CWE-ou-minkata/Sources/Plasma/NucleusLib/pnAddrInfo/pnAddrInfo.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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*==LICENSE==*/
#ifndef SERVER


#include "hsTypes.h"
#include "pnAddrInfo.h"
#include <string.h>

#if HS_BUILD_FOR_UNIX
#   include <unistd.h>
#   include <arpa/inet.h>
#   include <netinet/in.h>
#   include <net/if.h>
#   include <sys/ioctl.h>
#endif

const pnAddrInfo* pnAddrInfo::GetInterface()
{
    static pnAddrInfo addrinfo;
    return &addrinfo;
}

struct addrinfo* pnAddrInfo::GetAddrByNameSimple(const char* name, const int family)
{
    struct addrinfo* info;
    struct addrinfo hints;
    memset(&hints,0,sizeof(hints));
    hints.ai_family = family;
    hints.ai_flags = AI_CANONNAME;
    if (Get(name,NULL,&hints,&info) != 0)
        info = NULL;
    return info;
};

int pnAddrInfo::Get(const char* node, const char* service, const struct addrinfo* hints, struct addrinfo** res)
{
    return getaddrinfo(node,service,hints,res);
}

void pnAddrInfo::Free(struct addrinfo* res)
{
    freeaddrinfo(res);
}

const char* pnAddrInfo::GetErrorString(int errcode)
{
    return gai_strerror(errcode);
}

//////////////////////////////////
//// UNIX
//////////////////////////////////

#if HS_BUILD_FOR_UNIX
pnAddrInfo::pnAddrInfo()
{
}

pnAddrInfo::~pnAddrInfo()
{
}

void pnAddrInfo::GetLocalAddrs(List& addrslist, bool incLoopBack)
{
    struct ifconf info;
    struct ifreq infos[128];
    
    info.ifc_len = sizeof(infos);
    info.ifc_req = infos;
    
    int s = socket(AF_INET, SOCK_DGRAM, 0); 
    
    if (ioctl(s,SIOCGIFCONF,&info) == 0)
    {
        int i;
        int entries = info.ifc_len / sizeof(struct ifreq);
        
        for (i = 0; i < entries; i++)
        {
            struct in_addr addr = ((struct sockaddr_in *)&(infos[i].ifr_addr))->sin_addr;
            
            if (incLoopBack || (addr.s_addr != htonl(INADDR_LOOPBACK)))
            {
                addrslist.push_back(inet_ntoa(addr));
            }
        }
    }
    
    close(s);
}

#endif

////////////////////////////////////
//// Windows
////////////////////////////////////

#if HS_BUILD_FOR_WIN32
pnAddrInfo::pnAddrInfo()
{
    WSADATA data;
    WSAStartup(MAKEWORD( 2, 2 ), &data);
}

pnAddrInfo::~pnAddrInfo()
{
        WSACleanup();
}

void pnAddrInfo::GetLocalAddrs(List& addrslist, bool incLoopBack)
{
    INTERFACE_INFO infos[128];  // get at most 128 interfaces
    const unsigned int bufSize = sizeof(infos);
    DWORD retSize;

    SOCKET s = socket(AF_INET, SOCK_DGRAM, 0); 

    if (WSAIoctl(s, SIO_GET_INTERFACE_LIST, NULL, 0,
                (void*)infos, bufSize, &retSize, NULL, NULL) == 0)
    {
        unsigned int entries = retSize/sizeof(INTERFACE_INFO);
        int i;
        for (i = 0; i < entries; i++)
        {
            if (infos[i].iiFlags & IFF_UP)
            {
                struct in_addr addr = infos[i].iiAddress.AddressIn.sin_addr;
                if (incLoopBack || (addr.s_addr != htonl(INADDR_LOOPBACK)))
                    addrslist.push_back(inet_ntoa(addr));
            }
        }
    }

    closesocket(s);
}
#endif


#endif // SERVER