xref: /freebsd/contrib/mtree/verify.c (revision d6b92ffa)
1 /*	$NetBSD: verify.c,v 1.44 2013/02/03 19:15:17 christos Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #if HAVE_NBTOOL_CONFIG_H
33 #include "nbtool_config.h"
34 #endif
35 
36 #include <sys/cdefs.h>
37 #if defined(__RCSID) && !defined(lint)
38 #if 0
39 static char sccsid[] = "@(#)verify.c	8.1 (Berkeley) 6/6/93";
40 #else
41 __RCSID("$NetBSD: verify.c,v 1.44 2013/02/03 19:15:17 christos Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #include <sys/param.h>
46 #include <sys/stat.h>
47 
48 #if ! HAVE_NBTOOL_CONFIG_H
49 #include <dirent.h>
50 #endif
51 
52 #include <errno.h>
53 #include <fnmatch.h>
54 #include <stdio.h>
55 #include <string.h>
56 #include <unistd.h>
57 
58 #include "extern.h"
59 
60 static NODE *root;
61 static char path[MAXPATHLEN];
62 
63 static void	miss(NODE *, char *);
64 static int	vwalk(void);
65 
66 int
67 verify(FILE *fi)
68 {
69 	int rval;
70 
71 	root = spec(fi);
72 	rval = vwalk();
73 	miss(root, path);
74 	return (rval);
75 }
76 
77 static int
78 vwalk(void)
79 {
80 	FTS *t;
81 	FTSENT *p;
82 	NODE *ep, *level;
83 	int specdepth, rval;
84 	char *argv[2];
85 	char  dot[] = ".";
86 	argv[0] = dot;
87 	argv[1] = NULL;
88 
89 	if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
90 		mtree_err("fts_open: %s", strerror(errno));
91 	level = root;
92 	specdepth = rval = 0;
93 	while ((p = fts_read(t)) != NULL) {
94 		if (check_excludes(p->fts_name, p->fts_path)) {
95 			fts_set(t, p, FTS_SKIP);
96 			continue;
97 		}
98 		if (!find_only(p->fts_path)) {
99 			fts_set(t, p, FTS_SKIP);
100 			continue;
101 		}
102 		switch(p->fts_info) {
103 		case FTS_D:
104 		case FTS_SL:
105 			break;
106 		case FTS_DP:
107 			if (specdepth > p->fts_level) {
108 				for (level = level->parent; level->prev;
109 				    level = level->prev)
110 					continue;
111 				--specdepth;
112 			}
113 			continue;
114 		case FTS_DNR:
115 		case FTS_ERR:
116 		case FTS_NS:
117 			warnx("%s: %s", RP(p), strerror(p->fts_errno));
118 			continue;
119 		default:
120 			if (dflag)
121 				continue;
122 		}
123 
124 		if (specdepth != p->fts_level)
125 			goto extra;
126 		for (ep = level; ep; ep = ep->next)
127 			if ((ep->flags & F_MAGIC &&
128 			    !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
129 			    !strcmp(ep->name, p->fts_name)) {
130 				ep->flags |= F_VISIT;
131 				if ((ep->flags & F_NOCHANGE) == 0 &&
132 				    compare(ep, p))
133 					rval = MISMATCHEXIT;
134 				if (!(ep->flags & F_IGN) &&
135 				    ep->type == F_DIR &&
136 				    p->fts_info == FTS_D) {
137 					if (ep->child) {
138 						level = ep->child;
139 						++specdepth;
140 					}
141 				} else
142 					fts_set(t, p, FTS_SKIP);
143 				break;
144 			}
145 
146 		if (ep)
147 			continue;
148  extra:
149 		if (!eflag && !(dflag && p->fts_info == FTS_SL)) {
150 			printf("extra: %s", RP(p));
151 			if (rflag) {
152 				if ((S_ISDIR(p->fts_statp->st_mode)
153 				    ? rmdir : unlink)(p->fts_accpath)) {
154 					printf(", not removed: %s",
155 					    strerror(errno));
156 				} else
157 					printf(", removed");
158 			}
159 			putchar('\n');
160 		}
161 		fts_set(t, p, FTS_SKIP);
162 	}
163 	fts_close(t);
164 	if (sflag)
165 		warnx("%s checksum: %u", fullpath, crc_total);
166 	return (rval);
167 }
168 
169 static void
170 miss(NODE *p, char *tail)
171 {
172 	int create;
173 	char *tp;
174 	const char *type;
175 	u_int32_t flags;
176 
177 	for (; p; p = p->next) {
178 		if (p->flags & F_OPT && !(p->flags & F_VISIT))
179 			continue;
180 		if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
181 			continue;
182 		strcpy(tail, p->name);
183 		if (!(p->flags & F_VISIT)) {
184 			/* Don't print missing message if file exists as a
185 			   symbolic link and the -q flag is set. */
186 			struct stat statbuf;
187 
188 			if (qflag && stat(path, &statbuf) == 0 &&
189 			    S_ISDIR(statbuf.st_mode))
190 				p->flags |= F_VISIT;
191 			else
192 				(void)printf("%s missing", path);
193 		}
194 		switch (p->type) {
195 		case F_BLOCK:
196 		case F_CHAR:
197 			type = "device";
198 			break;
199 		case F_DIR:
200 			type = "directory";
201 			break;
202 		case F_LINK:
203 			type = "symlink";
204 			break;
205 		default:
206 			putchar('\n');
207 			continue;
208 		}
209 
210 		create = 0;
211 		if (!(p->flags & F_VISIT) && uflag) {
212 			if (mtree_Wflag || p->type == F_LINK)
213 				goto createit;
214 			if (!(p->flags & (F_UID | F_UNAME)))
215 			    printf(
216 				" (%s not created: user not specified)", type);
217 			else if (!(p->flags & (F_GID | F_GNAME)))
218 			    printf(
219 				" (%s not created: group not specified)", type);
220 			else if (!(p->flags & F_MODE))
221 			    printf(
222 				" (%s not created: mode not specified)", type);
223 			else
224  createit:
225 			switch (p->type) {
226 			case F_BLOCK:
227 			case F_CHAR:
228 				if (mtree_Wflag)
229 					continue;
230 				if (!(p->flags & F_DEV))
231 					printf(
232 				    " (%s not created: device not specified)",
233 					    type);
234 				else if (mknod(path,
235 				    p->st_mode | nodetoino(p->type),
236 				    p->st_rdev) == -1)
237 					printf(" (%s not created: %s)\n",
238 					    type, strerror(errno));
239 				else
240 					create = 1;
241 				break;
242 			case F_LINK:
243 				if (!(p->flags & F_SLINK))
244 					printf(
245 				    " (%s not created: link not specified)\n",
246 					    type);
247 				else if (symlink(p->slink, path))
248 					printf(
249 					    " (%s not created: %s)\n",
250 					    type, strerror(errno));
251 				else
252 					create = 1;
253 				break;
254 			case F_DIR:
255 				if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
256 					printf(" (not created: %s)",
257 					    strerror(errno));
258 				else
259 					create = 1;
260 				break;
261 			default:
262 				mtree_err("can't create create %s",
263 				    nodetype(p->type));
264 			}
265 		}
266 		if (create)
267 			printf(" (created)");
268 		if (p->type == F_DIR) {
269 			if (!(p->flags & F_VISIT))
270 				putchar('\n');
271 			for (tp = tail; *tp; ++tp)
272 				continue;
273 			*tp = '/';
274 			miss(p->child, tp + 1);
275 			*tp = '\0';
276 		} else
277 			putchar('\n');
278 
279 		if (!create || mtree_Wflag)
280 			continue;
281 		if ((p->flags & (F_UID | F_UNAME)) &&
282 		    (p->flags & (F_GID | F_GNAME)) &&
283 		    (lchown(path, p->st_uid, p->st_gid))) {
284 			printf("%s: user/group/mode not modified: %s\n",
285 			    path, strerror(errno));
286 			printf("%s: warning: file mode %snot set\n", path,
287 			    (p->flags & F_FLAGS) ? "and file flags " : "");
288 			continue;
289 		}
290 		if (p->flags & F_MODE) {
291 			if (lchmod(path, p->st_mode))
292 				printf("%s: permissions not set: %s\n",
293 				    path, strerror(errno));
294 		}
295 #if HAVE_STRUCT_STAT_ST_FLAGS
296 		if ((p->flags & F_FLAGS) && p->st_flags) {
297 			if (iflag)
298 				flags = p->st_flags;
299 			else
300 				flags = p->st_flags & ~SP_FLGS;
301 			if (lchflags(path, flags))
302 				printf("%s: file flags not set: %s\n",
303 				    path, strerror(errno));
304 		}
305 #endif	/* HAVE_STRUCT_STAT_ST_FLAGS */
306 	}
307 }
308