《TCP IP网络编程》尹圣雨----1.第一章源码展示

hello_server_win.cpp

#include 
#include 
#include 

void ErrorHandling(char *message) {
	fputs(message, stderr);
	fputs("\n", stderr);
	exit(1);
}

int main(int argc, char * argv[]) {
	WSADATA wsaData;
	SOCKET hServSock, hClntSock;
	SOCKADDR_IN servAddr, clntAddr;

	int szClntAddr;
	char message[] = "Hello World!";
	if (argc != 2) {
		printf("Usage : %s \n", argv[0]);
		exit(1);
	}

	if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
		ErrorHandling("WSAStartup() error!");

	hServSock = socket(PF_INET, SOCK_STREAM, 0);
	if (hServSock == INVALID_SOCKET)
		ErrorHandling("socket() error!");

	memset(&servAddr, 0, sizeof(servAddr));
	servAddr.sin_family = AF_INET;
	servAddr.sin_addr.s_addr = htonl(INADDR_ANY);
	servAddr.sin_port = htons(atoi(argv[1]));

	if (bind(hServSock, (SOCKADDR *)&servAddr, sizeof(servAddr)) == SOCKET_ERROR)
		ErrorHandling("bind() error!");

	if (listen(hServSock, 5) == SOCKET_ERROR)
		ErrorHandling("listen() error!");

	szClntAddr = sizeof(clntAddr);
	hClntSock = accept(hServSock, (SOCKADDR*)&clntAddr, &szClntAddr);
	if (hClntSock == INVALID_SOCKET)
		ErrorHandling("accept() error!");
	fputs("sending message...",stderr);
	fputs("\n", stderr);
	send(hClntSock, message, sizeof(message), 0);
	closesocket(hClntSock);
	closesocket(hServSock);
	WSACleanup();
	return 0;
}

hello_client_win.cpp

#include 
#include 
#include 
void ErrorHandling(char* message);

int main(int argc, char *argv[]) {
	WSADATA wsaData;
	SOCKET hSocket;
	SOCKADDR_IN servAddr;

	char message[30];
	int strlen;
	if (argc != 3) {
		printf("Usage: %s  \n", argv[0]);
		exit(1);
	}
	
	if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
		ErrorHandling("WSAStartup() error!");

	hSocket = socket(PF_INET, SOCK_STREAM, 0);
	if (hSocket == INVALID_SOCKET)
		ErrorHandling("socket() error!");

	memset(&servAddr, 0, sizeof(servAddr));
	servAddr.sin_family = AF_INET;
	servAddr.sin_addr.s_addr = inet_addr(argv[1]);
	servAddr.sin_port = htons(atoi(argv[2]));

	if (connect(hSocket, (SOCKADDR*)&servAddr, sizeof(servAddr)) == SOCKET_ERROR)
		ErrorHandling("connect() error!");

	strlen = recv(hSocket, message, sizeof(message) - 1, 0);
	if (strlen == -1)
		ErrorHandling("read() error!");

	printf("Message from server:%s\n", message);
	closesocket(hSocket);
	WSACleanup();
	return 0;
}

void ErrorHandling(char * message) {
	fputs(message, stderr);
	fputc('\n', stderr);
	exit(1);
}

我该好好精读一本书了，现在开始写关于本书的读书笔记了。