From 1b58e8c3861875e05bf3ebe1687b18e1d5bac136 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Tue, 18 Apr 2023 16:48:08 +0200
Subject: [PATCH] drbg: Fix build with DEBUG_LEVEL < 4

---
 src/libstrongswan/plugins/drbg/drbg_hmac.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/libstrongswan/plugins/drbg/drbg_hmac.c b/src/libstrongswan/plugins/drbg/drbg_hmac.c
index 704adb580..a0aa05ab9 100644
--- a/src/libstrongswan/plugins/drbg/drbg_hmac.c
+++ b/src/libstrongswan/plugins/drbg/drbg_hmac.c
@@ -158,7 +158,6 @@ METHOD(drbg_t, generate, bool,
 	private_drbg_hmac_t *this, uint32_t len, uint8_t *out)
 {
 	size_t delta;
-	chunk_t output;
 
 	if (len > MAX_DRBG_BYTES)
 	{
@@ -179,7 +178,9 @@ METHOD(drbg_t, generate, bool,
 	{
 		return FALSE;
 	}
-	output = chunk_create(out, len);
+#if DEBUG_LEVEL >= 4
+	chunk_t output = chunk_create(out, len);
+#endif
 
 	while (len)
 	{
@@ -192,7 +193,7 @@ METHOD(drbg_t, generate, bool,
 		len -= delta;
 		out += delta;
 	}
-	DBG4(DBG_LIB, "HMAC_DRBG Out: %B", &output);
+	DBG4(DBG_LIB, "HMAC_DRBG out: %B", &output);
 
 	if (!update(this, chunk_empty))
 	{