1 /* 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include <windows.h> 27 #include <winsock2.h> 28 #include <ctype.h> 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <malloc.h> 32 #include <sys/types.h> 33 34 #include "jni.h" 35 #include "jni_util.h" 36 #include "jvm.h" 37 #include "jlong.h" 38 39 #include "nio.h" 40 #include "nio_util.h" 41 #include "net_util.h" 42 43 #include "sun_nio_ch_ServerSocketChannelImpl.h" 44 45 46 static jfieldID fd_fdID; /* java.io.FileDescriptor.fd */ 47 static jclass isa_class; /* java.net.InetSocketAddress */ 48 static jmethodID isa_ctorID; /* InetSocketAddress(InetAddress, int) */ 49 50 51 /************************************************************** 52 * static method to store field IDs in initializers 53 */ 54 55 JNIEXPORT void JNICALL 56 Java_sun_nio_ch_ServerSocketChannelImpl_initIDs(JNIEnv *env, jclass cls) 57 { 58 cls = (*env)->FindClass(env, "java/io/FileDescriptor"); 59 CHECK_NULL(cls); 60 fd_fdID = (*env)->GetFieldID(env, cls, "fd", "I"); 61 CHECK_NULL(fd_fdID); 62 63 cls = (*env)->FindClass(env, "java/net/InetSocketAddress"); 64 CHECK_NULL(cls); 65 isa_class = (*env)->NewGlobalRef(env, cls); 66 if (isa_class == NULL) { 67 JNU_ThrowOutOfMemoryError(env, NULL); 68 return; 69 } 70 isa_ctorID = (*env)->GetMethodID(env, cls, "<init>", 71 "(Ljava/net/InetAddress;I)V"); 72 CHECK_NULL(isa_ctorID); 73 } 74 75 JNIEXPORT void JNICALL 76 Java_sun_nio_ch_ServerSocketChannelImpl_listen(JNIEnv *env, jclass cl, 77 jobject fdo, jint backlog) 78 { 79 if (listen(fdval(env,fdo), backlog) == SOCKET_ERROR) { 80 NET_ThrowNew(env, WSAGetLastError(), "listen"); 81 } 82 } 83 84 JNIEXPORT jint JNICALL 85 Java_sun_nio_ch_ServerSocketChannelImpl_accept0(JNIEnv *env, jobject this, 86 jobject ssfdo, jobject newfdo, 87 jobjectArray isaa) 88 { 89 jint ssfd = (*env)->GetIntField(env, ssfdo, fd_fdID); 90 jint newfd; 91 SOCKETADDRESS sa; 92 jobject remote_ia; 93 int remote_port; 94 jobject isa; 95 int addrlen = sizeof(sa); 96 97 memset((char *)&sa, 0, sizeof(sa)); 98 newfd = (jint)accept(ssfd, (struct sockaddr *)&sa, &addrlen); 99 if (newfd == INVALID_SOCKET) { 100 int theErr = (jint)WSAGetLastError(); 101 if (theErr == WSAEWOULDBLOCK) { 102 return IOS_UNAVAILABLE; 103 } 104 JNU_ThrowIOExceptionWithLastError(env, "Accept failed"); 105 return IOS_THROWN; 106 } 107 108 SetHandleInformation((HANDLE)(UINT_PTR)newfd, HANDLE_FLAG_INHERIT, FALSE); 109 (*env)->SetIntField(env, newfdo, fd_fdID, newfd); 110 remote_ia = NET_SockaddrToInetAddress(env, (struct sockaddr *)&sa, (int *)&remote_port); 111 CHECK_NULL_RETURN(remote_ia, IOS_THROWN); 112 113 isa = (*env)->NewObject(env, isa_class, isa_ctorID, remote_ia, remote_port); 114 CHECK_NULL_RETURN(isa, IOS_THROWN); 115 (*env)->SetObjectArrayElement(env, isaa, 0, isa); 116 return 1; 117 }