/*    client_unix_dgram.c : */
#include <sys/types.h>
#include <sys/socket.h> 
#include <sys/un.h> 
#include <errno.h> 
#include <unistd.h> 			/* declaration de unlink */ 
struct sockaddr_un client = ...  ; 
struct sockaddr_un agence = ...;
char msg[] = "Reservez moi main 16 places au Volcan";
main()
{int desc;				/* descrepteur de socket */
 int lg;				/* longueur de l'adresse */
					/* creation d'une socket */
 if ((desc = socket...) == -1)
    { perror (" socket"); exit (1);} 	
 unlink("Beethoven"); 			/* la socket va etre nommee Beethoven */ 
 lg = sizeof(client);
 if ( bind(...) == -1 ) 
    { perror("bind"); exit (1);}	
 agence.sun_family = AF_UNIX;
 lg = sizeof(agence);
 					/* on envoie le message a l'agence Opera */ 
 if (sendto(...) == -1)
 {perror("sendto"); exit (1);}
}