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contrib/mg/curterm.c
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/* $NetBSD: curterm.c,v 1.13 2017/05/04 09:42:23 roy Exp $ */ | |||||
/* | |||||
* Copyright (c) 2009, 2011 The NetBSD Foundation, Inc. | |||||
* | |||||
* This code is derived from software contributed to The NetBSD Foundation | |||||
* by Roy Marples. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice, this list of conditions and the following disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
*/ | |||||
#include <sys/cdefs.h> | |||||
#include <stdlib.h> | |||||
#include <string.h> | |||||
#include <termios.h> | |||||
#include <stdio.h> | |||||
#include "term_private.h" | |||||
#include "terminfo_term.h" | |||||
#ifndef __arraycount | |||||
#define __arraycount(__x) (sizeof(__x) / sizeof(__x[0])) | |||||
#endif | |||||
#ifndef __UNCONST | |||||
#define __UNCONST(a) ((void *)(unsigned long)(const void *)(a)) | |||||
#endif | |||||
TERMINAL *cur_term; | |||||
/* | |||||
* There is no standard way of getting a list of aliases for the | |||||
* terminal. However, some applications such as telnet want to know this. | |||||
* ncurses dumps the terminfo header into an undefined variable ttytype | |||||
* and these applications then parse it to work out the aliases. | |||||
* We should do the same for now, until a standard mechanism for getting | |||||
* the information is available or the need for it goes away. | |||||
*/ | |||||
#define NAMESIZE 256 | |||||
char ttytype[NAMESIZE]; | |||||
static const speed_t bauds[] = { | |||||
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 2400, 4800, 9600, | |||||
19200, 38400, 57600, 115200, 230400, 460800, 921600 | |||||
}; | |||||
void | |||||
_ti_setospeed(TERMINAL *term) | |||||
{ | |||||
struct termios termios; | |||||
speed_t os; | |||||
size_t i; | |||||
term->_ospeed = 0; | |||||
if (tcgetattr(term->fildes, &termios) == 0) { | |||||
os = cfgetospeed(&termios); | |||||
for (i = 0; i < __arraycount(bauds); i++) | |||||
if (bauds[i] == os) { | |||||
term->_ospeed = (short)i; | |||||
break; | |||||
} | |||||
} | |||||
} | |||||
TERMINAL * | |||||
set_curterm(TERMINAL *nterm) | |||||
{ | |||||
TERMINAL *oterm; | |||||
size_t l, n; | |||||
char *p; | |||||
oterm = cur_term; | |||||
cur_term = nterm; | |||||
ospeed = 0; | |||||
if (cur_term == NULL) | |||||
PC = '\0'; | |||||
else { | |||||
if (pad_char == NULL) | |||||
PC = '\0'; | |||||
else | |||||
PC = *pad_char; | |||||
_ti_setospeed(nterm); | |||||
ospeed = nterm->_ospeed; | |||||
p = ttytype; | |||||
l = sizeof(ttytype); | |||||
if ((n = strlcpy(p, nterm->name, l)) == strlen(p)) { | |||||
p += n; | |||||
l -= n; | |||||
*p++ = '|'; | |||||
l--; | |||||
if (nterm->_alias && | |||||
(n = strlcpy(p, nterm->_alias, l)) == strlen(p)) | |||||
{ | |||||
p += n; | |||||
l -= n; | |||||
*p++ = '|'; | |||||
l--; | |||||
} | |||||
if (nterm->desc && | |||||
(n = strlcpy(p, nterm->desc, l)) == strlen(p)) | |||||
{ | |||||
p += n; | |||||
l -= n; | |||||
*p++ = '|'; | |||||
l--; | |||||
} | |||||
p--; | |||||
} | |||||
*p = '\0'; | |||||
} | |||||
return oterm; | |||||
} | |||||
int | |||||
del_curterm(TERMINAL *oterm) | |||||
{ | |||||
if (oterm == NULL) | |||||
return ERR; | |||||
free(oterm->_area); | |||||
free(oterm->strs); | |||||
free(oterm->nums); | |||||
free(oterm->flags); | |||||
free(oterm->_userdefs); | |||||
free(oterm->_buf); | |||||
free(oterm); | |||||
if (oterm == cur_term) | |||||
cur_term = NULL; | |||||
return OK; | |||||
} | |||||
char * | |||||
termname(void) | |||||
{ | |||||
return __UNCONST(cur_term->name); | |||||
} | |||||
static const char * nullname = ""; | |||||
char * | |||||
longname(void) | |||||
{ | |||||
if (cur_term->desc == NULL) | |||||
return __UNCONST(nullname); | |||||
return __UNCONST(cur_term->desc); | |||||
} |