第一个socket服务端程序

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <winsock2.h>

#include <ws2tcpip.h>

void error_handling(char *message);

int main(int argc, char *argv[]) {

	int serv_sock;

	int clnt_sock;

	struct sockaddr_in serv_addr;

	struct sockaddr_in clnt_addr;

	socklen_t clnt_addr_size;

	char message[] = "Hello, World!";

	if (argc != 2) {

		printf("Usage : %s port\n", argv[0]);

		exit(1);

	}

	serv_sock = socket(PF_INET, SOCK_STREAM, 0);

	if (serv_sock == -1) {

		error_handling("socket() error");

	}

	return 0;

}

void error_handling(char *message) {

	fputs(message, stderr);

	fputc('\n', stderr);

	exit(1);

}