usr.bin/whereis/whereis.c

   1 /*
   2  * Copyright © 2002, Jörg Wunsch
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
  17  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  19  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  21  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  22  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  23  * POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 /*
  27  * 4.3BSD UI-compatible whereis(1) utility.  Rewritten from scratch
  28  * since the original 4.3BSD version suffers legal problems that
  29  * prevent it from being redistributed, and since the 4.4BSD version
  30  * was pretty inferior in functionality.
  31  */
  32
  33 #include <sys/types.h>
  34
  35 __FBSDID("$FreeBSD$");
  36
  37 #include <sys/stat.h>
  38 #include <sys/sysctl.h>
  39
  40 #include <dirent.h>
  41 #include <err.h>
  42 #include <errno.h>
  43 #include <locale.h>
  44 #include <regex.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <sysexits.h>
  49 #include <unistd.h>
  50
  51 #include "pathnames.h"
  52
  53 #define NO_BIN_FOUND    1
  54 #define NO_MAN_FOUND    2
  55 #define NO_SRC_FOUND    4
  56
  57 typedef const char *ccharp;
  58
  59 static int opt_a, opt_b, opt_m, opt_q, opt_s, opt_u, opt_x;
  60 static ccharp *bindirs, *mandirs, *sourcedirs;
  61 static char **query;
  62
  63 static const char *sourcepath = PATH_SOURCES;
  64
  65 static char     *colonify(ccharp *);
  66 static int       contains(ccharp *, const char *);
  67 static void      decolonify(char *, ccharp **, int *);
  68 static void      defaults(void);
  69 static void      scanopts(int, char **);
  70 static void      usage(void);
  71
  72 /*
  73  * Throughout this program, a number of strings are dynamically
  74  * allocated but never freed.  Their memory is written to when
  75  * splitting the strings into string lists which will later be
  76  * processed.  Since it's important that those string lists remain
  77  * valid even after the functions allocating the memory returned,
  78  * those functions cannot free them.  They could be freed only at end
  79  * of main(), which is pretty pointless anyway.
  80  *
  81  * The overall amount of memory to be allocated for processing the
  82  * strings is not expected to exceed a few kilobytes.  For that
  83  * reason, allocation can usually always be assumed to succeed (within
  84  * a virtual memory environment), thus we simply bail out using
  85  * abort(3) in case of an allocation failure.
  86  */
  87
  88 static void
  89 usage(void)
  90 {
  91         (void)fprintf(stderr,
  92              "usage: whereis [-abmqsux] [-BMS dir ... -f] program ...\n");
  93         exit(EX_USAGE);
  94 }
  95
  96 /*
  97  * Scan options passed to program.
  98  *
  99  * Note that the -B/-M/-S options expect a list of directory
 100  * names that must be terminated with -f.
 101  */
 102 static void
 103 scanopts(int argc, char **argv)
 104 {
 105         int c, i;
 106         ccharp **dirlist;
 107
 108         while ((c = getopt(argc, argv, "BMSabfmqsux")) != -1)
 109                 switch (c) {
 110                 case 'B':
 111                         dirlist = &bindirs;
 112                         goto dolist;
 113
 114                 case 'M':
 115                         dirlist = &mandirs;
 116                         goto dolist;
 117
 118                 case 'S':
 119                         dirlist = &sourcedirs;
 120                   dolist:
 121                         i = 0;
 122                         *dirlist = realloc(*dirlist, (i + 1) * sizeof(char *));
 123                         (*dirlist)[i] = NULL;
 124                         while (optind < argc &&
 125                                strcmp(argv[optind], "-f") != 0 &&
 126                                strcmp(argv[optind], "-B") != 0 &&
 127                                strcmp(argv[optind], "-M") != 0 &&
 128                                strcmp(argv[optind], "-S") != 0) {
 129                                 decolonify(argv[optind], dirlist, &i);
 130                                 optind++;
 131                         }
 132                         break;
 133
 134                 case 'a':
 135                         opt_a = 1;
 136                         break;
 137
 138                 case 'b':
 139                         opt_b = 1;
 140                         break;
 141
 142                 case 'f':
 143                         goto breakout;
 144
 145                 case 'm':
 146                         opt_m = 1;
 147                         break;
 148
 149                 case 'q':
 150                         opt_q = 1;
 151                         break;
 152
 153                 case 's':
 154                         opt_s = 1;
 155                         break;
 156
 157                 case 'u':
 158                         opt_u = 1;
 159                         break;
 160
 161                 case 'x':
 162                         opt_x = 1;
 163                         break;
 164
 165                 default:
 166                         usage();
 167                 }
 168   breakout:
 169         if (optind == argc)
 170                 usage();
 171         query = argv + optind;
 172 }
 173
 174 /*
 175  * Find out whether string `s' is contained in list `cpp'.
 176  */
 177 static int
 178 contains(ccharp *cpp, const char *s)
 179 {
 180         ccharp cp;
 181
 182         if (cpp == NULL)
 183                 return (0);
 184
 185         while ((cp = *cpp) != NULL) {
 186                 if (strcmp(cp, s) == 0)
 187                         return (1);
 188                 cpp++;
 189         }
 190         return (0);
 191 }
 192
 193 /*
 194  * Split string `s' at colons, and pass it to the string list pointed
 195  * to by `cppp' (which has `*ip' elements).  Note that the original
 196  * string is modified by replacing the colon with a NUL byte.  The
 197  * partial string is only added if it has a length greater than 0, and
 198  * if it's not already contained in the string list.
 199  */
 200 static void
 201 decolonify(char *s, ccharp **cppp, int *ip)
 202 {
 203         char *cp;
 204
 205         while ((cp = strchr(s, ':')), *s != '\0') {
 206                 if (cp)
 207                         *cp = '\0';
 208                 if (strlen(s) && !contains(*cppp, s)) {
 209                         *cppp = realloc(*cppp, (*ip + 2) * sizeof(char *));
 210                         if (cppp == NULL)
 211                                 abort();
 212                         (*cppp)[*ip] = s;
 213                         (*cppp)[*ip + 1] = NULL;
 214                         (*ip)++;
 215                 }
 216                 if (cp)
 217                         s = cp + 1;
 218                 else
 219                         break;
 220         }
 221 }
 222
 223 /*
 224  * Join string list `cpp' into a colon-separated string.
 225  */
 226 static char *
 227 colonify(ccharp *cpp)
 228 {
 229         size_t s;
 230         char *cp;
 231         int i;
 232
 233         if (cpp == NULL)
 234                 return (0);
 235
 236         for (s = 0, i = 0; cpp[i] != NULL; i++)
 237                 s += strlen(cpp[i]) + 1;
 238         if ((cp = malloc(s + 1)) == NULL)
 239                 abort();
 240         for (i = 0, *cp = '\0'; cpp[i] != NULL; i++) {
 241                 strcat(cp, cpp[i]);
 242                 strcat(cp, ":");
 243         }
 244         cp[s - 1] = '\0';               /* eliminate last colon */
 245
 246         return (cp);
 247 }
 248
 249 /*
 250  * Provide defaults for all options and directory lists.
 251  */
 252 static void
 253 defaults(void)
 254 {
 255         size_t s;
 256         char *b, buf[BUFSIZ], *cp;
 257         int nele;
 258         FILE *p;
 259         DIR *dir;
 260         struct stat sb;
 261         struct dirent *dirp;
 262
 263         /* default to -bms if none has been specified */
 264         if (!opt_b && !opt_m && !opt_s)
 265                 opt_b = opt_m = opt_s = 1;
 266
 267         /* -b defaults to default path + /usr/libexec +
 268          * /usr/games + user's path */
 269         if (!bindirs) {
 270                 if (sysctlbyname("user.cs_path", (void *)NULL, &s,
 271                                  (void *)NULL, 0) == -1)
 272                         err(EX_OSERR, "sysctlbyname(\"user.cs_path\")");
 273                 if ((b = malloc(s + 1)) == NULL)
 274                         abort();
 275                 if (sysctlbyname("user.cs_path", b, &s, (void *)NULL, 0) == -1)
 276                         err(EX_OSERR, "sysctlbyname(\"user.cs_path\")");
 277                 nele = 0;
 278                 decolonify(b, &bindirs, &nele);
 279                 bindirs = realloc(bindirs, (nele + 3) * sizeof(char *));
 280                 if (bindirs == NULL)
 281                         abort();
 282                 bindirs[nele++] = PATH_LIBEXEC;
 283                 bindirs[nele++] = PATH_GAMES;
 284                 bindirs[nele] = NULL;
 285                 if ((cp = getenv("PATH")) != NULL) {
 286                         /* don't destroy the original environment... */
 287                         if ((b = malloc(strlen(cp) + 1)) == NULL)
 288                                 abort();
 289                         strcpy(b, cp);
 290                         decolonify(b, &bindirs, &nele);
 291                 }
 292         }
 293
 294         /* -m defaults to $(manpath) */
 295         if (!mandirs) {
 296                 if ((p = popen(MANPATHCMD, "r")) == NULL)
 297                         err(EX_OSERR, "cannot execute manpath command");
 298                 if (fgets(buf, BUFSIZ - 1, p) == NULL ||
 299                     pclose(p))
 300                         err(EX_OSERR, "error processing manpath results");
 301                 if ((b = strchr(buf, '\n')) != NULL)
 302                         *b = '\0';
 303                 if ((b = malloc(strlen(buf) + 1)) == NULL)
 304                         abort();
 305                 strcpy(b, buf);
 306                 nele = 0;
 307                 decolonify(b, &mandirs, &nele);
 308         }
 309
 310         /* -s defaults to precompiled list, plus subdirs of /usr/ports */
 311         if (!sourcedirs) {
 312                 if ((b = malloc(strlen(sourcepath) + 1)) == NULL)
 313                         abort();
 314                 strcpy(b, sourcepath);
 315                 nele = 0;
 316                 decolonify(b, &sourcedirs, &nele);
 317
 318                 if (stat(PATH_PORTS, &sb) == -1) {
 319                         if (errno == ENOENT)
 320                                 /* no /usr/ports, we are done */
 321                                 return;
 322                         err(EX_OSERR, "stat(" PATH_PORTS ")");
 323                 }
 324                 if ((sb.st_mode & S_IFMT) != S_IFDIR)
 325                         /* /usr/ports is not a directory, ignore */
 326                         return;
 327                 if (access(PATH_PORTS, R_OK | X_OK) != 0)
 328                         return;
 329                 if ((dir = opendir(PATH_PORTS)) == NULL)
 330                         err(EX_OSERR, "opendir" PATH_PORTS ")");
 331                 while ((dirp = readdir(dir)) != NULL) {
 332                         /*
 333                          * Not everything below PATH_PORTS is of
 334                          * interest.  First, all dot files and
 335                          * directories (e. g. .snap) can be ignored.
 336                          * Also, all subdirectories starting with a
 337                          * capital letter are not going to be
 338                          * examined, as they are used for internal
 339                          * purposes (Mk, Tools, ...).  This also
 340                          * matches a possible CVS subdirectory.
 341                          * Finally, the distfiles subdirectory is also
 342                          * special, and should not be considered to
 343                          * avoid false matches.
 344                          */
 345                         if (dirp->d_name[0] == '.' ||
 346                             /*
 347                              * isupper() not used on purpose: the
 348                              * check is supposed to default to the C
 349                              * locale instead of the current user's
 350                              * locale.
 351                              */
 352                             (dirp->d_name[0] >= 'A' && dirp->d_name[0] <= 'Z') ||
 353                             strcmp(dirp->d_name, "distfiles") == 0)
 354                                 continue;
 355                         if ((b = malloc(sizeof PATH_PORTS + 1 + dirp->d_namlen))
 356                             == NULL)
 357                                 abort();
 358                         strcpy(b, PATH_PORTS);
 359                         strcat(b, "/");
 360                         strcat(b, dirp->d_name);
 361                         if (stat(b, &sb) == -1 ||
 362                             (sb.st_mode & S_IFMT) != S_IFDIR ||
 363                             access(b, R_OK | X_OK) != 0) {
 364                                 free(b);
 365                                 continue;
 366                         }
 367                         sourcedirs = realloc(sourcedirs,
 368                                              (nele + 2) * sizeof(char *));
 369                         if (sourcedirs == NULL)
 370                                 abort();
 371                         sourcedirs[nele++] = b;
 372                         sourcedirs[nele] = NULL;
 373                 }
 374                 closedir(dir);
 375         }
 376 }
 377
 378 int
 379 main(int argc, char **argv)
 380 {
 381         int unusual, i, printed;
 382         char *bin, buf[BUFSIZ], *cp, *cp2, *man, *name, *src;
 383         ccharp *dp;
 384         size_t nlen, olen, s;
 385         struct stat sb;
 386         regex_t re, re2;
 387         regmatch_t matches[2];
 388         regoff_t rlen;
 389         FILE *p;
 390
 391         setlocale(LC_ALL, "");
 392
 393         scanopts(argc, argv);
 394         defaults();
 395
 396         if (mandirs == NULL)
 397                 opt_m = 0;
 398         if (bindirs == NULL)
 399                 opt_b = 0;
 400         if (sourcedirs == NULL)
 401                 opt_s = 0;
 402         if (opt_m + opt_b + opt_s == 0)
 403                 errx(EX_DATAERR, "no directories to search");
 404
 405         if (opt_m) {
 406                 setenv("MANPATH", colonify(mandirs), 1);
 407                 if ((i = regcomp(&re, MANWHEREISMATCH, REG_EXTENDED)) != 0) {
 408                         regerror(i, &re, buf, BUFSIZ - 1);
 409                         errx(EX_UNAVAILABLE, "regcomp(%s) failed: %s",
 410                              MANWHEREISMATCH, buf);
 411                 }
 412         }
 413
 414         for (; (name = *query) != NULL; query++) {
 415                 /* strip leading path name component */
 416                 if ((cp = strrchr(name, '/')) != NULL)
 417                         name = cp + 1;
 418                 /* strip SCCS or RCS suffix/prefix */
 419                 if (strlen(name) > 2 && strncmp(name, "s.", 2) == 0)
 420                         name += 2;
 421                 if ((s = strlen(name)) > 2 && strcmp(name + s - 2, ",v") == 0)
 422                         name[s - 2] = '\0';
 423                 /* compression suffix */
 424                 s = strlen(name);
 425                 if (s > 2 &&
 426                     (strcmp(name + s - 2, ".z") == 0 ||
 427                      strcmp(name + s - 2, ".Z") == 0))
 428                         name[s - 2] = '\0';
 429                 else if (s > 3 &&
 430                          strcmp(name + s - 3, ".gz") == 0)
 431                         name[s - 3] = '\0';
 432                 else if (s > 4 &&
 433                          strcmp(name + s - 4, ".bz2") == 0)
 434                         name[s - 4] = '\0';
 435
 436                 unusual = 0;
 437                 bin = man = src = NULL;
 438                 s = strlen(name);
 439
 440                 if (opt_b) {
 441                         /*
 442                          * Binaries have to match exactly, and must be regular
 443                          * executable files.
 444                          */
 445                         unusual = unusual | NO_BIN_FOUND;
 446                         for (dp = bindirs; *dp != NULL; dp++) {
 447                                 cp = malloc(strlen(*dp) + 1 + s + 1);
 448                                 if (cp == NULL)
 449                                         abort();
 450                                 strcpy(cp, *dp);
 451                                 strcat(cp, "/");
 452                                 strcat(cp, name);
 453                                 if (stat(cp, &sb) == 0 &&
 454                                     (sb.st_mode & S_IFMT) == S_IFREG &&
 455                                     (sb.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))
 456                                     != 0) {
 457                                         unusual = unusual & ~NO_BIN_FOUND;
 458                                         if (bin == NULL) {
 459                                                 bin = strdup(cp);
 460                                         } else {
 461                                                 olen = strlen(bin);
 462                                                 nlen = strlen(cp);
 463                                                 bin = realloc(bin,
 464                                                               olen + nlen + 2);
 465                                                 if (bin == 0)
 466                                                         abort();
 467                                                 strcat(bin, " ");
 468                                                 strcat(bin, cp);
 469                                         }
 470                                         if (!opt_a) {
 471                                                 free(cp);
 472                                                 break;
 473                                         }
 474                                 }
 475                                 free(cp);
 476                         }
 477                 }
 478
 479                 if (opt_m) {
 480                         /*
 481                          * Ask the man command to perform the search for us.
 482                          */
 483                         unusual = unusual | NO_MAN_FOUND;
 484                         if (opt_a)
 485                                 cp = malloc(sizeof MANWHEREISALLCMD - 2 + s);
 486                         else
 487                                 cp = malloc(sizeof MANWHEREISCMD - 2 + s);
 488
 489                         if (cp == NULL)
 490                                 abort();
 491
 492                         if (opt_a)
 493                                 sprintf(cp, MANWHEREISALLCMD, name);
 494                         else
 495                                 sprintf(cp, MANWHEREISCMD, name);
 496
 497                         if ((p = popen(cp, "r")) != NULL) {
 498
 499                                 while (fgets(buf, BUFSIZ - 1, p) != NULL) {
 500                                         unusual = unusual & ~NO_MAN_FOUND;
 501
 502                                         if ((cp2 = strchr(buf, '\n')) != NULL)
 503                                                 *cp2 = '\0';
 504                                         if (regexec(&re, buf, 2,
 505                                                     matches, 0) == 0 &&
 506                                             (rlen = matches[1].rm_eo -
 507                                              matches[1].rm_so) > 0) {
 508                                                 /*
 509                                                  * man -w found formated
 510                                                  * page, need to pick up
 511                                                  * source page name.
 512                                                  */
 513                                                 cp2 = malloc(rlen + 1);
 514                                                 if (cp2 == NULL)
 515                                                         abort();
 516                                                 memcpy(cp2,
 517                                                        buf + matches[1].rm_so,
 518                                                        rlen);
 519                                                 cp2[rlen] = '\0';
 520                                         } else {
 521                                                 /*
 522                                                  * man -w found plain source
 523                                                  * page, use it.
 524                                                  */
 525                                                 s = strlen(buf);
 526                                                 cp2 = malloc(s + 1);
 527                                                 if (cp2 == NULL)
 528                                                         abort();
 529                                                 strcpy(cp2, buf);
 530                                         }
 531
 532                                         if (man == NULL) {
 533                                                 man = strdup(cp2);
 534                                         } else {
 535                                                 olen = strlen(man);
 536                                                 nlen = strlen(cp2);
 537                                                 man = realloc(man,
 538                                                               olen + nlen + 2);
 539                                                 if (man == 0)
 540                                                         abort();
 541                                                 strcat(man, " ");
 542                                                 strcat(man, cp2);
 543                                         }
 544
 545                                         free(cp2);
 546
 547                                         if (!opt_a)
 548                                                 break;
 549                                 }
 550                                 pclose(p);
 551                                 free(cp);
 552                         }
 553                 }
 554
 555                 if (opt_s) {
 556                         /*
 557                          * Sources match if a subdir with the exact
 558                          * name is found.
 559                          */
 560                         unusual = unusual | NO_SRC_FOUND;
 561                         for (dp = sourcedirs; *dp != NULL; dp++) {
 562                                 cp = malloc(strlen(*dp) + 1 + s + 1);
 563                                 if (cp == NULL)
 564                                         abort();
 565                                 strcpy(cp, *dp);
 566                                 strcat(cp, "/");
 567                                 strcat(cp, name);
 568                                 if (stat(cp, &sb) == 0 &&
 569                                     (sb.st_mode & S_IFMT) == S_IFDIR) {
 570                                         unusual = unusual & ~NO_SRC_FOUND;
 571                                         if (src == NULL) {
 572                                                 src = strdup(cp);
 573                                         } else {
 574                                                 olen = strlen(src);
 575                                                 nlen = strlen(cp);
 576                                                 src = realloc(src,
 577                                                               olen + nlen + 2);
 578                                                 if (src == 0)
 579                                                         abort();
 580                                                 strcat(src, " ");
 581                                                 strcat(src, cp);
 582                                         }
 583                                         if (!opt_a) {
 584                                                 free(cp);
 585                                                 break;
 586                                         }
 587                                 }
 588                                 free(cp);
 589                         }
 590                         /*
 591                          * If still not found, ask locate to search it
 592                          * for us.  This will find sources for things
 593                          * like lpr that are well hidden in the
 594                          * /usr/src tree, but takes a lot longer.
 595                          * Thus, option -x (`expensive') prevents this
 596                          * search.
 597                          *
 598                          * Do only match locate output that starts
 599                          * with one of our source directories, and at
 600                          * least one further level of subdirectories.
 601                          */
 602                         if (opt_x || (src && !opt_a))
 603                                 goto done_sources;
 604
 605                         cp = malloc(sizeof LOCATECMD - 2 + s);
 606                         if (cp == NULL)
 607                                 abort();
 608                         sprintf(cp, LOCATECMD, name);
 609                         if ((p = popen(cp, "r")) == NULL)
 610                                 goto done_sources;
 611                         while ((src == NULL || opt_a) &&
 612                                (fgets(buf, BUFSIZ - 1, p)) != NULL) {
 613                                 if ((cp2 = strchr(buf, '\n')) != NULL)
 614                                         *cp2 = '\0';
 615                                 for (dp = sourcedirs;
 616                                      (src == NULL || opt_a) && *dp != NULL;
 617                                      dp++) {
 618                                         cp2 = malloc(strlen(*dp) + 9);
 619                                         if (cp2 == NULL)
 620                                                 abort();
 621                                         strcpy(cp2, "^");
 622                                         strcat(cp2, *dp);
 623                                         strcat(cp2, "/[^/]+/");
 624                                         if ((i = regcomp(&re2, cp2,
 625                                                          REG_EXTENDED|REG_NOSUB))
 626                                             != 0) {
 627                                                 regerror(i, &re, buf,
 628                                                          BUFSIZ - 1);
 629                                                 errx(EX_UNAVAILABLE,
 630                                                      "regcomp(%s) failed: %s",
 631                                                      cp2, buf);
 632                                         }
 633                                         free(cp2);
 634                                         if (regexec(&re2, buf, 0,
 635                                                     (regmatch_t *)NULL, 0)
 636                                             == 0) {
 637                                                 unusual = unusual &
 638                                                           ~NO_SRC_FOUND;
 639                                                 if (src == NULL) {
 640                                                         src = strdup(buf);
 641                                                 } else {
 642                                                         olen = strlen(src);
 643                                                         nlen = strlen(buf);
 644                                                         src = realloc(src,
 645                                                                       olen +
 646                                                                       nlen + 2);
 647                                                         if (src == 0)
 648                                                                 abort();
 649                                                         strcat(src, " ");
 650                                                         strcat(src, buf);
 651                                                 }
 652                                         }
 653                                         regfree(&re2);
 654                                 }
 655                         }
 656                         pclose(p);
 657                         free(cp);
 658                 }
 659           done_sources:
 660
 661                 if (opt_u && !unusual)
 662                         continue;
 663
 664                 printed = 0;
 665                 if (!opt_q) {
 666                         printf("%s:", name);
 667                         printed++;
 668                 }
 669                 if (bin) {
 670                         if (printed++)
 671                                 putchar(' ');
 672                         fputs(bin, stdout);
 673                 }
 674                 if (man) {
 675                         if (printed++)
 676                                 putchar(' ');
 677                         fputs(man, stdout);
 678                 }
 679                 if (src) {
 680                         if (printed++)
 681                                 putchar(' ');
 682                         fputs(src, stdout);
 683                 }
 684                 if (printed)
 685                         putchar('\n');
 686         }
 687
 688         if (opt_m)
 689                 regfree(&re);
 690
 691         return (0);
 692 }