compare.c revision 1.37
1 /* $NetBSD: compare.c,v 1.37 2002/01/29 00:07:27 tv 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)compare.c 8.1 (Berkeley) 6/6/93"; 40 #else 41 __RCSID("$NetBSD: compare.c,v 1.37 2002/01/29 00:07:27 tv 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 <string.h> 51 #include <time.h> 52 #include <unistd.h> 53 54 #ifndef NO_MD5 55 #include <md5.h> 56 #endif 57 #ifndef NO_RMD160 58 #include <rmd160.h> 59 #endif 60 #ifndef NO_SHA1 61 #include <sha1.h> 62 #endif 63 64 #include "extern.h" 65 66 #define INDENTNAMELEN 8 67 #define MARK \ 68 do { \ 69 len = printf("%s: ", RP(p)); \ 70 if (len > INDENTNAMELEN) { \ 71 tab = "\t"; \ 72 printf("\n"); \ 73 } else { \ 74 tab = ""; \ 75 printf("%*s", INDENTNAMELEN - (int)len, ""); \ 76 } \ 77 } while (0) 78 #define LABEL if (!label++) MARK 79 80 #define CHANGEFLAGS(path, oflags) \ 81 if (flags != (oflags)) { \ 82 if (!label) { \ 83 MARK; \ 84 printf("%sflags (\"%s\"", tab, \ 85 flags_to_string(p->fts_statp->st_flags, "none")); \ 86 } \ 87 if (chflags(path, flags)) { \ 88 label++; \ 89 printf(", not modified: %s)\n", \ 90 strerror(errno)); \ 91 } else \ 92 printf(", modified to \"%s\")\n", \ 93 flags_to_string(flags, "none")); \ 94 } 95 96 /* SETFLAGS: 97 * given pflags, additionally set those flags specified in sflags and 98 * selected by mask (the other flags are left unchanged). oflags is 99 * passed as reference to check if chflags is necessary. 100 */ 101 #define SETFLAGS(path, sflags, pflags, oflags, mask) \ 102 do { \ 103 flags = ((sflags) & (mask)) | (pflags); \ 104 CHANGEFLAGS(path, oflags); \ 105 } while (0) 106 107 /* CLEARFLAGS: 108 * given pflags, reset the flags specified in sflags and selected by mask 109 * (the other flags are left unchanged). oflags is 110 * passed as reference to check if chflags is necessary. 111 */ 112 #define CLEARFLAGS(path, sflags, pflags, oflags, mask) \ 113 do { \ 114 flags = (~((sflags) & (mask)) & CH_MASK) & (pflags); \ 115 CHANGEFLAGS(path, oflags); \ 116 } while (0) 117 118 int 119 compare(NODE *s, FTSENT *p) 120 { 121 u_int32_t len, val, flags; 122 int fd, label; 123 const char *cp, *tab; 124 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) 125 char digestbuf[41]; /* large enough for {MD5,RMD160,SHA1}File() */ 126 #endif 127 128 tab = NULL; 129 label = 0; 130 switch(s->type) { 131 case F_BLOCK: 132 if (!S_ISBLK(p->fts_statp->st_mode)) 133 goto typeerr; 134 break; 135 case F_CHAR: 136 if (!S_ISCHR(p->fts_statp->st_mode)) 137 goto typeerr; 138 break; 139 case F_DIR: 140 if (!S_ISDIR(p->fts_statp->st_mode)) 141 goto typeerr; 142 break; 143 case F_FIFO: 144 if (!S_ISFIFO(p->fts_statp->st_mode)) 145 goto typeerr; 146 break; 147 case F_FILE: 148 if (!S_ISREG(p->fts_statp->st_mode)) 149 goto typeerr; 150 break; 151 case F_LINK: 152 if (!S_ISLNK(p->fts_statp->st_mode)) 153 goto typeerr; 154 break; 155 case F_SOCK: 156 if (!S_ISSOCK(p->fts_statp->st_mode)) { 157 typeerr: LABEL; 158 printf("\ttype (%s, %s)\n", 159 nodetype(s->type), inotype(p->fts_statp->st_mode)); 160 return (label); 161 } 162 break; 163 } 164 if (Wflag) 165 goto afterpermwhack; 166 #if HAVE_STRUCT_STAT_ST_FLAGS 167 if (iflag && !uflag) { 168 if (s->flags & F_FLAGS) 169 SETFLAGS(p->fts_accpath, s->st_flags, 170 p->fts_statp->st_flags, p->fts_statp->st_flags, 171 SP_FLGS); 172 return (label); 173 } 174 if (mflag && !uflag) { 175 if (s->flags & F_FLAGS) 176 CLEARFLAGS(p->fts_accpath, s->st_flags, 177 p->fts_statp->st_flags, p->fts_statp->st_flags, 178 SP_FLGS); 179 return (label); 180 } 181 #endif 182 if (s->flags & F_DEV && 183 (s->type == F_BLOCK || s->type == F_CHAR) && 184 s->st_rdev != p->fts_statp->st_rdev) { 185 LABEL; 186 printf("%sdevice (%#x, %#x", 187 tab, s->st_rdev, p->fts_statp->st_rdev); 188 if (uflag) { 189 if ((unlink(p->fts_accpath) == -1) || 190 (mknod(p->fts_accpath, 191 s->st_mode | nodetoino(s->type), 192 s->st_rdev) == -1) || 193 (chown(p->fts_accpath, p->fts_statp->st_uid, 194 p->fts_statp->st_gid) == -1) ) 195 printf(", not modified: %s)\n", 196 strerror(errno)); 197 else 198 printf(", modified)\n"); 199 } else 200 printf(")\n"); 201 tab = "\t"; 202 } 203 /* Set the uid/gid first, then set the mode. */ 204 if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) { 205 LABEL; 206 printf("%suser (%lu, %lu", 207 tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid); 208 if (uflag) { 209 if (chown(p->fts_accpath, s->st_uid, -1)) 210 printf(", not modified: %s)\n", 211 strerror(errno)); 212 else 213 printf(", modified)\n"); 214 } else 215 printf(")\n"); 216 tab = "\t"; 217 } 218 if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) { 219 LABEL; 220 printf("%sgid (%lu, %lu", 221 tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid); 222 if (uflag) { 223 if (chown(p->fts_accpath, -1, s->st_gid)) 224 printf(", not modified: %s)\n", 225 strerror(errno)); 226 else 227 printf(", modified)\n"); 228 } 229 else 230 printf(")\n"); 231 tab = "\t"; 232 } 233 if (s->flags & F_MODE && 234 s->st_mode != (p->fts_statp->st_mode & MBITS)) { 235 if (lflag) { 236 mode_t tmode, mode; 237 238 tmode = s->st_mode; 239 mode = p->fts_statp->st_mode & MBITS; 240 /* 241 * if none of the suid/sgid/etc bits are set, 242 * then if the mode is a subset of the target, 243 * skip. 244 */ 245 if (!((tmode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) || 246 (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO)))) 247 if ((mode | tmode) == tmode) 248 goto skip; 249 } 250 251 LABEL; 252 printf("%spermissions (%#lo, %#lo", 253 tab, (u_long)s->st_mode, 254 (u_long)p->fts_statp->st_mode & MBITS); 255 if (uflag) { 256 if (chmod(p->fts_accpath, s->st_mode)) 257 printf(", not modified: %s)\n", 258 strerror(errno)); 259 else 260 printf(", modified)\n"); 261 } 262 else 263 printf(")\n"); 264 tab = "\t"; 265 skip: ; 266 } 267 if (s->flags & F_NLINK && s->type != F_DIR && 268 s->st_nlink != p->fts_statp->st_nlink) { 269 LABEL; 270 printf("%slink count (%lu, %lu)\n", 271 tab, (u_long)s->st_nlink, (u_long)p->fts_statp->st_nlink); 272 tab = "\t"; 273 } 274 if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) { 275 LABEL; 276 printf("%ssize (%lld, %lld)\n", 277 tab, (long long)s->st_size, 278 (long long)p->fts_statp->st_size); 279 tab = "\t"; 280 } 281 /* 282 * XXX 283 * Since utimes(2) only takes a timeval, there's no point in 284 * comparing the low bits of the timespec nanosecond field. This 285 * will only result in mismatches that we can never fix. 286 * 287 * Doesn't display microsecond differences. 288 */ 289 if (s->flags & F_TIME) { 290 struct timeval tv[2]; 291 struct stat *ps = p->fts_statp; 292 time_t smtime = s->st_mtimespec.tv_sec; 293 294 #ifdef BSD4_4 295 time_t pmtime = ps->st_mtimespec.tv_sec; 296 297 TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec); 298 TIMESPEC_TO_TIMEVAL(&tv[1], &ps->st_mtimespec); 299 #else 300 time_t pmtime = (time_t)ps->st_mtime; 301 302 tv[0].tv_sec = smtime; 303 tv[0].tv_usec = 0; 304 tv[1].tv_sec = pmtime; 305 tv[1].tv_usec = 0; 306 #endif 307 308 if (tv[0].tv_sec != tv[1].tv_sec || 309 tv[0].tv_usec != tv[1].tv_usec) { 310 LABEL; 311 printf("%smodification time (%.24s, ", 312 tab, ctime(&smtime)); 313 printf("%.24s", ctime(&pmtime)); 314 if (tflag) { 315 tv[1] = tv[0]; 316 if (utimes(p->fts_accpath, tv)) 317 printf(", not modified: %s)\n", 318 strerror(errno)); 319 else 320 printf(", modified)\n"); 321 } else 322 printf(")\n"); 323 tab = "\t"; 324 } 325 } 326 #if HAVE_STRUCT_STAT_ST_FLAGS 327 /* 328 * XXX 329 * since chflags(2) will reset file times, the utimes() above 330 * may have been useless! oh well, we'd rather have correct 331 * flags, rather than times? 332 */ 333 if ((s->flags & F_FLAGS) && ((s->st_flags != p->fts_statp->st_flags) 334 || mflag || iflag)) { 335 if (s->st_flags != p->fts_statp->st_flags) { 336 LABEL; 337 printf("%sflags (\"%s\" is not ", tab, 338 flags_to_string(s->st_flags, "none")); 339 printf("\"%s\"", 340 flags_to_string(p->fts_statp->st_flags, "none")); 341 } 342 if (uflag) { 343 if (iflag) 344 SETFLAGS(p->fts_accpath, s->st_flags, 345 0, p->fts_statp->st_flags, CH_MASK); 346 else if (mflag) 347 CLEARFLAGS(p->fts_accpath, s->st_flags, 348 0, p->fts_statp->st_flags, SP_FLGS); 349 else 350 SETFLAGS(p->fts_accpath, s->st_flags, 351 0, p->fts_statp->st_flags, 352 (~SP_FLGS & CH_MASK)); 353 } else 354 printf(")\n"); 355 tab = "\t"; 356 } 357 #endif 358 359 /* 360 * from this point, no more permission checking or whacking 361 * occurs, only checking of stuff like checksums and symlinks. 362 */ 363 afterpermwhack: 364 if (s->flags & F_CKSUM) { 365 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) { 366 LABEL; 367 printf("%scksum: %s: %s\n", 368 tab, p->fts_accpath, strerror(errno)); 369 tab = "\t"; 370 } else if (crc(fd, &val, &len)) { 371 close(fd); 372 LABEL; 373 printf("%scksum: %s: %s\n", 374 tab, p->fts_accpath, strerror(errno)); 375 tab = "\t"; 376 } else { 377 close(fd); 378 if (s->cksum != val) { 379 LABEL; 380 printf("%scksum (%lu, %lu)\n", 381 tab, s->cksum, (unsigned long)val); 382 } 383 tab = "\t"; 384 } 385 } 386 #ifndef NO_MD5 387 if (s->flags & F_MD5) { 388 if (MD5File(p->fts_accpath, digestbuf) == NULL) { 389 LABEL; 390 printf("%smd5: %s: %s\n", 391 tab, p->fts_accpath, strerror(errno)); 392 tab = "\t"; 393 } else { 394 if (strcmp(s->md5digest, digestbuf)) { 395 LABEL; 396 printf("%smd5 (0x%s, 0x%s)\n", 397 tab, s->md5digest, digestbuf); 398 } 399 tab = "\t"; 400 } 401 } 402 #endif /* ! NO_MD5 */ 403 #ifndef NO_RMD160 404 if (s->flags & F_RMD160) { 405 if (RMD160File(p->fts_accpath, digestbuf) == NULL) { 406 LABEL; 407 printf("%srmd160: %s: %s\n", 408 tab, p->fts_accpath, strerror(errno)); 409 tab = "\t"; 410 } else { 411 if (strcmp(s->rmd160digest, digestbuf)) { 412 LABEL; 413 printf("%srmd160 (0x%s, 0x%s)\n", 414 tab, s->rmd160digest, digestbuf); 415 } 416 tab = "\t"; 417 } 418 } 419 #endif /* ! NO_RMD160 */ 420 #ifndef NO_SHA1 421 if (s->flags & F_SHA1) { 422 if (SHA1File(p->fts_accpath, digestbuf) == NULL) { 423 LABEL; 424 printf("%ssha1: %s: %s\n", 425 tab, p->fts_accpath, strerror(errno)); 426 tab = "\t"; 427 } else { 428 if (strcmp(s->sha1digest, digestbuf)) { 429 LABEL; 430 printf("%ssha1 (0x%s, 0x%s)\n", 431 tab, s->sha1digest, digestbuf); 432 } 433 tab = "\t"; 434 } 435 } 436 #endif /* ! NO_SHA1 */ 437 if (s->flags & F_SLINK && 438 strcmp(cp = rlink(p->fts_accpath), s->slink)) { 439 LABEL; 440 printf("%slink ref (%s, %s", tab, cp, s->slink); 441 if (uflag) { 442 if ((unlink(p->fts_accpath) == -1) || 443 (symlink(s->slink, p->fts_accpath) == -1) ) 444 printf(", not modified: %s)\n", 445 strerror(errno)); 446 else 447 printf(", modified)\n"); 448 } else 449 printf(")\n"); 450 } 451 return (label); 452 } 453 454 const char * 455 rlink(const char *name) 456 { 457 static char lbuf[MAXPATHLEN]; 458 int len; 459 460 if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1) 461 mtree_err("%s: %s", name, strerror(errno)); 462 lbuf[len] = '\0'; 463 return (lbuf); 464 } 465
Indexes created Mon Sep 22 21:09:42 GMT 2025