1 /* $NetBSD: wwopen.c,v 1.12 2003/08/07 11:17:42 agc Exp $ */
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
38 static char sccsid[] = "@(#)wwopen.c 8.2 (Berkeley) 4/28/95";
40 __RCSID("$NetBSD: wwopen.c,v 1.12 2003/08/07 11:17:42 agc Exp $");
44 #include <sys/types.h>
45 #include <sys/socket.h>
52 wwopen(int type, int oflags, int nrow, int ncol, int row, int col, int nline)
59 w = (struct ww *)calloc(1, sizeof (struct ww));
67 for (i = 0; i < NWW && wwindex[i] != 0; i++)
70 wwerrno = WWE_TOOMANY;
79 w->ww_w.b = row + nrow;
81 w->ww_w.r = col + ncol;
86 w->ww_b.b = row + nline;
88 w->ww_b.r = col + ncol;
92 w->ww_i.t = MAX(w->ww_w.t, 0);
93 w->ww_i.b = MIN(w->ww_w.b, wwnrow);
94 w->ww_i.l = MAX(w->ww_w.l, 0);
95 w->ww_i.r = MIN(w->ww_w.r, wwncol);
96 w->ww_i.nr = w->ww_i.b - w->ww_i.t;
97 w->ww_i.nc = w->ww_i.r - w->ww_i.l;
99 w->ww_cur.r = w->ww_w.t;
100 w->ww_cur.c = w->ww_w.l;
111 if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) {
115 (void) fcntl(d[0], F_SETFD, 1);
116 (void) fcntl(d[1], F_SETFD, 1);
122 if (type != WWT_INTERNAL) {
123 if ((w->ww_ob = malloc(512)) == 0) {
127 w->ww_obe = w->ww_ob + 512;
128 w->ww_obp = w->ww_obq = w->ww_ob;
129 if (w->ww_pty >= wwdtablesize)
130 wwdtablesize = w->ww_pty + 1;
133 w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
134 w->ww_w.nr, w->ww_w.nc, sizeof (char));
138 if (oflags & WWO_GLASS)
140 if (oflags & WWO_REVERSE) {
141 if (wwavailmodes & WWM_REV)
143 else oflags &= ~WWO_REVERSE;
145 for (i = w->ww_w.t; i < w->ww_w.b; i++)
146 for (j = w->ww_w.l; j < w->ww_w.r; j++)
149 if (oflags & WWO_FRAME) {
150 w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
151 w->ww_w.nr, w->ww_w.nc, sizeof (char));
154 for (i = w->ww_w.t; i < w->ww_w.b; i++)
155 for (j = w->ww_w.l; j < w->ww_w.r; j++)
156 w->ww_fmap[i][j] = 0;
159 w->ww_buf = (union ww_char **)
160 wwalloc(w->ww_b.t, w->ww_b.l,
161 w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
164 for (i = w->ww_b.t; i < w->ww_b.b; i++)
165 for (j = w->ww_b.l; j < w->ww_b.r; j++)
166 w->ww_buf[i][j].c_w = ' ';
168 w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short));
169 if (w->ww_nvis == 0) {
173 w->ww_nvis -= w->ww_w.t;
174 nvis = m ? 0 : w->ww_w.nc;
175 for (i = w->ww_w.t; i < w->ww_w.b; i++)
176 w->ww_nvis[i] = nvis;
178 w->ww_state = WWS_INITIAL;
179 CLR(w->ww_oflags, WWO_ALLFLAGS);
180 SET(w->ww_oflags, oflags);
181 return wwindex[w->ww_index] = w;
185 wwfree(w->ww_win, w->ww_w.t);
187 wwfree(w->ww_fmap, w->ww_w.t);
189 wwfree((char **)w->ww_buf, w->ww_b.t);
191 free((char *)(w->ww_nvis + w->ww_w.t));
195 (void) close(w->ww_pty);
196 if (w->ww_socket >= 0)
197 (void) close(w->ww_socket);