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|
/*=============================================================================|
| PROJECT SNAP7 1.4.0 |
|==============================================================================|
| Copyright (C) 2013, 2014 Davide Nardella |
| All rights reserved. |
|==============================================================================|
| SNAP7 is free software: you can redistribute it and/or modify |
| it under the terms of the Lesser GNU General Public License as published by |
| the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| It means that you can distribute your commercial software linked with |
| SNAP7 without the requirement to distribute the source code of your |
| application and without the requirement that your application be itself |
| distributed under LGPL. |
| |
| SNAP7 is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| Lesser GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License and a |
| copy of Lesser GNU General Public License along with Snap7. |
| If not, see http://www.gnu.org/licenses/ |
|==============================================================================|
| |
| Passive Partner Example |
| |
|=============================================================================*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "snap7.h"
#ifdef OS_WINDOWS
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
#endif
S7Object Partner;
byte Buffer[65536]; // 64 K buffer
//------------------------------------------------------------------------------
// Usage syntax
//------------------------------------------------------------------------------
void Usage()
{
printf("Usage\n");
printf(" PPartner <ActiveIP>\n");
printf("Where\n");
printf(" <ActiveIP> is the address of the active partner that we are waiting for.\n");
printf("Note\n");
printf("- Local Address is set to 0.0.0.0 (the default adapter)\n");
printf("- Both Local TSAP and Remote TSAP are set to 0x1002\n");
printf("- You can create multiple passive partners bound to the same\n");
printf(" local address in the same program, but you cannot execute\n");
printf(" multiple instance of this program.\n");
getchar();
}
//------------------------------------------------------------------------------
// SysSleep (copied from snap_sysutils.cpp)
//------------------------------------------------------------------------------
void SysSleep(longword Delay_ms)
{
#ifdef OS_WINDOWS
Sleep(Delay_ms);
#else
struct timespec ts;
ts.tv_sec = (time_t)(Delay_ms / 1000);
ts.tv_nsec =(long)((Delay_ms - ts.tv_sec) * 1000000);
nanosleep(&ts, (struct timespec *)0);
#endif
}
//------------------------------------------------------------------------------
// hexdump, a very nice function, it's not mine.
// I found it on the net somewhere some time ago... thanks to the author ;-)
//------------------------------------------------------------------------------
#ifndef HEXDUMP_COLS
#define HEXDUMP_COLS 16
#endif
void hexdump(void *mem, unsigned int len)
{
unsigned int i, j;
for(i = 0; i < len + ((len % HEXDUMP_COLS) ? (HEXDUMP_COLS - len % HEXDUMP_COLS) : 0); i++)
{
/* print offset */
if(i % HEXDUMP_COLS == 0)
{
printf("0x%04x: ", i);
}
/* print hex data */
if(i < len)
{
printf("%02x ", 0xFF & ((char*)mem)[i]);
}
else /* end of block, just aligning for ASCII dump */
{
printf(" ");
}
/* print ASCII dump */
if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1))
{
for(j = i - (HEXDUMP_COLS - 1); j <= i; j++)
{
if(j >= len) /* end of block, not really printing */
{
putchar(' ');
}
else if(isprint((((char*)mem)[j] & 0x7F))) /* printable char */
{
putchar(0xFF & ((char*)mem)[j]);
}
else /* other char */
{
putchar('.');
}
}
putchar('\n');
}
}
}
//------------------------------------------------------------------------------
// Callback on data ready
//------------------------------------------------------------------------------
void S7API RecvCallback(void * usrPtr, int opResult, longword R_ID, void *pdata, int Size)
{
printf("R_ID : %d\n",R_ID);
printf("Size : %d\n",Size);
hexdump(pdata, Size);
}
//------------------------------------------------------------------------------
// Main
//------------------------------------------------------------------------------
int main(int argc, char* argv[])
{
int Error;
char text[1024];
// Get Progran args
if (argc != 2)
{
Usage();
return 1;
}
// Create the PASSIVE partner
Partner = Par_Create(0);
// Set the BRecv callback
Par_SetRecvCallback(Partner, RecvCallback, NULL);
// Start
Error=Par_StartTo(Partner, "0.0.0.0", argv[1], 0x1002, 0x1002);
if (Error == 0)
printf("Passive partner started\n");
else
{
Par_ErrorText(Error, text, 1024);
printf("%s\n",text);
};
// If you got a start error:
// Windows - most likely you ar running the server in a pc on wich is
// installed step 7 : open a command prompt and type
// "net stop s7oiehsx" (Win32) or
// "net stop s7oiehsx64" (Win64)
// And after this test :
// "net start s7oiehsx" (Win32) or
// "net start s7oiehsx64" (Win64)
// Unix - you need root rights :-( because the isotcp port (102) is
// low and so it's considered "privileged".
getchar();
Par_Stop(Partner);
Par_Destroy(&Partner);
}
|
