[voogru]

I figured I would share this little snippet, this will convert a STEAMID to the a players friendID which is used for steam community.

What could potentially be done with this, is to fetch data on a player, see what groups he is in, and basically gives you the flexibility to ban whole groups from your server without knowing all of their steamids.

At least, thats what I intend to do with it. You can also of course do the reverse, converting friend ID's to steamids.

PHP Code:

__int64 GetFriendID( const char *pszAuthID )
{
    if(!pszAuthID)
        return 0;

    int iServer = 0;
    int iAuthID = 0;

    char szAuthID[64];
    strcpy_s(szAuthID, 63, pszAuthID);

    char *szTmp = strtok(szAuthID, ":");
    while(szTmp = strtok(NULL, ":"))
    {
        char *szTmp2 = strtok(NULL, ":");
        if(szTmp2)
        {
            iServer = atoi(szTmp);
            iAuthID = atoi(szTmp2);
        }
    }

    if(iAuthID == 0)
        return 0;

    __int64 i64friendID = (__int64)iAuthID * 2;

    //Friend ID's with even numbers are the 0 auth server.
    //Friend ID's with odd numbers are the 1 auth server.
    i64friendID += 76561197960265728 + iServer; 

    return i64friendID;
} 


Have fun.

Edit: Using this a Pure MySQL was created