usr.sbin/mtree/verify.c

   1 /*      $NetBSD: verify.c,v 1.43 2012/10/05 01:31:05 christos Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1990, 1993
   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. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #if HAVE_NBTOOL_CONFIG_H
  33 #include "nbtool_config.h"
  34 #endif
  35
  36 #include <sys/cdefs.h>
  37 #if defined(__RCSID) && !defined(lint)
  38 #if 0
  39 static char sccsid[] = "@(#)verify.c    8.1 (Berkeley) 6/6/93";
  40 #else
  41 __RCSID("$NetBSD: verify.c,v 1.43 2012/10/05 01:31:05 christos Exp $");
  42 #endif
  43 #endif /* not lint */
  44
  45 #include <sys/param.h>
  46 #include <sys/stat.h>
  47
  48 #if ! HAVE_NBTOOL_CONFIG_H
  49 #include <dirent.h>
  50 #endif
  51
  52 #include <errno.h>
  53 #include <fnmatch.h>
  54 #include <stdio.h>
  55 #include <string.h>
  56 #include <unistd.h>
  57
  58 #include "extern.h"
  59
  60 static NODE *root;
  61 static char path[MAXPATHLEN];
  62
  63 static void     miss(NODE *, char *);
  64 static int      vwalk(void);
  65
  66 int
  67 verify(FILE *fi)
  68 {
  69         int rval;
  70
  71         root = spec(fi);
  72         rval = vwalk();
  73         miss(root, path);
  74         return (rval);
  75 }
  76
  77 static int
  78 vwalk(void)
  79 {
  80         FTS *t;
  81         FTSENT *p;
  82         NODE *ep, *level;
  83         int specdepth, rval;
  84         char *argv[2];
  85         char  dot[] = ".";
  86         argv[0] = dot;
  87         argv[1] = NULL;
  88
  89         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  90                 mtree_err("fts_open: %s", strerror(errno));
  91         level = root;
  92         specdepth = rval = 0;
  93         while ((p = fts_read(t)) != NULL) {
  94                 if (check_excludes(p->fts_name, p->fts_path)) {
  95                         fts_set(t, p, FTS_SKIP);
  96                         continue;
  97                 }
  98                 switch(p->fts_info) {
  99                 case FTS_D:
 100                 case FTS_SL:
 101                         break;
 102                 case FTS_DP:
 103                         if (specdepth > p->fts_level) {
 104                                 for (level = level->parent; level->prev;
 105                                     level = level->prev)
 106                                         continue;
 107                                 --specdepth;
 108                         }
 109                         continue;
 110                 case FTS_DNR:
 111                 case FTS_ERR:
 112                 case FTS_NS:
 113                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 114                         continue;
 115                 default:
 116                         if (dflag)
 117                                 continue;
 118                 }
 119
 120                 if (specdepth != p->fts_level)
 121                         goto extra;
 122                 for (ep = level; ep; ep = ep->next)
 123                         if ((ep->flags & F_MAGIC &&
 124                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 125                             !strcmp(ep->name, p->fts_name)) {
 126                                 ep->flags |= F_VISIT;
 127                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 128                                     compare(ep, p))
 129                                         rval = MISMATCHEXIT;
 130                                 if (!(ep->flags & F_IGN) &&
 131                                     ep->type == F_DIR &&
 132                                     p->fts_info == FTS_D) {
 133                                         if (ep->child) {
 134                                                 level = ep->child;
 135                                                 ++specdepth;
 136                                         }
 137                                 } else
 138                                         fts_set(t, p, FTS_SKIP);
 139                                 break;
 140                         }
 141
 142                 if (ep)
 143                         continue;
 144  extra:
 145                 if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
 146                         printf("extra: %s", RP(p));
 147                         if (rflag) {
 148                                 if ((S_ISDIR(p->fts_statp->st_mode)
 149                                     ? rmdir : unlink)(p->fts_accpath)) {
 150                                         printf(", not removed: %s",
 151                                             strerror(errno));
 152                                 } else
 153                                         printf(", removed");
 154                         }
 155                         putchar('\n');
 156                 }
 157                 fts_set(t, p, FTS_SKIP);
 158         }
 159         fts_close(t);
 160         if (sflag)
 161                 warnx("%s checksum: %u", fullpath, crc_total);
 162         return (rval);
 163 }
 164
 165 static void
 166 miss(NODE *p, char *tail)
 167 {
 168         int create;
 169         char *tp;
 170         const char *type;
 171         u_int32_t flags;
 172
 173         for (; p; p = p->next) {
 174                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 175                         continue;
 176                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 177                         continue;
 178                 strcpy(tail, p->name);
 179                 if (!(p->flags & F_VISIT)) {
 180                         /* Don't print missing message if file exists as a
 181                            symbolic link and the -q flag is set. */
 182                         struct stat statbuf;
 183
 184                         if (qflag && stat(path, &statbuf) == 0 &&
 185                             S_ISDIR(statbuf.st_mode))
 186                                 p->flags |= F_VISIT;
 187                         else
 188                                 (void)printf("%s missing", path);
 189                 }
 190                 switch (p->type) {
 191                 case F_BLOCK:
 192                 case F_CHAR:
 193                         type = "device";
 194                         break;
 195                 case F_DIR:
 196                         type = "directory";
 197                         break;
 198                 case F_LINK:
 199                         type = "symlink";
 200                         break;
 201                 default:
 202                         putchar('\n');
 203                         continue;
 204                 }
 205
 206                 create = 0;
 207                 if (!(p->flags & F_VISIT) && uflag) {
 208                         if (mtree_Wflag || p->type == F_LINK)
 209                                 goto createit;
 210                         if (!(p->flags & (F_UID | F_UNAME)))
 211                             printf(
 212                                 " (%s not created: user not specified)", type);
 213                         else if (!(p->flags & (F_GID | F_GNAME)))
 214                             printf(
 215                                 " (%s not created: group not specified)", type);
 216                         else if (!(p->flags & F_MODE))
 217                             printf(
 218                                 " (%s not created: mode not specified)", type);
 219                         else
 220  createit:
 221                         switch (p->type) {
 222                         case F_BLOCK:
 223                         case F_CHAR:
 224                                 if (mtree_Wflag)
 225                                         continue;
 226                                 if (!(p->flags & F_DEV))
 227                                         printf(
 228                                     " (%s not created: device not specified)",
 229                                             type);
 230                                 else if (mknod(path,
 231                                     p->st_mode | nodetoino(p->type),
 232                                     p->st_rdev) == -1)
 233                                         printf(" (%s not created: %s)\n",
 234                                             type, strerror(errno));
 235                                 else
 236                                         create = 1;
 237                                 break;
 238                         case F_LINK:
 239                                 if (!(p->flags & F_SLINK))
 240                                         printf(
 241                                     " (%s not created: link not specified)\n",
 242                                             type);
 243                                 else if (symlink(p->slink, path))
 244                                         printf(
 245                                             " (%s not created: %s)\n",
 246                                             type, strerror(errno));
 247                                 else
 248                                         create = 1;
 249                                 break;
 250                         case F_DIR:
 251                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 252                                         printf(" (not created: %s)",
 253                                             strerror(errno));
 254                                 else
 255                                         create = 1;
 256                                 break;
 257                         default:
 258                                 mtree_err("can't create create %s",
 259                                     nodetype(p->type));
 260                         }
 261                 }
 262                 if (create)
 263                         printf(" (created)");
 264                 if (p->type == F_DIR) {
 265                         if (!(p->flags & F_VISIT))
 266                                 putchar('\n');
 267                         for (tp = tail; *tp; ++tp)
 268                                 continue;
 269                         *tp = '/';
 270                         miss(p->child, tp + 1);
 271                         *tp = '\0';
 272                 } else
 273                         putchar('\n');
 274
 275                 if (!create || mtree_Wflag)
 276                         continue;
 277                 if ((p->flags & (F_UID | F_UNAME)) &&
 278                     (p->flags & (F_GID | F_GNAME)) &&
 279                     (lchown(path, p->st_uid, p->st_gid))) {
 280                         printf("%s: user/group/mode not modified: %s\n",
 281                             path, strerror(errno));
 282                         printf("%s: warning: file mode %snot set\n", path,
 283                             (p->flags & F_FLAGS) ? "and file flags " : "");
 284                         continue;
 285                 }
 286                 if (p->flags & F_MODE) {
 287                         if (lchmod(path, p->st_mode))
 288                                 printf("%s: permissions not set: %s\n",
 289                                     path, strerror(errno));
 290                 }
 291 #if HAVE_STRUCT_STAT_ST_FLAGS
 292                 if ((p->flags & F_FLAGS) && p->st_flags) {
 293                         if (iflag)
 294                                 flags = p->st_flags;
 295                         else
 296                                 flags = p->st_flags & ~SP_FLGS;
 297                         if (lchflags(path, flags))
 298                                 printf("%s: file flags not set: %s\n",
 299                                     path, strerror(errno));
 300                 }
 301 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 302         }
 303 }