usr.sbin/mtree/verify.c

   1 /*-
   2  * Copyright (c) 1990, 1993
   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  * @(#)verify.c 8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: src/usr.sbin/mtree/verify.c,v 1.10.2.2 2001/01/12 19:17:18 phk Exp $
  31  */
  32
  33 #include <sys/param.h>
  34 #include <sys/stat.h>
  35 #include <dirent.h>
  36 #include <err.h>
  37 #include <errno.h>
  38 #include <fts.h>
  39 #include <fnmatch.h>
  40 #include <stdio.h>
  41 #include <unistd.h>
  42 #include "mtree.h"
  43 #include "extern.h"
  44
  45 static NODE *root;
  46 static char path[MAXPATHLEN];
  47
  48 static void     miss(NODE *, char *);
  49 static int      vwalk(void);
  50
  51 int
  52 verify(void)
  53 {
  54         int rval;
  55
  56         root = spec();
  57         rval = vwalk();
  58         miss(root, path);
  59         return (rval);
  60 }
  61
  62 static int
  63 vwalk(void)
  64 {
  65         FTS *t;
  66         FTSENT *p;
  67         NODE *ep, *level;
  68         int specdepth, rval;
  69         char *argv[2], dot[] = ".";
  70
  71         argv[0] = dot;
  72         argv[1] = NULL;
  73         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  74                 err(1, "line %d: fts_open", lineno);
  75         level = root;
  76         specdepth = rval = 0;
  77         while ((p = fts_read(t))) {
  78                 if (check_excludes(p->fts_name, p->fts_path)) {
  79                         fts_set(t, p, FTS_SKIP);
  80                         continue;
  81                 }
  82                 switch(p->fts_info) {
  83                 case FTS_D:
  84                 case FTS_SL:
  85                         break;
  86                 case FTS_DP:
  87                         if (specdepth > p->fts_level) {
  88                                 for (level = level->parent; level->prev;
  89                                       level = level->prev);
  90                                 --specdepth;
  91                         }
  92                         continue;
  93                 case FTS_DNR:
  94                 case FTS_ERR:
  95                 case FTS_NS:
  96                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
  97                         continue;
  98                 default:
  99                         if (dflag)
 100                                 continue;
 101                 }
 102
 103                 if (specdepth != p->fts_level)
 104                         goto extra;
 105                 for (ep = level; ep; ep = ep->next)
 106                         if ((ep->flags & F_MAGIC &&
 107                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 108                             !strcmp(ep->name, p->fts_name)) {
 109                                 ep->flags |= F_VISIT;
 110                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 111                                     compare(ep, p))
 112                                         rval = MISMATCHEXIT;
 113                                 if (ep->flags & F_IGN)
 114                                         fts_set(t, p, FTS_SKIP);
 115                                 else if (ep->child && ep->type == F_DIR &&
 116                                     p->fts_info == FTS_D) {
 117                                         level = ep->child;
 118                                         ++specdepth;
 119                                 }
 120                                 break;
 121                         }
 122
 123                 if (ep)
 124                         continue;
 125 extra:
 126                 if (!eflag) {
 127                         printf("%s extra", RP(p));
 128                         if (rflag) {
 129                                 if ((S_ISDIR(p->fts_statp->st_mode)
 130                                     ? rmdir : unlink)(p->fts_accpath)) {
 131                                         printf(", not removed: %s",
 132                                             strerror(errno));
 133                                 } else
 134                                         printf(", removed");
 135                         }
 136                         putchar('\n');
 137                 }
 138                 fts_set(t, p, FTS_SKIP);
 139         }
 140         fts_close(t);
 141         if (sflag)
 142                 warnx("%s checksum: %u", fullpath, crc_total);
 143         return (rval);
 144 }
 145
 146 static void
 147 miss(NODE *p, char *tail)
 148 {
 149         int create;
 150         char *tp;
 151         const char *type;
 152
 153         for (; p; p = p->next) {
 154                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 155                         continue;
 156                 strcpy(tail, p->name);
 157                 if (!(p->flags & F_VISIT)) {
 158                         /* Don't print missing message if file exists as a
 159                            symbolic link and the -q flag is set. */
 160                         struct stat statbuf;
 161
 162                         if (qflag && stat(path, &statbuf) == 0)
 163                                 p->flags |= F_VISIT;
 164                         else
 165                                 printf("%s missing", path);
 166                 }
 167                 if (p->type != F_DIR && p->type != F_LINK) {
 168                         putchar('\n');
 169                         continue;
 170                 }
 171
 172                 create = 0;
 173                 if (p->type == F_LINK)
 174                         type = "symlink";
 175                 else
 176                         type = "directory";
 177                 if (!(p->flags & F_VISIT) && uflag) {
 178                         if (!(p->flags & (F_UID | F_UNAME)))
 179                                 printf(" (%s not created: user not specified)", type);
 180                         else if (!(p->flags & (F_GID | F_GNAME)))
 181                                 printf(" (%s not created: group not specified)", type);
 182                         else if (p->type == F_LINK) {
 183                                 if (symlink(p->slink, path))
 184                                         printf(" (symlink not created: %s)\n",
 185                                             strerror(errno));
 186                                 else
 187                                         printf(" (created)\n");
 188                                 if (lchown(path, p->st_uid, p->st_gid))
 189                                         printf("%s: user/group not modified: %s\n",
 190                                             path, strerror(errno));
 191                                 continue;
 192                         } else if (!(p->flags & F_MODE))
 193                             printf(" (directory not created: mode not specified)");
 194                         else if (mkdir(path, S_IRWXU))
 195                                 printf(" (directory not created: %s)",
 196                                     strerror(errno));
 197                         else {
 198                                 create = 1;
 199                                 printf(" (created)");
 200                         }
 201                 }
 202                 if (!(p->flags & F_VISIT))
 203                         putchar('\n');
 204
 205                 for (tp = tail; *tp; ++tp);
 206                 *tp = '/';
 207                 miss(p->child, tp + 1);
 208                 *tp = '\0';
 209
 210                 if (!create)
 211                         continue;
 212                 if (chown(path, p->st_uid, p->st_gid)) {
 213                         printf("%s: user/group/mode not modified: %s\n",
 214                             path, strerror(errno));
 215                         printf("%s: warning: file mode %snot set\n", path,
 216                             (p->flags & F_FLAGS) ? "and file flags " : "");
 217                         continue;
 218                 }
 219                 if (chmod(path, p->st_mode))
 220                         printf("%s: permissions not set: %s\n",
 221                             path, strerror(errno));
 222                 if ((p->flags & F_FLAGS) && p->st_flags &&
 223                     chflags(path, p->st_flags))
 224                         printf("%s: file flags not set: %s\n",
 225                             path, strerror(errno));
 226         }
 227 }