usr.sbin/mtree/verify.c

   1 /*      $NetBSD: verify.c,v 1.46 2015/01/23 20:28:24 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 1.46 2015/01/23 20:28:24 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                 if (!find_only(p->fts_path)) {
  99                         fts_set(t, p, FTS_SKIP);
 100                         continue;
 101                 }
 102                 switch(p->fts_info) {
 103                 case FTS_D:
 104                 case FTS_SL:
 105                         break;
 106                 case FTS_DP:
 107                         if (specdepth > p->fts_level) {
 108                                 for (level = level->parent; level->prev;
 109                                     level = level->prev)
 110                                         continue;
 111                                 --specdepth;
 112                         }
 113                         continue;
 114                 case FTS_DNR:
 115                 case FTS_ERR:
 116                 case FTS_NS:
 117                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 118                         continue;
 119                 default:
 120                         if (dflag)
 121                                 continue;
 122                 }
 123
 124                 if (specdepth != p->fts_level)
 125                         goto extra;
 126                 for (ep = level; ep; ep = ep->next)
 127                         if ((ep->flags & F_MAGIC &&
 128                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 129                             !strcmp(ep->name, p->fts_name)) {
 130                                 ep->flags |= F_VISIT;
 131                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 132                                     compare(ep, p))
 133                                         rval = MISMATCHEXIT;
 134                                 if (!(ep->flags & F_IGN) &&
 135                                     ep->type == F_DIR &&
 136                                     p->fts_info == FTS_D) {
 137                                         if (ep->child) {
 138                                                 level = ep->child;
 139                                                 ++specdepth;
 140                                         }
 141                                 } else
 142                                         fts_set(t, p, FTS_SKIP);
 143                                 break;
 144                         }
 145
 146                 if (ep)
 147                         continue;
 148  extra:
 149                 if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
 150                         printf("extra: %s", RP(p));
 151                         if (rflag) {
 152 #if HAVE_STRUCT_STAT_ST_FLAGS
 153                                 if (rflag > 1 &&
 154                                     lchflags(p->fts_accpath, 0) == -1)
 155                                         printf(" (chflags %s)",
 156                                             strerror(errno));
 157 #endif
 158                                 if ((S_ISDIR(p->fts_statp->st_mode)
 159                                     ? rmdir : unlink)(p->fts_accpath)) {
 160                                         printf(", not removed: %s",
 161                                             strerror(errno));
 162                                 } else
 163                                         printf(", removed");
 164                         }
 165                         putchar('\n');
 166                 }
 167                 fts_set(t, p, FTS_SKIP);
 168         }
 169         fts_close(t);
 170         if (sflag)
 171                 warnx("%s checksum: %u", fullpath, crc_total);
 172         return (rval);
 173 }
 174
 175 static void
 176 miss(NODE *p, char *tail)
 177 {
 178         int create;
 179         char *tp;
 180         const char *type;
 181         u_int32_t flags;
 182
 183         for (; p; p = p->next) {
 184                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 185                         continue;
 186                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 187                         continue;
 188                 strcpy(tail, p->name);
 189                 if (!(p->flags & F_VISIT)) {
 190                         /* Don't print missing message if file exists as a
 191                            symbolic link and the -q flag is set. */
 192                         struct stat statbuf;
 193
 194                         if (qflag && stat(path, &statbuf) == 0 &&
 195                             S_ISDIR(statbuf.st_mode))
 196                                 p->flags |= F_VISIT;
 197                         else
 198                                 (void)printf("%s missing", path);
 199                 }
 200                 switch (p->type) {
 201                 case F_BLOCK:
 202                 case F_CHAR:
 203                         type = "device";
 204                         break;
 205                 case F_DIR:
 206                         type = "directory";
 207                         break;
 208                 case F_LINK:
 209                         type = "symlink";
 210                         break;
 211                 default:
 212                         putchar('\n');
 213                         continue;
 214                 }
 215
 216                 create = 0;
 217                 if (!(p->flags & F_VISIT) && uflag) {
 218                         if (mtree_Wflag || p->type == F_LINK)
 219                                 goto createit;
 220                         if (!(p->flags & (F_UID | F_UNAME)))
 221                             printf(
 222                                 " (%s not created: user not specified)", type);
 223                         else if (!(p->flags & (F_GID | F_GNAME)))
 224                             printf(
 225                                 " (%s not created: group not specified)", type);
 226                         else if (!(p->flags & F_MODE))
 227                             printf(
 228                                 " (%s not created: mode not specified)", type);
 229                         else
 230  createit:
 231                         switch (p->type) {
 232                         case F_BLOCK:
 233                         case F_CHAR:
 234                                 if (mtree_Wflag)
 235                                         continue;
 236                                 if (!(p->flags & F_DEV))
 237                                         printf(
 238                                     " (%s not created: device not specified)",
 239                                             type);
 240                                 else if (mknod(path,
 241                                     p->st_mode | nodetoino(p->type),
 242                                     p->st_rdev) == -1)
 243                                         printf(" (%s not created: %s)\n",
 244                                             type, strerror(errno));
 245                                 else
 246                                         create = 1;
 247                                 break;
 248                         case F_LINK:
 249                                 if (!(p->flags & F_SLINK))
 250                                         printf(
 251                                     " (%s not created: link not specified)\n",
 252                                             type);
 253                                 else if (symlink(p->slink, path))
 254                                         printf(
 255                                             " (%s not created: %s)\n",
 256                                             type, strerror(errno));
 257                                 else
 258                                         create = 1;
 259                                 break;
 260                         case F_DIR:
 261                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 262                                         printf(" (not created: %s)",
 263                                             strerror(errno));
 264                                 else
 265                                         create = 1;
 266                                 break;
 267                         default:
 268                                 mtree_err("can't create create %s",
 269                                     nodetype(p->type));
 270                         }
 271                 }
 272                 if (create)
 273                         printf(" (created)");
 274                 if (p->type == F_DIR) {
 275                         if (!(p->flags & F_VISIT))
 276                                 putchar('\n');
 277                         for (tp = tail; *tp; ++tp)
 278                                 continue;
 279                         *tp = '/';
 280                         miss(p->child, tp + 1);
 281                         *tp = '\0';
 282                 } else
 283                         putchar('\n');
 284
 285                 if (!create || mtree_Wflag)
 286                         continue;
 287                 if ((p->flags & (F_UID | F_UNAME)) &&
 288                     (p->flags & (F_GID | F_GNAME)) &&
 289                     (lchown(path, p->st_uid, p->st_gid))) {
 290                         printf("%s: user/group/mode not modified: %s\n",
 291                             path, strerror(errno));
 292                         printf("%s: warning: file mode %snot set\n", path,
 293                             (p->flags & F_FLAGS) ? "and file flags " : "");
 294                         continue;
 295                 }
 296                 if (p->flags & F_MODE) {
 297                         if (lchmod(path, p->st_mode))
 298                                 printf("%s: permissions not set: %s\n",
 299                                     path, strerror(errno));
 300                 }
 301 #if HAVE_STRUCT_STAT_ST_FLAGS
 302                 if ((p->flags & F_FLAGS) && p->st_flags) {
 303                         if (iflag)
 304                                 flags = p->st_flags;
 305                         else
 306                                 flags = p->st_flags & ~SP_FLGS;
 307                         if (lchflags(path, flags))
 308                                 printf("%s: file flags not set: %s\n",
 309                                     path, strerror(errno));
 310                 }
 311 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 312         }
 313 }