+static int write_resolv_conf_contents(FILE *f, Set *dns, Set *domains) {
+ Iterator i;
+
+ fputs("# This file is managed by systemd-resolved(8). Do not edit.\n#\n"
+ "# Third party programs must not access this file directly, but\n"
+ "# only through the symlink at /etc/resolv.conf. To manage\n"
+ "# resolv.conf(5) in a different way, replace the symlink by a\n"
+ "# static file or a different symlink.\n\n", f);
+
+ if (set_isempty(dns))
+ fputs("# No DNS servers known.\n", f);
+ else {
+ DnsServer *s;
+ unsigned count = 0;
+
+ SET_FOREACH(s, dns, i)
+ write_resolv_conf_server(s, f, &count);
+ }
+
+ if (!set_isempty(domains)) {
+ unsigned length = 0, count = 0;
+ char *domain;
+
+ fputs("search", f);
+ SET_FOREACH(domain, domains, i)
+ write_resolv_conf_search(domain, f, &count, &length);
+ fputs("\n", f);
+ }
+
+ return fflush_and_check(f);
+}
+
+