Avoid pointer comparison overflows

diff --git a/src/modules/rlm_eap/rlm_eap.c b/src/modules/rlm_eap/rlm_eap.c
index 7b6588289e16475642bec2f228651b6948f4767f..07ee7eccebe710ca242df6260d942d700cd4bc5c 100644 (file)
--- a/src/modules/rlm_eap/rlm_eap.c
+++ b/src/modules/rlm_eap/rlm_eap.c
@@ -110,7 +110,9 @@ static int eap_handler_cmp(const void *a, const void *b)
  */
 static int eap_handler_ptr_cmp(const void *a, const void *b)
 {
-  return (a - b);
+       if (a < b) return -1;
+       if (a > b) return +1;
+       return 0;
 }