From 789214cc7e34be3e916ed54dca27cf0a2ca682ef Mon Sep 17 00:00:00 2001
From: van Hauser <vh@thc.org>
Date: Thu, 6 Jul 2017 23:02:05 +0200
Subject: [PATCH] warn on BINDTODEVICE not supported in some modules

---
 hydra.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hydra.c b/hydra.c
index 61344bb..0520e28 100644
--- a/hydra.c
+++ b/hydra.c
@@ -3637,8 +3637,10 @@ int32_t main(int32_t argc, char *argv[]) {
       freeaddrinfo(res);
     }
     // restore device information if present
-    if (device != NULL)
+    if (device != NULL) {
       *(device - 1) = '%';
+      fprintf(stderr, "[WARNING] not all modules support BINDTODEVICE for IPv6 link local addresses, e.g. SSH does not\n");
+    }
   }
   if (verbose)
     printf("[VERBOSE] resolving done\n");