usr.sbin/ctm/mkCTM/mkctm.c

   1 /* $FreeBSD$ */
   2
   3 /* Still missing:
   4  *
   5  * mkctm
   6  *      -B regex        Bogus
   7  *      -I regex        Ignore
   8  *      -D int          Damage
   9  *      -q              decrease verbosity
  10  *      -v              increase verbosity
  11  *      -l file         logfile
  12  *      name            cvs-cur
  13  *      prefix          src/secure
  14  *      dir1            "Soll"
  15  *      dir2            "Ist"
  16  *
  17  * $FreeBSD$
  18  */
  19
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <sys/mman.h>
  23 #include <sys/wait.h>
  24 #include <dirent.h>
  25 #include <regex.h>
  26 #include <stdio.h>
  27 #include <fcntl.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <md5.h>
  32 #include <err.h>
  33 #include <paths.h>
  34 #include <signal.h>
  35
  36 #define DEFAULT_IGNORE  "/CVS$|/\\.#|00_TRANS\\.TBL$"
  37 #define DEFAULT_BOGUS   "\\.core$|\\.orig$|\\.rej$|\\.o$"
  38 regex_t reg_ignore,  reg_bogus;
  39 int     flag_ignore, flag_bogus;
  40
  41 int     verbose;
  42 int     damage, damage_limit;
  43 int     change;
  44
  45 FILE    *logf;
  46
  47 u_long s1_ignored,      s2_ignored;
  48 u_long s1_bogus,        s2_bogus;
  49 u_long s1_wrong,        s2_wrong;
  50 u_long s_new_dirs,      s_new_files,    s_new_bytes;
  51 u_long s_del_dirs,      s_del_files,                    s_del_bytes;
  52 u_long                  s_files_chg,    s_bytes_add,    s_bytes_del;
  53 u_long s_same_dirs,     s_same_files,   s_same_bytes;
  54 u_long                  s_edit_files,   s_edit_bytes,   s_edit_saves;
  55 u_long                  s_sub_files,    s_sub_bytes;
  56
  57 void
  58 Usage(void)
  59 {
  60         fprintf(stderr,
  61                 "usage: mkctm [-options] name number timestamp prefix dir1 dir2\n");
  62         fprintf(stderr, "options:\n");
  63         fprintf(stderr, "\t\t-B bogus_regexp\n");
  64         fprintf(stderr, "\t\t-D damage_limit\n");
  65         fprintf(stderr, "\t\t-I ignore_regexp\n");
  66         fprintf(stderr, "\t\t-q\n");
  67         fprintf(stderr, "\t\t-v\n");
  68 }
  69
  70 void
  71 print_stat(FILE *fd, char *pre)
  72 {
  73     fprintf(fd, "%sNames:\n", pre);
  74     fprintf(fd, "%s  ignore:  %5lu ref   %5lu target\n",
  75             pre, s1_ignored, s2_ignored);
  76     fprintf(fd, "%s  bogus:   %5lu ref   %5lu target\n",
  77             pre, s1_bogus, s2_bogus);
  78     fprintf(fd, "%s  wrong:   %5lu ref   %5lu target\n",
  79             pre, s1_wrong, s2_wrong);
  80     fprintf(fd, "%sDelta:\n", pre);
  81     fprintf(fd, "%s  new:     %5lu dirs  %5lu files  %9lu plus\n",
  82             pre, s_new_dirs, s_new_files, s_new_bytes);
  83     fprintf(fd, "%s  del:     %5lu dirs  %5lu files                   %9lu minus\n",
  84             pre, s_del_dirs, s_del_files, s_del_bytes);
  85     fprintf(fd, "%s  chg:                 %5lu files  %9lu plus   %9lu minus\n",
  86             pre, s_files_chg, s_bytes_add, s_bytes_del);
  87     fprintf(fd, "%s  same:    %5lu dirs  %5lu files  %9lu bytes\n",
  88             pre, s_same_dirs, s_same_files, s_same_bytes);
  89     fprintf(fd, "%sMethod:\n", pre);
  90     fprintf(fd, "%s  edit:                %5lu files  %9lu bytes  %9lu saved\n",
  91             pre, s_edit_files, s_edit_bytes, s_edit_saves);
  92     fprintf(fd, "%s  sub:                 %5lu files  %9lu bytes\n",
  93             pre, s_sub_files, s_sub_bytes);
  94
  95 }
  96
  97 void
  98 stat_info(int foo)
  99 {
 100         signal(SIGINFO, stat_info);
 101         print_stat(stderr, "INFO: ");
 102 }
 103
 104 void DoDir(const char *dir1, const char *dir2, const char *name);
 105
 106 static struct stat st;
 107 static __inline struct stat *
 108 StatFile(char *name)
 109 {
 110         if (lstat(name, &st) < 0)
 111                 err(1, "couldn't stat %s", name);
 112         return &st;
 113 }
 114
 115 int
 116 dirselect(struct dirent *de)
 117 {
 118         if (!strcmp(de->d_name, "."))   return 0;
 119         if (!strcmp(de->d_name, ".."))  return 0;
 120         return 1;
 121 }
 122
 123 void
 124 name_stat(const char *pfx, const char *dir, const char *name, struct dirent *de)
 125 {
 126         char *buf = alloca(strlen(dir) + strlen(name) +
 127                 strlen(de->d_name) + 3);
 128         struct stat *st;
 129
 130         strcpy(buf, dir);
 131                 strcat(buf, "/"); strcat(buf, name);
 132                 strcat(buf, "/"); strcat(buf, de->d_name);
 133         st = StatFile(buf);
 134         printf("%s %s%s %u %u %o",
 135             pfx, name, de->d_name,
 136             st->st_uid, st->st_gid, st->st_mode & ~S_IFMT);
 137         fprintf(logf, "%s %s%s\n", pfx, name, de->d_name);
 138         if (verbose > 1) {
 139                 fprintf(stderr, "%s %s%s\n", pfx, name, de->d_name);
 140         }
 141 }
 142
 143 void
 144 Equ(const char *dir1, const char *dir2, const char *name, struct dirent *de)
 145 {
 146         if (de->d_type == DT_DIR) {
 147                 char *p = alloca(strlen(name)+strlen(de->d_name)+2);
 148
 149                 strcpy(p, name);  strcat(p, de->d_name); strcat(p, "/");
 150                 DoDir(dir1, dir2, p);
 151                 s_same_dirs++;
 152         } else {
 153                 char *buf1 = alloca(strlen(dir1) + strlen(name) +
 154                         strlen(de->d_name) + 3);
 155                 char *buf2 = alloca(strlen(dir2) + strlen(name) +
 156                         strlen(de->d_name) + 3);
 157                 char *m1, md5_1[33], *m2, md5_2[33];
 158                 u_char *p1, *p2;
 159                 int fd1, fd2;
 160                 struct stat s1, s2;
 161
 162                 strcpy(buf1, dir1);
 163                         strcat(buf1, "/"); strcat(buf1, name);
 164                         strcat(buf1, "/"); strcat(buf1, de->d_name);
 165                 fd1 = open(buf1, O_RDONLY);
 166                 if(fd1 < 0) { err(3, "%s", buf1); }
 167                 fstat(fd1, &s1);
 168                 strcpy(buf2, dir2);
 169                         strcat(buf2, "/"); strcat(buf2, name);
 170                         strcat(buf2, "/"); strcat(buf2, de->d_name);
 171                 fd2 = open(buf2, O_RDONLY);
 172                 if(fd2 < 0) { err(3, "%s", buf2); }
 173                 fstat(fd2, &s2);
 174 #if 0
 175                 /* XXX if we could just trust the size to change... */
 176                 if (s1.st_size == s2.st_size) {
 177                         s_same_files++;
 178                         s_same_bytes += s1.st_size;
 179                         close(fd1);
 180                         close(fd2);
 181                         goto finish;
 182                 }
 183 #endif
 184                 p1=mmap(0, s1.st_size, PROT_READ, MAP_PRIVATE, fd1, 0);
 185                 if (p1 == (u_char *)MAP_FAILED) { err(3, "%s", buf1); }
 186                 close(fd1);
 187
 188                 p2=mmap(0, s2.st_size, PROT_READ, MAP_PRIVATE, fd2, 0);
 189                 if (p2 == (u_char *)MAP_FAILED) { err(3, "%s", buf2); }
 190                 close(fd2);
 191
 192                 /* If identical, we're done. */
 193                 if((s1.st_size == s2.st_size) && !memcmp(p1, p2, s1.st_size)) {
 194                         s_same_files++;
 195                         s_same_bytes += s1.st_size;
 196                         goto finish;
 197                 }
 198
 199                 s_files_chg++;
 200                 change++;
 201                 if (s1.st_size > s2.st_size)
 202                         s_bytes_del += (s1.st_size - s2.st_size);
 203                 else
 204                         s_bytes_add += (s2.st_size - s1.st_size);
 205
 206                 m1 = MD5Data(p1, s1.st_size, md5_1);
 207                 m2 = MD5Data(p2, s2.st_size, md5_2);
 208
 209                 /* Just a curiosity... */
 210                 if(!strcmp(m1, m2)) {
 211                         if (s1.st_size != s2.st_size)
 212                                 fprintf(stderr,
 213                 "Notice: MD5 same for files of diffent size:\n\t%s\n\t%s\n",
 214                                         buf1, buf2);
 215                         goto finish;
 216                 }
 217
 218                 {
 219                         u_long l = s2.st_size + 2;
 220                         u_char *cmd = alloca(strlen(buf1)+strlen(buf2)+100);
 221                         u_char *ob = malloc(l), *p;
 222                         int j;
 223                         FILE *F;
 224
 225                         if (s1.st_size && p1[s1.st_size-1] != '\n') {
 226                                 if (verbose > 0)
 227                                         fprintf(stderr,
 228                                             "last char != \\n in %s\n",
 229                                              buf1);
 230                                 goto subst;
 231                         }
 232
 233                         if (s2.st_size && p2[s2.st_size-1] != '\n') {
 234                                 if (verbose > 0)
 235                                         fprintf(stderr,
 236                                             "last char != \\n in %s\n",
 237                                              buf2);
 238                                 goto subst;
 239                         }
 240
 241                         for (p=p1; p<p1+s1.st_size; p++)
 242                                 if (!*p) {
 243                                         if (verbose > 0)
 244                                                 fprintf(stderr,
 245                                                     "NULL char in %s\n",
 246                                                      buf1);
 247                                         goto subst;
 248                                 }
 249
 250                         for (p=p2; p<p2+s2.st_size; p++)
 251                                 if (!*p) {
 252                                         if (verbose > 0)
 253                                                 fprintf(stderr,
 254                                                     "NULL char in %s\n",
 255                                                      buf2);
 256                                         goto subst;
 257                                 }
 258
 259                         strcpy(cmd, "diff -n ");
 260                         strcat(cmd, buf1);
 261                         strcat(cmd, " ");
 262                         strcat(cmd, buf2);
 263                         F = popen(cmd, "r");
 264                         for (j = 1, l = 0; l < s2.st_size; ) {
 265                                 j = fread(ob+l, 1, s2.st_size - l, F);
 266                                 if (j < 1)
 267                                         break;
 268                                 l += j;
 269                                 continue;
 270                         }
 271                         if (j) {
 272                                 l = 0;
 273                                 while (EOF != fgetc(F))
 274                                         continue;
 275                         }
 276                         pclose(F);
 277
 278                         if (l && l < s2.st_size) {
 279                                 name_stat("CTMFN", dir2, name, de);
 280                                 printf(" %s %s %d\n", m1, m2, (unsigned)l);
 281                                 fwrite(ob, 1, l, stdout);
 282                                 putchar('\n');
 283                                 s_edit_files++;
 284                                 s_edit_bytes += l;
 285                                 s_edit_saves += (s2.st_size - l);
 286                         } else {
 287                         subst:
 288                                 name_stat("CTMFS", dir2, name, de);
 289                                 printf(" %s %s %u\n", m1, m2, (unsigned)s2.st_size);
 290                                 fwrite(p2, 1, s2.st_size, stdout);
 291                                 putchar('\n');
 292                                 s_sub_files++;
 293                                 s_sub_bytes += s2.st_size;
 294                         }
 295                         free(ob);
 296                 }
 297             finish:
 298                 munmap(p1, s1.st_size);
 299                 munmap(p2, s2.st_size);
 300         }
 301 }
 302
 303 void
 304 Add(const char *dir1, const char *dir2, const char *name, struct dirent *de)
 305 {
 306         change++;
 307         if (de->d_type == DT_DIR) {
 308                 char *p = alloca(strlen(name)+strlen(de->d_name)+2);
 309                 strcpy(p, name);  strcat(p, de->d_name); strcat(p, "/");
 310                 name_stat("CTMDM", dir2, name, de);
 311                 putchar('\n');
 312                 s_new_dirs++;
 313                 DoDir(dir1, dir2, p);
 314         } else if (de->d_type == DT_REG) {
 315                 char *buf2 = alloca(strlen(dir2) + strlen(name) +
 316                         strlen(de->d_name) + 3);
 317                 char *m2, md5_2[33];
 318                 u_char *p1;
 319                 struct stat st;
 320                 int fd1;
 321
 322                 strcpy(buf2, dir2);
 323                         strcat(buf2, "/"); strcat(buf2, name);
 324                         strcat(buf2, "/"); strcat(buf2, de->d_name);
 325                 fd1 = open(buf2, O_RDONLY);
 326                 if (fd1 < 0) { err(3, "%s", buf2); }
 327                 fstat(fd1, &st);
 328                 p1=mmap(0, st.st_size, PROT_READ, MAP_PRIVATE, fd1, 0);
 329                 if (p1 == (u_char *)MAP_FAILED) { err(3, "%s", buf2); }
 330                 close(fd1);
 331                 m2 = MD5Data(p1, st.st_size, md5_2);
 332                 name_stat("CTMFM", dir2, name, de);
 333                 printf(" %s %u\n", m2, (unsigned)st.st_size);
 334                 fwrite(p1, 1, st.st_size, stdout);
 335                 putchar('\n');
 336                 munmap(p1, st.st_size);
 337                 s_new_files++;
 338                 s_new_bytes += st.st_size;
 339         }
 340 }
 341
 342 void
 343 Del (const char *dir1, const char *dir2, const char *name, struct dirent *de)
 344 {
 345         damage++;
 346         change++;
 347         if (de->d_type == DT_DIR) {
 348                 char *p = alloca(strlen(name)+strlen(de->d_name)+2);
 349                 strcpy(p, name);  strcat(p, de->d_name); strcat(p, "/");
 350                 DoDir(dir1, dir2, p);
 351                 printf("CTMDR %s%s\n", name, de->d_name);
 352                 fprintf(logf, "CTMDR %s%s\n", name, de->d_name);
 353                 if (verbose > 1) {
 354                         fprintf(stderr, "CTMDR %s%s\n", name, de->d_name);
 355                 }
 356                 s_del_dirs++;
 357         } else if (de->d_type == DT_REG) {
 358                 char *buf1 = alloca(strlen(dir1) + strlen(name) +
 359                         strlen(de->d_name) + 3);
 360                 char *m1, md5_1[33];
 361                 strcpy(buf1, dir1);
 362                         strcat(buf1, "/"); strcat(buf1, name);
 363                         strcat(buf1, "/"); strcat(buf1, de->d_name);
 364                 m1 = MD5File(buf1, md5_1);
 365                 printf("CTMFR %s%s %s\n", name, de->d_name, m1);
 366                 fprintf(logf, "CTMFR %s%s %s\n", name, de->d_name, m1);
 367                 if (verbose > 1) {
 368                         fprintf(stderr, "CTMFR %s%s\n", name, de->d_name);
 369                 }
 370                 s_del_files++;
 371                 s_del_bytes += StatFile(buf1)->st_size;
 372         }
 373 }
 374
 375 void
 376 GetNext(int *i, int *n, struct dirent **nl, const char *dir, const char *name, u_long *ignored, u_long *bogus, u_long *wrong)
 377 {
 378         char buf[BUFSIZ];
 379         char buf1[BUFSIZ];
 380
 381         for (;;) {
 382                 for (;;) {
 383                         (*i)++;
 384                         if (*i >= *n)
 385                                 return;
 386                         strcpy(buf1, name);
 387                         if (buf1[strlen(buf1)-1] != '/')
 388                                 strcat(buf1, "/");
 389                         strcat(buf1, nl[*i]->d_name);
 390                         if (flag_ignore &&
 391                             !regexec(&reg_ignore, buf1, 0, 0, 0)) {
 392                                 (*ignored)++;
 393                                 fprintf(logf, "Ignore %s\n", buf1);
 394                                 if (verbose > 2) {
 395                                         fprintf(stderr, "Ignore %s\n", buf1);
 396                                 }
 397                         } else if (flag_bogus &&
 398                             !regexec(&reg_bogus, buf1, 0, 0, 0)) {
 399                                 (*bogus)++;
 400                                 fprintf(logf, "Bogus %s\n", buf1);
 401                                 fprintf(stderr, "Bogus %s\n", buf1);
 402                                 damage++;
 403                         } else {
 404                                 *buf = 0;
 405                                 if (*dir != '/')
 406                                         strcat(buf, "/");
 407                                 strcat(buf, dir);
 408                                 if (buf[strlen(buf)-1] != '/')
 409                                         strcat(buf, "/");
 410                                 strcat(buf, buf1);
 411                                 break;
 412                         }
 413                         free(nl[*i]); nl[*i] = 0;
 414                 }
 415                 /* If the filesystem didn't tell us, find type */
 416                 if (nl[*i]->d_type == DT_UNKNOWN)
 417                         nl[*i]->d_type = IFTODT(StatFile(buf)->st_mode);
 418                 if (nl[*i]->d_type == DT_REG || nl[*i]->d_type == DT_DIR)
 419                         break;
 420                 (*wrong)++;
 421                 if (verbose > 0)
 422                         fprintf(stderr, "Wrong %s\n", buf);
 423                 free(nl[*i]); nl[*i] = 0;
 424         }
 425 }
 426
 427 void
 428 DoDir(const char *dir1, const char *dir2, const char *name)
 429 {
 430         int i1, i2, n1, n2, i;
 431         struct dirent **nl1, **nl2;
 432         char *buf1 = alloca(strlen(dir1) + strlen(name) + 4);
 433         char *buf2 = alloca(strlen(dir2) + strlen(name) + 4);
 434
 435         strcpy(buf1, dir1); strcat(buf1, "/"); strcat(buf1, name);
 436         strcpy(buf2, dir2); strcat(buf2, "/"); strcat(buf2, name);
 437         n1 = scandir(buf1, &nl1, dirselect, alphasort);
 438         n2 = scandir(buf2, &nl2, dirselect, alphasort);
 439         i1 = i2 = -1;
 440         GetNext(&i1, &n1, nl1, dir1, name, &s1_ignored, &s1_bogus, &s1_wrong);
 441         GetNext(&i2, &n2, nl2, dir2, name, &s2_ignored, &s2_bogus, &s2_wrong);
 442         for (;i1 < n1 || i2 < n2;) {
 443
 444                 if (damage_limit && damage > damage_limit)
 445                         break;
 446
 447                 /* Get next item from list 1 */
 448                 if (i1 < n1 && !nl1[i1])
 449                         GetNext(&i1, &n1, nl1, dir1, name,
 450                                 &s1_ignored, &s1_bogus, &s1_wrong);
 451
 452                 /* Get next item from list 2 */
 453                 if (i2 < n2 && !nl2[i2])
 454                         GetNext(&i2, &n2, nl2, dir2, name,
 455                                 &s2_ignored, &s2_bogus, &s2_wrong);
 456
 457                 if (i1 >= n1 && i2 >= n2) {
 458                         /* Done */
 459                         break;
 460                 } else if (i1 >= n1 && i2 < n2) {
 461                         /* end of list 1, add anything left on list 2 */
 462                         Add(dir1, dir2, name, nl2[i2]);
 463                         free(nl2[i2]); nl2[i2] = 0;
 464                 } else if (i1 < n1 && i2 >= n2) {
 465                         /* end of list 2, delete anything left on list 1 */
 466                         Del(dir1, dir2, name, nl1[i1]);
 467                         free(nl1[i1]); nl1[i1] = 0;
 468                 } else if (!(i = strcmp(nl1[i1]->d_name, nl2[i2]->d_name))) {
 469                         /* Identical names */
 470                         if (nl1[i1]->d_type == nl2[i2]->d_type) {
 471                                 /* same type */
 472                                 Equ(dir1, dir2, name, nl1[i1]);
 473                         } else {
 474                                 /* different types */
 475                                 Del(dir1, dir2, name, nl1[i1]);
 476                                 Add(dir1, dir2, name, nl2[i2]);
 477                         }
 478                         free(nl1[i1]); nl1[i1] = 0;
 479                         free(nl2[i2]); nl2[i2] = 0;
 480                 } else if (i < 0) {
 481                         /* Something extra in list 1, delete it */
 482                         Del(dir1, dir2, name, nl1[i1]);
 483                         free(nl1[i1]); nl1[i1] = 0;
 484                 } else {
 485                         /* Something extra in list 2, add it */
 486                         Add(dir1, dir2, name, nl2[i2]);
 487                         free(nl2[i2]); nl2[i2] = 0;
 488                 }
 489         }
 490         if (n1 >= 0)
 491                 free(nl1);
 492         if (n2 >= 0)
 493                 free(nl2);
 494 }
 495
 496 int
 497 main(int argc, char **argv)
 498 {
 499         int i;
 500
 501         setbuf(stderr, NULL);
 502
 503 #if 0
 504         if (regcomp(&reg_bogus, DEFAULT_BOGUS, REG_EXTENDED | REG_NEWLINE))
 505                 /* XXX use regerror to explain it */
 506                 errx(1, "default regular expression argument to -B is botched");
 507         flag_bogus = 1;
 508
 509         if (regcomp(&reg_ignore, DEFAULT_IGNORE, REG_EXTENDED | REG_NEWLINE))
 510                 /* XXX use regerror to explain it */
 511                 errx(1, "default regular expression argument to -I is botched");
 512         flag_ignore = 1;
 513 #endif
 514
 515         while ((i = getopt(argc, argv, "D:I:B:l:qv")) != -1)
 516                 switch (i) {
 517                 case 'D':
 518                         damage_limit = strtol(optarg, 0, 0);
 519                         if (damage_limit < 0)
 520                                 errx(1, "damage limit must be positive");
 521                         break;
 522                 case 'I':
 523                         if (flag_ignore)
 524                                 regfree(&reg_ignore);
 525                         flag_ignore = 0;
 526                         if (!*optarg)
 527                                 break;
 528                         if (regcomp(&reg_ignore, optarg,
 529                             REG_EXTENDED | REG_NEWLINE))
 530                                 /* XXX use regerror to explain it */
 531                                 errx(1, "regular expression argument to -I is botched");
 532                         flag_ignore = 1;
 533                         break;
 534                 case 'B':
 535                         if (flag_bogus)
 536                                 regfree(&reg_bogus);
 537                         flag_bogus = 0;
 538                         if (!*optarg)
 539                                 break;
 540                         if (regcomp(&reg_bogus, optarg,
 541                             REG_EXTENDED | REG_NEWLINE))
 542                                 /* XXX use regerror to explain it */
 543                                 errx(1, "regular expression argument to -B is botched");
 544                         flag_bogus = 1;
 545                         break;
 546                 case 'l':
 547                         logf = fopen(optarg, "w");
 548                         if (!logf)
 549                                 err(1, "%s", optarg);
 550                         setlinebuf(logf);
 551                         break;
 552                 case 'q':
 553                         verbose--;
 554                         break;
 555                 case 'v':
 556                         verbose++;
 557                         break;
 558                 case '?':
 559                 default:
 560                         Usage();
 561                         return (1);
 562                 }
 563         argc -= optind;
 564         argv += optind;
 565
 566         if (!logf)
 567                 logf = fopen(_PATH_DEVNULL, "w");
 568
 569         setbuf(stdout, 0);
 570
 571         if (argc != 6) {
 572                 Usage();
 573                 return (1);
 574         }
 575
 576         signal(SIGINFO, stat_info);
 577
 578         fprintf(stderr, "CTM_BEGIN 2.0 %s %s %s %s\n",
 579                 argv[0], argv[1], argv[2], argv[3]);
 580         fprintf(logf, "CTM_BEGIN 2.0 %s %s %s %s\n",
 581                 argv[0], argv[1], argv[2], argv[3]);
 582         printf("CTM_BEGIN 2.0 %s %s %s %s\n",
 583                 argv[0], argv[1], argv[2], argv[3]);
 584         DoDir(argv[4], argv[5], "");
 585         if (damage_limit && damage > damage_limit) {
 586                 print_stat(stderr, "DAMAGE: ");
 587                 errx(1, "damage of %d would exceed %d files",
 588                         damage, damage_limit);
 589         } else if (change < 2) {
 590                 errx(4, "no changes");
 591         } else {
 592                 printf("CTM_END ");
 593                 fprintf(logf, "CTM_END\n");
 594                 print_stat(stderr, "END: ");
 595         }
 596         exit(0);
 597 }