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-rw-r--r--src/test/test_connection.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/test/test_connection.h b/src/test/test_connection.h
index 47a5599e5f..40121e6d38 100644
--- a/src/test/test_connection.h
+++ b/src/test/test_connection.h
@@ -1,6 +1,9 @@
/* Copyright (c) 2014-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
+#ifndef TOR_TEST_CONNECTION_H
+#define TOR_TEST_CONNECTION_H
+
/** Some constants used by test_connection and helpers */
#define TEST_CONN_FAMILY (AF_INET)
#define TEST_CONN_ADDRESS "127.0.0.1"
@@ -11,3 +14,4 @@
void test_conn_lookup_addr_helper(const char *address,
int family, tor_addr_t *addr);
+#endif /* !defined(TOR_TEST_CONNECTION_H) */