main.c revision 1.103
1 /* $NetBSD: main.c,v 1.103 2007/04/12 04:25:00 lukem 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 __COPYRIGHT("@(#) Copyright (c) 1985, 1989, 1993, 1994\n\ 100 The Regents of the University of California. All rights reserved.\n"); 101 #endif /* not lint */ 102 103 #ifndef lint 104 #if 0 105 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94"; 106 #else 107 __RCSID("$NetBSD: main.c,v 1.103 2007/04/12 04:25:00 lukem Exp $"); 108 #endif 109 #endif /* not lint */ 110 111 /* 112 * FTP User Program -- Command Interface. 113 */ 114 #include <sys/types.h> 115 #include <sys/socket.h> 116 117 #include <err.h> 118 #include <errno.h> 119 #include <netdb.h> 120 #include <paths.h> 121 #include <pwd.h> 122 #include <signal.h> 123 #include <stdio.h> 124 #include <stdlib.h> 125 #include <string.h> 126 #include <unistd.h> 127 #include <locale.h> 128 129 #define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */ 130 #include "ftp_var.h" 131 132 #define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */ 133 #define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */ 134 #define NO_PROXY "no_proxy" /* env var with list of non-proxied 135 * hosts, comma or space separated */ 136 137 static void setupoption(char *, char *, char *); 138 int main(int, char *[]); 139 140 int 141 main(int volatile argc, char **volatile argv) 142 { 143 int ch, rval; 144 struct passwd *pw; 145 char *cp, *ep, *anonuser, *anonpass, *upload_path; 146 int dumbterm, s, isupload; 147 size_t len; 148 socklen_t slen; 149 150 setlocale(LC_ALL, ""); 151 setprogname(argv[0]); 152 153 sigint_raised = 0; 154 155 ftpport = "ftp"; 156 httpport = "http"; 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 #else 189 epsv4 = 0; 190 #endif 191 epsv4bad = 0; 192 upload_path = NULL; 193 isupload = 0; 194 reply_callback = NULL; 195 family = AF_UNSPEC; 196 197 netrc[0] = '\0'; 198 cp = getenv("NETRC"); 199 if (cp != NULL && strlcpy(netrc, cp, sizeof(netrc)) >= sizeof(netrc)) 200 errx(1, "$NETRC `%s': %s", cp, strerror(ENAMETOOLONG)); 201 202 /* 203 * Get the default socket buffer sizes if we don't already have them. 204 * It doesn't matter which socket we do this to, because on the first 205 * call no socket buffer sizes will have been modified, so we are 206 * guaranteed to get the system defaults. 207 */ 208 s = socket(AF_INET, SOCK_STREAM, 0); 209 if (s == -1) 210 err(1, "can't create socket"); 211 slen = sizeof(rcvbuf_size); 212 if (getsockopt(s, SOL_SOCKET, SO_RCVBUF, 213 (void *)&rcvbuf_size, &slen) == -1) 214 err(1, "unable to get default rcvbuf size"); 215 slen = sizeof(sndbuf_size); 216 if (getsockopt(s, SOL_SOCKET, SO_SNDBUF, 217 (void *)&sndbuf_size, &slen) == -1) 218 err(1, "unable to get default sndbuf size"); 219 (void)close(s); 220 /* sanity check returned buffer sizes */ 221 if (rcvbuf_size <= 0) 222 rcvbuf_size = 8 * 1024; 223 if (sndbuf_size <= 0) 224 sndbuf_size = 8 * 1024; 225 226 if (sndbuf_size > 8 * 1024 * 1024) 227 sndbuf_size = 8 * 1024 * 1024; 228 if (rcvbuf_size > 8 * 1024 * 1024) 229 rcvbuf_size = 8 * 1024 * 1024; 230 231 marg_sl = ftp_sl_init(); 232 if ((tmpdir = getenv("TMPDIR")) == NULL) 233 tmpdir = _PATH_TMP; 234 235 /* Set default operation mode based on FTPMODE environment variable */ 236 if ((cp = getenv("FTPMODE")) != NULL) { 237 if (strcasecmp(cp, "passive") == 0) { 238 passivemode = 1; 239 activefallback = 0; 240 } else if (strcasecmp(cp, "active") == 0) { 241 passivemode = 0; 242 activefallback = 0; 243 } else if (strcasecmp(cp, "gate") == 0) { 244 gatemode = 1; 245 } else if (strcasecmp(cp, "auto") == 0) { 246 passivemode = 1; 247 activefallback = 1; 248 } else 249 warnx("unknown $FTPMODE '%s'; using defaults", cp); 250 } 251 252 if (strcmp(getprogname(), "pftp") == 0) { 253 passivemode = 1; 254 activefallback = 0; 255 } else if (strcmp(getprogname(), "gate-ftp") == 0) 256 gatemode = 1; 257 258 gateserver = getenv("FTPSERVER"); 259 if (gateserver == NULL || *gateserver == '\0') 260 gateserver = GATE_SERVER; 261 if (gatemode) { 262 if (*gateserver == '\0') { 263 warnx( 264 "Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp"); 265 gatemode = 0; 266 } 267 } 268 269 cp = getenv("TERM"); 270 if (cp == NULL || strcmp(cp, "dumb") == 0) 271 dumbterm = 1; 272 else 273 dumbterm = 0; 274 fromatty = isatty(fileno(stdin)); 275 ttyout = stdout; 276 if (isatty(fileno(ttyout))) { 277 verbose = 1; /* verbose if to a tty */ 278 if (! dumbterm) { 279 #ifndef NO_EDITCOMPLETE 280 if (fromatty) /* editing mode on if tty is usable */ 281 editing = 1; 282 #endif 283 #ifndef NO_PROGRESS 284 if (foregroundproc()) 285 progress = 1; /* progress bar on if fg */ 286 #endif 287 } 288 } 289 290 while ((ch = getopt(argc, argv, "46AadefginN:o:pP:q:r:RtT:u:vV")) != -1) { 291 switch (ch) { 292 case '4': 293 family = AF_INET; 294 break; 295 296 case '6': 297 #ifdef INET6 298 family = AF_INET6; 299 #else 300 warnx("INET6 support is not available; ignoring -6"); 301 #endif 302 break; 303 304 case 'A': 305 activefallback = 0; 306 passivemode = 0; 307 break; 308 309 case 'a': 310 anonftp = 1; 311 break; 312 313 case 'd': 314 options |= SO_DEBUG; 315 ftp_debug++; 316 break; 317 318 case 'e': 319 #ifndef NO_EDITCOMPLETE 320 editing = 0; 321 #endif 322 break; 323 324 case 'f': 325 flushcache = 1; 326 break; 327 328 case 'g': 329 doglob = 0; 330 break; 331 332 case 'i': 333 interactive = 0; 334 break; 335 336 case 'n': 337 autologin = 0; 338 break; 339 340 case 'N': 341 if (strlcpy(netrc, optarg, sizeof(netrc)) 342 >= sizeof(netrc)) 343 errx(1, "%s: %s", optarg, 344 strerror(ENAMETOOLONG)); 345 break; 346 347 case 'o': 348 outfile = optarg; 349 if (strcmp(outfile, "-") == 0) 350 ttyout = stderr; 351 break; 352 353 case 'p': 354 passivemode = 1; 355 activefallback = 0; 356 break; 357 358 case 'P': 359 ftpport = optarg; 360 break; 361 362 case 'q': 363 quit_time = strtol(optarg, &ep, 10); 364 if (quit_time < 1 || *ep != '\0') 365 errx(1, "bad quit value: %s", optarg); 366 break; 367 368 case 'r': 369 retry_connect = strtol(optarg, &ep, 10); 370 if (retry_connect < 1 || *ep != '\0') 371 errx(1, "bad retry value: %s", optarg); 372 break; 373 374 case 'R': 375 restartautofetch = 1; 376 break; 377 378 case 't': 379 trace = 1; 380 break; 381 382 case 'T': 383 { 384 int targc; 385 char *targv[6], *oac; 386 387 /* look for `dir,max[,incr]' */ 388 targc = 0; 389 targv[targc++] = "-T"; 390 oac = ftp_strdup(optarg); 391 392 while ((cp = strsep(&oac, ",")) != NULL) { 393 if (*cp == '\0') { 394 warnx("bad throttle value: %s", optarg); 395 usage(); 396 /* NOTREACHED */ 397 } 398 targv[targc++] = cp; 399 if (targc >= 5) 400 break; 401 } 402 if (parserate(targc, targv, 1) == -1) 403 usage(); 404 free(oac); 405 break; 406 } 407 408 case 'u': 409 { 410 isupload = 1; 411 interactive = 0; 412 upload_path = ftp_strdup(optarg); 413 414 break; 415 } 416 417 case 'v': 418 progress = verbose = 1; 419 break; 420 421 case 'V': 422 progress = verbose = 0; 423 break; 424 425 default: 426 usage(); 427 } 428 } 429 /* set line buffering on ttyout */ 430 setvbuf(ttyout, NULL, _IOLBF, 0); 431 argc -= optind; 432 argv += optind; 433 434 cpend = 0; /* no pending replies */ 435 proxy = 0; /* proxy not active */ 436 crflag = 1; /* strip c.r. on ascii gets */ 437 sendport = -1; /* not using ports */ 438 439 /* 440 * Cache the user name and home directory. 441 */ 442 localhome = NULL; 443 localname = NULL; 444 anonuser = "anonymous"; 445 cp = getenv("HOME"); 446 if (! EMPTYSTRING(cp)) 447 localhome = ftp_strdup(cp); 448 pw = NULL; 449 cp = getlogin(); 450 if (cp != NULL) 451 pw = getpwnam(cp); 452 if (pw == NULL) 453 pw = getpwuid(getuid()); 454 if (pw != NULL) { 455 if (localhome == NULL && !EMPTYSTRING(pw->pw_dir)) 456 localhome = ftp_strdup(pw->pw_dir); 457 localname = ftp_strdup(pw->pw_name); 458 anonuser = localname; 459 } 460 if (netrc[0] == '\0' && localhome != NULL) { 461 if (strlcpy(netrc, localhome, sizeof(netrc)) >= sizeof(netrc) || 462 strlcat(netrc, "/.netrc", sizeof(netrc)) >= sizeof(netrc)) { 463 warnx("%s/.netrc: %s", localhome, 464 strerror(ENAMETOOLONG)); 465 netrc[0] = '\0'; 466 } 467 } 468 if (localhome == NULL) 469 localhome = ftp_strdup("/"); 470 471 /* 472 * Every anonymous FTP server I've encountered will accept the 473 * string "username@", and will append the hostname itself. We 474 * do this by default since many servers are picky about not 475 * having a FQDN in the anonymous password. 476 * - thorpej (at) NetBSD.org 477 */ 478 len = strlen(anonuser) + 2; 479 anonpass = ftp_malloc(len); 480 (void)strlcpy(anonpass, anonuser, len); 481 (void)strlcat(anonpass, "@", len); 482 483 /* 484 * set all the defaults for options defined in 485 * struct option optiontab[] declared in cmdtab.c 486 */ 487 setupoption("anonpass", getenv("FTPANONPASS"), anonpass); 488 setupoption("ftp_proxy", getenv(FTP_PROXY), ""); 489 setupoption("http_proxy", getenv(HTTP_PROXY), ""); 490 setupoption("no_proxy", getenv(NO_PROXY), ""); 491 setupoption("pager", getenv("PAGER"), DEFAULTPAGER); 492 setupoption("prompt", getenv("FTPPROMPT"), DEFAULTPROMPT); 493 setupoption("rprompt", getenv("FTPRPROMPT"), DEFAULTRPROMPT); 494 495 free(anonpass); 496 497 setttywidth(0); 498 #ifdef SIGINFO 499 (void)xsignal(SIGINFO, psummary); 500 #endif 501 (void)xsignal(SIGQUIT, psummary); 502 (void)xsignal(SIGUSR1, crankrate); 503 (void)xsignal(SIGUSR2, crankrate); 504 (void)xsignal(SIGWINCH, setttywidth); 505 506 if (argc > 0) { 507 if (isupload) { 508 rval = auto_put(argc, argv, upload_path); 509 sigint_or_rval_exit: 510 if (sigint_raised) { 511 (void)xsignal(SIGINT, SIG_DFL); 512 raise(SIGINT); 513 } 514 exit(rval); 515 } else if (strchr(argv[0], ':') != NULL 516 && ! isipv6addr(argv[0])) { 517 rval = auto_fetch(argc, argv); 518 if (rval >= 0) /* -1 == connected and cd-ed */ 519 goto sigint_or_rval_exit; 520 } else { 521 char *xargv[4], *user, *host; 522 523 if ((rval = sigsetjmp(toplevel, 1))) 524 goto sigint_or_rval_exit; 525 (void)xsignal(SIGINT, intr); 526 (void)xsignal(SIGPIPE, lostpeer); 527 user = NULL; 528 host = argv[0]; 529 cp = strchr(host, '@'); 530 if (cp) { 531 *cp = '\0'; 532 user = host; 533 host = cp + 1; 534 } 535 /* XXX discards const */ 536 xargv[0] = (char *)getprogname(); 537 xargv[1] = host; 538 xargv[2] = argv[1]; 539 xargv[3] = NULL; 540 do { 541 int oautologin; 542 543 oautologin = autologin; 544 if (user != NULL) { 545 anonftp = 0; 546 autologin = 0; 547 } 548 setpeer(argc+1, xargv); 549 autologin = oautologin; 550 if (connected == 1 && user != NULL) 551 (void)ftp_login(host, user, NULL); 552 if (!retry_connect) 553 break; 554 if (!connected) { 555 macnum = 0; 556 fprintf(ttyout, 557 "Retrying in %d seconds...\n", 558 retry_connect); 559 sleep(retry_connect); 560 } 561 } while (!connected); 562 retry_connect = 0; /* connected, stop hiding msgs */ 563 } 564 } 565 if (isupload) 566 usage(); 567 568 #ifndef NO_EDITCOMPLETE 569 controlediting(); 570 #endif /* !NO_EDITCOMPLETE */ 571 572 (void)sigsetjmp(toplevel, 1); 573 (void)xsignal(SIGINT, intr); 574 (void)xsignal(SIGPIPE, lostpeer); 575 for (;;) 576 cmdscanner(); 577 } 578 579 /* 580 * Generate a prompt 581 */ 582 char * 583 prompt(void) 584 { 585 static char **prompt; 586 static char buf[MAXPATHLEN]; 587 588 if (prompt == NULL) { 589 struct option *o; 590 591 o = getoption("prompt"); 592 if (o == NULL) 593 errx(1, "no such option `prompt'"); 594 prompt = &(o->value); 595 } 596 formatbuf(buf, sizeof(buf), *prompt ? *prompt : DEFAULTPROMPT); 597 return (buf); 598 } 599 600 /* 601 * Generate an rprompt 602 */ 603 char * 604 rprompt(void) 605 { 606 static char **rprompt; 607 static char buf[MAXPATHLEN]; 608 609 if (rprompt == NULL) { 610 struct option *o; 611 612 o = getoption("rprompt"); 613 if (o == NULL) 614 errx(1, "no such option `rprompt'"); 615 rprompt = &(o->value); 616 } 617 formatbuf(buf, sizeof(buf), *rprompt ? *rprompt : DEFAULTRPROMPT); 618 return (buf); 619 } 620 621 /* 622 * Command parser. 623 */ 624 void 625 cmdscanner(void) 626 { 627 struct cmd *c; 628 char *p; 629 #ifndef NO_EDITCOMPLETE 630 int ch; 631 #endif 632 size_t num; 633 634 for (;;) { 635 #ifndef NO_EDITCOMPLETE 636 if (!editing) { 637 #endif /* !NO_EDITCOMPLETE */ 638 if (fromatty) { 639 fputs(prompt(), ttyout); 640 p = rprompt(); 641 if (*p) 642 fprintf(ttyout, "%s ", p); 643 } 644 (void)fflush(ttyout); 645 num = getline(stdin, line, sizeof(line), NULL); 646 switch (num) { 647 case -1: /* EOF */ 648 case -2: /* error */ 649 if (fromatty) 650 putc('\n', ttyout); 651 quit(0, NULL); 652 /* NOTREACHED */ 653 case -3: /* too long; try again */ 654 fputs("Sorry, input line is too long.\n", 655 ttyout); 656 continue; 657 case 0: /* empty; try again */ 658 continue; 659 default: /* all ok */ 660 break; 661 } 662 #ifndef NO_EDITCOMPLETE 663 } else { 664 const char *buf; 665 HistEvent ev; 666 cursor_pos = NULL; 667 668 buf = el_gets(el, &ch); 669 num = ch; 670 if (buf == NULL || num == 0) { 671 if (fromatty) 672 putc('\n', ttyout); 673 quit(0, NULL); 674 } 675 if (num >= sizeof(line)) { 676 fputs("Sorry, input line is too long.\n", 677 ttyout); 678 break; 679 } 680 memcpy(line, buf, num); 681 if (line[--num] == '\n') { 682 line[num] = '\0'; 683 if (num == 0) 684 break; 685 } 686 history(hist, &ev, H_ENTER, buf); 687 } 688 #endif /* !NO_EDITCOMPLETE */ 689 690 makeargv(); 691 if (margc == 0) 692 continue; 693 c = getcmd(margv[0]); 694 if (c == (struct cmd *)-1) { 695 fputs("?Ambiguous command.\n", ttyout); 696 continue; 697 } 698 if (c == NULL) { 699 #if !defined(NO_EDITCOMPLETE) 700 /* 701 * attempt to el_parse() unknown commands. 702 * any command containing a ':' would be parsed 703 * as "[prog:]cmd ...", and will result in a 704 * false positive if prog != "ftp", so treat 705 * such commands as invalid. 706 */ 707 if (strchr(margv[0], ':') != NULL || 708 el_parse(el, margc, (const char **)margv) != 0) 709 #endif /* !NO_EDITCOMPLETE */ 710 fputs("?Invalid command.\n", ttyout); 711 continue; 712 } 713 if (c->c_conn && !connected) { 714 fputs("Not connected.\n", ttyout); 715 continue; 716 } 717 confirmrest = 0; 718 margv[0] = c->c_name; 719 (*c->c_handler)(margc, margv); 720 if (bell && c->c_bell) 721 (void)putc('\007', ttyout); 722 if (c->c_handler != help) 723 break; 724 } 725 (void)xsignal(SIGINT, intr); 726 (void)xsignal(SIGPIPE, lostpeer); 727 } 728 729 struct cmd * 730 getcmd(const char *name) 731 { 732 const char *p, *q; 733 struct cmd *c, *found; 734 int nmatches, longest; 735 736 if (name == NULL) 737 return (0); 738 739 longest = 0; 740 nmatches = 0; 741 found = 0; 742 for (c = cmdtab; (p = c->c_name) != NULL; c++) { 743 for (q = name; *q == *p++; q++) 744 if (*q == 0) /* exact match? */ 745 return (c); 746 if (!*q) { /* the name was a prefix */ 747 if (q - name > longest) { 748 longest = q - name; 749 nmatches = 1; 750 found = c; 751 } else if (q - name == longest) 752 nmatches++; 753 } 754 } 755 if (nmatches > 1) 756 return ((struct cmd *)-1); 757 return (found); 758 } 759 760 /* 761 * Slice a string up into argc/argv. 762 */ 763 764 int slrflag; 765 766 void 767 makeargv(void) 768 { 769 char *argp; 770 771 stringbase = line; /* scan from first of buffer */ 772 argbase = argbuf; /* store from first of buffer */ 773 slrflag = 0; 774 marg_sl->sl_cur = 0; /* reset to start of marg_sl */ 775 for (margc = 0; ; margc++) { 776 argp = slurpstring(); 777 ftp_sl_add(marg_sl, argp); 778 if (argp == NULL) 779 break; 780 } 781 #ifndef NO_EDITCOMPLETE 782 if (cursor_pos == line) { 783 cursor_argc = 0; 784 cursor_argo = 0; 785 } else if (cursor_pos != NULL) { 786 cursor_argc = margc; 787 cursor_argo = strlen(margv[margc-1]); 788 } 789 #endif /* !NO_EDITCOMPLETE */ 790 } 791 792 #ifdef NO_EDITCOMPLETE 793 #define INC_CHKCURSOR(x) (x)++ 794 #else /* !NO_EDITCOMPLETE */ 795 #define INC_CHKCURSOR(x) { (x)++ ; \ 796 if (x == cursor_pos) { \ 797 cursor_argc = margc; \ 798 cursor_argo = ap-argbase; \ 799 cursor_pos = NULL; \ 800 } } 801 802 #endif /* !NO_EDITCOMPLETE */ 803 804 /* 805 * Parse string into argbuf; 806 * implemented with FSM to 807 * handle quoting and strings 808 */ 809 char * 810 slurpstring(void) 811 { 812 int got_one = 0; 813 char *sb = stringbase; 814 char *ap = argbase; 815 char *tmp = argbase; /* will return this if token found */ 816 817 if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */ 818 switch (slrflag) { /* and $ as token for macro invoke */ 819 case 0: 820 slrflag++; 821 INC_CHKCURSOR(stringbase); 822 return ((*sb == '!') ? "!" : "$"); 823 /* NOTREACHED */ 824 case 1: 825 slrflag++; 826 altarg = stringbase; 827 break; 828 default: 829 break; 830 } 831 } 832 833 S0: 834 switch (*sb) { 835 836 case '\0': 837 goto OUT; 838 839 case ' ': 840 case '\t': 841 INC_CHKCURSOR(sb); 842 goto S0; 843 844 default: 845 switch (slrflag) { 846 case 0: 847 slrflag++; 848 break; 849 case 1: 850 slrflag++; 851 altarg = sb; 852 break; 853 default: 854 break; 855 } 856 goto S1; 857 } 858 859 S1: 860 switch (*sb) { 861 862 case ' ': 863 case '\t': 864 case '\0': 865 goto OUT; /* end of token */ 866 867 case '\\': 868 INC_CHKCURSOR(sb); 869 goto S2; /* slurp next character */ 870 871 case '"': 872 INC_CHKCURSOR(sb); 873 goto S3; /* slurp quoted string */ 874 875 default: 876 *ap = *sb; /* add character to token */ 877 ap++; 878 INC_CHKCURSOR(sb); 879 got_one = 1; 880 goto S1; 881 } 882 883 S2: 884 switch (*sb) { 885 886 case '\0': 887 goto OUT; 888 889 default: 890 *ap = *sb; 891 ap++; 892 INC_CHKCURSOR(sb); 893 got_one = 1; 894 goto S1; 895 } 896 897 S3: 898 switch (*sb) { 899 900 case '\0': 901 goto OUT; 902 903 case '"': 904 INC_CHKCURSOR(sb); 905 goto S1; 906 907 default: 908 *ap = *sb; 909 ap++; 910 INC_CHKCURSOR(sb); 911 got_one = 1; 912 goto S3; 913 } 914 915 OUT: 916 if (got_one) 917 *ap++ = '\0'; 918 argbase = ap; /* update storage pointer */ 919 stringbase = sb; /* update scan pointer */ 920 if (got_one) { 921 return (tmp); 922 } 923 switch (slrflag) { 924 case 0: 925 slrflag++; 926 break; 927 case 1: 928 slrflag++; 929 altarg = NULL; 930 break; 931 default: 932 break; 933 } 934 return (NULL); 935 } 936 937 /* 938 * Help/usage command. 939 * Call each command handler with argc == 0 and argv[0] == name. 940 */ 941 void 942 help(int argc, char *argv[]) 943 { 944 struct cmd *c; 945 char *nargv[1], *p, *cmd; 946 int isusage; 947 948 cmd = argv[0]; 949 isusage = (strcmp(cmd, "usage") == 0); 950 if (argc == 0 || (isusage && argc == 1)) { 951 UPRINTF("usage: %s [command [...]]\n", cmd); 952 return; 953 } 954 if (argc == 1) { 955 StringList *buf; 956 957 buf = ftp_sl_init(); 958 fprintf(ttyout, 959 "%sommands may be abbreviated. Commands are:\n\n", 960 proxy ? "Proxy c" : "C"); 961 for (c = cmdtab; (p = c->c_name) != NULL; c++) 962 if (!proxy || c->c_proxy) 963 ftp_sl_add(buf, p); 964 list_vertical(buf); 965 sl_free(buf, 0); 966 return; 967 } 968 969 #define HELPINDENT ((int) sizeof("disconnect")) 970 971 while (--argc > 0) { 972 char *arg; 973 974 arg = *++argv; 975 c = getcmd(arg); 976 if (c == (struct cmd *)-1) 977 fprintf(ttyout, "?Ambiguous %s command `%s'\n", 978 cmd, arg); 979 else if (c == NULL) 980 fprintf(ttyout, "?Invalid %s command `%s'\n", 981 cmd, arg); 982 else { 983 if (isusage) { 984 nargv[0] = c->c_name; 985 (*c->c_handler)(0, nargv); 986 } else 987 fprintf(ttyout, "%-*s\t%s\n", HELPINDENT, 988 c->c_name, c->c_help); 989 } 990 } 991 } 992 993 struct option * 994 getoption(const char *name) 995 { 996 const char *p; 997 struct option *c; 998 999 if (name == NULL) 1000 return (NULL); 1001 for (c = optiontab; (p = c->name) != NULL; c++) { 1002 if (strcasecmp(p, name) == 0) 1003 return (c); 1004 } 1005 return (NULL); 1006 } 1007 1008 char * 1009 getoptionvalue(const char *name) 1010 { 1011 struct option *c; 1012 1013 if (name == NULL) 1014 errx(1, "getoptionvalue() invoked with NULL name"); 1015 c = getoption(name); 1016 if (c != NULL) 1017 return (c->value); 1018 errx(1, "getoptionvalue() invoked with unknown option `%s'", name); 1019 /* NOTREACHED */ 1020 } 1021 1022 static void 1023 setupoption(char *name, char *value, char *defaultvalue) 1024 { 1025 char *nargv[3]; 1026 int overbose; 1027 1028 nargv[0] = "setupoption()"; 1029 nargv[1] = name; 1030 nargv[2] = (value ? value : defaultvalue); 1031 overbose = verbose; 1032 verbose = 0; 1033 setoption(3, nargv); 1034 verbose = overbose; 1035 } 1036 1037 void 1038 usage(void) 1039 { 1040 const char *progname = getprogname(); 1041 1042 (void)fprintf(stderr, 1043 "usage: %s [-46AadefginpRtvV] [-N netrc] [-o outfile] [-P port] [-q quittime]\n" 1044 " [-r retry] [-T dir,max[,inc][[user@]host [port]]] [host:path[/]]\n" 1045 " [file:///file] [ftp://[user[:pass]@]host[:port]/path[/]]\n" 1046 " [http://[user[:pass]@]host[:port]/path] [...]\n" 1047 " %s -u URL file [...]\n", progname, progname); 1048 exit(1); 1049 } 1050
Indexes created Thu Sep 25 08:09:54 GMT 2025