xref: /dragonfly/usr.sbin/mtree/verify.c (revision 207ba670)
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 	u_int32_t flags;
167 
168 	for (; p; p = p->next) {
169 		if (p->flags & F_OPT && !(p->flags & F_VISIT))
170 			continue;
171 		if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
172 			continue;
173 		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 			    S_ISDIR(statbuf.st_mode))
181 				p->flags |= F_VISIT;
182 			else
183 				(void)printf("%s missing", path);
184 		}
185 		switch (p->type) {
186 		case F_BLOCK:
187 		case F_CHAR:
188 			type = "device";
189 			break;
190 		case F_DIR:
191 			type = "directory";
192 			break;
193 		case F_LINK:
194 			type = "symlink";
195 			break;
196 		default:
197 			putchar('\n');
198 			continue;
199 		}
200 
201 		create = 0;
202 		if (!(p->flags & F_VISIT) && uflag) {
203 			if (mtree_Wflag || p->type == F_LINK)
204 				goto createit;
205 			if (!(p->flags & (F_UID | F_UNAME)))
206 			    printf(
207 				" (%s not created: user not specified)", type);
208 			else if (!(p->flags & (F_GID | F_GNAME)))
209 			    printf(
210 				" (%s not created: group not specified)", type);
211 			else if (!(p->flags & F_MODE))
212 			    printf(
213 				" (%s not created: mode not specified)", type);
214 			else
215  createit:
216 			switch (p->type) {
217 			case F_BLOCK:
218 			case F_CHAR:
219 				if (mtree_Wflag)
220 					continue;
221 				if (!(p->flags & F_DEV))
222 					printf(
223 				    " (%s not created: device not specified)",
224 					    type);
225 				else if (mknod(path,
226 				    p->st_mode | nodetoino(p->type),
227 				    p->st_rdev) == -1)
228 					printf(" (%s not created: %s)\n",
229 					    type, strerror(errno));
230 				else
231 					create = 1;
232 				break;
233 			case F_LINK:
234 				if (!(p->flags & F_SLINK))
235 					printf(
236 				    " (%s not created: link not specified)\n",
237 					    type);
238 				else if (symlink(p->slink, path))
239 					printf(
240 					    " (%s not created: %s)\n",
241 					    type, strerror(errno));
242 				else
243 					create = 1;
244 				break;
245 			case F_DIR:
246 				if (mkdir(path, S_IRWXU|S_IRWXG|S_IRWXO))
247 					printf(" (not created: %s)",
248 					    strerror(errno));
249 				else
250 					create = 1;
251 				break;
252 			default:
253 				mtree_err("can't create create %s",
254 				    nodetype(p->type));
255 			}
256 		}
257 		if (create)
258 			printf(" (created)");
259 		if (p->type == F_DIR) {
260 			if (!(p->flags & F_VISIT))
261 				putchar('\n');
262 			for (tp = tail; *tp; ++tp)
263 				continue;
264 			*tp = '/';
265 			miss(p->child, tp + 1);
266 			*tp = '\0';
267 		} else
268 			putchar('\n');
269 
270 		if (!create || mtree_Wflag)
271 			continue;
272 		if ((p->flags & (F_UID | F_UNAME)) &&
273 		    (p->flags & (F_GID | F_GNAME)) &&
274 		    (lchown(path, p->st_uid, p->st_gid))) {
275 			printf("%s: user/group/mode not modified: %s\n",
276 			    path, strerror(errno));
277 			printf("%s: warning: file mode %snot set\n", path,
278 			    (p->flags & F_FLAGS) ? "and file flags " : "");
279 			continue;
280 		}
281 		if (p->flags & F_MODE) {
282 			if (lchmod(path, p->st_mode))
283 				printf("%s: permissions not set: %s\n",
284 				    path, strerror(errno));
285 		}
286 #if HAVE_STRUCT_STAT_ST_FLAGS
287 		if ((p->flags & F_FLAGS) && p->st_flags) {
288 			if (iflag)
289 				flags = p->st_flags;
290 			else
291 				flags = p->st_flags & ~SP_FLGS;
292 			if (lchflags(path, flags))
293 				printf("%s: file flags not set: %s\n",
294 				    path, strerror(errno));
295 		}
296 #endif	/* HAVE_STRUCT_STAT_ST_FLAGS */
297 	}
298 }
299