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networkd: link - serialize DNS information

This commit is contained in:
Tom Gundersen 2014-05-18 22:04:14 +02:00
parent 09bee74d7a
commit 7374f9d87c
1 changed files with 28 additions and 1 deletions
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29
src/network/networkd-link.c
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@ -1976,6 +1976,27 @@ int link_update(Link *link, sd_rtnl_message *m) {
return link_update_flags(link, m);
}
static void serialize_addresses(FILE *f, const char *key, Address *address) {
Address *ad;
assert(f);
assert(key);
if (!address)
return;
fprintf(f, "%s=", key);
LIST_FOREACH(addresses, ad, address) {
char buf[INET6_ADDRSTRLEN];
if (inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN))
fprintf(f, "%s%s", buf, (ad->addresses_next) ? " ": "");
}
fputs("\n", f);
}
int link_save(Link *link) {
_cleanup_free_ char *temp_path = NULL;
_cleanup_fclose_ FILE *f = NULL;
@ -2017,12 +2038,18 @@ int link_save(Link *link) {
"FLAGS=%u\n",
admin_state, oper_state, link->flags);
if (link->network)
serialize_addresses(f, "DNS", link->network->dns);
if (link->dhcp_lease) {
r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
if (r < 0)
goto finish;
fprintf(f, "DHCP_LEASE=%s\n", link->lease_file);
fprintf(f,
"DHCP_LEASE=%s\n"
"DHCP_USE_DNS=%s\n",
link->lease_file, yes_no(link->network->dhcp_dns));
} else
unlink(link->lease_file);