1 /* 2 * Copyright (c) 2001, 2020, 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 "jni.h" 27 #include "jni_util.h" 28 #include "jvm.h" 29 #include "jlong.h" 30 #include <errno.h> 31 #include <sys/socket.h> 32 #include <sys/types.h> 33 #include <sys/un.h> 34 35 #define RESTARTABLE(_cmd, _result) do { \ 36 do { \ 37 _result = _cmd; \ 38 } while((_result == -1) && (errno == EINTR)); \ 39 } while(0) 40 41 /* Defines SO_REUSEPORT */ 42 #ifndef SO_REUSEPORT 43 #ifdef __linux__ 44 #define SO_REUSEPORT 15 45 #elif defined(AIX) || defined(MACOSX) 46 #define SO_REUSEPORT 0x0200 47 #else 48 #define SO_REUSEPORT 0 49 #endif 50 #endif 51 52 /* 2 bytes to allow for null at end of string and null at start of string 53 * for abstract name 54 */ 55 #define MAX_UNIX_DOMAIN_PATH_LEN \ 56 (int)(sizeof(((struct sockaddr_un *)0)->sun_path)-2) 57 58 /* NIO utility procedures */ 59 60 61 /* Defined in IOUtil.c */ 62 63 jint fdval(JNIEnv *env, jobject fdo); 64 void setfdval(JNIEnv *env, jobject fdo, jint value); 65 66 jint convertReturnVal(JNIEnv *env, jint n, jboolean reading); 67 jlong convertLongReturnVal(JNIEnv *env, jlong n, jboolean reading); 68 69 70 /* Defined in Net.c */ 71 72 jint handleSocketError(JNIEnv *env, jint errorValue); 73 74 jint handleSocketErrorWithDefault(JNIEnv *env, jint errorValue, 75 const char *defaultException); 76 77 /* Defined in UnixDomainSockets.c */ 78 79 jbyteArray sockaddrToUnixAddressBytes(JNIEnv *env, 80 struct sockaddr_un *sa, 81 socklen_t len); 82 83 jint unixSocketAddressToSockaddr(JNIEnv *env, 84 jbyteArray uaddr, 85 struct sockaddr_un *sa, 86 int *len); 87