fix string truncation warning

Author: jdrouhard

src/agent/agent.cc

@@ -109,7 +109,7 @@ ProxyAgent::ProxyAgent( bool is_server, bool dummy )
       (void)rmdir( dir.c_str() );
       return;
     }
-    strncpy( sunaddr.sun_path, path.c_str(), sizeof( sunaddr.sun_path ) );
+    strncpy( sunaddr.sun_path, path.c_str(), sizeof( sunaddr.sun_path ) - 1 );
     if ( bind( sock, (struct sockaddr*)&sunaddr, sizeof( sunaddr ) ) < 0 ) {
       (void)close( sock );
       (void)rmdir( dir.c_str() );
@@ -399,7 +399,7 @@ AgentConnection::AgentConnection( std::string agent_path, uint64_t id, ProxyAgen
     (void)close( sock );
     return;
   }
-  strncpy( sunaddr.sun_path, agent_path.c_str(), sizeof( sunaddr.sun_path ) );
+  strncpy( sunaddr.sun_path, agent_path.c_str(), sizeof( sunaddr.sun_path ) - 1 );
   if ( connect( sock, (struct sockaddr*)&sunaddr, sizeof( sunaddr ) ) < 0 ) {
     (void)close( sock );
     return;