NAME
spines_recv - Receives reliable data through the Spines network
SYNOPSIS
#include "spines_lib.h"
int spines_recv(int s, void *buf, size_t len, int flags);
DESCRIPTION
The parameter s must refer to a Spines socket that is already
connected to some other Spines socket. 'buf' defines a memory
address where the message can be stored, and 'len' is the
available size for the message. flags is currently not used.
RETURN VALUE
spines_recv returns the number of bytes received or -1 if an
error occurred.