Add non-standard function: _set_ospeed(speed)
Basically all termios+termcap pgms needs it. It set ospeed variable using nearest-matched stty speeds, which helps termcap pgms works with non-fixed termios speeds and not duplicate ospeed switch into every pgm. Also it isn't standard function, its source code is too big to include it in whole to every termcap+termios pgm.
This commit is contained in:
Andrey A. Chernov
parent
7221ecc0ba
commit
2f0c493d09
@ -4,12 +4,12 @@ LIB= termcap
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SHLIB_MAJOR= 2
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SHLIB_MINOR= 1
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CFLAGS+=-DCM_N -DCM_GT -DCM_B -DCM_D
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SRCS= termcap.c tgoto.c tputs.c tparm.c
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SRCS= termcap.c tgoto.c tputs.c tparm.c tospeed.c
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MAN3= termcap.3
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MLINKS= termcap.3 tgetent.3 termcap.3 tgetflag.3 termcap.3 tgetnum.3 \
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termcap.3 tgetstr.3 termcap.3 tgoto.3 termcap.3 tputs.3 \
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termcap.3 tparm.3
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termcap.3 tparm.3 termcap.3 _set_ospeed.3
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LINKS= ${LIBDIR}/libtermcap.a ${LIBDIR}/libtermlib.a
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.if !defined(NOPIC)
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LINKS+= ${SHLIBDIR}/libtermcap.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
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@ -41,7 +41,8 @@
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.Nm tgetstr ,
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.Nm tgoto ,
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.Nm tputs ,
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.Nm tparm
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.Nm tparm ,
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.Nm _set_ospeed
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.Nd terminal independent operation routines
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.Sh SYNOPSIS
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.Fd #include <termcap.h>
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@ -63,6 +64,8 @@
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.Fn tputs "const char *cp" "int affcnt" "int (*outc)(int)"
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.Ft char *
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.Fn tparm "const char *cp" "..."
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.Ft void
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.Fn _set_ospeed "long speed"
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.Sh DESCRIPTION
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These functions extract and use capabilities from a terminal capability data
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base, usually
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@ -232,6 +235,13 @@ The external variable
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.Va ospeed
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should contain the output speed of the terminal as encoded by
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.Xr stty 3 .
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The
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.Fn _set_ospeed
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functions converts any (not exactly matched only) numeric speed to
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.Xr stty 3
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encoded speed and set
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.Va ospeed
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variable.
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The external variable
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.Va PC
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should contain a pad character to be used (from the
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 1994 by Andrew A. Chernov, Moscow, Russia.
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* Copyright (C) 1994,1995 by Andrey A. Chernov, Moscow, Russia.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -14,7 +14,7 @@
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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@ -24,7 +24,7 @@
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* SUCH DAMAGE.
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*/
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/* $Id: termcap.h,v 1.3 1994/12/09 21:55:52 ache Exp $ */
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/* $Id: termcap.h,v 1.4 1994/12/10 22:01:25 ache Exp $ */
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#ifndef _TERMCAP_H_
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#define _TERMCAP_H_
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@ -46,6 +46,8 @@ extern int tputs __P((const char *, int, int (*)(int)));
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extern char *tgoto __P((const char *, int, int));
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extern char *tparm __P((const char *, ...));
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extern void _set_ospeed __P((long speed));
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__END_DECLS
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#endif /* _TERMCAP_H_ */
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71
lib/libtermcap/tospeed.c
Normal file
71
lib/libtermcap/tospeed.c
Normal file
@ -0,0 +1,71 @@
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/*
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* Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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extern short ospeed;
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static struct stable {
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long speed;
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short code;
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} table[] = {
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{115200,17},
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{57600, 16},
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{38400, 15},
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{19200, 14},
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{9600, 13},
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{4800, 12},
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{2400, 11},
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{1800, 10},
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{1200, 9},
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{600, 8},
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{300, 7},
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{200, 6},
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{150, 5},
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{134, 4},
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{110, 3},
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{75, 2},
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{50, 1},
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{0, 0},
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{-1, -1}
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};
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void _set_ospeed(long speed)
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{
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struct stable *stable;
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if (speed == 0) {
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ospeed = 0;
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return;
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}
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for (stable = table; stable->speed > 0; stable++) {
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/* nearest one, rounded down */
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if (stable->speed <= speed) {
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ospeed = stable->code;
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return;
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}
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}
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ospeed = 1; /* 50, min and not hangup */
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}
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