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 #include <sys/types.h> 46 #include <sys/stat.h> 47 48 #include <err.h> 49 #include <errno.h> 50 #include <fcntl.h> 51 #include <fts.h> 52 #include <signal.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <unistd.h> 57 58 static volatile sig_atomic_t siginfo; 59 60 static void usage(void) __dead2; 61 62 static void 63 siginfo_handler(int sig __unused) 64 { 65 66 siginfo = 1; 67 } 68 69 int 70 main(int argc, char *argv[]) 71 { 72 FTS *ftsp; 73 FTSENT *p; 74 u_long clear, newflags, set; 75 long val; 76 int Hflag, Lflag, Rflag, fflag, hflag, vflag, xflag; 77 int ch, fts_options, oct, rval; 78 char *flags, *ep; 79 80 Hflag = Lflag = Rflag = fflag = hflag = vflag = xflag = 0; 81 while ((ch = getopt(argc, argv, "HLPRfhvx")) != -1) 82 switch (ch) { 83 case 'H': 84 Hflag = 1; 85 Lflag = 0; 86 break; 87 case 'L': 88 Lflag = 1; 89 Hflag = 0; 90 break; 91 case 'P': 92 Hflag = Lflag = 0; 93 break; 94 case 'R': 95 Rflag = 1; 96 break; 97 case 'f': 98 fflag = 1; 99 break; 100 case 'h': 101 hflag = 1; 102 break; 103 case 'v': 104 vflag++; 105 break; 106 case 'x': 107 xflag = 1; 108 break; 109 case '?': 110 default: 111 usage(); 112 } 113 argv += optind; 114 argc -= optind; 115 116 if (argc < 2) 117 usage(); 118 119 (void)signal(SIGINFO, siginfo_handler); 120 121 if (Rflag) { 122 if (hflag) 123 errx(1, "the -R and -h options may not be " 124 "specified together."); 125 if (Lflag) { 126 fts_options = FTS_LOGICAL; 127 } else { 128 fts_options = FTS_PHYSICAL; 129 130 if (Hflag) { 131 fts_options |= FTS_COMFOLLOW; 132 } 133 } 134 } else if (hflag) { 135 fts_options = FTS_PHYSICAL; 136 } else { 137 fts_options = FTS_LOGICAL; 138 } 139 if (xflag) 140 fts_options |= FTS_XDEV; 141 142 flags = *argv; 143 if (*flags >= '0' && *flags <= '7') { 144 errno = 0; 145 val = strtol(flags, &ep, 8); 146 if (val < 0) 147 errno = ERANGE; 148 if (errno) 149 err(1, "invalid flags: %s", flags); 150 if (*ep) 151 errx(1, "invalid flags: %s", flags); 152 set = val; 153 oct = 1; 154 } else { 155 if (strtofflags(&flags, &set, &clear)) 156 errx(1, "invalid flag: %s", flags); 157 clear = ~clear; 158 oct = 0; 159 } 160 161 if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL) 162 err(1, NULL); 163 164 for (rval = 0; errno = 0, (p = fts_read(ftsp)) != NULL;) { 165 int atflag; 166 167 if ((fts_options & FTS_LOGICAL) || 168 ((fts_options & FTS_COMFOLLOW) && 169 p->fts_level == FTS_ROOTLEVEL)) 170 atflag = 0; 171 else 172 atflag = AT_SYMLINK_NOFOLLOW; 173 174 switch (p->fts_info) { 175 case FTS_D: /* Change it at FTS_DP if we're recursive. */ 176 if (!Rflag) 177 fts_set(ftsp, p, FTS_SKIP); 178 continue; 179 case FTS_DNR: /* Warn, chflags. */ 180 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 181 rval = 1; 182 break; 183 case FTS_ERR: /* Warn, continue. */ 184 case FTS_NS: 185 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 186 rval = 1; 187 continue; 188 default: 189 break; 190 } 191 if (oct) 192 newflags = set; 193 else 194 newflags = (p->fts_statp->st_flags | set) & clear; 195 if (newflags == p->fts_statp->st_flags) 196 continue; 197 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags, 198 atflag) == -1 && !fflag) { 199 warn("%s", p->fts_path); 200 rval = 1; 201 } else if (vflag || siginfo) { 202 (void)printf("%s", p->fts_path); 203 if (vflag > 1 || siginfo) 204 (void)printf(": 0%lo -> 0%lo", 205 (u_long)p->fts_statp->st_flags, 206 newflags); 207 (void)printf("\n"); 208 siginfo = 0; 209 } 210 } 211 if (errno) 212 err(1, "fts_read"); 213 exit(rval); 214 } 215 216 static void 217 usage(void) 218 { 219 (void)fprintf(stderr, 220 "usage: chflags [-fhvx] [-R [-H | -L | -P]] flags file ...\n"); 221 exit(1); 222 } 223