DO NOT MERGE: hack for measurements: dump cache in plain zone format

Sometimes it's handy to dump cache in a format which can be processed
using standard tools. Don't forget fgrep -v '$DATE'.

bin/named/config.c

@@ -163,8 +163,8 @@ options {\n\
 	max-recursion-queries 100;\n\
 	max-stale-ttl 86400; /* 1 day */\n\
 	message-compression yes;\n\
-	min-ncache-ttl 0; /* 0 hours */\n\
-	min-cache-ttl 0; /* 0 seconds */\n\
+	min-ncache-ttl 86400; /* hack for measurements */\n\
+	min-cache-ttl 86400; /* hack for measurements */\n\
 	minimal-any false;\n\
 	minimal-responses no-auth-recursive;\n\
 	notify-source *;\n\

bin/named/server.c

@@ -11396,7 +11396,7 @@ resume:
 		if (dctx->dumpexpired) {
 			style = &dns_master_style_cache_with_expired;
 		} else {
-			style = &dns_master_style_cache;
+			style = &dns_master_style_full;  /* hack for measurements */
 		}
 		/* start cache dump */
 		if (dctx->view->view->cachedb != NULL) {

lib/bind9/include/bind9/check.h

@@ -19,11 +19,11 @@
 #include <isccfg/cfg.h>
 
 #ifndef MAX_MIN_CACHE_TTL
-#define MAX_MIN_CACHE_TTL 90
+#define MAX_MIN_CACHE_TTL 864000
 #endif /* MAX_MIN_CACHE_TTL */
 
 #ifndef MAX_MIN_NCACHE_TTL
-#define MAX_MIN_NCACHE_TTL 90
+#define MAX_MIN_NCACHE_TTL 864000
 #endif /* MAX_MIN_NCACHE_TTL */
 
 #ifndef MAX_MAX_NCACHE_TTL

lib/dns/rdataset.c

@@ -727,8 +727,11 @@ dns_rdataset_trimttl(dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset,
 		ttl = rrsig->timeexpire - now;
 	}
 
+	/*
 	ttl = ISC_MIN(ISC_MIN(rdataset->ttl, sigrdataset->ttl),
 		      ISC_MIN(rrsig->originalttl, ttl));
+	*/
+	ttl = 86400; /* hack for measurements */
 	rdataset->ttl = ttl;
 	sigrdataset->ttl = ttl;
 }