int main(int argc, char *argv[]) {
// create host entries
char *hostname = "some-random-host.local";
struct mdnsd *svr = mdnsd_start();
if (svr == NULL) {
printf("mdnsd_start() error\n");
return 1;
}
printf("mdnsd_start OK. press ENTER to add hostname & service\n");
getchar();
mdnsd_set_hostname(svr, hostname, inet_addr("192.168.0.29"));
struct rr_entry *a2_e = NULL;
a2_e = rr_create_a(create_nlabel(hostname), inet_addr("192.168.0.31"));
mdnsd_add_rr(svr, a2_e);
struct rr_entry *aaaa_e = NULL;
struct addrinfo hints;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET6;
hints.ai_flags = AI_NUMERICHOST;
struct addrinfo* results;
getaddrinfo(
"fe80::e2f8:47ff:fe20:28e0",
NULL,
&hints,
&results);
struct sockaddr_in6* addr = (struct sockaddr_in6*)results->ai_addr;
struct in6_addr v6addr = addr->sin6_addr;
freeaddrinfo(results);
aaaa_e = rr_create_aaaa(create_nlabel(hostname), &v6addr);
mdnsd_add_rr(svr, aaaa_e);
const char *txt[] = {
"path=/mywebsite",
NULL
};
struct mdns_service *svc = mdnsd_register_svc(svr, "My Website",
"_http._tcp.local", 8080, NULL, txt);
mdns_service_destroy(svc);
printf("added service and hostname. press ENTER to exit\n");
getchar();
mdnsd_stop(svr);
return 0;
}
static int mdns_tinysvcmdns_register(char *apname, int port) {
struct ifaddrs *ifalist;
struct ifaddrs *ifa;
svr = mdnsd_start();
if (svr == NULL) {
warn("tinysvcmdns: mdnsd_start() failed");
return -1;
}
// Thanks to Paul Lietar for this
// room for name + .local + NULL
char hostname[100 + 6];
gethostname(hostname, 99);
// according to POSIX, this may be truncated without a final NULL !
hostname[99] = 0;
// will not work if the hostname doesn't end in .local
char *hostend = hostname + strlen(hostname);
if ((strlen(hostname) < strlen(".local")) || (strcmp(hostend - 6, ".local") != 0)) {
strcat(hostname, ".local");
}
if (getifaddrs(&ifalist) < 0) {
warn("tinysvcmdns: getifaddrs() failed");
return -1;
}
ifa = ifalist;
// Look for an ipv4/ipv6 non-loopback interface to use as the main one.
for (ifa = ifalist; ifa != NULL; ifa = ifa->ifa_next) {
if (!(ifa->ifa_flags & IFF_LOOPBACK) && ifa->ifa_addr && ifa->ifa_addr->sa_family == AF_INET) {
uint32_t main_ip = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
mdnsd_set_hostname(svr, hostname, main_ip); // TTL should be 120 seconds
break;
} else if (!(ifa->ifa_flags & IFF_LOOPBACK) && ifa->ifa_addr &&
ifa->ifa_addr->sa_family == AF_INET6) {
struct in6_addr *addr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
mdnsd_set_hostname_v6(svr, hostname, addr); // TTL should be 120 seconds
break;
}
}
if (ifa == NULL) {
warn("tinysvcmdns: no non-loopback ipv4 or ipv6 interface found");
return -1;
}
// Skip the first one, it was already added by set_hostname
for (ifa = ifa->ifa_next; ifa != NULL; ifa = ifa->ifa_next) {
if (ifa->ifa_flags & IFF_LOOPBACK) // Skip loop-back interfaces
continue;
switch (ifa->ifa_addr->sa_family) {
case AF_INET: { // ipv4
uint32_t ip = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
struct rr_entry *a_e = rr_create_a(create_nlabel(hostname), ip); // TTL should be 120 seconds
mdnsd_add_rr(svr, a_e);
} break;
case AF_INET6: { // ipv6
struct in6_addr *addr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
struct rr_entry *aaaa_e =
rr_create_aaaa(create_nlabel(hostname), addr); // TTL should be 120 seconds
mdnsd_add_rr(svr, aaaa_e);
} break;
}
}
freeifaddrs(ifa);
char *txtwithoutmetadata[] = {MDNS_RECORD_WITHOUT_METADATA, NULL};
#ifdef CONFIG_METADATA
char *txtwithmetadata[] = {MDNS_RECORD_WITH_METADATA, NULL};
#endif
char **txt;
#ifdef CONFIG_METADATA
if (config.metadata_enabled)
txt = txtwithmetadata;
else
#endif
txt = txtwithoutmetadata;
struct mdns_service *svc =
mdnsd_register_svc(svr, apname, "_raop._tcp.local", port, NULL,
(const char **)txt); // TTL should be 75 minutes, i.e. 4500 seconds
mdns_service_destroy(svc);
return 0;
}
static int mdns_tinysvcmdns_register(char *apname, int port) {
struct ifaddrs *ifalist;
struct ifaddrs *ifa;
svr = mdnsd_start();
if (svr == NULL) {
warn("tinysvcmdns: mdnsd_start() failed");
return -1;
}
// room for name + .local + NULL
char hostname[100 + 6];
gethostname(hostname, 99);
// according to POSIX, this may be truncated without a final NULL !
hostname[99] = 0;
// will not work on iOS if the hostname doesn't end in .local
strcat(hostname, ".local");
if (getifaddrs(&ifalist) < 0)
{
warn("tinysvcmdns: getifaddrs() failed");
return -1;
}
ifa = ifalist;
// Look for an ipv4/ipv6 non-loopback interface to use as the main one.
for (ifa = ifalist; ifa != NULL; ifa = ifa->ifa_next)
{
if (!(ifa->ifa_flags & IFF_LOOPBACK) && ifa->ifa_addr &&
ifa->ifa_addr->sa_family == AF_INET)
{
uint32_t main_ip = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
mdnsd_set_hostname(svr, hostname, main_ip);
break;
}
else if (!(ifa->ifa_flags & IFF_LOOPBACK) && ifa->ifa_addr &&
ifa->ifa_addr->sa_family == AF_INET6)
{
struct in6_addr *addr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
mdnsd_set_hostname_v6(svr, hostname, addr);
break;
}
}
if (ifa == NULL)
{
warn("tinysvcmdns: no non-loopback ipv4 or ipv6 interface found");
return -1;
}
// Skip the first one, it was already added by set_hostname
for (ifa = ifa->ifa_next; ifa != NULL; ifa = ifa->ifa_next)
{
if (ifa->ifa_flags & IFF_LOOPBACK) // Skip loop-back interfaces
continue;
switch (ifa->ifa_addr->sa_family)
{
case AF_INET: { // ipv4
uint32_t ip = ((struct sockaddr_in *)ifa->ifa_addr)->sin_addr.s_addr;
struct rr_entry *a_e = rr_create_a(create_nlabel(hostname), ip);
mdnsd_add_rr(svr, a_e);
}
break;
case AF_INET6: { // ipv6
struct in6_addr *addr = &((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_addr;
struct rr_entry *aaaa_e = rr_create_aaaa(create_nlabel(hostname), addr);
mdnsd_add_rr(svr, aaaa_e);
}
break;
}
}
freeifaddrs(ifa);
const char *txt[] = { MDNS_RECORD, NULL };
struct mdns_service *svc = mdnsd_register_svc(svr,
apname,
"_raop._tcp.local",
port,
NULL,
txt);
mdns_service_destroy(svc);
return 0;
}