NAME    [Toc]    [Back]

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

SYNOPSIS    [Toc]    [Back]

       #include <sys/stream.h>

       MBLKP unlinkb(
               MBLKP message_ptr );

ARGUMENTS    [Toc]    [Back]

       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    [Toc]    [Back]

       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    [Toc]    [Back]

       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    [Toc]    [Back]

       Kernel Interfaces: linkb(9r)



                                                      unlinkb(9r)