usr.sbin/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  * @(#)compare.c        8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: src/usr.sbin/mtree/compare.c,v 1.15.2.4 2003/05/07 17:55:17 tobez Exp $
  31  * $DragonFly: src/usr.sbin/mtree/compare.c,v 1.5 2004/03/15 16:24:22 dillon Exp $
  32  */
  33
  34 #include <sys/param.h>
  35 #include <sys/stat.h>
  36 #include <err.h>
  37 #include <errno.h>
  38 #include <fcntl.h>
  39 #include <fts.h>
  40 #ifdef MD5
  41 #include <md5.h>
  42 #endif
  43 #ifdef SHA1
  44 #include <sha.h>
  45 #endif
  46 #ifdef RMD160
  47 #include <ripemd.h>
  48 #endif
  49 #include <stdio.h>
  50 #include <time.h>
  51 #include <unistd.h>
  52 #include "mtree.h"
  53 #include "extern.h"
  54
  55 static const char *ftype(u_int);
  56
  57 #define INDENTNAMELEN   8
  58 #define LABEL \
  59         if (!label++) { \
  60                 len = printf("%s changed\n", RP(p)); \
  61                 tab = "\t"; \
  62         }
  63
  64 int
  65 compare(NODE *s, FTSENT *p)
  66 {
  67         u_long len, val;
  68         int fd, label;
  69         char *cp, *fflags;
  70         const char *tab = "";
  71
  72         label = 0;
  73         switch(s->type) {
  74         case F_BLOCK:
  75                 if (!S_ISBLK(p->fts_statp->st_mode))
  76                         goto typeerr;
  77                 break;
  78         case F_CHAR:
  79                 if (!S_ISCHR(p->fts_statp->st_mode))
  80                         goto typeerr;
  81                 break;
  82         case F_DIR:
  83                 if (!S_ISDIR(p->fts_statp->st_mode))
  84                         goto typeerr;
  85                 break;
  86         case F_FIFO:
  87                 if (!S_ISFIFO(p->fts_statp->st_mode))
  88                         goto typeerr;
  89                 break;
  90         case F_FILE:
  91                 if (!S_ISREG(p->fts_statp->st_mode))
  92                         goto typeerr;
  93                 break;
  94         case F_LINK:
  95                 if (!S_ISLNK(p->fts_statp->st_mode))
  96                         goto typeerr;
  97                 break;
  98         case F_SOCK:
  99                 if (!S_ISSOCK(p->fts_statp->st_mode)) {
 100 typeerr:                LABEL;
 101                         printf("\ttype expected %s found %s\n",
 102                             ftype(s->type), inotype(p->fts_statp->st_mode));
 103                         return (label);
 104                 }
 105                 break;
 106         }
 107         /* Set the uid/gid first, then set the mode. */
 108         if (s->flags & (F_UID | F_UNAME) && s->st_uid != p->fts_statp->st_uid) {
 109                 LABEL;
 110                 printf("%suser expected %lu found %lu",
 111                     tab, (u_long)s->st_uid, (u_long)p->fts_statp->st_uid);
 112                 if (uflag)
 113                         if (chown(p->fts_accpath, s->st_uid, -1))
 114                                 printf(" not modified: %s\n",
 115                                     strerror(errno));
 116                         else
 117                                 printf(" modified\n");
 118                 else
 119                         printf("\n");
 120                 tab = "\t";
 121         }
 122         if (s->flags & (F_GID | F_GNAME) && s->st_gid != p->fts_statp->st_gid) {
 123                 LABEL;
 124                 printf("%sgid expected %lu found %lu",
 125                     tab, (u_long)s->st_gid, (u_long)p->fts_statp->st_gid);
 126                 if (uflag)
 127                         if (chown(p->fts_accpath, -1, s->st_gid))
 128                                 printf(" not modified: %s\n",
 129                                     strerror(errno));
 130                         else
 131                                 printf(" modified\n");
 132                 else
 133                         printf("\n");
 134                 tab = "\t";
 135         }
 136         if (s->flags & F_MODE &&
 137             !S_ISLNK(p->fts_statp->st_mode) &&
 138             s->st_mode != (p->fts_statp->st_mode & MBITS)) {
 139                 LABEL;
 140                 printf("%spermissions expected %#o found %#o",
 141                     tab, s->st_mode, p->fts_statp->st_mode & MBITS);
 142                 if (uflag)
 143                         if (chmod(p->fts_accpath, s->st_mode))
 144                                 printf(" not modified: %s\n",
 145                                     strerror(errno));
 146                         else
 147                                 printf(" modified\n");
 148                 else
 149                         printf("\n");
 150                 tab = "\t";
 151         }
 152         if (s->flags & F_NLINK && s->type != F_DIR &&
 153             s->st_nlink != p->fts_statp->st_nlink) {
 154                 LABEL;
 155                 printf("%slink_count expected %u found %u\n",
 156                     tab, s->st_nlink, p->fts_statp->st_nlink);
 157                 tab = "\t";
 158         }
 159         if (s->flags & F_SIZE && s->st_size != p->fts_statp->st_size &&
 160                 !S_ISDIR(p->fts_statp->st_mode)) {
 161                 LABEL;
 162                 printf("%ssize expected %jd found %jd\n", tab,
 163                     (intmax_t)s->st_size, (intmax_t)p->fts_statp->st_size);
 164                 tab = "\t";
 165         }
 166         /*
 167          * XXX
 168          * Catches nano-second differences, but doesn't display them.
 169          */
 170         if ((s->flags & F_TIME) &&
 171              ((s->st_mtimespec.tv_sec != p->fts_statp->st_mtimespec.tv_sec) ||
 172              (s->st_mtimespec.tv_nsec != p->fts_statp->st_mtimespec.tv_nsec))) {
 173                 LABEL;
 174                 printf("%smodification time expected %.24s ",
 175                     tab, ctime(&s->st_mtimespec.tv_sec));
 176                 printf("found %.24s\n",
 177                     ctime(&p->fts_statp->st_mtimespec.tv_sec));
 178                 tab = "\t";
 179         }
 180         if (s->flags & F_CKSUM) {
 181                 if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0) {
 182                         LABEL;
 183                         printf("%scksum: %s: %s\n",
 184                             tab, p->fts_accpath, strerror(errno));
 185                         tab = "\t";
 186                 } else if (crc(fd, &val, &len)) {
 187                         close(fd);
 188                         LABEL;
 189                         printf("%scksum: %s: %s\n",
 190                             tab, p->fts_accpath, strerror(errno));
 191                         tab = "\t";
 192                 } else {
 193                         close(fd);
 194                         if (s->cksum != val) {
 195                                 LABEL;
 196                                 printf("%scksum expected %lu found %lu\n",
 197                                     tab, s->cksum, val);
 198                                 tab = "\t";
 199                         }
 200                 }
 201         }
 202         /*
 203          * XXX
 204          * since chflags(2) will reset file times, the utimes() above
 205          * may have been useless!  oh well, we'd rather have correct
 206          * flags, rather than times?
 207          */
 208         if ((s->flags & F_FLAGS) && s->st_flags != p->fts_statp->st_flags) {
 209                 LABEL;
 210                 fflags = flags_to_string(s->st_flags);
 211                 printf("%sflags expected \"%s\"", tab, fflags);
 212                 free(fflags);
 213
 214                 fflags = flags_to_string(p->fts_statp->st_flags);
 215                 printf(" found \"%s\"", fflags);
 216                 free(fflags);
 217
 218                 if (uflag)
 219                         if (chflags(p->fts_accpath, s->st_flags))
 220                                 printf(" not modified: %s\n",
 221                                     strerror(errno));
 222                         else
 223                                 printf(" modified\n");
 224                 else
 225                         printf("\n");
 226                 tab = "\t";
 227         }
 228 #ifdef MD5
 229         if (s->flags & F_MD5) {
 230                 char *new_digest, buf[33];
 231
 232                 new_digest = MD5File(p->fts_accpath, buf);
 233                 if (!new_digest) {
 234                         LABEL;
 235                         printf("%sMD5: %s: %s\n", tab, p->fts_accpath,
 236                                strerror(errno));
 237                         tab = "\t";
 238                 } else if (strcmp(new_digest, s->md5digest)) {
 239                         LABEL;
 240                         printf("%sMD5 expected %s found %s\n", tab, s->md5digest,
 241                                new_digest);
 242                         tab = "\t";
 243                 }
 244         }
 245 #endif /* MD5 */
 246 #ifdef SHA1
 247         if (s->flags & F_SHA1) {
 248                 char *new_digest, buf[41];
 249
 250                 new_digest = SHA1_File(p->fts_accpath, buf);
 251                 if (!new_digest) {
 252                         LABEL;
 253                         printf("%sSHA-1: %s: %s\n", tab, p->fts_accpath,
 254                                strerror(errno));
 255                         tab = "\t";
 256                 } else if (strcmp(new_digest, s->sha1digest)) {
 257                         LABEL;
 258                         printf("%sSHA-1 expected %s found %s\n",
 259                                tab, s->sha1digest, new_digest);
 260                         tab = "\t";
 261                 }
 262         }
 263 #endif /* SHA1 */
 264 #ifdef RMD160
 265         if (s->flags & F_RMD160) {
 266                 char *new_digest, buf[41];
 267
 268                 new_digest = RIPEMD160_File(p->fts_accpath, buf);
 269                 if (!new_digest) {
 270                         LABEL;
 271                         printf("%sRIPEMD160: %s: %s\n", tab,
 272                                p->fts_accpath, strerror(errno));
 273                         tab = "\t";
 274                 } else if (strcmp(new_digest, s->rmd160digest)) {
 275                         LABEL;
 276                         printf("%sRIPEMD160 expected %s found %s\n",
 277                                tab, s->rmd160digest, new_digest);
 278                         tab = "\t";
 279                 }
 280         }
 281 #endif /* RMD160 */
 282
 283         if (s->flags & F_SLINK &&
 284             strcmp(cp = rlink(p->fts_accpath), s->slink)) {
 285                 LABEL;
 286                 printf("%slink_ref expected %s found %s\n",
 287                       tab, s->slink, cp);
 288         }
 289         return (label);
 290 }
 291
 292 const char *
 293 inotype(u_int type)
 294 {
 295         switch(type & S_IFMT) {
 296         case S_IFBLK:
 297                 return ("block");
 298         case S_IFCHR:
 299                 return ("char");
 300         case S_IFDIR:
 301                 return ("dir");
 302         case S_IFIFO:
 303                 return ("fifo");
 304         case S_IFREG:
 305                 return ("file");
 306         case S_IFLNK:
 307                 return ("link");
 308         case S_IFSOCK:
 309                 return ("socket");
 310         default:
 311                 return ("unknown");
 312         }
 313         /* NOTREACHED */
 314 }
 315
 316 static const char *
 317 ftype(u_int type)
 318 {
 319         switch(type) {
 320         case F_BLOCK:
 321                 return ("block");
 322         case F_CHAR:
 323                 return ("char");
 324         case F_DIR:
 325                 return ("dir");
 326         case F_FIFO:
 327                 return ("fifo");
 328         case F_FILE:
 329                 return ("file");
 330         case F_LINK:
 331                 return ("link");
 332         case F_SOCK:
 333                 return ("socket");
 334         default:
 335                 return ("unknown");
 336         }
 337         /* NOTREACHED */
 338 }
 339
 340 char *
 341 rlink(char *name)
 342 {
 343         static char lbuf[MAXPATHLEN];
 344         int len;
 345
 346         if ((len = readlink(name, lbuf, sizeof(lbuf) - 1)) == -1)
 347                 err(1, "line %d: %s", lineno, name);
 348         lbuf[len] = '\0';
 349         return (lbuf);
 350 }