From 3053bd0adb5ed1cdd11fe4288017127770ea5e67 Mon Sep 17 00:00:00 2001
From: Stéphane Raimbault <stephane.raimbault@gmail.com>
Date: Wed, 18 May 2016 16:30:22 +0200
Subject: [PATCH] CID 69145 - Argument cannot be negative in unit-test-server

---
 tests/unit-test-server.c | 4 ++++
 1 file changed, 4 insertions(+), 0 deletions(-)

diff --git a/tests/unit-test-server.c b/tests/unit-test-server.c
index ae18c4b..1f3ded5 100644
--- a/tests/unit-test-server.c
+++ b/tests/unit-test-server.c
@@ -161,6 +161,10 @@ int main(int argc, char*argv[])
                 uint8_t req[] = "\x00\x1C\x00\x00\x00\x05\xFF\x03\x02\x00\x00";
                 int req_length = 11;
                 int w_s = modbus_get_socket(ctx);
+                if (ws_s == -1) {
+                    fprintf(stderr, "Unable to get a valid socket in special test\n");
+                    continue;
+                }
 
                 /* Copy TID */
                 req[1] = query[1];
--
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