Radix cross Linux

     5         kx /*
     5         kx  * Infinite loop to receive every ICMP packet received on the socket.
     5         kx  * For every packet that's received, we just call pr_pack() to look
     5         kx  * at it and print it.
     5         kx  */
     5         kx 
     5         kx #include	"defs.h"
     5         kx 
     5         kx int recv_ping()
     5         kx {
     5         kx 	register int		n;
     5         kx #if !defined(__GLIBC__)
     5         kx 	int			fromlen;
     5         kx #else /* __GLIBC__ */
     5         kx 	socklen_t		fromlen;
     5         kx #endif /* __GLIBC__ */
     5         kx 	struct sockaddr_in	from;
     5         kx 
     5         kx 	for ( ; ; ) {
     5         kx 		fromlen = sizeof(from);
     5         kx 		if ( (n = recvfrom(sockfd, recvpack, sizeof(recvpack), 0,
     5         kx 				(struct sockaddr *) &from, &fromlen)) < 0) {
     5         kx 			if (errno == EINTR)
     5         kx 				continue;	/* normal */
     5         kx 			err_ret("recvfrom error");
     5         kx 			continue;
     5         kx 		}
     5         kx 
     5         kx 		pr_pack(recvpack, n, &from);
     5         kx 
     5         kx 	}
     5         kx }