svn commit: r213611 - head/usr.sbin/ypbind

[Mark Murray]

Author: markm
Date: Fri Oct  8 20:17:17 2010
New Revision: 213611
URL: http://svn.freebsd.org/changeset/base/213611

Log:
  Don't let the "available"/"not available" logs flap quite so badly. In the
  case of a multi-interfaced host, sub-second flapping can fill up the logs
  too quickly. This fixes that.

Modified:
  head/usr.sbin/ypbind/ypbind.c

Modified: head/usr.sbin/ypbind/ypbind.c
==============================================================================
--- head/usr.sbin/ypbind/ypbind.c	Fri Oct  8 20:13:42 2010	(r213610)
+++ head/usr.sbin/ypbind/ypbind.c	Fri Oct  8 20:17:17 2010	(r213611)
@@ -116,6 +116,9 @@ int ypsetmode = YPSET_NO;
 int ypsecuremode = 0;
 int ppid;
 
+#define NOT_RESPONDING_HYSTERESIS 10
+static int not_responding_count = 0;
+
 /*
  * Special restricted mode variables: when in restricted mode, only the
  * specified restricted_domain will be bound, and only the servers listed
@@ -654,9 +657,13 @@ broadcast(struct _dom_binding *ypdb)
 		return;
 	}
 
-	if (ypdb->dom_vers == -1 && (long)ypdb->dom_server_addr.sin_addr.s_addr)
-		syslog(LOG_WARNING, "NIS server [%s] for domain \"%s\" not responding",
-		inet_ntoa(ypdb->dom_server_addr.sin_addr), ypdb->dom_domain);
+	if (ypdb->dom_vers == -1 && (long)ypdb->dom_server_addr.sin_addr.s_addr) {
+		if (not_responding_count++ >= NOT_RESPONDING_HYSTERESIS) {
+			not_responding_count = NOT_RESPONDING_HYSTERESIS;
+			syslog(LOG_WARNING, "NIS server [%s] for domain \"%s\" not responding",
+			    inet_ntoa(ypdb->dom_server_addr.sin_addr), ypdb->dom_domain);
+		}
+	}
 
 	broad_domain = ypdb;
 	flock(ypdb->dom_lockfd, LOCK_UN);
@@ -886,9 +893,13 @@ rpc_received(char *dom, struct sockaddr_
 	}
 
 	/* We've recovered from a crash: inform the world. */
-	if (ypdb->dom_vers == -1 && ypdb->dom_server_addr.sin_addr.s_addr)
-		syslog(LOG_WARNING, "NIS server [%s] for domain \"%s\" OK",
-		inet_ntoa(raddrp->sin_addr), ypdb->dom_domain);
+	if (ypdb->dom_vers == -1 && ypdb->dom_server_addr.sin_addr.s_addr) {
+		if (not_responding_count >= NOT_RESPONDING_HYSTERESIS) {
+			not_responding_count = 0;
+			syslog(LOG_WARNING, "NIS server [%s] for domain \"%s\" OK",
+			    inet_ntoa(raddrp->sin_addr), ypdb->dom_domain);
+		}
+	}
 
 	bcopy(raddrp, &ypdb->dom_server_addr,
 		sizeof ypdb->dom_server_addr);