xref: /dragonfly/usr.sbin/mtree/verify.c (revision ab48971bad85427d85e59c00727d366bdc3eac3a)
1 /*        @(#)verify.c        8.1 (Berkeley) 6/6/93         */
2 /*        $NetBSD: verify.c,v 1.46 2015/01/23 20:28:24 christos Exp $ */
3 
4 /*-
5  * Copyright (c) 1990, 1993
6  *        The Regents of the University of California.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #include <sys/param.h>
34 #include <sys/stat.h>
35 
36 #include <dirent.h>
37 #include <errno.h>
38 #include <fnmatch.h>
39 #include <stdio.h>
40 #include <string.h>
41 #include <unistd.h>
42 
43 #include "extern.h"
44 
45 static NODE *root;
46 static char path[MAXPATHLEN];
47 
48 static void         miss(NODE *, char *);
49 static int          vwalk(void);
50 
51 int
verify(FILE * fi)52 verify(FILE *fi)
53 {
54           int rval;
55 
56           root = spec(fi);
57           rval = vwalk();
58           miss(root, path);
59           return (rval);
60 }
61 
62 static int
vwalk(void)63 vwalk(void)
64 {
65           FTS *t;
66           FTSENT *p;
67           NODE *ep, *level;
68           int specdepth, rval;
69           char *argv[2];
70           char  dot[] = ".";
71           argv[0] = dot;
72           argv[1] = NULL;
73 
74           if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
75                     mtree_err("fts_open: %s", strerror(errno));
76           level = root;
77           specdepth = rval = 0;
78           while ((p = fts_read(t)) != NULL) {
79                     if (check_excludes(p->fts_name, p->fts_path)) {
80                               fts_set(t, p, FTS_SKIP);
81                               continue;
82                     }
83                     if (!find_only(p->fts_path)) {
84                               fts_set(t, p, FTS_SKIP);
85                               continue;
86                     }
87                     switch(p->fts_info) {
88                     case FTS_D:
89                     case FTS_SL:
90                               break;
91                     case FTS_DP:
92                               if (specdepth > p->fts_level) {
93                                         for (level = level->parent; level->prev;
94                                             level = level->prev)
95                                                   continue;
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, p))
118                                                   rval = MISMATCHEXIT;
119                                         if (!(ep->flags & F_IGN) &&
120                                             ep->type == F_DIR &&
121                                             p->fts_info == FTS_D) {
122                                                   if (ep->child) {
123                                                             level = ep->child;
124                                                             ++specdepth;
125                                                   }
126                                         } else
127                                                   fts_set(t, p, FTS_SKIP);
128                                         break;
129                               }
130 
131                     if (ep)
132                               continue;
133  extra:
134                     if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
135                               printf("extra: %s", RP(p));
136                               if (rflag) {
137 #if HAVE_STRUCT_STAT_ST_FLAGS
138                                         if (rflag > 1 &&
139                                             lchflags(p->fts_accpath, 0) == -1)
140                                                   printf(" (chflags %s)",
141                                                       strerror(errno));
142 #endif
143                                         if ((S_ISDIR(p->fts_statp->st_mode)
144                                             ? rmdir : unlink)(p->fts_accpath)) {
145                                                   printf(", not removed: %s",
146                                                       strerror(errno));
147                                         } else
148                                                   printf(", removed");
149                               }
150                               putchar('\n');
151                     }
152                     fts_set(t, p, FTS_SKIP);
153           }
154           fts_close(t);
155           if (sflag)
156                     warnx("%s checksum: %u", fullpath, crc_total);
157           return (rval);
158 }
159 
160 static void
miss(NODE * p,char * tail)161 miss(NODE *p, char *tail)
162 {
163           int create;
164           char *tp;
165           const char *type;
166 #if HAVE_STRUCT_STAT_ST_FLAGS
167           u_int32_t flags;
168 #endif
169 
170           for (; p; p = p->next) {
171                     if (p->flags & F_OPT && !(p->flags & F_VISIT))
172                               continue;
173                     if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
174                               continue;
175                     strcpy(tail, p->name);
176                     if (!(p->flags & F_VISIT)) {
177                               /* Don't print missing message if file exists as a
178                                  symbolic link and the -q flag is set. */
179                               struct stat statbuf;
180 
181                               if (qflag && stat(path, &statbuf) == 0 &&
182                                   S_ISDIR(statbuf.st_mode))
183                                         p->flags |= F_VISIT;
184                               else
185                                         (void)printf("%s missing", path);
186                     }
187                     switch (p->type) {
188                     case F_BLOCK:
189                     case F_CHAR:
190                               type = "device";
191                               break;
192                     case F_DIR:
193                               type = "directory";
194                               break;
195                     case F_LINK:
196                               type = "symlink";
197                               break;
198                     default:
199                               putchar('\n');
200                               continue;
201                     }
202 
203                     create = 0;
204                     if (!(p->flags & F_VISIT) && uflag) {
205                               if (mtree_Wflag || p->type == F_LINK)
206                                         goto createit;
207                               if (!(p->flags & (F_UID | F_UNAME)))
208                                   printf(
209                                         " (%s not created: user not specified)", type);
210                               else if (!(p->flags & (F_GID | F_GNAME)))
211                                   printf(
212                                         " (%s not created: group not specified)", type);
213                               else if (!(p->flags & F_MODE))
214                                   printf(
215                                         " (%s not created: mode not specified)", type);
216                               else
217  createit:
218                               switch (p->type) {
219                               case F_BLOCK:
220                               case F_CHAR:
221                                         if (mtree_Wflag)
222                                                   continue;
223                                         if (!(p->flags & F_DEV))
224                                                   printf(
225                                             " (%s not created: device not specified)",
226                                                       type);
227                                         else if (mknod(path,
228                                             p->st_mode | nodetoino(p->type),
229                                             p->st_rdev) == -1)
230                                                   printf(" (%s not created: %s)\n",
231                                                       type, strerror(errno));
232                                         else
233                                                   create = 1;
234                                         break;
235                               case F_LINK:
236                                         if (!(p->flags & F_SLINK))
237                                                   printf(
238                                             " (%s not created: link not specified)\n",
239                                                       type);
240                                         else if (symlink(p->slink, path))
241                                                   printf(
242                                                       " (%s not created: %s)\n",
243                                                       type, strerror(errno));
244                                         else
245                                                   create = 1;
246                                         break;
247                               case F_DIR:
248                                         if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
249                                                   printf(" (not created: %s)",
250                                                       strerror(errno));
251                                         else
252                                                   create = 1;
253                                         break;
254                               default:
255                                         mtree_err("can't create create %s",
256                                             nodetype(p->type));
257                               }
258                     }
259                     if (create)
260                               printf(" (created)");
261                     if (p->type == F_DIR) {
262                               if (!(p->flags & F_VISIT))
263                                         putchar('\n');
264                               for (tp = tail; *tp; ++tp)
265                                         continue;
266                               *tp = '/';
267                               miss(p->child, tp + 1);
268                               *tp = '\0';
269                     } else
270                               putchar('\n');
271 
272                     if (!create || mtree_Wflag)
273                               continue;
274                     if ((p->flags & (F_UID | F_UNAME)) &&
275                         (p->flags & (F_GID | F_GNAME)) &&
276                         (lchown(path, p->st_uid, p->st_gid))) {
277                               printf("%s: user/group/mode not modified: %s\n",
278                                   path, strerror(errno));
279                               printf("%s: warning: file mode %snot set\n", path,
280                                   (p->flags & F_FLAGS) ? "and file flags " : "");
281                               continue;
282                     }
283                     if (p->flags & F_MODE) {
284                               if (lchmod(path, p->st_mode))
285                                         printf("%s: permissions not set: %s\n",
286                                             path, strerror(errno));
287                     }
288 #if HAVE_STRUCT_STAT_ST_FLAGS
289                     if ((p->flags & F_FLAGS) && p->st_flags) {
290                               if (iflag)
291                                         flags = p->st_flags;
292                               else
293                                         flags = p->st_flags & ~SP_FLGS;
294                               if (lchflags(path, flags))
295                                         printf("%s: file flags not set: %s\n",
296                                             path, strerror(errno));
297                     }
298 #endif    /* HAVE_STRUCT_STAT_ST_FLAGS */
299           }
300 }
301