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NAME
       spines_recvfrom - Receive a message from a Spines socket


SYNOPSIS
       #include "spines_lib.h"

        int spines_recvfrom(int s, void *buf, size_t len, int flags, 
                            struct sockaddr *from, socklen_t *fromlen);


DESCRIPTION
       spines_recvfrom is used to receive a message from a Spines
       socket.  

       If from is not NULL, the source address is filled in.  The
       argument fromlen is a value-result parameter, initialized to
       the size of the buffer associ- ated with from, and modified on
       return to indicate the actual size of the address stored there.


RETURN VALUE
       spines_recvfrom returns the number of bytes received, or 
       -1 in case of an error