From 7e9744a58650597c143d693d8d729fa69f411e29 Mon Sep 17 00:00:00 2001
From: Razvan Crainea <razvan@opensips.org>
Date: Mon, 24 Oct 2016 13:01:28 +0300
Subject: [PATCH] mi_datagram: prevent socket overflow

Fixes coverity CID 150493
---
 modules/mi_datagram/mi_datagram.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/modules/mi_datagram/mi_datagram.c b/modules/mi_datagram/mi_datagram.c
index e8914fb515f..d85b9ceb9c9 100644
--- a/modules/mi_datagram/mi_datagram.c
+++ b/modules/mi_datagram/mi_datagram.c
@@ -247,6 +247,13 @@ static int mi_mod_init(void)
 				return -1;
 			}
 		}
+		/* prevent buffer overflow */
+		n = strlen(mi_socket);
+		if (n > sizeof(mi_dtgram_addr.unix_addr.sun_path)) {
+			LM_ERR("socket name too long: %d - should be less than %d chars\n",
+					n, (int)sizeof(mi_dtgram_addr.unix_addr.sun_path));
+			return -1;
+		}
 
 		/*create the unix socket address*/
 		mi_dtgram_addr.unix_addr.sun_family = AF_LOCAL;