Class CNetBan

server/src/netban.h:26–177

class CNetBan
{
protected:
	bool NetMatch(const NETADDR *pAddr1, const NETADDR *pAddr2) const
	{
		return NetComp(pAddr1, pAddr2) == 0;
	}

	bool NetMatch(const CNetRange *pRange, const NETADDR *pAddr, int Start, int Length) const
	{
		return pRange->m_LB.type == pAddr->type && (Start == 0 || mem_comp(&pRange->m_LB.ip[0], &pAddr->ip[0], Start) == 0) &&
			mem_comp(&pRange->m_LB.ip[Start], &pAddr->ip[Start], Length-Start) <= 0 && mem_comp(&pRange->m_UB.ip[Start], &pAddr->ip[Start], Length-Start) >= 0;
	}

	bool NetMatch(const CNetRange *pRange, const NETADDR *pAddr) const
	{
		return NetMatch(pRange, pAddr, 0,  pRange->m_LB.type==NETTYPE_IPV4 ? 4 : 16);
	}

	const char *NetToString(const NETADDR *pData, char *pBuffer, unsigned BufferSize) const
	{
		char aAddrStr[NETADDR_MAXSTRSIZE];
		net_addr_str(pData, aAddrStr, sizeof(aAddrStr), false);
		str_format(pBuffer, BufferSize, "'%s'", aAddrStr);
		return pBuffer;
	}

	const char *NetToString(const CNetRange *pData, char *pBuffer, unsigned BufferSize) const
	{
		char aAddrStr1[NETADDR_MAXSTRSIZE], aAddrStr2[NETADDR_MAXSTRSIZE];
		net_addr_str(&pData->m_LB, aAddrStr1, sizeof(aAddrStr1), false);
		net_addr_str(&pData->m_UB, aAddrStr2, sizeof(aAddrStr2), false);
		str_format(pBuffer, BufferSize, "'%s' - '%s'", aAddrStr1, aAddrStr2);
		return pBuffer;
	}

	// todo: move?
	static bool StrAllnum(const char *pStr);

	class CNetHash
	{
	public:
		int m_Hash;
		int m_HashIndex;	// matching parts for ranges, 0 for addr

		CNetHash() {}	
		CNetHash(const NETADDR *pAddr);
		CNetHash(const CNetRange *pRange);

		static int MakeHashArray(const NETADDR *pAddr, CNetHash aHash[17]);
	};

	struct CBanInfo
	{
		enum
		{
			EXPIRES_NEVER=-1,
			REASON_LENGTH=64,