example72.c

LinuxNetProgramming Linux网络编程基础实例

/* example72.c */
#include	<sys/types.h>
#include	<stdio.h>
#include	<netinet/in.h>
#include	<string.h>
#define		SERV_PORT	8080
#define		MAXLEN		1024

void client_str();
int
main()
{
	int	sockfd1, sockfd2;
	struct sockaddr_in	servaddr;
	if ((sockfd1 = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
		perror("socket error");
		exit(0);
	}
	if ((sockfd1 = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
	        perror("socket error");
	        exit(0);
	}
	bzero(&servaddr, sizeof(servaddr));
	servaddr.sin_family = AF_INET;
	servaddr.sin_port = htons(SERV_PORT);
	connect(sockfd1, (struct sockaddr *)&servaddr, sizeof(servaddr));
	connect(sockfd2, (struct sockaddr *)&servaddr, sizeof(servaddr));
	client_str(sockfd1, "1");
	client_str(sockfd2, "2");
	exit(0);
}
void
client_str(int sockfd, char *string)
{
	char	recvline[MAXLEN];
	if ((write(sockfd, string, strlen(string))) == 0) {
		perror("write error");
		exit(0);
	}
	if ((read(sockfd, recvline, MAXLEN)) == 0) {
	        perror("write error");
	        exit(0);
	}
	printf("%s\n", recvline);
}