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 int      miss(NODE *, char *);
  55 static int      vwalk(void);
  56
  57 int
  58 mtree_verifyspec(FILE *fi)
  59 {
  60         int rval, mval;
  61
  62         root = mtree_readspec(fi);
  63         rval = vwalk();
  64         mval = miss(root, path);
  65
  66         if (rval != 0)
  67                 return rval;
  68         else
  69                 return mval;
  70 }
  71
  72 static int
  73 vwalk(void)
  74 {
  75         FTS *t;
  76         FTSENT *p;
  77         NODE *ep, *level;
  78         int specdepth, rval;
  79         char *argv[2];
  80         char dot[] = ".";
  81
  82         argv[0] = dot;
  83         argv[1] = NULL;
  84         if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
  85                 err(1, "line %d: fts_open", lineno);
  86         level = root;
  87         specdepth = rval = 0;
  88         while ((p = fts_read(t))) {
  89                 if (check_excludes(p->fts_name, p->fts_path)) {
  90                         fts_set(t, p, FTS_SKIP);
  91                         continue;
  92                 }
  93                 switch(p->fts_info) {
  94                 case FTS_D:
  95                 case FTS_SL:
  96                         break;
  97                 case FTS_DP:
  98                         if (level == NULL) {
  99                                 errx(1 , "invalid root in vwalk");
 100                         }
 101                         if (specdepth > p->fts_level) {
 102                                 for (level = level->parent; level->prev;
 103                                       level = level->prev);
 104                                 --specdepth;
 105                         }
 106                         continue;
 107                 case FTS_DNR:
 108                 case FTS_ERR:
 109                 case FTS_NS:
 110                         warnx("%s: %s", RP(p), strerror(p->fts_errno));
 111                         continue;
 112                 default:
 113                         if (dflag)
 114                                 continue;
 115                 }
 116
 117                 if (specdepth != p->fts_level)
 118                         goto extra;
 119                 for (ep = level; ep; ep = ep->next)
 120                         if ((ep->flags & F_MAGIC &&
 121                             !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
 122                             !strcmp(ep->name, p->fts_name)) {
 123                                 ep->flags |= F_VISIT;
 124                                 if ((ep->flags & F_NOCHANGE) == 0 &&
 125                                     compare(ep->name, ep, p))
 126                                         rval = MISMATCHEXIT;
 127                                 if (ep->flags & F_IGN)
 128                                         (void)fts_set(t, p, FTS_SKIP);
 129                                 else if (ep->child && ep->type == F_DIR &&
 130                                     p->fts_info == FTS_D) {
 131                                         level = ep->child;
 132                                         ++specdepth;
 133                                 }
 134                                 break;
 135                         }
 136
 137                 if (ep)
 138                         continue;
 139 extra:
 140                 if (!eflag) {
 141                         (void)printf("%s extra", RP(p));
 142                         if (rflag) {
 143                                 if ((S_ISDIR(p->fts_statp->st_mode)
 144                                     ? rmdir : unlink)(p->fts_accpath)) {
 145                                         (void)printf(", not removed: %s",
 146                                             strerror(errno));
 147                                 } else
 148                                         (void)printf(", removed");
 149                         }
 150                         (void)putchar('\n');
 151                 }
 152                 (void)fts_set(t, p, FTS_SKIP);
 153         }
 154         (void)fts_close(t);
 155         if (sflag)
 156                 warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
 157         return (rval);
 158 }
 159
 160 static int
 161 miss(NODE *p, char *tail)
 162 {
 163         int create;
 164         char *tp;
 165         const char *type, *what;
 166         int serr;
 167         int rval = 0;
 168         int rrval = 0;
 169
 170         for (; p; p = p->next) {
 171                 if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
 172                         continue;
 173                 (void)strcpy(tail, p->name);
 174                 if (!(p->flags & F_VISIT)) {
 175                         /* Don't print missing message if file exists as a
 176                            symbolic link and the -q flag is set. */
 177                         struct stat statbuf;
 178
 179                         if (qflag && stat(path, &statbuf) == 0) {
 180                                 p->flags |= F_VISIT;
 181                         } else {
 182                                 (void)printf("%s missing", path);
 183                                 rval = MISMATCHEXIT;
 184                         }
 185                 }
 186                 if (p->type != F_DIR && p->type != F_LINK) {
 187                         putchar('\n');
 188                         continue;
 189                 }
 190
 191                 create = 0;
 192                 if (p->type == F_LINK)
 193                         type = "symlink";
 194                 else
 195                         type = "directory";
 196                 if (!(p->flags & F_VISIT) && uflag) {
 197                         if (!(p->flags & (F_UID | F_UNAME)))
 198                                 (void)printf(" (%s not created: user not specified)", type);
 199                         else if (!(p->flags & (F_GID | F_GNAME)))
 200                                 (void)printf(" (%s not created: group not specified)", type);
 201                         else if (p->type == F_LINK) {
 202                                 if (symlink(p->slink, path))
 203                                         (void)printf(" (symlink not created: %s)\n",
 204                                             strerror(errno));
 205                                 else
 206                                         (void)printf(" (created)\n");
 207                                 if (lchown(path, p->st_uid, p->st_gid) == -1) {
 208                                         serr = errno;
 209                                         if (p->st_uid == (uid_t)-1)
 210                                                 what = "group";
 211                                         else if (lchown(path, (uid_t)-1,
 212                                             p->st_gid) == -1)
 213                                                 what = "user & group";
 214                                         else {
 215                                                 what = "user";
 216                                                 errno = serr;
 217                                         }
 218                                         (void)printf("%s: %s not modified: %s"
 219                                             "\n", path, what, strerror(errno));
 220                                 }
 221                                 continue;
 222                         } else if (!(p->flags & F_MODE))
 223                             (void)printf(" (directory not created: mode not specified)");
 224                         else if (mkdir(path, S_IRWXU))
 225                                 (void)printf(" (directory not created: %s)",
 226                                     strerror(errno));
 227                         else {
 228                                 create = 1;
 229                                 (void)printf(" (created)");
 230                         }
 231                 }
 232                 if (!(p->flags & F_VISIT))
 233                         (void)putchar('\n');
 234
 235                 for (tp = tail; *tp; ++tp);
 236                 *tp = '/';
 237                 rrval = miss(p->child, tp + 1);
 238                 if (rrval != 0)
 239                         rval = rrval;
 240                 *tp = '\0';
 241
 242                 if (!create)
 243                         continue;
 244                 if (chown(path, p->st_uid, p->st_gid) == -1) {
 245                         serr = errno;
 246                         if (p->st_uid == (uid_t)-1)
 247                                 what = "group";
 248                         else if (chown(path, (uid_t)-1, p->st_gid) == -1)
 249                                 what = "user & group";
 250                         else {
 251                                 what = "user";
 252                                 errno = serr;
 253                         }
 254                         (void)printf("%s: %s not modified: %s\n",
 255                             path, what, strerror(errno));
 256                 }
 257                 if (chmod(path, p->st_mode))
 258                         (void)printf("%s: permissions not set: %s\n",
 259                             path, strerror(errno));
 260                 if ((p->flags & F_FLAGS) && p->st_flags &&
 261                     chflags(path, (u_int)p->st_flags))
 262                         (void)printf("%s: file flags not set: %s\n",
 263                             path, strerror(errno));
 264         }
 265         return rval;
 266 }