103 if (Rflag) { 104 if (Hflag) 105 fts_options |= FTS_COMFOLLOW; 106 if (Lflag) { 107 fts_options &= ~FTS_PHYSICAL; 108 fts_options |= FTS_LOGICAL; 109 } 110 } else if (!hflag) 111 fts_options |= FTS_COMFOLLOW; 112 113 flags = *argv; 114 if (*flags >= '0' && *flags <= '7') { 115 errno = 0; 116 val = strtol(flags, &ep, 8); 117 if (val < 0) 118 errno = ERANGE; 119 if (errno) 120 err(1, "invalid flags: %s", flags); 121 if (*ep) 122 errx(1, "invalid flags: %s", flags); 123 set = val; 124 oct = 1; 125 } else { 126 if (string_to_flags(&flags, &set, &clear)) 127 errx(1, "invalid flag: %s", flags); 128 clear = ~clear; 129 oct = 0; 130 } 131 132 if ((ftsp = fts_open(++argv, fts_options, NULL)) == NULL) 133 err(1, "fts_open"); 134 135 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 136 change_flags = chflags; 137 switch (p->fts_info) { 138 case FTS_D: 139 if (Rflag) /* Change it at FTS_DP. */ 140 continue; 141 fts_set(ftsp, p, FTS_SKIP); 142 break; 143 case FTS_DNR: /* Warn, chflag, continue. */ 144 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 145 rval = 1; 146 break; 147 case FTS_ERR: /* Warn, continue. */ 148 case FTS_NS: 149 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 150 rval = 1; 151 continue; 152 case FTS_SL: /* Ignore unless -h. */ 153 /* 154 * All symlinks we found while doing a physical 155 * walk end up here. 156 */ 157 if (!hflag) 158 continue; 159 /* 160 * Note that if we follow a symlink, fts_info is 161 * not FTS_SL but FTS_F or whatever. And we should 162 * use lchflags only for FTS_SL and should use chflags 163 * for others. 164 */ 165 change_flags = lchflags; 166 break; 167 case FTS_SLNONE: /* Ignore. */ 168 /* 169 * The only symlinks that end up here are ones that 170 * don't point to anything. Note that if we are 171 * doing a phisycal walk, we never reach here unless 172 * we asked to follow explicitly. 173 */ 174 continue; 175 default: 176 break; 177 } 178 if (oct) 179 newflags = set; 180 else { 181 newflags = p->fts_statp->st_flags; 182 newflags |= set; 183 newflags &= clear; 184 } 185 if ((*change_flags)(p->fts_accpath, newflags)) { 186 warn("%s", p->fts_path); 187 rval = 1; 188 } 189 } 190 if (errno) 191 err(1, "fts_read"); 192 exit(rval); 193 } 194 195 void 196 usage(void) 197 { 198 199 (void)fprintf(stderr, 200 "usage: chflags [-R [-H | -L | -P]] [-h] flags file ...\n"); 201 exit(1); 202 } 203