Binds a name to a socket.
    The $QIO equivalent is the IO$_SETMODE system service with the p3
    argument.
    Format
      #include  <types.h>
      #include  <socket.h>
      int bind  ( int s, struct sockaddr *name, int namelen );
                (_DECC_V4_SOURCE)
      int bind  ( int s, const struct sockaddr *name, size_t namelen
                ); (not_DECC_V4_SOURCE)