/** Discovery control */
bool netplay_discovery_driver_ctl(enum rarch_netplay_discovery_ctl_state state, void *data)
{
char port_str[6];
if (lan_ad_client_fd < 0)
return false;
switch (state)
{
case RARCH_NETPLAY_DISCOVERY_CTL_LAN_SEND_QUERY:
{
struct addrinfo hints = {0}, *addr;
int canBroadcast = 1;
/* Get the broadcast address (IPv4 only for now) */
snprintf(port_str, 6, "%hu", (unsigned short) RARCH_DEFAULT_PORT);
if (getaddrinfo_retro("255.255.255.255", port_str, &hints, &addr) < 0)
return false;
/* Make it broadcastable */
#if defined(SOL_SOCKET) && defined(SO_BROADCAST)
if (setsockopt(lan_ad_client_fd, SOL_SOCKET, SO_BROADCAST,
(const char *)&canBroadcast, sizeof(canBroadcast)) < 0)
RARCH_WARN("Failed to set netplay discovery port to broadcast.\n");
#endif
/* Put together the request */
memcpy((void *) &ad_packet_buffer, "RANQ", 4);
ad_packet_buffer.protocol_version = htonl(NETPLAY_PROTOCOL_VERSION);
/* And send it off */
if (sendto(lan_ad_client_fd, (const char *) &ad_packet_buffer,
2*sizeof(uint32_t), 0, addr->ai_addr, addr->ai_addrlen) <
(ssize_t) (2*sizeof(uint32_t)))
RARCH_WARN("Failed to send netplay discovery response.\n");
freeaddrinfo_retro(addr);
break;
}
case RARCH_NETPLAY_DISCOVERY_CTL_LAN_GET_RESPONSES:
if (!netplay_lan_ad_client())
return false;
*((struct netplay_host_list **) data) = &discovered_hosts;
break;
case RARCH_NETPLAY_DISCOVERY_CTL_LAN_CLEAR_RESPONSES:
discovered_hosts.size = 0;
break;
default:
return false;
}
return true;
}
static bool init_udp_socket(netplay_t *netplay, const char *server,
uint16_t port)
{
char port_buf[16] = {0};
struct addrinfo hints = {0};
memset(&hints, 0, sizeof(hints));
#if defined(_WIN32) || defined(HAVE_SOCKET_LEGACY)
hints.ai_family = AF_INET;
#else
hints.ai_family = AF_UNSPEC;
#endif
hints.ai_socktype = SOCK_DGRAM;
if (!server)
hints.ai_flags = AI_PASSIVE;
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(server, port_buf, &hints, &netplay->addr) < 0)
return false;
if (!netplay->addr)
return false;
netplay->udp_fd = socket(netplay->addr->ai_family,
netplay->addr->ai_socktype, netplay->addr->ai_protocol);
if (netplay->udp_fd < 0)
{
RARCH_ERR("Failed to initialize socket.\n");
return false;
}
if (!server)
{
/* Not sure if we have to do this for UDP, but hey :) */
int yes = 1;
setsockopt(netplay->udp_fd, SOL_SOCKET, SO_REUSEADDR,
(const char*)&yes, sizeof(int));
if (bind(netplay->udp_fd, netplay->addr->ai_addr,
netplay->addr->ai_addrlen) < 0)
{
RARCH_ERR("Failed to bind socket.\n");
socket_close(netplay->udp_fd);
netplay->udp_fd = -1;
}
freeaddrinfo_retro(netplay->addr);
netplay->addr = NULL;
}
return true;
}
static bool init_tcp_socket(netplay_t *netplay, const char *server,
uint16_t port, bool spectate)
{
char port_buf[16] = {0};
bool ret = false;
const struct addrinfo *tmp_info = NULL;
struct addrinfo hints, *res = NULL;
memset(&hints, 0, sizeof(hints));
#if defined(_WIN32) || defined(HAVE_SOCKET_LEGACY)
hints.ai_family = AF_INET;
#else
hints.ai_family = AF_UNSPEC;
#endif
hints.ai_socktype = SOCK_STREAM;
if (!server)
hints.ai_flags = AI_PASSIVE;
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(server, port_buf, &hints, &res) < 0)
return false;
if (!res)
return false;
/* If "localhost" is used, it is important to check every possible
* address for IPv4/IPv6. */
tmp_info = res;
while (tmp_info)
{
int fd;
if ((fd = init_tcp_connection(tmp_info, server, netplay->spectate.enabled,
(struct sockaddr*)&netplay->other_addr,
sizeof(netplay->other_addr))) >= 0)
{
ret = true;
netplay->fd = fd;
break;
}
tmp_info = tmp_info->ai_next;
}
if (res)
freeaddrinfo_retro(res);
if (!ret)
RARCH_ERR("Failed to set up netplay sockets.\n");
return ret;
}
static bool remote_init_network(rarch_remote_t *handle,
uint16_t port, unsigned user)
{
struct addrinfo hints = {0};
char port_buf[16] = {0};
struct addrinfo *res = NULL;
int yes = 1;
port = port + user;
if (!network_init())
return false;
RARCH_LOG("Bringing up remote interface on port %hu.\n",
(unsigned short)port);
#if defined(_WIN32) || defined(HAVE_SOCKET_LEGACY)
hints.ai_family = AF_INET;
#else
hints.ai_family = AF_UNSPEC;
#endif
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_PASSIVE;
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(NULL, port_buf, &hints, &res) < 0)
goto error;
handle->net_fd[user] = socket(res->ai_family,
res->ai_socktype, res->ai_protocol);
if (handle->net_fd[user] < 0)
goto error;
if (!socket_nonblock(handle->net_fd[user]))
goto error;
setsockopt(handle->net_fd[user], SOL_SOCKET,
SO_REUSEADDR, (const char*)&yes, sizeof(int));
if (bind(handle->net_fd[user], res->ai_addr, res->ai_addrlen) < 0)
{
RARCH_ERR("Failed to bind socket.\n");
goto error;
}
freeaddrinfo_retro(res);
return true;
error:
if (res)
freeaddrinfo_retro(res);
return false;
}
static int net_http_new_socket(const char *domain, int port)
{
int fd;
#ifndef _WIN32
#ifndef VITA
struct timeval timeout;
#endif
#endif
struct addrinfo hints, *addr = NULL;
char portstr[16] = {0};
/* Initialize the network. */
if (!network_init())
return -1;
snprintf(portstr, sizeof(portstr), "%i", port);
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = 0;
if (getaddrinfo_retro(domain, portstr, &hints, &addr) < 0)
return -1;
if (!addr)
return -1;
fd = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
#ifndef _WIN32
#ifndef VITA
timeout.tv_sec=4;
timeout.tv_usec=0;
setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char*)&timeout, sizeof timeout);
#endif
#endif
if (connect(fd, addr->ai_addr, addr->ai_addrlen) != 0)
{
freeaddrinfo_retro(addr);
socket_close(fd);
return -1;
}
freeaddrinfo_retro(addr);
if (!socket_nonblock(fd))
{
socket_close(fd);
return -1;
}
return fd;
}
bool udp_send_packet(const char *host,
uint16_t port, const char *msg)
{
char port_buf[16] = {0};
struct addrinfo hints = {0};
struct addrinfo *res = NULL;
const struct addrinfo *tmp = NULL;
int fd = -1;
bool ret = true;
hints.ai_socktype = SOCK_DGRAM;
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(host, port_buf, &hints, &res) != 0)
return false;
/* Send to all possible targets.
* "localhost" might resolve to several different IPs. */
tmp = (const struct addrinfo*)res;
while (tmp)
{
ssize_t len, ret_len;
fd = socket(tmp->ai_family, tmp->ai_socktype, tmp->ai_protocol);
if (fd < 0)
{
ret = false;
goto end;
}
len = strlen(msg);
ret_len = sendto(fd, msg, len, 0, tmp->ai_addr, tmp->ai_addrlen);
if (ret_len < len)
{
ret = false;
goto end;
}
socket_close(fd);
fd = -1;
tmp = tmp->ai_next;
}
end:
freeaddrinfo_retro(res);
if (fd >= 0)
socket_close(fd);
return ret;
}
bool natt_open_port_any(struct natt_status *status,
uint16_t port, enum socket_protocol proto)
{
#if !defined(HAVE_SOCKET_LEGACY) && !defined(WIIU)
size_t i;
char port_str[6];
struct net_ifinfo list;
struct addrinfo hints = {0}, *addr;
bool ret = false;
snprintf(port_str, sizeof(port_str), "%hu", port);
/* get our interfaces */
if (!net_ifinfo_new(&list))
return false;
/* loop through them */
for (i = 0; i < list.size; i++)
{
struct net_ifinfo_entry *entry = list.entries + i;
/* ignore localhost */
if ( string_is_equal(entry->host, "127.0.0.1") ||
string_is_equal(entry->host, "::1"))
continue;
/* make a request for this host */
if (getaddrinfo_retro(entry->host, port_str, &hints, &addr) == 0)
{
ret = natt_open_port(status, addr->ai_addr,
addr->ai_addrlen, proto) || ret;
freeaddrinfo_retro(addr);
}
}
net_ifinfo_free(&list);
return ret;
#else
return false;
#endif
}
int socket_init(void **address, uint16_t port, const char *server, enum socket_type type)
{
char port_buf[16];
struct addrinfo hints = {0};
struct addrinfo **addrinfo = (struct addrinfo**)address;
struct addrinfo *addr = NULL;
if (!network_init())
goto error;
switch (type)
{
case SOCKET_TYPE_DATAGRAM:
hints.ai_socktype = SOCK_DGRAM;
break;
case SOCKET_TYPE_STREAM:
hints.ai_socktype = SOCK_STREAM;
break;
case SOCKET_TYPE_SEQPACKET:
/* TODO/FIXME - implement? */
break;
}
if (!server)
hints.ai_flags = AI_PASSIVE;
port_buf[0] = '\0';
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(server, port_buf, &hints, addrinfo) != 0)
goto error;
addr = (struct addrinfo*)*addrinfo;
if (!addr)
goto error;
return socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
error:
return -1;
}
static bool natt_open_port(struct natt_status *status,
struct sockaddr *addr, socklen_t addrlen, enum socket_protocol proto)
{
#ifndef HAVE_SOCKET_LEGACY
#if HAVE_MINIUPNPC
int r;
char host[PATH_MAX_LENGTH], ext_host[PATH_MAX_LENGTH],
port_str[6], ext_port_str[6];
struct addrinfo hints = {0};
const char *proto_str = NULL;
struct addrinfo *ext_addrinfo = NULL;
/* if NAT traversal is uninitialized or unavailable, oh well */
if (!urls.controlURL || !urls.controlURL[0])
return false;
/* figure out the internal info */
if (getnameinfo(addr, addrlen, host, PATH_MAX_LENGTH,
port_str, 6, NI_NUMERICHOST|NI_NUMERICSERV) != 0)
return false;
proto_str = (proto == SOCKET_PROTOCOL_UDP) ? "UDP" : "TCP";
/* add the port mapping */
r = UPNP_AddAnyPortMapping(urls.controlURL,
data.first.servicetype, port_str,
port_str, host, "retroarch",
proto_str, NULL, "3600", ext_port_str);
if (r != 0)
{
/* try the older AddPortMapping */
memcpy(ext_port_str, port_str, 6);
r = UPNP_AddPortMapping(urls.controlURL,
data.first.servicetype, port_str,
port_str, host, "retroarch",
proto_str, NULL, "3600");
}
if (r != 0)
return false;
/* get the external IP */
r = UPNP_GetExternalIPAddress(urls.controlURL,
data.first.servicetype, ext_host);
if (r != 0)
return false;
/* update the status */
if (getaddrinfo_retro(ext_host,
ext_port_str, &hints, &ext_addrinfo) != 0)
return false;
if (ext_addrinfo->ai_family == AF_INET &&
ext_addrinfo->ai_addrlen >= sizeof(struct sockaddr_in))
{
status->have_inet4 = true;
status->ext_inet4_addr = *((struct sockaddr_in *)
ext_addrinfo->ai_addr);
}
#if defined(AF_INET6) && !defined(HAVE_SOCKET_LEGACY)
else if (ext_addrinfo->ai_family == AF_INET6 &&
ext_addrinfo->ai_addrlen >= sizeof(struct sockaddr_in6))
{
status->have_inet6 = true;
status->ext_inet6_addr = *((struct sockaddr_in6 *)
ext_addrinfo->ai_addr);
}
#endif
else
{
freeaddrinfo_retro(ext_addrinfo);
return false;
}
freeaddrinfo_retro(ext_addrinfo);
return true;
#else
return false;
#endif
#else
return false;
#endif
}
/* ssdpDiscoverDevices() :
* return a chained list of all devices found or NULL if
* no devices was found.
* It is up to the caller to free the chained list
* delay is in millisecond (poll).
* UDA v1.1 says :
* The TTL for the IP packet SHOULD default to 2 and
* SHOULD be configurable. */
struct UPNPDev *
ssdpDiscoverDevices(const char * const deviceTypes[],
int delay, const char * multicastif,
int localport,
int ipv6, unsigned char ttl,
int * error,
int searchalltypes)
{
struct UPNPDev * tmp;
struct UPNPDev * devlist = 0;
unsigned int scope_id = 0;
int opt = 1;
static const char MSearchMsgFmt[] =
"M-SEARCH * HTTP/1.1\r\n"
"HOST: %s:" XSTR(SSDP_PORT) "\r\n"
"ST: %s\r\n"
"MAN: \"ssdp:discover\"\r\n"
"MX: %u\r\n"
"\r\n";
int deviceIndex;
char bufr[1536]; /* reception and emission buffer */
int sudp;
int n;
struct sockaddr_storage sockudp_r;
unsigned int mx;
#ifdef NO_GETADDRINFO
struct sockaddr_storage sockudp_w;
#else
int rv;
struct addrinfo hints, *servinfo, *p;
#endif
#ifdef _WIN32
MIB_IPFORWARDROW ip_forward;
unsigned long _ttl = (unsigned long)ttl;
#endif
int linklocal = 1;
if(error)
*error = MINISSDPC_UNKNOWN_ERROR;
if(localport==UPNP_LOCAL_PORT_SAME)
localport = SSDP_PORT;
#ifdef _WIN32
sudp = socket(ipv6 ? PF_INET6 : PF_INET, SOCK_DGRAM, IPPROTO_UDP);
#else
sudp = socket(ipv6 ? PF_INET6 : PF_INET, SOCK_DGRAM, 0);
#endif
if(sudp < 0)
{
if(error)
*error = MINISSDPC_SOCKET_ERROR;
return NULL;
}
/* reception */
memset(&sockudp_r, 0, sizeof(struct sockaddr_storage));
if(ipv6) {
struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockudp_r;
p->sin6_family = AF_INET6;
if(localport > 0 && localport < 65536)
p->sin6_port = htons((unsigned short)localport);
p->sin6_addr = in6addr_any; /* in6addr_any is not available with MinGW32 3.4.2 */
} else {
struct sockaddr_in * p = (struct sockaddr_in *)&sockudp_r;
p->sin_family = AF_INET;
if(localport > 0 && localport < 65536)
p->sin_port = htons((unsigned short)localport);
p->sin_addr.s_addr = INADDR_ANY;
}
#ifdef _WIN32
/* This code could help us to use the right Network interface for
* SSDP multicast traffic */
/* Get IP associated with the index given in the ip_forward struct
* in order to give this ip to setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF) */
if(!ipv6
&& (GetBestRoute(inet_addr("223.255.255.255"), 0, &ip_forward) == NO_ERROR)) {
DWORD dwRetVal = 0;
PMIB_IPADDRTABLE pIPAddrTable;
DWORD dwSize = 0;
#ifdef DEBUG
IN_ADDR IPAddr;
#endif
int i;
#ifdef DEBUG
printf("ifIndex=%lu nextHop=%lx \n", ip_forward.dwForwardIfIndex, ip_forward.dwForwardNextHop);
#endif
pIPAddrTable = (MIB_IPADDRTABLE *) malloc(sizeof (MIB_IPADDRTABLE));
if(pIPAddrTable) {
if (GetIpAddrTable(pIPAddrTable, &dwSize, 0) == ERROR_INSUFFICIENT_BUFFER) {
free(pIPAddrTable);
pIPAddrTable = (MIB_IPADDRTABLE *) malloc(dwSize);
}
}
if(pIPAddrTable) {
dwRetVal = GetIpAddrTable( pIPAddrTable, &dwSize, 0 );
if (dwRetVal == NO_ERROR) {
#ifdef DEBUG
printf("\tNum Entries: %ld\n", pIPAddrTable->dwNumEntries);
#endif
for (i=0; i < (int) pIPAddrTable->dwNumEntries; i++) {
#ifdef DEBUG
printf("\n\tInterface Index[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwIndex);
IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwAddr;
printf("\tIP Address[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwMask;
printf("\tSubnet Mask[%d]: \t%s\n", i, inet_ntoa(IPAddr) );
IPAddr.S_un.S_addr = (u_long) pIPAddrTable->table[i].dwBCastAddr;
printf("\tBroadCast[%d]: \t%s (%ld)\n", i, inet_ntoa(IPAddr), pIPAddrTable->table[i].dwBCastAddr);
printf("\tReassembly size[%d]:\t%ld\n", i, pIPAddrTable->table[i].dwReasmSize);
printf("\tType and State[%d]:", i);
printf("\n");
#endif
if (pIPAddrTable->table[i].dwIndex == ip_forward.dwForwardIfIndex) {
/* Set the address of this interface to be used */
struct in_addr mc_if;
memset(&mc_if, 0, sizeof(mc_if));
mc_if.s_addr = pIPAddrTable->table[i].dwAddr;
setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if));
((struct sockaddr_in *)&sockudp_r)->sin_addr.s_addr = pIPAddrTable->table[i].dwAddr;
#ifndef DEBUG
break;
#endif
}
}
}
free(pIPAddrTable);
pIPAddrTable = NULL;
}
}
#endif /* _WIN32 */
#ifdef _WIN32
if (setsockopt(sudp, SOL_SOCKET, SO_REUSEADDR, (const char *)&opt, sizeof (opt)) < 0)
#else
if (setsockopt(sudp, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt)) < 0)
#endif
{
if(error)
*error = MINISSDPC_SOCKET_ERROR;
closesocket(sudp);
return NULL;
}
#ifdef _WIN32
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_TTL, (const char *)&_ttl, sizeof(_ttl)) < 0)
#else /* _WIN32 */
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl)) < 0)
#endif /* _WIN32 */
{
/* not a fatal error */
}
if(multicastif)
{
if(ipv6) {
#if !defined(_WIN32)
/* according to MSDN, if_nametoindex() is supported since
* MS Windows Vista and MS Windows Server 2008.
* http://msdn.microsoft.com/en-us/library/bb408409%28v=vs.85%29.aspx */
unsigned int ifindex = if_nametoindex(multicastif); /* eth0, etc. */
if(setsockopt(sudp, IPPROTO_IPV6, IPV6_MULTICAST_IF, &ifindex, sizeof(ifindex)) < 0)
{
}
#else
#ifdef DEBUG
printf("Setting of multicast interface not supported in IPv6 under Windows.\n");
#endif
#endif
} else {
struct in_addr mc_if;
mc_if.s_addr = inet_addr(multicastif); /* ex: 192.168.x.x */
if(mc_if.s_addr != INADDR_NONE)
{
((struct sockaddr_in *)&sockudp_r)->sin_addr.s_addr = mc_if.s_addr;
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if)) < 0)
{
}
} else {
#ifdef HAS_IP_MREQN
/* was not an ip address, try with an interface name */
struct ip_mreqn reqn; /* only defined with -D_BSD_SOURCE or -D_GNU_SOURCE */
memset(&reqn, 0, sizeof(struct ip_mreqn));
reqn.imr_ifindex = if_nametoindex(multicastif);
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&reqn, sizeof(reqn)) < 0)
{
}
#elif !defined(_WIN32)
struct ifreq ifr;
int ifrlen = sizeof(ifr);
strncpy(ifr.ifr_name, multicastif, IFNAMSIZ);
ifr.ifr_name[IFNAMSIZ-1] = '\0';
if(ioctl(sudp, SIOCGIFADDR, &ifr, &ifrlen) < 0)
{
}
mc_if.s_addr = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if)) < 0)
{
}
#else /* _WIN32 */
#ifdef DEBUG
printf("Setting of multicast interface not supported with interface name.\n");
#endif
#endif /* #ifdef HAS_IP_MREQN / !defined(_WIN32) */
}
}
}
/* Before sending the packed, we first "bind" in order to be able
* to receive the response */
if (bind(sudp, (const struct sockaddr *)&sockudp_r,
ipv6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in)) != 0)
{
if(error)
*error = MINISSDPC_SOCKET_ERROR;
closesocket(sudp);
return NULL;
}
if(error)
*error = MINISSDPC_SUCCESS;
/* Calculating maximum response time in seconds */
mx = ((unsigned int)delay) / 1000u;
if(mx == 0) {
mx = 1;
delay = 1000;
}
/* receiving SSDP response packet */
for(deviceIndex = 0; deviceTypes[deviceIndex]; deviceIndex++) {
/* sending the SSDP M-SEARCH packet */
n = snprintf(bufr, sizeof(bufr),
MSearchMsgFmt,
ipv6 ?
(linklocal ? "[" UPNP_MCAST_LL_ADDR "]" : "[" UPNP_MCAST_SL_ADDR "]")
: UPNP_MCAST_ADDR,
deviceTypes[deviceIndex], mx);
if ((unsigned int)n >= sizeof(bufr)) {
if(error)
*error = MINISSDPC_MEMORY_ERROR;
goto error;
}
#ifdef DEBUG
/*printf("Sending %s", bufr);*/
printf("Sending M-SEARCH request to %s with ST: %s\n",
ipv6 ?
(linklocal ? "[" UPNP_MCAST_LL_ADDR "]" : "[" UPNP_MCAST_SL_ADDR "]")
: UPNP_MCAST_ADDR,
deviceTypes[deviceIndex]);
#endif
#ifdef NO_GETADDRINFO
/* the following code is not using getaddrinfo */
/* emission */
memset(&sockudp_w, 0, sizeof(struct sockaddr_storage));
if(ipv6) {
struct sockaddr_in6 * p = (struct sockaddr_in6 *)&sockudp_w;
p->sin6_family = AF_INET6;
p->sin6_port = htons(SSDP_PORT);
inet_pton(AF_INET6,
linklocal ? UPNP_MCAST_LL_ADDR : UPNP_MCAST_SL_ADDR,
&(p->sin6_addr));
} else {
struct sockaddr_in * p = (struct sockaddr_in *)&sockudp_w;
p->sin_family = AF_INET;
p->sin_port = htons(SSDP_PORT);
p->sin_addr.s_addr = inet_addr(UPNP_MCAST_ADDR);
}
n = sendto(sudp, bufr, n, 0, &sockudp_w,
ipv6 ? sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in));
if (n < 0) {
if(error)
*error = MINISSDPC_SOCKET_ERROR;
break;
}
#else /* #ifdef NO_GETADDRINFO */
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC; /* AF_INET6 or AF_INET */
hints.ai_socktype = SOCK_DGRAM;
/*hints.ai_flags = */
if ((rv = getaddrinfo_retro(ipv6
? (linklocal ? UPNP_MCAST_LL_ADDR : UPNP_MCAST_SL_ADDR)
: UPNP_MCAST_ADDR,
XSTR(SSDP_PORT), &hints, &servinfo)) != 0) {
if(error)
*error = MINISSDPC_SOCKET_ERROR;
#ifdef _WIN32
fprintf(stderr, "getaddrinfo() failed: %d\n", rv);
#else
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(rv));
#endif
break;
}
for(p = servinfo; p; p = p->ai_next) {
n = (int)sendto(sudp, bufr, n, 0, p->ai_addr, p->ai_addrlen);
if (n < 0) {
#ifdef DEBUG
char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
if (getnameinfo(p->ai_addr, p->ai_addrlen, hbuf, sizeof(hbuf), sbuf,
sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV) == 0) {
fprintf(stderr, "host:%s port:%s\n", hbuf, sbuf);
}
#endif
continue;
}
}
freeaddrinfo(servinfo);
if(n < 0) {
if(error)
*error = MINISSDPC_SOCKET_ERROR;
break;
}
#endif /* #ifdef NO_GETADDRINFO */
/* Waiting for SSDP REPLY packet to M-SEARCH
* if searchalltypes is set, enter the loop only
* when the last deviceType is reached */
if(!searchalltypes || !deviceTypes[deviceIndex + 1]) do {
n = receivedata(sudp, bufr, sizeof(bufr), delay, &scope_id);
if (n < 0) {
/* error */
if(error)
*error = MINISSDPC_SOCKET_ERROR;
goto error;
} else if (n == 0) {
/* no data or Time Out */
#ifdef DEBUG
printf("NODATA or TIMEOUT\n");
#endif /* DEBUG */
if (devlist && !searchalltypes) {
/* found some devices, stop now*/
if(error)
*error = MINISSDPC_SUCCESS;
goto error;
}
} else {
const char * descURL=NULL;
int urlsize=0;
const char * st=NULL;
int stsize=0;
const char * usn=NULL;
int usnsize=0;
parseMSEARCHReply(bufr, n, &descURL, &urlsize, &st, &stsize, &usn, &usnsize);
if(st&&descURL) {
#ifdef DEBUG
printf("M-SEARCH Reply:\n ST: %.*s\n USN: %.*s\n Location: %.*s\n",
stsize, st, usnsize, (usn?usn:""), urlsize, descURL);
#endif /* DEBUG */
for(tmp=devlist; tmp; tmp = tmp->pNext) {
if(memcmp(tmp->descURL, descURL, urlsize) == 0 &&
tmp->descURL[urlsize] == '\0' &&
memcmp(tmp->st, st, stsize) == 0 &&
tmp->st[stsize] == '\0' &&
(usnsize == 0 || memcmp(tmp->usn, usn, usnsize) == 0) &&
tmp->usn[usnsize] == '\0')
break;
}
/* at the exit of the loop above, tmp is null if
* no duplicate device was found */
if(tmp)
continue;
tmp = (struct UPNPDev *)malloc(sizeof(struct UPNPDev)+urlsize+stsize+usnsize);
if(!tmp) {
/* memory allocation error */
if(error)
*error = MINISSDPC_MEMORY_ERROR;
goto error;
}
tmp->pNext = devlist;
tmp->descURL = tmp->buffer;
tmp->st = tmp->buffer + 1 + urlsize;
tmp->usn = tmp->st + 1 + stsize;
memcpy(tmp->buffer, descURL, urlsize);
tmp->buffer[urlsize] = '\0';
memcpy(tmp->st, st, stsize);
tmp->buffer[urlsize+1+stsize] = '\0';
if(usn != NULL)
memcpy(tmp->usn, usn, usnsize);
tmp->buffer[urlsize+1+stsize+1+usnsize] = '\0';
tmp->scope_id = scope_id;
devlist = tmp;
}
}
} while(n > 0);
if(ipv6) {
/* switch linklocal flag */
if(linklocal) {
linklocal = 0;
--deviceIndex;
} else {
linklocal = 1;
}
}
}
error:
closesocket(sudp);
return devlist;
}
static bool init_tcp_socket(netplay_t *netplay, void *direct_host,
const char *server, uint16_t port)
{
char port_buf[16];
bool ret = false;
const struct addrinfo *tmp_info = NULL;
struct addrinfo *res = NULL;
struct addrinfo hints = {0};
port_buf[0] = '\0';
if (!direct_host)
{
#ifdef HAVE_INET6
/* Default to hosting on IPv6 and IPv4 */
if (!server)
hints.ai_family = AF_INET6;
#endif
hints.ai_socktype = SOCK_STREAM;
if (!server)
hints.ai_flags = AI_PASSIVE;
snprintf(port_buf, sizeof(port_buf), "%hu", (unsigned short)port);
if (getaddrinfo_retro(server, port_buf, &hints, &res) < 0)
{
#ifdef HAVE_INET6
if (!server)
{
/* Didn't work with IPv6, try wildcard */
hints.ai_family = 0;
if (getaddrinfo_retro(server, port_buf, &hints, &res) < 0)
return false;
}
else
#endif
return false;
}
if (!res)
return false;
}
else
{
/* I'll build my own addrinfo! With blackjack and hookers! */
struct netplay_host *host = (struct netplay_host *) direct_host;
hints.ai_family = host->addr.sa_family;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = 0;
hints.ai_addrlen = host->addrlen;
hints.ai_addr = &host->addr;
res = &hints;
}
/* If we're serving on IPv6, make sure we accept all connections, including
* IPv4 */
#ifdef HAVE_INET6
if (!direct_host && !server && res->ai_family == AF_INET6)
{
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) res->ai_addr;
sin6->sin6_addr = in6addr_any;
}
#endif
/* If "localhost" is used, it is important to check every possible
* address for IPv4/IPv6. */
tmp_info = res;
while (tmp_info)
{
struct sockaddr_storage sad;
int fd = init_tcp_connection(
tmp_info,
direct_host || server,
(struct sockaddr*)&sad,
sizeof(sad));
if (fd >= 0)
{
ret = true;
if (direct_host || server)
{
netplay->connections[0].active = true;
netplay->connections[0].fd = fd;
netplay->connections[0].addr = sad;
}
else
{
netplay->listen_fd = fd;
}
break;
}
tmp_info = tmp_info->ai_next;
}
if (res && !direct_host)
freeaddrinfo_retro(res);
if (!ret)
RARCH_ERR("Failed to set up netplay sockets.\n");
return ret;
}