From 5626d0b535480de0efa19daae4431063b56f588a Mon Sep 17 00:00:00 2001
From: Andrey Volk <andywolk@gmail.com>
Date: Thu, 20 Jul 2017 23:38:44 +0300
Subject: [PATCH] FS-10064: [mod_managed] Fix compile on windows.

---
 src/include/switch_utils.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/include/switch_utils.h b/src/include/switch_utils.h
index 057e0c58b4..5a57525577 100644
--- a/src/include/switch_utils.h
+++ b/src/include/switch_utils.h
@@ -57,7 +57,9 @@ static inline char *switch_get_hex_bytes(switch_byte_t *buf, switch_size_t datal
 	pp = new_buf;
 
 	for (p = buf; p < e && pp < ee - 4; p++) {
-		snprintf(pp, 4, "%.2x ", (int)*p);
+		if (snprintf(pp, 4, "%.2x ", (int)*p) < 0) {
+			return NULL;
+		}
 		pp += 3;
 	}
 	*(pp-1) = '\0';