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 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
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 %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
328const char *
329inotype(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
352const char *
353ftype(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
376char *
377rlink(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