MEDIUM: Paramatise functions over the check of a server

Paramatise the following functions over the check of a server

* set_server_down
* set_server_up
* srv_getinter
* server_status_printf
* set_server_check_status
* set_server_disabled
* set_server_enabled

Generally the server parameter of these functions has been removed.
Where it is still needed it is obtained using check->server.

This is in preparation for associating a agent check
with a server which runs as well as the server's existing check.
By paramatising these functions they may act on each of the checks
without further significant modification.

Explanation of the SSP_O_HCHK portion of this change:

* Prior to this patch SSP_O_HCHK serves a single purpose which
  is to tell server_status_printf() weather it should print
  the details of the check of a server or not.

  With the paramatisation that this patch adds there are two cases.
  1) Printing the details of the check in which case a
     valid check parameter is needed.
  2) Not printing the details of the check in which case
     the contents check parameter are unused.

  In case 1) we could pass SSP_O_HCHK and a valid check and;
  In case 2) we could pass !SSP_O_HCHK and any value for check
  including NULL.

  If NULL is used for case 2) then SSP_O_HCHK becomes supurfulous
  and as NULL is used for case 2) SSP_O_HCHK has been removed.

Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/src/dumpstats.c b/src/dumpstats.c
index 8707e22..9a422c1 100644
--- a/src/dumpstats.c
+++ b/src/dumpstats.c
@@ -1308,14 +1308,14 @@
 					* we must restore the good status.
 					*/
 					if (sv->track->state & SRV_RUNNING) {
-						set_server_up(sv);
+						set_server_up(&sv->check);
 						sv->health = sv->rise;	/* up, but will fall down at first failure */
 					} else {
 						sv->state &= ~SRV_MAINTAIN;
-						set_server_down(sv);
+						set_server_down(&sv->check);
 					}
 				} else {
-					set_server_up(sv);
+					set_server_up(&sv->check);
 					sv->health = sv->rise;	/* up, but will fall down at first failure */
 				}
 			}
@@ -1365,7 +1365,7 @@
 			if (! (sv->state & SRV_MAINTAIN)) {
 				/* Not already in maintenance, we can change the server state */
 				sv->state |= SRV_MAINTAIN;
-				set_server_down(sv);
+				set_server_down(&sv->check);
 			}
 
 			return 1;