xref: /NextBSD/usr.sbin/fmtree/compare.c (revision 4557fabb34e865d7f40be64b39c9e34fa41dbb60)
1 /*-
2  * Copyright (c) 1989, 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 
30 #if 0
31 #ifndef lint
32 static char sccsid[] = "@(#)compare.c	8.1 (Berkeley) 6/6/93";
33 #endif /* not lint */
34 #endif
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 #include <sys/param.h>
39 #include <sys/stat.h>
40 #include <sys/time.h>
41 
42 #include <err.h>
43 #include <errno.h>
44 #include <fcntl.h>
45 #include <fts.h>
46 #ifdef MD5
47 #include <md5.h>
48 #endif
49 #ifdef RMD160
50 #include <ripemd.h>
51 #endif
52 #ifdef SHA1
53 #include <sha.h>
54 #endif
55 #ifdef SHA256
56 #include <sha256.h>
57 #endif
58 #include <stdint.h>
59 #include <stdio.h>
60 #include <time.h>
61 #include <unistd.h>
62 #include <vis.h>
63 
64 #include "mtree.h"
65 #include "extern.h"
66 
67 #define	INDENTNAMELEN	8
68 #define	LABEL \
69 	if (!label++) { \
70 		len = printf("%s changed\n", RP(p)); \
71 		tab = "\t"; \
72 	}
73 
74 int
compare(char * name __unused,NODE * s,FTSENT * p)75 compare(char *name __unused, NODE *s, FTSENT *p)
76 {
77 	struct timeval tv[2];
78 	uint32_t val;
79 	int fd, label;
80 	off_t len;
81 	char *cp;
82 	const char *tab = "";
83 	char *fflags;
84 
85 	label = 0;
86 	switch(s->type) {
87 	case F_BLOCK:
88 		if (!S_ISBLK(p->fts_statp->st_mode))
89 			goto typeerr;
90 		break;
91 	case F_CHAR:
92 		if (!S_ISCHR(p->fts_statp->st_mode))
93 			goto typeerr;
94 		break;
95 	case F_DIR:
96 		if (!S_ISDIR(p->fts_statp->st_mode))
97 			goto typeerr;
98 		break;
99 	case F_FIFO:
100 		if (!S_ISFIFO(p->fts_statp->st_mode))
101 			goto typeerr;
102 		break;
103 	case F_FILE:
104 		if (!S_ISREG(p->fts_statp->st_mode))
105 			goto typeerr;
106 		break;
107 	case F_LINK:
108 		if (!S_ISLNK(p->fts_statp->st_mode))
109 			goto typeerr;
110 		break;
111 	case F_SOCK:
112 		if (!S_ISSOCK(p->fts_statp->st_mode)) {
113 typeerr:		LABEL;
114 			(void)printf("\ttype expected %s found %s\n",
115 			    ftype(s->type), inotype(p->fts_statp->st_mode));
116 			return (label);
117 		}
118 		break;
119 	}
120 	/* Set the uid/gid first, then set the mode. */
121 	if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
122 		LABEL;
123 		(void)printf("%suser expected %lu found %lu",
124 		    tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
125 		if (uflag)
126 			if (chown(p->fts_accpath, s->st_uid, -1))
127 				(void)printf(" not modified: %s\n",
128 				    strerror(errno));
129 			else
130 				(void)printf(" modified\n");
131 		else
132 			(void)printf("\n");
133 		tab = "\t";
134 	}
135 	if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
136 		LABEL;
137 		(void)printf("%sgid expected %lu found %lu",
138 		    tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
139 		if (uflag)
140 			if (chown(p->fts_accpath, -1, s->st_gid))
141 				(void)printf(" not modified: %s\n",
142 				    strerror(errno));
143 			else
144 				(void)printf(" modified\n");
145 		else
146 			(void)printf("\n");
147 		tab = "\t";
148 	}
149 	if (s->flags & F_MODE &&
150 	    !S_ISLNK(p->fts_statp->st_mode) &&
151 	    s->st_mode != (p->fts_statp->st_mode & MBITS)) {
152 		LABEL;
153 		(void)printf("%spermissions expected %#o found %#o",
154 		    tab, s->st_mode, p->fts_statp->st_mode & MBITS);
155 		if (uflag)
156 			if (chmod(p->fts_accpath, s->st_mode))
157 				(void)printf(" not modified: %s\n",
158 				    strerror(errno));
159 			else
160 				(void)printf(" modified\n");
161 		else
162 			(void)printf("\n");
163 		tab = "\t";
164 	}
165 	if (s->flags & F_NLINK && s->type != F_DIR &&
166 	    s->st_nlink != p->fts_statp->st_nlink) {
167 		LABEL;
168 		(void)printf("%slink_count expected %u found %u\n",
169 		    tab, s->st_nlink, p->fts_statp->st_nlink);
170 		tab = "\t";
171 	}
172 	if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size &&
173 		!S_ISDIR(p->fts_statp->st_mode)) {
174 		LABEL;
175 		(void)printf("%ssize expected %jd found %jd\n", tab,
176 		    (intmax_t)s->st_size, (intmax_t)p->fts_statp->st_size);
177 		tab = "\t";
178 	}
179 	/*
180 	 * XXX
181 	 * Catches nano-second differences, but doesn't display them.
182 	 */
183 	if ((s->flags & F_TIME) &&
184 	     ((s->st_mtimespec.tv_sec != p->fts_statp->st_mtim.tv_sec) ||
185 	     (s->st_mtimespec.tv_nsec != p->fts_statp->st_mtim.tv_nsec))) {
186 		LABEL;
187 		(void)printf("%smodification time expected %.24s ",
188 		    tab, ctime(&s->st_mtimespec.tv_sec));
189 		(void)printf("found %.24s",
190 		    ctime(&p->fts_statp->st_mtim.tv_sec));
191 		if (uflag) {
192 			tv[0].tv_sec = s->st_mtimespec.tv_sec;
193 			tv[0].tv_usec = s->st_mtimespec.tv_nsec / 1000;
194 			tv[1] = tv[0];
195 			if (utimes(p->fts_accpath, tv))
196 				(void)printf(" not modified: %s\n",
197 				    strerror(errno));
198 			else
199 				(void)printf(" modified\n");
200 		} else
201 			(void)printf("\n");
202 		tab = "\t";
203 	}
204 	if (s->flags & F_CKSUM) {
205 		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
206 			LABEL;
207 			(void)printf("%scksum: %s: %s\n",
208 			    tab, p->fts_accpath, strerror(errno));
209 			tab = "\t";
210 		} else if (crc(fd, &val, &len)) {
211 			(void)close(fd);
212 			LABEL;
213 			(void)printf("%scksum: %s: %s\n",
214 			    tab, p->fts_accpath, strerror(errno));
215 			tab = "\t";
216 		} else {
217 			(void)close(fd);
218 			if (s->cksum != val) {
219 				LABEL;
220 				(void)printf("%scksum expected %lu found %lu\n",
221 				    tab, s->cksum, (unsigned long)val);
222 				tab = "\t";
223 			}
224 		}
225 	}
226 	if ((s->flags & F_FLAGS) && s->st_flags != p->fts_statp->st_flags) {
227 		LABEL;
228 		fflags = flags_to_string(s->st_flags);
229 		(void)printf("%sflags expected \"%s\"", tab, fflags);
230 		free(fflags);
231 
232 		fflags = flags_to_string(p->fts_statp->st_flags);
233 		(void)printf(" found \"%s\"", fflags);
234 		free(fflags);
235 
236 		if (uflag)
237 			if (chflags(p->fts_accpath, s->st_flags))
238 				(void)printf(" not modified: %s\n",
239 				    strerror(errno));
240 			else
241 				(void)printf(" modified\n");
242 		else
243 			(void)printf("\n");
244 		tab = "\t";
245 	}
246 #ifdef MD5
247 	if (s->flags & F_MD5) {
248 		char *new_digest, buf[33];
249 
250 		new_digest = MD5File(p->fts_accpath, buf);
251 		if (!new_digest) {
252 			LABEL;
253 			printf("%sMD5: %s: %s\n", tab, p->fts_accpath,
254 			       strerror(errno));
255 			tab = "\t";
256 		} else if (strcmp(new_digest, s->md5digest)) {
257 			LABEL;
258 			printf("%sMD5 expected %s found %s\n", tab, s->md5digest,
259 			       new_digest);
260 			tab = "\t";
261 		}
262 	}
263 #endif /* MD5 */
264 #ifdef SHA1
265 	if (s->flags & F_SHA1) {
266 		char *new_digest, buf[41];
267 
268 		new_digest = SHA1_File(p->fts_accpath, buf);
269 		if (!new_digest) {
270 			LABEL;
271 			printf("%sSHA-1: %s: %s\n", tab, p->fts_accpath,
272 			       strerror(errno));
273 			tab = "\t";
274 		} else if (strcmp(new_digest, s->sha1digest)) {
275 			LABEL;
276 			printf("%sSHA-1 expected %s found %s\n",
277 			       tab, s->sha1digest, new_digest);
278 			tab = "\t";
279 		}
280 	}
281 #endif /* SHA1 */
282 #ifdef RMD160
283 	if (s->flags & F_RMD160) {
284 		char *new_digest, buf[41];
285 
286 		new_digest = RIPEMD160_File(p->fts_accpath, buf);
287 		if (!new_digest) {
288 			LABEL;
289 			printf("%sRIPEMD160: %s: %s\n", tab,
290 			       p->fts_accpath, strerror(errno));
291 			tab = "\t";
292 		} else if (strcmp(new_digest, s->rmd160digest)) {
293 			LABEL;
294 			printf("%sRIPEMD160 expected %s found %s\n",
295 			       tab, s->rmd160digest, new_digest);
296 			tab = "\t";
297 		}
298 	}
299 #endif /* RMD160 */
300 #ifdef SHA256
301 	if (s->flags & F_SHA256) {
302 		char *new_digest, buf[65];
303 
304 		new_digest = SHA256_File(p->fts_accpath, buf);
305 		if (!new_digest) {
306 			LABEL;
307 			printf("%sSHA-256: %s: %s\n", tab, p->fts_accpath,
308 			       strerror(errno));
309 			tab = "\t";
310 		} else if (strcmp(new_digest, s->sha256digest)) {
311 			LABEL;
312 			printf("%sSHA-256 expected %s found %s\n",
313 			       tab, s->sha256digest, new_digest);
314 			tab = "\t";
315 		}
316 	}
317 #endif /* SHA256 */
318 
319 	if (s->flags & F_SLINK &&
320 	    strcmp(cp = rlink(p->fts_accpath), s->slink)) {
321 		LABEL;
322 		(void)printf("%slink_ref expected %s found %s\n",
323 		      tab, s->slink, cp);
324 	}
325 	return (label);
326 }
327 
328 const char *
inotype(u_int type)329 inotype(u_int type)
330 {
331 	switch(type & S_IFMT) {
332 	case S_IFBLK:
333 		return ("block");
334 	case S_IFCHR:
335 		return ("char");
336 	case S_IFDIR:
337 		return ("dir");
338 	case S_IFIFO:
339 		return ("fifo");
340 	case S_IFREG:
341 		return ("file");
342 	case S_IFLNK:
343 		return ("link");
344 	case S_IFSOCK:
345 		return ("socket");
346 	default:
347 		return ("unknown");
348 	}
349 	/* NOTREACHED */
350 }
351 
352 const char *
ftype(u_int type)353 ftype(u_int type)
354 {
355 	switch(type) {
356 	case F_BLOCK:
357 		return ("block");
358 	case F_CHAR:
359 		return ("char");
360 	case F_DIR:
361 		return ("dir");
362 	case F_FIFO:
363 		return ("fifo");
364 	case F_FILE:
365 		return ("file");
366 	case F_LINK:
367 		return ("link");
368 	case F_SOCK:
369 		return ("socket");
370 	default:
371 		return ("unknown");
372 	}
373 	/* NOTREACHED */
374 }
375 
376 char *
rlink(char * name)377 rlink(char *name)
378 {
379 	static char lbuf[MAXPATHLEN * 4];
380 	int len;
381 	char tbuf[MAXPATHLEN];
382 
383 	if ((len = readlink(name, tbuf, sizeof(tbuf) - 1)) == -1)
384 		err(1, "line %d: %s", lineno, name);
385 	tbuf[len] = '\0';
386 	strvis(lbuf, tbuf, VIS_WHITE | VIS_OCTAL);
387 	return (lbuf);
388 }
389