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Main
Synchronet
Commits
b569f302
Commit
b569f302
authored
4 years ago
by
deuce
Browse files
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Cleanup and update Get/SetFlowControl functions for *nix.
parent
dccfd996
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src/comio/comio_nix.c
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src/comio/comio_nix.c
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src/comio/comio_nix.c
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View file @
b569f302
...
...
@@ -5,227 +5,241 @@
/* $Id$ */
/****************************************************************************
* @format.tab-size 4
(Plain Text/Source Code File Header)
*
* @format.use-tabs true
(see http://www.synchro.net/ptsc_hdr.html)
*
*
*
* Copyright Rob Swindell - http://www.synchro.net/copyright.html
*
*
*
* This library is free software; you can redistribute it and/or
*
* modify it under the terms of the GNU Lesser General Public License
*
* as published by the Free Software Foundation; either version 2
*
* of the License, or (at your option) any later version.
*
* See the GNU Lesser General Public License for more details: lgpl.txt or
*
* http://www.fsf.org/copyleft/lesser.html
*
*
*
* Anonymous FTP access to the most recent released source is available at
*
* ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net
*
*
*
* Anonymous CVS access to the development source and modification history
*
* is available at cvs.synchro.net:/cvsroot/sbbs, example:
*
* cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login
*
* (just hit return, no password is necessary)
*
* cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src
*
*
*
* For Synchronet coding style and modification guidelines, see
*
* http://www.synchro.net/source.html
*
*
*
* You are encouraged to submit any modifications (preferably in Unix diff
*
* format) via e-mail to mods@synchro.net
*
*
*
* Note: If this box doesn't appear square, then you need to fix your tabs.
*
* @format.tab-size 4
(Plain Text/Source Code File Header)
*
* @format.use-tabs true
(see http://www.synchro.net/ptsc_hdr.html)
*
*
*
* Copyright Rob Swindell - http://www.synchro.net/copyright.html
*
*
*
* This library is free software; you can redistribute it and/or
*
* modify it under the terms of the GNU Lesser General Public License
*
* as published by the Free Software Foundation; either version 2
*
* of the License, or (at your option) any later version.
*
* See the GNU Lesser General Public License for more details: lgpl.txt or
*
* http://www.fsf.org/copyleft/lesser.html
*
*
*
* Anonymous FTP access to the most recent released source is available at
*
* ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net
*
*
*
* Anonymous CVS access to the development source and modification history
*
* is available at cvs.synchro.net:/cvsroot/sbbs, example:
*
* cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login
*
* (just hit return, no password is necessary)
*
* cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src
*
*
*
* For Synchronet coding style and modification guidelines, see
*
* http://www.synchro.net/source.html
*
*
*
* You are encouraged to submit any modifications (preferably in Unix diff
*
* format) via e-mail to mods@synchro.net
*
*
*
* Note: If this box doesn't appear square, then you need to fix your tabs.
*
****************************************************************************/
#include
<sys/ioctl.h>
#include
<sys/file.h>
#include
<fcntl.h>
// O_NONBLOCK
#include
<fcntl.h>
// O_NONBLOCK
#include
"comio.h"
#include
"genwrap.h"
#if defined(CCTS_OFLOW) && defined(CRTS_IFLOW)
#define CTSRTS_FLOW_CFLAGS (CCTS_OFLOW | CRTS_IFLOW)
#elif defined(CRTSCTS)
#define CTSRTS_FLOW_CFLAGS (CRTSCTS)
#else
#error No way to control CTS/RTS flow control
#endif
#if defined(IXON) && defined (IXOFF)
#define XONXOFF_FLOW_IFLAGS (IXON | IXOFF)
#else
#error No way to control XON/XOFF flow control
#endif
#ifdef SPEED_MACROS_ONLY
#define SUPPORTED_SPEED(x) \
if (speed <= (x)) \
return B##x
if (speed <= (x)) \
return B##x
speed_t
rate_to_macro
(
unsigned
long
speed
)
{
// Standard values
SUPPORTED_SPEED
(
0
);
SUPPORTED_SPEED
(
50
);
SUPPORTED_SPEED
(
75
);
SUPPORTED_SPEED
(
110
);
SUPPORTED_SPEED
(
134
);
SUPPORTED_SPEED
(
150
);
SUPPORTED_SPEED
(
200
);
SUPPORTED_SPEED
(
300
);
SUPPORTED_SPEED
(
600
);
SUPPORTED_SPEED
(
1200
);
SUPPORTED_SPEED
(
1800
);
SUPPORTED_SPEED
(
2400
);
SUPPORTED_SPEED
(
4800
);
SUPPORTED_SPEED
(
9600
);
SUPPORTED_SPEED
(
19200
);
SUPPORTED_SPEED
(
38400
);
// Non-POSIX
// Standard values
SUPPORTED_SPEED
(
0
);
SUPPORTED_SPEED
(
50
);
SUPPORTED_SPEED
(
75
);
SUPPORTED_SPEED
(
110
);
SUPPORTED_SPEED
(
134
);
SUPPORTED_SPEED
(
150
);
SUPPORTED_SPEED
(
200
);
SUPPORTED_SPEED
(
300
);
SUPPORTED_SPEED
(
600
);
SUPPORTED_SPEED
(
1200
);
SUPPORTED_SPEED
(
1800
);
SUPPORTED_SPEED
(
2400
);
SUPPORTED_SPEED
(
4800
);
SUPPORTED_SPEED
(
9600
);
SUPPORTED_SPEED
(
19200
);
SUPPORTED_SPEED
(
38400
);
// Non-POSIX
#ifdef B57600
SUPPORTED_SPEED
(
57600
);
SUPPORTED_SPEED
(
57600
);
#endif
#ifdef B115200
SUPPORTED_SPEED
(
115200
);
SUPPORTED_SPEED
(
115200
);
#endif
#ifdef B230400
SUPPORTED_SPEED
(
230400
);
SUPPORTED_SPEED
(
230400
);
#endif
#ifdef B460800
SUPPORTED_SPEED
(
460800
);
SUPPORTED_SPEED
(
460800
);
#endif
#ifdef B500000
SUPPORTED_SPEED
(
500000
);
SUPPORTED_SPEED
(
500000
);
#endif
#ifdef B576000
SUPPORTED_SPEED
(
576000
);
SUPPORTED_SPEED
(
576000
);
#endif
#ifdef B921600
SUPPORTED_SPEED
(
921600
);
SUPPORTED_SPEED
(
921600
);
#endif
#ifdef B1000000
SUPPORTED_SPEED
(
1000000
);
SUPPORTED_SPEED
(
1000000
);
#endif
#ifdef B1152000
SUPPORTED_SPEED
(
1152000
);
SUPPORTED_SPEED
(
1152000
);
#endif
#ifdef B1500000
SUPPORTED_SPEED
(
1500000
);
SUPPORTED_SPEED
(
1500000
);
#endif
#ifdef B2000000
SUPPORTED_SPEED
(
2000000
);
SUPPORTED_SPEED
(
2000000
);
#endif
#ifdef B2500000
SUPPORTED_SPEED
(
2500000
);
SUPPORTED_SPEED
(
2500000
);
#endif
#ifdef B3000000
SUPPORTED_SPEED
(
3000000
);
SUPPORTED_SPEED
(
3000000
);
#endif
#ifdef B3500000
SUPPORTED_SPEED
(
3500000
);
SUPPORTED_SPEED
(
3500000
);
#endif
#ifdef B4000000
SUPPORTED_SPEED
(
4000000
);
SUPPORTED_SPEED
(
4000000
);
#endif
return
B0
;
return
B0
;
}
#undef SUPPORTED_SPEED
#define SUPPORTED_SPEED(x) \
if (speed == B##x) \
return x;
if (speed == B##x) \
return x;
unsigned
long
macro_to_rate
(
speed_t
speed
)
{
// Standard values
SUPPORTED_SPEED
(
0
);
SUPPORTED_SPEED
(
50
);
SUPPORTED_SPEED
(
75
);
SUPPORTED_SPEED
(
110
);
SUPPORTED_SPEED
(
134
);
SUPPORTED_SPEED
(
150
);
SUPPORTED_SPEED
(
200
);
SUPPORTED_SPEED
(
300
);
SUPPORTED_SPEED
(
600
);
SUPPORTED_SPEED
(
1200
);
SUPPORTED_SPEED
(
1800
);
SUPPORTED_SPEED
(
2400
);
SUPPORTED_SPEED
(
4800
);
SUPPORTED_SPEED
(
9600
);
SUPPORTED_SPEED
(
19200
);
SUPPORTED_SPEED
(
38400
);
// Non-POSIX
// Standard values
SUPPORTED_SPEED
(
0
);
SUPPORTED_SPEED
(
50
);
SUPPORTED_SPEED
(
75
);
SUPPORTED_SPEED
(
110
);
SUPPORTED_SPEED
(
134
);
SUPPORTED_SPEED
(
150
);
SUPPORTED_SPEED
(
200
);
SUPPORTED_SPEED
(
300
);
SUPPORTED_SPEED
(
600
);
SUPPORTED_SPEED
(
1200
);
SUPPORTED_SPEED
(
1800
);
SUPPORTED_SPEED
(
2400
);
SUPPORTED_SPEED
(
4800
);
SUPPORTED_SPEED
(
9600
);
SUPPORTED_SPEED
(
19200
);
SUPPORTED_SPEED
(
38400
);
// Non-POSIX
#ifdef B57600
SUPPORTED_SPEED
(
57600
);
SUPPORTED_SPEED
(
57600
);
#endif
#ifdef B115200
SUPPORTED_SPEED
(
115200
);
SUPPORTED_SPEED
(
115200
);
#endif
#ifdef B230400
SUPPORTED_SPEED
(
230400
);
SUPPORTED_SPEED
(
230400
);
#endif
#ifdef B460800
SUPPORTED_SPEED
(
460800
);
SUPPORTED_SPEED
(
460800
);
#endif
#ifdef B500000
SUPPORTED_SPEED
(
500000
);
SUPPORTED_SPEED
(
500000
);
#endif
#ifdef B576000
SUPPORTED_SPEED
(
576000
);
SUPPORTED_SPEED
(
576000
);
#endif
#ifdef B921600
SUPPORTED_SPEED
(
921600
);
SUPPORTED_SPEED
(
921600
);
#endif
#ifdef B1000000
SUPPORTED_SPEED
(
1000000
);
SUPPORTED_SPEED
(
1000000
);
#endif
#ifdef B1152000
SUPPORTED_SPEED
(
1152000
);
SUPPORTED_SPEED
(
1152000
);
#endif
#ifdef B1500000
SUPPORTED_SPEED
(
1500000
);
SUPPORTED_SPEED
(
1500000
);
#endif
#ifdef B2000000
SUPPORTED_SPEED
(
2000000
);
SUPPORTED_SPEED
(
2000000
);
#endif
#ifdef B2500000
SUPPORTED_SPEED
(
2500000
);
SUPPORTED_SPEED
(
2500000
);
#endif
#ifdef B3000000
SUPPORTED_SPEED
(
3000000
);
SUPPORTED_SPEED
(
3000000
);
#endif
#ifdef B3500000
SUPPORTED_SPEED
(
3500000
);
SUPPORTED_SPEED
(
3500000
);
#endif
#ifdef B4000000
SUPPORTED_SPEED
(
4000000
);
SUPPORTED_SPEED
(
4000000
);
#endif
return
0
;
return
0
;
}
#undef SUPPORTED_SPEED
#else
#define rate_to_macro(x)
(x)
#define macro_to_rate(x)
(x)
#define rate_to_macro(x)
(x)
#define macro_to_rate(x)
(x)
#endif
char
*
comVersion
(
char
*
str
,
size_t
len
)
{
char
revision
[
16
];
char
revision
[
16
];
sscanf
(
"$Revision$"
,
"%*s %s"
,
revision
);
sscanf
(
"$Revision$"
,
"%*s %s"
,
revision
);
safe_snprintf
(
str
,
len
,
"Synchronet Communications I/O Library for "
PLATFORM_DESC
" v%s"
,
revision
);
return
str
;
safe_snprintf
(
str
,
len
,
"Synchronet Communications I/O Library for "
PLATFORM_DESC
" v%s"
,
revision
);
return
str
;
}
COM_HANDLE
comOpen
(
const
char
*
device
)
{
COM_HANDLE
handle
;
struct
termios
t
;
if
((
handle
=
open
(
device
,
O_NONBLOCK
|
O_RDWR
))
==
COM_HANDLE_INVALID
)
return
COM_HANDLE_INVALID
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
{
close
(
handle
);
return
COM_HANDLE_INVALID
;
}
t
.
c_iflag
=
(
IGNBRK
/* ignore BREAK condition */
|
IGNPAR
/* ignore (discard) parity errors */
);
t
.
c_oflag
=
0
;
/* No output processing */
t
.
c_cflag
=
(
CS8
/* 8 bits */
|
CREAD
/* enable receiver */
COM_HANDLE
handle
;
struct
termios
t
;
if
((
handle
=
open
(
device
,
O_NONBLOCK
|
O_RDWR
))
==
COM_HANDLE_INVALID
)
return
COM_HANDLE_INVALID
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
{
close
(
handle
);
return
COM_HANDLE_INVALID
;
}
t
.
c_iflag
=
(
IGNBRK
/* ignore BREAK condition */
|
IGNPAR
/* ignore (discard) parity errors */
);
t
.
c_oflag
=
0
;
/* No output processing */
t
.
c_cflag
=
(
CS8
/* 8 bits */
|
CREAD
/* enable receiver */
/*
Fun snippet from the FreeBSD manpage:
...
...
@@ -234,174 +248,140 @@ Fun snippet from the FreeBSD manpage:
pretty silly and if it were not part of the termios specification it
would be omitted.
*/
|
HUPCL
/* hang up on last close */
|
CLOCAL
/* ignore modem status lines */
/* The next two are pretty much never used */
#ifdef CCTX_OFLOW
|
CCTS_OFLOW
/* CTS flow control of output */
#endif
#ifdef CRTSCTS
|
CRTSCTS
/* same as CCTS_OFLOW */
#endif
#ifdef CRTS_IFLOW
|
CRTS_IFLOW
/* RTS flow control of input */
#endif
);
t
.
c_lflag
=
0
;
/* No local modes */
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
{
close
(
handle
);
return
COM_HANDLE_INVALID
;
}
return
handle
;
|
HUPCL
/* hang up on last close */
|
CLOCAL
/* ignore modem status lines */
|
CTSRTS_FLOW_CFLAGS
);
t
.
c_lflag
=
0
;
/* No local modes */
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
{
close
(
handle
);
return
COM_HANDLE_INVALID
;
}
return
handle
;
}
BOOL
comClose
(
COM_HANDLE
handle
)
{
return
(
!
close
(
handle
));
return
(
!
close
(
handle
));
}
long
comGetBaudRate
(
COM_HANDLE
handle
)
{
struct
termios
t
;
speed_t
in
;
speed_t
out
;
if
(
tcgetattr
(
handle
,
&
t
))
return
COM_ERROR
;
/*
* We actually have TWO speeds available...
* return the biggest one
*/
in
=
macro_to_rate
(
cfgetispeed
(
&
t
));
out
=
macro_to_rate
(
cfgetospeed
(
&
t
));
return
((
long
)(
in
>
out
?
in
:
out
));
struct
termios
t
;
speed_t
in
;
speed_t
out
;
if
(
tcgetattr
(
handle
,
&
t
))
return
COM_ERROR
;
/*
* We actually have TWO speeds available...
* return the biggest one
*/
in
=
macro_to_rate
(
cfgetispeed
(
&
t
));
out
=
macro_to_rate
(
cfgetospeed
(
&
t
));
return
((
long
)(
in
>
out
?
in
:
out
));
}
BOOL
comSetBaudRate
(
COM_HANDLE
handle
,
unsigned
long
rate
)
{
struct
termios
t
;
struct
termios
t
;
if
(
tcgetattr
(
handle
,
&
t
))
return
FALSE
;
if
(
tcgetattr
(
handle
,
&
t
))
return
FALSE
;
cfsetispeed
(
&
t
,
rate_to_macro
(
rate
));
cfsetospeed
(
&
t
,
rate_to_macro
(
rate
));
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
return
FALSE
;
cfsetispeed
(
&
t
,
rate_to_macro
(
rate
));
cfsetospeed
(
&
t
,
rate_to_macro
(
rate
));
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
return
FALSE
;
return
TRUE
;
return
TRUE
;
}
BOOL
comGet
Tx
FlowControl
(
COM_HANDLE
handle
)
int
comGetFlowControl
(
COM_HANDLE
handle
)
{
BOOL
ret
=
FALSE
;
struct
termios
t
;
int
ret
=
0
;
struct
termios
t
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
return
FALSE
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
return
FALSE
;
ret
=
(
t
.
c_cflag
&
(
0
/* The next two are pretty much never used */
#ifdef CCTX_OFLOW
|
CCTS_OFLOW
/* CTS flow control of output */
#endif
#ifdef CRTSCTS
|
CRTSCTS
/* same as CCTS_OFLOW */
#endif
#ifdef CRTS_IFLOW
|
CRTS_IFLOW
/* RTS flow control of input */
#endif
))
?
TRUE
:
FALSE
;
if
((
t
.
c_cflag
&
CTSRTS_FLOW_CFLAGS
)
==
CTSRTS_FLOW_CFLAGS
)
ret
|=
COM_FLOW_CONTROL_RTS_CTS
;
if
((
t
.
c_iflag
&
XONXOFF_FLOW_IFLAGS
)
==
XONXOFF_FLOW_IFLAGS
)
ret
|=
COM_FLOW_CONTROL_XON_OFF
;
return
ret
;
return
ret
;
}
BOOL
comSet
Tx
FlowControl
(
COM_HANDLE
handle
,
BOOL
enable
)
BOOL
comSetFlowControl
(
COM_HANDLE
handle
,
int
modes
)
{
struct
termios
t
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
return
FALSE
;
if
(
enable
)
{
t
.
c_cflag
|=
(
0
/* The next two are pretty much never used */
#ifdef CCTX_OFLOW
|
CCTS_OFLOW
/* CTS flow control of output */
#endif
#ifdef CRTSCTS
|
CRTSCTS
/* same as CCTS_OFLOW */
#endif
#ifdef CRTS_IFLOW
|
CRTS_IFLOW
/* RTS flow control of input */
#endif
);
}
else
{
t
.
c_cflag
&=
~
(
0
/* The next two are pretty much never used */
#ifdef CCTX_OFLOW
|
CCTS_OFLOW
/* CTS flow control of output */
#endif
#ifdef CRTSCTS
|
CRTSCTS
/* same as CCTS_OFLOW */
#endif
#ifdef CRTS_IFLOW
|
CRTS_IFLOW
/* RTS flow control of input */
#endif
);
}
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
return
FALSE
;
return
TRUE
;
struct
termios
t
;
if
(
tcgetattr
(
handle
,
&
t
)
==-
1
)
return
FALSE
;
if
(
modes
&
COM_FLOW_CONTROL_RTS_CTS
)
t
.
c_cflag
|=
CTSRTS_FLOW_CFLAGS
;
else
t
.
c_cflag
&=
~
CTSRTS_FLOW_CFLAGS
;
if
(
modes
&
COM_FLOW_CONTROL_XON_OFF
)
t
.
c_iflag
|=
XONXOFF_FLOW_IFLAGS
;
else
t
.
c_iflag
&=
~
XONXOFF_FLOW_IFLAGS
;
if
(
tcsetattr
(
handle
,
TCSANOW
,
&
t
)
==-
1
)
return
FALSE
;
return
TRUE
;
}
int
comGetModemStatus
(
COM_HANDLE
handle
)
{
int
status
;
int
status
;
if
(
ioctl
(
handle
,
TIOCMGET
,
&
status
)
==-
1
)
return
COM_ERROR
;
if
(
ioctl
(
handle
,
TIOCMGET
,
&
status
)
==-
1
)
return
COM_ERROR
;
return
status
;
return
status
;
}
static
BOOL
comSetFlags
(
COM_HANDLE
handle
,
int
flags
,
BOOL
set
)
{
int
cmd
=
set
?
TIOCMBIS
:
TIOCMBIC
;
int
cmd
=
set
?
TIOCMBIS
:
TIOCMBIC
;
return
ioctl
(
handle
,
cmd
,
&
flags
);
return
ioctl
(
handle
,
cmd
,
&
flags
);
}
BOOL
comRaiseDTR
(
COM_HANDLE
handle
)
{
return
comSetFlags
(
handle
,
TIOCM_DTR
,
TRUE
);
return
comSetFlags
(
handle
,
TIOCM_DTR
,
TRUE
);
}
BOOL
comLowerDTR
(
COM_HANDLE
handle
)
{
return
comSetFlags
(
handle
,
TIOCM_DTR
,
FALSE
);
return
comSetFlags
(
handle
,
TIOCM_DTR
,
FALSE
);
}
BOOL
comRaiseRTS
(
COM_HANDLE
handle
)
{
return
comSetFlags
(
handle
,
TIOCM_RTS
,
TRUE
);
return
comSetFlags
(
handle
,
TIOCM_RTS
,
TRUE
);
}
BOOL
comLowerRTS
(
COM_HANDLE
handle
)
{
return
comSetFlags
(
handle
,
TIOCM_RTS
,
FALSE
);
return
comSetFlags
(
handle
,
TIOCM_RTS
,
FALSE
);
}
BOOL
comWriteByte
(
COM_HANDLE
handle
,
BYTE
ch
)
{
return
(
write
(
handle
,
&
ch
,
1
)
==
1
);
return
(
write
(
handle
,
&
ch
,
1
)
==
1
);
}
int
comWriteBuf
(
COM_HANDLE
handle
,
const
BYTE
*
buf
,
size_t
buflen
)
{
return
write
(
handle
,
buf
,
buflen
);
return
write
(
handle
,
buf
,
buflen
);
}
/*
...
...
@@ -409,25 +389,25 @@ int comWriteBuf(COM_HANDLE handle, const BYTE* buf, size_t buflen)
*/
int
comWriteString
(
COM_HANDLE
handle
,
const
char
*
str
)
{
return
comWriteBuf
(
handle
,
(
BYTE
*
)
str
,
strlen
(
str
));
return
comWriteBuf
(
handle
,
(
BYTE
*
)
str
,
strlen
(
str
));
}
BOOL
comReadByte
(
COM_HANDLE
handle
,
BYTE
*
ch
)
{
return
(
read
(
handle
,
ch
,
1
)
==
1
);
return
(
read
(
handle
,
ch
,
1
)
==
1
);
}
BOOL
comPurgeInput
(
COM_HANDLE
handle
)
{
return
(
tcflush
(
handle
,
TCIFLUSH
)
==
0
);
return
(
tcflush
(
handle
,
TCIFLUSH
)
==
0
);
}
BOOL
comPurgeOutput
(
COM_HANDLE
handle
)
{
return
(
tcflush
(
handle
,
TCOFLUSH
)
==
0
);
return
(
tcflush
(
handle
,
TCOFLUSH
)
==
0
);
}
BOOL
comDrainOutput
(
COM_HANDLE
handle
)
{
return
(
tcdrain
(
handle
)
==
0
);
return
(
tcdrain
(
handle
)
==
0
);
}
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