1 /* 2 * Copyright (c) 1997, 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 #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 #ifndef USE_SELECT 36 #include <sys/poll.h> 37 #endif 38 39 40 #if defined(__linux__) || defined(MACOSX) 41 extern int NET_Timeout(int s, long timeout); 42 extern int NET_Read(int s, void* buf, size_t len); 43 extern int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, 44 struct sockaddr *from, int *fromlen); 45 extern int NET_ReadV(int s, const struct iovec * vector, int count); 46 extern int NET_Send(int s, void *msg, int len, unsigned int flags); 47 extern int NET_SendTo(int s, const void *msg, int len, unsigned int 48 flags, const struct sockaddr *to, int tolen); 49 extern int NET_Writev(int s, const struct iovec * vector, int count); 50 extern int NET_Connect(int s, struct sockaddr *addr, int addrlen); 51 extern int NET_Accept(int s, struct sockaddr *addr, int *addrlen); 52 extern int NET_SocketClose(int s); 53 extern int NET_Dup2(int oldfd, int newfd); 54 55 #ifdef USE_SELECT 56 extern int NET_Select(int s, fd_set *readfds, fd_set *writefds, 57 fd_set *exceptfds, struct timeval *timeout); 58 #else 59 extern int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); 60 #endif 61 62 extern int tagSocket(JNIEnv* env, int fd); 63 64 #else 65 66 #define NET_Timeout JVM_Timeout 67 #define NET_Read JVM_Read 68 #define NET_RecvFrom JVM_RecvFrom 69 #define NET_ReadV readv 70 #define NET_Send JVM_Send 71 #define NET_SendTo JVM_SendTo 72 #define NET_WriteV writev 73 #define NET_Connect JVM_Connect 74 #define NET_Accept JVM_Accept 75 #define NET_SocketClose JVM_SocketClose 76 #define NET_Dup2 dup2 77 #define NET_Select select 78 #define NET_Poll poll 79 80 #define tagSocket(env,fd) (void)0 81 82 #endif 83 84 85 /* needed from libsocket on Solaris 8 */ 86 87 typedef int (*getaddrinfo_f)(const char *nodename, const char *servname, 88 const struct addrinfo *hints, struct addrinfo **res); 89 90 typedef void (*freeaddrinfo_f)(struct addrinfo *); 91 92 typedef const char * (*gai_strerror_f)(int ecode); 93 94 typedef int (*getnameinfo_f)(const struct sockaddr *, size_t, 95 char *, size_t, char *, size_t, int); 96 97 extern getaddrinfo_f getaddrinfo_ptr; 98 extern freeaddrinfo_f freeaddrinfo_ptr; 99 extern getnameinfo_f getnameinfo_ptr; 100 101 void ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, 102 const char* hostname, 103 int gai_error); 104 105 /* do we have address translation support */ 106 107 extern jboolean NET_addrtransAvailable(); 108 109 #define NET_WAIT_READ 0x01 110 #define NET_WAIT_WRITE 0x02 111 #define NET_WAIT_CONNECT 0x04 112 113 // Android-removed: unused 114 #if 0 115 extern jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); 116 #endif 117 118 /************************************************************************ 119 * Macros and constants 120 */ 121 122 /* 123 * On 64-bit JDKs we use a much larger stack and heap buffer. 124 */ 125 #ifdef _LP64 126 #define MAX_BUFFER_LEN 65536 127 #define MAX_HEAP_BUFFER_LEN 131072 128 #else 129 #define MAX_BUFFER_LEN 8192 130 #define MAX_HEAP_BUFFER_LEN 65536 131 #endif 132 133 #ifdef AF_INET6 134 135 #define SOCKADDR union { \ 136 struct sockaddr_in him4; \ 137 struct sockaddr_in6 him6; \ 138 } 139 140 #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \ 141 sizeof(struct sockaddr_in)) 142 143 #else 144 145 #define SOCKADDR union { struct sockaddr_in him4; } 146 #define SOCKADDR_LEN sizeof(SOCKADDR) 147 148 #endif 149 150 /************************************************************************ 151 * Utilities 152 */ 153 // Android-removed: unused 154 #if 0 155 #ifdef __linux__ 156 extern int kernelIsV22(); 157 extern int kernelIsV24(); 158 #endif 159 #endif 160 161 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, 162 const char *defaultDetail); 163 164 165 #endif /* NET_UTILS_MD_H */ 166
