+static int set_fallback_dns(Manager *m, const char *string) {
+ char *word, *state;
+ size_t length;
+ int r;
+
+ assert(m);
+ assert(string);
+
+ FOREACH_WORD_QUOTED(word, length, string, state) {
+ _cleanup_address_free_ Address *address = NULL;
+ Address *tail;
+ _cleanup_free_ char *addrstr = NULL;
+
+ r = address_new_dynamic(&address);
+ if (r < 0)
+ return r;
+
+ addrstr = strndup(word, length);
+ if (!addrstr)
+ return -ENOMEM;
+
+ r = net_parse_inaddr(addrstr, &address->family, &address->in_addr);
+ if (r < 0) {
+ log_debug("Ignoring invalid DNS address '%s'", addrstr);
+ continue;
+ }
+
+ LIST_FIND_TAIL(addresses, m->fallback_dns, tail);
+ LIST_INSERT_AFTER(addresses, m->fallback_dns, tail, address);
+ address = NULL;
+ }
+
+ return 0;
+}
+
+int config_parse_dnsv(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Manager *m = userdata;
+ Address *address;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(m);
+
+ while ((address = m->fallback_dns)) {
+ LIST_REMOVE(addresses, m->fallback_dns, address);
+ address_free(address);
+ }
+
+ set_fallback_dns(m, rvalue);
+
+ return 0;
+}
+
+static int manager_parse_config_file(Manager *m) {
+ static const char fn[] = "/etc/systemd/networkd.conf";
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ assert(m);
+
+ f = fopen(fn, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_warning("Failed to open configuration file %s: %m", fn);
+ return -errno;
+ }
+
+ r = config_parse(NULL, fn, f, "Network\0", config_item_perf_lookup,
+ (void*) networkd_gperf_lookup, false, false, m);
+ if (r < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ return r;
+}
+