VMS Help TCPIP Services, Programming Interfaces, Sockets API, connect(), Arguments  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 s
    A socket descriptor created with socket().
 name
    The address of a structure that specifies the name of the remote
    socket in the format specific to the address family (AF_INET).
 namelen
    The size, in bytes, of the structure pointed to by name.