1 /* $NetBSD: compare.c,v 1.36 2001/11/10 14:58:20 lukem 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 1.36 2001/11/10 14:58:20 lukem Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 47 #include <errno.h> 48 #include <fcntl.h> 49 #include <fts.h> 50 #include <stdio.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 65 #include "mtree.h" 66 #include "extern.h" 67 68 #define INDENTNAMELEN 8 69 #define MARK \ 70 do { \ 71 len = printf("%s: ", RP(p)); \ 72 if (len > INDENTNAMELEN) { \ 73 tab = "\t"; \ 74 printf("\n"); \ 75 } else { \ 76 tab = ""; \ 77 printf("%*s", INDENTNAMELEN - (int)len, ""); \ 78 } \ 79 } while (0) 80 #define LABEL if (!label++) MARK 81 82 #define CHANGEFLAGS(path, oflags) \ 83 if (flags != (oflags)) { \ 84 if (!label) { \ 85 MARK; \ 86 printf("%sflags (\"%s\"", tab, \ 87 flags_to_string(p->fts_statp->st_flags, "none")); \ 88 } \ 89 if (chflags(path, flags)) { \ 90 label++; \ 91 printf(", not modified: %s)\n", \ 92 strerror(errno)); \ 93 } else \ 94 printf(", modified to \"%s\")\n", \ 95 flags_to_string(flags, "none")); \ 96 } 97 98 /* SETFLAGS: 99 * given pflags, additionally set those flags specified in sflags and 100 * selected by mask (the other flags are left unchanged). oflags is 101 * passed as reference to check if chflags is necessary. 102 */ 103 #define SETFLAGS(path, sflags, pflags, oflags, mask) \ 104 do { \ 105 flags = ((sflags) & (mask)) | (pflags); \ 106 CHANGEFLAGS(path, oflags); \ 107 } while (0) 108 109 /* CLEARFLAGS: 110 * given pflags, reset the flags specified in sflags and selected by mask 111 * (the other flags are left unchanged). oflags is 112 * passed as reference to check if chflags is necessary. 113 */ 114 #define CLEARFLAGS(path, sflags, pflags, oflags, mask) \ 115 do { \ 116 flags = (~((sflags) & (mask)) & CH_MASK) & (pflags); \ 117 CHANGEFLAGS(path, oflags); \ 118 } while (0) 119 120 int 121 compare(NODE *s, FTSENT *p) 122 { 123 u_int32_t len, val, flags; 124 int fd, label; 125 const char *cp, *tab; 126 #if !defined(NO_MD5) || !defined(NO_RMD160) || !defined(NO_SHA1) 127 char digestbuf[41]; /* large enough for {MD5,RMD160,SHA1}File() */ 128 #endif 129 130 tab = NULL; 131 label = 0; 132 switch(s->type) { 133 case F_BLOCK: 134 if (!S_ISBLK(p->fts_statp->st_mode)) 135 goto typeerr; 136 break; 137 case F_CHAR: 138 if (!S_ISCHR(p->fts_statp->st_mode)) 139 goto typeerr; 140 break; 141 case F_DIR: 142 if (!S_ISDIR(p->fts_statp->st_mode)) 143 goto typeerr; 144 break; 145 case F_FIFO: 146 if (!S_ISFIFO(p->fts_statp->st_mode)) 147 goto typeerr; 148 break; 149 case F_FILE: 150 if (!S_ISREG(p->fts_statp->st_mode)) 151 goto typeerr; 152 break; 153 case F_LINK: 154 if (!S_ISLNK(p->fts_statp->st_mode)) 155 goto typeerr; 156 break; 157 case F_SOCK: 158 if (!S_ISSOCK(p->fts_statp->st_mode)) { 159 typeerr: LABEL; 160 printf("\ttype (%s, %s)\n", 161 nodetype(s->type), inotype(p->fts_statp->st_mode)); 162 return (label); 163 } 164 break; 165 } 166 if (Wflag) 167 goto afterpermwhack; 168 if (iflag && !uflag) { 169 if (s->flags & F_FLAGS) 170 SETFLAGS(p->fts_accpath, s->st_flags, 171 p->fts_statp->st_flags, p->fts_statp->st_flags, 172 SP_FLGS); 173 return (label); 174 } 175 if (mflag && !uflag) { 176 if (s->flags & F_FLAGS) 177 CLEARFLAGS(p->fts_accpath, s->st_flags, 178 p->fts_statp->st_flags, p->fts_statp->st_flags, 179 SP_FLGS); 180 return (label); 181 } 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[1], &ps->st_mtimespec); 298 #else 299 time_t pmtime = (time_t)ps->st_mtime; 300 301 tv[1].tv_sec = ps->st_mtime; 302 tv[1].tv_usec = 0; 303 #endif 304 TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec); 305 306 if (tv[0].tv_sec != tv[1].tv_sec || 307 tv[0].tv_usec != tv[1].tv_usec) { 308 LABEL; 309 printf("%smodification time (%.24s, ", 310 tab, ctime(&smtime)); 311 printf("%.24s", ctime(&pmtime)); 312 if (tflag) { 313 tv[1] = tv[0]; 314 if (utimes(p->fts_accpath, tv)) 315 printf(", not modified: %s)\n", 316 strerror(errno)); 317 else 318 printf(", modified)\n"); 319 } else 320 printf(")\n"); 321 tab = "\t"; 322 } 323 } 324 /* 325 * XXX 326 * since chflags(2) will reset file times, the utimes() above 327 * may have been useless! oh well, we'd rather have correct 328 * flags, rather than times? 329 */ 330 if ((s->flags & F_FLAGS) && ((s->st_flags != p->fts_statp->st_flags) 331 || mflag || iflag)) { 332 if (s->st_flags != p->fts_statp->st_flags) { 333 LABEL; 334 printf("%sflags (\"%s\" is not ", tab, 335 flags_to_string(s->st_flags, "none")); 336 printf("\"%s\"", 337 flags_to_string(p->fts_statp->st_flags, "none")); 338 } 339 if (uflag) { 340 if (iflag) 341 SETFLAGS(p->fts_accpath, s->st_flags, 342 0, p->fts_statp->st_flags, CH_MASK); 343 else if (mflag) 344 CLEARFLAGS(p->fts_accpath, s->st_flags, 345 0, p->fts_statp->st_flags, SP_FLGS); 346 else 347 SETFLAGS(p->fts_accpath, s->st_flags, 348 0, p->fts_statp->st_flags, 349 (~SP_FLGS & CH_MASK)); 350 } else 351 printf(")\n"); 352 tab = "\t"; 353 } 354 355 /* 356 * from this point, no more permission checking or whacking 357 * occurs, only checking of stuff like checksums and symlinks. 358 */ 359 afterpermwhack: 360 if (s->flags & F_CKSUM) { 361 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) { 362 LABEL; 363 printf("%scksum: %s: %s\n", 364 tab, p->fts_accpath, strerror(errno)); 365 tab = "\t"; 366 } else if (crc(fd, &val, &len)) { 367 close(fd); 368 LABEL; 369 printf("%scksum: %s: %s\n", 370 tab, p->fts_accpath, strerror(errno)); 371 tab = "\t"; 372 } else { 373 close(fd); 374 if (s->cksum != val) { 375 LABEL; 376 printf("%scksum (%lu, %lu)\n", 377 tab, s->cksum, (unsigned long)val); 378 } 379 tab = "\t"; 380 } 381 } 382 #ifndef NO_MD5 383 if (s->flags & F_MD5) { 384 if (MD5File(p->fts_accpath, digestbuf) == NULL) { 385 LABEL; 386 printf("%smd5: %s: %s\n", 387 tab, p->fts_accpath, strerror(errno)); 388 tab = "\t"; 389 } else { 390 if (strcmp(s->md5digest, digestbuf)) { 391 LABEL; 392 printf("%smd5 (0x%s, 0x%s)\n", 393 tab, s->md5digest, digestbuf); 394 } 395 tab = "\t"; 396 } 397 } 398 #endif /* ! NO_MD5 */ 399 #ifndef NO_RMD160 400 if (s->flags & F_RMD160) { 401 if (RMD160File(p->fts_accpath, digestbuf) == NULL) { 402 LABEL; 403 printf("%srmd160: %s: %s\n", 404 tab, p->fts_accpath, strerror(errno)); 405 tab = "\t"; 406 } else { 407 if (strcmp(s->rmd160digest, digestbuf)) { 408 LABEL; 409 printf("%srmd160 (0x%s, 0x%s)\n", 410 tab, s->rmd160digest, digestbuf); 411 } 412 tab = "\t"; 413 } 414 } 415 #endif /* ! NO_RMD160 */ 416 #ifndef NO_SHA1 417 if (s->flags & F_SHA1) { 418 if (SHA1File(p->fts_accpath, digestbuf) == NULL) { 419 LABEL; 420 printf("%ssha1: %s: %s\n", 421 tab, p->fts_accpath, strerror(errno)); 422 tab = "\t"; 423 } else { 424 if (strcmp(s->sha1digest, digestbuf)) { 425 LABEL; 426 printf("%ssha1 (0x%s, 0x%s)\n", 427 tab, s->sha1digest, digestbuf); 428 } 429 tab = "\t"; 430 } 431 } 432 #endif /* ! NO_SHA1 */ 433 if (s->flags & F_SLINK && 434 strcmp(cp = rlink(p->fts_accpath), s->slink)) { 435 LABEL; 436 printf("%slink ref (%s, %s", tab, cp, s->slink); 437 if (uflag) { 438 if ((unlink(p->fts_accpath) == -1) || 439 (symlink(s->slink, p->fts_accpath) == -1) ) 440 printf(", not modified: %s)\n", 441 strerror(errno)); 442 else 443 printf(", modified)\n"); 444 } else 445 printf(")\n"); 446 } 447 return (label); 448 } 449 450 const char * 451 rlink(const char *name) 452 { 453 static char lbuf[MAXPATHLEN]; 454 int len; 455 456 if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1) 457 mtree_err("%s: %s", name, strerror(errno)); 458 lbuf[len] = '\0'; 459 return (lbuf); 460 } 461