2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 static char sccsid[] = "@(#)wwopen.c 8.1 (Berkeley) 6/6/93";
42 #include <sys/types.h>
43 #include <sys/socket.h>
48 wwopen(flags, nrow, ncol, row, col, nline)
50 register struct ww *w;
55 w = (struct ww *)calloc(sizeof (struct ww), 1);
63 for (i = 0; i < NWW && wwindex[i] != 0; i++)
66 wwerrno = WWE_TOOMANY;
75 w->ww_w.b = row + nrow;
77 w->ww_w.r = col + ncol;
82 w->ww_b.b = row + nline;
84 w->ww_b.r = col + ncol;
88 w->ww_i.t = MAX(w->ww_w.t, 0);
89 w->ww_i.b = MIN(w->ww_w.b, wwnrow);
90 w->ww_i.l = MAX(w->ww_w.l, 0);
91 w->ww_i.r = MIN(w->ww_w.r, wwncol);
92 w->ww_i.nr = w->ww_i.b - w->ww_i.t;
93 w->ww_i.nc = w->ww_i.r - w->ww_i.l;
95 w->ww_cur.r = w->ww_w.t;
96 w->ww_cur.c = w->ww_w.l;
98 if (flags & WWO_PTY) {
102 } else if (flags & WWO_SOCKET) {
104 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, d) < 0) {
108 (void) fcntl(d[0], F_SETFD, 1);
109 (void) fcntl(d[1], F_SETFD, 1);
113 if (flags & (WWO_PTY|WWO_SOCKET)) {
114 if ((w->ww_ob = malloc(512)) == 0) {
118 w->ww_obe = w->ww_ob + 512;
119 w->ww_obp = w->ww_obq = w->ww_ob;
122 w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
123 w->ww_w.nr, w->ww_w.nc, sizeof (char));
127 if (flags & WWO_GLASS)
129 if (flags & WWO_REVERSE)
130 if (wwavailmodes & WWM_REV)
133 flags &= ~WWO_REVERSE;
134 for (i = w->ww_w.t; i < w->ww_w.b; i++)
135 for (j = w->ww_w.l; j < w->ww_w.r; j++)
138 if (flags & WWO_FRAME) {
139 w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
140 w->ww_w.nr, w->ww_w.nc, sizeof (char));
143 for (i = w->ww_w.t; i < w->ww_w.b; i++)
144 for (j = w->ww_w.l; j < w->ww_w.r; j++)
145 w->ww_fmap[i][j] = 0;
148 w->ww_buf = (union ww_char **)
149 wwalloc(w->ww_b.t, w->ww_b.l,
150 w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
153 for (i = w->ww_b.t; i < w->ww_b.b; i++)
154 for (j = w->ww_b.l; j < w->ww_b.r; j++)
155 w->ww_buf[i][j].c_w = ' ';
157 w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short));
158 if (w->ww_nvis == 0) {
162 w->ww_nvis -= w->ww_w.t;
163 nvis = m ? 0 : w->ww_w.nc;
164 for (i = w->ww_w.t; i < w->ww_w.b; i++)
165 w->ww_nvis[i] = nvis;
167 w->ww_state = WWS_INITIAL;
168 w->ww_oflags = flags;
169 return wwindex[w->ww_index] = w;
173 wwfree(w->ww_win, w->ww_w.t);
175 wwfree(w->ww_fmap, w->ww_w.t);
177 wwfree((char **)w->ww_buf, w->ww_b.t);
179 free((char *)(w->ww_nvis + w->ww_w.t));
183 (void) close(w->ww_pty);
184 if (w->ww_socket >= 0)
185 (void) close(w->ww_socket);