/*
* Class: es_tid_rocksaw_net_RawSocket
* Method: __query_routing_interface
* Signature: (II[B[B)I
*/
JNIEXPORT jint JNICALL
Java_es_tid_rocksaw_net_RawSocket__1_1query_1routing_1interface
(JNIEnv *env, jclass cls, jint socket, jint family,
jbyteArray destination, jbyteArray source)
{
int result = 0;
#if defined(_WIN32)
struct sockaddr_storage ifc;
DWORD size;
struct sockaddr *saddr;
socklen_t socklen;
union {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
} sin;
if(family == PF_INET) {
socklen = sizeof(sin.sin);
saddr = init_sockaddr_in(env, &sin.sin, destination);
} else if(family == PF_INET6) {
socklen = sizeof(sin.sin6);
saddr = init_sockaddr_in6(env, &sin.sin6, destination);
} else
return -1;
result =
WSAIoctl(socket, SIO_ROUTING_INTERFACE_QUERY, saddr, socklen,
(struct sockaddr *)&ifc, sizeof(ifc), &size, NULL, NULL);
if(result != SOCKET_ERROR) {
jbyte *buf = (*env)->GetByteArrayElements(env, source, NULL);
if(ifc.ss_family == PF_INET6) {
memcpy(buf, &((struct sockaddr_in6*)&ifc)->sin6_addr,
sizeof(struct in6_addr));
} else {
memcpy(buf, &((struct sockaddr_in*)&ifc)->sin_addr,
sizeof(struct in_addr));
}
(*env)->ReleaseByteArrayElements(env, source, buf, 0);
}
#endif
return result;
}
/*
* Class: es_tid_rocksaw_net_RawSocket
* Method: __bind
* Signature: (II[B)I
*/
JNIEXPORT jint JNICALL
Java_es_tid_rocksaw_net_RawSocket__1_1bind
(JNIEnv *env, jclass cls, jint socket, jint family, jbyteArray address)
{
struct sockaddr *saddr;
socklen_t socklen;
union {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
} sin;
if(family == PF_INET) {
socklen = sizeof(sin.sin);
saddr = init_sockaddr_in(env, &sin.sin, address);
} else if(family == PF_INET6) {
socklen = sizeof(sin.sin6);
saddr = init_sockaddr_in6(env, &sin.sin6, address);
} else
return -1;
return bind(socket, saddr, socklen);
}
/*
* Class: com_savarese_rocksaw_net_RawSocket
* Method: __sendto
* Signature: (I[BIII[B)I
*/
JNIEXPORT jint JNICALL
Java_com_savarese_rocksaw_net_RawSocket__1_1sendto
(JNIEnv *env, jclass cls, jint socket,
jbyteArray data, jint offset, jint len, jint family, jbyteArray address,
jint scope_id)
{
int result;
jbyte *buf;
union {
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
} sin;
struct sockaddr *saddr;
socklen_t socklen;
if(family == PF_INET) {
socklen = sizeof(sin.sin);
saddr = init_sockaddr_in(env, &sin.sin, address);
} else if(family == PF_INET6) {
socklen = sizeof(sin.sin6);
saddr = init_sockaddr_in6(env, &sin.sin6, address, scope_id);
} else {
errno = EINVAL;
return errno;
}
buf = (*env)->GetByteArrayElements(env, data, NULL);
result = sendto(socket, buf+offset, len, 0, saddr, socklen);
(*env)->ReleaseByteArrayElements(env, data, buf, JNI_ABORT);
#if defined(_WIN32)
if(result < 0)
errno = WSAGetLastError();
#endif
return result;
}