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 #include <sys/param.h>
  34 #include <sys/stat.h>
  35
  36 #include <dirent.h>
  37 #include <errno.h>
  38 #include <fnmatch.h>
  39 #include <stdio.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42
  43 #include "extern.h"
  44
  45 static NODE *root;
  46 static char path[MAXPATHLEN];
  47
  48 static void     miss(NODE *, char *);
  49 static int      vwalk(void);
  50
  51 int
  52 verify(FILE *fi)
  53 {
  54         int rval;
  55
  56         root = spec(fi);
  57         rval = vwalk();
  58         miss(root, path);
  59         return (rval);
  60 }
  61
  62 static int
  63 vwalk(void)
  64 {
  65         FTS *t;
  66         FTSENT *p;
  67         NODE *ep, *level;
  68         int specdepth, rval;
  69         char *argv[2];
  70         char  dot[] = ".";
  71         argv[0] = dot;
  72         argv[1] = NULL;
  73
  74         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  75                 mtree_err("fts_open: %s", strerror(errno));
  76         level = root;
  77         specdepth = rval = 0;
  78         while ((p = fts_read(t)) != NULL) {
  79                 if (check_excludes(p->fts_name, p->fts_path)) {
  80                         fts_set(t, p, FTS_SKIP);
  81                         continue;
  82                 }
  83                 if (!find_only(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                                         continue;
  96                                 --specdepth;
  97                         }
  98                         continue;
  99                 case FTS_DNR:
 100                 case FTS_ERR:
 101                 case FTS_NS:
 102                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 103                         continue;
 104                 default:
 105                         if (dflag)
 106                                 continue;
 107                 }
 108
 109                 if (specdepth != p->fts_level)
 110                         goto extra;
 111                 for (ep = level; ep; ep = ep->next)
 112                         if ((ep->flags & F_MAGIC &&
 113                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 114                             !strcmp(ep->name, p->fts_name)) {
 115                                 ep->flags |= F_VISIT;
 116                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 117                                     compare(ep, p))
 118                                         rval = MISMATCHEXIT;
 119                                 if (!(ep->flags & F_IGN) &&
 120                                     ep->type == F_DIR &&
 121                                     p->fts_info == FTS_D) {
 122                                         if (ep->child) {
 123                                                 level = ep->child;
 124                                                 ++specdepth;
 125                                         }
 126                                 } else
 127                                         fts_set(t, p, FTS_SKIP);
 128                                 break;
 129                         }
 130
 131                 if (ep)
 132                         continue;
 133  extra:
 134                 if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
 135                         printf("extra: %s", RP(p));
 136                         if (rflag) {
 137 #if HAVE_STRUCT_STAT_ST_FLAGS
 138                                 if (rflag > 1 &&
 139                                     lchflags(p->fts_accpath, 0) == -1)
 140                                         printf(" (chflags %s)",
 141                                             strerror(errno));
 142 #endif
 143                                 if ((S_ISDIR(p->fts_statp->st_mode)
 144                                     ? rmdir : unlink)(p->fts_accpath)) {
 145                                         printf(", not removed: %s",
 146                                             strerror(errno));
 147                                 } else
 148                                         printf(", removed");
 149                         }
 150                         putchar('\n');
 151                 }
 152                 fts_set(t, p, FTS_SKIP);
 153         }
 154         fts_close(t);
 155         if (sflag)
 156                 warnx("%s checksum: %u", fullpath, crc_total);
 157         return (rval);
 158 }
 159
 160 static void
 161 miss(NODE *p, char *tail)
 162 {
 163         int create;
 164         char *tp;
 165         const char *type;
 166         u_int32_t flags;
 167
 168         for (; p; p = p->next) {
 169                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 170                         continue;
 171                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 172                         continue;
 173                 strcpy(tail, p->name);
 174                 if (!(p->flags & F_VISIT)) {
 175                         /* Don't print missing message if file exists as a
 176                            symbolic link and the -q flag is set. */
 177                         struct stat statbuf;
 178
 179                         if (qflag && stat(path, &statbuf) == 0 &&
 180                             S_ISDIR(statbuf.st_mode))
 181                                 p->flags |= F_VISIT;
 182                         else
 183                                 (void)printf("%s missing", path);
 184                 }
 185                 switch (p->type) {
 186                 case F_BLOCK:
 187                 case F_CHAR:
 188                         type = "device";
 189                         break;
 190                 case F_DIR:
 191                         type = "directory";
 192                         break;
 193                 case F_LINK:
 194                         type = "symlink";
 195                         break;
 196                 default:
 197                         putchar('\n');
 198                         continue;
 199                 }
 200
 201                 create = 0;
 202                 if (!(p->flags & F_VISIT) && uflag) {
 203                         if (mtree_Wflag || p->type == F_LINK)
 204                                 goto createit;
 205                         if (!(p->flags & (F_UID | F_UNAME)))
 206                             printf(
 207                                 " (%s not created: user not specified)", type);
 208                         else if (!(p->flags & (F_GID | F_GNAME)))
 209                             printf(
 210                                 " (%s not created: group not specified)", type);
 211                         else if (!(p->flags & F_MODE))
 212                             printf(
 213                                 " (%s not created: mode not specified)", type);
 214                         else
 215  createit:
 216                         switch (p->type) {
 217                         case F_BLOCK:
 218                         case F_CHAR:
 219                                 if (mtree_Wflag)
 220                                         continue;
 221                                 if (!(p->flags & F_DEV))
 222                                         printf(
 223                                     " (%s not created: device not specified)",
 224                                             type);
 225                                 else if (mknod(path,
 226                                     p->st_mode | nodetoino(p->type),
 227                                     p->st_rdev) == -1)
 228                                         printf(" (%s not created: %s)\n",
 229                                             type, strerror(errno));
 230                                 else
 231                                         create = 1;
 232                                 break;
 233                         case F_LINK:
 234                                 if (!(p->flags & F_SLINK))
 235                                         printf(
 236                                     " (%s not created: link not specified)\n",
 237                                             type);
 238                                 else if (symlink(p->slink, path))
 239                                         printf(
 240                                             " (%s not created: %s)\n",
 241                                             type, strerror(errno));
 242                                 else
 243                                         create = 1;
 244                                 break;
 245                         case F_DIR:
 246                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 247                                         printf(" (not created: %s)",
 248                                             strerror(errno));
 249                                 else
 250                                         create = 1;
 251                                 break;
 252                         default:
 253                                 mtree_err("can't create create %s",
 254                                     nodetype(p->type));
 255                         }
 256                 }
 257                 if (create)
 258                         printf(" (created)");
 259                 if (p->type == F_DIR) {
 260                         if (!(p->flags & F_VISIT))
 261                                 putchar('\n');
 262                         for (tp = tail; *tp; ++tp)
 263                                 continue;
 264                         *tp = '/';
 265                         miss(p->child, tp + 1);
 266                         *tp = '\0';
 267                 } else
 268                         putchar('\n');
 269
 270                 if (!create || mtree_Wflag)
 271                         continue;
 272                 if ((p->flags & (F_UID | F_UNAME)) &&
 273                     (p->flags & (F_GID | F_GNAME)) &&
 274                     (lchown(path, p->st_uid, p->st_gid))) {
 275                         printf("%s: user/group/mode not modified: %s\n",
 276                             path, strerror(errno));
 277                         printf("%s: warning: file mode %snot set\n", path,
 278                             (p->flags & F_FLAGS) ? "and file flags " : "");
 279                         continue;
 280                 }
 281                 if (p->flags & F_MODE) {
 282                         if (lchmod(path, p->st_mode))
 283                                 printf("%s: permissions not set: %s\n",
 284                                     path, strerror(errno));
 285                 }
 286 #if HAVE_STRUCT_STAT_ST_FLAGS
 287                 if ((p->flags & F_FLAGS) && p->st_flags) {
 288                         if (iflag)
 289                                 flags = p->st_flags;
 290                         else
 291                                 flags = p->st_flags & ~SP_FLGS;
 292                         if (lchflags(path, flags))
 293                                 printf("%s: file flags not set: %s\n",
 294                                     path, strerror(errno));
 295                 }
 296 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 297         }
 298 }