usr.sbin/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("$FreeBSD$");
  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 <unistd.h>
  47 #include "mtree.h"
  48 #include "extern.h"
  49
  50 static NODE *root;
  51 static char path[MAXPATHLEN];
  52
  53 static void     miss(NODE *, char *);
  54 static int      vwalk(void);
  55
  56 int
  57 mtree_verifyspec(FILE *fi)
  58 {
  59         int rval;
  60
  61         root = mtree_readspec(fi);
  62         rval = vwalk();
  63         miss(root, path);
  64         return (rval);
  65 }
  66
  67 static int
  68 vwalk(void)
  69 {
  70         FTS *t;
  71         FTSENT *p;
  72         NODE *ep, *level;
  73         int specdepth, rval;
  74         char *argv[2];
  75         char dot[] = ".";
  76
  77         argv[0] = dot;
  78         argv[1] = NULL;
  79         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  80                 err(1, "line %d: fts_open", lineno);
  81         level = root;
  82         specdepth = rval = 0;
  83         while ((p = fts_read(t))) {
  84                 if (check_excludes(p->fts_name, p->fts_path)) {
  85                         fts_set(t, p, FTS_SKIP);
  86                         continue;
  87                 }
  88                 switch(p->fts_info) {
  89                 case FTS_D:
  90                 case FTS_SL:
  91                         break;
  92                 case FTS_DP:
  93                         if (specdepth > p->fts_level) {
  94                                 for (level = level->parent; level->prev;
  95                                       level = level->prev);
  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->name, ep, p))
 118                                         rval = MISMATCHEXIT;
 119                                 if (ep->flags & F_IGN)
 120                                         (void)fts_set(t, p, FTS_SKIP);
 121                                 else if (ep->child && ep->type == F_DIR &&
 122                                     p->fts_info == FTS_D) {
 123                                         level = ep->child;
 124                                         ++specdepth;
 125                                 }
 126                                 break;
 127                         }
 128
 129                 if (ep)
 130                         continue;
 131 extra:
 132                 if (!eflag) {
 133                         (void)printf("%s extra", RP(p));
 134                         if (rflag) {
 135                                 if ((S_ISDIR(p->fts_statp->st_mode)
 136                                     ? rmdir : unlink)(p->fts_accpath)) {
 137                                         (void)printf(", not removed: %s",
 138                                             strerror(errno));
 139                                 } else
 140                                         (void)printf(", removed");
 141                         }
 142                         (void)putchar('\n');
 143                 }
 144                 (void)fts_set(t, p, FTS_SKIP);
 145         }
 146         (void)fts_close(t);
 147         if (sflag)
 148                 warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
 149         return (rval);
 150 }
 151
 152 static void
 153 miss(NODE *p, char *tail)
 154 {
 155         int create;
 156         char *tp;
 157         const char *type, *what;
 158         int serr;
 159
 160         for (; p; p = p->next) {
 161                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 162                         continue;
 163                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 164                         continue;
 165                 (void)strcpy(tail, p->name);
 166                 if (!(p->flags & F_VISIT)) {
 167                         /* Don't print missing message if file exists as a
 168                            symbolic link and the -q flag is set. */
 169                         struct stat statbuf;
 170
 171                         if (qflag && stat(path, &statbuf) == 0)
 172                                 p->flags |= F_VISIT;
 173                         else
 174                                 (void)printf("%s missing", path);
 175                 }
 176                 if (p->type != F_DIR && p->type != F_LINK) {
 177                         putchar('\n');
 178                         continue;
 179                 }
 180
 181                 create = 0;
 182                 if (p->type == F_LINK)
 183                         type = "symlink";
 184                 else
 185                         type = "directory";
 186                 if (!(p->flags & F_VISIT) && uflag) {
 187                         if (!(p->flags & (F_UID | F_UNAME)))
 188                                 (void)printf(" (%s not created: user not specified)", type);
 189                         else if (!(p->flags & (F_GID | F_GNAME)))
 190                                 (void)printf(" (%s not created: group not specified)", type);
 191                         else if (p->type == F_LINK) {
 192                                 if (symlink(p->slink, path))
 193                                         (void)printf(" (symlink not created: %s)\n",
 194                                             strerror(errno));
 195                                 else
 196                                         (void)printf(" (created)\n");
 197                                 if (lchown(path, p->st_uid, p->st_gid) == -1) {
 198                                         serr = errno;
 199                                         if (p->st_uid == (uid_t)-1)
 200                                                 what = "group";
 201                                         else if (lchown(path, (uid_t)-1,
 202                                             p->st_gid) == -1)
 203                                                 what = "user & group";
 204                                         else {
 205                                                 what = "user";
 206                                                 errno = serr;
 207                                         }
 208                                         (void)printf("%s: %s not modified: %s"
 209                                             "\n", path, what, strerror(errno));
 210                                 }
 211                                 continue;
 212                         } else if (!(p->flags & F_MODE))
 213                             (void)printf(" (directory not created: mode not specified)");
 214                         else if (mkdir(path, S_IRWXU))
 215                                 (void)printf(" (directory not created: %s)",
 216                                     strerror(errno));
 217                         else {
 218                                 create = 1;
 219                                 (void)printf(" (created)");
 220                         }
 221                 }
 222                 if (!(p->flags & F_VISIT))
 223                         (void)putchar('\n');
 224
 225                 for (tp = tail; *tp; ++tp);
 226                 *tp = '/';
 227                 miss(p->child, tp + 1);
 228                 *tp = '\0';
 229
 230                 if (!create)
 231                         continue;
 232                 if (chown(path, p->st_uid, p->st_gid) == -1) {
 233                         serr = errno;
 234                         if (p->st_uid == (uid_t)-1)
 235                                 what = "group";
 236                         else if (chown(path, (uid_t)-1, p->st_gid) == -1)
 237                                 what = "user & group";
 238                         else {
 239                                 what = "user";
 240                                 errno = serr;
 241                         }
 242                         (void)printf("%s: %s not modified: %s\n",
 243                             path, what, strerror(errno));
 244                 }
 245                 if (chmod(path, p->st_mode))
 246                         (void)printf("%s: permissions not set: %s\n",
 247                             path, strerror(errno));
 248                 if ((p->flags & F_FLAGS) && p->st_flags &&
 249                     chflags(path, p->st_flags))
 250                         (void)printf("%s: file flags not set: %s\n",
 251                             path, strerror(errno));
 252         }
 253 }