[dragonfly.git] / usr.bin / window / wwopen.c

/*	@(#)wwopen.c	8.2 (Berkeley) 4/28/95	*/
/*	$NetBSD: wwopen.c,v 1.12 2003/08/07 11:17:42 agc Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Edward Wang at The University of California, Berkeley.
 *
 * 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 <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "ww.h"

struct ww *
wwopen(int type, int oflags, int nrow, int ncol, int row, int col, int nline)
{
	struct ww *w;
	int i, j;
	char m;
	short nvis;

	w = (struct ww *)calloc(1, sizeof (struct ww));
	if (w == 0) {
		wwerrno = WWE_NOMEM;
		goto bad;
	}
	w->ww_pty = -1;
	w->ww_socket = -1;

	for (i = 0; i < NWW && wwindex[i] != 0; i++)
		;
	if (i >= NWW) {
		wwerrno = WWE_TOOMANY;
		goto bad;
	}
	w->ww_index = i;

	if (nline < nrow)
		nline = nrow;

	w->ww_w.t = row;
	w->ww_w.b = row + nrow;
	w->ww_w.l = col;
	w->ww_w.r = col + ncol;
	w->ww_w.nr = nrow;
	w->ww_w.nc = ncol;

	w->ww_b.t = row;
	w->ww_b.b = row + nline;
	w->ww_b.l = col;
	w->ww_b.r = col + ncol;
	w->ww_b.nr = nline;
	w->ww_b.nc = ncol;

	w->ww_i.t = MAX(w->ww_w.t, 0);
	w->ww_i.b = MIN(w->ww_w.b, wwnrow);
	w->ww_i.l = MAX(w->ww_w.l, 0);
	w->ww_i.r = MIN(w->ww_w.r, wwncol);
	w->ww_i.nr = w->ww_i.b - w->ww_i.t;
	w->ww_i.nc = w->ww_i.r - w->ww_i.l;

	w->ww_cur.r = w->ww_w.t;
	w->ww_cur.c = w->ww_w.l;

	w->ww_type = type;
	switch (type) {
	case WWT_PTY:
		if (wwgetpty(w) < 0)
			goto bad;
		break;
	case WWT_SOCKET:
	    {
		int d[2];
		if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) {
			wwerrno = WWE_SYS;
			goto bad;
		}
		(void) fcntl(d[0], F_SETFD, 1);
		(void) fcntl(d[1], F_SETFD, 1);
		w->ww_pty = d[0];
		w->ww_socket = d[1];
		break;
	    }
	}
	if (type != WWT_INTERNAL) {
		if ((w->ww_ob = malloc(512)) == 0) {
			wwerrno = WWE_NOMEM;
			goto bad;
		}
		w->ww_obe = w->ww_ob + 512;
		w->ww_obp = w->ww_obq = w->ww_ob;
		if (w->ww_pty >= wwdtablesize)
			wwdtablesize = w->ww_pty + 1;
	}

	w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
		w->ww_w.nr, w->ww_w.nc, sizeof (char));
	if (w->ww_win == 0)
		goto bad;
	m = 0;
	if (oflags & WWO_GLASS)
		m |= WWM_GLS;
	if (oflags & WWO_REVERSE) {
		if (wwavailmodes & WWM_REV)
			m |= WWM_REV;
		else	oflags &= ~WWO_REVERSE;
	}
	for (i = w->ww_w.t; i < w->ww_w.b; i++)
		for (j = w->ww_w.l; j < w->ww_w.r; j++)
			w->ww_win[i][j] = m;

	if (oflags & WWO_FRAME) {
		w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
			w->ww_w.nr, w->ww_w.nc, sizeof (char));
		if (w->ww_fmap == 0)
			goto bad;
		for (i = w->ww_w.t; i < w->ww_w.b; i++)
			for (j = w->ww_w.l; j < w->ww_w.r; j++)
				w->ww_fmap[i][j] = 0;
	}

	w->ww_buf = (union ww_char **)
		wwalloc(w->ww_b.t, w->ww_b.l,
			w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
	if (w->ww_buf == 0)
		goto bad;
	for (i = w->ww_b.t; i < w->ww_b.b; i++)
		for (j = w->ww_b.l; j < w->ww_b.r; j++)
			w->ww_buf[i][j].c_w = ' ';

	w->ww_nvis = (short *)malloc((unsigned) w->ww_w.nr * sizeof (short));
	if (w->ww_nvis == 0) {
		wwerrno = WWE_NOMEM;
		goto bad;
	}
	w->ww_nvis -= w->ww_w.t;
	nvis = m ? 0 : w->ww_w.nc;
	for (i = w->ww_w.t; i < w->ww_w.b; i++)
		w->ww_nvis[i] = nvis;

	w->ww_state = WWS_INITIAL;
	CLR(w->ww_oflags, WWO_ALLFLAGS);
	SET(w->ww_oflags, oflags);
	return wwindex[w->ww_index] = w;
bad:
	if (w != 0) {
		if (w->ww_win != 0)
			wwfree(w->ww_win, w->ww_w.t);
		if (w->ww_fmap != 0)
			wwfree(w->ww_fmap, w->ww_w.t);
		if (w->ww_buf != 0)
			wwfree((char **)w->ww_buf, w->ww_b.t);
		if (w->ww_nvis != 0)
			free((char *)(w->ww_nvis + w->ww_w.t));
		if (w->ww_ob != 0)
			free(w->ww_ob);
		if (w->ww_pty >= 0)
			(void) close(w->ww_pty);
		if (w->ww_socket >= 0)
			(void) close(w->ww_socket);
		free((char *)w);
	}
	return 0;
}
Commit	Line	Data
2c872e05	1	/* @(#)wwopen.c 8.2 (Berkeley) 4/28/95 */
abecab39 SW	2	/* $NetBSD: wwopen.c,v 1.12 2003/08/07 11:17:42 agc Exp $ */
abecab39 SW	3
984263bc MD	4	/*
	5	* Copyright (c) 1983, 1993
	6	* The Regents of the University of California. All rights reserved.
	7	*
	8	* This code is derived from software contributed to Berkeley by
	9	* Edward Wang at The University of California, Berkeley.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice, this list of conditions and the following disclaimer.
	16	* 2. Redistributions in binary form must reproduce the above copyright
	17	* notice, this list of conditions and the following disclaimer in the
	18	* documentation and/or other materials provided with the distribution.
abecab39	19	* 3. Neither the name of the University nor the names of its contributors
984263bc MD	20	* may be used to endorse or promote products derived from this software
	21	* without specific prior written permission.
	22	*
	23	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	* SUCH DAMAGE.
	34	*/
	35
984263bc MD	36	#include <sys/types.h>
	37	#include <sys/socket.h>
	38	#include <fcntl.h>
	39	#include <stdlib.h>
abecab39 SW	40	#include <unistd.h>
abecab39 SW	41	#include "ww.h"
984263bc MD	42
984263bc MD	43	struct ww *
abecab39	44	wwopen(int type, int oflags, int nrow, int ncol, int row, int col, int nline)
984263bc	45	{
abecab39 SW	46	struct ww *w;
abecab39 SW	47	int i, j;
984263bc MD	48	char m;
	49	short nvis;
	50
abecab39	51	w = (struct ww *)calloc(1, sizeof (struct ww));
984263bc MD	52	if (w == 0) {
	53	wwerrno = WWE_NOMEM;
	54	goto bad;
	55	}
	56	w->ww_pty = -1;
	57	w->ww_socket = -1;
	58
	59	for (i = 0; i < NWW && wwindex[i] != 0; i++)
	60	;
	61	if (i >= NWW) {
	62	wwerrno = WWE_TOOMANY;
	63	goto bad;
	64	}
	65	w->ww_index = i;
	66
	67	if (nline < nrow)
	68	nline = nrow;
	69
	70	w->ww_w.t = row;
	71	w->ww_w.b = row + nrow;
	72	w->ww_w.l = col;
	73	w->ww_w.r = col + ncol;
	74	w->ww_w.nr = nrow;
	75	w->ww_w.nc = ncol;
	76
	77	w->ww_b.t = row;
	78	w->ww_b.b = row + nline;
	79	w->ww_b.l = col;
	80	w->ww_b.r = col + ncol;
	81	w->ww_b.nr = nline;
	82	w->ww_b.nc = ncol;
	83
	84	w->ww_i.t = MAX(w->ww_w.t, 0);
	85	w->ww_i.b = MIN(w->ww_w.b, wwnrow);
	86	w->ww_i.l = MAX(w->ww_w.l, 0);
	87	w->ww_i.r = MIN(w->ww_w.r, wwncol);
	88	w->ww_i.nr = w->ww_i.b - w->ww_i.t;
	89	w->ww_i.nc = w->ww_i.r - w->ww_i.l;
	90
	91	w->ww_cur.r = w->ww_w.t;
	92	w->ww_cur.c = w->ww_w.l;
	93
abecab39 SW	94	w->ww_type = type;
	95	switch (type) {
	96	case WWT_PTY:
984263bc MD	97	if (wwgetpty(w) < 0)
984263bc MD	98	goto bad;
abecab39 SW	99	break;
	100	case WWT_SOCKET:
	101	{
984263bc	102	int d[2];
abecab39	103	if (socketpair(AF_LOCAL, SOCK_STREAM, PF_UNSPEC, d) < 0) {
984263bc MD	104	wwerrno = WWE_SYS;
	105	goto bad;
	106	}
	107	(void) fcntl(d[0], F_SETFD, 1);
	108	(void) fcntl(d[1], F_SETFD, 1);
	109	w->ww_pty = d[0];
	110	w->ww_socket = d[1];
abecab39 SW	111	break;
abecab39 SW	112	}
984263bc	113	}
abecab39	114	if (type != WWT_INTERNAL) {
984263bc MD	115	if ((w->ww_ob = malloc(512)) == 0) {
	116	wwerrno = WWE_NOMEM;
	117	goto bad;
	118	}
	119	w->ww_obe = w->ww_ob + 512;
	120	w->ww_obp = w->ww_obq = w->ww_ob;
abecab39 SW	121	if (w->ww_pty >= wwdtablesize)
abecab39 SW	122	wwdtablesize = w->ww_pty + 1;
984263bc MD	123	}
	124
	125	w->ww_win = wwalloc(w->ww_w.t, w->ww_w.l,
	126	w->ww_w.nr, w->ww_w.nc, sizeof (char));
	127	if (w->ww_win == 0)
	128	goto bad;
	129	m = 0;
abecab39	130	if (oflags & WWO_GLASS)
984263bc	131	m \|= WWM_GLS;
abecab39	132	if (oflags & WWO_REVERSE) {
984263bc MD	133	if (wwavailmodes & WWM_REV)
984263bc MD	134	m \|= WWM_REV;
abecab39 SW	135	else oflags &= ~WWO_REVERSE;
abecab39 SW	136	}
984263bc MD	137	for (i = w->ww_w.t; i < w->ww_w.b; i++)
	138	for (j = w->ww_w.l; j < w->ww_w.r; j++)
	139	w->ww_win[i][j] = m;
	140
abecab39	141	if (oflags & WWO_FRAME) {
984263bc MD	142	w->ww_fmap = wwalloc(w->ww_w.t, w->ww_w.l,
	143	w->ww_w.nr, w->ww_w.nc, sizeof (char));
	144	if (w->ww_fmap == 0)
	145	goto bad;
	146	for (i = w->ww_w.t; i < w->ww_w.b; i++)
	147	for (j = w->ww_w.l; j < w->ww_w.r; j++)
	148	w->ww_fmap[i][j] = 0;
	149	}
	150
	151	w->ww_buf = (union ww_char **)
	152	wwalloc(w->ww_b.t, w->ww_b.l,
	153	w->ww_b.nr, w->ww_b.nc, sizeof (union ww_char));
	154	if (w->ww_buf == 0)
	155	goto bad;
	156	for (i = w->ww_b.t; i < w->ww_b.b; i++)
	157	for (j = w->ww_b.l; j < w->ww_b.r; j++)
	158	w->ww_buf[i][j].c_w = ' ';
	159
	160	w->ww_nvis = (short )malloc((unsigned) w->ww_w.nr sizeof (short));
	161	if (w->ww_nvis == 0) {
	162	wwerrno = WWE_NOMEM;
	163	goto bad;
	164	}
	165	w->ww_nvis -= w->ww_w.t;
	166	nvis = m ? 0 : w->ww_w.nc;
	167	for (i = w->ww_w.t; i < w->ww_w.b; i++)
	168	w->ww_nvis[i] = nvis;
	169
	170	w->ww_state = WWS_INITIAL;
abecab39 SW	171	CLR(w->ww_oflags, WWO_ALLFLAGS);
abecab39 SW	172	SET(w->ww_oflags, oflags);
984263bc MD	173	return wwindex[w->ww_index] = w;
	174	bad:
	175	if (w != 0) {
	176	if (w->ww_win != 0)
	177	wwfree(w->ww_win, w->ww_w.t);
	178	if (w->ww_fmap != 0)
	179	wwfree(w->ww_fmap, w->ww_w.t);
	180	if (w->ww_buf != 0)
	181	wwfree((char **)w->ww_buf, w->ww_b.t);
	182	if (w->ww_nvis != 0)
	183	free((char *)(w->ww_nvis + w->ww_w.t));
	184	if (w->ww_ob != 0)
	185	free(w->ww_ob);
	186	if (w->ww_pty >= 0)
	187	(void) close(w->ww_pty);
	188	if (w->ww_socket >= 0)
	189	(void) close(w->ww_socket);
	190	free((char *)w);
	191	}
	192	return 0;
	193	}