usr.bin/window/ttinit.c

   1 /*      $NetBSD: ttinit.c,v 1.8 2003/08/13 15:13:46 itojun Exp $        */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Edward Wang at The University of California, Berkeley.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)ttinit.c    8.1 (Berkeley) 6/6/93";
  39 #else
  40 __RCSID("$NetBSD: ttinit.c,v 1.8 2003/08/13 15:13:46 itojun Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include "ww.h"
  47 #include "tt.h"
  48
  49 struct tt tt;
  50 char tt_strings[1024];          /* string buffer */
  51 char *tt_strp;                  /* pointer for it */
  52 char *tt_ob;
  53 char *tt_obp;
  54 char *tt_obe;
  55
  56 struct tt_tab tt_tab[] = {
  57         { "h19",        3, tt_h19 },
  58         { "h29",        3, tt_h29 },
  59         { "f100",       4, tt_f100 },
  60         { "tvi925",     6, tt_tvi925 },
  61         { "wyse75",     6, tt_wyse75 },
  62         { "wyse60",     6, tt_wyse60 },
  63         { "w60",        3, tt_wyse60 },
  64         { "zapple",     6, tt_zapple },
  65         { "zentec",     6, tt_zentec },
  66         { "generic",    0, tt_generic },
  67         { 0,            0, 0 }
  68 };
  69
  70 int
  71 ttinit(void)
  72 {
  73         int i;
  74         struct tt_tab *tp;
  75         char *p, *q;
  76         char *t;
  77
  78         tt_strp = tt_strings;
  79
  80         /*
  81          * Set output buffer size to about 1 second of output time.
  82          */
  83         i = MIN(wwbaud/10, 512);
  84         if ((tt_ob = malloc((unsigned) i)) == 0) {
  85                 wwerrno = WWE_NOMEM;
  86                 return -1;
  87         }
  88         tt_obp = tt_ob;
  89         tt_obe = tt_ob + i;
  90
  91         /*
  92          * Use the standard name of the terminal (i.e. the second
  93          * name in termcap).
  94          */
  95         for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
  96                 ;
  97         if (*p == '|')
  98                 p++;
  99         for (q = p; *q && *q != '|' && *q != ':'; q++)
 100                 ;
 101         if (q != p && (t = malloc((unsigned) (q - p + 1))) != 0) {
 102                 wwterm = t;
 103                 while (p < q)
 104                         *t++ = *p++;
 105                 *t = 0;
 106         }
 107         for (tp = tt_tab; tp->tt_name != 0; tp++)
 108                 if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
 109                         break;
 110         if (tp->tt_name == 0) {
 111                 wwerrno = WWE_BADTERM;
 112                 return -1;
 113         }
 114         if ((*tp->tt_func)() < 0) {
 115                 wwerrno = WWE_CANTDO;
 116                 return -1;
 117         }
 118         if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
 119                 return -1;
 120         tt.tt_scroll_top = 0;
 121         tt.tt_scroll_bot = tt.tt_nrow - 1;
 122         return 0;
 123 }