all: create hosts.d directory if not exist

This is to prevent panic when hosts.d is not exist and client try to
create new hosts file on it.

1 files changed, 5 insertions, 0 deletions

diff --git a/rescached.go b/rescached.go
index 8519420..8b6fb4d 100644
--- a/rescached.go
+++ b/rescached.go
@@ -118,6 +118,11 @@ func (srv *Server) Start() (err error) {
 		if !errors.Is(err, os.ErrNotExist) {
 			return err
 		}
+		err = os.MkdirAll(srv.env.pathDirHosts, 0700)
+		if err != nil {
+			return err
+		}
+		err = nil
 	}
 
 	for _, hfile = range srv.env.HostsFiles {