socket_is

SFL
Version 2.11

`socket_is_alive`

#include "sflsock.h"
Bool
socket_is_alive (
    sock_t handle)

Synopsis

Returns TRUE if the socket is open. Returns FALSE if the socket is no longer accessible. You can use this function to check that a socket has not been closed by the other party, before doing reading or writing.

Source Code - (sflsock.c)

{
#if (defined (__UTYPE_BEOS))
    /*  BeOS 4.5 does not support the getsockopt() function                  */
    int
        rc;

    rc = setsockopt ((SOCKET) handle, SOL_SOCKET, SO_NONBLOCK,
                     (void *) &ip_nonblock, sizeof (ip_nonblock));
    return (rc == 0);

#elif (defined (DOES_SOCKETS))
    int
        socket_type,
        rc;
    argsize_t
        socket_type_size = sizeof (SOCKET);

    rc = getsockopt ((SOCKET) handle, SOL_SOCKET, SO_TYPE,
                    (char *) &socket_type, &socket_type_size);
    return (rc == 0);

#else
    return (FALSE);
#endif
}

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