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. 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  * @(#)verify.c 8.1 (Berkeley) 6/6/93
  34  * $FreeBSD: src/usr.sbin/mtree/verify.c,v 1.10.2.2 2001/01/12 19:17:18 phk Exp $
  35  * $DragonFly: src/usr.sbin/mtree/verify.c,v 1.5 2004/03/15 16:24:22 dillon Exp $
  36  */
  37
  38 #include <sys/param.h>
  39 #include <sys/stat.h>
  40 #include <dirent.h>
  41 #include <err.h>
  42 #include <errno.h>
  43 #include <fts.h>
  44 #include <fnmatch.h>
  45 #include <stdio.h>
  46 #include <unistd.h>
  47 #include "mtree.h"
  48 #include "extern.h"
  49
  50 static NODE *root;
  51 static char path[MAXPATHLEN];
  52
  53 static void     miss(NODE *, char *);
  54 static int      vwalk(void);
  55
  56 int
  57 verify(void)
  58 {
  59         int rval;
  60
  61         root = spec();
  62         rval = vwalk();
  63         miss(root, path);
  64         return (rval);
  65 }
  66
  67 static int
  68 vwalk(void)
  69 {
  70         FTS *t;
  71         FTSENT *p;
  72         NODE *ep, *level;
  73         int specdepth, rval;
  74         char *argv[2], dot[] = ".";
  75
  76         argv[0] = dot;
  77         argv[1] = NULL;
  78         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  79                 err(1, "line %d: fts_open", lineno);
  80         level = root;
  81         specdepth = rval = 0;
  82         while ((p = fts_read(t))) {
  83                 if (check_excludes(p->fts_name, p->fts_path)) {
  84                         fts_set(t, p, FTS_SKIP);
  85                         continue;
  86                 }
  87                 switch(p->fts_info) {
  88                 case FTS_D:
  89                 case FTS_SL:
  90                         break;
  91                 case FTS_DP:
  92                         if (specdepth > p->fts_level) {
  93                                 for (level = level->parent; level->prev;
  94                                       level = level->prev);
  95                                 --specdepth;
  96                         }
  97                         continue;
  98                 case FTS_DNR:
  99                 case FTS_ERR:
 100                 case FTS_NS:
 101                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 102                         continue;
 103                 default:
 104                         if (dflag)
 105                                 continue;
 106                 }
 107
 108                 if (specdepth != p->fts_level)
 109                         goto extra;
 110                 for (ep = level; ep; ep = ep->next)
 111                         if ((ep->flags & F_MAGIC &&
 112                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 113                             !strcmp(ep->name, p->fts_name)) {
 114                                 ep->flags |= F_VISIT;
 115                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 116                                     compare(ep, p))
 117                                         rval = MISMATCHEXIT;
 118                                 if (ep->flags & F_IGN)
 119                                         fts_set(t, p, FTS_SKIP);
 120                                 else if (ep->child && ep->type == F_DIR &&
 121                                     p->fts_info == FTS_D) {
 122                                         level = ep->child;
 123                                         ++specdepth;
 124                                 }
 125                                 break;
 126                         }
 127
 128                 if (ep)
 129                         continue;
 130 extra:
 131                 if (!eflag) {
 132                         printf("%s extra", RP(p));
 133                         if (rflag) {
 134                                 if ((S_ISDIR(p->fts_statp->st_mode)
 135                                     ? rmdir : unlink)(p->fts_accpath)) {
 136                                         printf(", not removed: %s",
 137                                             strerror(errno));
 138                                 } else
 139                                         printf(", removed");
 140                         }
 141                         putchar('\n');
 142                 }
 143                 fts_set(t, p, FTS_SKIP);
 144         }
 145         fts_close(t);
 146         if (sflag)
 147                 warnx("%s checksum: %lu", fullpath, crc_total);
 148         return (rval);
 149 }
 150
 151 static void
 152 miss(NODE *p, char *tail)
 153 {
 154         int create;
 155         char *tp;
 156         const char *type;
 157
 158         for (; p; p = p->next) {
 159                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 160                         continue;
 161                 strcpy(tail, p->name);
 162                 if (!(p->flags & F_VISIT)) {
 163                         /* Don't print missing message if file exists as a
 164                            symbolic link and the -q flag is set. */
 165                         struct stat statbuf;
 166
 167                         if (qflag && stat(path, &statbuf) == 0)
 168                                 p->flags |= F_VISIT;
 169                         else
 170                                 printf("%s missing", path);
 171                 }
 172                 if (p->type != F_DIR && p->type != F_LINK) {
 173                         putchar('\n');
 174                         continue;
 175                 }
 176
 177                 create = 0;
 178                 if (p->type == F_LINK)
 179                         type = "symlink";
 180                 else
 181                         type = "directory";
 182                 if (!(p->flags & F_VISIT) && uflag) {
 183                         if (!(p->flags & (F_UID | F_UNAME)))
 184                                 printf(" (%s not created: user not specified)", type);
 185                         else if (!(p->flags & (F_GID | F_GNAME)))
 186                                 printf(" (%s not created: group not specified)", type);
 187                         else if (p->type == F_LINK) {
 188                                 if (symlink(p->slink, path))
 189                                         printf(" (symlink not created: %s)\n",
 190                                             strerror(errno));
 191                                 else
 192                                         printf(" (created)\n");
 193                                 if (lchown(path, p->st_uid, p->st_gid))
 194                                         printf("%s: user/group not modified: %s\n",
 195                                             path, strerror(errno));
 196                                 continue;
 197                         } else if (!(p->flags & F_MODE))
 198                             printf(" (directory not created: mode not specified)");
 199                         else if (mkdir(path, S_IRWXU))
 200                                 printf(" (directory not created: %s)",
 201                                     strerror(errno));
 202                         else {
 203                                 create = 1;
 204                                 printf(" (created)");
 205                         }
 206                 }
 207                 if (!(p->flags & F_VISIT))
 208                         putchar('\n');
 209
 210                 for (tp = tail; *tp; ++tp);
 211                 *tp = '/';
 212                 miss(p->child, tp + 1);
 213                 *tp = '\0';
 214
 215                 if (!create)
 216                         continue;
 217                 if (chown(path, p->st_uid, p->st_gid)) {
 218                         printf("%s: user/group/mode not modified: %s\n",
 219                             path, strerror(errno));
 220                         printf("%s: warning: file mode %snot set\n", path,
 221                             (p->flags & F_FLAGS) ? "and file flags " : "");
 222                         continue;
 223                 }
 224                 if (chmod(path, p->st_mode))
 225                         printf("%s: permissions not set: %s\n",
 226                             path, strerror(errno));
 227                 if ((p->flags & F_FLAGS) && p->st_flags &&
 228                     chflags(path, p->st_flags))
 229                         printf("%s: file flags not set: %s\n",
 230                             path, strerror(errno));
 231         }
 232 }