lib/libterminfo/curterm.c

   1 /* $NetBSD: curterm.c,v 1.4 2010/02/22 23:05:39 roy Exp $ */
   2
   3 /*
   4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
   5  *
   6  * This code is derived from software contributed to The NetBSD Foundation
   7  * by Roy Marples.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __RCSID("$NetBSD: curterm.c,v 1.4 2010/02/22 23:05:39 roy Exp $");
  32
  33 #include <assert.h>
  34 #include <stdlib.h>
  35 #include <term_private.h>
  36 #include <term.h>
  37 #include <termios.h>
  38 #include <stdio.h>
  39 TERMINAL *cur_term;
  40
  41 static const speed_t bauds[] = {
  42         0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 2400, 4800, 9600,
  43         19200, 38400, 57600, 115200, 230400, 460800, 921600
  44 };
  45
  46 void
  47 _ti_setospeed(TERMINAL *term)
  48 {
  49         struct termios termios;
  50         speed_t os;
  51         size_t i;
  52
  53         _DIAGASSERT(term != NULL);
  54
  55         term->_ospeed = 0;
  56         if (tcgetattr(term->fildes, &termios) == 0) {
  57                 os = cfgetospeed(&termios);
  58                 for (i = 0; i < __arraycount(bauds); i++)
  59                         if (bauds[i] == os) {
  60                                 term->_ospeed = i;
  61                                 break;
  62                         }
  63         }
  64 }
  65
  66 TERMINAL *
  67 set_curterm(TERMINAL *nterm)
  68 {
  69         TERMINAL *oterm;
  70
  71         oterm = cur_term;
  72         cur_term = nterm;
  73
  74         ospeed = 0;
  75         if (cur_term == NULL)
  76                 PC = '\0';
  77         else {
  78                 if (pad_char == NULL)
  79                         PC = '\0';
  80                 else
  81                         PC = *pad_char;
  82                 _ti_setospeed(nterm);
  83                 ospeed = nterm->_ospeed;
  84         }
  85
  86         return oterm;
  87 }
  88
  89 int
  90 del_curterm(TERMINAL *oterm)
  91 {
  92
  93         _ti_freeterm(oterm);
  94         return 0;
  95 }