s4:heimdal: import lorikeet-heimdal-201011102149 (commit 5734d03c20e104c8f45533d07f2a...

[samba.git] / source4 / heimdal / lib / krb5 / data.c

diff --git a/source4/heimdal/lib/krb5/data.c b/source4/heimdal/lib/krb5/data.c
index c4c202be5db92fe7ddc294bc44675e974f00f08c..f62a5532ab6050ecfb941b0d15293ad6d64f2c5d 100644 (file)
--- a/source4/heimdal/lib/krb5/data.c
+++ b/source4/heimdal/lib/krb5/data.c
@@ -207,3 +207,22 @@ krb5_data_cmp(const krb5_data *data1, const krb5_data *data2)
        return data1->length - data2->length;
     return memcmp(data1->data, data2->data, data1->length);
 }
+
+/**
+ * Compare to data not exposing timing information from the checksum data
+ *
+ * @param data1 krb5_data to compare
+ * @param data2 krb5_data to compare
+ *
+ * @return returns zero for same data, otherwise non zero.
+ *
+ * @ingroup krb5
+ */
+
+KRB5_LIB_FUNCTION int KRB5_LIB_CALL
+krb5_data_ct_cmp(const krb5_data *data1, const krb5_data *data2)
+{
+    if (data1->length != data2->length)
+       return data1->length - data2->length;
+    return ct_memcmp(data1->data, data2->data, data1->length);
+}