1 /* $NetBSD: chflags.c,v 1.10 2003/08/07 11:13:17 agc 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 1.10 2003/08/07 11:13:17 agc 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 int main __P((int, char **)); 60 void usage __P((void)); 61 62 int 63 main(argc, argv) 64 int argc; 65 char *argv[]; 66 { 67 FTS *ftsp; 68 FTSENT *p; 69 u_long clear, set, newflags; 70 long val; 71 int Hflag, Lflag, Rflag, ch, fts_options, hflag, oct, rval; 72 char *flags, *ep; 73 int (*change_flags) __P((const char *, u_long)); 74 75 Hflag = Lflag = Rflag = hflag = 0; 76 while ((ch = getopt(argc, argv, "HLPRh")) != -1) 77 switch (ch) { 78 case 'H': 79 Hflag = 1; 80 Lflag = 0; 81 break; 82 case 'L': 83 Lflag = 1; 84 Hflag = 0; 85 break; 86 case 'P': 87 Hflag = Lflag = 0; 88 break; 89 case 'R': 90 Rflag = 1; 91 break; 92 case 'h': 93 hflag = 1; 94 break; 95 case '?': 96 default: 97 usage(); 98 } 99 argv += optind; 100 argc -= optind; 101 102 if (argc < 2) 103 usage(); 104 105 fts_options = FTS_PHYSICAL; 106 if (Rflag) { 107 if (Hflag) 108 fts_options |= FTS_COMFOLLOW; 109 if (Lflag) { 110 fts_options &= ~FTS_PHYSICAL; 111 fts_options |= FTS_LOGICAL; 112 } 113 } else if (!hflag) 114 fts_options |= FTS_COMFOLLOW; 115 116 flags = *argv; 117 if (*flags >= '0' && *flags <= '7') { 118 errno = 0; 119 val = strtol(flags, &ep, 8); 120 if (val < 0) 121 errno = ERANGE; 122 if (errno) 123 err(1, "invalid flags: %s", flags); 124 if (*ep) 125 errx(1, "invalid flags: %s", flags); 126 set = val; 127 oct = 1; 128 } else { 129 if (string_to_flags(&flags, &set, &clear)) 130 errx(1, "invalid flag: %s", flags); 131 clear = ~clear; 132 oct = 0; 133 } 134 135 if ((ftsp = fts_open(++argv, fts_options, NULL)) == NULL) 136 err(1, "fts_open"); 137 138 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 139 change_flags = chflags; 140 switch (p->fts_info) { 141 case FTS_D: 142 if (Rflag) /* Change it at FTS_DP. */ 143 continue; 144 fts_set(ftsp, p, FTS_SKIP); 145 break; 146 case FTS_DNR: /* Warn, chflag, continue. */ 147 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 148 rval = 1; 149 break; 150 case FTS_ERR: /* Warn, continue. */ 151 case FTS_NS: 152 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 153 rval = 1; 154 continue; 155 case FTS_SL: /* Ignore unless -h. */ 156 /* 157 * All symlinks we found while doing a physical 158 * walk end up here. 159 */ 160 if (!hflag) 161 continue; 162 /* 163 * Note that if we follow a symlink, fts_info is 164 * not FTS_SL but FTS_F or whatever. And we should 165 * use lchflags only for FTS_SL and should use chflags 166 * for others. 167 */ 168 change_flags = lchflags; 169 break; 170 case FTS_SLNONE: /* Ignore. */ 171 /* 172 * The only symlinks that end up here are ones that 173 * don't point to anything. Note that if we are 174 * doing a phisycal walk, we never reach here unless 175 * we asked to follow explicitly. 176 */ 177 continue; 178 default: 179 break; 180 } 181 if (oct) 182 newflags = set; 183 else { 184 newflags = p->fts_statp->st_flags; 185 newflags |= set; 186 newflags &= clear; 187 } 188 if ((*change_flags)(p->fts_accpath, newflags)) { 189 warn("%s", p->fts_path); 190 rval = 1; 191 } 192 } 193 if (errno) 194 err(1, "fts_read"); 195 exit(rval); 196 } 197 198 void 199 usage() 200 { 201 202 (void)fprintf(stderr, 203 "usage: chflags [-R [-H | -L | -P]] [-h] flags file ...\n"); 204 exit(1); 205 } 206