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/*
Copyright (C) 1995-2025 Free Software Foundation, Inc.
This file is part of GNU Inetutils.
GNU Inetutils is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Inetutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see `http://www.gnu.org/licenses/'. */
/*
* Copyright (c) 1983, 1993
* 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. 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.
*/
#include <config.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#include "talk.h"
#include <argp.h>
#include <libinetutils.h>
void usage (void);
/*
* talk: A visual form of write. Using sockets, a two way
* connection is set up between the two people talking.
* With the aid of curses, the screen is split into two
* windows, and each users text is added to the window,
* one character at a time...
*
* Written by Kipp Hickman
*
* Modified to run under 4.1a by Clem Cole and Peter Moore
* Modified to run between hosts by Peter Moore, 8/19/82
* Modified to run under 4.1c by Peter Moore 3/17/83
*/
const char *program_authors[] = {
"Kipp Hickman",
"Clem Cole",
"Peter Moore",
NULL
};
const char doc[] = "Talk to another user.";
const char args_doc[] = "person [ttyname]";
static struct argp argp = { NULL, NULL, args_doc, doc, NULL, NULL, NULL };
int
main (int argc, char *argv[])
{
int index;
set_program_name (argv[0]);
#ifdef HAVE_SETLOCALE
setlocale (LC_ALL, "");
#endif
iu_argp_init ("talk", program_authors);
argp_parse (&argp, argc, argv, 0, &index, NULL);
argc -= index;
argv += index;
if (argc == 0)
{
printf ("Usage: talk user [ttyname]\n");
exit (-1);
}
if (!isatty (0))
{
printf ("Standard input must be a tty, not a pipe, nor a file.\n");
exit (-1);
}
get_names (argc, argv);
/* Let them know we are working on connections. */
current_state = "No connection yet.";
open_ctl ();
open_sockt ();
current_state = "Service connection established.";
start_msgs ();
if (!check_local ())
invite_remote ();
end_msgs ();
/* Our party is responding. Upgrade user interface. */
init_display ();
set_edit_chars ();
talk ();
}
static const char usage_str[] =
"Usage: talk [OPTIONS...] USER\n"
"\n"
"Options are:\n"
" --help Display usage instructions\n"
" --version Display program version\n";
void
usage (void)
{
printf ("%s\n" "Send bug reports to <%s>.\n", usage_str, PACKAGE_BUGREPORT);
}
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