Duda C y Sockets

Code (c):
/*Accepting Connections*/
 
    	struct sockaddr Client;  	
		int dclient; 
		int lclient; 
 
		dclient = accept (s, &Client, &lclient);
 

Code (c):
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
 
 
int main()
{
	char answer;
	char key;
	char y = 'y';
 
 
 
 
 	printf(" .\n Welcome to the Server! .\n");
 	printf(".\n Do you want to turn on the server?.\n");
 	printf (" y/n? .\n");
 	fflush(stdin);
    scanf  ("%c",&answer);
 
 
 
    if (answer == y){
 
    	/* Creating a Socket */
    	if (socket(AF_INET, SOCK_STREAM,
    		0) < 0) {
      		printf("error %d on socketpair\n", errno);
  		}
 
    	/* Bind*/	
    	struct sockaddr name;
		int s;
		strcpy(name.sa_data, "/tmp/sock");
		s = socket(AF_UNIX, SOCK_STREAM, 0);
    	if( s < 0)
    	{
    		printf("socket create failure %d\n", errno);
 
    	}
 
    	if (bind(s, &name, strlen(name.sa_data) + sizeof(name.sa_family)) < 0)
   		{
       		printf("bind failure %d\n", errno);
     	}
 
 
       /* Listen */
 
   		if(listen(s, 1) < 0)
   		{
   		 printf ("listen error %d\n", errno);
       	}
 
    	/*Accepting Connections*/
 
    	struct sockaddr Client;  	
		int dclient; 
		int lclient; 
 
		dclient = accept (s, &Client, &lclient); 
 
		if (dclient < 0) 
			{ 
    	 		printf ("Accept error %d\n", errno);
    		}else{
    			printf (".\n Now You are connected with the Client! .\n");
			}
 
 
		/* Send & Rcv*/
 
		char buf[256];
		char recvbuf[256];
 
		printf (" Do you want to send a file? .\n");
		printf (" y/n? .\n");
		fflush (stdin);
		scanf ("%c",&key);
 
		if( key == 'y')
		{
			if(send(s, &buf, sizeof(&buf),0) < 0)
			{
				printf ("Send error %d\n", errno);
			}
		}
 
		if( recv(dclient, &recvbuf, strlen(recvbuf),0) < 0)
		{
			printf ("Reciving error %d\n", errno);
		}else{
			printf ("You recive a file .\n");
			}
	}
}