150276Speter/**************************************************************************** 2184989Srafan * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * 350276Speter * * 450276Speter * Permission is hereby granted, free of charge, to any person obtaining a * 550276Speter * copy of this software and associated documentation files (the * 650276Speter * "Software"), to deal in the Software without restriction, including * 750276Speter * without limitation the rights to use, copy, modify, merge, publish, * 850276Speter * distribute, distribute with modifications, sublicense, and/or sell * 950276Speter * copies of the Software, and to permit persons to whom the Software is * 1050276Speter * furnished to do so, subject to the following conditions: * 1150276Speter * * 1250276Speter * The above copyright notice and this permission notice shall be included * 1350276Speter * in all copies or substantial portions of the Software. * 1450276Speter * * 1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 2250276Speter * * 2350276Speter * Except as contained in this notice, the name(s) of the above copyright * 2450276Speter * holders shall not be used in advertising or otherwise to promote the * 2550276Speter * sale, use or other dealings in this Software without prior written * 2650276Speter * authorization. * 2750276Speter ****************************************************************************/ 2850276Speter 2950276Speter/**************************************************************************** 3050276Speter * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 3150276Speter * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32174998Srafan * and: Thomas E. Dickey 1996-on * 3350276Speter ****************************************************************************/ 3450276Speter 3550276Speter/* 3650276Speter * lib_baudrate.c 3750276Speter * 3850276Speter */ 3950276Speter 4050276Speter#include <curses.priv.h> 4166963Speter#include <term.h> /* cur_term, pad_char */ 4266963Speter#include <termcap.h> /* ospeed */ 43174998Srafan#if defined(__FreeBSD__) 44174998Srafan#include <sys/param.h> 45174998Srafan#endif 4650276Speter 4789354Sache/* 4889354Sache * These systems use similar header files, which define B1200 as 1200, etc., 4989354Sache * but can be overridden by defining USE_OLD_TTY so B1200 is 9, which makes all 5089354Sache * of the indices up to B115200 fit nicely in a 'short', allowing us to retain 5189354Sache * ospeed's type for compatibility. 5289354Sache */ 53174998Srafan#if (defined(__FreeBSD__) && (__FreeBSD_version < 700000)) || defined(__NetBSD__) || defined(__OpenBSD__) 5489354Sache#undef B0 5589354Sache#undef B50 5689354Sache#undef B75 5789354Sache#undef B110 5889354Sache#undef B134 5989354Sache#undef B150 6089354Sache#undef B200 6189354Sache#undef B300 6289354Sache#undef B600 6389354Sache#undef B1200 6489354Sache#undef B1800 6589354Sache#undef B2400 6689354Sache#undef B4800 6789354Sache#undef B9600 6889354Sache#undef B19200 6989354Sache#undef EXTA 7089354Sache#undef B38400 7189354Sache#undef EXTB 7289354Sache#undef B57600 7389354Sache#undef B115200 7489354Sache#undef B230400 7589354Sache#undef B460800 7697049Speter#undef B921600 7789354Sache#define USE_OLD_TTY 7889354Sache#include <sys/ttydev.h> 7989354Sache#else 8089354Sache#undef USE_OLD_TTY 8189354Sache#endif /* USE_OLD_TTY */ 8250276Speter 83184989SrafanMODULE_ID("$Id: lib_baudrate.c,v 1.27 2008/06/28 15:19:24 tom Exp $") 8489354Sache 8550276Speter/* 8650276Speter * int 8750276Speter * baudrate() 8850276Speter * 8950276Speter * Returns the current terminal's baud rate. 9050276Speter * 9150276Speter */ 9250276Speter 9350276Speterstruct speed { 9476726Speter int s; /* value for 'ospeed' is an index */ 9576726Speter int sp; /* the actual speed */ 9650276Speter}; 9750276Speter 9866963Speterstatic struct speed const speeds[] = 9966963Speter{ 10066963Speter {B0, 0}, 10166963Speter {B50, 50}, 10266963Speter {B75, 75}, 10366963Speter {B110, 110}, 10466963Speter {B134, 134}, 10566963Speter {B150, 150}, 10666963Speter {B200, 200}, 10766963Speter {B300, 300}, 10866963Speter {B600, 600}, 10966963Speter {B1200, 1200}, 11066963Speter {B1800, 1800}, 11166963Speter {B2400, 2400}, 11266963Speter {B4800, 4800}, 11366963Speter {B9600, 9600}, 11450276Speter#ifdef B19200 11566963Speter {B19200, 19200}, 11650276Speter#else 11750276Speter#ifdef EXTA 11866963Speter {EXTA, 19200}, 11950276Speter#endif 12050276Speter#endif 12150276Speter#ifdef B38400 12266963Speter {B38400, 38400}, 12350276Speter#else 12450276Speter#ifdef EXTB 12566963Speter {EXTB, 38400}, 12650276Speter#endif 12750276Speter#endif 12850276Speter#ifdef B57600 12966963Speter {B57600, 57600}, 13050276Speter#endif 13150276Speter#ifdef B115200 13266963Speter {B115200, 115200}, 13350276Speter#endif 13450276Speter#ifdef B230400 13566963Speter {B230400, 230400}, 13650276Speter#endif 13750276Speter#ifdef B460800 13866963Speter {B460800, 460800}, 13950276Speter#endif 14097049Speter#ifdef B921600 14197049Speter {B921600, 921600}, 14297049Speter#endif 14350276Speter}; 14450276Speter 14576726SpeterNCURSES_EXPORT(int) 14666963Speter_nc_baudrate(int OSpeed) 14750276Speter{ 148174998Srafan#if !USE_REENTRANT 14966963Speter static int last_OSpeed; 15066963Speter static int last_baudrate; 151174998Srafan#endif 15250276Speter 153174998Srafan int result = ERR; 15466963Speter unsigned i; 15550276Speter 156174998Srafan#if !USE_REENTRANT 15766963Speter if (OSpeed == last_OSpeed) { 15866963Speter result = last_baudrate; 159174998Srafan } 160174998Srafan#endif 161174998Srafan if (result == ERR) { 16266963Speter if (OSpeed >= 0) { 16366963Speter for (i = 0; i < SIZEOF(speeds); i++) { 16466963Speter if (speeds[i].s == OSpeed) { 16566963Speter result = speeds[i].sp; 16666963Speter break; 16750276Speter } 16866963Speter } 16950276Speter } 170174998Srafan#if !USE_REENTRANT 171174998Srafan if (OSpeed == last_OSpeed) { 172174998Srafan last_OSpeed = OSpeed; 173174998Srafan last_baudrate = result; 174174998Srafan } 175174998Srafan#endif 17666963Speter } 17766963Speter return (result); 17850276Speter} 17950276Speter 18076726SpeterNCURSES_EXPORT(int) 18166963Speter_nc_ospeed(int BaudRate) 18250276Speter{ 18366963Speter int result = 1; 18466963Speter unsigned i; 18550276Speter 18666963Speter if (BaudRate >= 0) { 18766963Speter for (i = 0; i < SIZEOF(speeds); i++) { 18866963Speter if (speeds[i].sp == BaudRate) { 18966963Speter result = speeds[i].s; 19066963Speter break; 19166963Speter } 19250276Speter } 19366963Speter } 19466963Speter return (result); 19550276Speter} 19650276Speter 19776726SpeterNCURSES_EXPORT(int) 19850276Speterbaudrate(void) 19950276Speter{ 20066963Speter int result; 20150276Speter 20266963Speter T((T_CALLED("baudrate()"))); 20350276Speter 20466963Speter /* 20566963Speter * In debugging, allow the environment symbol to override when we're 20666963Speter * redirecting to a file, so we can construct repeatable test-cases 20766963Speter * that take into account costs that depend on baudrate. 20866963Speter */ 20950276Speter#ifdef TRACE 210184989Srafan if (!isatty(fileno(SP ? SP->_ofp : stdout)) 21166963Speter && getenv("BAUDRATE") != 0) { 21266963Speter int ret; 21366963Speter if ((ret = _nc_getenv_num("BAUDRATE")) <= 0) 21466963Speter ret = 9600; 21566963Speter ospeed = _nc_ospeed(ret); 21666963Speter returnCode(ret); 21789354Sache } 21850276Speter#endif 21950276Speter 220184989Srafan if (cur_term != 0) { 22189354Sache#ifdef USE_OLD_TTY 222184989Srafan result = cfgetospeed(&cur_term->Nttyb); 223184989Srafan ospeed = _nc_ospeed(result); 22497049Speter#else /* !USE_OLD_TTY */ 22550276Speter#ifdef TERMIOS 226184989Srafan ospeed = cfgetospeed(&cur_term->Nttyb); 22750276Speter#else 228184989Srafan ospeed = cur_term->Nttyb.sg_ospeed; 22950276Speter#endif 230184989Srafan result = _nc_baudrate(ospeed); 23197049Speter#endif 23266963Speter cur_term->_baudrate = result; 233184989Srafan } else { 234184989Srafan result = ERR; 235184989Srafan } 23650276Speter 23766963Speter returnCode(result); 23850276Speter} 239