/indra/llmessage/llhost.cpp
C++ | 178 lines | 121 code | 24 blank | 33 comment | 10 complexity | 51844895b2ecbdb319091896e99121fb MD5 | raw file
Possible License(s): LGPL-2.1
- /**
- * @file llhost.cpp
- * @brief Encapsulates an IP address and a port.
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- #include "llhost.h"
- #include "llerror.h"
- #if LL_WINDOWS
- #define WIN32_LEAN_AND_MEAN
- #include <winsock2.h>
- #else
- #include <netdb.h>
- #include <netinet/in.h> // ntonl()
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <arpa/inet.h>
- #endif
- LLHost LLHost::invalid(INVALID_PORT,INVALID_HOST_IP_ADDRESS);
- LLHost::LLHost(const std::string& ip_and_port)
- {
- std::string::size_type colon_index = ip_and_port.find(":");
- if (colon_index == std::string::npos)
- {
- mIP = ip_string_to_u32(ip_and_port.c_str());
- mPort = 0;
- }
- else
- {
- std::string ip_str(ip_and_port, 0, colon_index);
- std::string port_str(ip_and_port, colon_index+1);
- mIP = ip_string_to_u32(ip_str.c_str());
- mPort = atol(port_str.c_str());
- }
- }
- std::string LLHost::getString() const
- {
- return llformat("%s:%u", u32_to_ip_string(mIP), mPort);
- }
- std::string LLHost::getIPandPort() const
- {
- return getString();
- }
- std::string LLHost::getIPString() const
- {
- return std::string( u32_to_ip_string( mIP ) );
- }
- std::string LLHost::getHostName() const
- {
- hostent* he;
- if (INVALID_HOST_IP_ADDRESS == mIP)
- {
- llwarns << "LLHost::getHostName() : Invalid IP address" << llendl;
- return std::string();
- }
- he = gethostbyaddr((char *)&mIP, sizeof(mIP), AF_INET);
- if (!he)
- {
- #if LL_WINDOWS
- llwarns << "LLHost::getHostName() : Couldn't find host name for address " << mIP << ", Error: "
- << WSAGetLastError() << llendl;
- #else
- llwarns << "LLHost::getHostName() : Couldn't find host name for address " << mIP << ", Error: "
- << h_errno << llendl;
- #endif
- return std::string();
- }
- else
- {
- return ll_safe_string(he->h_name);
- }
- }
- BOOL LLHost::setHostByName(const std::string& hostname)
- {
- hostent *he;
- std::string local_name(hostname);
- #if LL_WINDOWS
- // We may need an equivalent for Linux, but not sure - djs
- LLStringUtil::toUpper(local_name);
- #endif
- he = gethostbyname(local_name.c_str());
- if(!he)
- {
- U32 ip_address = ip_string_to_u32(hostname.c_str());
- he = gethostbyaddr((char *)&ip_address, sizeof(ip_address), AF_INET);
- }
- if (he)
- {
- mIP = *(U32 *)he->h_addr_list[0];
- return TRUE;
- }
- else
- {
- setAddress(local_name);
- // In windows, h_errno is a macro for WSAGetLastError(), so store value here
- S32 error_number = h_errno;
- switch(error_number)
- {
- case TRY_AGAIN: // XXX how to handle this case?
- llwarns << "LLHost::setAddress(): try again" << llendl;
- break;
- case HOST_NOT_FOUND:
- case NO_ADDRESS: // NO_DATA
- llwarns << "LLHost::setAddress(): host not found" << llendl;
- break;
- case NO_RECOVERY:
- llwarns << "LLHost::setAddress(): unrecoverable error" << llendl;
- break;
- default:
- llwarns << "LLHost::setAddress(): unknown error - " << error_number << llendl;
- break;
- }
- return FALSE;
- }
- }
- LLHost& LLHost::operator=(const LLHost &rhs)
- {
- if (this != &rhs)
- {
- set(rhs.getAddress(), rhs.getPort());
- }
- return *this;
- }
- std::ostream& operator<< (std::ostream& os, const LLHost &hh)
- {
- os << u32_to_ip_string(hh.mIP) << ":" << hh.mPort ;
- return os;
- }
- //std::istream& operator>> (std::istream& is, LLHost &rh)
- //{
- // is >> rh.mIP;
- // is >> rh.mPort;
- // return is;
- //}