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 #ifdef ENABLE_MD5
  47 #include <md5.h>
  48 #endif
  49 #ifdef ENABLE_RMD160
  50 #include <ripemd.h>
  51 #endif
  52 #ifdef ENABLE_SHA1
  53 #include <sha.h>
  54 #endif
  55 #ifdef ENABLE_SHA256
  56 #include <sha256.h>
  57 #endif
  58 #include <stdint.h>
  59 #include <stdio.h>
  60 #include <time.h>
  61 #include <unistd.h>
  62 #include <vis.h>
  63
  64 #include "mtree.h"
  65 #include "extern.h"
  66
  67 #define INDENTNAMELEN   8
  68 #define LABEL \
  69         if (!label++) { \
  70                 len = printf("%s changed\n", RP(p)); \
  71                 tab = "\t"; \
  72         }
  73
  74 int
  75 compare(char *name __unused, NODE *s, FTSENT *p)
  76 {
  77         struct timeval tv[2];
  78         uint32_t val;
  79         int fd, label;
  80         off_t len;
  81         char *cp;
  82         const char *tab = "";
  83         char *fflags;
  84
  85         label = 0;
  86         switch(s->type) {
  87         case F_BLOCK:
  88                 if (!S_ISBLK(p->fts_statp->st_mode))
  89                         goto typeerr;
  90                 break;
  91         case F_CHAR:
  92                 if (!S_ISCHR(p->fts_statp->st_mode))
  93                         goto typeerr;
  94                 break;
  95         case F_DIR:
  96                 if (!S_ISDIR(p->fts_statp->st_mode))
  97                         goto typeerr;
  98                 break;
  99         case F_FIFO:
 100                 if (!S_ISFIFO(p->fts_statp->st_mode))
 101                         goto typeerr;
 102                 break;
 103         case F_FILE:
 104                 if (!S_ISREG(p->fts_statp->st_mode))
 105                         goto typeerr;
 106                 break;
 107         case F_LINK:
 108                 if (!S_ISLNK(p->fts_statp->st_mode))
 109                         goto typeerr;
 110                 break;
 111         case F_SOCK:
 112                 if (!S_ISSOCK(p->fts_statp->st_mode)) {
 113 typeerr:                LABEL;
 114                         (void)printf("\ttype expected %s found %s\n",
 115                             ftype(s->type), inotype(p->fts_statp->st_mode));
 116                         return (label);
 117                 }
 118                 break;
 119         }
 120         /* Set the uid/gid first, then set the mode. */
 121         if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
 122                 LABEL;
 123                 (void)printf("%suser expected %lu found %lu",
 124                     tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
 125                 if (uflag)
 126                         if (chown(p->fts_accpath, s->st_uid, -1))
 127                                 (void)printf(" not modified: %s\n",
 128                                     strerror(errno));
 129                         else
 130                                 (void)printf(" modified\n");
 131                 else
 132                         (void)printf("\n");
 133                 tab = "\t";
 134         }
 135         if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
 136                 LABEL;
 137                 (void)printf("%sgid expected %lu found %lu",
 138                     tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
 139                 if (uflag)
 140                         if (chown(p->fts_accpath, -1, s->st_gid))
 141                                 (void)printf(" not modified: %s\n",
 142                                     strerror(errno));
 143                         else
 144                                 (void)printf(" modified\n");
 145                 else
 146                         (void)printf("\n");
 147                 tab = "\t";
 148         }
 149         if (s->flags & F_MODE &&
 150             !S_ISLNK(p->fts_statp->st_mode) &&
 151             s->st_mode != (p->fts_statp->st_mode & MBITS)) {
 152                 LABEL;
 153                 (void)printf("%spermissions expected %#o found %#o",
 154                     tab, s->st_mode, p->fts_statp->st_mode & MBITS);
 155                 if (uflag)
 156                         if (chmod(p->fts_accpath, s->st_mode))
 157                                 (void)printf(" not modified: %s\n",
 158                                     strerror(errno));
 159                         else
 160                                 (void)printf(" modified\n");
 161                 else
 162                         (void)printf("\n");
 163                 tab = "\t";
 164         }
 165         if (s->flags & F_NLINK && s->type != F_DIR &&
 166             s->st_nlink != p->fts_statp->st_nlink) {
 167                 LABEL;
 168                 (void)printf("%slink_count expected %u found %u\n",
 169                     tab, s->st_nlink, p->fts_statp->st_nlink);
 170                 tab = "\t";
 171         }
 172         if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size &&
 173                 !S_ISDIR(p->fts_statp->st_mode)) {
 174                 LABEL;
 175                 (void)printf("%ssize expected %jd found %jd\n", tab,
 176                     (intmax_t)s->st_size, (intmax_t)p->fts_statp->st_size);
 177                 tab = "\t";
 178         }
 179         /*
 180          * XXX
 181          * Catches nano-second differences, but doesn't display them.
 182          */
 183         if ((s->flags & F_TIME) &&
 184              ((s->st_mtimespec.tv_sec != p->fts_statp->st_mtimespec.tv_sec) ||
 185              (s->st_mtimespec.tv_nsec != p->fts_statp->st_mtimespec.tv_nsec))) {
 186                 LABEL;
 187                 (void)printf("%smodification time expected %.24s ",
 188                     tab, ctime(&s->st_mtimespec.tv_sec));
 189                 (void)printf("found %.24s",
 190                     ctime(&p->fts_statp->st_mtimespec.tv_sec));
 191                 if (uflag) {
 192                         tv[0].tv_sec = s->st_mtimespec.tv_sec;
 193                         tv[0].tv_usec = s->st_mtimespec.tv_nsec / 1000;
 194                         tv[1] = tv[0];
 195                         if (utimes(p->fts_accpath, tv))
 196                                 (void)printf(" not modified: %s\n",
 197                                     strerror(errno));
 198                         else
 199                                 (void)printf(" modified\n");
 200                 } else
 201                         (void)printf("\n");
 202                 tab = "\t";
 203         }
 204         if (s->flags & F_CKSUM) {
 205                 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
 206                         LABEL;
 207                         (void)printf("%scksum: %s: %s\n",
 208                             tab, p->fts_accpath, strerror(errno));
 209                         tab = "\t";
 210                 } else if (crc(fd, &val, &len)) {
 211                         (void)close(fd);
 212                         LABEL;
 213                         (void)printf("%scksum: %s: %s\n",
 214                             tab, p->fts_accpath, strerror(errno));
 215                         tab = "\t";
 216                 } else {
 217                         (void)close(fd);
 218                         if (s->cksum != val) {
 219                                 LABEL;
 220                                 (void)printf("%scksum expected %lu found %lu\n",
 221                                     tab, s->cksum, (unsigned long)val);
 222                                 tab = "\t";
 223                         }
 224                 }
 225         }
 226         if ((s->flags & F_FLAGS) && s->st_flags != p->fts_statp->st_flags) {
 227                 LABEL;
 228                 fflags = flags_to_string(s->st_flags);
 229                 (void)printf("%sflags expected \"%s\"", tab, fflags);
 230                 free(fflags);
 231
 232                 fflags = flags_to_string(p->fts_statp->st_flags);
 233                 (void)printf(" found \"%s\"", fflags);
 234                 free(fflags);
 235
 236                 if (uflag)
 237                         if (chflags(p->fts_accpath, s->st_flags))
 238                                 (void)printf(" not modified: %s\n",
 239                                     strerror(errno));
 240                         else
 241                                 (void)printf(" modified\n");
 242                 else
 243                         (void)printf("\n");
 244                 tab = "\t";
 245         }
 246 #ifdef ENABLE_MD5
 247         if (s->flags & F_MD5) {
 248                 char *new_digest, buf[33];
 249
 250                 new_digest = MD5File(p->fts_accpath, buf);
 251                 if (!new_digest) {
 252                         LABEL;
 253                         printf("%sMD5: %s: %s\n", tab, p->fts_accpath,
 254                                strerror(errno));
 255                         tab = "\t";
 256                 } else if (strcmp(new_digest, s->md5digest)) {
 257                         LABEL;
 258                         printf("%sMD5 expected %s found %s\n", tab, s->md5digest,
 259                                new_digest);
 260                         tab = "\t";
 261                 }
 262         }
 263 #endif /* ENABLE_MD5 */
 264 #ifdef ENABLE_SHA1
 265         if (s->flags & F_SHA1) {
 266                 char *new_digest, buf[41];
 267
 268                 new_digest = SHA1_File(p->fts_accpath, buf);
 269                 if (!new_digest) {
 270                         LABEL;
 271                         printf("%sSHA-1: %s: %s\n", tab, p->fts_accpath,
 272                                strerror(errno));
 273                         tab = "\t";
 274                 } else if (strcmp(new_digest, s->sha1digest)) {
 275                         LABEL;
 276                         printf("%sSHA-1 expected %s found %s\n",
 277                                tab, s->sha1digest, new_digest);
 278                         tab = "\t";
 279                 }
 280         }
 281 #endif /* ENABLE_SHA1 */
 282 #ifdef ENABLE_RMD160
 283         if (s->flags & F_RMD160) {
 284                 char *new_digest, buf[41];
 285
 286                 new_digest = RIPEMD160_File(p->fts_accpath, buf);
 287                 if (!new_digest) {
 288                         LABEL;
 289                         printf("%sRIPEMD160: %s: %s\n", tab,
 290                                p->fts_accpath, strerror(errno));
 291                         tab = "\t";
 292                 } else if (strcmp(new_digest, s->rmd160digest)) {
 293                         LABEL;
 294                         printf("%sRIPEMD160 expected %s found %s\n",
 295                                tab, s->rmd160digest, new_digest);
 296                         tab = "\t";
 297                 }
 298         }
 299 #endif /* ENABLE_RMD160 */
 300 #ifdef ENABLE_SHA256
 301         if (s->flags & F_SHA256) {
 302                 char *new_digest, buf[65];
 303
 304                 new_digest = SHA256_File(p->fts_accpath, buf);
 305                 if (!new_digest) {
 306                         LABEL;
 307                         printf("%sSHA-256: %s: %s\n", tab, p->fts_accpath,
 308                                strerror(errno));
 309                         tab = "\t";
 310                 } else if (strcmp(new_digest, s->sha256digest)) {
 311                         LABEL;
 312                         printf("%sSHA-256 expected %s found %s\n",
 313                                tab, s->sha256digest, new_digest);
 314                         tab = "\t";
 315                 }
 316         }
 317 #endif /* ENABLE_SHA256 */
 318
 319         if (s->flags & F_SLINK &&
 320             strcmp(cp = rlink(p->fts_accpath), s->slink)) {
 321                 LABEL;
 322                 (void)printf("%slink_ref expected %s found %s\n",
 323                       tab, s->slink, cp);
 324         }
 325         return (label);
 326 }
 327
 328 const char *
 329 inotype(u_int type)
 330 {
 331         switch(type & S_IFMT) {
 332         case S_IFBLK:
 333                 return ("block");
 334         case S_IFCHR:
 335                 return ("char");
 336         case S_IFDIR:
 337                 return ("dir");
 338         case S_IFIFO:
 339                 return ("fifo");
 340         case S_IFREG:
 341                 return ("file");
 342         case S_IFLNK:
 343                 return ("link");
 344         case S_IFSOCK:
 345                 return ("socket");
 346         default:
 347                 return ("unknown");
 348         }
 349         /* NOTREACHED */
 350 }
 351
 352 const char *
 353 ftype(u_int type)
 354 {
 355         switch(type) {
 356         case F_BLOCK:
 357                 return ("block");
 358         case F_CHAR:
 359                 return ("char");
 360         case F_DIR:
 361                 return ("dir");
 362         case F_FIFO:
 363                 return ("fifo");
 364         case F_FILE:
 365                 return ("file");
 366         case F_LINK:
 367                 return ("link");
 368         case F_SOCK:
 369                 return ("socket");
 370         default:
 371                 return ("unknown");
 372         }
 373         /* NOTREACHED */
 374 }
 375
 376 char *
 377 rlink(char *name)
 378 {
 379         static char lbuf[MAXPATHLEN * 4];
 380         int len;
 381         char tbuf[MAXPATHLEN];
 382
 383         if ((len = readlink(name, tbuf, sizeof(tbuf) - 1)) == -1)
 384                 err(1, "line %d: %s", lineno, name);
 385         tbuf[len] = '\0';
 386         strvis(lbuf, tbuf, VIS_WHITE | VIS_OCTAL);
 387         return (lbuf);
 388 }