/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "jni.h"
#include "jni_util.h"
#include "jvm.h"
#include "jlong.h"
#include <io.h>
#include "sun_nio_ch_DatagramChannelImpl.h"
#include "nio.h"
#include "nio_util.h"
#include "net_util.h"
#include <winsock2.h>
{
"(Ljava/net/InetAddress;I)V");
"Ljava/net/SocketAddress;");
"cachedSenderInetAddress",
"Ljava/net/InetAddress;");
"cachedSenderPort", "I");
}
/*
* This function "purges" all outstanding ICMP port unreachable packets
* outstanding on a socket and returns JNI_TRUE if any ICMP messages
* have been purged. The rational for purging is to emulate normal BSD
* behaviour whereby receiving a "connection reset" status resets the
* socket.
*/
{
struct timeval t = { 0, 0 };
/*
* Peek at the queue to see if there is an ICMP port unreachable. If there
* is then receive it.
*/
while(1) {
break;
}
break;
}
if (WSAGetLastError() != WSAECONNRESET) {
/* some other error - we don't care here */
break;
}
}
return got_icmp;
}
{
int rv = 0;
if (rv == SOCKET_ERROR) {
} else {
/* Disable WSAECONNRESET errors as socket is no longer connected */
}
}
{
jint n;
do {
(char *)buf,
len,
0,
&sa_len);
if (n == SOCKET_ERROR) {
if (theErr == WSAEMSGSIZE) {
/* Spec says the rest of the data will be discarded... */
n = len;
} else if (theErr == WSAECONNRESET) {
} else {
return IOS_THROWN;
}
} else if (theErr == WSAEWOULDBLOCK) {
return IOS_UNAVAILABLE;
}
} while (retry);
/*
* If the source address and port match the cached address
* and port in DatagramChannelImpl then we don't need to
* create InetAddress and InetSocketAddress objects.
*/
if (senderAddr != NULL) {
senderAddr)) {
senderAddr = NULL;
} else {
senderAddr = NULL;
}
}
}
if (senderAddr == NULL) {
int port;
&port);
}
return IOS_THROWN;
}
// update cachedSenderInetAddress/cachedSenderPort
}
return n;
}
{
int sa_len;
&sa_len, preferIPv6) != 0) {
return IOS_THROWN;
}
buf,
len,
0,
sa_len);
if (rv == SOCKET_ERROR) {
if (theErr == WSAEWOULDBLOCK) {
return IOS_UNAVAILABLE;
}
}
return rv;
}