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/*
* Copyright (c) 2011 Tobias Markmann
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
#include "NATPMPNATTraversalGetPublicIPRequest.h"
#include <natpmp.h>
#include <Swiften/Base/Log.h>
#pragma GCC diagnostic ignored "-Wold-style-cast"
namespace Swift {
NATPMPNATTraversalGetPublicIPRequest::NATPMPNATTraversalGetPublicIPRequest(PlatformNATTraversalWorker* worker) : PlatformNATTraversalRequest(worker) {
}
NATPMPNATTraversalGetPublicIPRequest::~NATPMPNATTraversalGetPublicIPRequest() {
}
/*
TODO: a non-blocking solution should be possible too here
void NATPMPNATTraversalGetPublicIPRequest::run() {
// we can run directly since libnatpmp's API is asynchronous
runBlocking();
}*/
void NATPMPNATTraversalGetPublicIPRequest::runBlocking() {
boost::optional<HostAddress> result;
natpmp_t natpmp;
natpmpresp_t response;
initnatpmp(&natpmp, 0, 0);
do {
if (sendpublicaddressrequest(&natpmp) != 2) {
SWIFT_LOG(debug) << "Failed to send NAT-PMP public address request!" << std::endl;
break;
}
int r = 0;
do {
fd_set fds;
struct timeval timeout;
FD_ZERO(&fds);
FD_SET(natpmp.s, &fds);
getnatpmprequesttimeout(&natpmp, &timeout);
select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
r = readnatpmpresponseorretry(&natpmp, &response);
} while(r == NATPMP_TRYAGAIN);
if (r == 0) {
result = boost::optional<HostAddress>(HostAddress(reinterpret_cast<const unsigned char*>(&(response.pnu.publicaddress.addr)), 4));
} else {
SWIFT_LOG(debug) << "Inavlid NAT-PMP response." << std::endl;
}
} while(false);
closenatpmp(&natpmp);
onResult(result);
}
}
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Swift