compare.c revision 1.31
1 /* $NetBSD: compare.c,v 1.31 2001/10/18 04:45:41 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 1.31 2001/10/18 04:45:41 lukem Exp $"); 42 #endif 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <sys/stat.h> 47 #include <sys/types.h> 48 49 #include <errno.h> 50 #include <fcntl.h> 51 #include <fts.h> 52 #include <md5.h> 53 #include <stdio.h> 54 #include <time.h> 55 #include <unistd.h> 56 57 #include "mtree.h" 58 #include "extern.h" 59 60 #define INDENTNAMELEN 8 61 #define MARK \ 62 do { \ 63 len = printf("%s: ", RP(p)); \ 64 if (len > INDENTNAMELEN) { \ 65 tab = "\t"; \ 66 (void)printf("\n"); \ 67 } else { \ 68 tab = ""; \ 69 (void)printf("%*s", INDENTNAMELEN - (int)len, ""); \ 70 } \ 71 } while (0) 72 #define LABEL if (!label++) MARK 73 74 #define CHANGEFLAGS(path, oflags) \ 75 if (flags != (oflags)) { \ 76 if (!label) { \ 77 MARK; \ 78 (void)printf("%sflags (\"%s\"", tab, \ 79 flags_to_string(p->fts_statp->st_flags, "none")); \ 80 } \ 81 if (chflags(path, flags)) { \ 82 label++; \ 83 (void)printf(", not modified: %s)\n", \ 84 strerror(errno)); \ 85 } else \ 86 (void)printf(", modified to \"%s\")\n", \ 87 flags_to_string(flags, "none")); \ 88 } 89 90 /* SETFLAGS: 91 * given pflags, additionally set those flags specified in sflags and 92 * selected by mask (the other flags are left unchanged). oflags is 93 * passed as reference to check if chflags is necessary. 94 */ 95 #define SETFLAGS(path, sflags, pflags, oflags, mask) \ 96 do { \ 97 flags = ((sflags) & (mask)) | (pflags); \ 98 CHANGEFLAGS(path, oflags); \ 99 } while (0) 100 101 /* CLEARFLAGS: 102 * given pflags, reset the flags specified in sflags and selected by mask 103 * (the other flags are left unchanged). oflags is 104 * passed as reference to check if chflags is necessary. 105 */ 106 #define CLEARFLAGS(path, sflags, pflags, oflags, mask) \ 107 do { \ 108 flags = (~((sflags) & (mask)) & CH_MASK) & (pflags); \ 109 CHANGEFLAGS(path, oflags); \ 110 } while (0) 111 112 int 113 compare(const char *name, NODE *s, FTSENT *p) 114 { 115 u_int32_t len, val, flags; 116 int fd, label; 117 const char *cp, *tab; 118 char md5buf[35]; 119 120 tab = NULL; 121 label = 0; 122 switch(s->type) { 123 case F_BLOCK: 124 if (!S_ISBLK(p->fts_statp->st_mode)) 125 goto typeerr; 126 break; 127 case F_CHAR: 128 if (!S_ISCHR(p->fts_statp->st_mode)) 129 goto typeerr; 130 break; 131 case F_DIR: 132 if (!S_ISDIR(p->fts_statp->st_mode)) 133 goto typeerr; 134 break; 135 case F_FIFO: 136 if (!S_ISFIFO(p->fts_statp->st_mode)) 137 goto typeerr; 138 break; 139 case F_FILE: 140 if (!S_ISREG(p->fts_statp->st_mode)) 141 goto typeerr; 142 break; 143 case F_LINK: 144 if (!S_ISLNK(p->fts_statp->st_mode)) 145 goto typeerr; 146 break; 147 case F_SOCK: 148 if (!S_ISSOCK(p->fts_statp->st_mode)) { 149 typeerr: LABEL; 150 (void)printf("\ttype (%s, %s)\n", 151 nodetype(s->type), inotype(p->fts_statp->st_mode)); 152 } 153 break; 154 } 155 if (iflag && !uflag) { 156 if (s->flags & F_FLAGS) 157 SETFLAGS(p->fts_accpath, s->st_flags, 158 p->fts_statp->st_flags, p->fts_statp->st_flags, 159 SP_FLGS); 160 return (label); 161 } 162 if (mflag && !uflag) { 163 if (s->flags & F_FLAGS) 164 CLEARFLAGS(p->fts_accpath, s->st_flags, 165 p->fts_statp->st_flags, p->fts_statp->st_flags, 166 SP_FLGS); 167 return (label); 168 } 169 /* Set the uid/gid first, then set the mode. */ 170 if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) { 171 LABEL; 172 (void)printf("%suser (%lu, %lu", 173 tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid); 174 if (uflag) { 175 if (chown(p->fts_accpath, s->st_uid, -1)) 176 (void)printf(", not modified: %s)\n", 177 strerror(errno)); 178 else 179 (void)printf(", modified)\n"); 180 } else 181 (void)printf(")\n"); 182 tab = "\t"; 183 } 184 if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) { 185 LABEL; 186 (void)printf("%sgid (%lu, %lu", 187 tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid); 188 if (uflag) { 189 if (chown(p->fts_accpath, -1, s->st_gid)) 190 (void)printf(", not modified: %s)\n", 191 strerror(errno)); 192 else 193 (void)printf(", modified)\n"); 194 } 195 else 196 (void)printf(")\n"); 197 tab = "\t"; 198 } 199 if (s->flags & F_MODE && 200 s->st_mode != (p->fts_statp->st_mode & MBITS)) { 201 if (lflag) { 202 mode_t tmode, mode; 203 204 tmode = s->st_mode; 205 mode = p->fts_statp->st_mode & MBITS; 206 /* 207 * if none of the suid/sgid/etc bits are set, 208 * then if the mode is a subset of the target, 209 * skip. 210 */ 211 if (!((tmode & ~(S_IRWXU|S_IRWXG|S_IRWXO)) || 212 (mode & ~(S_IRWXU|S_IRWXG|S_IRWXO)))) 213 if ((mode | tmode) == tmode) 214 goto skip; 215 } 216 217 LABEL; 218 (void)printf("%spermissions (%#lo, %#lo", 219 tab, (u_long)s->st_mode, 220 (u_long)p->fts_statp->st_mode & MBITS); 221 if (uflag) { 222 if (chmod(p->fts_accpath, s->st_mode)) 223 (void)printf(", not modified: %s)\n", 224 strerror(errno)); 225 else 226 (void)printf(", modified)\n"); 227 } 228 else 229 (void)printf(")\n"); 230 tab = "\t"; 231 skip: ; 232 } 233 if (s->flags & F_DEV && 234 (s->type == F_BLOCK || s->type == F_CHAR) && 235 s->st_rdev != p->fts_statp->st_rdev) { 236 LABEL; 237 (void)printf("%sdevice (%#x, %#x", 238 tab, s->st_rdev, p->fts_statp->st_rdev); 239 if (uflag) { 240 /* XXXLUKEM: unlink first ? */ 241 if (mknod(p->fts_accpath, s->st_mode, s->st_rdev)) 242 (void)printf(", not modified: %s)\n", 243 strerror(errno)); 244 else 245 (void)printf(", modified)\n"); 246 } else 247 (void)printf(")\n"); 248 tab = "\t"; 249 } 250 if (s->flags & F_NLINK && s->type != F_DIR && 251 s->st_nlink != p->fts_statp->st_nlink) { 252 LABEL; 253 (void)printf("%slink count (%lu, %lu)\n", 254 tab, (u_long)s->st_nlink, (u_long)p->fts_statp->st_nlink); 255 tab = "\t"; 256 } 257 if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size) { 258 LABEL; 259 (void)printf("%ssize (%lld, %lld)\n", 260 tab, (long long)s->st_size, 261 (long long)p->fts_statp->st_size); 262 tab = "\t"; 263 } 264 /* 265 * XXX 266 * Since utimes(2) only takes a timeval, there's no point in 267 * comparing the low bits of the timespec nanosecond field. This 268 * will only result in mismatches that we can never fix. 269 * 270 * Doesn't display microsecond differences. 271 */ 272 if (s->flags & F_TIME) { 273 struct timeval tv[2]; 274 struct stat *ps = p->fts_statp; 275 time_t smtime = s->st_mtimespec.tv_sec; 276 277 #ifdef BSD4_4 278 time_t pmtime = ps->st_mtimespec.tv_sec; 279 280 TIMESPEC_TO_TIMEVAL(&tv[1], &ps->st_mtimespec); 281 #else 282 time_t pmtime = (time_t)ps->st_mtime; 283 284 tv[1].tv_sec = ps->st_mtime; 285 tv[1].tv_usec = 0; 286 #endif 287 TIMESPEC_TO_TIMEVAL(&tv[0], &s->st_mtimespec); 288 289 if (tv[0].tv_sec != tv[1].tv_sec || 290 tv[0].tv_usec != tv[1].tv_usec) { 291 LABEL; 292 (void)printf("%smodification time (%.24s, ", 293 tab, ctime(&smtime)); 294 (void)printf("%.24s", ctime(&pmtime)); 295 if (tflag) { 296 tv[1] = tv[0]; 297 if (utimes(p->fts_accpath, tv)) 298 (void)printf(", not modified: %s)\n", 299 strerror(errno)); 300 else 301 (void)printf(", modified)\n"); 302 } else 303 (void)printf(")\n"); 304 tab = "\t"; 305 } 306 } 307 /* 308 * XXX 309 * since chflags(2) will reset file times, the utimes() above 310 * may have been useless! oh well, we'd rather have correct 311 * flags, rather than times? 312 */ 313 if ((s->flags & F_FLAGS) && ((s->st_flags != p->fts_statp->st_flags) 314 || mflag || iflag)) { 315 if (s->st_flags != p->fts_statp->st_flags) { 316 LABEL; 317 (void)printf("%sflags (\"%s\" is not ", tab, 318 flags_to_string(s->st_flags, "none")); 319 (void)printf("\"%s\"", 320 flags_to_string(p->fts_statp->st_flags, "none")); 321 } 322 if (uflag) { 323 if (iflag) 324 SETFLAGS(p->fts_accpath, s->st_flags, 325 0, p->fts_statp->st_flags, CH_MASK); 326 else if (mflag) 327 CLEARFLAGS(p->fts_accpath, s->st_flags, 328 0, p->fts_statp->st_flags, SP_FLGS); 329 else 330 SETFLAGS(p->fts_accpath, s->st_flags, 331 0, p->fts_statp->st_flags, 332 (~SP_FLGS & CH_MASK)); 333 } else 334 (void)printf(")\n"); 335 tab = "\t"; 336 } 337 if (s->flags & F_CKSUM) { 338 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) { 339 LABEL; 340 (void)printf("%scksum: %s: %s\n", 341 tab, p->fts_accpath, strerror(errno)); 342 tab = "\t"; 343 } else if (crc(fd, &val, &len)) { 344 (void)close(fd); 345 LABEL; 346 (void)printf("%scksum: %s: %s\n", 347 tab, p->fts_accpath, strerror(errno)); 348 tab = "\t"; 349 } else { 350 (void)close(fd); 351 if (s->cksum != val) { 352 LABEL; 353 (void)printf("%scksum (%lu, %lu)\n", 354 tab, s->cksum, (unsigned long)val); 355 } 356 tab = "\t"; 357 } 358 } 359 if (s->flags & F_MD5) { 360 if (MD5File(p->fts_accpath, md5buf) == NULL) { 361 LABEL; 362 (void)printf("%smd5: %s: %s\n", 363 tab, p->fts_accpath, strerror(errno)); 364 tab = "\t"; 365 } else { 366 if (strcmp(s->md5sum, md5buf)) { 367 LABEL; 368 (void)printf("%smd5 (0x%s, 0x%s)\n", 369 tab, s->md5sum, md5buf); 370 } 371 tab = "\t"; 372 } 373 } 374 375 if (s->flags & F_SLINK && strcmp(cp = rlink(name), s->slink)) { 376 LABEL; 377 (void)printf("%slink ref (%s, %s)\n", tab, cp, s->slink); 378 } 379 return (label); 380 } 381 382 const char * 383 inotype(u_int type) 384 { 385 386 return (nodetype(type & S_IFMT)); 387 } 388 389 const char * 390 nodetype(u_int type) 391 { 392 393 switch(type) { 394 case F_BLOCK: 395 case S_IFBLK: 396 return ("block"); 397 case F_CHAR: 398 case S_IFCHR: 399 return ("char"); 400 case F_DIR: 401 case S_IFDIR: 402 return ("dir"); 403 case F_FIFO: 404 case S_IFIFO: 405 return ("fifo"); 406 case F_FILE: 407 case S_IFREG: 408 return ("file"); 409 case F_LINK: 410 case S_IFLNK: 411 return ("link"); 412 case F_SOCK: 413 case S_IFSOCK: 414 return ("socket"); 415 default: 416 return ("unknown"); 417 } 418 /* NOTREACHED */ 419 } 420 421 const char * 422 rlink(const char *name) 423 { 424 static char lbuf[MAXPATHLEN]; 425 int len; 426 427 if ((len = readlink(name, lbuf, sizeof(lbuf))) == -1) 428 mtree_err("%s: %s", name, strerror(errno)); 429 lbuf[len] = '\0'; 430 return (lbuf); 431 } 432
Indexes created Wed Sep 24 05:09:52 GMT 2025