/*      @(#)main.c      8.2 (Berkeley) 4/2/94   */
/*      $NetBSD: main.c,v 1.15 2009/04/14 08:50:06 lukem 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 <err.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "defs.h"
#include "window_string.h"
#include "char.h"
#include "local.h"

static void     usage(void) __dead2;

int
main(int argc, char **argv)
{
        char *p;
        const char *kp;
        char fflag = 0;
        char dflag = 0;
        char xflag = 0;
        char *cmd = NULL;
        char tflag = 0;
        int ch;

        escapec = ESCAPEC;
        debug = strcmp(getprogname(), "a.out") == 0;
        while ((ch = getopt(argc, argv, "fc:e:tdDx")) != -1) {
                switch (ch) {
                case 'f':
                        fflag++;
                        break;
                case 'c':
                        if (cmd != NULL) {
                                warnx("Only one -c allowed");
                                usage();
                        }
                        cmd = optarg;
                        break;
                case 'e':
                        setescape(optarg);
                        break;
                case 't':
                        tflag++;
                        break;
                case 'd':
                        dflag++;
                        break;
                case 'D':
                        debug = !debug;
                        break;
                case 'x':
                        xflag++;
                        break;
                default:
                        usage();
                }
        }
        if ((kp = getenv("SHELL")) == NULL)
                kp = _PATH_BSHELL;
        if ((default_shellfile = str_cpy(kp)) == 0)
                errx(1, "Out of memory.");
        if ((p = strrchr(default_shellfile, '/')))
                p++;
        else
                p = default_shellfile;
        default_shell[0] = p;
        default_shell[1] = 0;
        default_nline = NLINE;
        default_smooth = 1;
        (void) gettimeofday(&starttime, (struct timezone *)0);
        if (wwinit() < 0)
                errx(1, "%s", wwerror());

#ifdef OLD_TTY
        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;
        }
#else
        if (debug) {
                wwnewtty.ww_termios.c_cc[VQUIT] =
                        wwoldtty.ww_termios.c_cc[VQUIT];
                wwnewtty.ww_termios.c_lflag |= ISIG;
        }
        if (xflag) {
                wwnewtty.ww_termios.c_cc[VSTOP] =
                        wwoldtty.ww_termios.c_cc[VSTOP];
                wwnewtty.ww_termios.c_cc[VSTART] =
                        wwoldtty.ww_termios.c_cc[VSTART];
                wwnewtty.ww_termios.c_iflag |= IXON;
        }
#endif
        if (debug || xflag)
                (void) wwsettty(0, &wwnewtty);

        if ((cmdwin = wwopen(WWT_INTERNAL, wwbaud > 2400 ? WWO_REVERSE : 0, 1,
                             wwncol, 0, 0, 0)) == 0) {
                wwflush();
                warnx("%s.\r", wwerror());
                goto bad;
        }
        SET(cmdwin->ww_wflags,
            WWW_MAPNL | WWW_NOINTR | WWW_NOUPDATE | WWW_UNCTRL);
        if ((framewin = wwopen(WWT_INTERNAL, WWO_GLASS|WWO_FRAME, wwnrow,
                               wwncol, 0, 0, 0)) == 0) {
                wwflush();
                warnx("%s.\r", wwerror());
                goto bad;
        }
        wwadd(framewin, &wwhead);
        if ((boxwin = wwopen(WWT_INTERNAL, WWO_GLASS, wwnrow, wwncol, 0, 0, 0))
            == 0) {
                wwflush();
                warnx("%s.\r", wwerror());
                goto bad;
        }
        fgwin = framewin;

        wwupdate();
        wwflush();
        setvars();

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

        mloop();

bad:
        wwend(1);
        return 0;
}

static void
usage(void)
{
        (void) fprintf(stderr,
            "usage: %s [-dft] [-c command] [-e escape-char]\n",
            getprogname());
        exit(1);
}