chflags/chflags.c

   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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifndef lint
  35 static const char copyright[] =
  36 "@(#) Copyright (c) 1992, 1993, 1994\n\
  37         The Regents of the University of California.  All rights reserved.\n";
  38 #endif
  39
  40 #if 0
  41 #ifndef lint
  42 static char sccsid[] = "@(#)chflags.c   8.5 (Berkeley) 4/1/94";
  43 #endif
  44 #endif
  45
  46 #include <sys/cdefs.h>
  47 __RCSID("$FreeBSD: src/usr.bin/chflags/chflags.c,v 1.16 2002/09/04 23:28:58 dwmalone Exp $");
  48
  49 #include <sys/types.h>
  50 #include <sys/stat.h>
  51
  52 #include <err.h>
  53 #include <errno.h>
  54 #include <fts.h>
  55 #include <stdio.h>
  56 #include <stdlib.h>
  57 #include <string.h>
  58 #include <unistd.h>
  59
  60 void    usage(void);
  61
  62 int
  63 main(int argc, char *argv[])
  64 {
  65         FTS *ftsp;
  66         FTSENT *p;
  67         u_long clear, set;
  68         long val;
  69         int Hflag, Lflag, Pflag, Rflag, ch, fts_options, oct, rval;
  70         char *flags, *ep;
  71
  72         Hflag = Lflag = Pflag = Rflag = 0;
  73         while ((ch = getopt(argc, argv, "HLPR")) != -1)
  74                 switch (ch) {
  75                 case 'H':
  76                         Hflag = 1;
  77                         Lflag = Pflag = 0;
  78                         break;
  79                 case 'L':
  80                         Lflag = 1;
  81                         Hflag = Pflag = 0;
  82                         break;
  83                 case 'P':
  84                         Pflag = 1;
  85                         Hflag = Lflag = 0;
  86                         break;
  87                 case 'R':
  88                         Rflag = 1;
  89                         break;
  90                 case '?':
  91                 default:
  92                         usage();
  93                 }
  94         argv += optind;
  95         argc -= optind;
  96
  97         if (argc < 2)
  98                 usage();
  99
 100         if (Rflag) {
 101                 fts_options = FTS_PHYSICAL;
 102                 if (Hflag)
 103                         fts_options |= FTS_COMFOLLOW;
 104                 if (Lflag) {
 105                         fts_options &= ~FTS_PHYSICAL;
 106                         fts_options |= FTS_LOGICAL;
 107                 }
 108         } else
 109                 fts_options = FTS_LOGICAL;
 110
 111         flags = *argv;
 112         if (*flags >= '0' && *flags <= '7') {
 113                 errno = 0;
 114                 val = strtol(flags, &ep, 8);
 115                 if (val < 0)
 116                         errno = ERANGE;
 117                 if (errno)
 118                         err(1, "invalid flags: %s", flags);
 119                 if (*ep)
 120                         errx(1, "invalid flags: %s", flags);
 121                 set = val;
 122                 oct = 1;
 123         } else {
 124                 if (strtofflags(&flags, &set, &clear))
 125                         errx(1, "invalid flag: %s", flags);
 126                 clear = ~clear;
 127                 oct = 0;
 128         }
 129
 130         if ((ftsp = fts_open(++argv, fts_options , 0)) == NULL)
 131                 err(1, NULL);
 132
 133         for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
 134                 switch (p->fts_info) {
 135                 case FTS_D:
 136                         if (Rflag)              /* Change it at FTS_DP. */
 137                                 continue;
 138                         fts_set(ftsp, p, FTS_SKIP);
 139                         break;
 140                 case FTS_DNR:                   /* Warn, chflag, continue. */
 141                         warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
 142                         rval = 1;
 143                         break;
 144                 case FTS_ERR:                   /* Warn, continue. */
 145                 case FTS_NS:
 146                         warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
 147                         rval = 1;
 148                         continue;
 149                 case FTS_SL:                    /* Ignore. */
 150                 case FTS_SLNONE:
 151                         /*
 152                          * The only symlinks that end up here are ones that
 153                          * don't point to anything and ones that we found
 154                          * doing a physical walk.
 155                          */
 156                         continue;
 157                 default:
 158                         break;
 159                 }
 160                 if (oct) {
 161                         if (!chflags(p->fts_accpath, set))
 162                                 continue;
 163                 } else {
 164                         p->fts_statp->st_flags |= set;
 165                         p->fts_statp->st_flags &= clear;
 166                         if (!chflags(p->fts_accpath, (u_long)p->fts_statp->st_flags))
 167                                 continue;
 168                 }
 169                 warn("%s", p->fts_path);
 170                 rval = 1;
 171         }
 172         if (errno)
 173                 err(1, "fts_read");
 174         exit(rval);
 175 }
 176
 177 void
 178 usage(void)
 179 {
 180         (void)fprintf(stderr,
 181             "usage: chflags [-R [-H | -L | -P]] flags file ...\n");
 182         exit(1);
 183 }