mtree/compare.c

   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
  32 static char sccsid[] = "@(#)compare.c   8.1 (Berkeley) 6/6/93";
  33 #endif /* not lint */
  34 #endif
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD: src/usr.sbin/mtree/compare.c,v 1.34 2005/03/29 11:44:17 tobez Exp $");
  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 #ifndef __APPLE__
  47 #ifdef ENABLE_MD5
  48 #include <md5.h>
  49 #endif
  50 #ifdef ENABLE_RMD160
  51 #include <ripemd.h>
  52 #endif
  53 #ifdef ENABLE_SHA1
  54 #include <sha.h>
  55 #endif
  56 #ifdef ENABLE_SHA256
  57 #include <sha256.h>
  58 #endif
  59 #endif /* !__APPLE__ */
  60 #include <stdint.h>
  61 #include <stdio.h>
  62 #include <time.h>
  63 #include <unistd.h>
  64 #include <vis.h>
  65
  66 #include "mtree.h"
  67 #include "extern.h"
  68
  69 #ifdef __APPLE__
  70 #include "commoncrypto.h"
  71 #endif /* __APPLE__ */
  72
  73 #define INDENTNAMELEN   8
  74 #define LABEL \
  75         if (!label++) { \
  76                 len = printf("%s changed\n", RP(p)); \
  77                 tab = "\t"; \
  78         }
  79
  80 int
  81 compare(char *name __unused, NODE *s, FTSENT *p)
  82 {
  83         struct timeval tv[2];
  84         uint32_t val;
  85         int fd, label;
  86         off_t len;
  87         char *cp;
  88         const char *tab = "";
  89         char *fflags;
  90
  91         label = 0;
  92         switch(s->type) {
  93         case F_BLOCK:
  94                 if (!S_ISBLK(p->fts_statp->st_mode))
  95                         goto typeerr;
  96                 break;
  97         case F_CHAR:
  98                 if (!S_ISCHR(p->fts_statp->st_mode))
  99                         goto typeerr;
 100                 break;
 101         case F_DIR:
 102                 if (!S_ISDIR(p->fts_statp->st_mode))
 103                         goto typeerr;
 104                 break;
 105         case F_FIFO:
 106                 if (!S_ISFIFO(p->fts_statp->st_mode))
 107                         goto typeerr;
 108                 break;
 109         case F_FILE:
 110                 if (!S_ISREG(p->fts_statp->st_mode))
 111                         goto typeerr;
 112                 break;
 113         case F_LINK:
 114                 if (!S_ISLNK(p->fts_statp->st_mode))
 115                         goto typeerr;
 116                 break;
 117         case F_SOCK:
 118                 if (!S_ISSOCK(p->fts_statp->st_mode)) {
 119 typeerr:                LABEL;
 120                         (void)printf("\ttype expected %s found %s\n",
 121                             ftype(s->type), inotype(p->fts_statp->st_mode));
 122                         return (label);
 123                 }
 124                 break;
 125         }
 126         /* Set the uid/gid first, then set the mode. */
 127         if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
 128                 LABEL;
 129                 (void)printf("%suser expected %lu found %lu",
 130                     tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
 131                 if (uflag)
 132                         if (chown(p->fts_accpath, s->st_uid, -1))
 133                                 (void)printf(" not modified: %s\n",
 134                                     strerror(errno));
 135                         else
 136                                 (void)printf(" modified\n");
 137                 else
 138                         (void)printf("\n");
 139                 tab = "\t";
 140         }
 141         if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
 142                 LABEL;
 143                 (void)printf("%sgid expected %lu found %lu",
 144                     tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
 145                 if (uflag)
 146                         if (chown(p->fts_accpath, -1, s->st_gid))
 147                                 (void)printf(" not modified: %s\n",
 148                                     strerror(errno));
 149                         else
 150                                 (void)printf(" modified\n");
 151                 else
 152                         (void)printf("\n");
 153                 tab = "\t";
 154         }
 155         if (s->flags & F_MODE &&
 156             !S_ISLNK(p->fts_statp->st_mode) &&
 157             s->st_mode != (p->fts_statp->st_mode & MBITS)) {
 158                 LABEL;
 159                 (void)printf("%spermissions expected %#o found %#o",
 160                     tab, s->st_mode, p->fts_statp->st_mode & MBITS);
 161                 if (uflag)
 162                         if (chmod(p->fts_accpath, s->st_mode))
 163                                 (void)printf(" not modified: %s\n",
 164                                     strerror(errno));
 165                         else
 166                                 (void)printf(" modified\n");
 167                 else
 168                         (void)printf("\n");
 169                 tab = "\t";
 170         }
 171         if (s->flags & F_NLINK && s->type != F_DIR &&
 172             s->st_nlink != p->fts_statp->st_nlink) {
 173                 LABEL;
 174                 (void)printf("%slink_count expected %u found %u\n",
 175                     tab, s->st_nlink, p->fts_statp->st_nlink);
 176                 tab = "\t";
 177         }
 178         if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size &&
 179                 !S_ISDIR(p->fts_statp->st_mode)) {
 180                 LABEL;
 181                 (void)printf("%ssize expected %jd found %jd\n", tab,
 182                     (intmax_t)s->st_size, (intmax_t)p->fts_statp->st_size);
 183                 tab = "\t";
 184         }
 185         /*
 186          * XXX
 187          * Catches nano-second differences, but doesn't display them.
 188          */
 189         if ((s->flags & F_TIME) &&
 190              ((s->st_mtimespec.tv_sec != p->fts_statp->st_mtimespec.tv_sec) ||
 191              (s->st_mtimespec.tv_nsec != p->fts_statp->st_mtimespec.tv_nsec))) {
 192                 LABEL;
 193                 (void)printf("%smodification time expected %.24s ",
 194                     tab, ctime(&s->st_mtimespec.tv_sec));
 195                 (void)printf("found %.24s",
 196                     ctime(&p->fts_statp->st_mtimespec.tv_sec));
 197                 if (uflag) {
 198                         tv[0].tv_sec = s->st_mtimespec.tv_sec;
 199                         tv[0].tv_usec = s->st_mtimespec.tv_nsec / 1000;
 200                         tv[1] = tv[0];
 201                         if (utimes(p->fts_accpath, tv))
 202                                 (void)printf(" not modified: %s\n",
 203                                     strerror(errno));
 204                         else
 205                                 (void)printf(" modified\n");
 206                 } else
 207                         (void)printf("\n");
 208                 tab = "\t";
 209         }
 210         if (s->flags & F_CKSUM) {
 211                 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
 212                         LABEL;
 213                         (void)printf("%scksum: %s: %s\n",
 214                             tab, p->fts_accpath, strerror(errno));
 215                         tab = "\t";
 216                 } else if (crc(fd, &val, &len)) {
 217                         (void)close(fd);
 218                         LABEL;
 219                         (void)printf("%scksum: %s: %s\n",
 220                             tab, p->fts_accpath, strerror(errno));
 221                         tab = "\t";
 222                 } else {
 223                         (void)close(fd);
 224                         if (s->cksum != val) {
 225                                 LABEL;
 226                                 (void)printf("%scksum expected %lu found %lu\n",
 227                                     tab, s->cksum, (unsigned long)val);
 228                                 tab = "\t";
 229                         }
 230                 }
 231         }
 232         if ((s->flags & F_FLAGS) && s->st_flags != p->fts_statp->st_flags) {
 233                 LABEL;
 234                 fflags = flags_to_string(s->st_flags);
 235                 (void)printf("%sflags expected \"%s\"", tab, fflags);
 236                 free(fflags);
 237
 238                 fflags = flags_to_string(p->fts_statp->st_flags);
 239                 (void)printf(" found \"%s\"", fflags);
 240                 free(fflags);
 241
 242                 if (uflag)
 243                         if (chflags(p->fts_accpath, (u_int)s->st_flags))
 244                                 (void)printf(" not modified: %s\n",
 245                                     strerror(errno));
 246                         else
 247                                 (void)printf(" modified\n");
 248                 else
 249                         (void)printf("\n");
 250                 tab = "\t";
 251         }
 252 #ifdef ENABLE_MD5
 253         if (s->flags & F_MD5) {
 254                 char *new_digest, buf[33];
 255
 256                 new_digest = MD5File(p->fts_accpath, buf);
 257                 if (!new_digest) {
 258                         LABEL;
 259                         printf("%sMD5: %s: %s\n", tab, p->fts_accpath,
 260                                strerror(errno));
 261                         tab = "\t";
 262                 } else if (strcmp(new_digest, s->md5digest)) {
 263                         LABEL;
 264                         printf("%sMD5 expected %s found %s\n", tab, s->md5digest,
 265                                new_digest);
 266                         tab = "\t";
 267                 }
 268         }
 269 #endif /* ENABLE_MD5 */
 270 #ifdef ENABLE_SHA1
 271         if (s->flags & F_SHA1) {
 272                 char *new_digest, buf[41];
 273
 274                 new_digest = SHA1_File(p->fts_accpath, buf);
 275                 if (!new_digest) {
 276                         LABEL;
 277                         printf("%sSHA-1: %s: %s\n", tab, p->fts_accpath,
 278                                strerror(errno));
 279                         tab = "\t";
 280                 } else if (strcmp(new_digest, s->sha1digest)) {
 281                         LABEL;
 282                         printf("%sSHA-1 expected %s found %s\n",
 283                                tab, s->sha1digest, new_digest);
 284                         tab = "\t";
 285                 }
 286         }
 287 #endif /* ENABLE_SHA1 */
 288 #ifdef ENABLE_RMD160
 289         if (s->flags & F_RMD160) {
 290                 char *new_digest, buf[41];
 291
 292                 new_digest = RIPEMD160_File(p->fts_accpath, buf);
 293                 if (!new_digest) {
 294                         LABEL;
 295                         printf("%sRIPEMD160: %s: %s\n", tab,
 296                                p->fts_accpath, strerror(errno));
 297                         tab = "\t";
 298                 } else if (strcmp(new_digest, s->rmd160digest)) {
 299                         LABEL;
 300                         printf("%sRIPEMD160 expected %s found %s\n",
 301                                tab, s->rmd160digest, new_digest);
 302                         tab = "\t";
 303                 }
 304         }
 305 #endif /* ENABLE_RMD160 */
 306 #ifdef ENABLE_SHA256
 307         if (s->flags & F_SHA256) {
 308                 char *new_digest, buf[65];
 309
 310                 new_digest = SHA256_File(p->fts_accpath, buf);
 311                 if (!new_digest) {
 312                         LABEL;
 313                         printf("%sSHA-256: %s: %s\n", tab, p->fts_accpath,
 314                                strerror(errno));
 315                         tab = "\t";
 316                 } else if (strcmp(new_digest, s->sha256digest)) {
 317                         LABEL;
 318                         printf("%sSHA-256 expected %s found %s\n",
 319                                tab, s->sha256digest, new_digest);
 320                         tab = "\t";
 321                 }
 322         }
 323 #endif /* ENABLE_SHA256 */
 324
 325         if (s->flags & F_SLINK &&
 326             strcmp(cp = rlink(p->fts_accpath), s->slink)) {
 327                 LABEL;
 328                 (void)printf("%slink_ref expected %s found %s\n",
 329                       tab, s->slink, cp);
 330         }
 331         return (label);
 332 }
 333
 334 const char *
 335 inotype(u_int type)
 336 {
 337         switch(type & S_IFMT) {
 338         case S_IFBLK:
 339                 return ("block");
 340         case S_IFCHR:
 341                 return ("char");
 342         case S_IFDIR:
 343                 return ("dir");
 344         case S_IFIFO:
 345                 return ("fifo");
 346         case S_IFREG:
 347                 return ("file");
 348         case S_IFLNK:
 349                 return ("link");
 350         case S_IFSOCK:
 351                 return ("socket");
 352         default:
 353                 return ("unknown");
 354         }
 355         /* NOTREACHED */
 356 }
 357
 358 const char *
 359 ftype(u_int type)
 360 {
 361         switch(type) {
 362         case F_BLOCK:
 363                 return ("block");
 364         case F_CHAR:
 365                 return ("char");
 366         case F_DIR:
 367                 return ("dir");
 368         case F_FIFO:
 369                 return ("fifo");
 370         case F_FILE:
 371                 return ("file");
 372         case F_LINK:
 373                 return ("link");
 374         case F_SOCK:
 375                 return ("socket");
 376         default:
 377                 return ("unknown");
 378         }
 379         /* NOTREACHED */
 380 }
 381
 382 char *
 383 rlink(char *name)
 384 {
 385         static char lbuf[MAXPATHLEN];
 386         ssize_t len;
 387
 388         if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1)
 389                 err(1, "line %d: %s", lineno, name);
 390         lbuf[len] = '\0';
 391         return (lbuf);
 392 }