[#3506] Close lock file descriptor

diff --git a/src/lib/config/unix_command_mgr.cc b/src/lib/config/unix_command_mgr.cc
index e83bb549dd662155d3290e0c7d457b366b51f47e..221786e29b719ce3c3df3c5efe026c51dca8bf40 100644 (file)
--- a/src/lib/config/unix_command_mgr.cc
+++ b/src/lib/config/unix_command_mgr.cc
@@ -573,6 +573,9 @@ UnixCommandMgrImpl::openCommandSocket(const isc::data::ConstElementPtr& socket_i
 
     // First let's open lock file.
     std::string lock_name = getLockName();
+    if (lock_fd_ != 1) {
+        close(lock_fd_);
+    }
     lock_fd_ = open(lock_name.c_str(), O_RDONLY | O_CREAT, 0600);
     if (lock_fd_ == -1) {
         std::string errmsg = strerror(errno);