xref: /dragonfly/usr.sbin/mtree/verify.c (revision 3961d741)
1 /*-
2  * Copyright (c) 1990, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * @(#)verify.c	8.1 (Berkeley) 6/6/93
30  * $FreeBSD: src/usr.sbin/mtree/verify.c,v 1.10.2.2 2001/01/12 19:17:18 phk Exp $
31  */
32 
33 #include <sys/param.h>
34 #include <sys/stat.h>
35 #include <dirent.h>
36 #include <err.h>
37 #include <errno.h>
38 #include <fts.h>
39 #include <fnmatch.h>
40 #include <stdio.h>
41 #include <unistd.h>
42 #include "mtree.h"
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(void)
53 {
54 	int rval;
55 
56 	root = spec();
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], dot[] = ".";
70 
71 	argv[0] = dot;
72 	argv[1] = NULL;
73 	if ((t = fts_open(argv, ftsoptions, NULL)) == NULL)
74 		err(1, "line %d: fts_open", lineno);
75 	level = root;
76 	specdepth = rval = 0;
77 	while ((p = fts_read(t))) {
78 		if (check_excludes(p->fts_name, p->fts_path)) {
79 			fts_set(t, p, FTS_SKIP);
80 			continue;
81 		}
82 		switch(p->fts_info) {
83 		case FTS_D:
84 		case FTS_SL:
85 			break;
86 		case FTS_DP:
87 			if (specdepth > p->fts_level) {
88 				for (level = level->parent; level->prev;
89 				      level = level->prev);
90 				--specdepth;
91 			}
92 			continue;
93 		case FTS_DNR:
94 		case FTS_ERR:
95 		case FTS_NS:
96 			warnx("%s: %s", RP(p), strerror(p->fts_errno));
97 			continue;
98 		default:
99 			if (dflag)
100 				continue;
101 		}
102 
103 		if (specdepth != p->fts_level)
104 			goto extra;
105 		for (ep = level; ep; ep = ep->next)
106 			if ((ep->flags & F_MAGIC &&
107 			    !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
108 			    !strcmp(ep->name, p->fts_name)) {
109 				ep->flags |= F_VISIT;
110 				if ((ep->flags & F_NOCHANGE) == 0 &&
111 				    compare(ep, p))
112 					rval = MISMATCHEXIT;
113 				if (ep->flags & F_IGN)
114 					fts_set(t, p, FTS_SKIP);
115 				else if (ep->child && ep->type == F_DIR &&
116 				    p->fts_info == FTS_D) {
117 					level = ep->child;
118 					++specdepth;
119 				}
120 				break;
121 			}
122 
123 		if (ep)
124 			continue;
125 extra:
126 		if (!eflag) {
127 			printf("%s extra", RP(p));
128 			if (rflag) {
129 				if ((S_ISDIR(p->fts_statp->st_mode)
130 				    ? rmdir : unlink)(p->fts_accpath)) {
131 					printf(", not removed: %s",
132 					    strerror(errno));
133 				} else
134 					printf(", removed");
135 			}
136 			putchar('\n');
137 		}
138 		fts_set(t, p, FTS_SKIP);
139 	}
140 	fts_close(t);
141 	if (sflag)
142 		warnx("%s checksum: %u", fullpath, crc_total);
143 	return (rval);
144 }
145 
146 static void
147 miss(NODE *p, char *tail)
148 {
149 	int create;
150 	char *tp;
151 	const char *type;
152 
153 	for (; p; p = p->next) {
154 		if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
155 			continue;
156 		strcpy(tail, p->name);
157 		if (!(p->flags & F_VISIT)) {
158 			/* Don't print missing message if file exists as a
159 			   symbolic link and the -q flag is set. */
160 			struct stat statbuf;
161 
162 			if (qflag && stat(path, &statbuf) == 0)
163 				p->flags |= F_VISIT;
164 			else
165 				printf("%s missing", path);
166 		}
167 		if (p->type != F_DIR && p->type != F_LINK) {
168 			putchar('\n');
169 			continue;
170 		}
171 
172 		create = 0;
173 		if (p->type == F_LINK)
174 			type = "symlink";
175 		else
176 			type = "directory";
177 		if (!(p->flags & F_VISIT) && uflag) {
178 			if (!(p->flags & (F_UID | F_UNAME)))
179 				printf(" (%s not created: user not specified)", type);
180 			else if (!(p->flags & (F_GID | F_GNAME)))
181 				printf(" (%s not created: group not specified)", type);
182 			else if (p->type == F_LINK) {
183 				if (symlink(p->slink, path))
184 					printf(" (symlink not created: %s)\n",
185 					    strerror(errno));
186 				else
187 					printf(" (created)\n");
188 				if (lchown(path, p->st_uid, p->st_gid))
189 					printf("%s: user/group not modified: %s\n",
190 					    path, strerror(errno));
191 				continue;
192 			} else if (!(p->flags & F_MODE))
193 			    printf(" (directory not created: mode not specified)");
194 			else if (mkdir(path, S_IRWXU))
195 				printf(" (directory not created: %s)",
196 				    strerror(errno));
197 			else {
198 				create = 1;
199 				printf(" (created)");
200 			}
201 		}
202 		if (!(p->flags & F_VISIT))
203 			putchar('\n');
204 
205 		for (tp = tail; *tp; ++tp);
206 		*tp = '/';
207 		miss(p->child, tp + 1);
208 		*tp = '\0';
209 
210 		if (!create)
211 			continue;
212 		if (chown(path, p->st_uid, p->st_gid)) {
213 			printf("%s: user/group/mode not modified: %s\n",
214 			    path, strerror(errno));
215 			printf("%s: warning: file mode %snot set\n", path,
216 			    (p->flags & F_FLAGS) ? "and file flags " : "");
217 			continue;
218 		}
219 		if (chmod(path, p->st_mode))
220 			printf("%s: permissions not set: %s\n",
221 			    path, strerror(errno));
222 		if ((p->flags & F_FLAGS) && p->st_flags &&
223 		    chflags(path, p->st_flags))
224 			printf("%s: file flags not set: %s\n",
225 			    path, strerror(errno));
226 	}
227 }
228