--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/solaris/native/sun/nio/ch/DatagramChannelImpl.c Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+#include "jni.h"
+#include "jni_util.h"
+#include "jvm.h"
+#include "jlong.h"
+
+#include <netdb.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#if __linux__
+#include <netinet/in.h>
+#endif
+
+#include "net_util.h"
+#include "net_util_md.h"
+#include "nio.h"
+#include "nio_util.h"
+
+#include "sun_nio_ch_DatagramChannelImpl.h"
+
+static jfieldID isa_addrID; /* address in java.net.InetSocketAddress */
+static jfieldID isa_portID; /* port in java.net.InetSocketAddress */
+static jfieldID dci_senderID; /* sender in sun.nio.ch.DatagramChannelImpl */
+static jfieldID dci_senderAddrID; /* sender InetAddress in sun.nio.ch.DatagramChannelImpl */
+static jfieldID dci_senderPortID; /* sender port in sun.nio.ch.DatagramChannelImpl */
+static jclass isa_class; /* java.net.InetSocketAddress */
+static jmethodID isa_ctorID; /* .InetSocketAddress(InetAddress, int) */
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_DatagramChannelImpl_initIDs(JNIEnv *env, jclass clazz)
+{
+ clazz = (*env)->FindClass(env, "java/net/InetSocketAddress");
+ isa_class = (*env)->NewGlobalRef(env, clazz);
+ isa_ctorID = (*env)->GetMethodID(env, clazz, "<init>",
+ "(Ljava/net/InetAddress;I)V");
+ isa_addrID = (*env)->GetFieldID(env, clazz, "addr",
+ "Ljava/net/InetAddress;");
+ isa_portID = (*env)->GetFieldID(env, clazz, "port", "I");
+
+ clazz = (*env)->FindClass(env, "sun/nio/ch/DatagramChannelImpl");
+ dci_senderID = (*env)->GetFieldID(env, clazz, "sender",
+ "Ljava/net/SocketAddress;");
+ dci_senderAddrID = (*env)->GetFieldID(env, clazz,
+ "cachedSenderInetAddress",
+ "Ljava/net/InetAddress;");
+ dci_senderPortID = (*env)->GetFieldID(env, clazz,
+ "cachedSenderPort", "I");
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_DatagramChannelImpl_disconnect0(JNIEnv *env, jobject this,
+ jobject fdo)
+{
+ jint fd = fdval(env, fdo);
+ int rv;
+
+#ifdef __solaris__
+ rv = connect(fd, 0, 0);
+#endif
+
+#ifdef __linux__
+ {
+ int len;
+ SOCKADDR sa;
+
+ memset(&sa, 0, sizeof(sa));
+
+#ifdef AF_INET6
+ if (ipv6_available()) {
+ struct sockaddr_in6 *him6 = (struct sockaddr_in6 *)&sa;
+ him6->sin6_family = AF_UNSPEC;
+ len = sizeof(struct sockaddr_in6);
+ } else
+#endif
+ {
+ struct sockaddr_in *him4 = (struct sockaddr_in*)&sa;
+ him4->sin_family = AF_UNSPEC;
+ len = sizeof(struct sockaddr_in);
+ }
+
+ rv = connect(fd, (struct sockaddr *)&sa, len);
+ }
+#endif
+
+ if (rv < 0)
+ handleSocketError(env, errno);
+
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_DatagramChannelImpl_receive0(JNIEnv *env, jobject this,
+ jobject fdo, jlong address,
+ jint len, jboolean connected)
+{
+ jint fd = fdval(env, fdo);
+ void *buf = (void *)jlong_to_ptr(address);
+ SOCKADDR sa;
+ int sa_len = SOCKADDR_LEN;
+ jboolean retry = JNI_FALSE;
+ jint n = 0;
+ jobject senderAddr;
+
+ if (len > MAX_PACKET_LEN) {
+ len = MAX_PACKET_LEN;
+ }
+
+ do {
+ retry = JNI_FALSE;
+ n = recvfrom(fd, buf, len, 0, (struct sockaddr *)&sa, &sa_len);
+ if (n < 0) {
+ if (errno == EWOULDBLOCK) {
+ return IOS_UNAVAILABLE;
+ }
+ if (errno == EINTR) {
+ return IOS_INTERRUPTED;
+ }
+ if (errno == ECONNREFUSED) {
+ if (connected == JNI_FALSE) {
+ retry = JNI_TRUE;
+ } else {
+ JNU_ThrowByName(env, JNU_JAVANETPKG
+ "PortUnreachableException", 0);
+ return IOS_THROWN;
+ }
+ } else {
+ return handleSocketError(env, errno);
+ }
+ }
+ } while (retry == JNI_TRUE);
+
+ /*
+ * 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.
+ */
+ senderAddr = (*env)->GetObjectField(env, this, dci_senderAddrID);
+ if (senderAddr != NULL) {
+ if (!NET_SockaddrEqualsInetAddress(env, (struct sockaddr *)&sa,
+ senderAddr)) {
+ senderAddr = NULL;
+ } else {
+ jint port = (*env)->GetIntField(env, this, dci_senderPortID);
+ if (port != NET_GetPortFromSockaddr((struct sockaddr *)&sa)) {
+ senderAddr = NULL;
+ }
+ }
+ }
+ if (senderAddr == NULL) {
+ jobject isa = NULL;
+ int port;
+ jobject ia = NET_SockaddrToInetAddress(env, (struct sockaddr *)&sa,
+ &port);
+
+ if (ia != NULL) {
+ isa = (*env)->NewObject(env, isa_class, isa_ctorID, ia, port);
+ }
+
+ if (isa == NULL) {
+ JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
+ return IOS_THROWN;
+ }
+
+ (*env)->SetObjectField(env, this, dci_senderAddrID, ia);
+ (*env)->SetIntField(env, this, dci_senderPortID,
+ NET_GetPortFromSockaddr((struct sockaddr *)&sa));
+ (*env)->SetObjectField(env, this, dci_senderID, isa);
+ }
+ return n;
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_DatagramChannelImpl_send0(JNIEnv *env, jobject this,
+ jobject fdo, jlong address,
+ jint len, jobject dest)
+{
+ jint fd = fdval(env, fdo);
+ void *buf = (void *)jlong_to_ptr(address);
+ SOCKADDR sa;
+ int sa_len = SOCKADDR_LEN;
+ jint n = 0;
+ jobject destAddress = (*env)->GetObjectField(env, dest, isa_addrID);
+ jint destPort = (*env)->GetIntField(env, dest, isa_portID);
+
+ if (len > MAX_PACKET_LEN) {
+ len = MAX_PACKET_LEN;
+ }
+
+ if (NET_InetAddressToSockaddr(env, destAddress, destPort,
+ (struct sockaddr *)&sa,
+ &sa_len, JNI_TRUE) != 0) {
+ return IOS_THROWN;
+ }
+
+ n = sendto(fd, buf, len, 0, (struct sockaddr *)&sa, sa_len);
+ if (n < 0) {
+ if (errno == EAGAIN) {
+ return IOS_UNAVAILABLE;
+ }
+ if (errno == EINTR) {
+ return IOS_INTERRUPTED;
+ }
+ if (errno == ECONNREFUSED) {
+ JNU_ThrowByName(env, JNU_JAVANETPKG "PortUnreachableException", 0);
+ return IOS_THROWN;
+ }
+ return handleSocketError(env, errno);
+ }
+ return n;
+}