1 /* 2 * Copyright (c) 1997-2001, 2003 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include "push_locl.h" 35 RCSID("$Id: push.c,v 1.47 2003/04/04 02:10:17 assar Exp $"); 36 37 #ifdef KRB4 38 static int use_v4 = -1; 39 #endif 40 41 #ifdef KRB5 42 static int use_v5 = -1; 43 static krb5_context context; 44 #endif 45 46 static char *port_str; 47 static int verbose_level; 48 static int do_fork; 49 static int do_leave; 50 static int do_version; 51 static int do_help; 52 static int do_from; 53 static int do_count; 54 static char *header_str; 55 56 struct getargs args[] = { 57 #ifdef KRB4 58 { "krb4", '4', arg_flag, &use_v4, "Use Kerberos V4", 59 NULL }, 60 #endif 61 #ifdef KRB5 62 { "krb5", '5', arg_flag, &use_v5, "Use Kerberos V5", 63 NULL }, 64 #endif 65 { "verbose",'v', arg_counter, &verbose_level, "Verbose", 66 NULL }, 67 { "fork", 'f', arg_flag, &do_fork, "Fork deleting proc", 68 NULL }, 69 { "leave", 'l', arg_flag, &do_leave, "Leave mail on server", 70 NULL }, 71 { "port", 'p', arg_string, &port_str, "Use this port", 72 "number-or-service" }, 73 { "from", 0, arg_flag, &do_from, "Behave like from", 74 NULL }, 75 { "headers", 0, arg_string, &header_str, "Headers to print", NULL }, 76 { "count", 'c', arg_flag, &do_count, "Print number of messages", NULL}, 77 { "version", 0, arg_flag, &do_version, "Print version", 78 NULL }, 79 { "help", 0, arg_flag, &do_help, NULL, 80 NULL } 81 82 }; 83 84 static void 85 usage (int ret) 86 { 87 arg_printusage (args, 88 sizeof(args) / sizeof(args[0]), 89 NULL, 90 "[[{po:username[@hostname] | hostname[:username]}] ...] " 91 "filename"); 92 exit (ret); 93 } 94 95 static int 96 do_connect (const char *hostname, int port, int nodelay) 97 { 98 struct addrinfo *ai, *a; 99 struct addrinfo hints; 100 int error; 101 int s = -1; 102 char portstr[NI_MAXSERV]; 103 104 memset (&hints, 0, sizeof(hints)); 105 hints.ai_socktype = SOCK_STREAM; 106 hints.ai_protocol = IPPROTO_TCP; 107 108 snprintf (portstr, sizeof(portstr), "%u", ntohs(port)); 109 110 error = getaddrinfo (hostname, portstr, &hints, &ai); 111 if (error) 112 errx (1, "getaddrinfo(%s): %s", hostname, gai_strerror(error)); 113 114 for (a = ai; a != NULL; a = a->ai_next) { 115 s = socket (a->ai_family, a->ai_socktype, a->ai_protocol); 116 if (s < 0) 117 continue; 118 if (connect (s, a->ai_addr, a->ai_addrlen) < 0) { 119 warn ("connect(%s)", hostname); 120 close (s); 121 continue; 122 } 123 break; 124 } 125 freeaddrinfo (ai); 126 if (a == NULL) { 127 warnx ("failed to contact %s", hostname); 128 return -1; 129 } 130 131 if(setsockopt(s, IPPROTO_TCP, TCP_NODELAY, 132 (void *)&nodelay, sizeof(nodelay)) < 0) 133 err (1, "setsockopt TCP_NODELAY"); 134 return s; 135 } 136 137 typedef enum { INIT = 0, GREET, USER, PASS, STAT, RETR, TOP, 138 DELE, XDELE, QUIT} pop_state; 139 140 static char *pop_state_string[] = { 141 "INIT", "GREET", "USER", "PASS", "STAT", "RETR", "TOP", 142 "DELE", "XDELE", "QUIT" 143 }; 144 145 #define PUSH_BUFSIZ 65536 146 147 #define STEP 16 148 149 struct write_state { 150 struct iovec *iovecs; 151 size_t niovecs, maxiovecs, allociovecs; 152 int fd; 153 }; 154 155 static void 156 write_state_init (struct write_state *w, int fd) 157 { 158 #ifdef UIO_MAXIOV 159 w->maxiovecs = UIO_MAXIOV; 160 #else 161 w->maxiovecs = 16; 162 #endif 163 w->allociovecs = min(STEP, w->maxiovecs); 164 w->niovecs = 0; 165 w->iovecs = emalloc(w->allociovecs * sizeof(*w->iovecs)); 166 w->fd = fd; 167 } 168 169 static void 170 write_state_add (struct write_state *w, void *v, size_t len) 171 { 172 if(w->niovecs == w->allociovecs) { 173 if(w->niovecs == w->maxiovecs) { 174 if(writev (w->fd, w->iovecs, w->niovecs) < 0) 175 err(1, "writev"); 176 w->niovecs = 0; 177 } else { 178 w->allociovecs = min(w->allociovecs + STEP, w->maxiovecs); 179 w->iovecs = erealloc (w->iovecs, 180 w->allociovecs * sizeof(*w->iovecs)); 181 } 182 } 183 w->iovecs[w->niovecs].iov_base = v; 184 w->iovecs[w->niovecs].iov_len = len; 185 ++w->niovecs; 186 } 187 188 static void 189 write_state_flush (struct write_state *w) 190 { 191 if (w->niovecs) { 192 if (writev (w->fd, w->iovecs, w->niovecs) < 0) 193 err (1, "writev"); 194 w->niovecs = 0; 195 } 196 } 197 198 static void 199 write_state_destroy (struct write_state *w) 200 { 201 free (w->iovecs); 202 } 203 204 static int 205 doit(int s, 206 const char *host, 207 const char *user, 208 const char *outfilename, 209 const char *header_str, 210 int leavep, 211 int verbose, 212 int forkp) 213 { 214 int ret; 215 char out_buf[PUSH_BUFSIZ]; 216 int out_len = 0; 217 char in_buf[PUSH_BUFSIZ + 1]; /* sentinel */ 218 size_t in_len = 0; 219 char *in_ptr = in_buf; 220 pop_state state = INIT; 221 unsigned count, bytes; 222 unsigned asked_for = 0, retrieved = 0, asked_deleted = 0, deleted = 0; 223 unsigned sent_xdele = 0; 224 int out_fd; 225 char from_line[128]; 226 size_t from_line_length; 227 time_t now; 228 struct write_state write_state; 229 int numheaders = 1; 230 char **headers = NULL; 231 int i; 232 char *tmp = NULL; 233 234 if (do_from) { 235 char *tmp2; 236 237 tmp2 = tmp = estrdup(header_str); 238 239 out_fd = -1; 240 if (verbose) 241 fprintf (stderr, "%s@%s\n", user, host); 242 while (*tmp != '\0') { 243 tmp = strchr(tmp, ','); 244 if (tmp == NULL) 245 break; 246 tmp++; 247 numheaders++; 248 } 249 250 headers = emalloc(sizeof(char *) * (numheaders + 1)); 251 for (i = 0; i < numheaders; i++) { 252 headers[i] = strtok_r(tmp2, ",", &tmp2); 253 } 254 headers[numheaders] = NULL; 255 } else { 256 out_fd = open(outfilename, O_WRONLY | O_APPEND | O_CREAT, 0666); 257 if (out_fd < 0) 258 err (1, "open %s", outfilename); 259 if (verbose) 260 fprintf (stderr, "%s@%s -> %s\n", user, host, outfilename); 261 } 262 263 now = time(NULL); 264 from_line_length = snprintf (from_line, sizeof(from_line), 265 "From %s %s", "push", ctime(&now)); 266 267 out_len = snprintf (out_buf, sizeof(out_buf), 268 "USER %s\r\nPASS hej\r\nSTAT\r\n", 269 user); 270 if (out_len < 0) 271 errx (1, "snprintf failed"); 272 if (net_write (s, out_buf, out_len) != out_len) 273 err (1, "write"); 274 if (verbose > 1) 275 fprintf (stderr, "%s", out_buf); 276 277 if (!do_from) 278 write_state_init (&write_state, out_fd); 279 280 while(state != QUIT) { 281 fd_set readset, writeset; 282 283 FD_ZERO(&readset); 284 FD_ZERO(&writeset); 285 if (s >= FD_SETSIZE) 286 errx (1, "fd too large"); 287 FD_SET(s,&readset); 288 289 if (verbose > 1) 290 fprintf (stderr, "state: %s count: %d asked_for: %d " 291 "retrieved: %d asked_deleted: %d\n", 292 pop_state_string[state], 293 count, asked_for, retrieved, asked_deleted); 294 295 if (((state == STAT || state == RETR || state == TOP) 296 && asked_for < count) 297 || (state == XDELE && !sent_xdele) 298 || (state == DELE && asked_deleted < count)) 299 FD_SET(s,&writeset); 300 ret = select (s + 1, &readset, &writeset, NULL, NULL); 301 if (ret < 0) { 302 if (errno == EAGAIN) 303 continue; 304 else 305 err (1, "select"); 306 } 307 308 if (FD_ISSET(s, &readset)) { 309 char *beg, *p; 310 size_t rem; 311 int blank_line = 0; 312 313 ret = read (s, in_ptr, sizeof(in_buf) - in_len - 1); 314 if (ret < 0) 315 err (1, "read"); 316 else if (ret == 0) 317 errx (1, "EOF during read"); 318 319 in_len += ret; 320 in_ptr += ret; 321 *in_ptr = '\0'; 322 323 beg = in_buf; 324 rem = in_len; 325 while(rem > 1 326 && (p = strstr(beg, "\r\n")) != NULL) { 327 if (state == TOP) { 328 char *copy = beg; 329 330 for (i = 0; i < numheaders; i++) { 331 size_t len; 332 333 len = min(p - copy + 1, strlen(headers[i])); 334 if (strncasecmp(copy, headers[i], len) == 0) { 335 fprintf (stdout, "%.*s\n", (int)(p - copy), copy); 336 } 337 } 338 if (beg[0] == '.' && beg[1] == '\r' && beg[2] == '\n') { 339 if (numheaders > 1) 340 fprintf (stdout, "\n"); 341 state = STAT; 342 if (++retrieved == count) { 343 state = QUIT; 344 net_write (s, "QUIT\r\n", 6); 345 if (verbose > 1) 346 fprintf (stderr, "QUIT\r\n"); 347 } 348 } 349 rem -= p - beg + 2; 350 beg = p + 2; 351 } else if (state == RETR) { 352 char *copy = beg; 353 if (beg[0] == '.') { 354 if (beg[1] == '\r' && beg[2] == '\n') { 355 if(!blank_line) 356 write_state_add(&write_state, "\n", 1); 357 state = STAT; 358 rem -= p - beg + 2; 359 beg = p + 2; 360 if (++retrieved == count) { 361 write_state_flush (&write_state); 362 if (fsync (out_fd) < 0) 363 err (1, "fsync"); 364 close(out_fd); 365 if (leavep) { 366 state = QUIT; 367 net_write (s, "QUIT\r\n", 6); 368 if (verbose > 1) 369 fprintf (stderr, "QUIT\r\n"); 370 } else { 371 if (forkp) { 372 pid_t pid; 373 374 pid = fork(); 375 if (pid < 0) 376 warn ("fork"); 377 else if(pid != 0) { 378 if(verbose) 379 fprintf (stderr, 380 "(exiting)"); 381 return 0; 382 } 383 } 384 385 state = XDELE; 386 if (verbose) 387 fprintf (stderr, "deleting... "); 388 } 389 } 390 continue; 391 } else 392 ++copy; 393 } 394 *p = '\n'; 395 if(blank_line && 396 strncmp(copy, "From ", min(p - copy + 1, 5)) == 0) 397 write_state_add(&write_state, ">", 1); 398 write_state_add(&write_state, copy, p - copy + 1); 399 blank_line = (*copy == '\n'); 400 rem -= p - beg + 2; 401 beg = p + 2; 402 } else if (rem >= 3 && strncmp (beg, "+OK", 3) == 0) { 403 if (state == STAT) { 404 if (!do_from) 405 write_state_add(&write_state, 406 from_line, from_line_length); 407 blank_line = 0; 408 if (do_from) 409 state = TOP; 410 else 411 state = RETR; 412 } else if (state == XDELE) { 413 state = QUIT; 414 net_write (s, "QUIT\r\n", 6); 415 if (verbose > 1) 416 fprintf (stderr, "QUIT\r\n"); 417 break; 418 } else if (state == DELE) { 419 if (++deleted == count) { 420 state = QUIT; 421 net_write (s, "QUIT\r\n", 6); 422 if (verbose > 1) 423 fprintf (stderr, "QUIT\r\n"); 424 break; 425 } 426 } else if (++state == STAT) { 427 if(sscanf (beg + 4, "%u %u", &count, &bytes) != 2) 428 errx(1, "Bad STAT-line: %.*s", (int)(p - beg), beg); 429 if (verbose) { 430 fprintf (stderr, "%u message(s) (%u bytes). " 431 "fetching... ", 432 count, bytes); 433 if (do_from) 434 fprintf (stderr, "\n"); 435 } else if (do_count) { 436 fprintf (stderr, "%u message(s) (%u bytes).\n", 437 count, bytes); 438 } 439 if (count == 0) { 440 state = QUIT; 441 net_write (s, "QUIT\r\n", 6); 442 if (verbose > 1) 443 fprintf (stderr, "QUIT\r\n"); 444 break; 445 } 446 } 447 448 rem -= p - beg + 2; 449 beg = p + 2; 450 } else { 451 if(state == XDELE) { 452 state = DELE; 453 rem -= p - beg + 2; 454 beg = p + 2; 455 } else 456 errx (1, "Bad response: %.*s", (int)(p - beg), beg); 457 } 458 } 459 if (!do_from) 460 write_state_flush (&write_state); 461 462 memmove (in_buf, beg, rem); 463 in_len = rem; 464 in_ptr = in_buf + rem; 465 } 466 if (FD_ISSET(s, &writeset)) { 467 if ((state == STAT && !do_from) || state == RETR) 468 out_len = snprintf (out_buf, sizeof(out_buf), 469 "RETR %u\r\n", ++asked_for); 470 else if ((state == STAT && do_from) || state == TOP) 471 out_len = snprintf (out_buf, sizeof(out_buf), 472 "TOP %u 0\r\n", ++asked_for); 473 else if(state == XDELE) { 474 out_len = snprintf(out_buf, sizeof(out_buf), 475 "XDELE %u %u\r\n", 1, count); 476 sent_xdele++; 477 } 478 else if(state == DELE) 479 out_len = snprintf (out_buf, sizeof(out_buf), 480 "DELE %u\r\n", ++asked_deleted); 481 if (out_len < 0) 482 errx (1, "snprintf failed"); 483 if (net_write (s, out_buf, out_len) != out_len) 484 err (1, "write"); 485 if (verbose > 1) 486 fprintf (stderr, "%s", out_buf); 487 } 488 } 489 if (verbose) 490 fprintf (stderr, "Done\n"); 491 if (do_from) { 492 free (tmp); 493 free (headers); 494 } else { 495 write_state_destroy (&write_state); 496 } 497 return 0; 498 } 499 500 #ifdef KRB5 501 static int 502 do_v5 (const char *host, 503 int port, 504 const char *user, 505 const char *filename, 506 const char *header_str, 507 int leavep, 508 int verbose, 509 int forkp) 510 { 511 krb5_error_code ret; 512 krb5_auth_context auth_context = NULL; 513 krb5_principal server; 514 int s; 515 516 s = do_connect (host, port, 1); 517 if (s < 0) 518 return 1; 519 520 ret = krb5_sname_to_principal (context, 521 host, 522 "pop", 523 KRB5_NT_SRV_HST, 524 &server); 525 if (ret) { 526 warnx ("krb5_sname_to_principal: %s", 527 krb5_get_err_text (context, ret)); 528 return 1; 529 } 530 531 ret = krb5_sendauth (context, 532 &auth_context, 533 &s, 534 "KPOPV1.0", 535 NULL, 536 server, 537 0, 538 NULL, 539 NULL, 540 NULL, 541 NULL, 542 NULL, 543 NULL); 544 krb5_free_principal (context, server); 545 if (ret) { 546 warnx ("krb5_sendauth: %s", 547 krb5_get_err_text (context, ret)); 548 return 1; 549 } 550 return doit (s, host, user, filename, header_str, leavep, verbose, forkp); 551 } 552 #endif 553 554 #ifdef KRB4 555 static int 556 do_v4 (const char *host, 557 int port, 558 const char *user, 559 const char *filename, 560 const char *header_str, 561 int leavep, 562 int verbose, 563 int forkp) 564 { 565 KTEXT_ST ticket; 566 MSG_DAT msg_data; 567 CREDENTIALS cred; 568 des_key_schedule sched; 569 int s; 570 int ret; 571 572 s = do_connect (host, port, 1); 573 if (s < 0) 574 return 1; 575 ret = krb_sendauth(0, 576 s, 577 &ticket, 578 "pop", 579 (char *)host, 580 krb_realmofhost(host), 581 getpid(), 582 &msg_data, 583 &cred, 584 sched, 585 NULL, 586 NULL, 587 "KPOPV0.1"); 588 if(ret) { 589 warnx("krb_sendauth: %s", krb_get_err_text(ret)); 590 return 1; 591 } 592 return doit (s, host, user, filename, header_str, leavep, verbose, forkp); 593 } 594 #endif /* KRB4 */ 595 596 #ifdef HESIOD 597 598 #ifdef HESIOD_INTERFACES 599 600 static char * 601 hesiod_get_pobox (const char **user) 602 { 603 void *context; 604 struct hesiod_postoffice *hpo; 605 char *ret = NULL; 606 607 if(hesiod_init (&context) != 0) 608 err (1, "hesiod_init"); 609 610 hpo = hesiod_getmailhost (context, *user); 611 if (hpo == NULL) { 612 warn ("hesiod_getmailhost %s", *user); 613 } else { 614 if (strcasecmp(hpo->hesiod_po_type, "pop") != 0) 615 errx (1, "Unsupported po type %s", hpo->hesiod_po_type); 616 617 ret = estrdup(hpo->hesiod_po_host); 618 *user = estrdup(hpo->hesiod_po_name); 619 hesiod_free_postoffice (context, hpo); 620 } 621 hesiod_end (context); 622 return ret; 623 } 624 625 #else /* !HESIOD_INTERFACES */ 626 627 static char * 628 hesiod_get_pobox (const char **user) 629 { 630 char *ret = NULL; 631 struct hes_postoffice *hpo; 632 633 hpo = hes_getmailhost (*user); 634 if (hpo == NULL) { 635 warn ("hes_getmailhost %s", *user); 636 } else { 637 if (strcasecmp(hpo->po_type, "pop") != 0) 638 errx (1, "Unsupported po type %s", hpo->po_type); 639 640 ret = estrdup(hpo->po_host); 641 *user = estrdup(hpo->po_name); 642 } 643 return ret; 644 } 645 646 #endif /* HESIOD_INTERFACES */ 647 648 #endif /* HESIOD */ 649 650 static char * 651 get_pobox (const char **user) 652 { 653 char *ret = NULL; 654 655 #ifdef HESIOD 656 ret = hesiod_get_pobox (user); 657 #endif 658 659 if (ret == NULL) 660 ret = getenv("MAILHOST"); 661 if (ret == NULL) 662 errx (1, "MAILHOST not set"); 663 return ret; 664 } 665 666 static void 667 parse_pobox (char *a0, const char **host, const char **user) 668 { 669 const char *h, *u; 670 char *p; 671 int po = 0; 672 673 if (a0 == NULL) { 674 675 *user = getenv ("USERNAME"); 676 if (*user == NULL) { 677 struct passwd *pwd = getpwuid (getuid ()); 678 679 if (pwd == NULL) 680 errx (1, "Who are you?"); 681 *user = estrdup (pwd->pw_name); 682 } 683 *host = get_pobox (user); 684 return; 685 } 686 687 /* if the specification starts with po:, remember this information */ 688 if(strncmp(a0, "po:", 3) == 0) { 689 a0 += 3; 690 po++; 691 } 692 /* if there is an `@', the hostname is after it, otherwise at the 693 beginning of the string */ 694 p = strchr(a0, '@'); 695 if(p != NULL) { 696 *p++ = '\0'; 697 h = p; 698 } else { 699 h = a0; 700 } 701 /* if there is a `:', the username comes before it, otherwise at 702 the beginning of the string */ 703 p = strchr(a0, ':'); 704 if(p != NULL) { 705 *p++ = '\0'; 706 u = p; 707 } else { 708 u = a0; 709 } 710 if(h == u) { 711 /* some inconsistent compatibility with various mailers */ 712 if(po) { 713 h = get_pobox (&u); 714 } else { 715 u = get_default_username (); 716 if (u == NULL) 717 errx (1, "Who are you?"); 718 } 719 } 720 *host = h; 721 *user = u; 722 } 723 724 int 725 main(int argc, char **argv) 726 { 727 int port = 0; 728 int optind = 0; 729 int ret = 1; 730 const char *host, *user, *filename = NULL; 731 char *pobox = NULL; 732 733 setprogname (argv[0]); 734 735 #ifdef KRB5 736 { 737 krb5_error_code ret; 738 739 ret = krb5_init_context (&context); 740 if (ret) 741 errx (1, "krb5_init_context failed: %d", ret); 742 } 743 #endif 744 745 if (getarg (args, sizeof(args) / sizeof(args[0]), argc, argv, 746 &optind)) 747 usage (1); 748 749 argc -= optind; 750 argv += optind; 751 752 #if defined(KRB4) && defined(KRB5) 753 if(use_v4 == -1 && use_v5 == 1) 754 use_v4 = 0; 755 if(use_v5 == -1 && use_v4 == 1) 756 use_v5 = 0; 757 #endif 758 759 if (do_help) 760 usage (0); 761 762 if (do_version) { 763 print_version(NULL); 764 return 0; 765 } 766 767 if (do_from && header_str == NULL) 768 header_str = "From:"; 769 else if (header_str != NULL) 770 do_from = 1; 771 772 if (do_from) { 773 if (argc == 0) 774 pobox = NULL; 775 else if (argc == 1) 776 pobox = argv[0]; 777 else 778 usage (1); 779 } else { 780 if (argc == 1) { 781 filename = argv[0]; 782 pobox = NULL; 783 } else if (argc == 2) { 784 filename = argv[1]; 785 pobox = argv[0]; 786 } else 787 usage (1); 788 } 789 790 if (port_str) { 791 struct servent *s = roken_getservbyname (port_str, "tcp"); 792 793 if (s) 794 port = s->s_port; 795 else { 796 char *ptr; 797 798 port = strtol (port_str, &ptr, 10); 799 if (port == 0 && ptr == port_str) 800 errx (1, "Bad port `%s'", port_str); 801 port = htons(port); 802 } 803 } 804 if (port == 0) { 805 #ifdef KRB5 806 port = krb5_getportbyname (context, "kpop", "tcp", 1109); 807 #elif defined(KRB4) 808 port = k_getportbyname ("kpop", "tcp", htons(1109)); 809 #else 810 #error must define KRB4 or KRB5 811 #endif 812 } 813 814 parse_pobox (pobox, &host, &user); 815 816 #ifdef KRB5 817 if (ret && use_v5) { 818 ret = do_v5 (host, port, user, filename, header_str, 819 do_leave, verbose_level, do_fork); 820 } 821 #endif 822 823 #ifdef KRB4 824 if (ret && use_v4) { 825 ret = do_v4 (host, port, user, filename, header_str, 826 do_leave, verbose_level, do_fork); 827 } 828 #endif /* KRB4 */ 829 return ret; 830 } 831