10-13.c

《Linux应用开发技术详解》附书光盘中的例程。

#include  <sys/types.h>
#include <sys/Socket.h>
#include <stdio.h>
#include <sys/un.h>
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>

int main(){
	
	int client_sockfd;
	int len;
	struct sockaddr_un server_sockaddr,cli_sockaddr;
	int result;
	char dst_module_id='B';
	char ch='1';
	char src_module_id;
	
	
	client_sockfd= Socket(AF_UNIX,SOCK_STREAM,0);
	
	cli_sockaddr.sun_family = AF_UNIX ;
	strcpy( cli_sockaddr.sun_path, "A" ) ;
	bind(client_sockfd,(struct sockaddr * )&cli_sockaddr, sizeof( cli_sockaddr ) ) ;

	server_sockaddr.sun_family=AF_UNIX;

	strcpy( server_sockaddr.sun_path, "server_Socket" ) ;
	len=sizeof(server_sockaddr);
	
	result = connect(client_sockfd,( struct sockaddr * )&server_sockaddr,len);
	if (result <0){
		printf("ClientA::error on connecting \n");	
		exit(1);
	}
	
	printf("ClientA::succeed in connecting with server\n");
	sleep(10);
	write(client_sockfd,&dst_module_id,1);
	write(client_sockfd,&ch,1); 
	read (client_sockfd,&src_module_id,1); 
	read (client_sockfd,&ch,1); 
	printf("ClientA::char from  Client %c =%c\n", src_module_id,ch);	
	close (client_sockfd);
	
}