mirror of https://github.com/python/cpython.git
98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
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/*
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** InterslipLib - Routines to talk to InterSLIP. Version 1.1, 31-Oct-1995.
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**
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**
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** (c) Jack Jansen, CWI, 1995 <jack@cwi.nl>
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*/
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#include <Devices.h>
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#include "InterslipLib.h"
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static CntrlParam iopb;
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static short refnum = -1;
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OSErr is_open()
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{
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if ( refnum >= 0 ) return 0;
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return OpenDriver("\p.InterSLIP", &refnum);
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}
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OSErr is_connect()
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{
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iopb.ioCRefNum = refnum;
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iopb.ioVRefNum = refnum;
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iopb.ioCompletion = (UniversalProcPtr) 0;
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iopb.csCode = 2;
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return PBControlImmed((ParmBlkPtr)&iopb);
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}
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OSErr is_disconnect()
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{
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iopb.ioCRefNum = refnum;
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iopb.ioVRefNum = refnum;
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iopb.ioCompletion = (UniversalProcPtr) 0;
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iopb.csCode = 3;
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return PBControlImmed((ParmBlkPtr)&iopb);
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}
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OSErr is_status(long *status, long *msgseqnum, StringPtr *msg)
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{
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long *csp;
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OSErr err;
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iopb.ioCRefNum = refnum;
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iopb.ioVRefNum = refnum;
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iopb.ioCompletion = (UniversalProcPtr) 0;
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iopb.csCode = 4;
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if( err = PBControlImmed((ParmBlkPtr)&iopb) )
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return err;
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csp = (long *)&iopb.csParam;
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*status = csp[0];
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*msgseqnum = csp[1];
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*msg = (unsigned char *)csp[2];
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return 0;
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}
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OSErr is_getconfig(long *baudrate, long *flags,
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Str255 idrvnam, Str255 odrvnam, Str255 cfgnam)
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{
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long *csp;
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OSErr err;
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iopb.ioCRefNum = refnum;
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iopb.ioVRefNum = refnum;
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iopb.ioCompletion = (UniversalProcPtr) 0;
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iopb.csCode = 6;
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csp = (long *)&iopb.csParam;
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csp[2] = (long)idrvnam;
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csp[3] = (long)odrvnam;
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csp[4] = (long)cfgnam;
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if( err = PBControlImmed((ParmBlkPtr)&iopb) )
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return err;
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*baudrate = csp[0];
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*flags = csp[1];
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return 0;
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}
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OSErr is_setconfig(long baudrate, long flags,
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Str255 idrvnam, Str255 odrvnam, Str255 cfgnam)
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{
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long *csp;
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OSErr err;
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iopb.ioCRefNum = refnum;
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iopb.ioVRefNum = refnum;
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iopb.ioCompletion = (UniversalProcPtr) 0;
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iopb.csCode = 7;
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csp = (long *)&iopb.csParam;
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csp[0] = baudrate;
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csp[1] = flags;
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csp[2] = (long)idrvnam;
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csp[3] = (long)odrvnam;
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csp[4] = (long)cfgnam;
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return PBControlImmed((ParmBlkPtr)&iopb);
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}
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