initial commit

tests/check-collisions.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+rounds=$1
+
+if test -z "$rounds"; then
+    rounds=10
+fi
+
+make check
+
+log="collisions.log"
+name=""
+echo "Checking collisions for hash algorithms with ${rounds} rounds:" > $log
+
+for hash in c o f d s; do
+    case $hash in
+	o) name="OAT";;
+	c) name="CRC";;
+	s) name="SAX";;
+	d) name="DJB";;
+	f) name="FNV";;
+    esac
+    echo -n "Running ${rounds} x ${name} hash ... "
+    echo -n "Collisions for ${name}: " >> $log
+    ./col -l ${rounds} -${hash} \
+	| sort | uniq -c | sort | grep -v "1 " | wc -l \
+	>> $log
+    echo "done."
+done
+
+echo
+echo "Review $log for the results."