BSD 4_3_Net_2 release

[unix-history] / usr / src / usr.bin / window / main.c

/*
* Copyright (c) 1983 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. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. 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.
*/

#ifndef lint
static char sccsid[] = "@(#)main.c      3.42 (Berkeley) 8/12/90";
#endif /* not lint */

#include "defs.h"
#include <paths.h>
#include <stdio.h>
#include "string.h"
#include "char.h"
#include "local.h"

#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;

       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 = _PATH_BSHELL;
       if ((default_shellfile = str_cpy(p)) == 0) {
               (void) fprintf(stderr, "Out of memory.\n");
               exit(1);
       }
       if (p = rindex(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) {
               (void) fprintf(stderr, "%s.\n", wwerror());
               exit(1);
       }

#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(wwbaud > 2400 ? WWO_REVERSE : 0, 1, wwncol,
                            0, 0, 0)) == 0) {
               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) {
               wwflush();
               (void) fprintf(stderr, "%s.\r\n", wwerror());
               goto bad;
       }
       wwadd(framewin, &wwhead);
       if ((boxwin = wwopen(WWO_GLASS, wwnrow, wwncol, 0, 0, 0)) == 0) {
               wwflush();
               (void) fprintf(stderr, "%s.\r\n", wwerror());
               goto bad;
       }
       fgwin = framewin;

       wwupdate();
       wwflush();
       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 */
}