usr.bin/window/main.c

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Edward Wang at The University of California, Berkeley.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#) Copyright (c) 1983, 1993 The Regents of the University of California.  All rights reserved.
  37  * @(#)main.c   8.2 (Berkeley) 4/2/94
  38  * $FreeBSD: src/usr.bin/window/main.c,v 1.5.6.2 2001/05/17 09:45:00 obrien Exp $
  39  * $DragonFly: src/usr.bin/window/main.c,v 1.3 2004/08/30 20:06:50 eirikn Exp $
  40  */
  41
  42 #include "defs.h"
  43 #include <paths.h>
  44 #include <locale.h>
  45 #include <stdio.h>
  46 #include <string.h> /* System string definitions. */
  47 #include "mystring.h" /* Local string definitions. */
  48 #include "char.h"
  49 #include "local.h"
  50
  51 #define next(a) (*++*(a) ? *(a) : (*++(a) ? *(a) : (char *)usage()))
  52
  53 /*ARGSUSED*/
  54 main(argc, argv)
  55 char **argv;
  56 {
  57         register char *p;
  58         char fflag = 0;
  59         char dflag = 0;
  60         char xflag = 0;
  61         char *cmd = 0;
  62         char tflag = 0;
  63
  64         escapec = ESCAPEC;
  65         if (p = strrchr(*argv, '/'))
  66                 p++;
  67         else
  68                 p = *argv;
  69         debug = strcmp(p, "a.out") == 0;
  70         while (*++argv) {
  71                 if (**argv == '-') {
  72                         switch (*++*argv) {
  73                         case 'f':
  74                                 fflag++;
  75                                 break;
  76                         case 'c':
  77                                 if (cmd != 0) {
  78                                         (void) fprintf(stderr,
  79                                                 "Only one -c allowed.\n");
  80                                         (void) usage();
  81                                 }
  82                                 cmd = next(argv);
  83                                 break;
  84                         case 'e':
  85                                 setescape(next(argv));
  86                                 break;
  87                         case 't':
  88                                 tflag++;
  89                                 break;
  90                         case 'd':
  91                                 dflag++;
  92                                 break;
  93                         case 'D':
  94                                 debug = !debug;
  95                                 break;
  96                         case 'x':
  97                                 xflag++;
  98                                 break;
  99                         default:
 100                                 (void) usage();
 101                         }
 102                 } else
 103                         (void) usage();
 104         }
 105         if ((p = getenv("SHELL")) == 0)
 106                 p = _PATH_BSHELL;
 107         if ((default_shellfile = str_cpy(p)) == 0) {
 108                 (void) fprintf(stderr, "Out of memory.\n");
 109                 exit(1);
 110         }
 111         if (p = strrchr(default_shellfile, '/'))
 112                 p++;
 113         else
 114                 p = default_shellfile;
 115         default_shell[0] = p;
 116         default_shell[1] = 0;
 117         default_nline = NLINE;
 118         default_smooth = 1;
 119         (void) gettimeofday(&starttime, (struct timezone *)0);
 120         (void) setlocale(LC_CTYPE, "");
 121         if (wwinit() < 0) {
 122                 (void) fprintf(stderr, "%s.\n", wwerror());
 123                 exit(1);
 124         }
 125
 126 #ifdef OLD_TTY
 127         if (debug)
 128                 wwnewtty.ww_tchars.t_quitc = wwoldtty.ww_tchars.t_quitc;
 129         if (xflag) {
 130                 wwnewtty.ww_tchars.t_stopc = wwoldtty.ww_tchars.t_stopc;
 131                 wwnewtty.ww_tchars.t_startc = wwoldtty.ww_tchars.t_startc;
 132         }
 133 #else
 134         if (debug) {
 135                 wwnewtty.ww_termios.c_cc[VQUIT] =
 136                         wwoldtty.ww_termios.c_cc[VQUIT];
 137                 wwnewtty.ww_termios.c_lflag |= ISIG;
 138         }
 139         if (xflag) {
 140                 wwnewtty.ww_termios.c_cc[VSTOP] =
 141                         wwoldtty.ww_termios.c_cc[VSTOP];
 142                 wwnewtty.ww_termios.c_cc[VSTART] =
 143                         wwoldtty.ww_termios.c_cc[VSTART];
 144                 wwnewtty.ww_termios.c_iflag |= IXON;
 145         }
 146 #endif
 147         if (debug || xflag)
 148                 (void) wwsettty(0, &wwnewtty);
 149
 150         if ((cmdwin = wwopen(wwbaud > 2400 ? WWO_REVERSE : 0, 1, wwncol,
 151                              0, 0, 0)) == 0) {
 152                 wwflush();
 153                 (void) fprintf(stderr, "%s.\r\n", wwerror());
 154                 goto bad;
 155         }
 156         cmdwin->ww_mapnl = 1;
 157         cmdwin->ww_nointr = 1;
 158         cmdwin->ww_noupdate = 1;
 159         cmdwin->ww_unctrl = 1;
 160         if ((framewin = wwopen(WWO_GLASS|WWO_FRAME, wwnrow, wwncol, 0, 0, 0))
 161             == 0) {
 162                 wwflush();
 163                 (void) fprintf(stderr, "%s.\r\n", wwerror());
 164                 goto bad;
 165         }
 166         wwadd(framewin, &wwhead);
 167         if ((boxwin = wwopen(WWO_GLASS, wwnrow, wwncol, 0, 0, 0)) == 0) {
 168                 wwflush();
 169                 (void) fprintf(stderr, "%s.\r\n", wwerror());
 170                 goto bad;
 171         }
 172         fgwin = framewin;
 173
 174         wwupdate();
 175         wwflush();
 176         setvars();
 177
 178         setterse(tflag);
 179         setcmd(1);
 180         if (cmd != 0)
 181                 (void) dolongcmd(cmd, (struct value *)0, 0);
 182         if (!fflag)
 183                 if (dflag || doconfig() < 0)
 184                         dodefault();
 185         if (selwin != 0)
 186                 setcmd(0);
 187
 188         mloop();
 189
 190 bad:
 191         wwend(1);
 192         return 0;
 193 }
 194
 195 usage()
 196 {
 197         (void) fprintf(stderr, "usage: window [-e escape-char] [-c command] [-t] [-f] [-d]\n");
 198         exit(1);
 199         return 0;                       /* for lint */
 200 }