2.11BSD/src/ucb/window/main.c

#if	defined(DOSCCS) && !defined(lint)
static char sccsid[] = "@(#)main.c	3.31 1/1/94";
#endif

/*
 * Copyright (c) 1983 Regents of the University of California,
 * All rights reserved.  Redistribution permitted subject to
 * the terms of the Berkeley Software License Agreement.
 */

#include "defs.h"
#include <sys/signal.h>
#include <stdio.h>
#include "string.h"
#include "char.h"
#include "local.h"
#ifdef pdp11
#include "tt.h"
#endif

#define next(a) (*++*(a) ? *(a) : (*++(a) ? *(a) : (char *)usage()))

/*ARGSUSED*/
main(argc, argv)
char **argv;
{
	register char *p;
	char fflag = 0;
	char dflag = 0;
	char xflag = 0;
	char *cmd = 0;
	char tflag = 0;
#ifdef pdp11
	/* Move some buffers onto the stack to get at the memory */
	/* The program really doesn't fit, but we make a valiant effort */
	char inbuf[BUFSIZ];
	char ww_tbuf[1024], ww_kbuf[256], ww_ibuf[512];
	char tt_sbuf[512], tt_obuf[TTOBSIZ];

	setbuf(stdin, inbuf);
	setbuf(stdout, NULL);
	wwtermcap = ww_tbuf;
	wwkeys = ww_kbuf;
	wwwintermcap = ww_ibuf;
	tt_strings = tt_sbuf;
	tt_ob = tt_obuf;
#endif

	nbufline = NLINE;
	escapec = ESCAPEC;	
	if (p = rindex(*argv, '/'))
		p++;
	else
		p = *argv;
	debug = strcmp(p, "a.out") == 0;
	while (*++argv) {
		if (**argv == '-') {
			switch (*++*argv) {
			case 'f':
				fflag++;
				break;
			case 'c':
				if (cmd != 0) {
					(void) fprintf(stderr,
						"Only one -c allowed.\n");
					(void) usage();
				}
				cmd = next(argv);
				break;
			case 'e':
				setescape(next(argv));
				break;
			case 't':
				tflag++;
				break;
			case 'd':
				dflag++;
				break;
			case 'D':
				debug = !debug;
				break;
			case 'x':
				xflag++;
				break;
			default:
				(void) usage();
			}
		} else
			(void) usage();
	}
	if ((p = getenv("SHELL")) == 0)
		p = SHELL;
	if ((shellfile = str_cpy(p)) == 0)
		nomem();
	if (p = rindex(shellfile, '/'))
		p++;
	else
		p = shellfile;
	shell[0] = p;
	shell[1] = 0;
	(void) gettimeofday(&starttime, (struct timezone *)0);
	if (wwinit() < 0) {
		(void) fprintf(stderr, "%s.\n", wwerror());
		exit(1);
	}
	if (debug)
		wwnewtty.ww_tchars.t_quitc = wwoldtty.ww_tchars.t_quitc;
	if (xflag) {
		wwnewtty.ww_tchars.t_stopc = wwoldtty.ww_tchars.t_stopc;
		wwnewtty.ww_tchars.t_startc = wwoldtty.ww_tchars.t_startc;
	}
	if (debug || xflag)
		(void) wwsettty(0, &wwnewtty, &wwoldtty);

	if ((cmdwin = wwopen(WWO_REVERSE, 1, wwncol, 0, 0, 0)) == 0) {
		(void) wwflush();
		(void) fprintf(stderr, "%s.\r\n", wwerror());
		goto bad;
	}
	cmdwin->ww_mapnl = 1;
	cmdwin->ww_nointr = 1;
	cmdwin->ww_noupdate = 1;
	cmdwin->ww_unctrl = 1;
	if ((framewin = wwopen(WWO_GLASS|WWO_FRAME, wwnrow, wwncol, 0, 0, 0))
	    == 0) {
		(void) wwflush();
		(void) fprintf(stderr, "%s.\r\n", wwerror());
		goto bad;
	}
	wwadd(framewin, &wwhead);
	if ((boxwin = wwopen(WWO_GLASS, wwnrow, wwncol, 0, 0, 0)) == 0) {
		(void) wwflush();
		(void) fprintf(stderr, "%s.\r\n", wwerror());
		goto bad;
	}
	fgwin = framewin;

	wwupdate();
	wwflush();
	(void) signal(SIGCHLD, wwchild);
	setvars();

	setterse(tflag);
	setcmd(1);
	if (cmd != 0)
		(void) dolongcmd(cmd, (struct value *)0, 0);
	if (!fflag) {
		if (dflag || doconfig() < 0)
			dodefault();
		if (selwin != 0)
			setcmd(0);
	}

	mloop();

bad:
	wwend();
	return 0;
}

usage()
{
	(void) fprintf(stderr, "Usage: window [-e escape-char] [-c command] [-t] [-f] [-d]\n");
	exit(1);
	return 0;			/* for lint */
}

nomem()
{
	(void) fprintf(stderr, "Out of memory.\n");
	exit(1);
}