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INNDCOMM(3)									      INNDCOMM(3)

       inndcomm - INND communication part of InterNetNews library

       #include "inn/inndcomm.h"



	   int		    i;

       ICCcommand(cmd, argv, replyp)
	   char 	    cmd;
	   char 	    *argv[];
	   char 	    **replyp;

	   char 	    *mesgid;

	   char 	    *why;

	   char 	    *why;

	   char 	    *why;

       extern char *ICCfailure;

       The  routines  described  in  this  manual page are part of the InterNetNews library, lib-
       inn(3).	They are used to send commands to a running innd(8) daemon  on	the  local  host.
       The letters ``ICC'' stand for Innd Control Command.

       ICCopen creates a Unix-domain datagram socket and binds it to the server's control socket,
       if <HAVE_UNIX_DOMAIN_SOCKETS in include/config.h> is  defined.	Otherwise  it  creates	a
       named  pipe  for  communicating with the server.  It returns -1 on failure or zero on suc-
       cess.  This routine must be called before any other routine.

       ICCclose closes any descriptors that have been created by ICCopen.  It returns -1 on fail-
       ure or zero on success.

       ICCsettimeout can be called before any of the following routines to determine how long the
       library should wait before giving up on getting the server's reply.  This is done by  set-
       ting  and  catching  a  SIGALRM signal(2).  If the timeout is less then zero then no reply
       will be waited for.  The SC_SHUTDOWN, SC_XABORT, and SC_XEXEC commands do not get a  reply
       either.	 The  default,	which  can be obtained by setting the timeout to zero, is to wait
       until the server replies.

       ICCcommand sends the command cmd with parameters argv to the server.   It  returns  -1  on
       error.	If the server replies, and replyp is not NULL, it will be filled in with an allo-
       cated buffer that contains the full text of the server's reply.	This buffer is	a  string
       in  the form of ``<digits><space><text>'' where ``digits'' is the text value of the recom-
       mended exit code; zero indicates success.  Replies longer then 4000 bytes  will	be  trun-
       cated.  The possible values of cmd are defined in the ``inn/inndcomm.h'' header file.  The
       parameters for each command are described in ctlinnd(8).  This routine returns -1 on  com-
       munication failure, or the exit status sent by the server which will never be negative.

       ICCcancel sends a ``cancel'' message to the server.  Mesgid is the Message-ID of the arti-
       cle that should be cancelled.  The return value is the same as for ICCcommand.

       ICCpause, ICCreserve, and ICCgo send a ``pause,'' ``reserve,'' or ``go''  command  to  the
       server,	respectively.	If  ICCreserve	is  used, then the why value used in the ICCpause
       invocation must match; the value used in the ICCgo invocation must always match	that  the
       one  used in the ICCpause invocation.  The return value for all three routines is the same
       as for ICCcommand.

       If any routine described above fails, the ICCfailure variable  will  identify  the  system
       call that failed.

       Written	by Rich $alz <rsalz@uunet.uu.net> for InterNetNews.  This is revision 7901, dated

       ctlinnd(8), innd(8), libinn(3).

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