sockio(7)                                                         sockio(7)

NAME
     sockio - ioctl's that operate directly on sockets

SYNOPSIS
     #include <sys/sockio.h>

DESCRIPTION
     The ioctl's listed in this manual page apply directly to sockets,
     independent of any underlying protocol. The setsockopt call [see
     getsockopt(3N)] is the primary method for operating on sockets, rather
     than on the underlying protocol or network interface. ioctl's for a
     specific network interface or protocol are documented in the manual
     page for that interface or protocol.

     SIOCSPGRP      The argument is a pointer to an int. Set the process-
                    group ID that will subsequently receive SIGIO or SIGURG
                    signals for the socket referred to by the descriptor
                    passed to ioctl to the value of that int.

     SIOCGPGRP      The argument is a pointer to an int. Set the value of
                    that int to the process-group ID that is receiving
                    SIGIO or SIGURG signals for the socket referred to by
                    the descriptor passed to ioctl.

     SIOCCATMARK    The argument is a pointer to an int. Set the value of
                    that int to 1 if the read pointer for the socket
                    referred to by the descriptor passed to ioctl points to
                    a mark in the data stream for an out-of-band message.
                    Set the value of that int to 0 if the read pointer for
                    the socket referred to by the descriptor passed to
                    ioctl does not point to a mark in the data stream for
                    an out-of-band message.

SEE ALSO
     ioctl(2), getsockopt(3N).




















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