usr.sbin/mtree/verify.c

   1 /*      @(#)verify.c    8.1 (Berkeley) 6/6/93   */
   2 /*      $NetBSD: verify.c,v 1.46 2015/01/23 20:28:24 christos Exp $     */
   3
   4 /*-
   5  * Copyright (c) 1990, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #if HAVE_NBTOOL_CONFIG_H
  34 #include "nbtool_config.h"
  35 #endif
  36
  37 #include <sys/param.h>
  38 #include <sys/stat.h>
  39
  40 #if ! HAVE_NBTOOL_CONFIG_H
  41 #include <dirent.h>
  42 #endif
  43
  44 #include <errno.h>
  45 #include <fnmatch.h>
  46 #include <stdio.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49
  50 #include "extern.h"
  51
  52 static NODE *root;
  53 static char path[MAXPATHLEN];
  54
  55 static void     miss(NODE *, char *);
  56 static int      vwalk(void);
  57
  58 int
  59 verify(FILE *fi)
  60 {
  61         int rval;
  62
  63         root = spec(fi);
  64         rval = vwalk();
  65         miss(root, path);
  66         return (rval);
  67 }
  68
  69 static int
  70 vwalk(void)
  71 {
  72         FTS *t;
  73         FTSENT *p;
  74         NODE *ep, *level;
  75         int specdepth, rval;
  76         char *argv[2];
  77         char  dot[] = ".";
  78         argv[0] = dot;
  79         argv[1] = NULL;
  80
  81         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  82                 mtree_err("fts_open: %s", strerror(errno));
  83         level = root;
  84         specdepth = rval = 0;
  85         while ((p = fts_read(t)) != NULL) {
  86                 if (check_excludes(p->fts_name, p->fts_path)) {
  87                         fts_set(t, p, FTS_SKIP);
  88                         continue;
  89                 }
  90                 if (!find_only(p->fts_path)) {
  91                         fts_set(t, p, FTS_SKIP);
  92                         continue;
  93                 }
  94                 switch(p->fts_info) {
  95                 case FTS_D:
  96                 case FTS_SL:
  97                         break;
  98                 case FTS_DP:
  99                         if (specdepth > p->fts_level) {
 100                                 for (level = level->parent; level->prev;
 101                                     level = level->prev)
 102                                         continue;
 103                                 --specdepth;
 104                         }
 105                         continue;
 106                 case FTS_DNR:
 107                 case FTS_ERR:
 108                 case FTS_NS:
 109                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 110                         continue;
 111                 default:
 112                         if (dflag)
 113                                 continue;
 114                 }
 115
 116                 if (specdepth != p->fts_level)
 117                         goto extra;
 118                 for (ep = level; ep; ep = ep->next)
 119                         if ((ep->flags & F_MAGIC &&
 120                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 121                             !strcmp(ep->name, p->fts_name)) {
 122                                 ep->flags |= F_VISIT;
 123                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 124                                     compare(ep, p))
 125                                         rval = MISMATCHEXIT;
 126                                 if (!(ep->flags & F_IGN) &&
 127                                     ep->type == F_DIR &&
 128                                     p->fts_info == FTS_D) {
 129                                         if (ep->child) {
 130                                                 level = ep->child;
 131                                                 ++specdepth;
 132                                         }
 133                                 } else
 134                                         fts_set(t, p, FTS_SKIP);
 135                                 break;
 136                         }
 137
 138                 if (ep)
 139                         continue;
 140  extra:
 141                 if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
 142                         printf("extra: %s", RP(p));
 143                         if (rflag) {
 144 #if HAVE_STRUCT_STAT_ST_FLAGS
 145                                 if (rflag > 1 &&
 146                                     lchflags(p->fts_accpath, 0) == -1)
 147                                         printf(" (chflags %s)",
 148                                             strerror(errno));
 149 #endif
 150                                 if ((S_ISDIR(p->fts_statp->st_mode)
 151                                     ? rmdir : unlink)(p->fts_accpath)) {
 152                                         printf(", not removed: %s",
 153                                             strerror(errno));
 154                                 } else
 155                                         printf(", removed");
 156                         }
 157                         putchar('\n');
 158                 }
 159                 fts_set(t, p, FTS_SKIP);
 160         }
 161         fts_close(t);
 162         if (sflag)
 163                 warnx("%s checksum: %u", fullpath, crc_total);
 164         return (rval);
 165 }
 166
 167 static void
 168 miss(NODE *p, char *tail)
 169 {
 170         int create;
 171         char *tp;
 172         const char *type;
 173         u_int32_t flags;
 174
 175         for (; p; p = p->next) {
 176                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 177                         continue;
 178                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 179                         continue;
 180                 strcpy(tail, p->name);
 181                 if (!(p->flags & F_VISIT)) {
 182                         /* Don't print missing message if file exists as a
 183                            symbolic link and the -q flag is set. */
 184                         struct stat statbuf;
 185
 186                         if (qflag && stat(path, &statbuf) == 0 &&
 187                             S_ISDIR(statbuf.st_mode))
 188                                 p->flags |= F_VISIT;
 189                         else
 190                                 (void)printf("%s missing", path);
 191                 }
 192                 switch (p->type) {
 193                 case F_BLOCK:
 194                 case F_CHAR:
 195                         type = "device";
 196                         break;
 197                 case F_DIR:
 198                         type = "directory";
 199                         break;
 200                 case F_LINK:
 201                         type = "symlink";
 202                         break;
 203                 default:
 204                         putchar('\n');
 205                         continue;
 206                 }
 207
 208                 create = 0;
 209                 if (!(p->flags & F_VISIT) && uflag) {
 210                         if (mtree_Wflag || p->type == F_LINK)
 211                                 goto createit;
 212                         if (!(p->flags & (F_UID | F_UNAME)))
 213                             printf(
 214                                 " (%s not created: user not specified)", type);
 215                         else if (!(p->flags & (F_GID | F_GNAME)))
 216                             printf(
 217                                 " (%s not created: group not specified)", type);
 218                         else if (!(p->flags & F_MODE))
 219                             printf(
 220                                 " (%s not created: mode not specified)", type);
 221                         else
 222  createit:
 223                         switch (p->type) {
 224                         case F_BLOCK:
 225                         case F_CHAR:
 226                                 if (mtree_Wflag)
 227                                         continue;
 228                                 if (!(p->flags & F_DEV))
 229                                         printf(
 230                                     " (%s not created: device not specified)",
 231                                             type);
 232                                 else if (mknod(path,
 233                                     p->st_mode | nodetoino(p->type),
 234                                     p->st_rdev) == -1)
 235                                         printf(" (%s not created: %s)\n",
 236                                             type, strerror(errno));
 237                                 else
 238                                         create = 1;
 239                                 break;
 240                         case F_LINK:
 241                                 if (!(p->flags & F_SLINK))
 242                                         printf(
 243                                     " (%s not created: link not specified)\n",
 244                                             type);
 245                                 else if (symlink(p->slink, path))
 246                                         printf(
 247                                             " (%s not created: %s)\n",
 248                                             type, strerror(errno));
 249                                 else
 250                                         create = 1;
 251                                 break;
 252                         case F_DIR:
 253                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 254                                         printf(" (not created: %s)",
 255                                             strerror(errno));
 256                                 else
 257                                         create = 1;
 258                                 break;
 259                         default:
 260                                 mtree_err("can't create create %s",
 261                                     nodetype(p->type));
 262                         }
 263                 }
 264                 if (create)
 265                         printf(" (created)");
 266                 if (p->type == F_DIR) {
 267                         if (!(p->flags & F_VISIT))
 268                                 putchar('\n');
 269                         for (tp = tail; *tp; ++tp)
 270                                 continue;
 271                         *tp = '/';
 272                         miss(p->child, tp + 1);
 273                         *tp = '\0';
 274                 } else
 275                         putchar('\n');
 276
 277                 if (!create || mtree_Wflag)
 278                         continue;
 279                 if ((p->flags & (F_UID | F_UNAME)) &&
 280                     (p->flags & (F_GID | F_GNAME)) &&
 281                     (lchown(path, p->st_uid, p->st_gid))) {
 282                         printf("%s: user/group/mode not modified: %s\n",
 283                             path, strerror(errno));
 284                         printf("%s: warning: file mode %snot set\n", path,
 285                             (p->flags & F_FLAGS) ? "and file flags " : "");
 286                         continue;
 287                 }
 288                 if (p->flags & F_MODE) {
 289                         if (lchmod(path, p->st_mode))
 290                                 printf("%s: permissions not set: %s\n",
 291                                     path, strerror(errno));
 292                 }
 293 #if HAVE_STRUCT_STAT_ST_FLAGS
 294                 if ((p->flags & F_FLAGS) && p->st_flags) {
 295                         if (iflag)
 296                                 flags = p->st_flags;
 297                         else
 298                                 flags = p->st_flags & ~SP_FLGS;
 299                         if (lchflags(path, flags))
 300                                 printf("%s: file flags not set: %s\n",
 301                                     path, strerror(errno));
 302                 }
 303 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 304         }
 305 }