usr.bin/window/ttinit.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  * @(#)ttinit.c 8.1 (Berkeley) 6/6/93
  37  * $FreeBSD: src/usr.bin/window/ttinit.c,v 1.2.12.1 2001/05/17 09:45:01 obrien Exp $
  38  * $DragonFly: src/usr.bin/window/ttinit.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
  39  */
  40
  41 #include "ww.h"
  42 #include "tt.h"
  43 #include <stdlib.h>
  44
  45 int tt_h19();
  46 int tt_h29();
  47 int tt_f100();
  48 int tt_tvi925();
  49 int tt_wyse75();
  50 int tt_wyse60();
  51 int tt_zapple();
  52 int tt_zentec();
  53 int tt_generic();
  54 struct tt_tab tt_tab[] = {
  55         { "h19",        3, tt_h19 },
  56         { "h29",        3, tt_h29 },
  57         { "f100",       4, tt_f100 },
  58         { "tvi925",     6, tt_tvi925 },
  59         { "wyse75",     6, tt_wyse75 },
  60         { "wyse60",     6, tt_wyse60 },
  61         { "w60",        3, tt_wyse60 },
  62         { "zapple",     6, tt_zapple },
  63         { "zentec",     6, tt_zentec },
  64         { "generic",    0, tt_generic },
  65         0
  66 };
  67
  68 ttinit()
  69 {
  70         int i;
  71         register struct tt_tab *tp;
  72         register char *p, *q;
  73         register char *t;
  74
  75         tt_strp = tt_strings;
  76
  77         /*
  78          * Set output buffer size to about 1 second of output time.
  79          */
  80         i = MIN(wwbaud/10, 512);
  81         if ((tt_ob = malloc((unsigned) i)) == 0) {
  82                 wwerrno = WWE_NOMEM;
  83                 return -1;
  84         }
  85         tt_obp = tt_ob;
  86         tt_obe = tt_ob + i;
  87
  88         /*
  89          * Use the standard name of the terminal (i.e. the second
  90          * name in termcap).
  91          */
  92         for (p = wwtermcap; *p && *p != '|' && *p != ':'; p++)
  93                 ;
  94         if (*p == '|')
  95                 p++;
  96         for (q = p; *q && *q != '|' && *q != ':'; q++)
  97                 ;
  98         if (q != p && (t = malloc((unsigned) (q - p + 1))) != 0) {
  99                 wwterm = t;
 100                 while (p < q)
 101                         *t++ = *p++;
 102                 *t = 0;
 103         }
 104         for (tp = tt_tab; tp->tt_name != 0; tp++)
 105                 if (strncmp(tp->tt_name, wwterm, tp->tt_len) == 0)
 106                         break;
 107         if (tp->tt_name == 0) {
 108                 wwerrno = WWE_BADTERM;
 109                 return -1;
 110         }
 111         if ((*tp->tt_func)() < 0) {
 112                 wwerrno = WWE_CANTDO;
 113                 return -1;
 114         }
 115         if (wwgetttysize(0, &tt.tt_nrow, &tt.tt_ncol) < 0)
 116                 return -1;
 117         tt.tt_scroll_top = 0;
 118         tt.tt_scroll_bot = tt.tt_nrow - 1;
 119         return 0;
 120 }