main.c revision 1.120.2.1
1 /* $NetBSD: main.c,v 1.120.2.1 2013/12/17 21:07:59 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c) 1996-2009 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1985, 1989, 1993, 1994 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 */ 60 61 /* 62 * Copyright (C) 1997 and 1998 WIDE Project. 63 * All rights reserved. 64 * 65 * Redistribution and use in source and binary forms, with or without 66 * modification, are permitted provided that the following conditions 67 * are met: 68 * 1. Redistributions of source code must retain the above copyright 69 * notice, this list of conditions and the following disclaimer. 70 * 2. Redistributions in binary form must reproduce the above copyright 71 * notice, this list of conditions and the following disclaimer in the 72 * documentation and/or other materials provided with the distribution. 73 * 3. Neither the name of the project nor the names of its contributors 74 * may be used to endorse or promote products derived from this software 75 * without specific prior written permission. 76 * 77 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 78 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 79 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 80 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 81 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 82 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 83 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 84 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 85 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 86 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 87 * SUCH DAMAGE. 88 */ 89 90 #include <sys/cdefs.h> 91 #ifndef lint 92 __COPYRIGHT("@(#) Copyright (c) 1985, 1989, 1993, 1994\ 93 The Regents of the University of California. All rights reserved.\ 94 Copyright 1996-2008 The NetBSD Foundation, Inc. All rights reserved"); 95 #endif /* not lint */ 96 97 #ifndef lint 98 #if 0 99 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94"; 100 #else 101 __RCSID("$NetBSD: main.c,v 1.120.2.1 2013/12/17 21:07:59 bouyer Exp $"); 102 #endif 103 #endif /* not lint */ 104 105 /* 106 * FTP User Program -- Command Interface. 107 */ 108 #include <sys/types.h> 109 #include <sys/socket.h> 110 111 #include <err.h> 112 #include <errno.h> 113 #include <netdb.h> 114 #include <paths.h> 115 #include <pwd.h> 116 #include <signal.h> 117 #include <stdio.h> 118 #include <stdlib.h> 119 #include <string.h> 120 #include <time.h> 121 #include <unistd.h> 122 #include <locale.h> 123 124 #define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */ 125 #include "ftp_var.h" 126 127 #define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */ 128 #define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */ 129 #define HTTPS_PROXY "https_proxy" /* env var with HTTPS proxy location */ 130 #define NO_PROXY "no_proxy" /* env var with list of non-proxied 131 * hosts, comma or space separated */ 132 133 __dead static void usage(void); 134 static void setupoption(const char *, const char *, const char *); 135 136 int 137 main(int volatile argc, char **volatile argv) 138 { 139 int ch, rval; 140 struct passwd *pw; 141 char *cp, *ep, *anonpass, *upload_path, *src_addr; 142 const char *anonuser; 143 int dumbterm, isupload; 144 size_t len; 145 146 tzset(); 147 setlocale(LC_ALL, ""); 148 setprogname(argv[0]); 149 150 sigint_raised = 0; 151 152 ftpport = "ftp"; 153 httpport = "http"; 154 #ifdef WITH_SSL 155 httpsport = "https"; 156 #endif 157 gateport = NULL; 158 cp = getenv("FTPSERVERPORT"); 159 if (cp != NULL) 160 gateport = cp; 161 else 162 gateport = "ftpgate"; 163 doglob = 1; 164 interactive = 1; 165 autologin = 1; 166 passivemode = 1; 167 activefallback = 1; 168 preserve = 1; 169 verbose = 0; 170 progress = 0; 171 gatemode = 0; 172 data = -1; 173 outfile = NULL; 174 restartautofetch = 0; 175 #ifndef NO_EDITCOMPLETE 176 editing = 0; 177 el = NULL; 178 hist = NULL; 179 #endif 180 bytes = 0; 181 mark = HASHBYTES; 182 rate_get = 0; 183 rate_get_incr = DEFAULTINCR; 184 rate_put = 0; 185 rate_put_incr = DEFAULTINCR; 186 #ifdef INET6 187 epsv4 = 1; 188 epsv6 = 1; 189 #else 190 epsv4 = 0; 191 epsv6 = 0; 192 #endif 193 epsv4bad = 0; 194 epsv6bad = 0; 195 src_addr = NULL; 196 upload_path = NULL; 197 isupload = 0; 198 reply_callback = NULL; 199 #ifdef INET6 200 family = AF_UNSPEC; 201 #else 202 family = AF_INET; /* force AF_INET if no INET6 support */ 203 #endif 204 205 netrc[0] = '\0'; 206 cp = getenv("NETRC"); 207 if (cp != NULL && strlcpy(netrc, cp, sizeof(netrc)) >= sizeof(netrc)) 208 errx(1, "$NETRC `%s': %s", cp, strerror(ENAMETOOLONG)); 209 210 marg_sl = ftp_sl_init(); 211 if ((tmpdir = getenv("TMPDIR")) == NULL) 212 tmpdir = _PATH_TMP; 213 214 /* Set default operation mode based on FTPMODE environment variable */ 215 if ((cp = getenv("FTPMODE")) != NULL) { 216 if (strcasecmp(cp, "passive") == 0) { 217 passivemode = 1; 218 activefallback = 0; 219 } else if (strcasecmp(cp, "active") == 0) { 220 passivemode = 0; 221 activefallback = 0; 222 } else if (strcasecmp(cp, "gate") == 0) { 223 gatemode = 1; 224 } else if (strcasecmp(cp, "auto") == 0) { 225 passivemode = 1; 226 activefallback = 1; 227 } else 228 warnx("Unknown $FTPMODE `%s'; using defaults", cp); 229 } 230 231 if (strcmp(getprogname(), "pftp") == 0) { 232 passivemode = 1; 233 activefallback = 0; 234 } else if (strcmp(getprogname(), "gate-ftp") == 0) 235 gatemode = 1; 236 237 gateserver = getenv("FTPSERVER"); 238 if (gateserver == NULL || *gateserver == '\0') 239 gateserver = GATE_SERVER; 240 if (gatemode) { 241 if (*gateserver == '\0') { 242 warnx( 243 "Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp"); 244 gatemode = 0; 245 } 246 } 247 248 cp = getenv("TERM"); 249 if (cp == NULL || strcmp(cp, "dumb") == 0) 250 dumbterm = 1; 251 else 252 dumbterm = 0; 253 fromatty = isatty(fileno(stdin)); 254 ttyout = stdout; 255 if (isatty(fileno(ttyout))) { 256 verbose = 1; /* verbose if to a tty */ 257 if (! dumbterm) { 258 #ifndef NO_EDITCOMPLETE 259 if (fromatty) /* editing mode on if tty is usable */ 260 editing = 1; 261 #endif 262 #ifndef NO_PROGRESS 263 if (foregroundproc()) 264 progress = 1; /* progress bar on if fg */ 265 #endif 266 } 267 } 268 269 while ((ch = getopt(argc, argv, "46AadefginN:o:pP:q:r:Rs:tT:u:vV")) != -1) { 270 switch (ch) { 271 case '4': 272 family = AF_INET; 273 break; 274 275 case '6': 276 #ifdef INET6 277 family = AF_INET6; 278 #else 279 warnx("INET6 support is not available; ignoring -6"); 280 #endif 281 break; 282 283 case 'A': 284 activefallback = 0; 285 passivemode = 0; 286 break; 287 288 case 'a': 289 anonftp = 1; 290 break; 291 292 case 'd': 293 options |= SO_DEBUG; 294 ftp_debug++; 295 break; 296 297 case 'e': 298 #ifndef NO_EDITCOMPLETE 299 editing = 0; 300 #endif 301 break; 302 303 case 'f': 304 flushcache = 1; 305 break; 306 307 case 'g': 308 doglob = 0; 309 break; 310 311 case 'i': 312 interactive = 0; 313 break; 314 315 case 'n': 316 autologin = 0; 317 break; 318 319 case 'N': 320 if (strlcpy(netrc, optarg, sizeof(netrc)) 321 >= sizeof(netrc)) 322 errx(1, "%s: %s", optarg, 323 strerror(ENAMETOOLONG)); 324 break; 325 326 case 'o': 327 outfile = optarg; 328 if (strcmp(outfile, "-") == 0) 329 ttyout = stderr; 330 break; 331 332 case 'p': 333 passivemode = 1; 334 activefallback = 0; 335 break; 336 337 case 'P': 338 ftpport = optarg; 339 break; 340 341 case 'q': 342 quit_time = strtol(optarg, &ep, 10); 343 if (quit_time < 1 || *ep != '\0') 344 errx(1, "Bad quit value: %s", optarg); 345 break; 346 347 case 'r': 348 retry_connect = strtol(optarg, &ep, 10); 349 if (retry_connect < 1 || *ep != '\0') 350 errx(1, "Bad retry value: %s", optarg); 351 break; 352 353 case 'R': 354 restartautofetch = 1; 355 break; 356 357 case 's': 358 src_addr = optarg; 359 break; 360 361 case 't': 362 trace = 1; 363 break; 364 365 case 'T': 366 { 367 int targc; 368 char *targv[6], *oac; 369 char cmdbuf[MAX_C_NAME]; 370 371 /* look for `dir,max[,incr]' */ 372 targc = 0; 373 (void)strlcpy(cmdbuf, "-T", sizeof(cmdbuf)); 374 targv[targc++] = cmdbuf; 375 oac = ftp_strdup(optarg); 376 377 while ((cp = strsep(&oac, ",")) != NULL) { 378 if (*cp == '\0') { 379 warnx("Bad throttle value `%s'", 380 optarg); 381 usage(); 382 /* NOTREACHED */ 383 } 384 targv[targc++] = cp; 385 if (targc >= 5) 386 break; 387 } 388 if (parserate(targc, targv, 1) == -1) 389 usage(); 390 free(oac); 391 break; 392 } 393 394 case 'u': 395 { 396 isupload = 1; 397 interactive = 0; 398 upload_path = ftp_strdup(optarg); 399 400 break; 401 } 402 403 case 'v': 404 progress = verbose = 1; 405 break; 406 407 case 'V': 408 progress = verbose = 0; 409 break; 410 411 default: 412 usage(); 413 } 414 } 415 /* set line buffering on ttyout */ 416 setvbuf(ttyout, NULL, _IOLBF, 0); 417 argc -= optind; 418 argv += optind; 419 420 cpend = 0; /* no pending replies */ 421 proxy = 0; /* proxy not active */ 422 crflag = 1; /* strip c.r. on ascii gets */ 423 sendport = -1; /* not using ports */ 424 425 if (src_addr != NULL) { 426 struct addrinfo hints; 427 int error; 428 429 memset(&hints, 0, sizeof(hints)); 430 hints.ai_family = family; 431 hints.ai_socktype = SOCK_STREAM; 432 hints.ai_flags = AI_PASSIVE; 433 error = getaddrinfo(src_addr, NULL, &hints, &bindai); 434 if (error) { 435 errx(1, "Can't lookup `%s': %s", src_addr, 436 (error == EAI_SYSTEM) ? strerror(errno) 437 : gai_strerror(error)); 438 } 439 } 440 441 /* 442 * Cache the user name and home directory. 443 */ 444 localhome = NULL; 445 localname = NULL; 446 anonuser = "anonymous"; 447 cp = getenv("HOME"); 448 if (! EMPTYSTRING(cp)) 449 localhome = ftp_strdup(cp); 450 pw = NULL; 451 cp = getlogin(); 452 if (cp != NULL) 453 pw = getpwnam(cp); 454 if (pw == NULL) 455 pw = getpwuid(getuid()); 456 if (pw != NULL) { 457 if (localhome == NULL && !EMPTYSTRING(pw->pw_dir)) 458 localhome = ftp_strdup(pw->pw_dir); 459 localname = ftp_strdup(pw->pw_name); 460 anonuser = localname; 461 } 462 if (netrc[0] == '\0' && localhome != NULL) { 463 if (strlcpy(netrc, localhome, sizeof(netrc)) >= sizeof(netrc) || 464 strlcat(netrc, "/.netrc", sizeof(netrc)) >= sizeof(netrc)) { 465 warnx("%s/.netrc: %s", localhome, 466 strerror(ENAMETOOLONG)); 467 netrc[0] = '\0'; 468 } 469 } 470 if (localhome == NULL) 471 localhome = ftp_strdup("/"); 472 473 /* 474 * Every anonymous FTP server I've encountered will accept the 475 * string "username@", and will append the hostname itself. We 476 * do this by default since many servers are picky about not 477 * having a FQDN in the anonymous password. 478 * - thorpej (at) NetBSD.org 479 */ 480 len = strlen(anonuser) + 2; 481 anonpass = ftp_malloc(len); 482 (void)strlcpy(anonpass, anonuser, len); 483 (void)strlcat(anonpass, "@", len); 484 485 /* 486 * set all the defaults for options defined in 487 * struct option optiontab[] declared in cmdtab.c 488 */ 489 setupoption("anonpass", getenv("FTPANONPASS"), anonpass); 490 setupoption("ftp_proxy", getenv(FTP_PROXY), ""); 491 setupoption("http_proxy", getenv(HTTP_PROXY), ""); 492 setupoption("https_proxy", getenv(HTTPS_PROXY), ""); 493 setupoption("no_proxy", getenv(NO_PROXY), ""); 494 setupoption("pager", getenv("PAGER"), DEFAULTPAGER); 495 setupoption("prompt", getenv("FTPPROMPT"), DEFAULTPROMPT); 496 setupoption("rprompt", getenv("FTPRPROMPT"), DEFAULTRPROMPT); 497 498 free(anonpass); 499 500 setttywidth(0); 501 #ifdef SIGINFO 502 (void)xsignal(SIGINFO, psummary); 503 #endif 504 (void)xsignal(SIGQUIT, psummary); 505 (void)xsignal(SIGUSR1, crankrate); 506 (void)xsignal(SIGUSR2, crankrate); 507 (void)xsignal(SIGWINCH, setttywidth); 508 509 if (argc > 0) { 510 if (isupload) { 511 rval = auto_put(argc, argv, upload_path); 512 sigint_or_rval_exit: 513 if (sigint_raised) { 514 (void)xsignal(SIGINT, SIG_DFL); 515 raise(SIGINT); 516 } 517 exit(rval); 518 } else if (strchr(argv[0], ':') != NULL 519 && ! isipv6addr(argv[0])) { 520 rval = auto_fetch(argc, argv); 521 if (rval >= 0) /* -1 == connected and cd-ed */ 522 goto sigint_or_rval_exit; 523 } else { 524 char *xargv[4], *uuser, *host; 525 char cmdbuf[MAXPATHLEN]; 526 527 if ((rval = sigsetjmp(toplevel, 1))) 528 goto sigint_or_rval_exit; 529 (void)xsignal(SIGINT, intr); 530 (void)xsignal(SIGPIPE, lostpeer); 531 uuser = NULL; 532 host = argv[0]; 533 cp = strchr(host, '@'); 534 if (cp) { 535 *cp = '\0'; 536 uuser = host; 537 host = cp + 1; 538 } 539 (void)strlcpy(cmdbuf, getprogname(), sizeof(cmdbuf)); 540 xargv[0] = cmdbuf; 541 xargv[1] = host; 542 xargv[2] = argv[1]; 543 xargv[3] = NULL; 544 do { 545 int oautologin; 546 547 oautologin = autologin; 548 if (uuser != NULL) { 549 anonftp = 0; 550 autologin = 0; 551 } 552 setpeer(argc+1, xargv); 553 autologin = oautologin; 554 if (connected == 1 && uuser != NULL) 555 (void)ftp_login(host, uuser, NULL); 556 if (!retry_connect) 557 break; 558 if (!connected) { 559 macnum = 0; 560 fprintf(ttyout, 561 "Retrying in %d seconds...\n", 562 retry_connect); 563 sleep(retry_connect); 564 } 565 } while (!connected); 566 retry_connect = 0; /* connected, stop hiding msgs */ 567 } 568 } 569 if (isupload) 570 usage(); 571 572 #ifndef NO_EDITCOMPLETE 573 controlediting(); 574 #endif /* !NO_EDITCOMPLETE */ 575 576 (void)sigsetjmp(toplevel, 1); 577 (void)xsignal(SIGINT, intr); 578 (void)xsignal(SIGPIPE, lostpeer); 579 for (;;) 580 cmdscanner(); 581 } 582 583 /* 584 * Generate a prompt 585 */ 586 char * 587 prompt(void) 588 { 589 static char **promptopt; 590 static char buf[MAXPATHLEN]; 591 592 if (promptopt == NULL) { 593 struct option *o; 594 595 o = getoption("prompt"); 596 if (o == NULL) 597 errx(1, "prompt: no such option `prompt'"); 598 promptopt = &(o->value); 599 } 600 formatbuf(buf, sizeof(buf), *promptopt ? *promptopt : DEFAULTPROMPT); 601 return (buf); 602 } 603 604 /* 605 * Generate an rprompt 606 */ 607 char * 608 rprompt(void) 609 { 610 static char **rpromptopt; 611 static char buf[MAXPATHLEN]; 612 613 if (rpromptopt == NULL) { 614 struct option *o; 615 616 o = getoption("rprompt"); 617 if (o == NULL) 618 errx(1, "rprompt: no such option `rprompt'"); 619 rpromptopt = &(o->value); 620 } 621 formatbuf(buf, sizeof(buf), *rpromptopt ? *rpromptopt : DEFAULTRPROMPT); 622 return (buf); 623 } 624 625 /* 626 * Command parser. 627 */ 628 void 629 cmdscanner(void) 630 { 631 struct cmd *c; 632 char *p; 633 #ifndef NO_EDITCOMPLETE 634 int ch; 635 size_t num; 636 #endif 637 int len; 638 char cmdbuf[MAX_C_NAME]; 639 640 for (;;) { 641 #ifndef NO_EDITCOMPLETE 642 if (!editing) { 643 #endif /* !NO_EDITCOMPLETE */ 644 if (fromatty) { 645 fputs(prompt(), ttyout); 646 p = rprompt(); 647 if (*p) 648 fprintf(ttyout, "%s ", p); 649 } 650 (void)fflush(ttyout); 651 len = get_line(stdin, line, sizeof(line), NULL); 652 switch (len) { 653 case -1: /* EOF */ 654 case -2: /* error */ 655 if (fromatty) 656 putc('\n', ttyout); 657 quit(0, NULL); 658 /* NOTREACHED */ 659 case -3: /* too long; try again */ 660 fputs("Sorry, input line is too long.\n", 661 ttyout); 662 continue; 663 case 0: /* empty; try again */ 664 continue; 665 default: /* all ok */ 666 break; 667 } 668 #ifndef NO_EDITCOMPLETE 669 } else { 670 const char *buf; 671 HistEvent ev; 672 cursor_pos = NULL; 673 674 buf = el_gets(el, &ch); 675 num = ch; 676 if (buf == NULL || num == 0) { 677 if (fromatty) 678 putc('\n', ttyout); 679 quit(0, NULL); 680 } 681 if (num >= sizeof(line)) { 682 fputs("Sorry, input line is too long.\n", 683 ttyout); 684 break; 685 } 686 memcpy(line, buf, num); 687 if (line[--num] == '\n') { 688 line[num] = '\0'; 689 if (num == 0) 690 break; 691 } 692 history(hist, &ev, H_ENTER, buf); 693 } 694 #endif /* !NO_EDITCOMPLETE */ 695 696 makeargv(); 697 if (margc == 0) 698 continue; 699 c = getcmd(margv[0]); 700 if (c == (struct cmd *)-1) { 701 fputs("?Ambiguous command.\n", ttyout); 702 continue; 703 } 704 if (c == NULL) { 705 #if !defined(NO_EDITCOMPLETE) 706 /* 707 * attempt to el_parse() unknown commands. 708 * any command containing a ':' would be parsed 709 * as "[prog:]cmd ...", and will result in a 710 * false positive if prog != "ftp", so treat 711 * such commands as invalid. 712 */ 713 if (strchr(margv[0], ':') != NULL || 714 !editing || 715 el_parse(el, margc, (void *)margv) != 0) 716 #endif /* !NO_EDITCOMPLETE */ 717 fputs("?Invalid command.\n", ttyout); 718 continue; 719 } 720 if (c->c_conn && !connected) { 721 fputs("Not connected.\n", ttyout); 722 continue; 723 } 724 confirmrest = 0; 725 (void)strlcpy(cmdbuf, c->c_name, sizeof(cmdbuf)); 726 margv[0] = cmdbuf; 727 (*c->c_handler)(margc, margv); 728 if (bell && c->c_bell) 729 (void)putc('\007', ttyout); 730 if (c->c_handler != help) 731 break; 732 } 733 (void)xsignal(SIGINT, intr); 734 (void)xsignal(SIGPIPE, lostpeer); 735 } 736 737 struct cmd * 738 getcmd(const char *name) 739 { 740 const char *p, *q; 741 struct cmd *c, *found; 742 int nmatches, longest; 743 744 if (name == NULL) 745 return (0); 746 747 longest = 0; 748 nmatches = 0; 749 found = 0; 750 for (c = cmdtab; (p = c->c_name) != NULL; c++) { 751 for (q = name; *q == *p++; q++) 752 if (*q == 0) /* exact match? */ 753 return (c); 754 if (!*q) { /* the name was a prefix */ 755 if (q - name > longest) { 756 longest = q - name; 757 nmatches = 1; 758 found = c; 759 } else if (q - name == longest) 760 nmatches++; 761 } 762 } 763 if (nmatches > 1) 764 return ((struct cmd *)-1); 765 return (found); 766 } 767 768 /* 769 * Slice a string up into argc/argv. 770 */ 771 772 int slrflag; 773 774 void 775 makeargv(void) 776 { 777 char *argp; 778 779 stringbase = line; /* scan from first of buffer */ 780 argbase = argbuf; /* store from first of buffer */ 781 slrflag = 0; 782 marg_sl->sl_cur = 0; /* reset to start of marg_sl */ 783 for (margc = 0; ; margc++) { 784 argp = slurpstring(); 785 ftp_sl_add(marg_sl, argp); 786 if (argp == NULL) 787 break; 788 } 789 #ifndef NO_EDITCOMPLETE 790 if (cursor_pos == line) { 791 cursor_argc = 0; 792 cursor_argo = 0; 793 } else if (cursor_pos != NULL) { 794 cursor_argc = margc; 795 cursor_argo = strlen(margv[margc-1]); 796 } 797 #endif /* !NO_EDITCOMPLETE */ 798 } 799 800 #ifdef NO_EDITCOMPLETE 801 #define INC_CHKCURSOR(x) (x)++ 802 #else /* !NO_EDITCOMPLETE */ 803 #define INC_CHKCURSOR(x) { (x)++ ; \ 804 if (x == cursor_pos) { \ 805 cursor_argc = margc; \ 806 cursor_argo = ap-argbase; \ 807 cursor_pos = NULL; \ 808 } } 809 810 #endif /* !NO_EDITCOMPLETE */ 811 812 /* 813 * Parse string into argbuf; 814 * implemented with FSM to 815 * handle quoting and strings 816 */ 817 char * 818 slurpstring(void) 819 { 820 static char bangstr[2] = { '!', '\0' }; 821 static char dollarstr[2] = { '$', '\0' }; 822 int got_one = 0; 823 char *sb = stringbase; 824 char *ap = argbase; 825 char *tmp = argbase; /* will return this if token found */ 826 827 if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */ 828 switch (slrflag) { /* and $ as token for macro invoke */ 829 case 0: 830 slrflag++; 831 INC_CHKCURSOR(stringbase); 832 return ((*sb == '!') ? bangstr : dollarstr); 833 /* NOTREACHED */ 834 case 1: 835 slrflag++; 836 altarg = stringbase; 837 break; 838 default: 839 break; 840 } 841 } 842 843 S0: 844 switch (*sb) { 845 846 case '\0': 847 goto OUT; 848 849 case ' ': 850 case '\t': 851 INC_CHKCURSOR(sb); 852 goto S0; 853 854 default: 855 switch (slrflag) { 856 case 0: 857 slrflag++; 858 break; 859 case 1: 860 slrflag++; 861 altarg = sb; 862 break; 863 default: 864 break; 865 } 866 goto S1; 867 } 868 869 S1: 870 switch (*sb) { 871 872 case ' ': 873 case '\t': 874 case '\0': 875 goto OUT; /* end of token */ 876 877 case '\\': 878 INC_CHKCURSOR(sb); 879 goto S2; /* slurp next character */ 880 881 case '"': 882 INC_CHKCURSOR(sb); 883 goto S3; /* slurp quoted string */ 884 885 default: 886 *ap = *sb; /* add character to token */ 887 ap++; 888 INC_CHKCURSOR(sb); 889 got_one = 1; 890 goto S1; 891 } 892 893 S2: 894 switch (*sb) { 895 896 case '\0': 897 goto OUT; 898 899 default: 900 *ap = *sb; 901 ap++; 902 INC_CHKCURSOR(sb); 903 got_one = 1; 904 goto S1; 905 } 906 907 S3: 908 switch (*sb) { 909 910 case '\0': 911 goto OUT; 912 913 case '"': 914 INC_CHKCURSOR(sb); 915 goto S1; 916 917 default: 918 *ap = *sb; 919 ap++; 920 INC_CHKCURSOR(sb); 921 got_one = 1; 922 goto S3; 923 } 924 925 OUT: 926 if (got_one) 927 *ap++ = '\0'; 928 argbase = ap; /* update storage pointer */ 929 stringbase = sb; /* update scan pointer */ 930 if (got_one) { 931 return (tmp); 932 } 933 switch (slrflag) { 934 case 0: 935 slrflag++; 936 break; 937 case 1: 938 slrflag++; 939 altarg = NULL; 940 break; 941 default: 942 break; 943 } 944 return (NULL); 945 } 946 947 /* 948 * Help/usage command. 949 * Call each command handler with argc == 0 and argv[0] == name. 950 */ 951 void 952 help(int argc, char *argv[]) 953 { 954 struct cmd *c; 955 char *nargv[1], *cmd; 956 const char *p; 957 int isusage; 958 959 cmd = argv[0]; 960 isusage = (strcmp(cmd, "usage") == 0); 961 if (argc == 0 || (isusage && argc == 1)) { 962 UPRINTF("usage: %s [command [...]]\n", cmd); 963 return; 964 } 965 if (argc == 1) { 966 StringList *buf; 967 968 buf = ftp_sl_init(); 969 fprintf(ttyout, 970 "%sommands may be abbreviated. Commands are:\n\n", 971 proxy ? "Proxy c" : "C"); 972 for (c = cmdtab; (p = c->c_name) != NULL; c++) 973 if (!proxy || c->c_proxy) 974 ftp_sl_add(buf, ftp_strdup(p)); 975 list_vertical(buf); 976 sl_free(buf, 1); 977 return; 978 } 979 980 #define HELPINDENT ((int) sizeof("disconnect")) 981 982 while (--argc > 0) { 983 char *arg; 984 char cmdbuf[MAX_C_NAME]; 985 986 arg = *++argv; 987 c = getcmd(arg); 988 if (c == (struct cmd *)-1) 989 fprintf(ttyout, "?Ambiguous %s command `%s'\n", 990 cmd, arg); 991 else if (c == NULL) 992 fprintf(ttyout, "?Invalid %s command `%s'\n", 993 cmd, arg); 994 else { 995 if (isusage) { 996 (void)strlcpy(cmdbuf, c->c_name, sizeof(cmdbuf)); 997 nargv[0] = cmdbuf; 998 (*c->c_handler)(0, nargv); 999 } else 1000 fprintf(ttyout, "%-*s\t%s\n", HELPINDENT, 1001 c->c_name, c->c_help); 1002 } 1003 } 1004 } 1005 1006 struct option * 1007 getoption(const char *name) 1008 { 1009 const char *p; 1010 struct option *c; 1011 1012 if (name == NULL) 1013 return (NULL); 1014 for (c = optiontab; (p = c->name) != NULL; c++) { 1015 if (strcasecmp(p, name) == 0) 1016 return (c); 1017 } 1018 return (NULL); 1019 } 1020 1021 char * 1022 getoptionvalue(const char *name) 1023 { 1024 struct option *c; 1025 1026 if (name == NULL) 1027 errx(1, "getoptionvalue: invoked with NULL name"); 1028 c = getoption(name); 1029 if (c != NULL) 1030 return (c->value); 1031 errx(1, "getoptionvalue: invoked with unknown option `%s'", name); 1032 /* NOTREACHED */ 1033 } 1034 1035 static void 1036 setupoption(const char *name, const char *value, const char *defaultvalue) 1037 { 1038 set_option(name, value ? value : defaultvalue, 0); 1039 } 1040 1041 void 1042 usage(void) 1043 { 1044 const char *progname = getprogname(); 1045 1046 (void)fprintf(stderr, 1047 "usage: %s [-46AadefginpRtVv] [-N netrc] [-o outfile] [-P port] [-q quittime]\n" 1048 " [-r retry] [-s srcaddr] [-T dir,max[,inc]]\n" 1049 " [[user@]host [port]] [host:path[/]] [file:///file]\n" 1050 " [ftp://[user[:pass]@]host[:port]/path[/]]\n" 1051 " [http://[user[:pass]@]host[:port]/path] [...]\n" 1052 #ifdef WITH_SSL 1053 " [https://[user[:pass]@]host[:port]/path] [...]\n" 1054 #endif 1055 " %s -u URL file [...]\n", progname, progname); 1056 exit(1); 1057 } 1058
Indexes created Mon Oct 20 01:09:56 GMT 2025