1 /* 2 * Copyright (c) 2003, 2017, 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 <stdlib.h> 27 #include <sys/types.h> 28 #include <sys/socket.h> 29 #include <unistd.h> 30 #include <fcntl.h> 31 32 #include "jni.h" 33 34 #include "jni.h" 35 #include "jni_util.h" 36 #include "net_util.h" 37 38 #include "sun_nio_ch_InheritedChannel.h" 39 40 static int matchFamily(SOCKETADDRESS *sa) { 41 return (sa->sa.sa_family == (ipv6_available() ? AF_INET6 : AF_INET)); 42 } 43 44 JNIEXPORT void JNICALL 45 Java_sun_nio_ch_InheritedChannel_initIDs(JNIEnv *env, jclass cla) 46 { 47 /* Initialize InetAddress IDs before later use of NET_XXX functions */ 48 initInetAddressIDs(env); 49 } 50 51 JNIEXPORT jobject JNICALL 52 Java_sun_nio_ch_InheritedChannel_peerAddress0(JNIEnv *env, jclass cla, jint fd) 53 { 54 SOCKETADDRESS sa; 55 socklen_t len = sizeof(SOCKETADDRESS); 56 jobject remote_ia = NULL; 57 jint remote_port; 58 59 if (getpeername(fd, &sa.sa, &len) == 0) { 60 // TODO: rename remote_ia variable and matchFamily method 61 if (matchFamily(&sa)) { 62 // TODO: move to some common function 63 jobject inetAddress = NET_SockaddrToInetAddress(env, &sa, (int *)&remote_port); 64 jclass isa_class = (*env)->FindClass(env, "java/net/InetSocketAddress"); 65 jmethodID isa_ctor = (*env)->GetMethodID(env, isa_class, "<init>", "(Ljava/net/InetAddress;I)V"); 66 remote_ia = (*env)->NewObject(env, isa_class, isa_ctor, inetAddress, remote_port); 67 } else if (sa.sa.sa_family == AF_UNIX) { 68 // TODO: move to some common function 69 jclass usa_class = (*env)->FindClass(env, "java/net/UnixSocketAddress"); 70 jmethodID usa_ctor = (*env)->GetMethodID(env, usa_class, "<init>", "()V"); 71 remote_ia = (*env)->NewObject(env, usa_class, usa_ctor); 72 } 73 } 74 75 return remote_ia; 76 } 77 78 JNIEXPORT jint JNICALL 79 Java_sun_nio_ch_InheritedChannel_soType0(JNIEnv *env, jclass cla, jint fd) 80 { 81 int sotype; 82 socklen_t arglen = sizeof(sotype); 83 if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *)&sotype, &arglen) == 0) { 84 if (sotype == SOCK_STREAM) 85 return sun_nio_ch_InheritedChannel_SOCK_STREAM; 86 if (sotype == SOCK_DGRAM) 87 return sun_nio_ch_InheritedChannel_SOCK_DGRAM; 88 } 89 return sun_nio_ch_InheritedChannel_UNKNOWN; 90 } 91 92 JNIEXPORT jint JNICALL 93 Java_sun_nio_ch_InheritedChannel_dup(JNIEnv *env, jclass cla, jint fd) 94 { 95 int newfd = dup(fd); 96 if (newfd < 0) { 97 JNU_ThrowIOExceptionWithLastError(env, "dup failed"); 98 } 99 return (jint)newfd; 100 } 101 102 JNIEXPORT void JNICALL 103 Java_sun_nio_ch_InheritedChannel_dup2(JNIEnv *env, jclass cla, jint fd, jint fd2) 104 { 105 if (dup2(fd, fd2) < 0) { 106 JNU_ThrowIOExceptionWithLastError(env, "dup2 failed"); 107 } 108 } 109 110 JNIEXPORT jint JNICALL 111 Java_sun_nio_ch_InheritedChannel_open0(JNIEnv *env, jclass cla, jstring path, jint oflag) 112 { 113 const char *str; 114 int oflag_actual; 115 116 /* convert to OS specific value */ 117 switch (oflag) { 118 case sun_nio_ch_InheritedChannel_O_RDWR : 119 oflag_actual = O_RDWR; 120 break; 121 case sun_nio_ch_InheritedChannel_O_RDONLY : 122 oflag_actual = O_RDONLY; 123 break; 124 case sun_nio_ch_InheritedChannel_O_WRONLY : 125 oflag_actual = O_WRONLY; 126 break; 127 default : 128 JNU_ThrowInternalError(env, "Unrecognized file mode"); 129 return -1; 130 } 131 132 str = JNU_GetStringPlatformChars(env, path, NULL); 133 if (str == NULL) { 134 return (jint)-1; 135 } else { 136 int fd = open(str, oflag_actual); 137 if (fd < 0) { 138 JNU_ThrowIOExceptionWithLastError(env, str); 139 } 140 JNU_ReleaseStringPlatformChars(env, path, str); 141 return (jint)fd; 142 } 143 } 144 145 JNIEXPORT void JNICALL 146 Java_sun_nio_ch_InheritedChannel_close0(JNIEnv *env, jclass cla, jint fd) 147 { 148 if (close(fd) < 0) { 149 JNU_ThrowIOExceptionWithLastError(env, "close failed"); 150 } 151 }