osf1 man page for unlinkb

unlinkb(9r)															       unlinkb(9r)

NAME
       unlinkb - STREAMS: Removes a message block from the head of a message

SYNOPSIS
       #include <sys/stream.h>

       MBLKP unlinkb(
	       MBLKP message_ptr );

ARGUMENTS
       Specifies  a  pointer  to the message block from which the first message block is to be removed. The typedef MBLKP is an alternate name for
       typedef struct msgb *.

DESCRIPTION
       The unlinkb interface removes the first message block from the message block pointed to by the message_ptr argument. The interface  returns
       a pointer to the new message block, minus the removed message block.

RETURN VALUES
       Upon  successful  completion, unlinkb returns a pointer to the new message block with the first message block removed. If there is only one
       message block in the specified message block, unlinkb returns NULL.

SEE ALSO
       Kernel Interfaces: linkb(9r)

																       unlinkb(9r)