www.pudn.com > NETINFO.rar > adaplist.cpp

#include "adaplist.h" 
 
 
int GetAdapterCount() 
{ 
	char error[PCAP_ERRBUF_SIZE]; 
	void* adapterList = pcap_lookupdev(error); 
	DWORD dwVersion=GetVersion();		//get the OS version 
	DWORD dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion))); 
	int count = 0; 
	if (dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4)// Windows '95 
	{ 
		//parse the string with the adapters - ASCII version 
		char *str = (char*)adapterList; 
		while( strcmp(str, "") != 0 ) 
		{ 
			str += strlen(str)+1; 
			count++; 
		} 
	} 
	else 
	{ 
		//parse the string with the adapters - UNICODE version 
		WCHAR *str = (WCHAR*)adapterList; 
		while( wcscmp(str, L"") != 0 ) 
		{ 
			str += wcslen(str)+1; 
			count++; 
		} 
	} 
	return count; 
} 
 
void* GetAdapterString(int index) 
{ 
	char error[PCAP_ERRBUF_SIZE]; 
/* pcap_lookupdev(error) 
 * Return the name of a network interface attached to the system, or NULL 
 * if none can be found.  The interface must be configured up; the 
 * lowest unit number is preferred; loopback is ignored. 
 */ 
	void* adapterList = pcap_lookupdev(error); 
	DWORD dwVersion=GetVersion();		//get the OS version 
	DWORD dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion))); 
	int count = 0; 
	if (dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4)// Windows '95 
	{ 
		//parse the string with the adapters - ASCII version 
		char *str = (char*)adapterList; 
		while( strcmp(str, "") != 0 ) 
		{ 
			if( count == index ) 
				return str; 
			count++; 
			str += strlen(str)+1; 
		} 
		return NULL; 
	} 
	else 
	{ 
		//parse the string with the adapters - UNICODE version 
		WCHAR *str = (WCHAR*)adapterList; 
		while( wcscmp(str, L"") != 0 )//compare string 
		{ 
			if( count == index ) 
				return str; 
			count++; 
			str += wcslen(str)+1; 
		} 
		return NULL; 
	} 
} 
 
void PrintAdapterString() 
{ 
	char error[PCAP_ERRBUF_SIZE]; 
	void* adapterList = pcap_lookupdev(error); 
	DWORD dwVersion=GetVersion();		//get the OS version 
	DWORD dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion))); 
	int count = GetAdapterCount(); 
	for(int i=0; i= 0x80000000 && dwWindowsMajorVersion >= 4)// Windows '95 
			printf("\n%d - %s", i, GetAdapterString(i) ); 
		else 
			wprintf(L"\n%d - %s", i, GetAdapterString(i) ); 
	} 
	printf("\n"); 
}