122 lines
2.9 KiB
C++
122 lines
2.9 KiB
C++
/* Copyright (C) 2003, 2006 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <platform.h>
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#undef STRICT
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#include <java/net/VMInetAddress.h>
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#include <java/net/UnknownHostException.h>
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jstring
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java::net::VMInetAddress::getLocalHostname ()
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{
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char buffer[400];
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if (gethostname (buffer, sizeof(buffer)))
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return NULL;
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// It is admittedly non-optimal to convert the hostname to Unicode
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// only to convert it back in getByName, but simplicity wins.
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return JvNewStringUTF (buffer);
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}
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jbyteArray
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java::net::VMInetAddress::lookupInaddrAny ()
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{
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unsigned long laddr = INADDR_ANY;
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char *bytes = (char *) &laddr;
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int blen = sizeof (laddr);
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jbyteArray result = JvNewByteArray (blen);
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memcpy (elements (result), bytes, blen);
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return result;
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}
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jstring
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java::net::VMInetAddress::getHostByAddr (jbyteArray addr)
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{
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struct hostent *hptr = NULL;
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char *bytes = (char*) elements (addr);
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int len = addr->length;
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int type;
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char *val;
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if (len == 4)
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{
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val = bytes;
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type = AF_INET;
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}
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#ifdef HAVE_INET6
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else if (len == 16)
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{
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val = (char *) &bytes;
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type = AF_INET6;
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}
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#endif /* HAVE_INET6 */
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else
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JvFail ("unrecognized size");
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// FIXME: this is insufficient if some other piece of code calls
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// this gethostbyaddr.
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JvSynchronize sync (&java::net::VMInetAddress::class$);
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hptr = gethostbyaddr (val, len, type);
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if (hptr == NULL)
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throw new java::net::UnknownHostException ();
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return JvNewStringUTF (hptr->h_name);
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}
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JArray<jbyteArray> *
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java::net::VMInetAddress::getHostByName (jstring host)
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{
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struct hostent *hptr = NULL;
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JV_TEMP_UTF_STRING (hostname, host);
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// FIXME: this is insufficient if some other piece of code calls
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// this gethostbyname.
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JvSynchronize sync (&java::net::VMInetAddress::class$);
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hptr = gethostbyname (hostname);
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if (hptr == NULL)
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throw new java::net::UnknownHostException (host);
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int count = 0;
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char ** ptr = hptr->h_addr_list;
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while (*ptr++) count++;
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JArray<jbyteArray> *result =
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(JArray<jbyteArray> *) _Jv_NewObjectArray (
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count, _Jv_GetArrayClass(JvPrimClass(byte), NULL), NULL);
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jbyteArray* addrs = elements (result);
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for (int i = 0; i < count; i++)
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{
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addrs[i] = JvNewByteArray (hptr->h_length);
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memcpy (elements (addrs[i]), hptr->h_addr_list[i], hptr->h_length);
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}
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return result;
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}
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jbyteArray
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java::net::VMInetAddress::aton (jstring host)
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{
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JV_TEMP_UTF_STRING (hostname, host);
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char* bytes = NULL;
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int blen = 0;
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unsigned long laddr = inet_addr (hostname);
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if (laddr != INADDR_NONE)
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{
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bytes = (char *) &laddr;
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blen = 4;
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}
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if (blen == 0)
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return NULL;
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jbyteArray result = JvNewByteArray (blen);
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memcpy (elements (result), bytes, blen);
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return result;
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}
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