/*
* A simple client-applikation that sends a string to a server and receives its answer.
*/

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

#define SOCKET_NAME "sockli"

#define DATA "The time has come..."

int main(void) 
{ 
        int sock, len; 
        int n, result; 
        char buf[256] = DATA; 
        
        struct sockaddr_un addr = {0}; 

        sock = socket(AF_UNIX, SOCK_DGRAM, 0); 

        if(!sock) 
        { 
                perror("Socket could not be created"); 
                exit(1); 
        } 

        /* setup the address */ 
        /*addr.sin_family = AF_INET; 
        addr.sin_port = 9836; 
        addr.sin_addr.s_addr = inet_addr("127.0.0.1"); 
        len = sizeof(addr); */

 		addr.sun_family = AF_UNIX;
        strcpy(addr.sun_path, SOCKET_NAME);
        len = sizeof(addr);	

        n = sendto(sock, buf, strlen(buf), 0, (struct sockaddr *)&addr, len); 

        if(n != strlen(buf)) 
        { 
                perror("sendto failed"); 
                exit(1); 
        } 
		
        memset(buf, '\0', 256);

		unlink(SOCKET_NAME);
 		addr.sun_family = AF_UNIX;
        strcpy(addr.sun_path, SOCKET_NAME);
        len = sizeof(addr);		

        result = bind(sock, (struct sockaddr *)&addr, len); 

        if(result < 0) 
        { 
                perror("Could not bind to socket"); 
                exit(1); 
        }

        n = recvfrom(sock, buf, 256, 0, (struct sockaddr *)&addr, &len); 

        if(n < 1) 
        { 
                fprintf(stderr, "server3: received data of illigal size\n"); 
                exit(1); 
        } 
		
		printf("SERVER REPLY: %s", buf);

        close(sock); 
}