sanitize_for_ldap_filter
s_name = sanitize_for_ldap_filter(name);
s_unixname = sanitize_for_ldap_filter(unixname);
s_winname = sanitize_for_ldap_filter(winname);
s_windomain = sanitize_for_ldap_filter(windomain);
s_unixname = sanitize_for_ldap_filter(unixname);
extern char *sanitize_for_ldap_filter(const char *);