chflags/chflags.c

   1 /*      $NetBSD: chflags.c,v 1.5 1997/10/18 12:39:54 lukem Exp $        */
   2
   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. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by the University of
  18  *      California, Berkeley and its contributors.
  19  * 4. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <sys/cdefs.h>
  37 #ifndef lint
  38 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\n\
  39         The Regents of the University of California.  All rights reserved.\n");
  40 #endif /* not lint */
  41
  42 #ifndef lint
  43 #if 0
  44 static char sccsid[] = "from: @(#)chflags.c     8.5 (Berkeley) 4/1/94";
  45 #else
  46 __RCSID("$NetBSD: chflags.c,v 1.5 1997/10/18 12:39:54 lukem Exp $");
  47 #endif
  48 #endif /* not lint */
  49
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52
  53 #include <err.h>
  54 #include <errno.h>
  55 #include <fts.h>
  56 #include <stdio.h>
  57 #include <stdlib.h>
  58 #include <string.h>
  59 #include <unistd.h>
  60
  61 int     main __P((int, char **));
  62 u_long  string_to_flags __P((char **, u_long *, u_long *));
  63 void    usage __P((void));
  64
  65 int
  66 main(argc, argv)
  67         int argc;
  68         char *argv[];
  69 {
  70         FTS *ftsp;
  71         FTSENT *p;
  72         u_long clear, set;
  73         long val;
  74         int Hflag, Lflag, Pflag, Rflag, ch, fts_options, oct, rval;
  75         char *flags, *ep;
  76
  77         Hflag = Lflag = Pflag = Rflag = 0;
  78         while ((ch = getopt(argc, argv, "HLPR")) != -1)
  79                 switch (ch) {
  80                 case 'H':
  81                         Hflag = 1;
  82                         Lflag = Pflag = 0;
  83                         break;
  84                 case 'L':
  85                         Lflag = 1;
  86                         Hflag = Pflag = 0;
  87                         break;
  88                 case 'P':
  89                         Pflag = 1;
  90                         Hflag = Lflag = 0;
  91                         break;
  92                 case 'R':
  93                         Rflag = 1;
  94                         break;
  95                 case '?':
  96                 default:
  97                         usage();
  98                 }
  99         argv += optind;
 100         argc -= optind;
 101
 102         if (argc < 2)
 103                 usage();
 104
 105         fts_options = FTS_PHYSICAL;
 106         if (Rflag) {
 107                 if (Hflag)
 108                         fts_options |= FTS_COMFOLLOW;
 109                 if (Lflag) {
 110                         fts_options &= ~FTS_PHYSICAL;
 111                         fts_options |= FTS_LOGICAL;
 112                 }
 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 (string_to_flags(&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 , 0)) == NULL)
 135                 err(1, "fts_open `%s'", argv[0]);
 136
 137         for (rval = 0; (p = fts_read(ftsp)) != NULL;) {
 138                 switch (p->fts_info) {
 139                 case FTS_D:
 140                         if (Rflag)              /* Change it at FTS_DP. */
 141                                 continue;
 142                         fts_set(ftsp, p, FTS_SKIP);
 143                         break;
 144                 case FTS_DNR:                   /* Warn, chflag, continue. */
 145                         warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
 146                         rval = 1;
 147                         break;
 148                 case FTS_ERR:                   /* Warn, continue. */
 149                 case FTS_NS:
 150                         warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
 151                         rval = 1;
 152                         continue;
 153                 case FTS_SL:                    /* Ignore. */
 154                 case FTS_SLNONE:
 155                         /*
 156                          * The only symlinks that end up here are ones that
 157                          * don't point to anything and ones that we found
 158                          * doing a physical walk.
 159                          */
 160                         continue;
 161                 default:
 162                         break;
 163                 }
 164                 if (oct) {
 165                         if (!chflags(p->fts_accpath, set))
 166                                 continue;
 167                 } else {
 168                         p->fts_statp->st_flags |= set;
 169                         p->fts_statp->st_flags &= clear;
 170                         if (!chflags(p->fts_accpath, p->fts_statp->st_flags))
 171                                 continue;
 172                 }
 173                 warn("%s", p->fts_path);
 174                 rval = 1;
 175         }
 176         if (errno)
 177                 err(1, "fts_read");
 178         exit(rval);
 179 }
 180
 181 void
 182 usage()
 183 {
 184         (void)fprintf(stderr,
 185             "usage: chflags [-R [-H | -L | -P]] flags file ...\n");
 186         exit(1);
 187 }