| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "InetAddress.h" |
| |
| #include <decaf/lang/System.h> |
| #include <decaf/lang/Byte.h> |
| #include <decaf/net/Inet4Address.h> |
| #include <decaf/net/Inet6Address.h> |
| #include <decaf/net/UnknownHostException.h> |
| #include <decaf/lang/exceptions/RuntimeException.h> |
| |
| #include <apr_network_io.h> |
| #include <decaf/internal/AprPool.h> |
| |
| using namespace decaf; |
| using namespace decaf::net; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| using namespace decaf::internal; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| const unsigned char InetAddress::loopbackBytes[4] = { 127, 0, 0, 1 }; |
| const unsigned char InetAddress::anyBytes[4] = { 0, 0, 0, 0 }; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress::InetAddress() : hostname(), reached(false), addressBytes() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress::InetAddress(const unsigned char* ipAddress, int numBytes) : |
| hostname(), reached(false), addressBytes() { |
| |
| if (ipAddress == NULL) { |
| throw NullPointerException(__FILE__, __LINE__, "InetAddress constructor called with null address array."); |
| } |
| |
| if (numBytes < 0) { |
| throw IllegalArgumentException(__FILE__, __LINE__, "Number of bytes value is invalid: %d", numBytes); |
| } |
| |
| unsigned char* copy = new unsigned char[numBytes]; |
| System::arraycopy(ipAddress, 0, copy, 0, numBytes); |
| this->addressBytes.reset(copy, numBytes); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress::InetAddress(const std::string& hostname, const unsigned char* ipAddress, int numBytes) : |
| hostname(hostname), reached(false), addressBytes() { |
| |
| if (ipAddress == NULL) { |
| throw NullPointerException(__FILE__, __LINE__, "InetAddress constructor called with null address array."); |
| } |
| |
| if (numBytes < 0) { |
| throw IllegalArgumentException(__FILE__, __LINE__, "Number of bytes value is invalid: %d", numBytes); |
| } |
| |
| unsigned char* copy = new unsigned char[numBytes]; |
| System::arraycopy(ipAddress, 0, copy, 0, numBytes); |
| this->addressBytes.reset(copy, numBytes); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress::~InetAddress() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress* InetAddress::clone() const { |
| return new InetAddress(*this); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| ArrayPointer<unsigned char> InetAddress::getAddress() const { |
| return this->addressBytes.clone(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string InetAddress::getHostAddress() const { |
| |
| std::string address; |
| |
| for (int ix = 0; ix < this->addressBytes.length(); ix++) { |
| address.append(Byte::toString(addressBytes[ix])); |
| |
| if (ix < this->addressBytes.length() - 1) { |
| address.append("."); |
| } |
| } |
| return address; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string InetAddress::getHostName() const { |
| |
| if (!this->hostname.empty()) { |
| return this->hostname; |
| } |
| |
| return this->getHostAddress(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string InetAddress::toString() const { |
| return getHostName() + " / " + getHostAddress(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress InetAddress::getByAddress(const std::string& hostname, const unsigned char* bytes, int numBytes) { |
| |
| if (numBytes == 4) { |
| return Inet4Address(hostname, bytes, numBytes); |
| } else if (numBytes == 16) { |
| return Inet6Address(hostname, bytes, numBytes); |
| } else { |
| throw UnknownHostException(__FILE__, __LINE__, "Number of Bytes passed was invalid: %d", numBytes); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress InetAddress::getByAddress(const unsigned char* bytes, int numBytes) { |
| |
| if (numBytes == 4) { |
| return Inet4Address(bytes, numBytes); |
| } else if (numBytes == 16) { |
| return Inet6Address(bytes, numBytes); |
| } else { |
| throw UnknownHostException(__FILE__, __LINE__, "Number of Bytes passed was invalid: %d", numBytes); |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress InetAddress::getLocalHost() { |
| |
| char hostname[APRMAXHOSTLEN + 1] = { 0 }; |
| |
| try { |
| |
| AprPool pool; |
| apr_status_t result = APR_SUCCESS; |
| |
| try { |
| |
| result = apr_gethostname(hostname, APRMAXHOSTLEN + 1, pool.getAprPool()); |
| |
| if (result != APR_SUCCESS) { |
| return getLoopbackAddress(); |
| } |
| |
| } catch (...) { |
| } |
| |
| apr_sockaddr_t* address = NULL; |
| result = apr_sockaddr_info_get(&address, hostname, APR_UNSPEC, 0, APR_IPV4_ADDR_OK, pool.getAprPool()); |
| |
| if (result != APR_SUCCESS || address == NULL) { |
| throw UnknownHostException(__FILE__, __LINE__, "Could not resolve the IP Address of this host."); |
| } |
| |
| if (address->family == APR_INET) { |
| return Inet4Address(hostname, (const unsigned char*) address->ipaddr_ptr, address->ipaddr_len); |
| } else { |
| return Inet6Address(hostname, (const unsigned char*) address->ipaddr_ptr, address->ipaddr_len); |
| } |
| } |
| DECAF_CATCH_RETHROW( UnknownHostException) |
| DECAF_CATCH_EXCEPTION_CONVERT( Exception, UnknownHostException) |
| DECAF_CATCHALL_THROW( UnknownHostException) |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| unsigned int InetAddress::bytesToInt(const unsigned char* bytes, int start) { |
| |
| // First mask the byte with 255, as when a negative |
| // signed byte converts to an integer, it has bits |
| // on in the first 3 bytes, we are only concerned |
| // about the right-most 8 bits. |
| // Then shift the rightmost byte to align with its |
| // position in the integer. |
| int value = ((bytes[start + 3] & 255)) | ((bytes[start + 2] & 255) << 8) | ((bytes[start + 1] & 255) << 16) | ((bytes[start] & 255) << 24); |
| |
| return value; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress InetAddress::getAnyAddress() { |
| return Inet4Address("localhost", InetAddress::loopbackBytes, 4); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| InetAddress InetAddress::getLoopbackAddress() { |
| return Inet4Address(InetAddress::anyBytes, 4); |
| } |