main.c revision 1.57
1 /* $NetBSD: main.c,v 1.57 1999/10/01 06:55:45 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1985, 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 /* 37 * Copyright (C) 1997 and 1998 WIDE Project. 38 * All rights reserved. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the project nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 */ 64 65 #include <sys/cdefs.h> 66 #ifndef lint 67 __COPYRIGHT("@(#) Copyright (c) 1985, 1989, 1993, 1994\n\ 68 The Regents of the University of California. All rights reserved.\n"); 69 #endif /* not lint */ 70 71 #ifndef lint 72 #if 0 73 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94"; 74 #else 75 __RCSID("$NetBSD: main.c,v 1.57 1999/10/01 06:55:45 lukem Exp $"); 76 #endif 77 #endif /* not lint */ 78 79 /* 80 * FTP User Program -- Command Interface. 81 */ 82 #include <sys/types.h> 83 #include <sys/socket.h> 84 85 #include <err.h> 86 #include <netdb.h> 87 #include <paths.h> 88 #include <pwd.h> 89 #include <stdio.h> 90 #include <stdlib.h> 91 #include <string.h> 92 #include <unistd.h> 93 94 #define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */ 95 #include "ftp_var.h" 96 97 #define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */ 98 #define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */ 99 #define NO_PROXY "no_proxy" /* env var with list of non-proxied 100 * hosts, comma or space separated */ 101 102 int main __P((int, char **)); 103 104 int 105 main(argc, argv) 106 int argc; 107 char *argv[]; 108 { 109 int ch, top, rval; 110 struct passwd *pw = NULL; 111 char *cp, *ep; 112 int dumbterm, s, len; 113 114 ftpport = "ftp"; 115 httpport = "http"; 116 ftpproxy = getenv(FTP_PROXY); 117 httpproxy = getenv(HTTP_PROXY); 118 no_proxy = getenv(NO_PROXY); 119 gateport = NULL; 120 cp = getenv("FTPSERVERPORT"); 121 if (cp != NULL) 122 gateport = cp; 123 else 124 gateport = "ftpgate"; 125 doglob = 1; 126 interactive = 1; 127 autologin = 1; 128 passivemode = 1; 129 activefallback = 1; 130 preserve = 1; 131 verbose = 0; 132 progress = 0; 133 gatemode = 0; 134 data = -1; 135 outfile = NULL; 136 restartautofetch = 0; 137 #ifndef NO_EDITCOMPLETE 138 editing = 0; 139 el = NULL; 140 hist = NULL; 141 #endif 142 mark = HASHBYTES; 143 rate_get = 0; 144 rate_get_incr = DEFAULTINCR; 145 rate_put = 0; 146 rate_put_incr = DEFAULTINCR; 147 #ifdef INET6 148 epsv4 = 1; 149 #else 150 epsv4 = 0; 151 #endif 152 153 /* 154 * Get the default socket buffer sizes if we don't already have them. 155 * It doesn't matter which socket we do this to, because on the first 156 * call no socket buffer sizes will have been modified, so we are 157 * guaranteed to get the system defaults. 158 */ 159 s = socket(AF_INET, SOCK_STREAM, 0); 160 if (s == -1) 161 err(1, "can't create socket"); 162 len = sizeof(rcvbuf_size); 163 if (getsockopt(s, SOL_SOCKET, SO_RCVBUF, (void *) &rcvbuf_size, &len) 164 < 0) 165 err(1, "unable to get default rcvbuf size"); 166 len = sizeof(sndbuf_size); 167 if (getsockopt(s, SOL_SOCKET, SO_SNDBUF, (void *) &sndbuf_size, &len) 168 < 0) 169 err(1, "unable to get default sndbuf size"); 170 (void)close(s); 171 /* sanity check returned buffer sizes */ 172 if (rcvbuf_size <= 0) 173 rcvbuf_size = 8192; 174 if (sndbuf_size <= 0) 175 sndbuf_size = 8192; 176 177 marg_sl = sl_init(); 178 if ((tmpdir = getenv("TMPDIR")) == NULL) 179 tmpdir = _PATH_TMP; 180 181 /* Set default operation mode based on FTPMODE environment variable */ 182 if ((cp = getenv("FTPMODE")) != NULL) { 183 if (strcmp(cp, "passive") == 0) { 184 passivemode = 1; 185 activefallback = 0; 186 } else if (strcmp(cp, "active") == 0) { 187 passivemode = 0; 188 activefallback = 0; 189 } else if (strcmp(cp, "gate") == 0) { 190 gatemode = 1; 191 } else if (strcmp(cp, "auto") == 0) { 192 passivemode = 1; 193 activefallback = 1; 194 } else 195 warnx("unknown $FTPMODE '%s'; using defaults", cp); 196 } 197 198 if (strcmp(__progname, "pftp") == 0) { 199 passivemode = 1; 200 activefallback = 0; 201 } else if (strcmp(__progname, "gate-ftp") == 0) 202 gatemode = 1; 203 204 gateserver = getenv("FTPSERVER"); 205 if (gateserver == NULL || *gateserver == '\0') 206 gateserver = GATE_SERVER; 207 if (gatemode) { 208 if (*gateserver == '\0') { 209 warnx( 210 "Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp"); 211 gatemode = 0; 212 } 213 } 214 215 cp = getenv("TERM"); 216 if (cp == NULL || strcmp(cp, "dumb") == 0) 217 dumbterm = 1; 218 else 219 dumbterm = 0; 220 fromatty = isatty(fileno(stdin)); 221 ttyout = stdout; 222 if (isatty(fileno(ttyout))) { 223 verbose = 1; /* verbose if to a tty */ 224 if (! dumbterm) { 225 #ifndef NO_EDITCOMPLETE 226 if (fromatty) /* editing mode on if tty is usable */ 227 editing = 1; 228 #endif 229 #ifndef NO_PROGRESS 230 if (foregroundproc()) 231 progress = 1; /* progress bar on if fg */ 232 #endif 233 } 234 } 235 236 while ((ch = getopt(argc, argv, "Aadefgino:pP:r:RtT:vV")) != -1) { 237 switch (ch) { 238 case 'A': 239 activefallback = 0; 240 passivemode = 0; 241 break; 242 243 case 'a': 244 anonftp = 1; 245 break; 246 247 case 'd': 248 options |= SO_DEBUG; 249 debug++; 250 break; 251 252 case 'e': 253 #ifndef NO_EDITCOMPLETE 254 editing = 0; 255 #endif 256 break; 257 258 case 'f': 259 flushcache = 1; 260 break; 261 262 case 'g': 263 doglob = 0; 264 break; 265 266 case 'i': 267 interactive = 0; 268 break; 269 270 case 'n': 271 autologin = 0; 272 break; 273 274 case 'o': 275 outfile = optarg; 276 if (strcmp(outfile, "-") == 0) 277 ttyout = stderr; 278 break; 279 280 case 'p': 281 passivemode = 1; 282 activefallback = 0; 283 break; 284 285 case 'P': 286 ftpport = optarg; 287 break; 288 289 case 'r': 290 retry_connect = strtol(optarg, &ep, 10); 291 if (retry_connect < 1 || *ep != '\0') 292 errx(1, "bad retry value: %s", optarg); 293 break; 294 295 case 'R': 296 restartautofetch = 1; 297 break; 298 299 case 't': 300 trace = 1; 301 break; 302 303 case 'T': 304 { 305 int targc; 306 char *targv[6], *oac; 307 308 /* look for `dir,max[,incr]' */ 309 targc = 0; 310 targv[targc++] = "-T"; 311 oac = xstrdup(optarg); 312 313 while ((cp = strsep(&oac, ",")) != NULL) { 314 if (*cp == '\0') { 315 warnx("bad throttle value: %s", optarg); 316 usage(); 317 /* NOTREACHED */ 318 } 319 targv[targc++] = cp; 320 if (targc >= 5) 321 break; 322 } 323 if (parserate(targc, targv, 1) == -1) 324 usage(); 325 free(oac); 326 break; 327 } 328 329 case 'v': 330 progress = verbose = 1; 331 break; 332 333 case 'V': 334 progress = verbose = 0; 335 break; 336 337 default: 338 usage(); 339 } 340 } 341 /* set line buffering on ttyout */ 342 setvbuf(ttyout, NULL, _IOLBF, 0); 343 argc -= optind; 344 argv += optind; 345 346 cpend = 0; /* no pending replies */ 347 proxy = 0; /* proxy not active */ 348 crflag = 1; /* strip c.r. on ascii gets */ 349 sendport = -1; /* not using ports */ 350 /* 351 * Set up the home directory in case we're globbing. 352 */ 353 cp = getlogin(); 354 if (cp != NULL) { 355 pw = getpwnam(cp); 356 } 357 if (pw == NULL) 358 pw = getpwuid(getuid()); 359 if (pw != NULL) 360 (void)strlcpy(home, pw->pw_dir, sizeof(home)); 361 else 362 (void)strlcpy(home, "/", sizeof(home)); 363 364 setttywidth(0); 365 (void)xsignal(SIGWINCH, setttywidth); 366 (void)xsignal(SIGUSR1, crankrate); 367 (void)xsignal(SIGUSR2, crankrate); 368 369 #ifdef __GNUC__ /* to shut up gcc warnings */ 370 (void)&argc; 371 (void)&argv; 372 #endif 373 374 if (argc > 0) { 375 if (strchr(argv[0], ':') != NULL && ! isipv6addr(argv[0])) { 376 rval = auto_fetch(argc, argv); 377 if (rval >= 0) /* -1 == connected and cd-ed */ 378 exit(rval); 379 } else { 380 char *xargv[5]; 381 382 if (setjmp(toplevel)) 383 exit(0); 384 (void)xsignal(SIGINT, (sig_t)intr); 385 (void)xsignal(SIGPIPE, (sig_t)lostpeer); 386 xargv[0] = __progname; 387 xargv[1] = argv[0]; 388 xargv[2] = argv[1]; 389 xargv[3] = argv[2]; 390 xargv[4] = NULL; 391 do { 392 setpeer(argc+1, xargv); 393 if (!retry_connect) 394 break; 395 if (!connected) { 396 macnum = 0; 397 fprintf(ttyout, 398 "Retrying in %d seconds...\n", 399 retry_connect); 400 sleep(retry_connect); 401 } 402 } while (!connected); 403 retry_connect = 0; /* connected, stop hiding msgs */ 404 } 405 } 406 #ifndef NO_EDITCOMPLETE 407 controlediting(); 408 #endif /* !NO_EDITCOMPLETE */ 409 top = setjmp(toplevel) == 0; 410 if (top) { 411 (void)xsignal(SIGINT, (sig_t)intr); 412 (void)xsignal(SIGPIPE, (sig_t)lostpeer); 413 } 414 for (;;) { 415 cmdscanner(top); 416 top = 1; 417 } 418 } 419 420 void 421 intr() 422 { 423 424 alarmtimer(0); 425 longjmp(toplevel, 1); 426 } 427 428 void 429 lostpeer() 430 { 431 432 alarmtimer(0); 433 if (connected) { 434 if (cout != NULL) { 435 (void)shutdown(fileno(cout), 1+1); 436 (void)fclose(cout); 437 cout = NULL; 438 } 439 if (data >= 0) { 440 (void)shutdown(data, 1+1); 441 (void)close(data); 442 data = -1; 443 } 444 connected = 0; 445 } 446 pswitch(1); 447 if (connected) { 448 if (cout != NULL) { 449 (void)shutdown(fileno(cout), 1+1); 450 (void)fclose(cout); 451 cout = NULL; 452 } 453 connected = 0; 454 } 455 proxflag = 0; 456 pswitch(0); 457 } 458 459 /* 460 * Generate a prompt 461 */ 462 char * 463 prompt() 464 { 465 return ("ftp> "); 466 } 467 468 /* 469 * Command parser. 470 */ 471 void 472 cmdscanner(top) 473 int top; 474 { 475 struct cmd *c; 476 int num; 477 478 if (!top 479 #ifndef NO_EDITCOMPLETE 480 && !editing 481 #endif /* !NO_EDITCOMPLETE */ 482 ) 483 (void)putc('\n', ttyout); 484 for (;;) { 485 #ifndef NO_EDITCOMPLETE 486 if (!editing) { 487 #endif /* !NO_EDITCOMPLETE */ 488 if (fromatty) { 489 fputs(prompt(), ttyout); 490 (void)fflush(ttyout); 491 } 492 if (fgets(line, sizeof(line), stdin) == NULL) 493 quit(0, 0); 494 num = strlen(line); 495 if (num == 0) 496 break; 497 if (line[--num] == '\n') { 498 if (num == 0) 499 break; 500 line[num] = '\0'; 501 } else if (num == sizeof(line) - 2) { 502 fputs("sorry, input line too long.\n", ttyout); 503 while ((num = getchar()) != '\n' && num != EOF) 504 /* void */; 505 break; 506 } /* else it was a line without a newline */ 507 #ifndef NO_EDITCOMPLETE 508 } else { 509 const char *buf; 510 HistEvent ev; 511 cursor_pos = NULL; 512 513 if ((buf = el_gets(el, &num)) == NULL || num == 0) 514 quit(0, 0); 515 if (buf[--num] == '\n') { 516 if (num == 0) 517 break; 518 } else if (num >= sizeof(line)) { 519 fputs("sorry, input line too long.\n", ttyout); 520 break; 521 } 522 memcpy(line, buf, num); 523 line[num] = '\0'; 524 history(hist, &ev, H_ENTER, buf); 525 } 526 #endif /* !NO_EDITCOMPLETE */ 527 528 makeargv(); 529 if (margc == 0) 530 continue; 531 c = getcmd(margv[0]); 532 if (c == (struct cmd *)-1) { 533 fputs("?Ambiguous command.\n", ttyout); 534 continue; 535 } 536 if (c == NULL) { 537 #if !defined(NO_EDITCOMPLETE) 538 /* 539 * attempt to el_parse() unknown commands. 540 * any command containing a ':' would be parsed 541 * as "[prog:]cmd ...", and will result in a 542 * false positive if prog != "ftp", so treat 543 * such commands as invalid. 544 */ 545 if (strchr(margv[0], ':') != NULL || 546 el_parse(el, margc, margv) != 0) 547 #endif /* !NO_EDITCOMPLETE */ 548 fputs("?Invalid command.\n", ttyout); 549 continue; 550 } 551 if (c->c_conn && !connected) { 552 fputs("Not connected.\n", ttyout); 553 continue; 554 } 555 confirmrest = 0; 556 (*c->c_handler)(margc, margv); 557 if (bell && c->c_bell) 558 (void)putc('\007', ttyout); 559 if (c->c_handler != help) 560 break; 561 } 562 (void)xsignal(SIGINT, (sig_t)intr); 563 (void)xsignal(SIGPIPE, (sig_t)lostpeer); 564 } 565 566 struct cmd * 567 getcmd(name) 568 const char *name; 569 { 570 const char *p, *q; 571 struct cmd *c, *found; 572 int nmatches, longest; 573 574 if (name == NULL) 575 return (0); 576 577 longest = 0; 578 nmatches = 0; 579 found = 0; 580 for (c = cmdtab; (p = c->c_name) != NULL; c++) { 581 for (q = name; *q == *p++; q++) 582 if (*q == 0) /* exact match? */ 583 return (c); 584 if (!*q) { /* the name was a prefix */ 585 if (q - name > longest) { 586 longest = q - name; 587 nmatches = 1; 588 found = c; 589 } else if (q - name == longest) 590 nmatches++; 591 } 592 } 593 if (nmatches > 1) 594 return ((struct cmd *)-1); 595 return (found); 596 } 597 598 /* 599 * Slice a string up into argc/argv. 600 */ 601 602 int slrflag; 603 604 void 605 makeargv() 606 { 607 char *argp; 608 609 stringbase = line; /* scan from first of buffer */ 610 argbase = argbuf; /* store from first of buffer */ 611 slrflag = 0; 612 marg_sl->sl_cur = 0; /* reset to start of marg_sl */ 613 for (margc = 0; ; margc++) { 614 argp = slurpstring(); 615 sl_add(marg_sl, argp); 616 if (argp == NULL) 617 break; 618 } 619 #ifndef NO_EDITCOMPLETE 620 if (cursor_pos == line) { 621 cursor_argc = 0; 622 cursor_argo = 0; 623 } else if (cursor_pos != NULL) { 624 cursor_argc = margc; 625 cursor_argo = strlen(margv[margc-1]); 626 } 627 #endif /* !NO_EDITCOMPLETE */ 628 } 629 630 #ifdef NO_EDITCOMPLETE 631 #define INC_CHKCURSOR(x) (x)++ 632 #else /* !NO_EDITCOMPLETE */ 633 #define INC_CHKCURSOR(x) { (x)++ ; \ 634 if (x == cursor_pos) { \ 635 cursor_argc = margc; \ 636 cursor_argo = ap-argbase; \ 637 cursor_pos = NULL; \ 638 } } 639 640 #endif /* !NO_EDITCOMPLETE */ 641 642 /* 643 * Parse string into argbuf; 644 * implemented with FSM to 645 * handle quoting and strings 646 */ 647 char * 648 slurpstring() 649 { 650 int got_one = 0; 651 char *sb = stringbase; 652 char *ap = argbase; 653 char *tmp = argbase; /* will return this if token found */ 654 655 if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */ 656 switch (slrflag) { /* and $ as token for macro invoke */ 657 case 0: 658 slrflag++; 659 INC_CHKCURSOR(stringbase); 660 return ((*sb == '!') ? "!" : "$"); 661 /* NOTREACHED */ 662 case 1: 663 slrflag++; 664 altarg = stringbase; 665 break; 666 default: 667 break; 668 } 669 } 670 671 S0: 672 switch (*sb) { 673 674 case '\0': 675 goto OUT; 676 677 case ' ': 678 case '\t': 679 INC_CHKCURSOR(sb); 680 goto S0; 681 682 default: 683 switch (slrflag) { 684 case 0: 685 slrflag++; 686 break; 687 case 1: 688 slrflag++; 689 altarg = sb; 690 break; 691 default: 692 break; 693 } 694 goto S1; 695 } 696 697 S1: 698 switch (*sb) { 699 700 case ' ': 701 case '\t': 702 case '\0': 703 goto OUT; /* end of token */ 704 705 case '\\': 706 INC_CHKCURSOR(sb); 707 goto S2; /* slurp next character */ 708 709 case '"': 710 INC_CHKCURSOR(sb); 711 goto S3; /* slurp quoted string */ 712 713 default: 714 *ap = *sb; /* add character to token */ 715 ap++; 716 INC_CHKCURSOR(sb); 717 got_one = 1; 718 goto S1; 719 } 720 721 S2: 722 switch (*sb) { 723 724 case '\0': 725 goto OUT; 726 727 default: 728 *ap = *sb; 729 ap++; 730 INC_CHKCURSOR(sb); 731 got_one = 1; 732 goto S1; 733 } 734 735 S3: 736 switch (*sb) { 737 738 case '\0': 739 goto OUT; 740 741 case '"': 742 INC_CHKCURSOR(sb); 743 goto S1; 744 745 default: 746 *ap = *sb; 747 ap++; 748 INC_CHKCURSOR(sb); 749 got_one = 1; 750 goto S3; 751 } 752 753 OUT: 754 if (got_one) 755 *ap++ = '\0'; 756 argbase = ap; /* update storage pointer */ 757 stringbase = sb; /* update scan pointer */ 758 if (got_one) { 759 return (tmp); 760 } 761 switch (slrflag) { 762 case 0: 763 slrflag++; 764 break; 765 case 1: 766 slrflag++; 767 altarg = NULL; 768 break; 769 default: 770 break; 771 } 772 return (NULL); 773 } 774 775 /* 776 * Help command. 777 * Call each command handler with argc == 0 and argv[0] == name. 778 */ 779 void 780 help(argc, argv) 781 int argc; 782 char *argv[]; 783 { 784 struct cmd *c; 785 786 if (argc == 1) { 787 StringList *buf; 788 789 buf = sl_init(); 790 fprintf(ttyout, 791 "%sommands may be abbreviated. Commands are:\n\n", 792 proxy ? "Proxy c" : "C"); 793 for (c = cmdtab; c < &cmdtab[NCMDS]; c++) 794 if (c->c_name && (!proxy || c->c_proxy)) 795 sl_add(buf, c->c_name); 796 list_vertical(buf); 797 sl_free(buf, 0); 798 return; 799 } 800 801 #define HELPINDENT ((int) sizeof("disconnect")) 802 803 while (--argc > 0) { 804 char *arg; 805 806 arg = *++argv; 807 c = getcmd(arg); 808 if (c == (struct cmd *)-1) 809 fprintf(ttyout, "?Ambiguous help command %s\n", arg); 810 else if (c == NULL) 811 fprintf(ttyout, "?Invalid help command %s\n", arg); 812 else 813 fprintf(ttyout, "%-*s\t%s\n", HELPINDENT, 814 c->c_name, c->c_help); 815 } 816 } 817 818 void 819 usage() 820 { 821 (void)fprintf(stderr, 822 "usage: %s [-AadefginpRtvV] [-r retry] [-o outfile] [-P port] [-T dir,max[,inc]\n" 823 " [host [port]] [file:///file] [ftp://[user[:pass]@]host[:port]/path[/]]\n" 824 " [http://[user[:pass]@]host[:port]/path] [host:path[/]]\n", __progname); 825 exit(1); 826 } 827
Indexes created Fri Sep 26 20:09:58 GMT 2025