usr.bin/window/main.c

   1 /*      @(#)main.c      8.2 (Berkeley) 4/2/94   */
   2 /*      $NetBSD: main.c,v 1.15 2009/04/14 08:50:06 lukem Exp $  */
   3
   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.
  19  * 3. Neither the name of the University nor the names of its contributors
  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
  36 #include <err.h>
  37 #include <paths.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42
  43 #include "defs.h"
  44 #include "window_string.h"
  45 #include "char.h"
  46 #include "local.h"
  47
  48 static void     usage(void) __dead2;
  49
  50 int
  51 main(int argc, char **argv)
  52 {
  53         char *p;
  54         const char *kp;
  55         char fflag = 0;
  56         char dflag = 0;
  57         char xflag = 0;
  58         char *cmd = NULL;
  59         char tflag = 0;
  60         int ch;
  61
  62         escapec = ESCAPEC;
  63         debug = strcmp(getprogname(), "a.out") == 0;
  64         while ((ch = getopt(argc, argv, "fc:e:tdDx")) != -1) {
  65                 switch (ch) {
  66                 case 'f':
  67                         fflag++;
  68                         break;
  69                 case 'c':
  70                         if (cmd != NULL) {
  71                                 warnx("Only one -c allowed");
  72                                 usage();
  73                         }
  74                         cmd = optarg;
  75                         break;
  76                 case 'e':
  77                         setescape(optarg);
  78                         break;
  79                 case 't':
  80                         tflag++;
  81                         break;
  82                 case 'd':
  83                         dflag++;
  84                         break;
  85                 case 'D':
  86                         debug = !debug;
  87                         break;
  88                 case 'x':
  89                         xflag++;
  90                         break;
  91                 default:
  92                         usage();
  93                 }
  94         }
  95         if ((kp = getenv("SHELL")) == NULL)
  96                 kp = _PATH_BSHELL;
  97         if ((default_shellfile = str_cpy(kp)) == 0)
  98                 errx(1, "Out of memory.");
  99         if ((p = strrchr(default_shellfile, '/')))
 100                 p++;
 101         else
 102                 p = default_shellfile;
 103         default_shell[0] = p;
 104         default_shell[1] = 0;
 105         default_nline = NLINE;
 106         default_smooth = 1;
 107         (void) gettimeofday(&starttime, (struct timezone *)0);
 108         if (wwinit() < 0)
 109                 errx(1, "%s", wwerror());
 110
 111 #ifdef OLD_TTY
 112         if (debug)
 113                 wwnewtty.ww_tchars.t_quitc = wwoldtty.ww_tchars.t_quitc;
 114         if (xflag) {
 115                 wwnewtty.ww_tchars.t_stopc = wwoldtty.ww_tchars.t_stopc;
 116                 wwnewtty.ww_tchars.t_startc = wwoldtty.ww_tchars.t_startc;
 117         }
 118 #else
 119         if (debug) {
 120                 wwnewtty.ww_termios.c_cc[VQUIT] =
 121                         wwoldtty.ww_termios.c_cc[VQUIT];
 122                 wwnewtty.ww_termios.c_lflag |= ISIG;
 123         }
 124         if (xflag) {
 125                 wwnewtty.ww_termios.c_cc[VSTOP] =
 126                         wwoldtty.ww_termios.c_cc[VSTOP];
 127                 wwnewtty.ww_termios.c_cc[VSTART] =
 128                         wwoldtty.ww_termios.c_cc[VSTART];
 129                 wwnewtty.ww_termios.c_iflag |= IXON;
 130         }
 131 #endif
 132         if (debug || xflag)
 133                 (void) wwsettty(0, &wwnewtty);
 134
 135         if ((cmdwin = wwopen(WWT_INTERNAL, wwbaud > 2400 ? WWO_REVERSE : 0, 1,
 136                              wwncol, 0, 0, 0)) == 0) {
 137                 wwflush();
 138                 warnx("%s.\r", wwerror());
 139                 goto bad;
 140         }
 141         SET(cmdwin->ww_wflags,
 142             WWW_MAPNL | WWW_NOINTR | WWW_NOUPDATE | WWW_UNCTRL);
 143         if ((framewin = wwopen(WWT_INTERNAL, WWO_GLASS|WWO_FRAME, wwnrow,
 144                                wwncol, 0, 0, 0)) == 0) {
 145                 wwflush();
 146                 warnx("%s.\r", wwerror());
 147                 goto bad;
 148         }
 149         wwadd(framewin, &wwhead);
 150         if ((boxwin = wwopen(WWT_INTERNAL, WWO_GLASS, wwnrow, wwncol, 0, 0, 0))
 151             == 0) {
 152                 wwflush();
 153                 warnx("%s.\r", wwerror());
 154                 goto bad;
 155         }
 156         fgwin = framewin;
 157
 158         wwupdate();
 159         wwflush();
 160         setvars();
 161
 162         setterse(tflag);
 163         setcmd(1);
 164         if (cmd != NULL)
 165                 (void) dolongcmd(cmd, (struct value *)0, 0);
 166         if (!fflag)
 167                 if (dflag || doconfig() < 0)
 168                         dodefault();
 169         if (selwin != 0)
 170                 setcmd(0);
 171
 172         mloop();
 173
 174 bad:
 175         wwend(1);
 176         return 0;
 177 }
 178
 179 static void
 180 usage(void)
 181 {
 182         (void) fprintf(stderr,
 183             "usage: %s [-dft] [-c command] [-e escape-char]\n",
 184             getprogname());
 185         exit(1);
 186 }