1296465Sdelphij/* $NetBSD: wwopen.c,v 1.11 2002/08/12 02:44:18 itojun Exp $ */ 2110010Smarkm 3110010Smarkm/* 4142429Snectar * Copyright (c) 1983, 1993 5110010Smarkm * The Regents of the University of California. All rights reserved. 6110010Smarkm * 7110010Smarkm * This code is derived from software contributed to Berkeley by 8110010Smarkm * Edward Wang at The University of California, Berkeley. 9110010Smarkm * 10110010Smarkm * Redistribution and use in source and binary forms, with or without 11110010Smarkm * modification, are permitted provided that the following conditions 12110010Smarkm * are met: 13110010Smarkm * 1. Redistributions of source code must retain the above copyright 14110010Smarkm * notice, this list of conditions and the following disclaimer. 15110010Smarkm * 2. Redistributions in binary form must reproduce the above copyright 16110010Smarkm * notice, this list of conditions and the following disclaimer in the 17110010Smarkm * documentation and/or other materials provided with the distribution. 18110010Smarkm * 3. Neither the name of the University nor the names of its contributors 19110010Smarkm * may be used to endorse or promote products derived from this software 20215698Ssimon * without specific prior written permission. 21215698Ssimon * 22215698Ssimon * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23215698Ssimon * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24215698Ssimon * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25110010Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26110010Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27110010Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28110010Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29110010Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30110010Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31110010Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32110010Smarkm * SUCH DAMAGE. 33110010Smarkm */ 34110010Smarkm 35110010Smarkm#include <sys/cdefs.h> 36110010Smarkm#ifndef lint 37110010Smarkm#if 0 38110010Smarkmstatic char sccsid[] = "@(#)wwopen.c 8.2 (Berkeley) 4/28/95"; 39110010Smarkm#else 40110010Smarkm__RCSID("$NetBSD: wwopen.c,v 1.11 2002/08/12 02:44:18 itojun Exp $"); 41279265Sdelphij#endif 42279265Sdelphij#endif /* not lint */ 43110010Smarkm 44110010Smarkm#include <sys/types.h> 45215698Ssimon#include <sys/socket.h> 46215698Ssimon#include <fcntl.h> 47215698Ssimon#include <stdlib.h> 48215698Ssimon#include <unistd.h> 49142429Snectar#include "ww.h" 50215698Ssimon 51142429Snectarstruct ww * 52142429Snectarwwopen(int type, int oflags, int nrow, int ncol, int row, int col, int nline) 53279265Sdelphij{ 54279265Sdelphij struct ww *w; 55279265Sdelphij int i, j; 56110010Smarkm char m; 57279265Sdelphij short nvis; 58279265Sdelphij 59279265Sdelphij w = (struct ww *)calloc(1, sizeof (struct ww)); 60279265Sdelphij if (w == 0) { 61279265Sdelphij wwerrno = WWE_NOMEM; 62279265Sdelphij goto bad; 63215698Ssimon } 64279265Sdelphij w->ww_pty = -1; 65279265Sdelphij w->ww_socket = -1; 66279265Sdelphij 67279265Sdelphij for (i = 0; i < NWW && wwindex[i] != 0; i++) 68279265Sdelphij ; 69215698Ssimon if (i >= NWW) { 70279265Sdelphij wwerrno = WWE_TOOMANY; 71110010Smarkm goto bad; 72110010Smarkm } 73110010Smarkm w->ww_index = i; 74110010Smarkm 75110010Smarkm if (nline < nrow) 76110010Smarkm nline = nrow; 77110010Smarkm 78110010Smarkm w->ww_w.t = row; 79110010Smarkm w->ww_w.b = row + nrow; 80110010Smarkm w->ww_w.l = col; 81110010Smarkm w->ww_w.r = col + ncol; 82110010Smarkm w->ww_w.nr = nrow; 83110010Smarkm w->ww_w.nc = ncol; 84110010Smarkm 85110010Smarkm w->ww_b.t = row; 86110010Smarkm w->ww_b.b = row + nline; 87110010Smarkm w->ww_b.l = col; 88110010Smarkm w->ww_b.r = col + ncol; 89110010Smarkm w->ww_b.nr = nline; 90110010Smarkm w->ww_b.nc = ncol; 91110010Smarkm 92110010Smarkm w->ww_i.t = MAX(w->ww_w.t, 0); 93110010Smarkm w->ww_i.b = MIN(w->ww_w.b, wwnrow); 94110010Smarkm w->ww_i.l = MAX(w->ww_w.l, 0); 95110010Smarkm w->ww_i.r = MIN(w->ww_w.r, wwncol); 96110010Smarkm w->ww_i.nr = w->ww_i.b - w->ww_i.t; 97110010Smarkm w->ww_i.nc = w->ww_i.r - w->ww_i.l; 98110010Smarkm 99110010Smarkm w->ww_cur.r = w->ww_w.t; 100110010Smarkm w->ww_cur.c = w->ww_w.l; 101110010Smarkm 102110010Smarkm w->ww_type = type; 103110010Smarkm switch (type) { 104110010Smarkm case WWT_PTY: 105110010Smarkm if (wwgetpty(w) < 0) 106110010Smarkm goto bad; 107110010Smarkm break; 108110010Smarkm case WWT_SOCKET: 109110010Smarkm { 110110010Smarkm int d[2]; 111110010Smarkm if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) { 112110010Smarkm wwerrno = WWE_SYS; 113110010Smarkm goto bad; 114110010Smarkm } 115110010Smarkm (void) fcntl(d[0], F_SETFD, 1); 116110010Smarkm (void) fcntl(d[1], F_SETFD, 1); 117110010Smarkm w->ww_pty = d[0]; 118110010Smarkm w->ww_socket = d[1]; 119110010Smarkm break; 120110010Smarkm } 121110010Smarkm } 122110010Smarkm if (type != WWT_INTERNAL) { 123110010Smarkm if ((w->ww_ob = malloc(512)) == 0) { 124110010Smarkm wwerrno = WWE_NOMEM; 125110010Smarkm goto bad; 126110010Smarkm } 127110010Smarkm w->ww_obe = w->ww_ob + 512; 128110010Smarkm w->ww_obp = w->ww_obq = w->ww_ob; 129110010Smarkm if (w->ww_pty >= wwdtablesize) 130110010Smarkm wwdtablesize = w->ww_pty + 1; 131110010Smarkm } 132110010Smarkm 133142429Snectar w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l, 134110010Smarkm w->ww_w.nr, w->ww_w.nc, sizeof (char)); 135110655Snectar if (w->ww_win == 0) 136296465Sdelphij goto bad; 137215698Ssimon m = 0; 138215698Ssimon if (oflags & WWO_GLASS) 139215698Ssimon m |= WWM_GLS; 140215698Ssimon if (oflags & WWO_REVERSE) { 141110010Smarkm if (wwavailmodes & WWM_REV) 142110010Smarkm m |= WWM_REV; 143110010Smarkm else oflags &= ~WWO_REVERSE; 144110010Smarkm } 145110010Smarkm for (i = w->ww_w.t; i < w->ww_w.b; i++) 146110010Smarkm for (j = w->ww_w.l; j < w->ww_w.r; j++) 147110010Smarkm w->ww_win[i][j] = m; 148110010Smarkm 149110010Smarkm if (oflags & WWO_FRAME) { 150110010Smarkm w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l, 151110010Smarkm w->ww_w.nr, w->ww_w.nc, sizeof (char)); 152110010Smarkm if (w->ww_fmap == 0) 153160819Ssimon goto bad; 154110010Smarkm for (i = w->ww_w.t; i < w->ww_w.b; i++) 155110010Smarkm for (j = w->ww_w.l; j < w->ww_w.r; j++) 156110010Smarkm w->ww_fmap[i][j] = 0; 157194208Ssimon } 158110010Smarkm 159110010Smarkm w->ww_buf = (union ww_char **) 160110010Smarkm wwalloc(w->ww_b.t, w->ww_b.l, 161110010Smarkm w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char)); 162110010Smarkm if (w->ww_buf == 0) 163110010Smarkm goto bad; 164110010Smarkm for (i = w->ww_b.t; i < w->ww_b.b; i++) 165110010Smarkm for (j = w->ww_b.l; j < w->ww_b.r; j++) 166110010Smarkm w->ww_buf[i][j].c_w = ' '; 167110010Smarkm 168110010Smarkm w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short)); 169110010Smarkm if (w->ww_nvis == 0) { 170142429Snectar wwerrno = WWE_NOMEM; 171110010Smarkm goto bad; 172110010Smarkm } 173110010Smarkm w->ww_nvis -= w->ww_w.t; 174142429Snectar nvis = m ? 0 : w->ww_w.nc; 175110010Smarkm for (i = w->ww_w.t; i < w->ww_w.b; i++) 176110010Smarkm w->ww_nvis[i] = nvis; 177142429Snectar 178110010Smarkm w->ww_state = WWS_INITIAL; 179110010Smarkm CLR(w->ww_oflags, WWO_ALLFLAGS); 180110010Smarkm SET(w->ww_oflags, oflags); 181142429Snectar return wwindex[w->ww_index] = w; 182110010Smarkmbad: 183110010Smarkm if (w != 0) { 184142429Snectar if (w->ww_win != 0) 185110010Smarkm wwfree(w->ww_win, w->ww_w.t); 186110010Smarkm if (w->ww_fmap != 0) 187142429Snectar wwfree(w->ww_fmap, w->ww_w.t); 188110010Smarkm if (w->ww_buf != 0) 189110010Smarkm wwfree((char **)w->ww_buf, w->ww_b.t); 190160819Ssimon if (w->ww_nvis != 0) 191160819Ssimon free((char *)(w->ww_nvis + w->ww_w.t)); 192160819Ssimon if (w->ww_ob != 0) 193279265Sdelphij free(w->ww_ob); 194142429Snectar if (w->ww_pty >= 0) 195110010Smarkm (void) close(w->ww_pty); 196237998Sjkim if (w->ww_socket >= 0) 197279265Sdelphij (void) close(w->ww_socket); 198142429Snectar free((char *)w); 199110010Smarkm } 200110010Smarkm return 0; 201142429Snectar} 202110010Smarkm