17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
23*ace1a5f1Sdp * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bd9Sstevel@tonic-gate * The Regents of the University of California
337c478bd9Sstevel@tonic-gate * All Rights Reserved
347c478bd9Sstevel@tonic-gate *
357c478bd9Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
367c478bd9Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
377c478bd9Sstevel@tonic-gate * contributors.
387c478bd9Sstevel@tonic-gate */
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate /*
417c478bd9Sstevel@tonic-gate * this file contains the I/O handling and the exchange of
427c478bd9Sstevel@tonic-gate * edit characters. This connection itself is established in ctl.c
437c478bd9Sstevel@tonic-gate */
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate #include "talk.h"
467c478bd9Sstevel@tonic-gate #include <stdio.h>
477c478bd9Sstevel@tonic-gate #include <errno.h>
487c478bd9Sstevel@tonic-gate #include <sys/time.h>
497c478bd9Sstevel@tonic-gate #include <sys/filio.h>
507c478bd9Sstevel@tonic-gate #include <libintl.h>
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate #define A_LONG_TIME 10000000
537c478bd9Sstevel@tonic-gate #define STDIN_MASK (1<<fileno(stdin)) /* the bit mask for standard input */
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate /*
567c478bd9Sstevel@tonic-gate * The routine to do the actual talking
577c478bd9Sstevel@tonic-gate */
587c478bd9Sstevel@tonic-gate
597c478bd9Sstevel@tonic-gate void
talk()607c478bd9Sstevel@tonic-gate talk()
617c478bd9Sstevel@tonic-gate {
62*ace1a5f1Sdp int read_template, sockt_mask;
637c478bd9Sstevel@tonic-gate int read_set, nb;
647c478bd9Sstevel@tonic-gate char buf[BUFSIZ];
657c478bd9Sstevel@tonic-gate struct timeval wait;
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate message(gettext("Connection established"));
687c478bd9Sstevel@tonic-gate beep(); beep(); beep();
697c478bd9Sstevel@tonic-gate current_line = 0;
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate sockt_mask = (1<<sockt);
727c478bd9Sstevel@tonic-gate
737c478bd9Sstevel@tonic-gate /*
747c478bd9Sstevel@tonic-gate * wait on both the other process (sockt_mask) and
757c478bd9Sstevel@tonic-gate * standard input ( STDIN_MASK )
767c478bd9Sstevel@tonic-gate */
777c478bd9Sstevel@tonic-gate
787c478bd9Sstevel@tonic-gate read_template = sockt_mask | STDIN_MASK;
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate forever {
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate read_set = read_template;
837c478bd9Sstevel@tonic-gate
847c478bd9Sstevel@tonic-gate wait.tv_sec = A_LONG_TIME;
857c478bd9Sstevel@tonic-gate wait.tv_usec = 0;
867c478bd9Sstevel@tonic-gate
877c478bd9Sstevel@tonic-gate nb = select(32, (fd_set *)&read_set, 0, 0, &wait);
887c478bd9Sstevel@tonic-gate
897c478bd9Sstevel@tonic-gate if (nb <= 0) {
907c478bd9Sstevel@tonic-gate
917c478bd9Sstevel@tonic-gate /* We may be returning from an interrupt handler */
927c478bd9Sstevel@tonic-gate
937c478bd9Sstevel@tonic-gate if (errno == EINTR) {
947c478bd9Sstevel@tonic-gate read_set = read_template;
957c478bd9Sstevel@tonic-gate continue;
967c478bd9Sstevel@tonic-gate } else {
977c478bd9Sstevel@tonic-gate /* panic, we don't know what happened */
987c478bd9Sstevel@tonic-gate p_error(
997c478bd9Sstevel@tonic-gate gettext("Unexpected error from select"));
1007c478bd9Sstevel@tonic-gate quit();
1017c478bd9Sstevel@tonic-gate }
1027c478bd9Sstevel@tonic-gate }
1037c478bd9Sstevel@tonic-gate
1047c478bd9Sstevel@tonic-gate if (read_set & sockt_mask) {
1057c478bd9Sstevel@tonic-gate
1067c478bd9Sstevel@tonic-gate /* There is data on sockt */
1077c478bd9Sstevel@tonic-gate nb = read(sockt, buf, sizeof (buf));
1087c478bd9Sstevel@tonic-gate
1097c478bd9Sstevel@tonic-gate if (nb <= 0) {
1107c478bd9Sstevel@tonic-gate message(gettext("Connection closed. Exiting"));
1117c478bd9Sstevel@tonic-gate pause(); /* wait for Ctrl-C */
1127c478bd9Sstevel@tonic-gate quit();
1137c478bd9Sstevel@tonic-gate } else {
1147c478bd9Sstevel@tonic-gate display(&rem_win, buf, nb);
1157c478bd9Sstevel@tonic-gate }
1167c478bd9Sstevel@tonic-gate }
1177c478bd9Sstevel@tonic-gate
1187c478bd9Sstevel@tonic-gate if (read_set & STDIN_MASK) {
1197c478bd9Sstevel@tonic-gate
120*ace1a5f1Sdp /*
121*ace1a5f1Sdp * we can't make the tty non_blocking, because
122*ace1a5f1Sdp * curses's output routines would screw up
123*ace1a5f1Sdp */
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate ioctl(0, FIONREAD, (struct sgttyb *)&nb);
1267c478bd9Sstevel@tonic-gate nb = read(0, buf, nb);
1277c478bd9Sstevel@tonic-gate display(&my_win, buf, nb);
1287c478bd9Sstevel@tonic-gate write(sockt, buf, nb);
1297c478bd9Sstevel@tonic-gate
130*ace1a5f1Sdp /*
131*ace1a5f1Sdp * We might lose data here because sockt is
132*ace1a5f1Sdp * non-blocking
133*ace1a5f1Sdp */
1347c478bd9Sstevel@tonic-gate }
1357c478bd9Sstevel@tonic-gate }
1367c478bd9Sstevel@tonic-gate }
1377c478bd9Sstevel@tonic-gate
1387c478bd9Sstevel@tonic-gate
139*ace1a5f1Sdp /*
140*ace1a5f1Sdp * p_error prints the system error message on the standard location
141*ace1a5f1Sdp * on the screen and then exits. (i.e. a curses version of perror)
142*ace1a5f1Sdp */
1437c478bd9Sstevel@tonic-gate
1447c478bd9Sstevel@tonic-gate void
p_error(char * string)145*ace1a5f1Sdp p_error(char *string)
1467c478bd9Sstevel@tonic-gate {
1477c478bd9Sstevel@tonic-gate wmove(my_win.x_win, current_line%my_win.x_nlines, 0);
148*ace1a5f1Sdp wprintw(my_win.x_win, "[%s : %s]\n", string, strerror(errno));
1497c478bd9Sstevel@tonic-gate wrefresh(my_win.x_win);
1507c478bd9Sstevel@tonic-gate move(LINES-1, 0);
1517c478bd9Sstevel@tonic-gate refresh();
1527c478bd9Sstevel@tonic-gate quit();
1537c478bd9Sstevel@tonic-gate }
1547c478bd9Sstevel@tonic-gate
155*ace1a5f1Sdp /* display string in the standard location */
1567c478bd9Sstevel@tonic-gate
1577c478bd9Sstevel@tonic-gate void
message(char * string)158*ace1a5f1Sdp message(char *string)
1597c478bd9Sstevel@tonic-gate {
1607c478bd9Sstevel@tonic-gate wmove(my_win.x_win, current_line%my_win.x_nlines, 0);
1617c478bd9Sstevel@tonic-gate wprintw(my_win.x_win, "[%s]\n", string);
1627c478bd9Sstevel@tonic-gate wrefresh(my_win.x_win);
1637c478bd9Sstevel@tonic-gate }
164