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 #ifndef lint 40 static char sccsid[] = "@(#)chflags.c 8.5 (Berkeley) 4/1/94"; 41 #endif 42 #endif 43 44 #include <sys/cdefs.h> 45 __FBSDID("$FreeBSD$"); 46 47 #include <sys/types.h> 48 #include <sys/stat.h> 49 50 #include <err.h> 51 #include <errno.h> 52 #include <fcntl.h> 53 #include <fts.h> 54 #include <signal.h> 55 #include <stdio.h> 56 #include <stdlib.h> 57 #include <string.h> 58 #include <unistd.h> 59 60 static volatile sig_atomic_t siginfo; 61 62 static void usage(void); 63 64 static void 65 siginfo_handler(int sig __unused) 66 { 67 68 siginfo = 1; 69 } 70 71 int 72 main(int argc, char *argv[]) 73 { 74 FTS *ftsp; 75 FTSENT *p; 76 u_long clear, newflags, set; 77 long val; 78 int Hflag, Lflag, Rflag, fflag, hflag, vflag, xflag; 79 int ch, fts_options, oct, rval; 80 char *flags, *ep; 81 82 Hflag = Lflag = Rflag = fflag = hflag = vflag = xflag = 0; 83 while ((ch = getopt(argc, argv, "HLPRfhvx")) != -1) 84 switch (ch) { 85 case 'H': 86 Hflag = 1; 87 Lflag = 0; 88 break; 89 case 'L': 90 Lflag = 1; 91 Hflag = 0; 92 break; 93 case 'P': 94 Hflag = Lflag = 0; 95 break; 96 case 'R': 97 Rflag = 1; 98 break; 99 case 'f': 100 fflag = 1; 101 break; 102 case 'h': 103 hflag = 1; 104 break; 105 case 'v': 106 vflag++; 107 break; 108 case 'x': 109 xflag = 1; 110 break; 111 case '?': 112 default: 113 usage(); 114 } 115 argv += optind; 116 argc -= optind; 117 118 if (argc < 2) 119 usage(); 120 121 (void)signal(SIGINFO, siginfo_handler); 122 123 if (Rflag) { 124 if (hflag) 125 errx(1, "the -R and -h options may not be " 126 "specified together."); 127 if (Lflag) { 128 fts_options = FTS_LOGICAL; 129 } else { 130 fts_options = FTS_PHYSICAL; 131 132 if (Hflag) { 133 fts_options |= FTS_COMFOLLOW; 134 } 135 } 136 } else if (hflag) { 137 fts_options = FTS_PHYSICAL; 138 } else { 139 fts_options = FTS_LOGICAL; 140 } 141 if (xflag) 142 fts_options |= FTS_XDEV; 143 144 flags = *argv; 145 if (*flags >= '0' && *flags <= '7') { 146 errno = 0; 147 val = strtol(flags, &ep, 8); 148 if (val < 0) 149 errno = ERANGE; 150 if (errno) 151 err(1, "invalid flags: %s", flags); 152 if (*ep) 153 errx(1, "invalid flags: %s", flags); 154 set = val; 155 oct = 1; 156 } else { 157 if (strtofflags(&flags, &set, &clear)) 158 errx(1, "invalid flag: %s", flags); 159 clear = ~clear; 160 oct = 0; 161 } 162 163 if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL) 164 err(1, NULL); 165 166 for (rval = 0; errno = 0, (p = fts_read(ftsp)) != NULL;) { 167 int atflag; 168 169 if ((fts_options & FTS_LOGICAL) || 170 ((fts_options & FTS_COMFOLLOW) && 171 p->fts_level == FTS_ROOTLEVEL)) 172 atflag = 0; 173 else 174 atflag = AT_SYMLINK_NOFOLLOW; 175 176 switch (p->fts_info) { 177 case FTS_D: /* Change it at FTS_DP if we're recursive. */ 178 if (!Rflag) 179 fts_set(ftsp, p, FTS_SKIP); 180 continue; 181 case FTS_DNR: /* Warn, chflags. */ 182 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 183 rval = 1; 184 break; 185 case FTS_ERR: /* Warn, continue. */ 186 case FTS_NS: 187 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 188 rval = 1; 189 continue; 190 default: 191 break; 192 } 193 if (oct) 194 newflags = set; 195 else 196 newflags = (p->fts_statp->st_flags | set) & clear; 197 if (newflags == p->fts_statp->st_flags) 198 continue; 199 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags, 200 atflag) == -1 && !fflag) { 201 warn("%s", p->fts_path); 202 rval = 1; 203 } else if (vflag || siginfo) { 204 (void)printf("%s", p->fts_path); 205 if (vflag > 1 || siginfo) 206 (void)printf(": 0%lo -> 0%lo", 207 (u_long)p->fts_statp->st_flags, 208 newflags); 209 (void)printf("\n"); 210 siginfo = 0; 211 } 212 } 213 if (errno) 214 err(1, "fts_read"); 215 exit(rval); 216 } 217 218 static void 219 usage(void) 220 { 221 (void)fprintf(stderr, 222 "usage: chflags [-fhvx] [-R [-H | -L | -P]] flags file ...\n"); 223 exit(1); 224 } 225