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
32static 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 WITH_MD5
47#include <md5.h>
48#endif
49#ifdef WITH_RMD160
50#include <ripemd.h>
51#endif
52#ifdef WITH_SHA1
53#include <sha.h>
54#endif
55#ifdef WITH_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
74int
75compare(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)) {
113typeerr:		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 %ju found %ju\n",
169		    tab, (uintmax_t)s->st_nlink,
170		    (uintmax_t)p->fts_statp->st_nlink);
171		tab = "\t";
172	}
173	if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size &&
174		!S_ISDIR(p->fts_statp->st_mode)) {
175		LABEL;
176		(void)printf("%ssize expected %jd found %jd\n", tab,
177		    (intmax_t)s->st_size, (intmax_t)p->fts_statp->st_size);
178		tab = "\t";
179	}
180	/*
181	 * XXX
182	 * Catches nano-second differences, but doesn't display them.
183	 */
184	if ((s->flags & F_TIME) &&
185	     ((s->st_mtimespec.tv_sec != p->fts_statp->st_mtim.tv_sec) ||
186	     (s->st_mtimespec.tv_nsec != p->fts_statp->st_mtim.tv_nsec))) {
187		LABEL;
188		(void)printf("%smodification time expected %.24s ",
189		    tab, ctime(&s->st_mtimespec.tv_sec));
190		(void)printf("found %.24s",
191		    ctime(&p->fts_statp->st_mtim.tv_sec));
192		if (uflag) {
193			tv[0].tv_sec = s->st_mtimespec.tv_sec;
194			tv[0].tv_usec = s->st_mtimespec.tv_nsec / 1000;
195			tv[1] = tv[0];
196			if (utimes(p->fts_accpath, tv))
197				(void)printf(" not modified: %s\n",
198				    strerror(errno));
199			else
200				(void)printf(" modified\n");
201		} else
202			(void)printf("\n");
203		tab = "\t";
204	}
205	if (s->flags & F_CKSUM) {
206		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
207			LABEL;
208			(void)printf("%scksum: %s: %s\n",
209			    tab, p->fts_accpath, strerror(errno));
210			tab = "\t";
211		} else if (crc(fd, &val, &len)) {
212			(void)close(fd);
213			LABEL;
214			(void)printf("%scksum: %s: %s\n",
215			    tab, p->fts_accpath, strerror(errno));
216			tab = "\t";
217		} else {
218			(void)close(fd);
219			if (s->cksum != val) {
220				LABEL;
221				(void)printf("%scksum expected %lu found %lu\n",
222				    tab, s->cksum, (unsigned long)val);
223				tab = "\t";
224			}
225		}
226	}
227	if ((s->flags & F_FLAGS) && s->st_flags != p->fts_statp->st_flags) {
228		LABEL;
229		fflags = flags_to_string(s->st_flags);
230		(void)printf("%sflags expected \"%s\"", tab, fflags);
231		free(fflags);
232
233		fflags = flags_to_string(p->fts_statp->st_flags);
234		(void)printf(" found \"%s\"", fflags);
235		free(fflags);
236
237		if (uflag)
238			if (chflags(p->fts_accpath, s->st_flags))
239				(void)printf(" not modified: %s\n",
240				    strerror(errno));
241			else
242				(void)printf(" modified\n");
243		else
244			(void)printf("\n");
245		tab = "\t";
246	}
247#ifdef WITH_MD5
248	if (s->flags & F_MD5) {
249		char *new_digest, buf[33];
250
251		new_digest = MD5File(p->fts_accpath, buf);
252		if (!new_digest) {
253			LABEL;
254			printf("%sMD5: %s: %s\n", tab, p->fts_accpath,
255			       strerror(errno));
256			tab = "\t";
257		} else if (strcmp(new_digest, s->md5digest)) {
258			LABEL;
259			printf("%sMD5 expected %s found %s\n", tab, s->md5digest,
260			       new_digest);
261			tab = "\t";
262		}
263	}
264#endif /* MD5 */
265#ifdef WITH_SHA1
266	if (s->flags & F_SHA1) {
267		char *new_digest, buf[41];
268
269		new_digest = SHA1_File(p->fts_accpath, buf);
270		if (!new_digest) {
271			LABEL;
272			printf("%sSHA-1: %s: %s\n", tab, p->fts_accpath,
273			       strerror(errno));
274			tab = "\t";
275		} else if (strcmp(new_digest, s->sha1digest)) {
276			LABEL;
277			printf("%sSHA-1 expected %s found %s\n",
278			       tab, s->sha1digest, new_digest);
279			tab = "\t";
280		}
281	}
282#endif /* SHA1 */
283#ifdef WITH_RMD160
284	if (s->flags & F_RMD160) {
285		char *new_digest, buf[41];
286
287		new_digest = RIPEMD160_File(p->fts_accpath, buf);
288		if (!new_digest) {
289			LABEL;
290			printf("%sRIPEMD160: %s: %s\n", tab,
291			       p->fts_accpath, strerror(errno));
292			tab = "\t";
293		} else if (strcmp(new_digest, s->rmd160digest)) {
294			LABEL;
295			printf("%sRIPEMD160 expected %s found %s\n",
296			       tab, s->rmd160digest, new_digest);
297			tab = "\t";
298		}
299	}
300#endif /* RMD160 */
301#ifdef WITH_SHA256
302	if (s->flags & F_SHA256) {
303		char *new_digest, buf[65];
304
305		new_digest = SHA256_File(p->fts_accpath, buf);
306		if (!new_digest) {
307			LABEL;
308			printf("%sSHA-256: %s: %s\n", tab, p->fts_accpath,
309			       strerror(errno));
310			tab = "\t";
311		} else if (strcmp(new_digest, s->sha256digest)) {
312			LABEL;
313			printf("%sSHA-256 expected %s found %s\n",
314			       tab, s->sha256digest, new_digest);
315			tab = "\t";
316		}
317	}
318#endif /* SHA256 */
319
320	if (s->flags & F_SLINK &&
321	    strcmp(cp = rlink(p->fts_accpath), s->slink)) {
322		LABEL;
323		(void)printf("%slink_ref expected %s found %s\n",
324		      tab, s->slink, cp);
325	}
326	return (label);
327}
328
329const char *
330inotype(u_int type)
331{
332	switch(type & S_IFMT) {
333	case S_IFBLK:
334		return ("block");
335	case S_IFCHR:
336		return ("char");
337	case S_IFDIR:
338		return ("dir");
339	case S_IFIFO:
340		return ("fifo");
341	case S_IFREG:
342		return ("file");
343	case S_IFLNK:
344		return ("link");
345	case S_IFSOCK:
346		return ("socket");
347	default:
348		return ("unknown");
349	}
350	/* NOTREACHED */
351}
352
353const char *
354ftype(u_int type)
355{
356	switch(type) {
357	case F_BLOCK:
358		return ("block");
359	case F_CHAR:
360		return ("char");
361	case F_DIR:
362		return ("dir");
363	case F_FIFO:
364		return ("fifo");
365	case F_FILE:
366		return ("file");
367	case F_LINK:
368		return ("link");
369	case F_SOCK:
370		return ("socket");
371	default:
372		return ("unknown");
373	}
374	/* NOTREACHED */
375}
376
377char *
378rlink(char *name)
379{
380	static char lbuf[MAXPATHLEN * 4];
381	int len;
382	char tbuf[MAXPATHLEN];
383
384	if ((len = readlink(name, tbuf, sizeof(tbuf) - 1)) == -1)
385		err(1, "line %d: %s", lineno, name);
386	tbuf[len] = '\0';
387	strvis(lbuf, tbuf, VIS_WHITE | VIS_OCTAL);
388	return (lbuf);
389}
390