xref: /dragonfly/usr.sbin/mtree/verify.c (revision 92fe556d)
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
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
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
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