#include <sys/socket.h>
#include <string.h>
#include <errno.h>

#include "internal/icmp_recv.h"

ssize_t
recv_receive_packet(int fd, void *buffer, size_t buffer_len,
		struct sockaddr_in *from)
{
	socklen_t from_len;
	ssize_t n;

	from_len = sizeof(*from);
	memset(from, 0, sizeof(*from));
	n = recvfrom(fd, buffer, buffer_len, 0, (struct sockaddr *)from,
				&from_len);
	if (n < 0)
	{
		int saved_errno = errno;
		return (EAGAIN == saved_errno || EWOULDBLOCK == saved_errno) ? 0 : -1;
	}
	return n;
}