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 extern long int crc_total;
  51 extern int ftsoptions;
  52 extern int dflag, eflag, qflag, rflag, sflag, uflag;
  53 extern char fullpath[MAXPATHLEN];
  54 extern int lineno;
  55
  56 static NODE *root;
  57 static char path[MAXPATHLEN];
  58
  59 static void     miss(NODE *, char *);
  60 static int      vwalk(void);
  61
  62 int
  63 verify(void)
  64 {
  65         int rval;
  66
  67         root = spec();
  68         rval = vwalk();
  69         miss(root, path);
  70         return (rval);
  71 }
  72
  73 static int
  74 vwalk(void)
  75 {
  76         FTS *t;
  77         FTSENT *p;
  78         NODE *ep, *level;
  79         int specdepth, rval;
  80         char *argv[2];
  81
  82         argv[0] = ".";
  83         argv[1] = NULL;
  84         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  85                 err(1, "line %d: fts_open", lineno);
  86         level = root;
  87         specdepth = rval = 0;
  88         while ((p = fts_read(t))) {
  89                 if (check_excludes(p->fts_name, p->fts_path)) {
  90                         fts_set(t, p, FTS_SKIP);
  91                         continue;
  92                 }
  93                 switch(p->fts_info) {
  94                 case FTS_D:
  95                 case FTS_SL:
  96                         break;
  97                 case FTS_DP:
  98                         if (specdepth > p->fts_level) {
  99                                 for (level = level->parent; level->prev;
 100                                       level = level->prev);
 101                                 --specdepth;
 102                         }
 103                         continue;
 104                 case FTS_DNR:
 105                 case FTS_ERR:
 106                 case FTS_NS:
 107                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 108                         continue;
 109                 default:
 110                         if (dflag)
 111                                 continue;
 112                 }
 113
 114                 if (specdepth != p->fts_level)
 115                         goto extra;
 116                 for (ep = level; ep; ep = ep->next)
 117                         if ((ep->flags & F_MAGIC &&
 118                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 119                             !strcmp(ep->name, p->fts_name)) {
 120                                 ep->flags |= F_VISIT;
 121                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 122                                     compare(ep->name, ep, p))
 123                                         rval = MISMATCHEXIT;
 124                                 if (ep->flags & F_IGN)
 125                                         fts_set(t, p, FTS_SKIP);
 126                                 else if (ep->child && ep->type == F_DIR &&
 127                                     p->fts_info == FTS_D) {
 128                                         level = ep->child;
 129                                         ++specdepth;
 130                                 }
 131                                 break;
 132                         }
 133
 134                 if (ep)
 135                         continue;
 136 extra:
 137                 if (!eflag) {
 138                         printf("%s extra", RP(p));
 139                         if (rflag) {
 140                                 if ((S_ISDIR(p->fts_statp->st_mode)
 141                                     ? rmdir : unlink)(p->fts_accpath)) {
 142                                         printf(", not removed: %s",
 143                                             strerror(errno));
 144                                 } else
 145                                         printf(", removed");
 146                         }
 147                         putchar('\n');
 148                 }
 149                 fts_set(t, p, FTS_SKIP);
 150         }
 151         fts_close(t);
 152         if (sflag)
 153                 warnx("%s checksum: %lu", fullpath, crc_total);
 154         return (rval);
 155 }
 156
 157 static void
 158 miss(NODE *p, char *tail)
 159 {
 160         int create;
 161         char *tp;
 162         const char *type;
 163
 164         for (; p; p = p->next) {
 165                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 166                         continue;
 167                 strcpy(tail, p->name);
 168                 if (!(p->flags & F_VISIT)) {
 169                         /* Don't print missing message if file exists as a
 170                            symbolic link and the -q flag is set. */
 171                         struct stat statbuf;
 172
 173                         if (qflag && stat(path, &statbuf) == 0)
 174                                 p->flags |= F_VISIT;
 175                         else
 176                                 printf("%s missing", path);
 177                 }
 178                 if (p->type != F_DIR && p->type != F_LINK) {
 179                         putchar('\n');
 180                         continue;
 181                 }
 182
 183                 create = 0;
 184                 if (p->type == F_LINK)
 185                         type = "symlink";
 186                 else
 187                         type = "directory";
 188                 if (!(p->flags & F_VISIT) && uflag) {
 189                         if (!(p->flags & (F_UID | F_UNAME)))
 190                                 printf(" (%s not created: user not specified)", type);
 191                         else if (!(p->flags & (F_GID | F_GNAME)))
 192                                 printf(" (%s not created: group not specified)", type);
 193                         else if (p->type == F_LINK) {
 194                                 if (symlink(p->slink, path))
 195                                         printf(" (symlink not created: %s)\n",
 196                                             strerror(errno));
 197                                 else
 198                                         printf(" (created)\n");
 199                                 if (lchown(path, p->st_uid, p->st_gid))
 200                                         printf("%s: user/group not modified: %s\n",
 201                                             path, strerror(errno));
 202                                 continue;
 203                         } else if (!(p->flags & F_MODE))
 204                             printf(" (directory not created: mode not specified)");
 205                         else if (mkdir(path, S_IRWXU))
 206                                 printf(" (directory not created: %s)",
 207                                     strerror(errno));
 208                         else {
 209                                 create = 1;
 210                                 printf(" (created)");
 211                         }
 212                 }
 213                 if (!(p->flags & F_VISIT))
 214                         putchar('\n');
 215
 216                 for (tp = tail; *tp; ++tp);
 217                 *tp = '/';
 218                 miss(p->child, tp + 1);
 219                 *tp = '\0';
 220
 221                 if (!create)
 222                         continue;
 223                 if (chown(path, p->st_uid, p->st_gid)) {
 224                         printf("%s: user/group/mode not modified: %s\n",
 225                             path, strerror(errno));
 226                         printf("%s: warning: file mode %snot set\n", path,
 227                             (p->flags & F_FLAGS) ? "and file flags " : "");
 228                         continue;
 229                 }
 230                 if (chmod(path, p->st_mode))
 231                         printf("%s: permissions not set: %s\n",
 232                             path, strerror(errno));
 233                 if ((p->flags & F_FLAGS) && p->st_flags &&
 234                     chflags(path, p->st_flags))
 235                         printf("%s: file flags not set: %s\n",
 236                             path, strerror(errno));
 237         }
 238 }