compare.c revision 1.50 1 /* $NetBSD: compare.c,v 1.50 2006/12/14 20:21:47 he Exp $ */
2
3 /*-
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #if HAVE_NBTOOL_CONFIG_H
33 #include "nbtool_config.h"
34 #endif
35
36 #include <sys/cdefs.h>
37 #if defined(__RCSID) && !defined(lint)
38 #if 0
39 static char sccsid[] = "@(#)compare.c 8.1 (Berkeley) 6/6/93";
40 #else
41 __RCSID("$NetBSD: compare.c,v 1.50 2006/12/14 20:21:47 he Exp $");
42 #endif
43 #endif /* not lint */
44
45 #include <sys/param.h>
46
47 #include <errno.h>
48 #include <fcntl.h>
49 #include <stdio.h>
50 #include <stdlib.h>
51 #include <string.h>
52 #include <time.h>
53 #include <unistd.h>
54
55 #ifndef NO_MD5
56 #include <md5.h>
57 #endif
58 #ifndef NO_RMD160
59 #include <rmd160.h>
60 #endif
61 #ifndef NO_SHA1
62 #include <sha1.h>
63 #endif
64 #ifndef NO_SHA2
65 #include <sha2.h>
66 #endif
67
68 #include "extern.h"
69
70 #define INDENTNAMELEN 8
71 #define MARK \
72 do { \
73 len = printf("%s: ", RP(p)); \
74 if (len > INDENTNAMELEN) { \
75 tab = "\t"; \
76 printf("\n"); \
77 } else { \
78 tab = ""; \
79 printf("%*s", INDENTNAMELEN - (int)len, ""); \
80 } \
81 } while (0)
82 #define LABEL if (!label++) MARK
83
84 #if HAVE_STRUCT_STAT_ST_FLAGS
85
86
87 #define CHANGEFLAGS \
88 if (flags != p->fts_statp->st_flags) { \
89 char *sf; \
90 if (!label) { \
91 MARK; \
92 sf = flags_to_string(p->fts_statp->st_flags, "none"); \
93 printf("%sflags (\"%s\"", tab, sf); \
94 free(sf); \
95 } \
96 if (lchflags(p->fts_accpath, flags)) { \
97 label++; \
98 printf(", not modified: %s)\n", \
99 strerror(errno)); \
100 } else { \
101 sf = flags_to_string(flags, "none"); \
102 printf(", modified to \"%s\")\n", sf); \
103 free(sf); \
104 } \
105 }
106
107 /* SETFLAGS:
108 * given pflags, additionally set those flags specified in s->st_flags and
109 * selected by mask (the other flags are left unchanged).
110 */
111 #define SETFLAGS(pflags, mask) \
112 do { \
113 flags = (s->st_flags & (mask)) | (pflags); \
114 CHANGEFLAGS; \
115 } while (0)
116
117 /* CLEARFLAGS:
118 * given pflags, reset the flags specified in s->st_flags and selected by mask
119 * (the other flags are left unchanged).
120 */
121 #define CLEARFLAGS(pflags, mask) \
122 do { \
123 flags = (~(s->st_flags & (mask)) & CH_MASK) & (pflags); \
124 CHANGEFLAGS; \
125 } while (0)
126 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
127
128 int
129 compare(NODE *s, FTSENT *p)
130 {
131 u_int32_t len, val, flags;
132 int fd, label;
133 const char *cp, *tab;
134 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) || !defined(NO_SHA2)
135 char digestbuf[MAXHASHLEN + 1];
136 #endif
137
138 tab = NULL;
139 label = 0;
140 switch(s->type) {
141 case F_BLOCK:
142 if (!S_ISBLK(p->fts_statp->st_mode))
143 goto typeerr;
144 break;
145 case F_CHAR:
146 if (!S_ISCHR(p->fts_statp->st_mode))
147 goto typeerr;
148 break;
149 case F_DIR:
150 if (!S_ISDIR(p->fts_statp->st_mode))
151 goto typeerr;
152 break;
153 case F_FIFO:
154 if (!S_ISFIFO(p->fts_statp->st_mode))
155 goto typeerr;
156 break;
157 case F_FILE:
158 if (!S_ISREG(p->fts_statp->st_mode))
159 goto typeerr;
160 break;
161 case F_LINK:
162 if (!S_ISLNK(p->fts_statp->st_mode))
163 goto typeerr;
164 break;
165 #ifdef S_ISSOCK
166 case F_SOCK:
167 if (!S_ISSOCK(p->fts_statp->st_mode))
168 goto typeerr;
169 break;
170 #endif
171 typeerr: LABEL;
172 printf("\ttype (%s, %s)\n",
173 nodetype(s->type), inotype(p->fts_statp->st_mode));
174 return (label);
175 }
176 if (mtree_Wflag)
177 goto afterpermwhack;
178 #if HAVE_STRUCT_STAT_ST_FLAGS
179 if (iflag && !uflag) {
180 if (s->flags & F_FLAGS)
181 SETFLAGS(p->fts_statp->st_flags, SP_FLGS);
182 return (label);
183 }
184 if (mflag && !uflag) {
185 if (s->flags & F_FLAGS)
186 CLEARFLAGS(p->fts_statp->st_flags, SP_FLGS);
187 return (label);
188 }
189 #endif
190 if (s->flags & F_DEV &&
191 (s->type == F_BLOCK || s->type == F_CHAR) &&
192 s->st_rdev != p->fts_statp->st_rdev) {
193 LABEL;
194 printf("%sdevice (%#x, %#x",
195 tab, s->st_rdev, p->fts_statp->st_rdev);
196 if (uflag) {
197 if ((unlink(p->fts_accpath) == -1) ||
198 (mknod(p->fts_accpath,
199 s->st_mode | nodetoino(s->type),
200 s->st_rdev) == -1) ||
201 (lchown(p->fts_accpath, p->fts_statp->st_uid,
202 p->fts_statp->st_gid) == -1) )
203 printf(", not modified: %s)\n",
204 strerror(errno));
205 else
206 printf(", modified)\n");
207 } else
208 printf(")\n");
209 tab = "\t";
210 }
211 /* Set the uid/gid first, then set the mode. */
212 if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
213 LABEL;
214 printf("%suser (%lu, %lu",
215 tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
216 if (uflag) {
217 if (lchown(p->fts_accpath, s->st_uid, -1))
218 printf(", not modified: %s)\n",
219 strerror(errno));
220 else
221 printf(", modified)\n");
222 } else
223 printf(")\n");
224 tab = "\t";
225 }
226 if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
227 LABEL;
228 printf("%sgid (%lu, %lu",
229 tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
230 if (uflag) {
231 if (lchown(p->fts_accpath, -1, s->st_gid))
232 printf(", not modified: %s)\n",
233 strerror(errno));
234 else
235 printf(", modified)\n");
236 }
237 else
238 printf(")\n");
239 tab = "\t";
240 }
241 if (s->flags & F_MODE &&
242 s->st_mode != (p->fts_statp->st_mode & MBITS)) {
243 if (lflag) {
244 mode_t tmode, mode;
245
246 tmode = s->st_mode;
247 mode = p->fts_statp->st_mode & MBITS;
248 /*
249 * if none of the suid/sgid/etc bits are set,
250 * then if the mode is a subset of the target,
251 * skip.
252 */
253 if (!((tmode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) ||
254 (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO))))
255 if ((mode | tmode) == tmode)
256 goto skip;
257 }
258
259 LABEL;
260 printf("%spermissions (%#lo, %#lo",
261 tab, (u_long)s->st_mode,
262 (u_long)p->fts_statp->st_mode & MBITS);
263 if (uflag) {
264 if (lchmod(p->fts_accpath, s->st_mode))
265 printf(", not modified: %s)\n",
266 strerror(errno));
267 else
268 printf(", modified)\n");
269 }
270 else
271 printf(")\n");
272 tab = "\t";
273 skip: ;
274 }
275 if (s->flags & F_NLINK && s->type != F_DIR &&
276 s->st_nlink != p->fts_statp->st_nlink) {
277 LABEL;
278 printf("%slink count (%lu, %lu)\n",
279 tab, (u_long)s->st_nlink, (u_long)p->fts_statp->st_nlink);
280 tab = "\t";
281 }
282 if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) {
283 LABEL;
284 printf("%ssize (%lld, %lld)\n",
285 tab, (long long)s->st_size,
286 (long long)p->fts_statp->st_size);
287 tab = "\t";
288 }
289 /*
290 * XXX
291 * Since utimes(2) only takes a timeval, there's no point in
292 * comparing the low bits of the timespec nanosecond field. This
293 * will only result in mismatches that we can never fix.
294 *
295 * Doesn't display microsecond differences.
296 */
297 if (s->flags & F_TIME) {
298 struct timeval tv[2];
299 struct stat *ps = p->fts_statp;
300 time_t smtime = s->st_mtimespec.tv_sec;
301
302 #if defined(BSD4_4) && !defined(HAVE_NBTOOL_CONFIG_H)
303 time_t pmtime = ps->st_mtimespec.tv_sec;
304
305 TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec);
306 TIMESPEC_TO_TIMEVAL(&tv[1], &ps->st_mtimespec);
307 #else
308 time_t pmtime = (time_t)ps->st_mtime;
309
310 tv[0].tv_sec = smtime;
311 tv[0].tv_usec = 0;
312 tv[1].tv_sec = pmtime;
313 tv[1].tv_usec = 0;
314 #endif
315
316 if (tv[0].tv_sec != tv[1].tv_sec ||
317 tv[0].tv_usec != tv[1].tv_usec) {
318 LABEL;
319 printf("%smodification time (%.24s, ",
320 tab, ctime(&smtime));
321 printf("%.24s", ctime(&pmtime));
322 if (tflag) {
323 tv[1] = tv[0];
324 if (utimes(p->fts_accpath, tv))
325 printf(", not modified: %s)\n",
326 strerror(errno));
327 else
328 printf(", modified)\n");
329 } else
330 printf(")\n");
331 tab = "\t";
332 }
333 }
334 #if HAVE_STRUCT_STAT_ST_FLAGS
335 /*
336 * XXX
337 * since lchflags(2) will reset file times, the utimes() above
338 * may have been useless! oh well, we'd rather have correct
339 * flags, rather than times?
340 */
341 if ((s->flags & F_FLAGS) && ((s->st_flags != p->fts_statp->st_flags)
342 || mflag || iflag)) {
343 if (s->st_flags != p->fts_statp->st_flags) {
344 char *f_s;
345 LABEL;
346 f_s = flags_to_string(s->st_flags, "none");
347 printf("%sflags (\"%s\" is not ", tab, f_s);
348 free(f_s);
349 f_s = flags_to_string(p->fts_statp->st_flags, "none");
350 printf("\"%s\"", f_s);
351 free(f_s);
352 }
353 if (uflag) {
354 if (iflag)
355 SETFLAGS(0, CH_MASK);
356 else if (mflag)
357 CLEARFLAGS(0, SP_FLGS);
358 else
359 SETFLAGS(0, (~SP_FLGS & CH_MASK));
360 } else
361 printf(")\n");
362 tab = "\t";
363 }
364 #endif /* HAVE_STRUCT_STAT_ST_FLAGS */
365
366 /*
367 * from this point, no more permission checking or whacking
368 * occurs, only checking of stuff like checksums and symlinks.
369 */
370 afterpermwhack:
371 if (s->flags & F_CKSUM) {
372 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
373 LABEL;
374 printf("%scksum: %s: %s\n",
375 tab, p->fts_accpath, strerror(errno));
376 tab = "\t";
377 } else if (crc(fd, &val, &len)) {
378 close(fd);
379 LABEL;
380 printf("%scksum: %s: %s\n",
381 tab, p->fts_accpath, strerror(errno));
382 tab = "\t";
383 } else {
384 close(fd);
385 if (s->cksum != val) {
386 LABEL;
387 printf("%scksum (%lu, %lu)\n",
388 tab, s->cksum, (unsigned long)val);
389 }
390 tab = "\t";
391 }
392 }
393 #ifndef NO_MD5
394 if (s->flags & F_MD5) {
395 if (MD5File(p->fts_accpath, digestbuf) == NULL) {
396 LABEL;
397 printf("%smd5: %s: %s\n",
398 tab, p->fts_accpath, strerror(errno));
399 tab = "\t";
400 } else {
401 if (strcmp(s->md5digest, digestbuf)) {
402 LABEL;
403 printf("%smd5 (0x%s, 0x%s)\n",
404 tab, s->md5digest, digestbuf);
405 }
406 tab = "\t";
407 }
408 }
409 #endif /* ! NO_MD5 */
410 #ifndef NO_RMD160
411 if (s->flags & F_RMD160) {
412 if (RMD160File(p->fts_accpath, digestbuf) == NULL) {
413 LABEL;
414 printf("%srmd160: %s: %s\n",
415 tab, p->fts_accpath, strerror(errno));
416 tab = "\t";
417 } else {
418 if (strcmp(s->rmd160digest, digestbuf)) {
419 LABEL;
420 printf("%srmd160 (0x%s, 0x%s)\n",
421 tab, s->rmd160digest, digestbuf);
422 }
423 tab = "\t";
424 }
425 }
426 #endif /* ! NO_RMD160 */
427 #ifndef NO_SHA1
428 if (s->flags & F_SHA1) {
429 if (SHA1File(p->fts_accpath, digestbuf) == NULL) {
430 LABEL;
431 printf("%ssha1: %s: %s\n",
432 tab, p->fts_accpath, strerror(errno));
433 tab = "\t";
434 } else {
435 if (strcmp(s->sha1digest, digestbuf)) {
436 LABEL;
437 printf("%ssha1 (0x%s, 0x%s)\n",
438 tab, s->sha1digest, digestbuf);
439 }
440 tab = "\t";
441 }
442 }
443 #endif /* ! NO_SHA1 */
444 #ifndef NO_SHA2
445 if (s->flags & F_SHA256) {
446 if (SHA256_File(p->fts_accpath, digestbuf) == NULL) {
447 LABEL;
448 printf("%ssha256: %s: %s\n",
449 tab, p->fts_accpath, strerror(errno));
450 tab = "\t";
451 } else {
452 if (strcmp(s->sha256digest, digestbuf)) {
453 LABEL;
454 printf("%ssha256 (0x%s, 0x%s)\n",
455 tab, s->sha256digest, digestbuf);
456 }
457 tab = "\t";
458 }
459 }
460 if (s->flags & F_SHA384) {
461 if (SHA384_File(p->fts_accpath, digestbuf) == NULL) {
462 LABEL;
463 printf("%ssha384: %s: %s\n",
464 tab, p->fts_accpath, strerror(errno));
465 tab = "\t";
466 } else {
467 if (strcmp(s->sha384digest, digestbuf)) {
468 LABEL;
469 printf("%ssha384 (0x%s, 0x%s)\n",
470 tab, s->sha384digest, digestbuf);
471 }
472 tab = "\t";
473 }
474 }
475 if (s->flags & F_SHA512) {
476 if (SHA512_File(p->fts_accpath, digestbuf) == NULL) {
477 LABEL;
478 printf("%ssha512: %s: %s\n",
479 tab, p->fts_accpath, strerror(errno));
480 tab = "\t";
481 } else {
482 if (strcmp(s->sha512digest, digestbuf)) {
483 LABEL;
484 printf("%ssha512 (0x%s, 0x%s)\n",
485 tab, s->sha512digest, digestbuf);
486 }
487 tab = "\t";
488 }
489 }
490 #endif /* ! NO_SHA2 */
491 if (s->flags & F_SLINK &&
492 strcmp(cp = rlink(p->fts_accpath), s->slink)) {
493 LABEL;
494 printf("%slink ref (%s, %s", tab, cp, s->slink);
495 if (uflag) {
496 if ((unlink(p->fts_accpath) == -1) ||
497 (symlink(s->slink, p->fts_accpath) == -1) )
498 printf(", not modified: %s)\n",
499 strerror(errno));
500 else
501 printf(", modified)\n");
502 } else
503 printf(")\n");
504 }
505 return (label);
506 }
507
508 const char *
509 rlink(const char *name)
510 {
511 static char lbuf[MAXPATHLEN];
512 int len;
513
514 if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1)
515 mtree_err("%s: %s", name, strerror(errno));
516 lbuf[len] = '\0';
517 return (lbuf);
518 }
519