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 #if HAVE_STRUCT_STAT_ST_FLAGS
 167         u_int32_t flags;
 168 #endif
 169
 170         for (; p; p = p->next) {
 171                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 172                         continue;
 173                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 174                         continue;
 175                 strcpy(tail, p->name);
 176                 if (!(p->flags & F_VISIT)) {
 177                         /* Don't print missing message if file exists as a
 178                            symbolic link and the -q flag is set. */
 179                         struct stat statbuf;
 180
 181                         if (qflag && stat(path, &statbuf) == 0 &&
 182                             S_ISDIR(statbuf.st_mode))
 183                                 p->flags |= F_VISIT;
 184                         else
 185                                 (void)printf("%s missing", path);
 186                 }
 187                 switch (p->type) {
 188                 case F_BLOCK:
 189                 case F_CHAR:
 190                         type = "device";
 191                         break;
 192                 case F_DIR:
 193                         type = "directory";
 194                         break;
 195                 case F_LINK:
 196                         type = "symlink";
 197                         break;
 198                 default:
 199                         putchar('\n');
 200                         continue;
 201                 }
 202
 203                 create = 0;
 204                 if (!(p->flags & F_VISIT) && uflag) {
 205                         if (mtree_Wflag || p->type == F_LINK)
 206                                 goto createit;
 207                         if (!(p->flags & (F_UID | F_UNAME)))
 208                             printf(
 209                                 " (%s not created: user not specified)", type);
 210                         else if (!(p->flags & (F_GID | F_GNAME)))
 211                             printf(
 212                                 " (%s not created: group not specified)", type);
 213                         else if (!(p->flags & F_MODE))
 214                             printf(
 215                                 " (%s not created: mode not specified)", type);
 216                         else
 217  createit:
 218                         switch (p->type) {
 219                         case F_BLOCK:
 220                         case F_CHAR:
 221                                 if (mtree_Wflag)
 222                                         continue;
 223                                 if (!(p->flags & F_DEV))
 224                                         printf(
 225                                     " (%s not created: device not specified)",
 226                                             type);
 227                                 else if (mknod(path,
 228                                     p->st_mode | nodetoino(p->type),
 229                                     p->st_rdev) == -1)
 230                                         printf(" (%s not created: %s)\n",
 231                                             type, strerror(errno));
 232                                 else
 233                                         create = 1;
 234                                 break;
 235                         case F_LINK:
 236                                 if (!(p->flags & F_SLINK))
 237                                         printf(
 238                                     " (%s not created: link not specified)\n",
 239                                             type);
 240                                 else if (symlink(p->slink, path))
 241                                         printf(
 242                                             " (%s not created: %s)\n",
 243                                             type, strerror(errno));
 244                                 else
 245                                         create = 1;
 246                                 break;
 247                         case F_DIR:
 248                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 249                                         printf(" (not created: %s)",
 250                                             strerror(errno));
 251                                 else
 252                                         create = 1;
 253                                 break;
 254                         default:
 255                                 mtree_err("can't create create %s",
 256                                     nodetype(p->type));
 257                         }
 258                 }
 259                 if (create)
 260                         printf(" (created)");
 261                 if (p->type == F_DIR) {
 262                         if (!(p->flags & F_VISIT))
 263                                 putchar('\n');
 264                         for (tp = tail; *tp; ++tp)
 265                                 continue;
 266                         *tp = '/';
 267                         miss(p->child, tp + 1);
 268                         *tp = '\0';
 269                 } else
 270                         putchar('\n');
 271
 272                 if (!create || mtree_Wflag)
 273                         continue;
 274                 if ((p->flags & (F_UID | F_UNAME)) &&
 275                     (p->flags & (F_GID | F_GNAME)) &&
 276                     (lchown(path, p->st_uid, p->st_gid))) {
 277                         printf("%s: user/group/mode not modified: %s\n",
 278                             path, strerror(errno));
 279                         printf("%s: warning: file mode %snot set\n", path,
 280                             (p->flags & F_FLAGS) ? "and file flags " : "");
 281                         continue;
 282                 }
 283                 if (p->flags & F_MODE) {
 284                         if (lchmod(path, p->st_mode))
 285                                 printf("%s: permissions not set: %s\n",
 286                                     path, strerror(errno));
 287                 }
 288 #if HAVE_STRUCT_STAT_ST_FLAGS
 289                 if ((p->flags & F_FLAGS) && p->st_flags) {
 290                         if (iflag)
 291                                 flags = p->st_flags;
 292                         else
 293                                 flags = p->st_flags & ~SP_FLGS;
 294                         if (lchflags(path, flags))
 295                                 printf("%s: file flags not set: %s\n",
 296                                     path, strerror(errno));
 297                 }
 298 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 299         }
 300 }