1 /* $NetBSD: ftp.c,v 1.135 2005/06/29 02:31:19 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1996-2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Luke Mewburn. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1985, 1989, 1993, 1994 41 * The Regents of the University of California. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 */ 67 68 /* 69 * Copyright (C) 1997 and 1998 WIDE Project. 70 * All rights reserved. 71 * 72 * Redistribution and use in source and binary forms, with or without 73 * modification, are permitted provided that the following conditions 74 * are met: 75 * 1. Redistributions of source code must retain the above copyright 76 * notice, this list of conditions and the following disclaimer. 77 * 2. Redistributions in binary form must reproduce the above copyright 78 * notice, this list of conditions and the following disclaimer in the 79 * documentation and/or other materials provided with the distribution. 80 * 3. Neither the name of the project nor the names of its contributors 81 * may be used to endorse or promote products derived from this software 82 * without specific prior written permission. 83 * 84 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 85 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 86 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 87 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 88 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 89 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 90 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 91 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 92 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 93 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 94 * SUCH DAMAGE. 95 */ 96 97 #include <sys/cdefs.h> 98 #ifndef lint 99 #if 0 100 static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94"; 101 #else 102 __RCSID("$NetBSD: ftp.c,v 1.135 2005/06/29 02:31:19 christos Exp $"); 103 #endif 104 #endif /* not lint */ 105 106 #include <sys/types.h> 107 #include <sys/stat.h> 108 #include <sys/socket.h> 109 #include <sys/time.h> 110 111 #include <netinet/in.h> 112 #include <netinet/in_systm.h> 113 #include <netinet/ip.h> 114 #include <arpa/inet.h> 115 #include <arpa/ftp.h> 116 #include <arpa/telnet.h> 117 118 #include <ctype.h> 119 #include <err.h> 120 #include <errno.h> 121 #include <fcntl.h> 122 #include <netdb.h> 123 #include <stdio.h> 124 #include <stdlib.h> 125 #include <string.h> 126 #include <time.h> 127 #include <unistd.h> 128 #include <stdarg.h> 129 130 #include "ftp_var.h" 131 132 volatile sig_atomic_t abrtflag; 133 volatile sig_atomic_t timeoutflag; 134 135 sigjmp_buf ptabort; 136 int ptabflg; 137 int ptflag = 0; 138 char pasv[BUFSIZ]; /* passive port for proxy data connection */ 139 140 static int empty(FILE *, FILE *, int); 141 142 struct sockinet { 143 union sockunion { 144 struct sockaddr_in su_sin; 145 #ifdef INET6 146 struct sockaddr_in6 su_sin6; 147 #endif 148 } si_su; 149 #if !HAVE_SOCKADDR_SA_LEN 150 int si_len; 151 #endif 152 }; 153 154 #if !HAVE_SOCKADDR_SA_LEN 155 # define su_len si_len 156 #else 157 # define su_len si_su.su_sin.sin_len 158 #endif 159 #define su_family si_su.su_sin.sin_family 160 #define su_port si_su.su_sin.sin_port 161 162 struct sockinet myctladdr, hisctladdr, data_addr; 163 164 char * 165 hookup(char *host, char *port) 166 { 167 int s = -1, error, portnum; 168 struct addrinfo hints, *res, *res0; 169 char hbuf[MAXHOSTNAMELEN]; 170 static char hostnamebuf[MAXHOSTNAMELEN]; 171 char *cause = "unknown"; 172 socklen_t len; 173 int on = 1; 174 175 memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); 176 memset((char *)&myctladdr, 0, sizeof (myctladdr)); 177 memset(&hints, 0, sizeof(hints)); 178 portnum = parseport(port, FTP_PORT); 179 hints.ai_flags = AI_CANONNAME; 180 hints.ai_family = family; 181 hints.ai_socktype = SOCK_STREAM; 182 hints.ai_protocol = 0; 183 error = getaddrinfo(host, NULL, &hints, &res0); 184 if (error) { 185 warnx("%s: %s", host, gai_strerror(error)); 186 code = -1; 187 return (0); 188 } 189 190 if (res0->ai_canonname) 191 (void)strlcpy(hostnamebuf, res0->ai_canonname, 192 sizeof(hostnamebuf)); 193 else 194 (void)strlcpy(hostnamebuf, host, sizeof(hostnamebuf)); 195 hostname = hostnamebuf; 196 197 for (res = res0; res; res = res->ai_next) { 198 /* 199 * make sure that ai_addr is NOT an IPv4 mapped address. 200 * IPv4 mapped address complicates too many things in FTP 201 * protocol handling, as FTP protocol is defined differently 202 * between IPv4 and IPv6. 203 * 204 * This may not be the best way to handle this situation, 205 * since the semantics of IPv4 mapped address is defined in 206 * the kernel. There are configurations where we should use 207 * IPv4 mapped address as native IPv6 address, not as 208 * "an IPv6 address that embeds IPv4 address" (namely, SIIT). 209 * 210 * More complete solution would be to have an additional 211 * getsockopt to grab "real" peername/sockname. "real" 212 * peername/sockname will be AF_INET if IPv4 mapped address 213 * is used to embed IPv4 address, and will be AF_INET6 if 214 * we use it as native. What a mess! 215 */ 216 ai_unmapped(res); 217 if (verbose && res0->ai_next) { 218 /* if we have multiple possibilities */ 219 if (getnameinfo(res->ai_addr, res->ai_addrlen, 220 hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST)) 221 strlcpy(hbuf, "?", sizeof(hbuf)); 222 fprintf(ttyout, "Trying %s...\n", hbuf); 223 } 224 ((struct sockaddr_in *)res->ai_addr)->sin_port = htons(portnum); 225 s = socket(res->ai_family, SOCK_STREAM, res->ai_protocol); 226 if (s < 0) { 227 cause = "socket"; 228 continue; 229 } 230 error = xconnect(s, res->ai_addr, res->ai_addrlen); 231 if (error) { 232 /* this "if" clause is to prevent print warning twice */ 233 if (res->ai_next) { 234 if (getnameinfo(res->ai_addr, res->ai_addrlen, 235 hbuf, sizeof(hbuf), NULL, 0, 236 NI_NUMERICHOST)) 237 strlcpy(hbuf, "?", sizeof(hbuf)); 238 warn("connect to address %s", hbuf); 239 } 240 cause = "connect"; 241 close(s); 242 s = -1; 243 continue; 244 } 245 246 /* finally we got one */ 247 break; 248 } 249 if (s < 0) { 250 warn("%s", cause); 251 code = -1; 252 freeaddrinfo(res0); 253 return 0; 254 } 255 memcpy(&hisctladdr.si_su, res->ai_addr, res->ai_addrlen); 256 hisctladdr.su_len = res->ai_addrlen; 257 freeaddrinfo(res0); 258 res0 = res = NULL; 259 260 len = hisctladdr.su_len; 261 if (getsockname(s, (struct sockaddr *)&myctladdr.si_su, &len) == -1) { 262 warn("getsockname"); 263 code = -1; 264 goto bad; 265 } 266 myctladdr.su_len = len; 267 268 #ifdef IPTOS_LOWDELAY 269 if (hisctladdr.su_family == AF_INET) { 270 int tos = IPTOS_LOWDELAY; 271 if (setsockopt(s, IPPROTO_IP, IP_TOS, 272 (void *)&tos, sizeof(tos)) == -1) { 273 DWARN("setsockopt %s (ignored)", 274 "IPTOS_LOWDELAY"); 275 } 276 } 277 #endif 278 cin = fdopen(s, "r"); 279 cout = fdopen(s, "w"); 280 if (cin == NULL || cout == NULL) { 281 warnx("fdopen failed."); 282 if (cin) 283 (void)fclose(cin); 284 if (cout) 285 (void)fclose(cout); 286 code = -1; 287 goto bad; 288 } 289 if (verbose) 290 fprintf(ttyout, "Connected to %s.\n", hostname); 291 if (getreply(0) > 2) { /* read startup message from server */ 292 if (cin) 293 (void)fclose(cin); 294 if (cout) 295 (void)fclose(cout); 296 code = -1; 297 goto bad; 298 } 299 300 if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, 301 (void *)&on, sizeof(on)) == -1) { 302 DWARN("setsockopt %s (ignored)", "SO_OOBINLINE"); 303 } 304 305 return (hostname); 306 bad: 307 (void)close(s); 308 return (NULL); 309 } 310 311 void 312 cmdabort(int notused) 313 { 314 int oerrno = errno; 315 316 sigint_raised = 1; 317 alarmtimer(0); 318 if (fromatty) 319 write(fileno(ttyout), "\n", 1); 320 abrtflag++; 321 if (ptflag) 322 siglongjmp(ptabort, 1); 323 errno = oerrno; 324 } 325 326 void 327 cmdtimeout(int notused) 328 { 329 int oerrno = errno; 330 331 alarmtimer(0); 332 if (fromatty) 333 write(fileno(ttyout), "\n", 1); 334 timeoutflag++; 335 if (ptflag) 336 siglongjmp(ptabort, 1); 337 errno = oerrno; 338 } 339 340 /*VARARGS*/ 341 int 342 command(const char *fmt, ...) 343 { 344 va_list ap; 345 int r; 346 sigfunc oldsigint; 347 348 #ifndef NO_DEBUG 349 if (debug) { 350 fputs("---> ", ttyout); 351 va_start(ap, fmt); 352 if (strncmp("PASS ", fmt, 5) == 0) 353 fputs("PASS XXXX", ttyout); 354 else if (strncmp("ACCT ", fmt, 5) == 0) 355 fputs("ACCT XXXX", ttyout); 356 else 357 vfprintf(ttyout, fmt, ap); 358 va_end(ap); 359 putc('\n', ttyout); 360 } 361 #endif 362 if (cout == NULL) { 363 warnx("No control connection for command."); 364 code = -1; 365 return (0); 366 } 367 368 abrtflag = 0; 369 370 oldsigint = xsignal(SIGINT, cmdabort); 371 372 va_start(ap, fmt); 373 vfprintf(cout, fmt, ap); 374 va_end(ap); 375 fputs("\r\n", cout); 376 (void)fflush(cout); 377 cpend = 1; 378 r = getreply(!strcmp(fmt, "QUIT")); 379 if (abrtflag && oldsigint != SIG_IGN) 380 (*oldsigint)(SIGINT); 381 (void)xsignal(SIGINT, oldsigint); 382 return (r); 383 } 384 385 int 386 getreply(int expecteof) 387 { 388 char current_line[BUFSIZ]; /* last line of previous reply */ 389 int c, n, line; 390 int dig; 391 int originalcode = 0, continuation = 0; 392 sigfunc oldsigint, oldsigalrm; 393 int pflag = 0; 394 char *cp, *pt = pasv; 395 396 abrtflag = 0; 397 timeoutflag = 0; 398 399 oldsigint = xsignal(SIGINT, cmdabort); 400 oldsigalrm = xsignal(SIGALRM, cmdtimeout); 401 402 for (line = 0 ;; line++) { 403 dig = n = code = 0; 404 cp = current_line; 405 while (alarmtimer(60),((c = getc(cin)) != '\n')) { 406 if (c == IAC) { /* handle telnet commands */ 407 switch (c = getc(cin)) { 408 case WILL: 409 case WONT: 410 c = getc(cin); 411 fprintf(cout, "%c%c%c", IAC, DONT, c); 412 (void)fflush(cout); 413 break; 414 case DO: 415 case DONT: 416 c = getc(cin); 417 fprintf(cout, "%c%c%c", IAC, WONT, c); 418 (void)fflush(cout); 419 break; 420 default: 421 break; 422 } 423 continue; 424 } 425 dig++; 426 if (c == EOF) { 427 /* 428 * these will get trashed by pswitch() 429 * in lostpeer() 430 */ 431 int reply_timeoutflag = timeoutflag; 432 int reply_abrtflag = abrtflag; 433 434 alarmtimer(0); 435 if (expecteof && feof(cin)) { 436 (void)xsignal(SIGINT, oldsigint); 437 (void)xsignal(SIGALRM, oldsigalrm); 438 code = 221; 439 return (0); 440 } 441 cpend = 0; 442 lostpeer(0); 443 if (verbose) { 444 if (reply_timeoutflag) 445 fputs( 446 "421 Service not available, remote server timed out. Connection closed\n", 447 ttyout); 448 else if (reply_abrtflag) 449 fputs( 450 "421 Service not available, user interrupt. Connection closed.\n", 451 ttyout); 452 else 453 fputs( 454 "421 Service not available, remote server has closed connection.\n", 455 ttyout); 456 (void)fflush(ttyout); 457 } 458 code = 421; 459 (void)xsignal(SIGINT, oldsigint); 460 (void)xsignal(SIGALRM, oldsigalrm); 461 return (4); 462 } 463 if (c != '\r' && (verbose > 0 || 464 ((verbose > -1 && n == '5' && dig > 4) && 465 (((!n && c < '5') || (n && n < '5')) 466 || !retry_connect)))) { 467 if (proxflag && 468 (dig == 1 || (dig == 5 && verbose == 0))) 469 fprintf(ttyout, "%s:", hostname); 470 (void)putc(c, ttyout); 471 } 472 if (dig < 4 && isdigit(c)) 473 code = code * 10 + (c - '0'); 474 if (!pflag && (code == 227 || code == 228)) 475 pflag = 1; 476 else if (!pflag && code == 229) 477 pflag = 100; 478 if (dig > 4 && pflag == 1 && isdigit(c)) 479 pflag = 2; 480 if (pflag == 2) { 481 if (c != '\r' && c != ')') { 482 if (pt < &pasv[sizeof(pasv) - 1]) 483 *pt++ = c; 484 } else { 485 *pt = '\0'; 486 pflag = 3; 487 } 488 } 489 if (pflag == 100 && c == '(') 490 pflag = 2; 491 if (dig == 4 && c == '-') { 492 if (continuation) 493 code = 0; 494 continuation++; 495 } 496 if (n == 0) 497 n = c; 498 if (cp < ¤t_line[sizeof(current_line) - 1]) 499 *cp++ = c; 500 } 501 if (verbose > 0 || ((verbose > -1 && n == '5') && 502 (n < '5' || !retry_connect))) { 503 (void)putc(c, ttyout); 504 (void)fflush (ttyout); 505 } 506 if (cp[-1] == '\r') 507 cp[-1] = '\0'; 508 *cp = '\0'; 509 if (line == 0) 510 (void)strlcpy(reply_string, current_line, 511 sizeof(reply_string)); 512 if (line > 0 && code == 0 && reply_callback != NULL) 513 (*reply_callback)(current_line); 514 if (continuation && code != originalcode) { 515 if (originalcode == 0) 516 originalcode = code; 517 continue; 518 } 519 if (n != '1') 520 cpend = 0; 521 alarmtimer(0); 522 (void)xsignal(SIGINT, oldsigint); 523 (void)xsignal(SIGALRM, oldsigalrm); 524 if (code == 421 || originalcode == 421) 525 lostpeer(0); 526 if (abrtflag && oldsigint != cmdabort && oldsigint != SIG_IGN) 527 (*oldsigint)(SIGINT); 528 if (timeoutflag && oldsigalrm != cmdtimeout && 529 oldsigalrm != SIG_IGN) 530 (*oldsigalrm)(SIGINT); 531 return (n - '0'); 532 } 533 } 534 535 static int 536 empty(FILE *cin, FILE *din, int sec) 537 { 538 int nr, nfd; 539 struct pollfd pfd[2]; 540 541 nfd = 0; 542 if (cin) { 543 pfd[nfd].fd = fileno(cin); 544 pfd[nfd++].events = POLLIN; 545 } 546 547 if (din) { 548 pfd[nfd].fd = fileno(din); 549 pfd[nfd++].events = POLLIN; 550 } 551 552 if ((nr = xpoll(pfd, nfd, sec * 1000)) <= 0) 553 return nr; 554 555 nr = 0; 556 nfd = 0; 557 if (cin) 558 nr |= (pfd[nfd++].revents & POLLIN) ? 1 : 0; 559 if (din) 560 nr |= (pfd[nfd++].revents & POLLIN) ? 2 : 0; 561 return nr; 562 } 563 564 sigjmp_buf xferabort; 565 566 void 567 abortxfer(int notused) 568 { 569 char msgbuf[100]; 570 size_t len; 571 572 sigint_raised = 1; 573 alarmtimer(0); 574 mflag = 0; 575 abrtflag = 0; 576 switch (direction[0]) { 577 case 'r': 578 strlcpy(msgbuf, "\nreceive", sizeof(msgbuf)); 579 break; 580 case 's': 581 strlcpy(msgbuf, "\nsend", sizeof(msgbuf)); 582 break; 583 default: 584 errx(1, "abortxfer called with unknown direction `%s'", 585 direction); 586 } 587 len = strlcat(msgbuf, " aborted. Waiting for remote to finish abort.\n", 588 sizeof(msgbuf)); 589 write(fileno(ttyout), msgbuf, len); 590 siglongjmp(xferabort, 1); 591 } 592 593 void 594 sendrequest(const char *cmd, const char *local, const char *remote, 595 int printnames) 596 { 597 struct stat st; 598 int c, d; 599 FILE *fin, *dout; 600 int (*closefunc)(FILE *); 601 sigfunc oldintr, oldintp; 602 volatile off_t hashbytes; 603 char *lmode, *bufp; 604 static size_t bufsize; 605 static char *buf; 606 int oprogress; 607 608 #ifdef __GNUC__ /* to shut up gcc warnings */ 609 (void)&fin; 610 (void)&dout; 611 (void)&closefunc; 612 (void)&oldintr; 613 (void)&oldintp; 614 (void)&lmode; 615 #endif 616 617 hashbytes = mark; 618 direction = "sent"; 619 dout = NULL; 620 bytes = 0; 621 filesize = -1; 622 oprogress = progress; 623 if (verbose && printnames) { 624 if (local && *local != '-') 625 fprintf(ttyout, "local: %s ", local); 626 if (remote) 627 fprintf(ttyout, "remote: %s\n", remote); 628 } 629 if (proxy) { 630 proxtrans(cmd, local, remote); 631 return; 632 } 633 if (curtype != type) 634 changetype(type, 0); 635 closefunc = NULL; 636 oldintr = NULL; 637 oldintp = NULL; 638 lmode = "w"; 639 if (sigsetjmp(xferabort, 1)) { 640 while (cpend) 641 (void)getreply(0); 642 code = -1; 643 goto cleanupsend; 644 } 645 (void)xsignal(SIGQUIT, psummary); 646 oldintr = xsignal(SIGINT, abortxfer); 647 if (strcmp(local, "-") == 0) { 648 fin = stdin; 649 progress = 0; 650 } else if (*local == '|') { 651 oldintp = xsignal(SIGPIPE, SIG_IGN); 652 fin = popen(local + 1, "r"); 653 if (fin == NULL) { 654 warn("%s", local + 1); 655 code = -1; 656 goto cleanupsend; 657 } 658 progress = 0; 659 closefunc = pclose; 660 } else { 661 fin = fopen(local, "r"); 662 if (fin == NULL) { 663 warn("local: %s", local); 664 code = -1; 665 goto cleanupsend; 666 } 667 closefunc = fclose; 668 if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) { 669 fprintf(ttyout, "%s: not a plain file.\n", local); 670 code = -1; 671 goto cleanupsend; 672 } 673 filesize = st.st_size; 674 } 675 if (initconn()) { 676 code = -1; 677 goto cleanupsend; 678 } 679 if (sigsetjmp(xferabort, 1)) 680 goto abort; 681 682 if (restart_point && 683 (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { 684 int rc; 685 686 rc = -1; 687 switch (curtype) { 688 case TYPE_A: 689 rc = fseeko(fin, restart_point, SEEK_SET); 690 break; 691 case TYPE_I: 692 case TYPE_L: 693 rc = lseek(fileno(fin), restart_point, SEEK_SET); 694 break; 695 } 696 if (rc < 0) { 697 warn("local: %s", local); 698 goto cleanupsend; 699 } 700 if (command("REST " LLF, (LLT)restart_point) != CONTINUE) 701 goto cleanupsend; 702 lmode = "r+"; 703 } 704 if (remote) { 705 if (command("%s %s", cmd, remote) != PRELIM) 706 goto cleanupsend; 707 } else { 708 if (command("%s", cmd) != PRELIM) 709 goto cleanupsend; 710 } 711 dirchange = 1; 712 dout = dataconn(lmode); 713 if (dout == NULL) 714 goto abort; 715 716 if (sndbuf_size > bufsize) { 717 if (buf) 718 (void)free(buf); 719 bufsize = sndbuf_size; 720 buf = xmalloc(bufsize); 721 } 722 723 progressmeter(-1); 724 oldintp = xsignal(SIGPIPE, SIG_IGN); 725 726 switch (curtype) { 727 728 case TYPE_I: 729 case TYPE_L: 730 if (rate_put) { /* rate limited */ 731 while (1) { 732 struct timeval then, now, td; 733 off_t bufrem; 734 735 (void)gettimeofday(&then, NULL); 736 errno = c = d = 0; 737 bufrem = rate_put; 738 while (bufrem > 0) { 739 if ((c = read(fileno(fin), buf, 740 MIN(bufsize, bufrem))) <= 0) 741 goto senddone; 742 bytes += c; 743 bufrem -= c; 744 for (bufp = buf; c > 0; 745 c -= d, bufp += d) 746 if ((d = write(fileno(dout), 747 bufp, c)) <= 0) 748 break; 749 if (d < 0) 750 goto senddone; 751 if (hash && 752 (!progress || filesize < 0) ) { 753 while (bytes >= hashbytes) { 754 (void)putc('#', ttyout); 755 hashbytes += mark; 756 } 757 (void)fflush(ttyout); 758 } 759 } 760 while (1) { 761 (void)gettimeofday(&now, NULL); 762 timersub(&now, &then, &td); 763 if (td.tv_sec > 0) 764 break; 765 usleep(1000000 - td.tv_usec); 766 } 767 } 768 } else { /* simpler/faster; no rate limit */ 769 while (1) { 770 errno = c = d = 0; 771 if ((c = read(fileno(fin), buf, bufsize)) <= 0) 772 goto senddone; 773 bytes += c; 774 for (bufp = buf; c > 0; c -= d, bufp += d) 775 if ((d = write(fileno(dout), bufp, c)) 776 <= 0) 777 break; 778 if (d < 0) 779 goto senddone; 780 if (hash && (!progress || filesize < 0) ) { 781 while (bytes >= hashbytes) { 782 (void)putc('#', ttyout); 783 hashbytes += mark; 784 } 785 (void)fflush(ttyout); 786 } 787 } 788 } 789 senddone: 790 if (hash && (!progress || filesize < 0) && bytes > 0) { 791 if (bytes < mark) 792 (void)putc('#', ttyout); 793 (void)putc('\n', ttyout); 794 } 795 if (c < 0) 796 warn("local: %s", local); 797 if (d < 0) { 798 if (errno != EPIPE) 799 warn("netout"); 800 bytes = -1; 801 } 802 break; 803 804 case TYPE_A: 805 while ((c = getc(fin)) != EOF) { 806 if (c == '\n') { 807 while (hash && (!progress || filesize < 0) && 808 (bytes >= hashbytes)) { 809 (void)putc('#', ttyout); 810 (void)fflush(ttyout); 811 hashbytes += mark; 812 } 813 if (ferror(dout)) 814 break; 815 (void)putc('\r', dout); 816 bytes++; 817 } 818 (void)putc(c, dout); 819 bytes++; 820 #if 0 /* this violates RFC */ 821 if (c == '\r') { 822 (void)putc('\0', dout); 823 bytes++; 824 } 825 #endif 826 } 827 if (hash && (!progress || filesize < 0)) { 828 if (bytes < hashbytes) 829 (void)putc('#', ttyout); 830 (void)putc('\n', ttyout); 831 } 832 if (ferror(fin)) 833 warn("local: %s", local); 834 if (ferror(dout)) { 835 if (errno != EPIPE) 836 warn("netout"); 837 bytes = -1; 838 } 839 break; 840 } 841 842 progressmeter(1); 843 if (closefunc != NULL) { 844 (*closefunc)(fin); 845 fin = NULL; 846 } 847 (void)fclose(dout); 848 dout = NULL; 849 (void)getreply(0); 850 if (bytes > 0) 851 ptransfer(0); 852 goto cleanupsend; 853 854 abort: 855 (void)xsignal(SIGINT, oldintr); 856 oldintr = NULL; 857 if (!cpend) { 858 code = -1; 859 goto cleanupsend; 860 } 861 if (data >= 0) { 862 (void)close(data); 863 data = -1; 864 } 865 if (dout) { 866 (void)fclose(dout); 867 dout = NULL; 868 } 869 (void)getreply(0); 870 code = -1; 871 if (bytes > 0) 872 ptransfer(0); 873 874 cleanupsend: 875 if (oldintr) 876 (void)xsignal(SIGINT, oldintr); 877 if (oldintp) 878 (void)xsignal(SIGPIPE, oldintp); 879 if (data >= 0) { 880 (void)close(data); 881 data = -1; 882 } 883 if (closefunc != NULL && fin != NULL) 884 (*closefunc)(fin); 885 if (dout) 886 (void)fclose(dout); 887 progress = oprogress; 888 restart_point = 0; 889 bytes = 0; 890 } 891 892 void 893 recvrequest(const char *cmd, const char *local, const char *remote, 894 const char *lmode, int printnames, int ignorespecial) 895 { 896 FILE *fout, *din; 897 int (*closefunc)(FILE *); 898 sigfunc oldintr, oldintp; 899 int c, d; 900 volatile int is_retr, tcrflag, bare_lfs; 901 static size_t bufsize; 902 static char *buf; 903 volatile off_t hashbytes; 904 struct stat st; 905 time_t mtime; 906 struct timeval tval[2]; 907 int oprogress; 908 int opreserve; 909 910 #ifdef __GNUC__ /* to shut up gcc warnings */ 911 (void)&local; 912 (void)&fout; 913 (void)&din; 914 (void)&closefunc; 915 (void)&oldintr; 916 (void)&oldintp; 917 #endif 918 919 fout = NULL; 920 din = NULL; 921 hashbytes = mark; 922 direction = "received"; 923 bytes = 0; 924 bare_lfs = 0; 925 filesize = -1; 926 oprogress = progress; 927 opreserve = preserve; 928 is_retr = (strcmp(cmd, "RETR") == 0); 929 if (is_retr && verbose && printnames) { 930 if (local && (ignorespecial || *local != '-')) 931 fprintf(ttyout, "local: %s ", local); 932 if (remote) 933 fprintf(ttyout, "remote: %s\n", remote); 934 } 935 if (proxy && is_retr) { 936 proxtrans(cmd, local, remote); 937 return; 938 } 939 closefunc = NULL; 940 oldintr = NULL; 941 oldintp = NULL; 942 tcrflag = !crflag && is_retr; 943 if (sigsetjmp(xferabort, 1)) { 944 while (cpend) 945 (void)getreply(0); 946 code = -1; 947 goto cleanuprecv; 948 } 949 (void)xsignal(SIGQUIT, psummary); 950 oldintr = xsignal(SIGINT, abortxfer); 951 if (ignorespecial || (strcmp(local, "-") && *local != '|')) { 952 if (access(local, W_OK) < 0) { 953 char *dir = strrchr(local, '/'); 954 955 if (errno != ENOENT && errno != EACCES) { 956 warn("local: %s", local); 957 code = -1; 958 goto cleanuprecv; 959 } 960 if (dir != NULL) 961 *dir = 0; 962 d = access(dir == local ? "/" : 963 dir ? local : ".", W_OK); 964 if (dir != NULL) 965 *dir = '/'; 966 if (d < 0) { 967 warn("local: %s", local); 968 code = -1; 969 goto cleanuprecv; 970 } 971 if (!runique && errno == EACCES && 972 chmod(local, (S_IRUSR|S_IWUSR)) < 0) { 973 warn("local: %s", local); 974 code = -1; 975 goto cleanuprecv; 976 } 977 if (runique && errno == EACCES && 978 (local = gunique(local)) == NULL) { 979 code = -1; 980 goto cleanuprecv; 981 } 982 } 983 else if (runique && (local = gunique(local)) == NULL) { 984 code = -1; 985 goto cleanuprecv; 986 } 987 } 988 if (!is_retr) { 989 if (curtype != TYPE_A) 990 changetype(TYPE_A, 0); 991 } else { 992 if (curtype != type) 993 changetype(type, 0); 994 filesize = remotesize(remote, 0); 995 if (code == 421 || code == -1) 996 goto cleanuprecv; 997 } 998 if (initconn()) { 999 code = -1; 1000 goto cleanuprecv; 1001 } 1002 if (sigsetjmp(xferabort, 1)) 1003 goto abort; 1004 if (is_retr && restart_point && 1005 command("REST " LLF, (LLT) restart_point) != CONTINUE) 1006 goto cleanuprecv; 1007 if (! EMPTYSTRING(remote)) { 1008 if (command("%s %s", cmd, remote) != PRELIM) 1009 goto cleanuprecv; 1010 } else { 1011 if (command("%s", cmd) != PRELIM) 1012 goto cleanuprecv; 1013 } 1014 din = dataconn("r"); 1015 if (din == NULL) 1016 goto abort; 1017 if (!ignorespecial && strcmp(local, "-") == 0) { 1018 fout = stdout; 1019 progress = 0; 1020 preserve = 0; 1021 } else if (!ignorespecial && *local == '|') { 1022 oldintp = xsignal(SIGPIPE, SIG_IGN); 1023 fout = popen(local + 1, "w"); 1024 if (fout == NULL) { 1025 warn("%s", local+1); 1026 goto abort; 1027 } 1028 progress = 0; 1029 preserve = 0; 1030 closefunc = pclose; 1031 } else { 1032 fout = fopen(local, lmode); 1033 if (fout == NULL) { 1034 warn("local: %s", local); 1035 goto abort; 1036 } 1037 closefunc = fclose; 1038 } 1039 1040 if (fstat(fileno(fout), &st) != -1 && !S_ISREG(st.st_mode)) { 1041 progress = 0; 1042 preserve = 0; 1043 } 1044 if (rcvbuf_size > bufsize) { 1045 if (buf) 1046 (void)free(buf); 1047 bufsize = rcvbuf_size; 1048 buf = xmalloc(bufsize); 1049 } 1050 1051 progressmeter(-1); 1052 1053 switch (curtype) { 1054 1055 case TYPE_I: 1056 case TYPE_L: 1057 if (is_retr && restart_point && 1058 lseek(fileno(fout), restart_point, SEEK_SET) < 0) { 1059 warn("local: %s", local); 1060 goto cleanuprecv; 1061 } 1062 if (rate_get) { /* rate limiting */ 1063 while (1) { 1064 struct timeval then, now, td; 1065 off_t bufrem; 1066 1067 (void)gettimeofday(&then, NULL); 1068 errno = c = d = 0; 1069 for (bufrem = rate_get; bufrem > 0; ) { 1070 if ((c = read(fileno(din), buf, 1071 MIN(bufsize, bufrem))) <= 0) 1072 goto recvdone; 1073 bytes += c; 1074 bufrem -=c; 1075 if ((d = write(fileno(fout), buf, c)) 1076 != c) 1077 goto recvdone; 1078 if (hash && 1079 (!progress || filesize < 0)) { 1080 while (bytes >= hashbytes) { 1081 (void)putc('#', ttyout); 1082 hashbytes += mark; 1083 } 1084 (void)fflush(ttyout); 1085 } 1086 } 1087 /* sleep until time is up */ 1088 while (1) { 1089 (void)gettimeofday(&now, NULL); 1090 timersub(&now, &then, &td); 1091 if (td.tv_sec > 0) 1092 break; 1093 usleep(1000000 - td.tv_usec); 1094 } 1095 } 1096 } else { /* faster code (no limiting) */ 1097 while (1) { 1098 errno = c = d = 0; 1099 if ((c = read(fileno(din), buf, bufsize)) <= 0) 1100 goto recvdone; 1101 bytes += c; 1102 if ((d = write(fileno(fout), buf, c)) != c) 1103 goto recvdone; 1104 if (hash && (!progress || filesize < 0)) { 1105 while (bytes >= hashbytes) { 1106 (void)putc('#', ttyout); 1107 hashbytes += mark; 1108 } 1109 (void)fflush(ttyout); 1110 } 1111 } 1112 } 1113 recvdone: 1114 if (hash && (!progress || filesize < 0) && bytes > 0) { 1115 if (bytes < mark) 1116 (void)putc('#', ttyout); 1117 (void)putc('\n', ttyout); 1118 } 1119 if (c < 0) { 1120 if (errno != EPIPE) 1121 warn("netin"); 1122 bytes = -1; 1123 } 1124 if (d < c) { 1125 if (d < 0) 1126 warn("local: %s", local); 1127 else 1128 warnx("%s: short write", local); 1129 } 1130 break; 1131 1132 case TYPE_A: 1133 if (is_retr && restart_point) { 1134 int ch; 1135 off_t i; 1136 1137 if (fseeko(fout, (off_t)0, SEEK_SET) < 0) 1138 goto done; 1139 for (i = 0; i++ < restart_point;) { 1140 if ((ch = getc(fout)) == EOF) 1141 goto done; 1142 if (ch == '\n') 1143 i++; 1144 } 1145 if (fseeko(fout, (off_t)0, SEEK_CUR) < 0) { 1146 done: 1147 warn("local: %s", local); 1148 goto cleanuprecv; 1149 } 1150 } 1151 while ((c = getc(din)) != EOF) { 1152 if (c == '\n') 1153 bare_lfs++; 1154 while (c == '\r') { 1155 while (hash && (!progress || filesize < 0) && 1156 (bytes >= hashbytes)) { 1157 (void)putc('#', ttyout); 1158 (void)fflush(ttyout); 1159 hashbytes += mark; 1160 } 1161 bytes++; 1162 if ((c = getc(din)) != '\n' || tcrflag) { 1163 if (ferror(fout)) 1164 goto break2; 1165 (void)putc('\r', fout); 1166 if (c == '\0') { 1167 bytes++; 1168 goto contin2; 1169 } 1170 if (c == EOF) 1171 goto contin2; 1172 } 1173 } 1174 (void)putc(c, fout); 1175 bytes++; 1176 contin2: ; 1177 } 1178 break2: 1179 if (hash && (!progress || filesize < 0)) { 1180 if (bytes < hashbytes) 1181 (void)putc('#', ttyout); 1182 (void)putc('\n', ttyout); 1183 } 1184 if (ferror(din)) { 1185 if (errno != EPIPE) 1186 warn("netin"); 1187 bytes = -1; 1188 } 1189 if (ferror(fout)) 1190 warn("local: %s", local); 1191 break; 1192 } 1193 1194 progressmeter(1); 1195 if (closefunc != NULL) { 1196 (*closefunc)(fout); 1197 fout = NULL; 1198 } 1199 (void)fclose(din); 1200 din = NULL; 1201 (void)getreply(0); 1202 if (bare_lfs) { 1203 fprintf(ttyout, 1204 "WARNING! %d bare linefeeds received in ASCII mode.\n", 1205 bare_lfs); 1206 fputs("File may not have transferred correctly.\n", ttyout); 1207 } 1208 if (bytes >= 0 && is_retr) { 1209 if (bytes > 0) 1210 ptransfer(0); 1211 if (preserve && (closefunc == fclose)) { 1212 mtime = remotemodtime(remote, 0); 1213 if (mtime != -1) { 1214 (void)gettimeofday(&tval[0], NULL); 1215 tval[1].tv_sec = mtime; 1216 tval[1].tv_usec = 0; 1217 if (utimes(local, tval) == -1) { 1218 fprintf(ttyout, 1219 "Can't change modification time on %s to %s", 1220 local, asctime(localtime(&mtime))); 1221 } 1222 } 1223 } 1224 } 1225 goto cleanuprecv; 1226 1227 abort: 1228 /* 1229 * abort using RFC 959 recommended IP,SYNC sequence 1230 */ 1231 if (! sigsetjmp(xferabort, 1)) { 1232 /* this is the first call */ 1233 (void)xsignal(SIGINT, abort_squared); 1234 if (!cpend) { 1235 code = -1; 1236 goto cleanuprecv; 1237 } 1238 abort_remote(din); 1239 } 1240 code = -1; 1241 if (bytes > 0) 1242 ptransfer(0); 1243 1244 cleanuprecv: 1245 if (oldintr) 1246 (void)xsignal(SIGINT, oldintr); 1247 if (oldintp) 1248 (void)xsignal(SIGPIPE, oldintp); 1249 if (data >= 0) { 1250 (void)close(data); 1251 data = -1; 1252 } 1253 if (closefunc != NULL && fout != NULL) 1254 (*closefunc)(fout); 1255 if (din) 1256 (void)fclose(din); 1257 progress = oprogress; 1258 preserve = opreserve; 1259 bytes = 0; 1260 } 1261 1262 /* 1263 * Need to start a listen on the data channel before we send the command, 1264 * otherwise the server's connect may fail. 1265 */ 1266 int 1267 initconn(void) 1268 { 1269 char *p, *a; 1270 int result, tmpno = 0; 1271 int on = 1; 1272 int error; 1273 unsigned int addr[16], port[2]; 1274 unsigned int af, hal, pal; 1275 socklen_t len; 1276 char *pasvcmd = NULL; 1277 1278 #ifdef INET6 1279 #ifndef NO_DEBUG 1280 if (myctladdr.su_family == AF_INET6 && debug && 1281 (IN6_IS_ADDR_LINKLOCAL(&myctladdr.si_su.su_sin6.sin6_addr) || 1282 IN6_IS_ADDR_SITELOCAL(&myctladdr.si_su.su_sin6.sin6_addr))) { 1283 warnx("use of scoped address can be troublesome"); 1284 } 1285 #endif 1286 #endif 1287 reinit: 1288 if (passivemode) { 1289 data_addr = myctladdr; 1290 data = socket(data_addr.su_family, SOCK_STREAM, 0); 1291 if (data < 0) { 1292 warn("socket"); 1293 return (1); 1294 } 1295 if ((options & SO_DEBUG) && 1296 setsockopt(data, SOL_SOCKET, SO_DEBUG, 1297 (void *)&on, sizeof(on)) == -1) { 1298 DWARN("setsockopt %s (ignored)", "SO_DEBUG"); 1299 } 1300 result = COMPLETE + 1; 1301 switch (data_addr.su_family) { 1302 case AF_INET: 1303 if (epsv4 && !epsv4bad) { 1304 pasvcmd = "EPSV"; 1305 result = command("EPSV"); 1306 if (!connected) 1307 return (1); 1308 /* 1309 * this code is to be friendly with broken 1310 * BSDI ftpd 1311 */ 1312 if (code / 10 == 22 && code != 229) { 1313 fputs( 1314 "wrong server: return code must be 229\n", 1315 ttyout); 1316 result = COMPLETE + 1; 1317 } 1318 if (result != COMPLETE) { 1319 epsv4bad = 1; 1320 DPRINTF("disabling epsv4 for this " 1321 "connection\n"); 1322 } 1323 } 1324 if (result != COMPLETE) { 1325 pasvcmd = "PASV"; 1326 result = command("PASV"); 1327 if (!connected) 1328 return (1); 1329 } 1330 break; 1331 #ifdef INET6 1332 case AF_INET6: 1333 pasvcmd = "EPSV"; 1334 result = command("EPSV"); 1335 if (!connected) 1336 return (1); 1337 /* this code is to be friendly with broken BSDI ftpd */ 1338 if (code / 10 == 22 && code != 229) { 1339 fputs( 1340 "wrong server: return code must be 229\n", 1341 ttyout); 1342 result = COMPLETE + 1; 1343 } 1344 if (result != COMPLETE) { 1345 pasvcmd = "LPSV"; 1346 result = command("LPSV"); 1347 } 1348 if (!connected) 1349 return (1); 1350 break; 1351 #endif 1352 default: 1353 result = COMPLETE + 1; 1354 break; 1355 } 1356 if (result != COMPLETE) { 1357 if (activefallback) { 1358 (void)close(data); 1359 data = -1; 1360 passivemode = 0; 1361 #if 0 1362 activefallback = 0; 1363 #endif 1364 goto reinit; 1365 } 1366 fputs("Passive mode refused.\n", ttyout); 1367 goto bad; 1368 } 1369 1370 #define pack2(var, off) \ 1371 (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) 1372 #define pack4(var, off) \ 1373 (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \ 1374 ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) 1375 #define UC(b) (((int)b)&0xff) 1376 1377 /* 1378 * What we've got at this point is a string of comma separated 1379 * one-byte unsigned integer values, separated by commas. 1380 */ 1381 if (strcmp(pasvcmd, "PASV") == 0) { 1382 if (data_addr.su_family != AF_INET) { 1383 fputs( 1384 "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); 1385 error = 1; 1386 goto bad; 1387 } 1388 if (code / 10 == 22 && code != 227) { 1389 fputs("wrong server: return code must be 227\n", 1390 ttyout); 1391 error = 1; 1392 goto bad; 1393 } 1394 error = sscanf(pasv, "%u,%u,%u,%u,%u,%u", 1395 &addr[0], &addr[1], &addr[2], &addr[3], 1396 &port[0], &port[1]); 1397 if (error != 6) { 1398 fputs( 1399 "Passive mode address scan failure. Shouldn't happen!\n", ttyout); 1400 error = 1; 1401 goto bad; 1402 } 1403 error = 0; 1404 memset(&data_addr, 0, sizeof(data_addr)); 1405 data_addr.su_family = AF_INET; 1406 data_addr.su_len = sizeof(struct sockaddr_in); 1407 data_addr.si_su.su_sin.sin_addr.s_addr = 1408 htonl(pack4(addr, 0)); 1409 data_addr.su_port = htons(pack2(port, 0)); 1410 } else if (strcmp(pasvcmd, "LPSV") == 0) { 1411 if (code / 10 == 22 && code != 228) { 1412 fputs("wrong server: return code must be 228\n", 1413 ttyout); 1414 error = 1; 1415 goto bad; 1416 } 1417 switch (data_addr.su_family) { 1418 case AF_INET: 1419 error = sscanf(pasv, 1420 "%u,%u,%u,%u,%u,%u,%u,%u,%u", 1421 &af, &hal, 1422 &addr[0], &addr[1], &addr[2], &addr[3], 1423 &pal, &port[0], &port[1]); 1424 if (error != 9) { 1425 fputs( 1426 "Passive mode address scan failure. Shouldn't happen!\n", ttyout); 1427 error = 1; 1428 goto bad; 1429 } 1430 if (af != 4 || hal != 4 || pal != 2) { 1431 fputs( 1432 "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); 1433 error = 1; 1434 goto bad; 1435 } 1436 1437 error = 0; 1438 memset(&data_addr, 0, sizeof(data_addr)); 1439 data_addr.su_family = AF_INET; 1440 data_addr.su_len = sizeof(struct sockaddr_in); 1441 data_addr.si_su.su_sin.sin_addr.s_addr = 1442 htonl(pack4(addr, 0)); 1443 data_addr.su_port = htons(pack2(port, 0)); 1444 break; 1445 #ifdef INET6 1446 case AF_INET6: 1447 error = sscanf(pasv, 1448 "%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", 1449 &af, &hal, 1450 &addr[0], &addr[1], &addr[2], &addr[3], 1451 &addr[4], &addr[5], &addr[6], &addr[7], 1452 &addr[8], &addr[9], &addr[10], 1453 &addr[11], &addr[12], &addr[13], 1454 &addr[14], &addr[15], 1455 &pal, &port[0], &port[1]); 1456 if (error != 21) { 1457 fputs( 1458 "Passive mode address scan failure. Shouldn't happen!\n", ttyout); 1459 error = 1; 1460 goto bad; 1461 } 1462 if (af != 6 || hal != 16 || pal != 2) { 1463 fputs( 1464 "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); 1465 error = 1; 1466 goto bad; 1467 } 1468 1469 error = 0; 1470 memset(&data_addr, 0, sizeof(data_addr)); 1471 data_addr.su_family = AF_INET6; 1472 data_addr.su_len = sizeof(struct sockaddr_in6); 1473 { 1474 int i; 1475 for (i = 0; i < sizeof(struct in6_addr); i++) { 1476 data_addr.si_su.su_sin6.sin6_addr.s6_addr[i] = 1477 UC(addr[i]); 1478 } 1479 } 1480 data_addr.su_port = htons(pack2(port, 0)); 1481 break; 1482 #endif 1483 default: 1484 error = 1; 1485 } 1486 } else if (strcmp(pasvcmd, "EPSV") == 0) { 1487 char delim[4]; 1488 1489 port[0] = 0; 1490 if (code / 10 == 22 && code != 229) { 1491 fputs("wrong server: return code must be 229\n", 1492 ttyout); 1493 error = 1; 1494 goto bad; 1495 } 1496 if (sscanf(pasv, "%c%c%c%d%c", &delim[0], 1497 &delim[1], &delim[2], &port[1], 1498 &delim[3]) != 5) { 1499 fputs("parse error!\n", ttyout); 1500 error = 1; 1501 goto bad; 1502 } 1503 if (delim[0] != delim[1] || delim[0] != delim[2] 1504 || delim[0] != delim[3]) { 1505 fputs("parse error!\n", ttyout); 1506 error = 1; 1507 goto bad; 1508 } 1509 data_addr = hisctladdr; 1510 data_addr.su_port = htons(port[1]); 1511 } else 1512 goto bad; 1513 1514 while (xconnect(data, (struct sockaddr *)&data_addr.si_su, 1515 data_addr.su_len) < 0) { 1516 if (activefallback) { 1517 (void)close(data); 1518 data = -1; 1519 passivemode = 0; 1520 #if 0 1521 activefallback = 0; 1522 #endif 1523 goto reinit; 1524 } 1525 warn("connect for data channel"); 1526 goto bad; 1527 } 1528 #ifdef IPTOS_THROUGHPUT 1529 if (data_addr.su_family == AF_INET) { 1530 on = IPTOS_THROUGHPUT; 1531 if (setsockopt(data, IPPROTO_IP, IP_TOS, 1532 (void *)&on, sizeof(on)) == -1) { 1533 DWARN("setsockopt %s (ignored)", 1534 "IPTOS_THROUGHPUT"); 1535 } 1536 } 1537 #endif 1538 return (0); 1539 } 1540 1541 noport: 1542 data_addr = myctladdr; 1543 if (sendport) 1544 data_addr.su_port = 0; /* let system pick one */ 1545 if (data != -1) 1546 (void)close(data); 1547 data = socket(data_addr.su_family, SOCK_STREAM, 0); 1548 if (data < 0) { 1549 warn("socket"); 1550 if (tmpno) 1551 sendport = 1; 1552 return (1); 1553 } 1554 if (!sendport) 1555 if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, 1556 (void *)&on, sizeof(on)) == -1) { 1557 warn("setsockopt %s", "SO_REUSEADDR"); 1558 goto bad; 1559 } 1560 if (bind(data, (struct sockaddr *)&data_addr.si_su, 1561 data_addr.su_len) < 0) { 1562 warn("bind"); 1563 goto bad; 1564 } 1565 if ((options & SO_DEBUG) && 1566 setsockopt(data, SOL_SOCKET, SO_DEBUG, 1567 (void *)&on, sizeof(on)) == -1) { 1568 DWARN("setsockopt %s (ignored)", "SO_DEBUG"); 1569 } 1570 len = sizeof(data_addr.si_su); 1571 memset((char *)&data_addr, 0, sizeof (data_addr)); 1572 if (getsockname(data, (struct sockaddr *)&data_addr.si_su, &len) == -1) { 1573 warn("getsockname"); 1574 goto bad; 1575 } 1576 data_addr.su_len = len; 1577 if (xlisten(data, 1) < 0) 1578 warn("listen"); 1579 1580 if (sendport) { 1581 char hname[NI_MAXHOST], sname[NI_MAXSERV]; 1582 int af; 1583 struct sockinet tmp; 1584 1585 switch (data_addr.su_family) { 1586 case AF_INET: 1587 if (!epsv4 || epsv4bad) { 1588 result = COMPLETE + 1; 1589 break; 1590 } 1591 /* FALLTHROUGH */ 1592 #ifdef INET6 1593 case AF_INET6: 1594 #endif 1595 af = (data_addr.su_family == AF_INET) ? 1 : 2; 1596 tmp = data_addr; 1597 #ifdef INET6 1598 if (tmp.su_family == AF_INET6) 1599 tmp.si_su.su_sin6.sin6_scope_id = 0; 1600 #endif 1601 if (getnameinfo((struct sockaddr *)&tmp.si_su, 1602 tmp.su_len, hname, sizeof(hname), sname, 1603 sizeof(sname), NI_NUMERICHOST | NI_NUMERICSERV)) { 1604 result = ERROR; 1605 } else { 1606 result = command("EPRT |%d|%s|%s|", af, hname, 1607 sname); 1608 if (!connected) 1609 return (1); 1610 if (result != COMPLETE) { 1611 epsv4bad = 1; 1612 DPRINTF("disabling epsv4 for this " 1613 "connection\n"); 1614 } 1615 } 1616 break; 1617 default: 1618 result = COMPLETE + 1; 1619 break; 1620 } 1621 if (result == COMPLETE) 1622 goto skip_port; 1623 1624 switch (data_addr.su_family) { 1625 case AF_INET: 1626 a = (char *)&data_addr.si_su.su_sin.sin_addr; 1627 p = (char *)&data_addr.su_port; 1628 result = command("PORT %d,%d,%d,%d,%d,%d", 1629 UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]), 1630 UC(p[0]), UC(p[1])); 1631 break; 1632 #ifdef INET6 1633 case AF_INET6: 1634 a = (char *)&data_addr.si_su.su_sin6.sin6_addr; 1635 p = (char *)&data_addr.su_port; 1636 result = command( 1637 "LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", 1638 6, 16, 1639 UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]), 1640 UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]), 1641 UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]), 1642 UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]), 1643 2, UC(p[0]), UC(p[1])); 1644 break; 1645 #endif 1646 default: 1647 result = COMPLETE + 1; /* xxx */ 1648 } 1649 if (!connected) 1650 return (1); 1651 skip_port: 1652 1653 if (result == ERROR && sendport == -1) { 1654 sendport = 0; 1655 tmpno = 1; 1656 goto noport; 1657 } 1658 return (result != COMPLETE); 1659 } 1660 if (tmpno) 1661 sendport = 1; 1662 #ifdef IPTOS_THROUGHPUT 1663 if (data_addr.su_family == AF_INET) { 1664 on = IPTOS_THROUGHPUT; 1665 if (setsockopt(data, IPPROTO_IP, IP_TOS, 1666 (void *)&on, sizeof(on)) == -1) 1667 DWARN("setsockopt %s (ignored)", "IPTOS_THROUGHPUT"); 1668 } 1669 #endif 1670 return (0); 1671 bad: 1672 (void)close(data); 1673 data = -1; 1674 if (tmpno) 1675 sendport = 1; 1676 return (1); 1677 } 1678 1679 FILE * 1680 dataconn(const char *lmode) 1681 { 1682 struct sockinet from; 1683 int s, flags, rv, timeout; 1684 struct timeval endtime, now, td; 1685 struct pollfd pfd[1]; 1686 socklen_t fromlen; 1687 1688 if (passivemode) /* passive data connection */ 1689 return (fdopen(data, lmode)); 1690 1691 /* active mode data connection */ 1692 1693 if ((flags = fcntl(data, F_GETFL, 0)) == -1) 1694 goto dataconn_failed; /* get current socket flags */ 1695 if (fcntl(data, F_SETFL, flags | O_NONBLOCK) == -1) 1696 goto dataconn_failed; /* set non-blocking connect */ 1697 1698 /* NOTE: we now must restore socket flags on successful exit */ 1699 1700 /* limit time waiting on listening socket */ 1701 pfd[0].fd = data; 1702 pfd[0].events = POLLIN; 1703 (void)gettimeofday(&endtime, NULL); /* determine end time */ 1704 endtime.tv_sec += (quit_time > 0) ? quit_time: 60; 1705 /* without -q, default to 60s */ 1706 do { 1707 (void)gettimeofday(&now, NULL); 1708 timersub(&endtime, &now, &td); 1709 timeout = td.tv_sec * 1000 + td.tv_usec/1000; 1710 if (timeout < 0) 1711 timeout = 0; 1712 rv = xpoll(pfd, 1, timeout); 1713 } while (rv == -1 && errno == EINTR); /* loop until poll ! EINTR */ 1714 if (rv == -1) { 1715 warn("poll waiting before accept"); 1716 goto dataconn_failed; 1717 } 1718 if (rv == 0) { 1719 warn("poll timeout waiting before accept"); 1720 goto dataconn_failed; 1721 } 1722 1723 /* (non-blocking) accept the connection */ 1724 fromlen = myctladdr.su_len; 1725 do { 1726 s = accept(data, (struct sockaddr *) &from.si_su, &fromlen); 1727 } while (s == -1 && errno == EINTR); /* loop until accept ! EINTR */ 1728 if (s == -1) { 1729 warn("accept"); 1730 goto dataconn_failed; 1731 } 1732 1733 (void)close(data); 1734 data = s; 1735 if (fcntl(data, F_SETFL, flags) == -1) /* restore socket flags */ 1736 goto dataconn_failed; 1737 1738 #ifdef IPTOS_THROUGHPUT 1739 if (from.su_family == AF_INET) { 1740 int tos = IPTOS_THROUGHPUT; 1741 if (setsockopt(s, IPPROTO_IP, IP_TOS, 1742 (void *)&tos, sizeof(tos)) == -1) { 1743 DWARN("setsockopt %s (ignored)", "IPTOS_THROUGHPUT"); 1744 } 1745 } 1746 #endif 1747 return (fdopen(data, lmode)); 1748 1749 dataconn_failed: 1750 (void)close(data); 1751 data = -1; 1752 return (NULL); 1753 } 1754 1755 void 1756 psabort(int notused) 1757 { 1758 int oerrno = errno; 1759 1760 sigint_raised = 1; 1761 alarmtimer(0); 1762 abrtflag++; 1763 errno = oerrno; 1764 } 1765 1766 void 1767 pswitch(int flag) 1768 { 1769 sigfunc oldintr; 1770 static struct comvars { 1771 int connect; 1772 char name[MAXHOSTNAMELEN]; 1773 struct sockinet mctl; 1774 struct sockinet hctl; 1775 FILE *in; 1776 FILE *out; 1777 int tpe; 1778 int curtpe; 1779 int cpnd; 1780 int sunqe; 1781 int runqe; 1782 int mcse; 1783 int ntflg; 1784 char nti[17]; 1785 char nto[17]; 1786 int mapflg; 1787 char mi[MAXPATHLEN]; 1788 char mo[MAXPATHLEN]; 1789 } proxstruct, tmpstruct; 1790 struct comvars *ip, *op; 1791 1792 abrtflag = 0; 1793 oldintr = xsignal(SIGINT, psabort); 1794 if (flag) { 1795 if (proxy) 1796 return; 1797 ip = &tmpstruct; 1798 op = &proxstruct; 1799 proxy++; 1800 } else { 1801 if (!proxy) 1802 return; 1803 ip = &proxstruct; 1804 op = &tmpstruct; 1805 proxy = 0; 1806 } 1807 ip->connect = connected; 1808 connected = op->connect; 1809 if (hostname) 1810 (void)strlcpy(ip->name, hostname, sizeof(ip->name)); 1811 else 1812 ip->name[0] = '\0'; 1813 hostname = op->name; 1814 ip->hctl = hisctladdr; 1815 hisctladdr = op->hctl; 1816 ip->mctl = myctladdr; 1817 myctladdr = op->mctl; 1818 ip->in = cin; 1819 cin = op->in; 1820 ip->out = cout; 1821 cout = op->out; 1822 ip->tpe = type; 1823 type = op->tpe; 1824 ip->curtpe = curtype; 1825 curtype = op->curtpe; 1826 ip->cpnd = cpend; 1827 cpend = op->cpnd; 1828 ip->sunqe = sunique; 1829 sunique = op->sunqe; 1830 ip->runqe = runique; 1831 runique = op->runqe; 1832 ip->mcse = mcase; 1833 mcase = op->mcse; 1834 ip->ntflg = ntflag; 1835 ntflag = op->ntflg; 1836 (void)strlcpy(ip->nti, ntin, sizeof(ip->nti)); 1837 (void)strlcpy(ntin, op->nti, sizeof(ntin)); 1838 (void)strlcpy(ip->nto, ntout, sizeof(ip->nto)); 1839 (void)strlcpy(ntout, op->nto, sizeof(ntout)); 1840 ip->mapflg = mapflag; 1841 mapflag = op->mapflg; 1842 (void)strlcpy(ip->mi, mapin, sizeof(ip->mi)); 1843 (void)strlcpy(mapin, op->mi, sizeof(mapin)); 1844 (void)strlcpy(ip->mo, mapout, sizeof(ip->mo)); 1845 (void)strlcpy(mapout, op->mo, sizeof(mapout)); 1846 (void)xsignal(SIGINT, oldintr); 1847 if (abrtflag) { 1848 abrtflag = 0; 1849 (*oldintr)(SIGINT); 1850 } 1851 } 1852 1853 void 1854 abortpt(int notused) 1855 { 1856 1857 sigint_raised = 1; 1858 alarmtimer(0); 1859 if (fromatty) 1860 write(fileno(ttyout), "\n", 1); 1861 ptabflg++; 1862 mflag = 0; 1863 abrtflag = 0; 1864 siglongjmp(ptabort, 1); 1865 } 1866 1867 void 1868 proxtrans(const char *cmd, const char *local, const char *remote) 1869 { 1870 sigfunc oldintr; 1871 int prox_type, nfnd; 1872 volatile int secndflag; 1873 char *cmd2; 1874 1875 #ifdef __GNUC__ /* to shut up gcc warnings */ 1876 (void)&oldintr; 1877 (void)&cmd2; 1878 #endif 1879 1880 oldintr = NULL; 1881 secndflag = 0; 1882 if (strcmp(cmd, "RETR")) 1883 cmd2 = "RETR"; 1884 else 1885 cmd2 = runique ? "STOU" : "STOR"; 1886 if ((prox_type = type) == 0) { 1887 if (unix_server && unix_proxy) 1888 prox_type = TYPE_I; 1889 else 1890 prox_type = TYPE_A; 1891 } 1892 if (curtype != prox_type) 1893 changetype(prox_type, 1); 1894 if (command("PASV") != COMPLETE) { 1895 fputs("proxy server does not support third party transfers.\n", 1896 ttyout); 1897 return; 1898 } 1899 pswitch(0); 1900 if (!connected) { 1901 fputs("No primary connection.\n", ttyout); 1902 pswitch(1); 1903 code = -1; 1904 return; 1905 } 1906 if (curtype != prox_type) 1907 changetype(prox_type, 1); 1908 if (command("PORT %s", pasv) != COMPLETE) { 1909 pswitch(1); 1910 return; 1911 } 1912 if (sigsetjmp(ptabort, 1)) 1913 goto abort; 1914 oldintr = xsignal(SIGINT, abortpt); 1915 if ((restart_point && 1916 (command("REST " LLF, (LLT) restart_point) != CONTINUE)) 1917 || (command("%s %s", cmd, remote) != PRELIM)) { 1918 (void)xsignal(SIGINT, oldintr); 1919 pswitch(1); 1920 return; 1921 } 1922 sleep(2); 1923 pswitch(1); 1924 secndflag++; 1925 if ((restart_point && 1926 (command("REST " LLF, (LLT) restart_point) != CONTINUE)) 1927 || (command("%s %s", cmd2, local) != PRELIM)) 1928 goto abort; 1929 ptflag++; 1930 (void)getreply(0); 1931 pswitch(0); 1932 (void)getreply(0); 1933 (void)xsignal(SIGINT, oldintr); 1934 pswitch(1); 1935 ptflag = 0; 1936 fprintf(ttyout, "local: %s remote: %s\n", local, remote); 1937 return; 1938 abort: 1939 if (sigsetjmp(xferabort, 1)) { 1940 (void)xsignal(SIGINT, oldintr); 1941 return; 1942 } 1943 (void)xsignal(SIGINT, abort_squared); 1944 ptflag = 0; 1945 if (strcmp(cmd, "RETR") && !proxy) 1946 pswitch(1); 1947 else if (!strcmp(cmd, "RETR") && proxy) 1948 pswitch(0); 1949 if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ 1950 if (command("%s %s", cmd2, local) != PRELIM) { 1951 pswitch(0); 1952 if (cpend) 1953 abort_remote(NULL); 1954 } 1955 pswitch(1); 1956 if (ptabflg) 1957 code = -1; 1958 (void)xsignal(SIGINT, oldintr); 1959 return; 1960 } 1961 if (cpend) 1962 abort_remote(NULL); 1963 pswitch(!proxy); 1964 if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ 1965 if (command("%s %s", cmd2, local) != PRELIM) { 1966 pswitch(0); 1967 if (cpend) 1968 abort_remote(NULL); 1969 pswitch(1); 1970 if (ptabflg) 1971 code = -1; 1972 (void)xsignal(SIGINT, oldintr); 1973 return; 1974 } 1975 } 1976 if (cpend) 1977 abort_remote(NULL); 1978 pswitch(!proxy); 1979 if (cpend) { 1980 if ((nfnd = empty(cin, NULL, 10)) <= 0) { 1981 if (nfnd < 0) 1982 warn("abort"); 1983 if (ptabflg) 1984 code = -1; 1985 lostpeer(0); 1986 } 1987 (void)getreply(0); 1988 (void)getreply(0); 1989 } 1990 if (proxy) 1991 pswitch(0); 1992 pswitch(1); 1993 if (ptabflg) 1994 code = -1; 1995 (void)xsignal(SIGINT, oldintr); 1996 } 1997 1998 void 1999 reset(int argc, char *argv[]) 2000 { 2001 int nfnd = 1; 2002 2003 if (argc == 0 && argv != NULL) { 2004 UPRINTF("usage: %s\n", argv[0]); 2005 code = -1; 2006 return; 2007 } 2008 while (nfnd > 0) { 2009 if ((nfnd = empty(cin, NULL, 0)) < 0) { 2010 warn("reset"); 2011 code = -1; 2012 lostpeer(0); 2013 } else if (nfnd) 2014 (void)getreply(0); 2015 } 2016 } 2017 2018 char * 2019 gunique(const char *local) 2020 { 2021 static char new[MAXPATHLEN]; 2022 char *cp = strrchr(local, '/'); 2023 int d, count=0, len; 2024 char ext = '1'; 2025 2026 if (cp) 2027 *cp = '\0'; 2028 d = access(cp == local ? "/" : cp ? local : ".", W_OK); 2029 if (cp) 2030 *cp = '/'; 2031 if (d < 0) { 2032 warn("local: %s", local); 2033 return (NULL); 2034 } 2035 len = strlcpy(new, local, sizeof(new)); 2036 cp = &new[len]; 2037 *cp++ = '.'; 2038 while (!d) { 2039 if (++count == 100) { 2040 fputs("runique: can't find unique file name.\n", 2041 ttyout); 2042 return (NULL); 2043 } 2044 *cp++ = ext; 2045 *cp = '\0'; 2046 if (ext == '9') 2047 ext = '0'; 2048 else 2049 ext++; 2050 if ((d = access(new, F_OK)) < 0) 2051 break; 2052 if (ext != '0') 2053 cp--; 2054 else if (*(cp - 2) == '.') 2055 *(cp - 1) = '1'; 2056 else { 2057 *(cp - 2) = *(cp - 2) + 1; 2058 cp--; 2059 } 2060 } 2061 return (new); 2062 } 2063 2064 /* 2065 * abort_squared -- 2066 * aborts abort_remote(). lostpeer() is called because if the user is 2067 * too impatient to wait or there's another problem then ftp really 2068 * needs to get back to a known state. 2069 */ 2070 void 2071 abort_squared(int dummy) 2072 { 2073 char msgbuf[100]; 2074 size_t len; 2075 2076 sigint_raised = 1; 2077 alarmtimer(0); 2078 len = strlcpy(msgbuf, "\nremote abort aborted; closing connection.\n", 2079 sizeof(msgbuf)); 2080 write(fileno(ttyout), msgbuf, len); 2081 lostpeer(0); 2082 siglongjmp(xferabort, 1); 2083 } 2084 2085 void 2086 abort_remote(FILE *din) 2087 { 2088 char buf[BUFSIZ]; 2089 int nfnd; 2090 2091 if (cout == NULL) { 2092 warnx("Lost control connection for abort."); 2093 if (ptabflg) 2094 code = -1; 2095 lostpeer(0); 2096 return; 2097 } 2098 /* 2099 * send IAC in urgent mode instead of DM because 4.3BSD places oob mark 2100 * after urgent byte rather than before as is protocol now 2101 */ 2102 buf[0] = IAC; 2103 buf[1] = IP; 2104 buf[2] = IAC; 2105 if (send(fileno(cout), buf, 3, MSG_OOB) != 3) 2106 warn("abort"); 2107 fprintf(cout, "%cABOR\r\n", DM); 2108 (void)fflush(cout); 2109 if ((nfnd = empty(cin, din, 10)) <= 0) { 2110 if (nfnd < 0) 2111 warn("abort"); 2112 if (ptabflg) 2113 code = -1; 2114 lostpeer(0); 2115 } 2116 if (din && (nfnd & 2)) { 2117 while (read(fileno(din), buf, BUFSIZ) > 0) 2118 continue; 2119 } 2120 if (getreply(0) == ERROR && code == 552) { 2121 /* 552 needed for nic style abort */ 2122 (void)getreply(0); 2123 } 2124 (void)getreply(0); 2125 } 2126 2127 void 2128 ai_unmapped(struct addrinfo *ai) 2129 { 2130 #ifdef INET6 2131 struct sockaddr_in6 *sin6; 2132 struct sockaddr_in sin; 2133 socklen_t len; 2134 2135 if (ai->ai_family != AF_INET6) 2136 return; 2137 if (ai->ai_addrlen != sizeof(struct sockaddr_in6) || 2138 sizeof(sin) > ai->ai_addrlen) 2139 return; 2140 sin6 = (struct sockaddr_in6 *)ai->ai_addr; 2141 if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) 2142 return; 2143 2144 memset(&sin, 0, sizeof(sin)); 2145 sin.sin_family = AF_INET; 2146 len = sizeof(struct sockaddr_in); 2147 memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr[12], 2148 sizeof(sin.sin_addr)); 2149 sin.sin_port = sin6->sin6_port; 2150 2151 ai->ai_family = AF_INET; 2152 #if HAVE_SOCKADDR_SA_LEN 2153 sin.sin_len = len; 2154 #endif 2155 memcpy(ai->ai_addr, &sin, len); 2156 ai->ai_addrlen = len; 2157 #endif 2158 } 2159 2160 #ifdef NO_USAGE 2161 void 2162 xusage(void) 2163 { 2164 fputs("Usage error\n", ttyout); 2165 } 2166 #endif 2167