1 /* $NetBSD: main.c,v 1.105 2007/05/22 05:16:48 lukem Exp $ */
4 * Copyright (c) 1996-2005 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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.
40 * Copyright (c) 1985, 1989, 1993, 1994
41 * The Regents of the University of California. All rights reserved.
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
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.
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
69 * Copyright (C) 1997 and 1998 WIDE Project.
70 * All rights reserved.
72 * Redistribution and use in source and binary forms, with or without
73 * modification, are permitted provided that the following conditions
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.
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
97 #include <sys/cdefs.h>
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 */
105 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94";
107 __RCSID("$NetBSD: main.c,v 1.105 2007/05/22 05:16:48 lukem Exp $");
109 #endif /* not lint */
112 * FTP User Program -- Command Interface.
114 #include <sys/types.h>
115 #include <sys/socket.h>
130 #define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */
133 #define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */
134 #define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */
135 #define NO_PROXY "no_proxy" /* env var with list of non-proxied
136 * hosts, comma or space separated */
138 static void setupoption(char *, char *, char *);
139 int main(int, char *[]);
142 main(int volatile argc, char **volatile argv)
146 char *cp, *ep, *anonuser, *anonpass, *upload_path, *src_addr;
147 int dumbterm, s, isupload;
152 setlocale(LC_ALL, "");
153 setprogname(argv[0]);
160 cp = getenv("FTPSERVERPORT");
164 gateport = "ftpgate";
176 restartautofetch = 0;
177 #ifndef NO_EDITCOMPLETE
185 rate_get_incr = DEFAULTINCR;
187 rate_put_incr = DEFAULTINCR;
197 reply_callback = NULL;
201 cp = getenv("NETRC");
202 if (cp != NULL && strlcpy(netrc, cp, sizeof(netrc)) >= sizeof(netrc))
203 errx(1, "$NETRC `%s': %s", cp, strerror(ENAMETOOLONG));
206 * Get the default socket buffer sizes if we don't already have them.
207 * It doesn't matter which socket we do this to, because on the first
208 * call no socket buffer sizes will have been modified, so we are
209 * guaranteed to get the system defaults.
211 s = socket(AF_INET, SOCK_STREAM, 0);
213 err(1, "Can't create socket to determine default socket sizes");
214 slen = sizeof(rcvbuf_size);
215 if (getsockopt(s, SOL_SOCKET, SO_RCVBUF,
216 (void *)&rcvbuf_size, &slen) == -1)
217 err(1, "Unable to get default rcvbuf size");
218 slen = sizeof(sndbuf_size);
219 if (getsockopt(s, SOL_SOCKET, SO_SNDBUF,
220 (void *)&sndbuf_size, &slen) == -1)
221 err(1, "Unable to get default sndbuf size");
223 /* sanity check returned buffer sizes */
224 if (rcvbuf_size <= 0)
225 rcvbuf_size = 8 * 1024;
226 if (sndbuf_size <= 0)
227 sndbuf_size = 8 * 1024;
229 if (sndbuf_size > 8 * 1024 * 1024)
230 sndbuf_size = 8 * 1024 * 1024;
231 if (rcvbuf_size > 8 * 1024 * 1024)
232 rcvbuf_size = 8 * 1024 * 1024;
234 marg_sl = ftp_sl_init();
235 if ((tmpdir = getenv("TMPDIR")) == NULL)
238 /* Set default operation mode based on FTPMODE environment variable */
239 if ((cp = getenv("FTPMODE")) != NULL) {
240 if (strcasecmp(cp, "passive") == 0) {
243 } else if (strcasecmp(cp, "active") == 0) {
246 } else if (strcasecmp(cp, "gate") == 0) {
248 } else if (strcasecmp(cp, "auto") == 0) {
252 warnx("Unknown $FTPMODE `%s'; using defaults", cp);
255 if (strcmp(getprogname(), "pftp") == 0) {
258 } else if (strcmp(getprogname(), "gate-ftp") == 0)
261 gateserver = getenv("FTPSERVER");
262 if (gateserver == NULL || *gateserver == '\0')
263 gateserver = GATE_SERVER;
265 if (*gateserver == '\0') {
267 "Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp");
273 if (cp == NULL || strcmp(cp, "dumb") == 0)
277 fromatty = isatty(fileno(stdin));
279 if (isatty(fileno(ttyout))) {
280 verbose = 1; /* verbose if to a tty */
282 #ifndef NO_EDITCOMPLETE
283 if (fromatty) /* editing mode on if tty is usable */
287 if (foregroundproc())
288 progress = 1; /* progress bar on if fg */
293 while ((ch = getopt(argc, argv, "46AadefginN:o:pP:q:r:Rs:tT:u:vV")) != -1) {
303 warnx("INET6 support is not available; ignoring -6");
322 #ifndef NO_EDITCOMPLETE
344 if (strlcpy(netrc, optarg, sizeof(netrc))
346 errx(1, "%s: %s", optarg,
347 strerror(ENAMETOOLONG));
352 if (strcmp(outfile, "-") == 0)
366 quit_time = strtol(optarg, &ep, 10);
367 if (quit_time < 1 || *ep != '\0')
368 errx(1, "Bad quit value: %s", optarg);
372 retry_connect = strtol(optarg, &ep, 10);
373 if (retry_connect < 1 || *ep != '\0')
374 errx(1, "Bad retry value: %s", optarg);
378 restartautofetch = 1;
392 char *targv[6], *oac;
394 /* look for `dir,max[,incr]' */
396 targv[targc++] = "-T";
397 oac = ftp_strdup(optarg);
399 while ((cp = strsep(&oac, ",")) != NULL) {
401 warnx("Bad throttle value `%s'",
410 if (parserate(targc, targv, 1) == -1)
420 upload_path = ftp_strdup(optarg);
426 progress = verbose = 1;
430 progress = verbose = 0;
437 /* set line buffering on ttyout */
438 setvbuf(ttyout, NULL, _IOLBF, 0);
442 cpend = 0; /* no pending replies */
443 proxy = 0; /* proxy not active */
444 crflag = 1; /* strip c.r. on ascii gets */
445 sendport = -1; /* not using ports */
447 if (src_addr != NULL) {
448 struct addrinfo hints;
451 memset(&hints, 0, sizeof(hints));
452 hints.ai_family = family;
453 hints.ai_socktype = SOCK_STREAM;
454 hints.ai_flags = AI_PASSIVE;
455 error = getaddrinfo(src_addr, NULL, &hints, &bindai);
457 errx(1, "Can't lookup `%s': %s", src_addr,
458 (error == EAI_SYSTEM) ? strerror(errno)
459 : gai_strerror(error));
464 * Cache the user name and home directory.
468 anonuser = "anonymous";
470 if (! EMPTYSTRING(cp))
471 localhome = ftp_strdup(cp);
477 pw = getpwuid(getuid());
479 if (localhome == NULL && !EMPTYSTRING(pw->pw_dir))
480 localhome = ftp_strdup(pw->pw_dir);
481 localname = ftp_strdup(pw->pw_name);
482 anonuser = localname;
484 if (netrc[0] == '\0' && localhome != NULL) {
485 if (strlcpy(netrc, localhome, sizeof(netrc)) >= sizeof(netrc) ||
486 strlcat(netrc, "/.netrc", sizeof(netrc)) >= sizeof(netrc)) {
487 warnx("%s/.netrc: %s", localhome,
488 strerror(ENAMETOOLONG));
492 if (localhome == NULL)
493 localhome = ftp_strdup("/");
496 * Every anonymous FTP server I've encountered will accept the
497 * string "username@", and will append the hostname itself. We
498 * do this by default since many servers are picky about not
499 * having a FQDN in the anonymous password.
500 * - thorpej@NetBSD.org
502 len = strlen(anonuser) + 2;
503 anonpass = ftp_malloc(len);
504 (void)strlcpy(anonpass, anonuser, len);
505 (void)strlcat(anonpass, "@", len);
508 * set all the defaults for options defined in
509 * struct option optiontab[] declared in cmdtab.c
511 setupoption("anonpass", getenv("FTPANONPASS"), anonpass);
512 setupoption("ftp_proxy", getenv(FTP_PROXY), "");
513 setupoption("http_proxy", getenv(HTTP_PROXY), "");
514 setupoption("no_proxy", getenv(NO_PROXY), "");
515 setupoption("pager", getenv("PAGER"), DEFAULTPAGER);
516 setupoption("prompt", getenv("FTPPROMPT"), DEFAULTPROMPT);
517 setupoption("rprompt", getenv("FTPRPROMPT"), DEFAULTRPROMPT);
523 (void)xsignal(SIGINFO, psummary);
525 (void)xsignal(SIGQUIT, psummary);
526 (void)xsignal(SIGUSR1, crankrate);
527 (void)xsignal(SIGUSR2, crankrate);
528 (void)xsignal(SIGWINCH, setttywidth);
532 rval = auto_put(argc, argv, upload_path);
535 (void)xsignal(SIGINT, SIG_DFL);
539 } else if (strchr(argv[0], ':') != NULL
540 && ! isipv6addr(argv[0])) {
541 rval = auto_fetch(argc, argv);
542 if (rval >= 0) /* -1 == connected and cd-ed */
543 goto sigint_or_rval_exit;
545 char *xargv[4], *user, *host;
547 if ((rval = sigsetjmp(toplevel, 1)))
548 goto sigint_or_rval_exit;
549 (void)xsignal(SIGINT, intr);
550 (void)xsignal(SIGPIPE, lostpeer);
553 cp = strchr(host, '@');
559 /* XXX discards const */
560 xargv[0] = (char *)getprogname();
567 oautologin = autologin;
572 setpeer(argc+1, xargv);
573 autologin = oautologin;
574 if (connected == 1 && user != NULL)
575 (void)ftp_login(host, user, NULL);
581 "Retrying in %d seconds...\n",
583 sleep(retry_connect);
585 } while (!connected);
586 retry_connect = 0; /* connected, stop hiding msgs */
592 #ifndef NO_EDITCOMPLETE
594 #endif /* !NO_EDITCOMPLETE */
596 (void)sigsetjmp(toplevel, 1);
597 (void)xsignal(SIGINT, intr);
598 (void)xsignal(SIGPIPE, lostpeer);
609 static char **prompt;
610 static char buf[MAXPATHLEN];
612 if (prompt == NULL) {
615 o = getoption("prompt");
617 errx(1, "prompt: no such option `prompt'");
618 prompt = &(o->value);
620 formatbuf(buf, sizeof(buf), *prompt ? *prompt : DEFAULTPROMPT);
625 * Generate an rprompt
630 static char **rprompt;
631 static char buf[MAXPATHLEN];
633 if (rprompt == NULL) {
636 o = getoption("rprompt");
638 errx(1, "rprompt: no such option `rprompt'");
639 rprompt = &(o->value);
641 formatbuf(buf, sizeof(buf), *rprompt ? *rprompt : DEFAULTRPROMPT);
653 #ifndef NO_EDITCOMPLETE
659 #ifndef NO_EDITCOMPLETE
661 #endif /* !NO_EDITCOMPLETE */
663 fputs(prompt(), ttyout);
666 fprintf(ttyout, "%s ", p);
668 (void)fflush(ttyout);
669 num = getline(stdin, line, sizeof(line), NULL);
677 case -3: /* too long; try again */
678 fputs("Sorry, input line is too long.\n",
681 case 0: /* empty; try again */
683 default: /* all ok */
686 #ifndef NO_EDITCOMPLETE
692 buf = el_gets(el, &ch);
694 if (buf == NULL || num == 0) {
699 if (num >= sizeof(line)) {
700 fputs("Sorry, input line is too long.\n",
704 memcpy(line, buf, num);
705 if (line[--num] == '\n') {
710 history(hist, &ev, H_ENTER, buf);
712 #endif /* !NO_EDITCOMPLETE */
717 c = getcmd(margv[0]);
718 if (c == (struct cmd *)-1) {
719 fputs("?Ambiguous command.\n", ttyout);
723 #if !defined(NO_EDITCOMPLETE)
725 * attempt to el_parse() unknown commands.
726 * any command containing a ':' would be parsed
727 * as "[prog:]cmd ...", and will result in a
728 * false positive if prog != "ftp", so treat
729 * such commands as invalid.
731 if (strchr(margv[0], ':') != NULL ||
732 el_parse(el, margc, (const char **)margv) != 0)
733 #endif /* !NO_EDITCOMPLETE */
734 fputs("?Invalid command.\n", ttyout);
737 if (c->c_conn && !connected) {
738 fputs("Not connected.\n", ttyout);
742 margv[0] = c->c_name;
743 (*c->c_handler)(margc, margv);
744 if (bell && c->c_bell)
745 (void)putc('\007', ttyout);
746 if (c->c_handler != help)
749 (void)xsignal(SIGINT, intr);
750 (void)xsignal(SIGPIPE, lostpeer);
754 getcmd(const char *name)
757 struct cmd *c, *found;
758 int nmatches, longest;
766 for (c = cmdtab; (p = c->c_name) != NULL; c++) {
767 for (q = name; *q == *p++; q++)
768 if (*q == 0) /* exact match? */
770 if (!*q) { /* the name was a prefix */
771 if (q - name > longest) {
775 } else if (q - name == longest)
780 return ((struct cmd *)-1);
785 * Slice a string up into argc/argv.
795 stringbase = line; /* scan from first of buffer */
796 argbase = argbuf; /* store from first of buffer */
798 marg_sl->sl_cur = 0; /* reset to start of marg_sl */
799 for (margc = 0; ; margc++) {
800 argp = slurpstring();
801 ftp_sl_add(marg_sl, argp);
805 #ifndef NO_EDITCOMPLETE
806 if (cursor_pos == line) {
809 } else if (cursor_pos != NULL) {
811 cursor_argo = strlen(margv[margc-1]);
813 #endif /* !NO_EDITCOMPLETE */
816 #ifdef NO_EDITCOMPLETE
817 #define INC_CHKCURSOR(x) (x)++
818 #else /* !NO_EDITCOMPLETE */
819 #define INC_CHKCURSOR(x) { (x)++ ; \
820 if (x == cursor_pos) { \
821 cursor_argc = margc; \
822 cursor_argo = ap-argbase; \
826 #endif /* !NO_EDITCOMPLETE */
829 * Parse string into argbuf;
830 * implemented with FSM to
831 * handle quoting and strings
837 char *sb = stringbase;
839 char *tmp = argbase; /* will return this if token found */
841 if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */
842 switch (slrflag) { /* and $ as token for macro invoke */
845 INC_CHKCURSOR(stringbase);
846 return ((*sb == '!') ? "!" : "$");
889 goto OUT; /* end of token */
893 goto S2; /* slurp next character */
897 goto S3; /* slurp quoted string */
900 *ap = *sb; /* add character to token */
942 argbase = ap; /* update storage pointer */
943 stringbase = sb; /* update scan pointer */
962 * Help/usage command.
963 * Call each command handler with argc == 0 and argv[0] == name.
966 help(int argc, char *argv[])
969 char *nargv[1], *p, *cmd;
973 isusage = (strcmp(cmd, "usage") == 0);
974 if (argc == 0 || (isusage && argc == 1)) {
975 UPRINTF("usage: %s [command [...]]\n", cmd);
983 "%sommands may be abbreviated. Commands are:\n\n",
984 proxy ? "Proxy c" : "C");
985 for (c = cmdtab; (p = c->c_name) != NULL; c++)
986 if (!proxy || c->c_proxy)
993 #define HELPINDENT ((int) sizeof("disconnect"))
1000 if (c == (struct cmd *)-1)
1001 fprintf(ttyout, "?Ambiguous %s command `%s'\n",
1004 fprintf(ttyout, "?Invalid %s command `%s'\n",
1008 nargv[0] = c->c_name;
1009 (*c->c_handler)(0, nargv);
1011 fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
1012 c->c_name, c->c_help);
1018 getoption(const char *name)
1025 for (c = optiontab; (p = c->name) != NULL; c++) {
1026 if (strcasecmp(p, name) == 0)
1033 getoptionvalue(const char *name)
1038 errx(1, "getoptionvalue: invoked with NULL name");
1039 c = getoption(name);
1042 errx(1, "getoptionvalue: invoked with unknown option `%s'", name);
1047 setupoption(char *name, char *value, char *defaultvalue)
1052 nargv[0] = "setupoption()";
1054 nargv[2] = (value ? value : defaultvalue);
1057 setoption(3, nargv);
1064 const char *progname = getprogname();
1066 (void)fprintf(stderr,
1067 "usage: %s [-46AadefginpRtvV] [-N netrc] [-o outfile] [-P port] [-q quittime]\n"
1068 " [-r retry] [-s srcaddr] [-T dir,max[,inc]]\n"
1069 " [[user@]host [port]] [host:path[/]] [file:///file]\n"
1070 " [ftp://[user[:pass]@]host[:port]/path[/]]\n"
1071 " [http://[user[:pass]@]host[:port]/path] [...]\n"
1072 " %s -u URL file [...]\n", progname, progname);