From e93fa254548888158611e9eeb45cf5ed21a760ea Mon Sep 17 00:00:00 2001
From: jsteube <jens.steube@gmail.com>
Date: Tue, 21 Nov 2017 11:30:39 +0100
Subject: [PATCH] Allow the use of hashcat_init() without a callback function

---
 src/hashcat.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/hashcat.c b/src/hashcat.c
index a9d00d53a..912ce7486 100644
--- a/src/hashcat.c
+++ b/src/hashcat.c
@@ -811,16 +811,22 @@ static int outer_loop (hashcat_ctx_t *hashcat_ctx)
   return 0;
 }
 
+
+static void event_stub (MAYBE_UNUSED const u32 id, MAYBE_UNUSED hashcat_ctx_t *hashcat_ctx, MAYBE_UNUSED const void *buf, MAYBE_UNUSED const size_t len)
+{
+
+}
+
 int hashcat_init (hashcat_ctx_t *hashcat_ctx, void (*event) (const u32, struct hashcat_ctx *, const void *, const size_t))
 {
   if (event == NULL)
   {
-    fprintf (stderr, "Event callback function is mandatory\n");
-
-    return -1;
+    hashcat_ctx->event = event_stub;
+  }
+  else
+  {
+    hashcat_ctx->event = event;
   }
-
-  hashcat_ctx->event = event;
 
   hashcat_ctx->bitmap_ctx         = (bitmap_ctx_t *)          hcmalloc (sizeof (bitmap_ctx_t));
   hashcat_ctx->combinator_ctx     = (combinator_ctx_t *)      hcmalloc (sizeof (combinator_ctx_t));