1 /* 2 * Copyright (c) 1997, 2016, 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 #ifndef NET_UTILS_MD_H 27 #define NET_UTILS_MD_H 28 29 #include <sys/socket.h> 30 #include <sys/types.h> 31 #include <netdb.h> 32 #include <netinet/in.h> 33 #include <unistd.h> 34 35 #include <sys/poll.h> 36 37 int NET_Timeout(int s, long timeout); 38 int NET_Read(int s, void* buf, size_t len); 39 int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, 40 struct sockaddr *from, socklen_t *fromlen); 41 int NET_ReadV(int s, const struct iovec * vector, int count); 42 int NET_Send(int s, void *msg, int len, unsigned int flags); 43 int NET_SendTo(int s, const void *msg, int len, unsigned int 44 flags, const struct sockaddr *to, int tolen); 45 int NET_Writev(int s, const struct iovec * vector, int count); 46 int NET_Connect(int s, struct sockaddr *addr, int addrlen); 47 int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen); 48 int NET_SocketClose(int s); 49 int NET_Dup2(int oldfd, int newfd); 50 int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); 51 int NET_SocketAvailable(int s, jint *pbytes); 52 53 void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, 54 const char* hostname, 55 int gai_error); 56 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, 57 const char *defaultDetail); 58 59 #define NET_WAIT_READ 0x01 60 #define NET_WAIT_WRITE 0x02 61 #define NET_WAIT_CONNECT 0x04 62 63 /* Defines SO_REUSEPORT */ 64 #ifndef SO_REUSEPORT 65 #ifdef __linux__ 66 #define SO_REUSEPORT 15 67 #elif __solaris__ 68 #define SO_REUSEPORT 0x100e 69 #elif defined(AIX) || defined(MACOSX) 70 #define SO_REUSEPORT 0x0200 71 #else 72 #define SO_REUSEPORT 0 73 #endif 74 #endif 75 76 jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); 77 78 /************************************************************************ 79 * Macros and constants 80 */ 81 82 /* 83 * On 64-bit JDKs we use a much larger stack and heap buffer. 84 */ 85 #ifdef _LP64 86 #define MAX_BUFFER_LEN 65536 87 #define MAX_HEAP_BUFFER_LEN 131072 88 #else 89 #define MAX_BUFFER_LEN 8192 90 #define MAX_HEAP_BUFFER_LEN 65536 91 #endif 92 93 #ifdef AF_INET6 94 95 #define SOCKADDR union { \ 96 struct sockaddr_in him4; \ 97 struct sockaddr_in6 him6; \ 98 } 99 100 #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \ 101 sizeof(struct sockaddr_in)) 102 103 #else 104 105 #define SOCKADDR union { struct sockaddr_in him4; } 106 #define SOCKADDR_LEN sizeof(SOCKADDR) 107 108 #endif 109 110 /************************************************************************ 111 * Utilities 112 */ 113 114 #ifdef __linux__ 115 int kernelIsV24(); 116 #ifdef AF_INET6 117 int getDefaultIPv6Interface(struct in6_addr *target_addr); 118 #endif 119 #endif 120 121 #ifdef __solaris__ 122 int net_getParam(char *driver, char *param); 123 #endif 124 125 #endif /* NET_UTILS_MD_H */