Merge branch 'vendor/TEXINFO'
[dragonfly.git] / contrib / tnftp / main.c
CommitLineData
20e59a13 1/* $NetBSD: main.c,v 1.117 2009/07/13 19:05:41 roy Exp $ */
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2
3/*-
20e59a13 4 * Copyright (c) 1996-2009 The NetBSD Foundation, Inc.
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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.
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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
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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");
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95#endif /* not lint */
96
97#ifndef lint
98#if 0
99static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94";
100#else
20e59a13 101__RCSID("$NetBSD: main.c,v 1.117 2009/07/13 19:05:41 roy Exp $");
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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>
c106ca54 120#include <time.h>
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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 NO_PROXY "no_proxy" /* env var with list of non-proxied
130 * hosts, comma or space separated */
131
20e59a13 132static void setupoption(const char *, const char *, const char *);
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133int main(int, char *[]);
134
135int
0511850f 136main(int volatile argc, char **volatile argv)
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137{
138 int ch, rval;
139 struct passwd *pw;
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140 char *cp, *ep, *anonpass, *upload_path, *src_addr;
141 const char *anonuser;
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142 int dumbterm, s, isupload;
143 size_t len;
144 socklen_t slen;
145
c106ca54 146 tzset();
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147 setlocale(LC_ALL, "");
148 setprogname(argv[0]);
149
150 sigint_raised = 0;
151
152 ftpport = "ftp";
153 httpport = "http";
154 gateport = NULL;
155 cp = getenv("FTPSERVERPORT");
156 if (cp != NULL)
157 gateport = cp;
158 else
159 gateport = "ftpgate";
160 doglob = 1;
161 interactive = 1;
162 autologin = 1;
163 passivemode = 1;
164 activefallback = 1;
165 preserve = 1;
166 verbose = 0;
167 progress = 0;
168 gatemode = 0;
169 data = -1;
170 outfile = NULL;
171 restartautofetch = 0;
172#ifndef NO_EDITCOMPLETE
173 editing = 0;
174 el = NULL;
175 hist = NULL;
176#endif
177 bytes = 0;
178 mark = HASHBYTES;
179 rate_get = 0;
180 rate_get_incr = DEFAULTINCR;
181 rate_put = 0;
182 rate_put_incr = DEFAULTINCR;
183#ifdef INET6
184 epsv4 = 1;
fa70ef36 185 epsv6 = 1;
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186#else
187 epsv4 = 0;
fa70ef36 188 epsv6 = 0;
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189#endif
190 epsv4bad = 0;
fa70ef36 191 epsv6bad = 0;
0511850f 192 src_addr = NULL;
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193 upload_path = NULL;
194 isupload = 0;
195 reply_callback = NULL;
20e59a13 196#ifdef INET6
eedc536d 197 family = AF_UNSPEC;
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198#else
199 family = AF_INET; /* force AF_INET if no INET6 support */
200#endif
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201
202 netrc[0] = '\0';
203 cp = getenv("NETRC");
204 if (cp != NULL && strlcpy(netrc, cp, sizeof(netrc)) >= sizeof(netrc))
205 errx(1, "$NETRC `%s': %s", cp, strerror(ENAMETOOLONG));
206
207 /*
208 * Get the default socket buffer sizes if we don't already have them.
209 * It doesn't matter which socket we do this to, because on the first
210 * call no socket buffer sizes will have been modified, so we are
211 * guaranteed to get the system defaults.
212 */
213 s = socket(AF_INET, SOCK_STREAM, 0);
214 if (s == -1)
0511850f 215 err(1, "Can't create socket to determine default socket sizes");
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216 slen = sizeof(rcvbuf_size);
217 if (getsockopt(s, SOL_SOCKET, SO_RCVBUF,
218 (void *)&rcvbuf_size, &slen) == -1)
0511850f 219 err(1, "Unable to get default rcvbuf size");
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220 slen = sizeof(sndbuf_size);
221 if (getsockopt(s, SOL_SOCKET, SO_SNDBUF,
222 (void *)&sndbuf_size, &slen) == -1)
0511850f 223 err(1, "Unable to get default sndbuf size");
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224 (void)close(s);
225 /* sanity check returned buffer sizes */
226 if (rcvbuf_size <= 0)
227 rcvbuf_size = 8 * 1024;
228 if (sndbuf_size <= 0)
229 sndbuf_size = 8 * 1024;
230
231 if (sndbuf_size > 8 * 1024 * 1024)
232 sndbuf_size = 8 * 1024 * 1024;
233 if (rcvbuf_size > 8 * 1024 * 1024)
234 rcvbuf_size = 8 * 1024 * 1024;
235
236 marg_sl = ftp_sl_init();
237 if ((tmpdir = getenv("TMPDIR")) == NULL)
238 tmpdir = _PATH_TMP;
239
240 /* Set default operation mode based on FTPMODE environment variable */
241 if ((cp = getenv("FTPMODE")) != NULL) {
242 if (strcasecmp(cp, "passive") == 0) {
243 passivemode = 1;
244 activefallback = 0;
245 } else if (strcasecmp(cp, "active") == 0) {
246 passivemode = 0;
247 activefallback = 0;
248 } else if (strcasecmp(cp, "gate") == 0) {
249 gatemode = 1;
250 } else if (strcasecmp(cp, "auto") == 0) {
251 passivemode = 1;
252 activefallback = 1;
253 } else
0511850f 254 warnx("Unknown $FTPMODE `%s'; using defaults", cp);
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255 }
256
257 if (strcmp(getprogname(), "pftp") == 0) {
258 passivemode = 1;
259 activefallback = 0;
260 } else if (strcmp(getprogname(), "gate-ftp") == 0)
261 gatemode = 1;
262
263 gateserver = getenv("FTPSERVER");
264 if (gateserver == NULL || *gateserver == '\0')
265 gateserver = GATE_SERVER;
266 if (gatemode) {
267 if (*gateserver == '\0') {
268 warnx(
269"Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp");
270 gatemode = 0;
271 }
272 }
273
274 cp = getenv("TERM");
275 if (cp == NULL || strcmp(cp, "dumb") == 0)
276 dumbterm = 1;
277 else
278 dumbterm = 0;
279 fromatty = isatty(fileno(stdin));
280 ttyout = stdout;
281 if (isatty(fileno(ttyout))) {
282 verbose = 1; /* verbose if to a tty */
283 if (! dumbterm) {
284#ifndef NO_EDITCOMPLETE
285 if (fromatty) /* editing mode on if tty is usable */
286 editing = 1;
287#endif
288#ifndef NO_PROGRESS
289 if (foregroundproc())
290 progress = 1; /* progress bar on if fg */
291#endif
292 }
293 }
294
0511850f 295 while ((ch = getopt(argc, argv, "46AadefginN:o:pP:q:r:Rs:tT:u:vV")) != -1) {
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296 switch (ch) {
297 case '4':
298 family = AF_INET;
299 break;
300
301 case '6':
302#ifdef INET6
303 family = AF_INET6;
304#else
305 warnx("INET6 support is not available; ignoring -6");
306#endif
307 break;
308
309 case 'A':
310 activefallback = 0;
311 passivemode = 0;
312 break;
313
314 case 'a':
315 anonftp = 1;
316 break;
317
318 case 'd':
319 options |= SO_DEBUG;
320 ftp_debug++;
321 break;
322
323 case 'e':
324#ifndef NO_EDITCOMPLETE
325 editing = 0;
326#endif
327 break;
328
329 case 'f':
330 flushcache = 1;
331 break;
332
333 case 'g':
334 doglob = 0;
335 break;
336
337 case 'i':
338 interactive = 0;
339 break;
340
341 case 'n':
342 autologin = 0;
343 break;
344
345 case 'N':
346 if (strlcpy(netrc, optarg, sizeof(netrc))
347 >= sizeof(netrc))
348 errx(1, "%s: %s", optarg,
349 strerror(ENAMETOOLONG));
350 break;
351
352 case 'o':
353 outfile = optarg;
354 if (strcmp(outfile, "-") == 0)
355 ttyout = stderr;
356 break;
357
358 case 'p':
359 passivemode = 1;
360 activefallback = 0;
361 break;
362
363 case 'P':
364 ftpport = optarg;
365 break;
366
367 case 'q':
368 quit_time = strtol(optarg, &ep, 10);
369 if (quit_time < 1 || *ep != '\0')
0511850f 370 errx(1, "Bad quit value: %s", optarg);
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371 break;
372
373 case 'r':
374 retry_connect = strtol(optarg, &ep, 10);
375 if (retry_connect < 1 || *ep != '\0')
0511850f 376 errx(1, "Bad retry value: %s", optarg);
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377 break;
378
379 case 'R':
380 restartautofetch = 1;
381 break;
382
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383 case 's':
384 src_addr = optarg;
385 break;
386
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387 case 't':
388 trace = 1;
389 break;
390
391 case 'T':
392 {
393 int targc;
394 char *targv[6], *oac;
20e59a13 395 char cmdbuf[MAX_C_NAME];
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396
397 /* look for `dir,max[,incr]' */
398 targc = 0;
20e59a13
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399 (void)strlcpy(cmdbuf, "-T", sizeof(cmdbuf));
400 targv[targc++] = cmdbuf;
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401 oac = ftp_strdup(optarg);
402
403 while ((cp = strsep(&oac, ",")) != NULL) {
404 if (*cp == '\0') {
0511850f
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405 warnx("Bad throttle value `%s'",
406 optarg);
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407 usage();
408 /* NOTREACHED */
409 }
410 targv[targc++] = cp;
411 if (targc >= 5)
412 break;
413 }
414 if (parserate(targc, targv, 1) == -1)
415 usage();
416 free(oac);
417 break;
418 }
419
420 case 'u':
421 {
422 isupload = 1;
423 interactive = 0;
424 upload_path = ftp_strdup(optarg);
425
426 break;
427 }
428
429 case 'v':
430 progress = verbose = 1;
431 break;
432
433 case 'V':
434 progress = verbose = 0;
435 break;
436
437 default:
438 usage();
439 }
440 }
441 /* set line buffering on ttyout */
442 setvbuf(ttyout, NULL, _IOLBF, 0);
443 argc -= optind;
444 argv += optind;
445
446 cpend = 0; /* no pending replies */
447 proxy = 0; /* proxy not active */
448 crflag = 1; /* strip c.r. on ascii gets */
449 sendport = -1; /* not using ports */
450
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PA
451 if (src_addr != NULL) {
452 struct addrinfo hints;
453 int error;
454
455 memset(&hints, 0, sizeof(hints));
456 hints.ai_family = family;
457 hints.ai_socktype = SOCK_STREAM;
458 hints.ai_flags = AI_PASSIVE;
459 error = getaddrinfo(src_addr, NULL, &hints, &bindai);
460 if (error) {
461 errx(1, "Can't lookup `%s': %s", src_addr,
462 (error == EAI_SYSTEM) ? strerror(errno)
463 : gai_strerror(error));
464 }
465 }
466
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467 /*
468 * Cache the user name and home directory.
469 */
470 localhome = NULL;
471 localname = NULL;
472 anonuser = "anonymous";
473 cp = getenv("HOME");
474 if (! EMPTYSTRING(cp))
475 localhome = ftp_strdup(cp);
476 pw = NULL;
477 cp = getlogin();
478 if (cp != NULL)
479 pw = getpwnam(cp);
480 if (pw == NULL)
481 pw = getpwuid(getuid());
482 if (pw != NULL) {
483 if (localhome == NULL && !EMPTYSTRING(pw->pw_dir))
484 localhome = ftp_strdup(pw->pw_dir);
485 localname = ftp_strdup(pw->pw_name);
486 anonuser = localname;
487 }
488 if (netrc[0] == '\0' && localhome != NULL) {
489 if (strlcpy(netrc, localhome, sizeof(netrc)) >= sizeof(netrc) ||
490 strlcat(netrc, "/.netrc", sizeof(netrc)) >= sizeof(netrc)) {
491 warnx("%s/.netrc: %s", localhome,
492 strerror(ENAMETOOLONG));
493 netrc[0] = '\0';
494 }
495 }
496 if (localhome == NULL)
497 localhome = ftp_strdup("/");
498
499 /*
500 * Every anonymous FTP server I've encountered will accept the
501 * string "username@", and will append the hostname itself. We
502 * do this by default since many servers are picky about not
503 * having a FQDN in the anonymous password.
504 * - thorpej@NetBSD.org
505 */
506 len = strlen(anonuser) + 2;
507 anonpass = ftp_malloc(len);
508 (void)strlcpy(anonpass, anonuser, len);
509 (void)strlcat(anonpass, "@", len);
510
511 /*
512 * set all the defaults for options defined in
513 * struct option optiontab[] declared in cmdtab.c
514 */
515 setupoption("anonpass", getenv("FTPANONPASS"), anonpass);
516 setupoption("ftp_proxy", getenv(FTP_PROXY), "");
517 setupoption("http_proxy", getenv(HTTP_PROXY), "");
518 setupoption("no_proxy", getenv(NO_PROXY), "");
519 setupoption("pager", getenv("PAGER"), DEFAULTPAGER);
520 setupoption("prompt", getenv("FTPPROMPT"), DEFAULTPROMPT);
521 setupoption("rprompt", getenv("FTPRPROMPT"), DEFAULTRPROMPT);
522
523 free(anonpass);
524
525 setttywidth(0);
526#ifdef SIGINFO
527 (void)xsignal(SIGINFO, psummary);
528#endif
529 (void)xsignal(SIGQUIT, psummary);
530 (void)xsignal(SIGUSR1, crankrate);
531 (void)xsignal(SIGUSR2, crankrate);
532 (void)xsignal(SIGWINCH, setttywidth);
533
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534 if (argc > 0) {
535 if (isupload) {
536 rval = auto_put(argc, argv, upload_path);
537 sigint_or_rval_exit:
538 if (sigint_raised) {
539 (void)xsignal(SIGINT, SIG_DFL);
540 raise(SIGINT);
541 }
542 exit(rval);
543 } else if (strchr(argv[0], ':') != NULL
544 && ! isipv6addr(argv[0])) {
545 rval = auto_fetch(argc, argv);
546 if (rval >= 0) /* -1 == connected and cd-ed */
547 goto sigint_or_rval_exit;
548 } else {
20e59a13
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549 char *xargv[4], *uuser, *host;
550 char cmdbuf[MAXPATHLEN];
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551
552 if ((rval = sigsetjmp(toplevel, 1)))
553 goto sigint_or_rval_exit;
554 (void)xsignal(SIGINT, intr);
555 (void)xsignal(SIGPIPE, lostpeer);
20e59a13 556 uuser = NULL;
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557 host = argv[0];
558 cp = strchr(host, '@');
559 if (cp) {
560 *cp = '\0';
20e59a13 561 uuser = host;
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562 host = cp + 1;
563 }
20e59a13
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564 (void)strlcpy(cmdbuf, getprogname(), sizeof(cmdbuf));
565 xargv[0] = cmdbuf;
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566 xargv[1] = host;
567 xargv[2] = argv[1];
568 xargv[3] = NULL;
569 do {
570 int oautologin;
571
572 oautologin = autologin;
20e59a13 573 if (uuser != NULL) {
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574 anonftp = 0;
575 autologin = 0;
576 }
577 setpeer(argc+1, xargv);
578 autologin = oautologin;
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579 if (connected == 1 && uuser != NULL)
580 (void)ftp_login(host, uuser, NULL);
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581 if (!retry_connect)
582 break;
583 if (!connected) {
584 macnum = 0;
585 fprintf(ttyout,
586 "Retrying in %d seconds...\n",
587 retry_connect);
588 sleep(retry_connect);
589 }
590 } while (!connected);
591 retry_connect = 0; /* connected, stop hiding msgs */
592 }
593 }
594 if (isupload)
595 usage();
596
597#ifndef NO_EDITCOMPLETE
598 controlediting();
599#endif /* !NO_EDITCOMPLETE */
600
601 (void)sigsetjmp(toplevel, 1);
602 (void)xsignal(SIGINT, intr);
603 (void)xsignal(SIGPIPE, lostpeer);
604 for (;;)
605 cmdscanner();
606}
607
608/*
609 * Generate a prompt
610 */
611char *
612prompt(void)
613{
20e59a13 614 static char **promptopt;
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615 static char buf[MAXPATHLEN];
616
20e59a13 617 if (promptopt == NULL) {
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618 struct option *o;
619
620 o = getoption("prompt");
621 if (o == NULL)
0511850f 622 errx(1, "prompt: no such option `prompt'");
20e59a13 623 promptopt = &(o->value);
eedc536d 624 }
20e59a13 625 formatbuf(buf, sizeof(buf), *promptopt ? *promptopt : DEFAULTPROMPT);
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626 return (buf);
627}
628
629/*
630 * Generate an rprompt
631 */
632char *
633rprompt(void)
634{
20e59a13 635 static char **rpromptopt;
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636 static char buf[MAXPATHLEN];
637
20e59a13 638 if (rpromptopt == NULL) {
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639 struct option *o;
640
641 o = getoption("rprompt");
642 if (o == NULL)
0511850f 643 errx(1, "rprompt: no such option `rprompt'");
20e59a13 644 rpromptopt = &(o->value);
eedc536d 645 }
20e59a13 646 formatbuf(buf, sizeof(buf), *rpromptopt ? *rpromptopt : DEFAULTRPROMPT);
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647 return (buf);
648}
649
650/*
651 * Command parser.
652 */
653void
654cmdscanner(void)
655{
656 struct cmd *c;
657 char *p;
658#ifndef NO_EDITCOMPLETE
659 int ch;
eedc536d 660 size_t num;
20e59a13
PA
661#endif
662 int len;
663 char cmdbuf[MAX_C_NAME];
eedc536d
PA
664
665 for (;;) {
666#ifndef NO_EDITCOMPLETE
667 if (!editing) {
668#endif /* !NO_EDITCOMPLETE */
669 if (fromatty) {
670 fputs(prompt(), ttyout);
671 p = rprompt();
672 if (*p)
673 fprintf(ttyout, "%s ", p);
eedc536d 674 }
0511850f 675 (void)fflush(ttyout);
20e59a13
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676 len = get_line(stdin, line, sizeof(line), NULL);
677 switch (len) {
eedc536d
PA
678 case -1: /* EOF */
679 case -2: /* error */
680 if (fromatty)
681 putc('\n', ttyout);
682 quit(0, NULL);
683 /* NOTREACHED */
684 case -3: /* too long; try again */
685 fputs("Sorry, input line is too long.\n",
686 ttyout);
687 continue;
688 case 0: /* empty; try again */
689 continue;
690 default: /* all ok */
691 break;
692 }
693#ifndef NO_EDITCOMPLETE
694 } else {
695 const char *buf;
696 HistEvent ev;
697 cursor_pos = NULL;
698
699 buf = el_gets(el, &ch);
700 num = ch;
701 if (buf == NULL || num == 0) {
702 if (fromatty)
703 putc('\n', ttyout);
704 quit(0, NULL);
705 }
706 if (num >= sizeof(line)) {
707 fputs("Sorry, input line is too long.\n",
708 ttyout);
709 break;
710 }
711 memcpy(line, buf, num);
712 if (line[--num] == '\n') {
713 line[num] = '\0';
714 if (num == 0)
715 break;
716 }
717 history(hist, &ev, H_ENTER, buf);
718 }
719#endif /* !NO_EDITCOMPLETE */
720
721 makeargv();
722 if (margc == 0)
723 continue;
724 c = getcmd(margv[0]);
725 if (c == (struct cmd *)-1) {
726 fputs("?Ambiguous command.\n", ttyout);
727 continue;
728 }
729 if (c == NULL) {
730#if !defined(NO_EDITCOMPLETE)
731 /*
732 * attempt to el_parse() unknown commands.
733 * any command containing a ':' would be parsed
734 * as "[prog:]cmd ...", and will result in a
735 * false positive if prog != "ftp", so treat
736 * such commands as invalid.
737 */
738 if (strchr(margv[0], ':') != NULL ||
fa70ef36 739 !editing ||
eedc536d
PA
740 el_parse(el, margc, (const char **)margv) != 0)
741#endif /* !NO_EDITCOMPLETE */
742 fputs("?Invalid command.\n", ttyout);
743 continue;
744 }
745 if (c->c_conn && !connected) {
746 fputs("Not connected.\n", ttyout);
747 continue;
748 }
749 confirmrest = 0;
20e59a13
PA
750 (void)strlcpy(cmdbuf, c->c_name, sizeof(cmdbuf));
751 margv[0] = cmdbuf;
eedc536d
PA
752 (*c->c_handler)(margc, margv);
753 if (bell && c->c_bell)
754 (void)putc('\007', ttyout);
755 if (c->c_handler != help)
756 break;
757 }
758 (void)xsignal(SIGINT, intr);
759 (void)xsignal(SIGPIPE, lostpeer);
760}
761
762struct cmd *
763getcmd(const char *name)
764{
765 const char *p, *q;
766 struct cmd *c, *found;
767 int nmatches, longest;
768
769 if (name == NULL)
770 return (0);
771
772 longest = 0;
773 nmatches = 0;
774 found = 0;
775 for (c = cmdtab; (p = c->c_name) != NULL; c++) {
776 for (q = name; *q == *p++; q++)
777 if (*q == 0) /* exact match? */
778 return (c);
779 if (!*q) { /* the name was a prefix */
780 if (q - name > longest) {
781 longest = q - name;
782 nmatches = 1;
783 found = c;
784 } else if (q - name == longest)
785 nmatches++;
786 }
787 }
788 if (nmatches > 1)
789 return ((struct cmd *)-1);
790 return (found);
791}
792
793/*
794 * Slice a string up into argc/argv.
795 */
796
797int slrflag;
798
799void
800makeargv(void)
801{
802 char *argp;
803
804 stringbase = line; /* scan from first of buffer */
805 argbase = argbuf; /* store from first of buffer */
806 slrflag = 0;
807 marg_sl->sl_cur = 0; /* reset to start of marg_sl */
808 for (margc = 0; ; margc++) {
809 argp = slurpstring();
810 ftp_sl_add(marg_sl, argp);
811 if (argp == NULL)
812 break;
813 }
814#ifndef NO_EDITCOMPLETE
815 if (cursor_pos == line) {
816 cursor_argc = 0;
817 cursor_argo = 0;
818 } else if (cursor_pos != NULL) {
819 cursor_argc = margc;
820 cursor_argo = strlen(margv[margc-1]);
821 }
822#endif /* !NO_EDITCOMPLETE */
823}
824
825#ifdef NO_EDITCOMPLETE
826#define INC_CHKCURSOR(x) (x)++
827#else /* !NO_EDITCOMPLETE */
828#define INC_CHKCURSOR(x) { (x)++ ; \
829 if (x == cursor_pos) { \
830 cursor_argc = margc; \
831 cursor_argo = ap-argbase; \
832 cursor_pos = NULL; \
833 } }
834
835#endif /* !NO_EDITCOMPLETE */
836
837/*
838 * Parse string into argbuf;
839 * implemented with FSM to
840 * handle quoting and strings
841 */
842char *
843slurpstring(void)
844{
20e59a13
PA
845 static char bangstr[2] = { '!', '\0' };
846 static char dollarstr[2] = { '$', '\0' };
eedc536d
PA
847 int got_one = 0;
848 char *sb = stringbase;
849 char *ap = argbase;
850 char *tmp = argbase; /* will return this if token found */
851
852 if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
853 switch (slrflag) { /* and $ as token for macro invoke */
854 case 0:
855 slrflag++;
856 INC_CHKCURSOR(stringbase);
20e59a13 857 return ((*sb == '!') ? bangstr : dollarstr);
eedc536d
PA
858 /* NOTREACHED */
859 case 1:
860 slrflag++;
861 altarg = stringbase;
862 break;
863 default:
864 break;
865 }
866 }
867
868S0:
869 switch (*sb) {
870
871 case '\0':
872 goto OUT;
873
874 case ' ':
875 case '\t':
876 INC_CHKCURSOR(sb);
877 goto S0;
878
879 default:
880 switch (slrflag) {
881 case 0:
882 slrflag++;
883 break;
884 case 1:
885 slrflag++;
886 altarg = sb;
887 break;
888 default:
889 break;
890 }
891 goto S1;
892 }
893
894S1:
895 switch (*sb) {
896
897 case ' ':
898 case '\t':
899 case '\0':
900 goto OUT; /* end of token */
901
902 case '\\':
903 INC_CHKCURSOR(sb);
904 goto S2; /* slurp next character */
905
906 case '"':
907 INC_CHKCURSOR(sb);
908 goto S3; /* slurp quoted string */
909
910 default:
911 *ap = *sb; /* add character to token */
912 ap++;
913 INC_CHKCURSOR(sb);
914 got_one = 1;
915 goto S1;
916 }
917
918S2:
919 switch (*sb) {
920
921 case '\0':
922 goto OUT;
923
924 default:
925 *ap = *sb;
926 ap++;
927 INC_CHKCURSOR(sb);
928 got_one = 1;
929 goto S1;
930 }
931
932S3:
933 switch (*sb) {
934
935 case '\0':
936 goto OUT;
937
938 case '"':
939 INC_CHKCURSOR(sb);
940 goto S1;
941
942 default:
943 *ap = *sb;
944 ap++;
945 INC_CHKCURSOR(sb);
946 got_one = 1;
947 goto S3;
948 }
949
950OUT:
951 if (got_one)
952 *ap++ = '\0';
953 argbase = ap; /* update storage pointer */
954 stringbase = sb; /* update scan pointer */
955 if (got_one) {
956 return (tmp);
957 }
958 switch (slrflag) {
959 case 0:
960 slrflag++;
961 break;
962 case 1:
963 slrflag++;
964 altarg = NULL;
965 break;
966 default:
967 break;
968 }
969 return (NULL);
970}
971
972/*
973 * Help/usage command.
974 * Call each command handler with argc == 0 and argv[0] == name.
975 */
976void
977help(int argc, char *argv[])
978{
979 struct cmd *c;
20e59a13
PA
980 char *nargv[1], *cmd;
981 const char *p;
eedc536d
PA
982 int isusage;
983
984 cmd = argv[0];
985 isusage = (strcmp(cmd, "usage") == 0);
986 if (argc == 0 || (isusage && argc == 1)) {
987 UPRINTF("usage: %s [command [...]]\n", cmd);
988 return;
989 }
990 if (argc == 1) {
991 StringList *buf;
992
993 buf = ftp_sl_init();
994 fprintf(ttyout,
995 "%sommands may be abbreviated. Commands are:\n\n",
996 proxy ? "Proxy c" : "C");
997 for (c = cmdtab; (p = c->c_name) != NULL; c++)
998 if (!proxy || c->c_proxy)
20e59a13 999 ftp_sl_add(buf, ftp_strdup(p));
eedc536d 1000 list_vertical(buf);
20e59a13 1001 sl_free(buf, 1);
eedc536d
PA
1002 return;
1003 }
1004
1005#define HELPINDENT ((int) sizeof("disconnect"))
1006
1007 while (--argc > 0) {
1008 char *arg;
20e59a13 1009 char cmdbuf[MAX_C_NAME];
eedc536d
PA
1010
1011 arg = *++argv;
1012 c = getcmd(arg);
1013 if (c == (struct cmd *)-1)
1014 fprintf(ttyout, "?Ambiguous %s command `%s'\n",
1015 cmd, arg);
1016 else if (c == NULL)
1017 fprintf(ttyout, "?Invalid %s command `%s'\n",
1018 cmd, arg);
1019 else {
1020 if (isusage) {
20e59a13
PA
1021 (void)strlcpy(cmdbuf, c->c_name, sizeof(cmdbuf));
1022 nargv[0] = cmdbuf;
eedc536d
PA
1023 (*c->c_handler)(0, nargv);
1024 } else
1025 fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1026 c->c_name, c->c_help);
1027 }
1028 }
1029}
1030
1031struct option *
1032getoption(const char *name)
1033{
1034 const char *p;
1035 struct option *c;
1036
1037 if (name == NULL)
1038 return (NULL);
1039 for (c = optiontab; (p = c->name) != NULL; c++) {
1040 if (strcasecmp(p, name) == 0)
1041 return (c);
1042 }
1043 return (NULL);
1044}
1045
1046char *
1047getoptionvalue(const char *name)
1048{
1049 struct option *c;
1050
1051 if (name == NULL)
0511850f 1052 errx(1, "getoptionvalue: invoked with NULL name");
eedc536d
PA
1053 c = getoption(name);
1054 if (c != NULL)
1055 return (c->value);
0511850f 1056 errx(1, "getoptionvalue: invoked with unknown option `%s'", name);
eedc536d
PA
1057 /* NOTREACHED */
1058}
1059
1060static void
20e59a13 1061setupoption(const char *name, const char *value, const char *defaultvalue)
eedc536d 1062{
20e59a13 1063 set_option(name, value ? value : defaultvalue, 0);
eedc536d
PA
1064}
1065
1066void
1067usage(void)
1068{
1069 const char *progname = getprogname();
1070
1071 (void)fprintf(stderr,
3b706bf0 1072"usage: %s [-46AadefginpRtVv] [-N netrc] [-o outfile] [-P port] [-q quittime]\n"
0511850f
PA
1073" [-r retry] [-s srcaddr] [-T dir,max[,inc]]\n"
1074" [[user@]host [port]] [host:path[/]] [file:///file]\n"
1075" [ftp://[user[:pass]@]host[:port]/path[/]]\n"
eedc536d
PA
1076" [http://[user[:pass]@]host[:port]/path] [...]\n"
1077" %s -u URL file [...]\n", progname, progname);
1078 exit(1);
1079}