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Java example source code file (InheritedChannel.c)
The InheritedChannel.c Java example source code/* * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #include <stdlib.h> #include <sys/types.h> #include <sys/socket.h> #include <unistd.h> #include <fcntl.h> #include "jni.h" #include "jni.h" #include "jni_util.h" #include "net_util.h" #include "sun_nio_ch_InheritedChannel.h" static int matchFamily(struct sockaddr *sa) { int family = sa->sa_family; #ifdef AF_INET6 if (ipv6_available()) { return (family == AF_INET6); } #endif return (family == AF_INET); } JNIEXPORT jobject JNICALL Java_sun_nio_ch_InheritedChannel_peerAddress0(JNIEnv *env, jclass cla, jint fd) { struct sockaddr *sa; socklen_t sa_len; jobject remote_ia = NULL; jint remote_port; NET_AllocSockaddr(&sa, (int *)&sa_len); if (getpeername(fd, sa, &sa_len) == 0) { if (matchFamily(sa)) { remote_ia = NET_SockaddrToInetAddress(env, sa, (int *)&remote_port); } } free((void *)sa); return remote_ia; } JNIEXPORT jint JNICALL Java_sun_nio_ch_InheritedChannel_peerPort0(JNIEnv *env, jclass cla, jint fd) { struct sockaddr *sa; socklen_t sa_len; jint remote_port = -1; NET_AllocSockaddr(&sa, (int *)&sa_len); if (getpeername(fd, sa, &sa_len) == 0) { if (matchFamily(sa)) { NET_SockaddrToInetAddress(env, sa, (int *)&remote_port); } } free((void *)sa); return remote_port; } JNIEXPORT jint JNICALL Java_sun_nio_ch_InheritedChannel_soType0(JNIEnv *env, jclass cla, jint fd) { int sotype; socklen_t arglen=sizeof(sotype); if (getsockopt(fd, SOL_SOCKET, SO_TYPE, (void *)&sotype, &arglen) == 0) { if (sotype == SOCK_STREAM) return sun_nio_ch_InheritedChannel_SOCK_STREAM; if (sotype == SOCK_DGRAM) return sun_nio_ch_InheritedChannel_SOCK_DGRAM; } return sun_nio_ch_InheritedChannel_UNKNOWN; } JNIEXPORT jint JNICALL Java_sun_nio_ch_InheritedChannel_dup(JNIEnv *env, jclass cla, jint fd) { int newfd = dup(fd); if (newfd < 0) { JNU_ThrowIOExceptionWithLastError(env, "dup failed"); } return (jint)newfd; } JNIEXPORT void JNICALL Java_sun_nio_ch_InheritedChannel_dup2(JNIEnv *env, jclass cla, jint fd, jint fd2) { if (dup2(fd, fd2) < 0) { JNU_ThrowIOExceptionWithLastError(env, "dup2 failed"); } } JNIEXPORT jint JNICALL Java_sun_nio_ch_InheritedChannel_open0(JNIEnv *env, jclass cla, jstring path, jint oflag) { const char* str; int oflag_actual; /* convert to OS specific value */ switch (oflag) { case sun_nio_ch_InheritedChannel_O_RDWR : oflag_actual = O_RDWR; break; case sun_nio_ch_InheritedChannel_O_RDONLY : oflag_actual = O_RDONLY; break; case sun_nio_ch_InheritedChannel_O_WRONLY : oflag_actual = O_WRONLY; break; default : JNU_ThrowInternalError(env, "Unrecognized file mode"); return -1; } str = JNU_GetStringPlatformChars(env, path, NULL); if (str == NULL) { return (jint)-1; } else { int fd = open(str, oflag_actual); if (fd < 0) { JNU_ThrowIOExceptionWithLastError(env, str); } JNU_ReleaseStringPlatformChars(env, path, str); return (jint)fd; } } JNIEXPORT void JNICALL Java_sun_nio_ch_InheritedChannel_close0(JNIEnv *env, jclass cla, jint fd) { if (close(fd) < 0) { JNU_ThrowIOExceptionWithLastError(env, "close failed"); } } Other Java examples (source code examples)Here is a short list of links related to this Java InheritedChannel.c source code file: |
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