mtree/verify.c

   1 /*-
   2  * Copyright (c) 1990, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #if 0
  31 #ifndef lint
  32 static char sccsid[] = "@(#)verify.c    8.1 (Berkeley) 6/6/93";
  33 #endif /* not lint */
  34 #endif
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD: src/usr.sbin/mtree/verify.c,v 1.24 2005/08/11 15:43:55 brian Exp $");
  37
  38 #include <sys/param.h>
  39 #include <sys/stat.h>
  40 #include <dirent.h>
  41 #include <err.h>
  42 #include <errno.h>
  43 #include <fts.h>
  44 #include <fnmatch.h>
  45 #include <stdio.h>
  46 #include <stdint.h>
  47 #include <unistd.h>
  48 #include "mtree.h"
  49 #include "extern.h"
  50
  51 static NODE *root;
  52 static char path[MAXPATHLEN];
  53
  54 static void     miss(NODE *, char *);
  55 static int      vwalk(void);
  56
  57 int
  58 mtree_verifyspec(FILE *fi)
  59 {
  60         int rval;
  61
  62         root = mtree_readspec(fi);
  63         rval = vwalk();
  64         miss(root, path);
  65         return (rval);
  66 }
  67
  68 static int
  69 vwalk(void)
  70 {
  71         FTS *t;
  72         FTSENT *p;
  73         NODE *ep, *level;
  74         int specdepth, rval;
  75         char *argv[2];
  76         char dot[] = ".";
  77
  78         argv[0] = dot;
  79         argv[1] = NULL;
  80         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  81                 err(1, "line %d: fts_open", lineno);
  82         level = root;
  83         specdepth = rval = 0;
  84         while ((p = fts_read(t))) {
  85                 if (check_excludes(p->fts_name, p->fts_path)) {
  86                         fts_set(t, p, FTS_SKIP);
  87                         continue;
  88                 }
  89                 switch(p->fts_info) {
  90                 case FTS_D:
  91                 case FTS_SL:
  92                         break;
  93                 case FTS_DP:
  94                         if (level == NULL) {
  95                                 errx(1 , "invalid root in vwalk");
  96                         }
  97                         if (specdepth > p->fts_level) {
  98                                 for (level = level->parent; level->prev;
  99                                       level = level->prev);
 100                                 --specdepth;
 101                         }
 102                         continue;
 103                 case FTS_DNR:
 104                 case FTS_ERR:
 105                 case FTS_NS:
 106                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 107                         continue;
 108                 default:
 109                         if (dflag)
 110                                 continue;
 111                 }
 112
 113                 if (specdepth != p->fts_level)
 114                         goto extra;
 115                 for (ep = level; ep; ep = ep->next)
 116                         if ((ep->flags & F_MAGIC &&
 117                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 118                             !strcmp(ep->name, p->fts_name)) {
 119                                 ep->flags |= F_VISIT;
 120                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 121                                     compare(ep->name, ep, p))
 122                                         rval = MISMATCHEXIT;
 123                                 if (ep->flags & F_IGN)
 124                                         (void)fts_set(t, p, FTS_SKIP);
 125                                 else if (ep->child && ep->type == F_DIR &&
 126                                     p->fts_info == FTS_D) {
 127                                         level = ep->child;
 128                                         ++specdepth;
 129                                 }
 130                                 break;
 131                         }
 132
 133                 if (ep)
 134                         continue;
 135 extra:
 136                 if (!eflag) {
 137                         (void)printf("%s extra", RP(p));
 138                         if (rflag) {
 139                                 if ((S_ISDIR(p->fts_statp->st_mode)
 140                                     ? rmdir : unlink)(p->fts_accpath)) {
 141                                         (void)printf(", not removed: %s",
 142                                             strerror(errno));
 143                                 } else
 144                                         (void)printf(", removed");
 145                         }
 146                         (void)putchar('\n');
 147                 }
 148                 (void)fts_set(t, p, FTS_SKIP);
 149         }
 150         (void)fts_close(t);
 151         if (sflag)
 152                 warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
 153         return (rval);
 154 }
 155
 156 static void
 157 miss(NODE *p, char *tail)
 158 {
 159         int create;
 160         char *tp;
 161         const char *type, *what;
 162         int serr;
 163
 164         for (; p; p = p->next) {
 165                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 166                         continue;
 167                 (void)strcpy(tail, p->name);
 168                 if (!(p->flags & F_VISIT)) {
 169                         /* Don't print missing message if file exists as a
 170                            symbolic link and the -q flag is set. */
 171                         struct stat statbuf;
 172
 173                         if (qflag && stat(path, &statbuf) == 0)
 174                                 p->flags |= F_VISIT;
 175                         else
 176                                 (void)printf("%s missing", path);
 177                 }
 178                 if (p->type != F_DIR && p->type != F_LINK) {
 179                         putchar('\n');
 180                         continue;
 181                 }
 182
 183                 create = 0;
 184                 if (p->type == F_LINK)
 185                         type = "symlink";
 186                 else
 187                         type = "directory";
 188                 if (!(p->flags & F_VISIT) && uflag) {
 189                         if (!(p->flags & (F_UID | F_UNAME)))
 190                                 (void)printf(" (%s not created: user not specified)", type);
 191                         else if (!(p->flags & (F_GID | F_GNAME)))
 192                                 (void)printf(" (%s not created: group not specified)", type);
 193                         else if (p->type == F_LINK) {
 194                                 if (symlink(p->slink, path))
 195                                         (void)printf(" (symlink not created: %s)\n",
 196                                             strerror(errno));
 197                                 else
 198                                         (void)printf(" (created)\n");
 199                                 if (lchown(path, p->st_uid, p->st_gid) == -1) {
 200                                         serr = errno;
 201                                         if (p->st_uid == (uid_t)-1)
 202                                                 what = "group";
 203                                         else if (lchown(path, (uid_t)-1,
 204                                             p->st_gid) == -1)
 205                                                 what = "user & group";
 206                                         else {
 207                                                 what = "user";
 208                                                 errno = serr;
 209                                         }
 210                                         (void)printf("%s: %s not modified: %s"
 211                                             "\n", path, what, strerror(errno));
 212                                 }
 213                                 continue;
 214                         } else if (!(p->flags & F_MODE))
 215                             (void)printf(" (directory not created: mode not specified)");
 216                         else if (mkdir(path, S_IRWXU))
 217                                 (void)printf(" (directory not created: %s)",
 218                                     strerror(errno));
 219                         else {
 220                                 create = 1;
 221                                 (void)printf(" (created)");
 222                         }
 223                 }
 224                 if (!(p->flags & F_VISIT))
 225                         (void)putchar('\n');
 226
 227                 for (tp = tail; *tp; ++tp);
 228                 *tp = '/';
 229                 miss(p->child, tp + 1);
 230                 *tp = '\0';
 231
 232                 if (!create)
 233                         continue;
 234                 if (chown(path, p->st_uid, p->st_gid) == -1) {
 235                         serr = errno;
 236                         if (p->st_uid == (uid_t)-1)
 237                                 what = "group";
 238                         else if (chown(path, (uid_t)-1, p->st_gid) == -1)
 239                                 what = "user & group";
 240                         else {
 241                                 what = "user";
 242                                 errno = serr;
 243                         }
 244                         (void)printf("%s: %s not modified: %s\n",
 245                             path, what, strerror(errno));
 246                 }
 247                 if (chmod(path, p->st_mode))
 248                         (void)printf("%s: permissions not set: %s\n",
 249                             path, strerror(errno));
 250                 if ((p->flags & F_FLAGS) && p->st_flags &&
 251                     chflags(path, (u_int)p->st_flags))
 252                         (void)printf("%s: file flags not set: %s\n",
 253                             path, strerror(errno));
 254         }
 255 }