shim.c

wifi 无线网络路由协议OLSR linux下C代码

/*
 * The olsr.org Optimized Link-State Routing daemon (olsrd)
 * Copyright (c) 2004, Thomas Lopatic ([e-mail])
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 * * Redistributions of source code must retain the above copyright 
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright 
 *   notice, this list of conditions and the following disclaimer in 
 *   the documentation and/or other materials provided with the 
 *   distribution.
 * * Neither the name of olsr.org, olsrd nor the names of its 
 *   contributors may be used to endorse or promote products derived 
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Visit http://www.olsr.org for more information.
 *
 * If you find this software useful feel free to make a donation
 * to the project. For more information see the website or contact
 * the copyright holders.
 *
 * $Id: shim.c,v 1.6 2007/03/28 14:49:15 tlopatic Exp $
 */

#include <windows.h>

int main(int argc, char *argv[])
{
	STARTUPINFO StartInfo;
	PROCESS_INFORMATION ProcInfo;
	int i;
	char *CmdLine;
	char *Walker;
	char NewCmdLine[MAX_PATH + 500];
	HANDLE Handles[2];
	unsigned long Res;
	int Quotes;

	Handles[0] = OpenEvent(EVENT_ALL_ACCESS, FALSE, "TheOlsrdShimEvent");

	if (Handles[0] == NULL)
	{
		MessageBox(NULL, "Cannot open event.", "Shim Error", MB_ICONERROR | MB_OK);
		ExitProcess(1);
	}

	CmdLine = GetCommandLine();

	Quotes = 0;
	
	while (*CmdLine != 0)
	{
		if (*CmdLine == '"')
			Quotes = !Quotes;

		else if (*CmdLine == ' ' && !Quotes)
			break;

		CmdLine++;
	}

	if (*CmdLine == 0)
	{
		MessageBox(NULL, "Missing arguments.", "Shim Error", MB_ICONERROR | MB_OK);
		ExitProcess(1);
	}

	GetModuleFileName(NULL, NewCmdLine, MAX_PATH);

	for (Walker = NewCmdLine; *Walker != 0; Walker++);

	while (*Walker != '\\')
		Walker--;

	Walker[1] = 'o';
	Walker[2] = 'l';
	Walker[3] = 's';
	Walker[4] = 'r';
	Walker[5] = 'd';
	Walker[6] = '.';
	Walker[7] = 'e';
	Walker[8] = 'x';
	Walker[9] = 'e';

	Walker[10] = ' ';

	Walker += 11;

	while ((*Walker++ = *CmdLine++) != 0);

	for (i = 0; i < sizeof (STARTUPINFO); i++)
		((char *)&StartInfo)[i] = 0;

	StartInfo.cb = sizeof (STARTUPINFO);

	if (!CreateProcess(NULL, NewCmdLine, NULL, NULL, TRUE,
		CREATE_NEW_PROCESS_GROUP, NULL, NULL, &StartInfo, &ProcInfo))
	{
		MessageBox(NULL, "Cannot execute OLSR server.", "Shim Error", MB_ICONERROR | MB_OK);
		ExitProcess(1);
	}

	Handles[1] = ProcInfo.hProcess;

	Res = WaitForMultipleObjects(2, Handles, FALSE, INFINITE);

	if (Res == WAIT_OBJECT_0)
	{
		GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, ProcInfo.dwProcessId);
		WaitForSingleObject(ProcInfo.hProcess, INFINITE);
	}
	
	CloseHandle(ProcInfo.hThread);
	CloseHandle(ProcInfo.hProcess);

	ExitProcess(0);
}