xref: /netbsd-src/usr.sbin/mtree/compare.c (revision 38023541164cff097d5fadec63134189b1453b8c)
1 /*-
2  * Copyright (c) 1989 The Regents of the University of California.
3  * 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. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 /* from: static char sccsid[] = "@(#)compare.c	5.10 (Berkeley) 3/31/92"; */
36 static char *rcsid = "$Id: compare.c,v 1.5 1993/11/17 11:00:52 cgd Exp $";
37 #endif /* not lint */
38 
39 #include <sys/param.h>
40 #include <sys/stat.h>
41 #include <fcntl.h>
42 #include <fts.h>
43 #include <errno.h>
44 #include <stdio.h>
45 #include <time.h>
46 #include <unistd.h>
47 #include "mtree.h"
48 #include "extern.h"
49 
50 extern int uflag;
51 
52 static char *ftype __P((u_int));
53 
54 #define	INDENTNAMELEN	8
55 #define	LABEL \
56 	if (!label++) { \
57 		len = printf("%s: ", RP(p)); \
58 		if (len > INDENTNAMELEN) { \
59 			tab = "\t"; \
60 			(void)printf("\n"); \
61 		} else { \
62 			tab = ""; \
63 			(void)printf("%*s", INDENTNAMELEN - len, ""); \
64 		} \
65 	}
66 
67 int
68 compare(name, s, p)
69 	char *name;
70 	register NODE *s;
71 	register FTSENT *p;
72 {
73 	extern int uflag;
74 	u_long len, val;
75 	int fd, label;
76 	char *cp, *tab;
77 
78 	label = 0;
79 	switch(s->type) {
80 	case F_BLOCK:
81 		if (!S_ISBLK(p->fts_statp->st_mode))
82 			goto typeerr;
83 		break;
84 	case F_CHAR:
85 		if (!S_ISCHR(p->fts_statp->st_mode))
86 			goto typeerr;
87 		break;
88 	case F_DIR:
89 		if (!S_ISDIR(p->fts_statp->st_mode))
90 			goto typeerr;
91 		break;
92 	case F_FIFO:
93 		if (!S_ISFIFO(p->fts_statp->st_mode))
94 			goto typeerr;
95 		break;
96 	case F_FILE:
97 		if (!S_ISREG(p->fts_statp->st_mode))
98 			goto typeerr;
99 		break;
100 	case F_LINK:
101 		if (!S_ISLNK(p->fts_statp->st_mode))
102 			goto typeerr;
103 		break;
104 	case F_SOCK:
105 		if (!S_ISSOCK(p->fts_statp->st_mode)) {
106 typeerr:		LABEL;
107 			(void)printf("\ttype (%s, %s)\n",
108 			    ftype(s->type), inotype(p->fts_statp->st_mode));
109 		}
110 		break;
111 	}
112 	/* Set the uid/gid first, then set the mode. */
113 	if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
114 		LABEL;
115 		(void)printf("%suser (%u, %u",
116 		    tab, s->st_uid, p->fts_statp->st_uid);
117 		if (uflag)
118 			if (chown(p->fts_accpath, s->st_uid, -1))
119 				(void)printf(", not modified: %s)\n",
120 				    strerror(errno));
121 			else
122 				(void)printf(", modified)\n");
123 		else
124 			(void)printf(")\n");
125 		tab = "\t";
126 	}
127 	if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
128 		LABEL;
129 		(void)printf("%sgid (%u, %u",
130 		    tab, s->st_gid, p->fts_statp->st_gid);
131 		if (uflag)
132 			if (chown(p->fts_accpath, -1, s->st_gid))
133 				(void)printf(", not modified: %s)\n",
134 				    strerror(errno));
135 			else
136 				(void)printf(", modified)\n");
137 		else
138 			(void)printf(")\n");
139 		tab = "\t";
140 	}
141 	if (s->flags & F_MODE &&
142 	    s->st_mode != (p->fts_statp->st_mode & MBITS)) {
143 		LABEL;
144 		(void)printf("%spermissions (%#o, %#o",
145 		    tab, s->st_mode, p->fts_statp->st_mode & MBITS);
146 		if (uflag)
147 			if (chmod(p->fts_accpath, s->st_mode))
148 				(void)printf(", not modified: %s)\n",
149 				    strerror(errno));
150 			else
151 				(void)printf(", modified)\n");
152 		else
153 			(void)printf(")\n");
154 		tab = "\t";
155 	}
156 	if (s->flags & F_NLINK && s->type != F_DIR &&
157 	    s->st_nlink != p->fts_statp->st_nlink) {
158 		LABEL;
159 		(void)printf("%slink count (%u, %u)\n",
160 		    tab, s->st_nlink, p->fts_statp->st_nlink);
161 		tab = "\t";
162 	}
163 	if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) {
164 		LABEL;
165 		(void)printf("%ssize (%ld, %ld)\n",
166 		    tab, s->st_size, p->fts_statp->st_size);
167 		tab = "\t";
168 	}
169 	if (s->flags & F_TIME && s->st_mtime != p->fts_statp->st_mtime) {
170 		LABEL;
171 		(void)printf("%smodification time (%.24s, ",
172 		    tab, ctime(&s->st_mtime));
173 		(void)printf("%.24s)\n", ctime(&p->fts_statp->st_mtime));
174 		tab = "\t";
175 	}
176 	if (s->flags & F_CKSUM)
177 		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
178 			LABEL;
179 			(void)printf("%scksum: %s: %s\n",
180 			    tab, p->fts_accpath, strerror(errno));
181 			tab = "\t";
182 		} else if (crc(fd, &val, &len)) {
183 			(void)close(fd);
184 			LABEL;
185 			(void)printf("%scksum: %s: %s\n",
186 			    tab, p->fts_accpath, strerror(errno));
187 			tab = "\t";
188 		} else {
189 			(void)close(fd);
190 			if (s->cksum != val) {
191 				LABEL;
192 				(void)printf("%scksum (%lu, %lu)\n",
193 				    tab, s->cksum, val);
194 			}
195 			tab = "\t";
196 		}
197 	if (s->flags & F_SLINK && strcmp(cp = rlink(name), s->slink)) {
198 		LABEL;
199 		(void)printf("%slink ref (%s, %s)\n", tab, cp, s->slink);
200 	}
201 	return (label);
202 }
203 
204 char *
205 inotype(type)
206 	u_int type;
207 {
208 	switch(type & S_IFMT) {
209 	case S_IFBLK:
210 		return ("block");
211 	case S_IFCHR:
212 		return ("char");
213 	case S_IFDIR:
214 		return ("dir");
215 	case S_IFIFO:
216 		return ("fifo");
217 	case S_IFREG:
218 		return ("file");
219 	case S_IFLNK:
220 		return ("link");
221 	case S_IFSOCK:
222 		return ("socket");
223 	default:
224 		return ("unknown");
225 	}
226 	/* NOTREACHED */
227 }
228 
229 static char *
230 ftype(type)
231 	u_int type;
232 {
233 	switch(type) {
234 	case F_BLOCK:
235 		return ("block");
236 	case F_CHAR:
237 		return ("char");
238 	case F_DIR:
239 		return ("dir");
240 	case F_FIFO:
241 		return ("fifo");
242 	case F_FILE:
243 		return ("file");
244 	case F_LINK:
245 		return ("link");
246 	case F_SOCK:
247 		return ("socket");
248 	default:
249 		return ("unknown");
250 	}
251 	/* NOTREACHED */
252 }
253 
254 char *
255 rlink(name)
256 	char *name;
257 {
258 	static char lbuf[MAXPATHLEN];
259 	register int len;
260 
261 	if ((len = readlink(name, lbuf, sizeof(lbuf))) == -1)
262 		err("%s: %s", name, strerror(errno));
263 	lbuf[len] = '\0';
264 	return (lbuf);
265 }
266