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  * $DragonFly: src/usr.sbin/mtree/verify.c,v 1.5 2004/03/15 16:24:22 dillon Exp $
  32  */
  33
  34 #include <sys/param.h>
  35 #include <sys/stat.h>
  36 #include <dirent.h>
  37 #include <err.h>
  38 #include <errno.h>
  39 #include <fts.h>
  40 #include <fnmatch.h>
  41 #include <stdio.h>
  42 #include <unistd.h>
  43 #include "mtree.h"
  44 #include "extern.h"
  45
  46 static NODE *root;
  47 static char path[MAXPATHLEN];
  48
  49 static void     miss(NODE *, char *);
  50 static int      vwalk(void);
  51
  52 int
  53 verify(void)
  54 {
  55         int rval;
  56
  57         root = spec();
  58         rval = vwalk();
  59         miss(root, path);
  60         return (rval);
  61 }
  62
  63 static int
  64 vwalk(void)
  65 {
  66         FTS *t;
  67         FTSENT *p;
  68         NODE *ep, *level;
  69         int specdepth, rval;
  70         char *argv[2], dot[] = ".";
  71
  72         argv[0] = dot;
  73         argv[1] = NULL;
  74         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  75                 err(1, "line %d: fts_open", lineno);
  76         level = root;
  77         specdepth = rval = 0;
  78         while ((p = fts_read(t))) {
  79                 if (check_excludes(p->fts_name, p->fts_path)) {
  80                         fts_set(t, p, FTS_SKIP);
  81                         continue;
  82                 }
  83                 switch(p->fts_info) {
  84                 case FTS_D:
  85                 case FTS_SL:
  86                         break;
  87                 case FTS_DP:
  88                         if (specdepth > p->fts_level) {
  89                                 for (level = level->parent; level->prev;
  90                                       level = level->prev);
  91                                 --specdepth;
  92                         }
  93                         continue;
  94                 case FTS_DNR:
  95                 case FTS_ERR:
  96                 case FTS_NS:
  97                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
  98                         continue;
  99                 default:
 100                         if (dflag)
 101                                 continue;
 102                 }
 103
 104                 if (specdepth != p->fts_level)
 105                         goto extra;
 106                 for (ep = level; ep; ep = ep->next)
 107                         if ((ep->flags & F_MAGIC &&
 108                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 109                             !strcmp(ep->name, p->fts_name)) {
 110                                 ep->flags |= F_VISIT;
 111                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 112                                     compare(ep, p))
 113                                         rval = MISMATCHEXIT;
 114                                 if (ep->flags & F_IGN)
 115                                         fts_set(t, p, FTS_SKIP);
 116                                 else if (ep->child && ep->type == F_DIR &&
 117                                     p->fts_info == FTS_D) {
 118                                         level = ep->child;
 119                                         ++specdepth;
 120                                 }
 121                                 break;
 122                         }
 123
 124                 if (ep)
 125                         continue;
 126 extra:
 127                 if (!eflag) {
 128                         printf("%s extra", RP(p));
 129                         if (rflag) {
 130                                 if ((S_ISDIR(p->fts_statp->st_mode)
 131                                     ? rmdir : unlink)(p->fts_accpath)) {
 132                                         printf(", not removed: %s",
 133                                             strerror(errno));
 134                                 } else
 135                                         printf(", removed");
 136                         }
 137                         putchar('\n');
 138                 }
 139                 fts_set(t, p, FTS_SKIP);
 140         }
 141         fts_close(t);
 142         if (sflag)
 143                 warnx("%s checksum: %lu", fullpath, crc_total);
 144         return (rval);
 145 }
 146
 147 static void
 148 miss(NODE *p, char *tail)
 149 {
 150         int create;
 151         char *tp;
 152         const char *type;
 153
 154         for (; p; p = p->next) {
 155                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 156                         continue;
 157                 strcpy(tail, p->name);
 158                 if (!(p->flags & F_VISIT)) {
 159                         /* Don't print missing message if file exists as a
 160                            symbolic link and the -q flag is set. */
 161                         struct stat statbuf;
 162
 163                         if (qflag && stat(path, &statbuf) == 0)
 164                                 p->flags |= F_VISIT;
 165                         else
 166                                 printf("%s missing", path);
 167                 }
 168                 if (p->type != F_DIR && p->type != F_LINK) {
 169                         putchar('\n');
 170                         continue;
 171                 }
 172
 173                 create = 0;
 174                 if (p->type == F_LINK)
 175                         type = "symlink";
 176                 else
 177                         type = "directory";
 178                 if (!(p->flags & F_VISIT) && uflag) {
 179                         if (!(p->flags & (F_UID | F_UNAME)))
 180                                 printf(" (%s not created: user not specified)", type);
 181                         else if (!(p->flags & (F_GID | F_GNAME)))
 182                                 printf(" (%s not created: group not specified)", type);
 183                         else if (p->type == F_LINK) {
 184                                 if (symlink(p->slink, path))
 185                                         printf(" (symlink not created: %s)\n",
 186                                             strerror(errno));
 187                                 else
 188                                         printf(" (created)\n");
 189                                 if (lchown(path, p->st_uid, p->st_gid))
 190                                         printf("%s: user/group not modified: %s\n",
 191                                             path, strerror(errno));
 192                                 continue;
 193                         } else if (!(p->flags & F_MODE))
 194                             printf(" (directory not created: mode not specified)");
 195                         else if (mkdir(path, S_IRWXU))
 196                                 printf(" (directory not created: %s)",
 197                                     strerror(errno));
 198                         else {
 199                                 create = 1;
 200                                 printf(" (created)");
 201                         }
 202                 }
 203                 if (!(p->flags & F_VISIT))
 204                         putchar('\n');
 205
 206                 for (tp = tail; *tp; ++tp);
 207                 *tp = '/';
 208                 miss(p->child, tp + 1);
 209                 *tp = '\0';
 210
 211                 if (!create)
 212                         continue;
 213                 if (chown(path, p->st_uid, p->st_gid)) {
 214                         printf("%s: user/group/mode not modified: %s\n",
 215                             path, strerror(errno));
 216                         printf("%s: warning: file mode %snot set\n", path,
 217                             (p->flags & F_FLAGS) ? "and file flags " : "");
 218                         continue;
 219                 }
 220                 if (chmod(path, p->st_mode))
 221                         printf("%s: permissions not set: %s\n",
 222                             path, strerror(errno));
 223                 if ((p->flags & F_FLAGS) && p->st_flags &&
 224                     chflags(path, p->st_flags))
 225                         printf("%s: file flags not set: %s\n",
 226                             path, strerror(errno));
 227         }
 228 }