/sys$common/syshlp/helplib.hlb

/sys$common/syshlp/helplib.hlb
TCPIP Services, Programming Interfaces, Sockets API, getservbyport(), Arguments
^*Conan The Librarian (sorry for the slow response - running on an old VAX)

 port
    The port number for which to search. This port number should be
    specified in network byte order.
 proto
    A pointer to a string containing the name of the protocol (TCP or
    UDP) for which to search.

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