From e6a2ce56b18b17f4fc8de08e81704c215643807d Mon Sep 17 00:00:00 2001
From: Feideus <erwan.ulrich@gmail.com>
Date: Sun, 24 Jun 2018 11:35:21 +0200
Subject: [PATCH] getopt blindly accepting negative input fix

---
 src/util/getopt_helpers.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/util/getopt_helpers.c b/src/util/getopt_helpers.c
index c55b22fb6..32cce65dd 100644
--- a/src/util/getopt_helpers.c
+++ b/src/util/getopt_helpers.c
@@ -748,6 +748,13 @@ set_uint (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
   unsigned int *val = scls;
 
   (void) ctx;
+  if('-' == *value)
+  {
+	FPRINTF (stderr,
+		_("Your input for the '%s' option has to be a non negative number \n"),
+		option);
+    	return GNUNET_SYSERR;
+  }
   if (1 != SSCANF (value,
                    "%u",
                    val))
-- 
2.25.1