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 nsort(const FTSENT * const *a, const FTSENT * const *b)
  69 {
  70         return (strcmp((*a)->fts_name, (*b)->fts_name));
  71 }
  72
  73 static int
  74 vwalk(void)
  75 {
  76         FTS *t;
  77         FTSENT *p;
  78         NODE *ep, *level;
  79         int specdepth, rval;
  80         char *argv[2];
  81         char dot[] = ".";
  82
  83         argv[0] = dot;
  84         argv[1] = NULL;
  85         if ((t = fts_open(argv, ftsoptions, nsort)) == NULL)
  86                 err(1, "line %d: fts_open", lineno);
  87         level = root;
  88         specdepth = rval = 0;
  89         while ((p = fts_read(t))) {
  90                 if (check_excludes(p->fts_name, p->fts_path)) {
  91                         fts_set(t, p, FTS_SKIP);
  92                         continue;
  93                 }
  94                 switch(p->fts_info) {
  95                 case FTS_D:
  96                 case FTS_SL:
  97                         break;
  98                 case FTS_DP:
  99                         if (specdepth > p->fts_level) {
 100                                 for (level = level->parent; level->prev;
 101                                       level = level->prev);
 102                                 --specdepth;
 103                         }
 104                         continue;
 105                 case FTS_DNR:
 106                 case FTS_ERR:
 107                 case FTS_NS:
 108                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 109                         continue;
 110                 default:
 111                         if (dflag)
 112                                 continue;
 113                 }
 114
 115                 if (specdepth != p->fts_level)
 116                         goto extra;
 117                 for (ep = level; ep; ep = ep->next)
 118                         if ((ep->flags & F_MAGIC &&
 119                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 120                             !strcmp(ep->name, p->fts_name)) {
 121                                 ep->flags |= F_VISIT;
 122                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 123                                     compare(ep->name, ep, p))
 124                                         rval = MISMATCHEXIT;
 125                                 if (ep->flags & F_IGN)
 126                                         (void)fts_set(t, p, FTS_SKIP);
 127                                 else if (ep->child && ep->type == F_DIR &&
 128                                     p->fts_info == FTS_D) {
 129                                         level = ep->child;
 130                                         ++specdepth;
 131                                 }
 132                                 break;
 133                         }
 134
 135                 if (ep)
 136                         continue;
 137 extra:
 138                 if (!eflag) {
 139                         (void)printf("%s extra", RP(p));
 140                         if (rflag) {
 141                                 if ((S_ISDIR(p->fts_statp->st_mode)
 142                                     ? rmdir : unlink)(p->fts_accpath)) {
 143                                         (void)printf(", not removed: %s",
 144                                             strerror(errno));
 145                                 } else
 146                                         (void)printf(", removed");
 147                         }
 148                         (void)putchar('\n');
 149                 }
 150                 (void)fts_set(t, p, FTS_SKIP);
 151         }
 152         (void)fts_close(t);
 153         if (sflag)
 154                 warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
 155         return (rval);
 156 }
 157
 158 static void
 159 miss(NODE *p, char *tail)
 160 {
 161         int create;
 162         char *tp;
 163         const char *type, *what;
 164         int serr;
 165
 166         for (; p; p = p->next) {
 167                 if (p->flags & F_OPT && !(p->flags & F_VISIT))
 168                         continue;
 169                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 170                         continue;
 171                 (void)strcpy(tail, p->name);
 172                 if (!(p->flags & F_VISIT)) {
 173                         /* Don't print missing message if file exists as a
 174                            symbolic link and the -q flag is set. */
 175                         struct stat statbuf;
 176
 177                         if (qflag && stat(path, &statbuf) == 0)
 178                                 p->flags |= F_VISIT;
 179                         else
 180                                 (void)printf("%s missing", path);
 181                 }
 182                 if (p->type != F_DIR && p->type != F_LINK) {
 183                         putchar('\n');
 184                         continue;
 185                 }
 186
 187                 create = 0;
 188                 if (p->type == F_LINK)
 189                         type = "symlink";
 190                 else
 191                         type = "directory";
 192                 if (!(p->flags & F_VISIT) && uflag) {
 193                         if (!(p->flags & (F_UID | F_UNAME)))
 194                                 (void)printf(" (%s not created: user not specified)", type);
 195                         else if (!(p->flags & (F_GID | F_GNAME)))
 196                                 (void)printf(" (%s not created: group not specified)", type);
 197                         else if (p->type == F_LINK) {
 198                                 if (symlink(p->slink, path))
 199                                         (void)printf(" (symlink not created: %s)\n",
 200                                             strerror(errno));
 201                                 else
 202                                         (void)printf(" (created)\n");
 203                                 if (lchown(path, p->st_uid, p->st_gid) == -1) {
 204                                         serr = errno;
 205                                         if (p->st_uid == (uid_t)-1)
 206                                                 what = "group";
 207                                         else if (lchown(path, (uid_t)-1,
 208                                             p->st_gid) == -1)
 209                                                 what = "user & group";
 210                                         else {
 211                                                 what = "user";
 212                                                 errno = serr;
 213                                         }
 214                                         (void)printf("%s: %s not modified: %s"
 215                                             "\n", path, what, strerror(errno));
 216                                 }
 217                                 continue;
 218                         } else if (!(p->flags & F_MODE))
 219                             (void)printf(" (directory not created: mode not specified)");
 220                         else if (mkdir(path, S_IRWXU))
 221                                 (void)printf(" (directory not created: %s)",
 222                                     strerror(errno));
 223                         else {
 224                                 create = 1;
 225                                 (void)printf(" (created)");
 226                         }
 227                 }
 228                 if (!(p->flags & F_VISIT))
 229                         (void)putchar('\n');
 230
 231                 for (tp = tail; *tp; ++tp);
 232                 *tp = '/';
 233                 miss(p->child, tp + 1);
 234                 *tp = '\0';
 235
 236                 if (!create)
 237                         continue;
 238                 if (chown(path, p->st_uid, p->st_gid) == -1) {
 239                         serr = errno;
 240                         if (p->st_uid == (uid_t)-1)
 241                                 what = "group";
 242                         else if (chown(path, (uid_t)-1, p->st_gid) == -1)
 243                                 what = "user & group";
 244                         else {
 245                                 what = "user";
 246                                 errno = serr;
 247                         }
 248                         (void)printf("%s: %s not modified: %s\n",
 249                             path, what, strerror(errno));
 250                 }
 251                 if (chmod(path, p->st_mode))
 252                         (void)printf("%s: permissions not set: %s\n",
 253                             path, strerror(errno));
 254                 if ((p->flags & F_FLAGS) && p->st_flags &&
 255                     chflags(path, p->st_flags))
 256                         (void)printf("%s: file flags not set: %s\n",
 257                             path, strerror(errno));
 258         }
 259 }