Simple UDP chater

/////////////////////////////////
//UDP_server.cpp

#pragma comment(lib, "ws2_32")
#include <winsock2.h>
#include <stdio.h>

bool InitWinsock();

void main()
{
	SOCKET socket1;
	InitWinsock();
	struct sockaddr_in local;
	struct sockaddr_in from;
	int fromlen = sizeof(from);

	local.sin_family = AF_INET;
	local.sin_port = htons(1000);
	local.sin_addr.S_un.S_addr = INADDR_ANY;
	socket1 = socket(AF_INET, SOCK_DGRAM, 0);
	bind(socket1, (struct sockaddr *)&local, sizeof(local));

	while(1)
	{
		char buffer[1024] = "\0";
		char buffers[1024] = "Here is UDP_server, I got your message!";
		printf("Waiting for message from others-----------------------\n");
		if(recvfrom(socket1, buffer, sizeof(buffer), 0, (struct sockaddr *)&from, &fromlen) != SOCKET_ERROR)
		{
			printf("Recieved datagram from server:%s--%s\n", inet_ntoa(from.sin_addr), buffer);
			//给Client发信息
			sendto(socket1, buffers, sizeof(buffers), 0, (struct sockaddr *)&from, fromlen);
		}
		Sleep(500);
	}
	closesocket(socket1);
}

bool InitWinsock()
{
	int Error;
	WORD VersionRequested;
	WSADATA WsaData;
	VersionRequested = MAKEWORD(2,2);
	Error = WSAStartup(VersionRequested, &WsaData);
	if(Error != 0)
		return FALSE;
	else
		if(LOBYTE(WsaData.wVersion) != 2 || HIBYTE(WsaData.wHighVersion) != 2)
		{
			WSACleanup();
			return FALSE;
		}
	return TRUE;
}

/////////////////////////////////
//UDP_client.cpp

#pragma comment(lib, "ws2_32")
#include <winsock2.h>
#include <stdio.h>

bool InitWinsock();

void main()
{
	SOCKET socket1;
	InitWinsock();
	struct sockaddr_in server;
	int len = sizeof(server);
	server.sin_family = AF_INET;
	server.sin_port = htons(1000);
	server.sin_addr.S_un.S_addr = inet_addr("172.18.130.18");
	socket1 = socket(AF_INET, SOCK_DGRAM, 0);

	while(1)
	{
		char buffer[1024] = "\0";
		printf("input message\n");
		scanf("%s", buffer);
		if(strcmp(buffer, "bye") == 0)
			break;
		if(sendto(socket1, buffer, sizeof(buffer), 0, (struct sockaddr *)&server, len) != SOCKET_ERROR)
		{
			if(recvfrom(socket1, buffer, sizeof(buffer), 0, (struct sockaddr *)&server, &len) != SOCKET_ERROR)
				printf("rece from server:%s\n", buffer);
		}
	}
	closesocket(socket1);
}

bool InitWinsock()
{
	int Error;
	WORD VersionRequested;
	WSADATA WsaData;
	VersionRequested = MAKEWORD(2,2);
	Error = WSAStartup(VersionRequested, &WsaData);
	if(Error != 0)
		return FALSE;
	else
		if(LOBYTE(WsaData.wVersion) != 2 || HIBYTE(WsaData.wHighVersion) != 2)
		{
			WSACleanup();
			return FALSE;
		}
	return TRUE;
}