usr.sbin/mtree/verify.c

   1 /*      $NetBSD: verify.c,v 1.40 2012/03/25 16:07:04 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 1.40 2012/03/25 16:07:04 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(void)
  68 {
  69         int rval;
  70
  71         root = spec(stdin);
  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 (compare(ep, p))
 128                                         rval = MISMATCHEXIT;
 129                                 if (!(ep->flags & F_IGN) &&
 130                                     ep->type == F_DIR &&
 131                                     p->fts_info == FTS_D) {
 132                                         if (ep->child) {
 133                                                 level = ep->child;
 134                                                 ++specdepth;
 135                                         }
 136                                 } else
 137                                         fts_set(t, p, FTS_SKIP);
 138                                 break;
 139                         }
 140
 141                 if (ep)
 142                         continue;
 143  extra:
 144                 if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
 145                         printf("extra: %s", RP(p));
 146                         if (rflag) {
 147                                 if ((S_ISDIR(p->fts_statp->st_mode)
 148                                     ? rmdir : unlink)(p->fts_accpath)) {
 149                                         printf(", not removed: %s",
 150                                             strerror(errno));
 151                                 } else
 152                                         printf(", removed");
 153                         }
 154                         putchar('\n');
 155                 }
 156                 fts_set(t, p, FTS_SKIP);
 157         }
 158         fts_close(t);
 159         if (sflag)
 160                 warnx("%s checksum: %u", fullpath, crc_total);
 161         return (rval);
 162 }
 163
 164 static void
 165 miss(NODE *p, char *tail)
 166 {
 167         int create;
 168         char *tp;
 169         const char *type;
 170         u_int32_t flags;
 171
 172         for (; p; p = p->next) {
 173                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 174                         continue;
 175                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 176                         continue;
 177                 strcpy(tail, p->name);
 178                 if (!(p->flags & F_VISIT))
 179                         printf("missing: %s", path);
 180                 switch (p->type) {
 181                 case F_BLOCK:
 182                 case F_CHAR:
 183                         type = "device";
 184                         break;
 185                 case F_DIR:
 186                         type = "directory";
 187                         break;
 188                 case F_LINK:
 189                         type = "symlink";
 190                         break;
 191                 default:
 192                         putchar('\n');
 193                         continue;
 194                 }
 195
 196                 create = 0;
 197                 if (!(p->flags & F_VISIT) && uflag) {
 198                         if (mtree_Wflag || p->type == F_LINK)
 199                                 goto createit;
 200                         if (!(p->flags & (F_UID | F_UNAME)))
 201                             printf(
 202                                 " (%s not created: user not specified)", type);
 203                         else if (!(p->flags & (F_GID | F_GNAME)))
 204                             printf(
 205                                 " (%s not created: group not specified)", type);
 206                         else if (!(p->flags & F_MODE))
 207                             printf(
 208                                 " (%s not created: mode not specified)", type);
 209                         else
 210  createit:
 211                         switch (p->type) {
 212                         case F_BLOCK:
 213                         case F_CHAR:
 214                                 if (mtree_Wflag)
 215                                         continue;
 216                                 if (!(p->flags & F_DEV))
 217                                         printf(
 218                                     " (%s not created: device not specified)",
 219                                             type);
 220                                 else if (mknod(path,
 221                                     p->st_mode | nodetoino(p->type),
 222                                     p->st_rdev) == -1)
 223                                         printf(" (%s not created: %s)\n",
 224                                             type, strerror(errno));
 225                                 else
 226                                         create = 1;
 227                                 break;
 228                         case F_LINK:
 229                                 if (!(p->flags & F_SLINK))
 230                                         printf(
 231                                     " (%s not created: link not specified)\n",
 232                                             type);
 233                                 else if (symlink(p->slink, path))
 234                                         printf(
 235                                             " (%s not created: %s)\n",
 236                                             type, strerror(errno));
 237                                 else
 238                                         create = 1;
 239                                 break;
 240                         case F_DIR:
 241                                 if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
 242                                         printf(" (not created: %s)",
 243                                             strerror(errno));
 244                                 else
 245                                         create = 1;
 246                                 break;
 247                         default:
 248                                 mtree_err("can't create create %s",
 249                                     nodetype(p->type));
 250                         }
 251                 }
 252                 if (create)
 253                         printf(" (created)");
 254                 if (p->type == F_DIR) {
 255                         if (!(p->flags & F_VISIT))
 256                                 putchar('\n');
 257                         for (tp = tail; *tp; ++tp)
 258                                 continue;
 259                         *tp = '/';
 260                         miss(p->child, tp + 1);
 261                         *tp = '\0';
 262                 } else
 263                         putchar('\n');
 264
 265                 if (!create || mtree_Wflag)
 266                         continue;
 267 #ifndef __minix
 268                 if ((p->flags & (F_UID | F_UNAME)) &&
 269                     (p->flags & (F_GID | F_GNAME)) &&
 270                     (lchown(path, p->st_uid, p->st_gid))) {
 271                         printf("%s: user/group/mode not modified: %s\n",
 272                             path, strerror(errno));
 273                         printf("%s: warning: file mode %snot set\n", path,
 274                             (p->flags & F_FLAGS) ? "and file flags " : "");
 275                         continue;
 276                 }
 277 #else
 278                 if ((p->flags & (F_UID | F_UNAME)) &&
 279                     (p->flags & (F_GID | F_GNAME))) {
 280                         printf("Warning: unable to change user/group/mode due "
 281                             "to lack of lchown(3) support");
 282                 }
 283 #endif
 284                 if (p->flags & F_MODE) {
 285 #ifndef __minix
 286                         if (lchmod(path, p->st_mode))
 287                                 printf("%s: permissions not set: %s\n",
 288                                     path, strerror(errno));
 289 #else
 290                         printf("Warning: unable to set permissions due "
 291                             "to lack of lchmod(3) support");
 292 #endif
 293                 }
 294 #if HAVE_STRUCT_STAT_ST_FLAGS && !defined(__minix)
 295                 if ((p->flags & F_FLAGS) && p->st_flags) {
 296                         if (iflag)
 297                                 flags = p->st_flags;
 298                         else
 299                                 flags = p->st_flags & ~SP_FLGS;
 300                         if (lchflags(path, flags))
 301                                 printf("%s: file flags not set: %s\n",
 302                                     path, strerror(errno));
 303                 }
 304 #endif  /* HAVE_STRUCT_STAT_ST_FLAGS */
 305         }
 306 }