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https://github.com/ep00ch/lwip-contrib-mac.git
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147 lines
4.8 KiB
C
147 lines
4.8 KiB
C
/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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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 modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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*/
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#include <lwip/opt.h>
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#include <lwip/sys.h>
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#include <lwip/sio.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <windows.h>
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static int sio_abort=0;
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/* \\.\pipe\lwip0 */
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/* pppd /dev/ttyS0 logfile mylog debug nocrtscts local noauth noccp ms-dns 212.27.54.252 192.168.0.4:192.168.0.5
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*/
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/**
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* SIO_DEBUG: Enable debugging for SIO.
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*/
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#ifndef SIO_DEBUG
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#define SIO_DEBUG LWIP_DBG_OFF
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#endif
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/**
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* Open serial port entry point from serial protocol (slipif, pppif)
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* @param devnum the device number to use, i.e. ttySx, comx:, etc. there x = devnum
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* @return psio struct, contains sio instance data, use when calling sio functions
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*/
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sio_fd_t sio_open(u8_t devnum)
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{ HANDLE hPipe = INVALID_HANDLE_VALUE;
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CHAR szPipeName[256];
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LWIP_DEBUGF( SIO_DEBUG, ("sio_open(%lu)\n", (DWORD)devnum));
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sprintf( szPipeName, "\\\\.\\pipe\\lwip%lu", (DWORD)(devnum));
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hPipe = CreateFile(szPipeName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
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if (hPipe != INVALID_HANDLE_VALUE) {
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sio_abort=0;
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FlushFileBuffers(hPipe);
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return (sio_fd_t)(hPipe);
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}
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return NULL;
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}
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/**
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* Write a char to output data stream
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* @param num char to write to output stream
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* @param psio struct, contains sio instance data, given by sio_open
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*/
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void sio_send(u8_t num, sio_fd_t psio)
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{ DWORD dwNbBytesWritten = 0;
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LWIP_DEBUGF( SIO_DEBUG, ("sio_send(%lu)\n", (DWORD)num));
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while ((!WriteFile( (HANDLE)(psio), &num, 1, &dwNbBytesWritten, NULL)) || (dwNbBytesWritten<1));
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return;
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}
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/**
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* Read a char from incoming data stream, this call blocks until data has arrived
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* @param psio siostatus struct, contains sio instance data, given by sio_open
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* @return char read from input stream
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*/
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u8_t sio_recv(sio_fd_t psio)
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{ DWORD dwNbBytesReadden = 0;
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u8_t byte = 0;
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LWIP_DEBUGF( SIO_DEBUG, ("sio_recv()\n"));
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while ((sio_abort==0) && ((!ReadFile( (HANDLE)(psio), &byte, 1, &dwNbBytesReadden, NULL)) || (dwNbBytesReadden<1)));
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LWIP_DEBUGF( SIO_DEBUG, ("sio_recv()=%lu\n", (DWORD)byte));
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return byte;
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}
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u32_t sio_read(sio_fd_t psio, u8_t * data, u32_t len)
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{ DWORD dwNbBytesReadden = 0;
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LWIP_DEBUGF( SIO_DEBUG, ("sio_read()...\n"));
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ReadFile( (HANDLE)(psio), data, len, &dwNbBytesReadden, NULL);
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LWIP_DEBUGF( SIO_DEBUG, ("sio_read()=%lu bytes\n", dwNbBytesReadden));
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return dwNbBytesReadden;
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}
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u32_t sio_write(sio_fd_t psio, u8_t * data, u32_t len)
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{ DWORD dwNbBytesWritten = 0;
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LWIP_DEBUGF( SIO_DEBUG, ("sio_write()...\n"));
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WriteFile( (HANDLE)(psio), data, len, &dwNbBytesWritten, NULL);
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LWIP_DEBUGF( SIO_DEBUG, ("sio_write()=%lu bytes\n", dwNbBytesWritten));
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return dwNbBytesWritten;
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}
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void sio_read_abort(sio_fd_t psio)
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{ LWIP_UNUSED_ARG(psio);
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LWIP_DEBUGF( SIO_DEBUG, ("sio_read_abort() !!!!!...\n"));
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sio_abort=1;
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return;
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}
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void ppp_trace( int level, const char *format, ...)
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{ int len;
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char buffer[1024];
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va_list argList;
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LWIP_UNUSED_ARG(level);
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va_start ( argList, format);
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len=vsprintf( buffer, format, argList);
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buffer[len-1]='\0';
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va_end ( argList);
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printf("%s\n", buffer);
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}
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int snprintf( char *buffer, size_t count, const char *format, ...)
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{ int len;
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va_list argList;
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LWIP_UNUSED_ARG(count);
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va_start ( argList, format);
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len=vsprintf( buffer, format, argList);
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buffer[len-1]='\0';
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va_end ( argList);
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return len;
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}
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