xref: /dragonfly/usr.sbin/mtree/verify.c (revision b608d1d3)
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 #if HAVE_NBTOOL_CONFIG_H
34 #include "nbtool_config.h"
35 #endif
36 
37 #include <sys/param.h>
38 #include <sys/stat.h>
39 
40 #if ! HAVE_NBTOOL_CONFIG_H
41 #include <dirent.h>
42 #endif
43 
44 #include <errno.h>
45 #include <fnmatch.h>
46 #include <stdio.h>
47 #include <string.h>
48 #include <unistd.h>
49 
50 #include "extern.h"
51 
52 static NODE *root;
53 static char path[MAXPATHLEN];
54 
55 static void	miss(NODE *, char *);
56 static int	vwalk(void);
57 
58 int
59 verify(FILE *fi)
60 {
61 	int rval;
62 
63 	root = spec(fi);
64 	rval = vwalk();
65 	miss(root, path);
66 	return (rval);
67 }
68 
69 static int
70 vwalk(void)
71 {
72 	FTS *t;
73 	FTSENT *p;
74 	NODE *ep, *level;
75 	int specdepth, rval;
76 	char *argv[2];
77 	char  dot[] = ".";
78 	argv[0] = dot;
79 	argv[1] = NULL;
80 
81 	if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
82 		mtree_err("fts_open: %s", strerror(errno));
83 	level = root;
84 	specdepth = rval = 0;
85 	while ((p = fts_read(t)) != NULL) {
86 		if (check_excludes(p->fts_name, p->fts_path)) {
87 			fts_set(t, p, FTS_SKIP);
88 			continue;
89 		}
90 		if (!find_only(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 					continue;
103 				--specdepth;
104 			}
105 			continue;
106 		case FTS_DNR:
107 		case FTS_ERR:
108 		case FTS_NS:
109 			warnx("%s: %s", RP(p), strerror(p->fts_errno));
110 			continue;
111 		default:
112 			if (dflag)
113 				continue;
114 		}
115 
116 		if (specdepth != p->fts_level)
117 			goto extra;
118 		for (ep = level; ep; ep = ep->next)
119 			if ((ep->flags & F_MAGIC &&
120 			    !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
121 			    !strcmp(ep->name, p->fts_name)) {
122 				ep->flags |= F_VISIT;
123 				if ((ep->flags & F_NOCHANGE) == 0 &&
124 				    compare(ep, p))
125 					rval = MISMATCHEXIT;
126 				if (!(ep->flags & F_IGN) &&
127 				    ep->type == F_DIR &&
128 				    p->fts_info == FTS_D) {
129 					if (ep->child) {
130 						level = ep->child;
131 						++specdepth;
132 					}
133 				} else
134 					fts_set(t, p, FTS_SKIP);
135 				break;
136 			}
137 
138 		if (ep)
139 			continue;
140  extra:
141 		if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
142 			printf("extra: %s", RP(p));
143 			if (rflag) {
144 #if HAVE_STRUCT_STAT_ST_FLAGS
145 				if (rflag > 1 &&
146 				    lchflags(p->fts_accpath, 0) == -1)
147 					printf(" (chflags %s)",
148 					    strerror(errno));
149 #endif
150 				if ((S_ISDIR(p->fts_statp->st_mode)
151 				    ? rmdir : unlink)(p->fts_accpath)) {
152 					printf(", not removed: %s",
153 					    strerror(errno));
154 				} else
155 					printf(", removed");
156 			}
157 			putchar('\n');
158 		}
159 		fts_set(t, p, FTS_SKIP);
160 	}
161 	fts_close(t);
162 	if (sflag)
163 		warnx("%s checksum: %u", fullpath, crc_total);
164 	return (rval);
165 }
166 
167 static void
168 miss(NODE *p, char *tail)
169 {
170 	int create;
171 	char *tp;
172 	const char *type;
173 	u_int32_t flags;
174 
175 	for (; p; p = p->next) {
176 		if (p->flags & F_OPT && !(p->flags & F_VISIT))
177 			continue;
178 		if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
179 			continue;
180 		strcpy(tail, p->name);
181 		if (!(p->flags & F_VISIT)) {
182 			/* Don't print missing message if file exists as a
183 			   symbolic link and the -q flag is set. */
184 			struct stat statbuf;
185 
186 			if (qflag && stat(path, &statbuf) == 0 &&
187 			    S_ISDIR(statbuf.st_mode))
188 				p->flags |= F_VISIT;
189 			else
190 				(void)printf("%s missing", path);
191 		}
192 		switch (p->type) {
193 		case F_BLOCK:
194 		case F_CHAR:
195 			type = "device";
196 			break;
197 		case F_DIR:
198 			type = "directory";
199 			break;
200 		case F_LINK:
201 			type = "symlink";
202 			break;
203 		default:
204 			putchar('\n');
205 			continue;
206 		}
207 
208 		create = 0;
209 		if (!(p->flags & F_VISIT) && uflag) {
210 			if (mtree_Wflag || p->type == F_LINK)
211 				goto createit;
212 			if (!(p->flags & (F_UID | F_UNAME)))
213 			    printf(
214 				" (%s not created: user not specified)", type);
215 			else if (!(p->flags & (F_GID | F_GNAME)))
216 			    printf(
217 				" (%s not created: group not specified)", type);
218 			else if (!(p->flags & F_MODE))
219 			    printf(
220 				" (%s not created: mode not specified)", type);
221 			else
222  createit:
223 			switch (p->type) {
224 			case F_BLOCK:
225 			case F_CHAR:
226 				if (mtree_Wflag)
227 					continue;
228 				if (!(p->flags & F_DEV))
229 					printf(
230 				    " (%s not created: device not specified)",
231 					    type);
232 				else if (mknod(path,
233 				    p->st_mode | nodetoino(p->type),
234 				    p->st_rdev) == -1)
235 					printf(" (%s not created: %s)\n",
236 					    type, strerror(errno));
237 				else
238 					create = 1;
239 				break;
240 			case F_LINK:
241 				if (!(p->flags & F_SLINK))
242 					printf(
243 				    " (%s not created: link not specified)\n",
244 					    type);
245 				else if (symlink(p->slink, path))
246 					printf(
247 					    " (%s not created: %s)\n",
248 					    type, strerror(errno));
249 				else
250 					create = 1;
251 				break;
252 			case F_DIR:
253 				if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
254 					printf(" (not created: %s)",
255 					    strerror(errno));
256 				else
257 					create = 1;
258 				break;
259 			default:
260 				mtree_err("can't create create %s",
261 				    nodetype(p->type));
262 			}
263 		}
264 		if (create)
265 			printf(" (created)");
266 		if (p->type == F_DIR) {
267 			if (!(p->flags & F_VISIT))
268 				putchar('\n');
269 			for (tp = tail; *tp; ++tp)
270 				continue;
271 			*tp = '/';
272 			miss(p->child, tp + 1);
273 			*tp = '\0';
274 		} else
275 			putchar('\n');
276 
277 		if (!create || mtree_Wflag)
278 			continue;
279 		if ((p->flags & (F_UID | F_UNAME)) &&
280 		    (p->flags & (F_GID | F_GNAME)) &&
281 		    (lchown(path, p->st_uid, p->st_gid))) {
282 			printf("%s: user/group/mode not modified: %s\n",
283 			    path, strerror(errno));
284 			printf("%s: warning: file mode %snot set\n", path,
285 			    (p->flags & F_FLAGS) ? "and file flags " : "");
286 			continue;
287 		}
288 		if (p->flags & F_MODE) {
289 			if (lchmod(path, p->st_mode))
290 				printf("%s: permissions not set: %s\n",
291 				    path, strerror(errno));
292 		}
293 #if HAVE_STRUCT_STAT_ST_FLAGS
294 		if ((p->flags & F_FLAGS) && p->st_flags) {
295 			if (iflag)
296 				flags = p->st_flags;
297 			else
298 				flags = p->st_flags & ~SP_FLGS;
299 			if (lchflags(path, flags))
300 				printf("%s: file flags not set: %s\n",
301 				    path, strerror(errno));
302 		}
303 #endif	/* HAVE_STRUCT_STAT_ST_FLAGS */
304 	}
305 }
306