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 #if 0 33 #ifndef lint 34 static const char copyright[] = 35 "@(#) Copyright (c) 1992, 1993, 1994\n\ 36 The Regents of the University of California. All rights reserved.\n"; 37 #endif 38 39 #endif 40 41 #include <sys/cdefs.h> 42 #include <sys/types.h> 43 #include <sys/stat.h> 44 45 #include <err.h> 46 #include <errno.h> 47 #include <fcntl.h> 48 #include <fts.h> 49 #include <signal.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 static volatile sig_atomic_t siginfo; 56 57 static void usage(void) __dead2; 58 59 static void 60 siginfo_handler(int sig __unused) 61 { 62 63 siginfo = 1; 64 } 65 66 int 67 main(int argc, char *argv[]) 68 { 69 FTS *ftsp; 70 FTSENT *p; 71 u_long clear, newflags, set; 72 long val; 73 int Hflag, Lflag, Rflag, fflag, hflag, vflag, xflag; 74 int ch, fts_options, oct, rval; 75 char *flags, *ep; 76 77 Hflag = Lflag = Rflag = fflag = hflag = vflag = xflag = 0; 78 while ((ch = getopt(argc, argv, "HLPRfhvx")) != -1) 79 switch (ch) { 80 case 'H': 81 Hflag = 1; 82 Lflag = 0; 83 break; 84 case 'L': 85 Lflag = 1; 86 Hflag = 0; 87 break; 88 case 'P': 89 Hflag = Lflag = 0; 90 break; 91 case 'R': 92 Rflag = 1; 93 break; 94 case 'f': 95 fflag = 1; 96 break; 97 case 'h': 98 hflag = 1; 99 break; 100 case 'v': 101 vflag++; 102 break; 103 case 'x': 104 xflag = 1; 105 break; 106 case '?': 107 default: 108 usage(); 109 } 110 argv += optind; 111 argc -= optind; 112 113 if (argc < 2) 114 usage(); 115 116 (void)signal(SIGINFO, siginfo_handler); 117 118 if (Rflag) { 119 if (hflag) 120 errx(1, "the -R and -h options may not be " 121 "specified together."); 122 if (Lflag) { 123 fts_options = FTS_LOGICAL; 124 } else { 125 fts_options = FTS_PHYSICAL; 126 127 if (Hflag) { 128 fts_options |= FTS_COMFOLLOW; 129 } 130 } 131 } else if (hflag) { 132 fts_options = FTS_PHYSICAL; 133 } else { 134 fts_options = FTS_LOGICAL; 135 } 136 if (xflag) 137 fts_options |= FTS_XDEV; 138 139 flags = *argv; 140 if (*flags >= '0' && *flags <= '7') { 141 errno = 0; 142 val = strtol(flags, &ep, 8); 143 if (val < 0) 144 errno = ERANGE; 145 if (errno) 146 err(1, "invalid flags: %s", flags); 147 if (*ep) 148 errx(1, "invalid flags: %s", flags); 149 set = val; 150 oct = 1; 151 } else { 152 if (strtofflags(&flags, &set, &clear)) 153 errx(1, "invalid flag: %s", flags); 154 clear = ~clear; 155 oct = 0; 156 } 157 158 if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL) 159 err(1, NULL); 160 161 for (rval = 0; errno = 0, (p = fts_read(ftsp)) != NULL;) { 162 int atflag; 163 164 if ((fts_options & FTS_LOGICAL) || 165 ((fts_options & FTS_COMFOLLOW) && 166 p->fts_level == FTS_ROOTLEVEL)) 167 atflag = 0; 168 else 169 atflag = AT_SYMLINK_NOFOLLOW; 170 171 switch (p->fts_info) { 172 case FTS_D: /* Change it at FTS_DP if we're recursive. */ 173 if (!Rflag) 174 fts_set(ftsp, p, FTS_SKIP); 175 continue; 176 case FTS_DNR: /* Warn, chflags. */ 177 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 178 rval = 1; 179 break; 180 case FTS_ERR: /* Warn, continue. */ 181 case FTS_NS: 182 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 183 rval = 1; 184 continue; 185 default: 186 break; 187 } 188 if (oct) 189 newflags = set; 190 else 191 newflags = (p->fts_statp->st_flags | set) & clear; 192 if (newflags == p->fts_statp->st_flags) 193 continue; 194 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags, 195 atflag) == -1 && !fflag) { 196 warn("%s", p->fts_path); 197 rval = 1; 198 } else if (vflag || siginfo) { 199 (void)printf("%s", p->fts_path); 200 if (vflag > 1 || siginfo) 201 (void)printf(": 0%lo -> 0%lo", 202 (u_long)p->fts_statp->st_flags, 203 newflags); 204 (void)printf("\n"); 205 siginfo = 0; 206 } 207 } 208 if (errno) 209 err(1, "fts_read"); 210 exit(rval); 211 } 212 213 static void 214 usage(void) 215 { 216 (void)fprintf(stderr, 217 "usage: chflags [-fhvx] [-R [-H | -L | -P]] flags file ...\n"); 218 exit(1); 219 } 220