1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California. All rights reserved. 30 * @(#)chflags.c 8.5 (Berkeley) 4/1/94 31 * $FreeBSD: head/bin/chflags/chflags.c 282208 2015-04-29 00:49:00Z smh $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 38 #include <err.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include <fts.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 static void usage(void); 48 49 int 50 main(int argc, char *argv[]) 51 { 52 FTS *ftsp; 53 FTSENT *p; 54 u_long clear, newflags, set; 55 long val; 56 int Hflag, Lflag, Rflag, fflag, hflag, vflag; 57 int ch, fts_options, oct, rval; 58 char *flags, *ep; 59 60 Hflag = Lflag = Rflag = fflag = hflag = vflag = 0; 61 while ((ch = getopt(argc, argv, "HLPRfhv")) != -1) 62 switch (ch) { 63 case 'H': 64 Hflag = 1; 65 Lflag = 0; 66 break; 67 case 'L': 68 Lflag = 1; 69 Hflag = 0; 70 break; 71 case 'P': 72 Hflag = Lflag = 0; 73 break; 74 case 'R': 75 Rflag = 1; 76 break; 77 case 'f': 78 fflag = 1; 79 break; 80 case 'h': 81 hflag = 1; 82 break; 83 case 'v': 84 vflag++; 85 break; 86 case '?': 87 default: 88 usage(); 89 } 90 argv += optind; 91 argc -= optind; 92 93 if (argc < 2) 94 usage(); 95 96 if (Rflag) { 97 if (hflag) 98 errx(1, "the -R and -h options may not be " 99 "specified together."); 100 if (Lflag) { 101 fts_options = FTS_LOGICAL; 102 } else { 103 fts_options = FTS_PHYSICAL; 104 105 if (Hflag) { 106 fts_options |= FTS_COMFOLLOW; 107 } 108 } 109 } else if (hflag) { 110 fts_options = FTS_PHYSICAL; 111 } else { 112 fts_options = FTS_LOGICAL; 113 } 114 115 flags = *argv; 116 if (*flags >= '0' && *flags <= '7') { 117 errno = 0; 118 val = strtol(flags, &ep, 8); 119 if (val < 0) 120 errno = ERANGE; 121 if (errno) 122 err(1, "invalid flags: %s", flags); 123 if (*ep) 124 errx(1, "invalid flags: %s", flags); 125 set = val; 126 oct = 1; 127 } else { 128 if (strtofflags(&flags, &set, &clear)) 129 errx(1, "invalid flag: %s", flags); 130 clear = ~clear; 131 oct = 0; 132 } 133 134 if ((ftsp = fts_open(++argv, fts_options, NULL)) == NULL) 135 err(1, NULL); 136 137 for (rval = 0; (p = fts_read(ftsp)) != NULL;) { 138 int atflag; 139 140 if ((fts_options & FTS_LOGICAL) || 141 ((fts_options & FTS_COMFOLLOW) && 142 p->fts_level == FTS_ROOTLEVEL)) 143 atflag = 0; 144 else 145 atflag = AT_SYMLINK_NOFOLLOW; 146 147 switch (p->fts_info) { 148 case FTS_D: /* Change it at FTS_DP if we're recursive. */ 149 if (!Rflag) 150 fts_set(ftsp, p, FTS_SKIP); 151 continue; 152 case FTS_DNR: /* Warn, chflags. */ 153 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 154 rval = 1; 155 break; 156 case FTS_ERR: /* Warn, continue. */ 157 case FTS_NS: 158 warnx("%s: %s", p->fts_path, strerror(p->fts_errno)); 159 rval = 1; 160 continue; 161 default: 162 break; 163 } 164 if (oct) 165 newflags = set; 166 else 167 newflags = (p->fts_statp->st_flags | set) & clear; 168 if (newflags == p->fts_statp->st_flags) 169 continue; 170 if (chflagsat(AT_FDCWD, p->fts_accpath, newflags, 171 atflag) == -1 && !fflag) { 172 warn("%s", p->fts_path); 173 rval = 1; 174 } else if (vflag) { 175 printf("%s", p->fts_path); 176 if (vflag > 1) 177 printf(": 0%lo -> 0%lo", 178 (u_long)p->fts_statp->st_flags, 179 newflags); 180 printf("\n"); 181 } 182 } 183 if (errno) 184 err(1, "fts_read"); 185 exit(rval); 186 } 187 188 static void 189 usage(void) 190 { 191 fprintf(stderr, 192 "usage: chflags [-fhv] [-R [-H | -L | -P]] flags file ...\n"); 193 exit(1); 194 } 195