1 /* 2 * Copyright (c) 1997, 2012, 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 int NET_Timeout(JNIEnv *env, int s, long timeout); 40 int NET_Read(int s, void* buf, size_t len); 41 int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, 42 struct sockaddr *from, socklen_t *fromlen); 43 int NET_ReadV(int s, const struct iovec * vector, int count); 44 int NET_Send(int s, void *msg, int len, unsigned int flags); 45 int NET_SendTo(int s, const void *msg, int len, unsigned int 46 flags, const struct sockaddr *to, int tolen); 47 int NET_Writev(int s, const struct iovec * vector, int count); 48 int NET_Connect(int s, struct sockaddr *addr, int addrlen); 49 int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen); 50 int NET_SocketClose(int s); 51 int NET_Dup2(int oldfd, int newfd); 52 #ifdef USE_SELECT 53 extern int NET_Select(int s, fd_set *readfds, fd_set *writefds, 54 fd_set *exceptfds, struct timeval *timeout); 55 #else 56 extern int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); 57 #endif 58 59 int NET_SocketAvailable(int s, jint *pbytes); 60 61 #if defined(__linux__) && defined(AF_INET6) 62 int getDefaultIPv6Interface(struct in6_addr *target_addr); 63 #endif 64 65 #ifdef __solaris__ 66 extern int net_getParam(char *driver, char *param); 67 #endif 68 69 /* needed from libsocket on Solaris 8 */ 70 71 typedef int (*getaddrinfo_f)(const char *nodename, const char *servname, 72 const struct addrinfo *hints, struct addrinfo **res); 73 74 typedef void (*freeaddrinfo_f)(struct addrinfo *); 75 76 typedef const char * (*gai_strerror_f)(int ecode); 77 78 typedef int (*getnameinfo_f)(const struct sockaddr *, size_t, 79 char *, size_t, char *, size_t, int); 80 81 extern getaddrinfo_f getaddrinfo_ptr; 82 extern freeaddrinfo_f freeaddrinfo_ptr; 83 extern getnameinfo_f getnameinfo_ptr; 84 85 void ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, 86 const char* hostname, 87 int gai_error); 88 89 #define NET_WAIT_READ 0x01 90 #define NET_WAIT_WRITE 0x02 91 #define NET_WAIT_CONNECT 0x04 92 93 extern jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); 94 95 /************************************************************************ 96 * Macros and constants 97 */ 98 99 /* 100 * On 64-bit JDKs we use a much larger stack and heap buffer. 101 */ 102 #ifdef _LP64 103 #define MAX_BUFFER_LEN 65536 104 #define MAX_HEAP_BUFFER_LEN 131072 105 #else 106 #define MAX_BUFFER_LEN 8192 107 #define MAX_HEAP_BUFFER_LEN 65536 108 #endif 109 110 #ifdef AF_INET6 111 112 #define SOCKADDR union { \ 113 struct sockaddr_in him4; \ 114 struct sockaddr_in6 him6; \ 115 } 116 117 #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \ 118 sizeof(struct sockaddr_in)) 119 120 #else 121 122 #define SOCKADDR union { struct sockaddr_in him4; } 123 #define SOCKADDR_LEN sizeof(SOCKADDR) 124 125 #endif 126 127 /************************************************************************ 128 * Utilities 129 */ 130 #ifdef __linux__ 131 extern int kernelIsV24(); 132 #endif 133 134 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, 135 const char *defaultDetail); 136 137 138 #endif /* NET_UTILS_MD_H */