/*

 * 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");

    }

}