871 lines
20 KiB
C
871 lines
20 KiB
C
/* $NetBSD: main.c,v 1.64 1999/10/13 02:47:54 lukem Exp $ */
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/*-
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* Copyright (c) 1996-1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1985, 1989, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (C) 1997 and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1985, 1989, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 10/9/94";
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#else
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__RCSID("$NetBSD: main.c,v 1.64 1999/10/13 02:47:54 lukem Exp $");
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#endif
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#endif /* not lint */
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/*
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* FTP User Program -- Command Interface.
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <err.h>
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#include <errno.h>
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#include <netdb.h>
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#include <paths.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define GLOBAL /* force GLOBAL decls in ftp_var.h to be declared */
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#include "ftp_var.h"
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#define FTP_PROXY "ftp_proxy" /* env var with FTP proxy location */
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#define HTTP_PROXY "http_proxy" /* env var with HTTP proxy location */
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#define NO_PROXY "no_proxy" /* env var with list of non-proxied
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* hosts, comma or space separated */
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int main __P((int, char **));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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int ch, rval;
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struct passwd *pw = NULL;
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char *cp, *ep;
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int dumbterm, s, len;
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ftpport = "ftp";
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httpport = "http";
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ftpproxy = getenv(FTP_PROXY);
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httpproxy = getenv(HTTP_PROXY);
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no_proxy = getenv(NO_PROXY);
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gateport = NULL;
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cp = getenv("FTPSERVERPORT");
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if (cp != NULL)
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gateport = cp;
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else
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gateport = "ftpgate";
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doglob = 1;
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interactive = 1;
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autologin = 1;
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passivemode = 1;
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activefallback = 1;
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preserve = 1;
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verbose = 0;
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progress = 0;
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gatemode = 0;
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data = -1;
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outfile = NULL;
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restartautofetch = 0;
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#ifndef NO_EDITCOMPLETE
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editing = 0;
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el = NULL;
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hist = NULL;
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#endif
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bytes = 0;
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mark = HASHBYTES;
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rate_get = 0;
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rate_get_incr = DEFAULTINCR;
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rate_put = 0;
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rate_put_incr = DEFAULTINCR;
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#ifdef INET6
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epsv4 = 1;
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#else
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epsv4 = 0;
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#endif
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epsv4bad = 0;
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/*
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* Get the default socket buffer sizes if we don't already have them.
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* It doesn't matter which socket we do this to, because on the first
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* call no socket buffer sizes will have been modified, so we are
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* guaranteed to get the system defaults.
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*/
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s = socket(AF_INET, SOCK_STREAM, 0);
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if (s == -1)
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err(1, "can't create socket");
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len = sizeof(rcvbuf_size);
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if (getsockopt(s, SOL_SOCKET, SO_RCVBUF, (void *) &rcvbuf_size, &len)
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< 0)
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err(1, "unable to get default rcvbuf size");
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len = sizeof(sndbuf_size);
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if (getsockopt(s, SOL_SOCKET, SO_SNDBUF, (void *) &sndbuf_size, &len)
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< 0)
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err(1, "unable to get default sndbuf size");
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(void)close(s);
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/* sanity check returned buffer sizes */
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if (rcvbuf_size <= 0)
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rcvbuf_size = 8192;
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if (sndbuf_size <= 0)
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sndbuf_size = 8192;
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marg_sl = sl_init();
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if ((tmpdir = getenv("TMPDIR")) == NULL)
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tmpdir = _PATH_TMP;
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/* Set default operation mode based on FTPMODE environment variable */
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if ((cp = getenv("FTPMODE")) != NULL) {
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if (strcmp(cp, "passive") == 0) {
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passivemode = 1;
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activefallback = 0;
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} else if (strcmp(cp, "active") == 0) {
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passivemode = 0;
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activefallback = 0;
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} else if (strcmp(cp, "gate") == 0) {
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gatemode = 1;
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} else if (strcmp(cp, "auto") == 0) {
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passivemode = 1;
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activefallback = 1;
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} else
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warnx("unknown $FTPMODE '%s'; using defaults", cp);
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}
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if (strcmp(__progname, "pftp") == 0) {
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passivemode = 1;
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activefallback = 0;
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} else if (strcmp(__progname, "gate-ftp") == 0)
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gatemode = 1;
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gateserver = getenv("FTPSERVER");
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if (gateserver == NULL || *gateserver == '\0')
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gateserver = GATE_SERVER;
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if (gatemode) {
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if (*gateserver == '\0') {
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warnx(
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"Neither $FTPSERVER nor GATE_SERVER is defined; disabling gate-ftp");
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gatemode = 0;
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}
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}
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cp = getenv("TERM");
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if (cp == NULL || strcmp(cp, "dumb") == 0)
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dumbterm = 1;
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else
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dumbterm = 0;
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fromatty = isatty(fileno(stdin));
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ttyout = stdout;
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if (isatty(fileno(ttyout))) {
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verbose = 1; /* verbose if to a tty */
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if (! dumbterm) {
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#ifndef NO_EDITCOMPLETE
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if (fromatty) /* editing mode on if tty is usable */
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editing = 1;
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#endif
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#ifndef NO_PROGRESS
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if (foregroundproc())
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progress = 1; /* progress bar on if fg */
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#endif
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}
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}
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while ((ch = getopt(argc, argv, "Aadefgino:pP:r:RtT:vV")) != -1) {
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switch (ch) {
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case 'A':
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activefallback = 0;
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passivemode = 0;
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break;
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case 'a':
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anonftp = 1;
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break;
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case 'd':
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options |= SO_DEBUG;
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debug++;
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break;
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case 'e':
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#ifndef NO_EDITCOMPLETE
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editing = 0;
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#endif
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break;
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case 'f':
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flushcache = 1;
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break;
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case 'g':
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doglob = 0;
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break;
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case 'i':
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interactive = 0;
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break;
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case 'n':
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autologin = 0;
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break;
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case 'o':
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outfile = optarg;
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if (strcmp(outfile, "-") == 0)
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ttyout = stderr;
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break;
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case 'p':
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passivemode = 1;
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activefallback = 0;
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break;
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case 'P':
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ftpport = optarg;
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break;
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case 'r':
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retry_connect = strtol(optarg, &ep, 10);
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if (retry_connect < 1 || *ep != '\0')
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errx(1, "bad retry value: %s", optarg);
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break;
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case 'R':
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restartautofetch = 1;
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break;
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case 't':
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trace = 1;
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break;
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case 'T':
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{
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int targc;
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char *targv[6], *oac;
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/* look for `dir,max[,incr]' */
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targc = 0;
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targv[targc++] = "-T";
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oac = xstrdup(optarg);
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while ((cp = strsep(&oac, ",")) != NULL) {
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if (*cp == '\0') {
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warnx("bad throttle value: %s", optarg);
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usage();
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/* NOTREACHED */
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}
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targv[targc++] = cp;
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if (targc >= 5)
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break;
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}
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if (parserate(targc, targv, 1) == -1)
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usage();
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free(oac);
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break;
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}
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case 'v':
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progress = verbose = 1;
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break;
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case 'V':
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progress = verbose = 0;
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break;
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default:
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usage();
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}
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}
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/* set line buffering on ttyout */
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setvbuf(ttyout, NULL, _IOLBF, 0);
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argc -= optind;
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argv += optind;
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cpend = 0; /* no pending replies */
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proxy = 0; /* proxy not active */
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crflag = 1; /* strip c.r. on ascii gets */
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sendport = -1; /* not using ports */
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/*
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* Set up the home directory in case we're globbing.
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*/
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cp = getlogin();
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if (cp != NULL) {
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pw = getpwnam(cp);
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}
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if (pw == NULL)
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pw = getpwuid(getuid());
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if (pw != NULL)
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(void)strlcpy(home, pw->pw_dir, sizeof(home));
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else
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(void)strlcpy(home, "/", sizeof(home));
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setttywidth(0);
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#ifdef SIGINFO
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(void)xsignal(SIGINFO, psummary);
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#endif
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(void)xsignal(SIGQUIT, psummary);
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(void)xsignal(SIGUSR1, crankrate);
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(void)xsignal(SIGUSR2, crankrate);
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(void)xsignal(SIGWINCH, setttywidth);
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#ifdef __GNUC__ /* to shut up gcc warnings */
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(void)&argc;
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(void)&argv;
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#endif
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if (argc > 0) {
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if (strchr(argv[0], ':') != NULL && ! isipv6addr(argv[0])) {
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rval = auto_fetch(argc, argv);
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if (rval >= 0) /* -1 == connected and cd-ed */
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exit(rval);
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} else {
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char *xargv[5];
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if (sigsetjmp(toplevel, 1))
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exit(0);
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(void)xsignal(SIGINT, intr);
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(void)xsignal(SIGPIPE, (sig_t)lostpeer);
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xargv[0] = __progname;
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xargv[1] = argv[0];
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xargv[2] = argv[1];
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xargv[3] = argv[2];
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xargv[4] = NULL;
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do {
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setpeer(argc+1, xargv);
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if (!retry_connect)
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break;
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if (!connected) {
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macnum = 0;
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fprintf(ttyout,
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"Retrying in %d seconds...\n",
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retry_connect);
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sleep(retry_connect);
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}
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} while (!connected);
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retry_connect = 0; /* connected, stop hiding msgs */
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}
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}
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#ifndef NO_EDITCOMPLETE
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controlediting();
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#endif /* !NO_EDITCOMPLETE */
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(void)sigsetjmp(toplevel, 1);
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(void)xsignal(SIGINT, intr);
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(void)xsignal(SIGPIPE, (sig_t)lostpeer);
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for (;;)
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cmdscanner();
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}
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void
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intr(dummy)
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int dummy;
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{
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alarmtimer(0);
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if (fromatty)
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write(fileno(ttyout), "\n", 1);
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siglongjmp(toplevel, 1);
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}
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void
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lostpeer()
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{
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int oerrno = errno;
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alarmtimer(0);
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if (connected) {
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if (cout != NULL) {
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(void)shutdown(fileno(cout), 1+1);
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(void)fclose(cout);
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cout = NULL;
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}
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if (data >= 0) {
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(void)shutdown(data, 1+1);
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(void)close(data);
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data = -1;
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}
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connected = 0;
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}
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pswitch(1);
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if (connected) {
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if (cout != NULL) {
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(void)shutdown(fileno(cout), 1+1);
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(void)fclose(cout);
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cout = NULL;
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}
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connected = 0;
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}
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proxflag = 0;
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pswitch(0);
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errno = oerrno;
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}
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/*
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* Generate a prompt
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*/
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char *
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prompt()
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{
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return ("ftp> ");
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}
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/*
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* Command parser.
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*/
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void
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cmdscanner()
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{
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struct cmd *c;
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int num;
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for (;;) {
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#ifndef NO_EDITCOMPLETE
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if (!editing) {
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#endif /* !NO_EDITCOMPLETE */
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if (fromatty) {
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fputs(prompt(), ttyout);
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(void)fflush(ttyout);
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}
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if (fgets(line, sizeof(line), stdin) == NULL) {
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if (fromatty)
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putc('\n', ttyout);
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quit(0, 0);
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}
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num = strlen(line);
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if (num == 0)
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break;
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if (line[--num] == '\n') {
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if (num == 0)
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break;
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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, 0);
|
|
}
|
|
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, (sig_t)lostpeer);
|
|
}
|
|
|
|
struct cmd *
|
|
getcmd(name)
|
|
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()
|
|
{
|
|
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();
|
|
sl_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()
|
|
{
|
|
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 command.
|
|
* Call each command handler with argc == 0 and argv[0] == name.
|
|
*/
|
|
void
|
|
help(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
struct cmd *c;
|
|
|
|
if (argc == 1) {
|
|
StringList *buf;
|
|
|
|
buf = sl_init();
|
|
fprintf(ttyout,
|
|
"%sommands may be abbreviated. Commands are:\n\n",
|
|
proxy ? "Proxy c" : "C");
|
|
for (c = cmdtab; c < &cmdtab[NCMDS]; c++)
|
|
if (c->c_name && (!proxy || c->c_proxy))
|
|
sl_add(buf, c->c_name);
|
|
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 help command %s\n", arg);
|
|
else if (c == NULL)
|
|
fprintf(ttyout, "?Invalid help command %s\n", arg);
|
|
else
|
|
fprintf(ttyout, "%-*s\t%s\n", HELPINDENT,
|
|
c->c_name, c->c_help);
|
|
}
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr,
|
|
"usage: %s [-AadefginpRtvV] [-r retry] [-o outfile] [-P port] [-T dir,max[,inc]\n"
|
|
" [host [port]] [file:///file] [ftp://[user[:pass]@]host[:port]/path[/]]\n"
|
|
" [http://[user[:pass]@]host[:port]/path] [host:path[/]]\n", __progname);
|
|
exit(1);
|
|
}
|