Util: Move socket setup in a common utility file Other components may need to connect sockets, the code here is generic enough that with minimal modifications can be used for non-ldap connections too. So create a sss_sockets.c/h utility file with all the non-ldap specific socket setup functions and make them available for other uses. Resolves: https://fedorahosted.org/sssd/ticket/2968 Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>