39 #include <netinet/in.h>
40 #endif
41
42 #include "net_util.h"
43 #include "net_util_md.h"
44 #include "nio.h"
45 #include "nio_util.h"
46
47 #include "sun_nio_ch_DatagramChannelImpl.h"
48
49 static jfieldID dci_senderID; /* sender in sun.nio.ch.DatagramChannelImpl */
50 static jfieldID dci_senderAddrID; /* sender InetAddress in sun.nio.ch.DatagramChannelImpl */
51 static jfieldID dci_senderPortID; /* sender port in sun.nio.ch.DatagramChannelImpl */
52 static jclass isa_class; /* java.net.InetSocketAddress */
53 static jmethodID isa_ctorID; /* .InetSocketAddress(InetAddress, int) */
54
55 JNIEXPORT void JNICALL
56 Java_sun_nio_ch_DatagramChannelImpl_initIDs(JNIEnv *env, jclass clazz)
57 {
58 clazz = (*env)->FindClass(env, "java/net/InetSocketAddress");
59 isa_class = (*env)->NewGlobalRef(env, clazz);
60 isa_ctorID = (*env)->GetMethodID(env, clazz, "<init>",
61 "(Ljava/net/InetAddress;I)V");
62
63 clazz = (*env)->FindClass(env, "sun/nio/ch/DatagramChannelImpl");
64 dci_senderID = (*env)->GetFieldID(env, clazz, "sender",
65 "Ljava/net/SocketAddress;");
66 dci_senderAddrID = (*env)->GetFieldID(env, clazz,
67 "cachedSenderInetAddress",
68 "Ljava/net/InetAddress;");
69 dci_senderPortID = (*env)->GetFieldID(env, clazz,
70 "cachedSenderPort", "I");
71 }
72
73 JNIEXPORT void JNICALL
74 Java_sun_nio_ch_DatagramChannelImpl_disconnect0(JNIEnv *env, jobject this,
75 jobject fdo, jboolean isIPv6)
76 {
77 jint fd = fdval(env, fdo);
78 int rv;
79
80 #ifdef __solaris__
81 rv = connect(fd, 0, 0);
82 #endif
83
84 #if defined(__linux__) || defined(_ALLBSD_SOURCE) || defined(_AIX)
85 {
86 int len;
87 SOCKADDR sa;
88
89 memset(&sa, 0, sizeof(sa));
90
175 /*
176 * If the source address and port match the cached address
177 * and port in DatagramChannelImpl then we don't need to
178 * create InetAddress and InetSocketAddress objects.
179 */
180 senderAddr = (*env)->GetObjectField(env, this, dci_senderAddrID);
181 if (senderAddr != NULL) {
182 if (!NET_SockaddrEqualsInetAddress(env, (struct sockaddr *)&sa,
183 senderAddr)) {
184 senderAddr = NULL;
185 } else {
186 jint port = (*env)->GetIntField(env, this, dci_senderPortID);
187 if (port != NET_GetPortFromSockaddr((struct sockaddr *)&sa)) {
188 senderAddr = NULL;
189 }
190 }
191 }
192 if (senderAddr == NULL) {
193 jobject isa = NULL;
194 int port;
195 jobject ia = NET_SockaddrToInetAddress(env, (struct sockaddr *)&sa,
196 &port);
197
198 if (ia != NULL) {
199 isa = (*env)->NewObject(env, isa_class, isa_ctorID, ia, port);
200 }
201
202 if (isa == NULL) {
203 JNU_ThrowOutOfMemoryError(env, "heap allocation failed");
204 return IOS_THROWN;
205 }
206
207 (*env)->SetObjectField(env, this, dci_senderAddrID, ia);
208 (*env)->SetIntField(env, this, dci_senderPortID,
209 NET_GetPortFromSockaddr((struct sockaddr *)&sa));
210 (*env)->SetObjectField(env, this, dci_senderID, isa);
211 }
212 return n;
213 }
214
215 JNIEXPORT jint JNICALL
216 Java_sun_nio_ch_DatagramChannelImpl_send0(JNIEnv *env, jobject this,
217 jboolean preferIPv6, jobject fdo, jlong address,
218 jint len, jobject destAddress, jint destPort)
219 {
220 jint fd = fdval(env, fdo);
221 void *buf = (void *)jlong_to_ptr(address);
222 SOCKADDR sa;
223 int sa_len = SOCKADDR_LEN;
224 jint n = 0;
225
226 if (len > MAX_PACKET_LEN) {
|
39 #include <netinet/in.h>
40 #endif
41
42 #include "net_util.h"
43 #include "net_util_md.h"
44 #include "nio.h"
45 #include "nio_util.h"
46
47 #include "sun_nio_ch_DatagramChannelImpl.h"
48
49 static jfieldID dci_senderID; /* sender in sun.nio.ch.DatagramChannelImpl */
50 static jfieldID dci_senderAddrID; /* sender InetAddress in sun.nio.ch.DatagramChannelImpl */
51 static jfieldID dci_senderPortID; /* sender port in sun.nio.ch.DatagramChannelImpl */
52 static jclass isa_class; /* java.net.InetSocketAddress */
53 static jmethodID isa_ctorID; /* .InetSocketAddress(InetAddress, int) */
54
55 JNIEXPORT void JNICALL
56 Java_sun_nio_ch_DatagramChannelImpl_initIDs(JNIEnv *env, jclass clazz)
57 {
58 clazz = (*env)->FindClass(env, "java/net/InetSocketAddress");
59 CHECK_NULL(clazz);
60 isa_class = (*env)->NewGlobalRef(env, clazz);
61 if (isa_class == NULL) {
62 JNU_ThrowOutOfMemoryError(env, NULL);
63 return;
64 }
65 isa_ctorID = (*env)->GetMethodID(env, clazz, "<init>",
66 "(Ljava/net/InetAddress;I)V");
67 CHECK_NULL(isa_ctorID);
68
69 clazz = (*env)->FindClass(env, "sun/nio/ch/DatagramChannelImpl");
70 CHECK_NULL(clazz);
71 dci_senderID = (*env)->GetFieldID(env, clazz, "sender",
72 "Ljava/net/SocketAddress;");
73 CHECK_NULL(dci_senderID);
74 dci_senderAddrID = (*env)->GetFieldID(env, clazz,
75 "cachedSenderInetAddress",
76 "Ljava/net/InetAddress;");
77 CHECK_NULL(dci_senderAddrID);
78 dci_senderPortID = (*env)->GetFieldID(env, clazz,
79 "cachedSenderPort", "I");
80 CHECK_NULL(dci_senderPortID);
81 }
82
83 JNIEXPORT void JNICALL
84 Java_sun_nio_ch_DatagramChannelImpl_disconnect0(JNIEnv *env, jobject this,
85 jobject fdo, jboolean isIPv6)
86 {
87 jint fd = fdval(env, fdo);
88 int rv;
89
90 #ifdef __solaris__
91 rv = connect(fd, 0, 0);
92 #endif
93
94 #if defined(__linux__) || defined(_ALLBSD_SOURCE) || defined(_AIX)
95 {
96 int len;
97 SOCKADDR sa;
98
99 memset(&sa, 0, sizeof(sa));
100
185 /*
186 * If the source address and port match the cached address
187 * and port in DatagramChannelImpl then we don't need to
188 * create InetAddress and InetSocketAddress objects.
189 */
190 senderAddr = (*env)->GetObjectField(env, this, dci_senderAddrID);
191 if (senderAddr != NULL) {
192 if (!NET_SockaddrEqualsInetAddress(env, (struct sockaddr *)&sa,
193 senderAddr)) {
194 senderAddr = NULL;
195 } else {
196 jint port = (*env)->GetIntField(env, this, dci_senderPortID);
197 if (port != NET_GetPortFromSockaddr((struct sockaddr *)&sa)) {
198 senderAddr = NULL;
199 }
200 }
201 }
202 if (senderAddr == NULL) {
203 jobject isa = NULL;
204 int port;
205 jobject ia = NET_SockaddrToInetAddress(env, (struct sockaddr *)&sa, &port);
206 if (ia != NULL) {
207 isa = (*env)->NewObject(env, isa_class, isa_ctorID, ia, port);
208 }
209 CHECK_NULL_RETURN(isa, IOS_THROWN);
210
211 (*env)->SetObjectField(env, this, dci_senderAddrID, ia);
212 (*env)->SetIntField(env, this, dci_senderPortID,
213 NET_GetPortFromSockaddr((struct sockaddr *)&sa));
214 (*env)->SetObjectField(env, this, dci_senderID, isa);
215 }
216 return n;
217 }
218
219 JNIEXPORT jint JNICALL
220 Java_sun_nio_ch_DatagramChannelImpl_send0(JNIEnv *env, jobject this,
221 jboolean preferIPv6, jobject fdo, jlong address,
222 jint len, jobject destAddress, jint destPort)
223 {
224 jint fd = fdval(env, fdo);
225 void *buf = (void *)jlong_to_ptr(address);
226 SOCKADDR sa;
227 int sa_len = SOCKADDR_LEN;
228 jint n = 0;
229
230 if (len > MAX_PACKET_LEN) {
|