1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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/types.h> 33 #include <sys/stat.h> 34 35 #include <err.h> 36 #include <errno.h> 37 #include <fcntl.h> 38 #include <fts.h> 39 #include <signal.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 static volatile sig_atomic_t siginfo; 46 47 static void usage(void) __dead2; 48 49 static void 50 siginfo_handler(int sig __unused) 51 { 52 53 siginfo = 1; 54 } 55 56 int 57 main(int argc, char *argv[]) 58 { 59 FTS *ftsp; 60 FTSENT *p; 61 u_long clear, newflags, set; 62 long val; 63 int Hflag, Lflag, Rflag, fflag, hflag, vflag, xflag; 64 int ch, e, fts_options, oct, rval; 65 char *flags, *ep; 66 67 Hflag = Lflag = Rflag = fflag = hflag = vflag = xflag = 0; 68 while ((ch = getopt(argc, argv, "HLPRfhvx")) != -1) 69 switch (ch) { 70 case 'H': 71 Hflag = 1; 72 Lflag = 0; 73 break; 74 case 'L': 75 Lflag = 1; 76 Hflag = 0; 77 break; 78 case 'P': 79 Hflag = Lflag = 0; 80 break; 81 case 'R': 82 Rflag = 1; 83 break; 84 case 'f': 85 fflag = 1; 86 break; 87 case 'h': 88 hflag = 1; 89 break; 90 case 'v': 91 vflag++; 92 break; 93 case 'x': 94 xflag = 1; 95 break; 96 case '?': 97 default: 98 usage(); 99 } 100 argv += optind; 101 argc -= optind; 102 103 if (argc < 2) 104 usage(); 105 106 (void)signal(SIGINFO, siginfo_handler); 107 108 if (Rflag) { 109 if (hflag) 110 errx(1, "the -R and -h options may not be " 111 "specified together."); 112 if (Lflag) { 113 fts_options = FTS_LOGICAL; 114 } else { 115 fts_options = FTS_PHYSICAL; 116 117 if (Hflag) { 118 fts_options |= FTS_COMFOLLOW; 119 } 120 } 121 } else if (hflag) { 122 fts_options = FTS_PHYSICAL; 123 } else { 124 fts_options = FTS_LOGICAL; 125 } 126 if (xflag) 127 fts_options |= FTS_XDEV; 128 129 flags = *argv; 130 if (*flags >= '0' && *flags <= '7') { 131 errno = 0; 132 val = strtol(flags, &ep, 8); 133 if (val < 0) 134 errno = ERANGE; 135 if (errno) 136 err(1, "invalid flags: %s", flags); 137 if (*ep) 138 errx(1, "invalid flags: %s", flags); 139 set = val; 140 oct = 1; 141 } else { 142 if (strtofflags(&flags, &set, &clear)) 143 errx(1, "invalid flag: %s", flags); 144 clear = ~clear; 145 oct = 0; 146 } 147 148 if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL) 149 err(1, NULL); 150 151 for (rval = 0; errno = 0, (p = fts_read(ftsp)) != NULL;) { 152 int atflag; 153 154 if ((fts_options & FTS_LOGICAL) || 155 ((fts_options & FTS_COMFOLLOW) && 156 p->fts_level == FTS_ROOTLEVEL)) 157 atflag = 0; 158 else 159 atflag = AT_SYMLINK_NOFOLLOW; 160 161 switch (p->fts_info) { 162 case FTS_D: /* Change it at FTS_DP if we're recursive. */ 163 if (!Rflag) 164 fts_set(ftsp, p, FTS_SKIP); 165 continue; 166 case FTS_DNR: /* Warn, chflags. */ 167 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 168 rval = 1; 169 break; 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 default: 176 break; 177 } 178 if (oct) 179 newflags = set; 180 else 181 newflags = (p->fts_statp->st_flags | set) & clear; 182 if (newflags == p->fts_statp->st_flags) 183 continue; 184 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags, 185 atflag) == -1) { 186 e = errno; 187 if (!fflag) { 188 warnc(e, "%s", p->fts_path); 189 rval = 1; 190 } 191 if (siginfo) { 192 (void)printf("%s: %s\n", p->fts_path, 193 strerror(e)); 194 siginfo = 0; 195 } 196 } else if (vflag || siginfo) { 197 (void)printf("%s", p->fts_path); 198 if (vflag > 1 || siginfo) 199 (void)printf(": 0%lo -> 0%lo", 200 (u_long)p->fts_statp->st_flags, 201 newflags); 202 (void)printf("\n"); 203 siginfo = 0; 204 } 205 } 206 if (errno) 207 err(1, "fts_read"); 208 exit(rval); 209 } 210 211 static void 212 usage(void) 213 { 214 (void)fprintf(stderr, 215 "usage: chflags [-fhvx] [-R [-H | -L | -P]] flags file ...\n"); 216 exit(1); 217 } 218