3593. [func] Update EDNS processing to better track remote server

capabilities. [RT #30655]

bin/tests/bigtest/tests.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+TOP=$( (cd ../../.. && pwd) )
+dig=${TOP}/bin/dig/dig
+
+cmd="${dig} -p 5300 @127.127.0.0 txt"
+inner() {
+	zone=$1 i=$2 to=$3
+	x=$i
+	dout=dig$x.out
+	tout=time$x.out
+	while [ $i -lt $to ]
+	do
+		case $zone in
+		.) zone=;;
+		esac
+		
+		(time -p $cmd $i.${sub}$zone > $dout ) 2> $tout
+		s=`sed -n '/real/s/[^0-9]*\([0-9]*\)\..*/\1/p' $tout`
+		case $s in
+		0);;
+		1) t1=`expr ${t1:-0} + 1`;;
+		2) t2=`expr ${t2:-0} + 1`;;
+		3) t3=`expr ${t3:-0} + 1`;;
+		*) echo $i `grep real $tout`;;
+		esac
+
+		grep "status: \(NXDOMAIN\|NOERROR\)" $dout > /dev/null || {
+			echo $cmd $i.${sub}$zone
+			cat $dout
+		}
+		i=`expr $i + 1`
+	done
+	if test ${t1:-0} -ne 0 -o ${t2:-0} -ne 0 -o ${t3:-0} -ne 0
+	then
+		echo "$x timeouts: t1=${t1:-0} t2=${t2:-0} t3=${t3:-0}"
+	fi
+}
+
+while read zone rest
+do
+	for sub in "" medium. big.
+	do
+		case $zone in
+		.) echo doing ${sub:-.};;
+		*) echo doing $sub$zone;;
+		esac
+		( inner $zone 1 100) &
+		( inner $zone 101 200) &
+		( inner $zone 201 300) &
+		( inner $zone 301 400) &
+		( inner $zone 401 500) &
+		( inner $zone 501 600) &
+		( inner $zone 601 700) &
+		( inner $zone 701 800) &
+		( inner $zone 801 900) &
+		( inner $zone 901 1000) &
+		( inner $zone 1001 1100) &
+		( inner $zone 1101 1200) &
+		( inner $zone 1201 1300) &
+		( inner $zone 1301 1400) &
+		( inner $zone 1401 1500) &
+		( inner $zone 1501 1600) &
+		( inner $zone 1601 1700) &
+		wait
+	done
+done