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Diffstat (limited to 'contrib/lukemftp/src/main.c')
| -rw-r--r-- | contrib/lukemftp/src/main.c | 965 |
1 files changed, 965 insertions, 0 deletions
diff --git a/contrib/lukemftp/src/main.c b/contrib/lukemftp/src/main.c new file mode 100644 index 000000000000..d28a08f1e822 --- /dev/null +++ b/contrib/lukemftp/src/main.c @@ -0,0 +1,965 @@ +/* $NetBSD: main.c,v 1.73 2000/07/18 07:16:56 lukem Exp $ */ + +/*- + * Copyright (c) 1996-2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1985, 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Copyright (C) 1997 and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * FTP User Program -- Command Interface. + */ + +#include "lukemftp.h" + +#define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */ +#include "ftp_var.h" + +#define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */ +#define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */ +#define NO_PROXY "no_proxy" /* env var with list of non-proxied + * hosts, comma or space separated */ + +char * __progname; + +static void setupoption(char *, char *, char *); +int main(int, char *[]); + +int +main(int argc, char *argv[]) +{ + int ch, rval; + struct passwd *pw = NULL; + char *cp, *ep, *anonuser, *anonpass, *upload_path; + int dumbterm, s, len, isupload; + + __progname = strrchr(argv[0], '/'); + if (__progname == NULL) + __progname = argv[0]; + else + __progname++; + + ftpport = "ftp"; + httpport = "http"; + gateport = NULL; + cp = getenv("FTPSERVERPORT"); + if (cp != NULL) + gateport = cp; + else + gateport = "ftpgate"; + doglob = 1; + interactive = 1; + autologin = 1; + passivemode = 1; + activefallback = 1; + preserve = 1; + verbose = 0; + progress = 0; + gatemode = 0; + data = -1; + outfile = NULL; + restartautofetch = 0; +#ifndef NO_EDITCOMPLETE + editing = 0; + el = NULL; + hist = NULL; +#endif + bytes = 0; + mark = HASHBYTES; + rate_get = 0; + rate_get_incr = DEFAULTINCR; + rate_put = 0; + rate_put_incr = DEFAULTINCR; +#ifdef INET6 + epsv4 = 1; +#else + epsv4 = 0; +#endif + epsv4bad = 0; + upload_path = NULL; + isupload = 0; + reply_callback = NULL; + + /* + * Get the default socket buffer sizes if we don't already have them. + * It doesn't matter which socket we do this to, because on the first + * call no socket buffer sizes will have been modified, so we are + * guaranteed to get the system defaults. + */ + s = socket(AF_INET, SOCK_STREAM, 0); + if (s == -1) + err(1, "can't create socket"); + len = sizeof(rcvbuf_size); + if (getsockopt(s, SOL_SOCKET, SO_RCVBUF, (void *) &rcvbuf_size, &len) + < 0) + err(1, "unable to get default rcvbuf size"); + len = sizeof(sndbuf_size); + if (getsockopt(s, SOL_SOCKET, SO_SNDBUF, (void *) &sndbuf_size, &len) + < 0) + err(1, "unable to get default sndbuf size"); + (void)close(s); + /* sanity check returned buffer sizes */ + if (rcvbuf_size <= 0) + rcvbuf_size = 8192; + if (sndbuf_size <= 0) + sndbuf_size = 8192; + + marg_sl = xsl_init(); + if ((tmpdir = getenv("TMPDIR")) == NULL) + tmpdir = _PATH_TMP; + + /* Set default operation mode based on FTPMODE environment variable */ + if ((cp = getenv("FTPMODE")) != NULL) { + if (strcasecmp(cp, "passive") == 0) { + passivemode = 1; + activefallback = 0; + } else if (strcasecmp(cp, "active") == 0) { + passivemode = 0; + activefallback = 0; + } else if (strcasecmp(cp, "gate") == 0) { + gatemode = 1; + } else if (strcasecmp(cp, "auto") == 0) { + passivemode = 1; + activefallback = 1; + } else + warnx("unknown $FTPMODE '%s'; using defaults", cp); + } + + if (strcmp(__progname, "pftp") == 0) { + passivemode = 1; + activefallback = 0; + } else if (strcmp(__progname, "gate-ftp") == 0) + gatemode = 1; + + gateserver = getenv("FTPSERVER"); + if (gateserver == NULL || *gateserver == '\0') + gateserver = GATE_SERVER; + if (gatemode) { + if (*gateserver == '\0') { + warnx( +"Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp"); + gatemode = 0; + } + } + + cp = getenv("TERM"); + if (cp == NULL || strcmp(cp, "dumb") == 0) + dumbterm = 1; + else + dumbterm = 0; + fromatty = isatty(fileno(stdin)); + ttyout = stdout; + if (isatty(fileno(ttyout))) { + verbose = 1; /* verbose if to a tty */ + if (! dumbterm) { +#ifndef NO_EDITCOMPLETE + if (fromatty) /* editing mode on if tty is usable */ + editing = 1; +#endif +#ifndef NO_PROGRESS + if (foregroundproc()) + progress = 1; /* progress bar on if fg */ +#endif + } + } + + while ((ch = getopt(argc, argv, "Aadefgino:pP:r:RtT:u:vV")) != -1) { + switch (ch) { + case 'A': + activefallback = 0; + passivemode = 0; + break; + + case 'a': + anonftp = 1; + break; + + case 'd': + options |= SO_DEBUG; + debug++; + break; + + case 'e': +#ifndef NO_EDITCOMPLETE + editing = 0; +#endif + break; + + case 'f': + flushcache = 1; + break; + + case 'g': + doglob = 0; + break; + + case 'i': + interactive = 0; + break; + + case 'n': + autologin = 0; + break; + + case 'o': + outfile = optarg; + if (strcmp(outfile, "-") == 0) + ttyout = stderr; + break; + + case 'p': + passivemode = 1; + activefallback = 0; + break; + + case 'P': + ftpport = optarg; + break; + + case 'r': + retry_connect = strtol(optarg, &ep, 10); + if (retry_connect < 1 || *ep != '\0') + errx(1, "bad retry value: %s", optarg); + break; + + case 'R': + restartautofetch = 1; + break; + + case 't': + trace = 1; + break; + + case 'T': + { + int targc; + char *targv[6], *oac; + + /* look for `dir,max[,incr]' */ + targc = 0; + targv[targc++] = "-T"; + oac = xstrdup(optarg); + + while ((cp = strsep(&oac, ",")) != NULL) { + if (*cp == '\0') { + warnx("bad throttle value: %s", optarg); + usage(); + /* NOTREACHED */ + } + targv[targc++] = cp; + if (targc >= 5) + break; + } + if (parserate(targc, targv, 1) == -1) + usage(); + free(oac); + break; + } + + case 'u': + { + isupload = 1; + interactive = 0; + upload_path = xstrdup(optarg); + + break; + } + + case 'v': + progress = verbose = 1; + break; + + case 'V': + progress = verbose = 0; + break; + + default: + usage(); + } + } + /* set line buffering on ttyout */ + setvbuf(ttyout, NULL, _IOLBF, 0); + argc -= optind; + argv += optind; + + cpend = 0; /* no pending replies */ + proxy = 0; /* proxy not active */ + crflag = 1; /* strip c.r. on ascii gets */ + sendport = -1; /* not using ports */ + /* + * Set up the home directory in case we're globbing. + */ + cp = getlogin(); + if (cp != NULL) + pw = getpwnam(cp); + if (pw == NULL) + pw = getpwuid(getuid()); + if (pw != NULL) { + (void)strlcpy(home, pw->pw_dir, sizeof(home)); + anonuser = pw->pw_name; + } else { + (void)strlcpy(home, "/", sizeof(home)); + anonuser = "anonymous"; + } + + /* + * Every anonymous FTP server I've encountered will accept the + * string "username@", and will append the hostname itself. We + * do this by default since many servers are picky about not + * having a FQDN in the anonymous password. + * - thorpej@netbsd.org + */ + len = strlen(anonuser) + 2; + anonpass = xmalloc(len); + (void)strlcpy(anonpass, anonuser, len); + (void)strlcat(anonpass, "@", len); + + /* + * set all the defaults for options defined in + * struct option optiontab[] declared in cmdtab.c + */ + setupoption("anonpass", getenv("FTPANONPASS"), anonpass); + setupoption("ftp_proxy", getenv(FTP_PROXY), ""); + setupoption("http_proxy", getenv(HTTP_PROXY), ""); + setupoption("no_proxy", getenv(NO_PROXY), ""); + setupoption("pager", getenv("PAGER"), DEFAULTPAGER); + setupoption("prompt", getenv("FTPPROMPT"), DEFAULTPROMPT); + setupoption("rprompt", getenv("FTPRPROMPT"), DEFAULTRPROMPT); + + free(anonpass); + + setttywidth(0); +#ifdef SIGINFO + (void)xsignal(SIGINFO, psummary); +#endif + (void)xsignal(SIGQUIT, psummary); + (void)xsignal(SIGUSR1, crankrate); + (void)xsignal(SIGUSR2, crankrate); + (void)xsignal(SIGWINCH, setttywidth); + +#ifdef __GNUC__ /* to shut up gcc warnings */ + (void)&argc; + (void)&argv; +#endif + + if (argc > 0) { + if (isupload) { + rval = auto_put(argc, argv, upload_path); + exit(rval); + } else if (strchr(argv[0], ':') != NULL + && ! isipv6addr(argv[0])) { + rval = auto_fetch(argc, argv); + if (rval >= 0) /* -1 == connected and cd-ed */ + exit(rval); + } else { + char *xargv[4], *user, *host; + + if (sigsetjmp(toplevel, 1)) + exit(0); + (void)xsignal(SIGINT, intr); + (void)xsignal(SIGPIPE, lostpeer); + user = NULL; + host = argv[0]; + cp = strchr(host, '@'); + if (cp) { + *cp = '\0'; + user = host; + host = cp + 1; + } + xargv[0] = __progname; + xargv[1] = host; + xargv[2] = argv[1]; + xargv[3] = NULL; + do { + int oautologin; + + oautologin = autologin; + if (user != NULL) { + anonftp = 0; + autologin = 0; + } + setpeer(argc+1, xargv); + autologin = oautologin; + if (connected == 1 && user != NULL) + (void)ftp_login(host, user, NULL); + if (!retry_connect) + break; + if (!connected) { + macnum = 0; + fprintf(ttyout, + "Retrying in %d seconds...\n", + retry_connect); + sleep(retry_connect); + } + } while (!connected); + retry_connect = 0; /* connected, stop hiding msgs */ + } + } + if (isupload) + usage(); + +#ifndef NO_EDITCOMPLETE + controlediting(); +#endif /* !NO_EDITCOMPLETE */ + + (void)sigsetjmp(toplevel, 1); + (void)xsignal(SIGINT, intr); + (void)xsignal(SIGPIPE, lostpeer); + for (;;) + cmdscanner(); +} + +/* + * Generate a prompt + */ +char * +prompt(void) +{ + static char **prompt; + static char buf[MAXPATHLEN]; + + if (prompt == NULL) { + struct option *o; + + o = getoption("prompt"); + if (o == NULL) + errx(1, "no such option `prompt'"); + prompt = &(o->value); + } + formatbuf(buf, sizeof(buf), *prompt ? *prompt : DEFAULTPROMPT); + return (buf); +} + +/* + * Generate an rprompt + */ +char * +rprompt(void) +{ + static char **rprompt; + static char buf[MAXPATHLEN]; + + if (rprompt == NULL) { + struct option *o; + + o = getoption("rprompt"); + if (o == NULL) + errx(1, "no such option `rprompt'"); + rprompt = &(o->value); + } + formatbuf(buf, sizeof(buf), *rprompt ? *rprompt : DEFAULTRPROMPT); + return (buf); +} + +/* + * Command parser. + */ +void +cmdscanner(void) +{ + struct cmd *c; + char *p; + int num; + + for (;;) { +#ifndef NO_EDITCOMPLETE + if (!editing) { +#endif /* !NO_EDITCOMPLETE */ + if (fromatty) { + fputs(prompt(), ttyout); + p = rprompt(); + if (*p) + fprintf(ttyout, "%s ", p); + (void)fflush(ttyout); + } + if (fgets(line, sizeof(line), stdin) == NULL) { + if (fromatty) + putc('\n', ttyout); + quit(0, NULL); + } + num = strlen(line); + if (num == 0) + break; + if (line[--num] == '\n') { + if (num == 0) + break; + line[num] = '\0'; + } else if (num == sizeof(line) - 2) { + fputs("sorry, input line too long.\n", ttyout); + while ((num = getchar()) != '\n' && num != EOF) + /* void */; + break; + } /* else it was a line without a newline */ +#ifndef NO_EDITCOMPLETE + } else { + const char *buf; + HistEvent ev; + cursor_pos = NULL; + + if ((buf = el_gets(el, &num)) == NULL || num == 0) { + if (fromatty) + putc('\n', ttyout); + quit(0, NULL); + } + if (buf[--num] == '\n') { + if (num == 0) + break; + } else if (num >= sizeof(line)) { + fputs("sorry, input line too long.\n", ttyout); + break; + } + memcpy(line, buf, num); + line[num] = '\0'; + history(hist, &ev, H_ENTER, buf); + } +#endif /* !NO_EDITCOMPLETE */ + + makeargv(); + if (margc == 0) + continue; + c = getcmd(margv[0]); + if (c == (struct cmd *)-1) { + fputs("?Ambiguous command.\n", ttyout); + continue; + } + if (c == NULL) { +#if !defined(NO_EDITCOMPLETE) + /* + * attempt to el_parse() unknown commands. + * any command containing a ':' would be parsed + * as "[prog:]cmd ...", and will result in a + * false positive if prog != "ftp", so treat + * such commands as invalid. + */ + if (strchr(margv[0], ':') != NULL || + el_parse(el, margc, margv) != 0) +#endif /* !NO_EDITCOMPLETE */ + fputs("?Invalid command.\n", ttyout); + continue; + } + if (c->c_conn && !connected) { + fputs("Not connected.\n", ttyout); + continue; + } + confirmrest = 0; + (*c->c_handler)(margc, margv); + if (bell && c->c_bell) + (void)putc('\007', ttyout); + if (c->c_handler != help) + break; + } + (void)xsignal(SIGINT, intr); + (void)xsignal(SIGPIPE, lostpeer); +} + +struct cmd * +getcmd(const char *name) +{ + const char *p, *q; + struct cmd *c, *found; + int nmatches, longest; + + if (name == NULL) + return (0); + + longest = 0; + nmatches = 0; + found = 0; + for (c = cmdtab; (p = c->c_name) != NULL; c++) { + for (q = name; *q == *p++; q++) + if (*q == 0) /* exact match? */ + return (c); + if (!*q) { /* the name was a prefix */ + if (q - name > longest) { + longest = q - name; + nmatches = 1; + found = c; + } else if (q - name == longest) + nmatches++; + } + } + if (nmatches > 1) + return ((struct cmd *)-1); + return (found); +} + +/* + * Slice a string up into argc/argv. + */ + +int slrflag; + +void +makeargv(void) +{ + char *argp; + + stringbase = line; /* scan from first of buffer */ + argbase = argbuf; /* store from first of buffer */ + slrflag = 0; + marg_sl->sl_cur = 0; /* reset to start of marg_sl */ + for (margc = 0; ; margc++) { + argp = slurpstring(); + xsl_add(marg_sl, argp); + if (argp == NULL) + break; + } +#ifndef NO_EDITCOMPLETE + if (cursor_pos == line) { + cursor_argc = 0; + cursor_argo = 0; + } else if (cursor_pos != NULL) { + cursor_argc = margc; + cursor_argo = strlen(margv[margc-1]); + } +#endif /* !NO_EDITCOMPLETE */ +} + +#ifdef NO_EDITCOMPLETE +#define INC_CHKCURSOR(x) (x)++ +#else /* !NO_EDITCOMPLETE */ +#define INC_CHKCURSOR(x) { (x)++ ; \ + if (x == cursor_pos) { \ + cursor_argc = margc; \ + cursor_argo = ap-argbase; \ + cursor_pos = NULL; \ + } } + +#endif /* !NO_EDITCOMPLETE */ + +/* + * Parse string into argbuf; + * implemented with FSM to + * handle quoting and strings + */ +char * +slurpstring(void) +{ + int got_one = 0; + char *sb = stringbase; + char *ap = argbase; + char *tmp = argbase; /* will return this if token found */ + + if (*sb == '!' || *sb == '$') { /* recognize ! as a token for shell */ + switch (slrflag) { /* and $ as token for macro invoke */ + case 0: + slrflag++; + INC_CHKCURSOR(stringbase); + return ((*sb == '!') ? "!" : "$"); + /* NOTREACHED */ + case 1: + slrflag++; + altarg = stringbase; + break; + default: + break; + } + } + +S0: + switch (*sb) { + + case '\0': + goto OUT; + + case ' ': + case '\t': + INC_CHKCURSOR(sb); + goto S0; + + default: + switch (slrflag) { + case 0: + slrflag++; + break; + case 1: + slrflag++; + altarg = sb; + break; + default: + break; + } + goto S1; + } + +S1: + switch (*sb) { + + case ' ': + case '\t': + case '\0': + goto OUT; /* end of token */ + + case '\\': + INC_CHKCURSOR(sb); + goto S2; /* slurp next character */ + + case '"': + INC_CHKCURSOR(sb); + goto S3; /* slurp quoted string */ + + default: + *ap = *sb; /* add character to token */ + ap++; + INC_CHKCURSOR(sb); + got_one = 1; + goto S1; + } + +S2: + switch (*sb) { + + case '\0': + goto OUT; + + default: + *ap = *sb; + ap++; + INC_CHKCURSOR(sb); + got_one = 1; + goto S1; + } + +S3: + switch (*sb) { + + case '\0': + goto OUT; + + case '"': + INC_CHKCURSOR(sb); + goto S1; + + default: + *ap = *sb; + ap++; + INC_CHKCURSOR(sb); + got_one = 1; + goto S3; + } + +OUT: + if (got_one) + *ap++ = '\0'; + argbase = ap; /* update storage pointer */ + stringbase = sb; /* update scan pointer */ + if (got_one) { + return (tmp); + } + switch (slrflag) { + case 0: + slrflag++; + break; + case 1: + slrflag++; + altarg = NULL; + break; + default: + break; + } + return (NULL); +} + +/* + * Help/usage command. + * Call each command handler with argc == 0 and argv[0] == name. + */ +void +help(int argc, char *argv[]) +{ + struct cmd *c; + char *nargv[1], *p, *cmd; + int isusage; + + cmd = argv[0]; + isusage = (strcmp(cmd, "usage") == 0); + if (argc == 0 || (isusage && argc == 1)) { + fprintf(ttyout, "usage: %s [command [...]]\n", cmd); + return; + } + if (argc == 1) { + StringList *buf; + + buf = xsl_init(); + fprintf(ttyout, + "%sommands may be abbreviated. Commands are:\n\n", + proxy ? "Proxy c" : "C"); + for (c = cmdtab; (p = c->c_name) != NULL; c++) + if (!proxy || c->c_proxy) + xsl_add(buf, p); + list_vertical(buf); + sl_free(buf, 0); + return; + } + +#define HELPINDENT ((int) sizeof("disconnect")) + + while (--argc > 0) { + char *arg; + + arg = *++argv; + c = getcmd(arg); + if (c == (struct cmd *)-1) + fprintf(ttyout, "?Ambiguous %s command `%s'\n", + cmd, arg); + else if (c == NULL) + fprintf(ttyout, "?Invalid %s command `%s'\n", + cmd, arg); + else { + if (isusage) { + nargv[0] = arg; + (*c->c_handler)(0, nargv); + } else + fprintf(ttyout, "%-*s\t%s\n", HELPINDENT, + c->c_name, c->c_help); + } + } +} + +struct option * +getoption(const char *name) +{ + const char *p; + struct option *c; + + if (name == NULL) + return (NULL); + for (c = optiontab; (p = c->name) != NULL; c++) { + if (strcasecmp(p, name) == 0) + return (c); + } + return (NULL); +} + +char * +getoptionvalue(const char *name) +{ + struct option *c; + + if (name == NULL) + errx(1, "getoptionvalue() invoked with NULL name"); + c = getoption(name); + if (c != NULL) + return (c->value); + errx(1, "getoptionvalue() invoked with unknown option `%s'", name); + /* NOTREACHED */ +} + +static void +setupoption(char *name, char *value, char *defaultvalue) +{ + char *nargv[3]; + int overbose; + + nargv[0] = "setupoption()"; + nargv[1] = name; + nargv[2] = (value ? value : defaultvalue); + overbose = verbose; + verbose = 0; + setoption(3, nargv); + verbose = overbose; +} + +void +usage(void) +{ + (void)fprintf(stderr, +"usage: %s [-AadefginpRtvV] [-o outfile] [-P port] [-r retry]\n" +" [-T dir,max[,inc][[user@]host [port]]] [host:path[/]]\n" +" [file:///file] [ftp://[user[:pass]@]host[:port]/path[/]]\n" +" [http://[user[:pass]@]host[:port]/path] [...]\n" +" %s -u url file [...]\n", __progname, __progname); + exit(1); +} |