100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name :
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dnsrec.h
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Abstract:
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This file contains type definitions for async DNS
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Author:
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Rohan Phillips (Rohanp) June-19-1998
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Revision History:
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--*/
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# ifndef _ADNS_STRUCT_HXX_
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# define _ADNS_STRUCT_HXX_
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#include <rwnew.h>
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#include <dnsapi.h>
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#define TCP_REG_LIST_SIGNATURE 'TgeR'
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#define DNS_FLAGS_NONE 0x0
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#define DNS_FLAGS_TCP_ONLY 0x1
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#define DNS_FLAGS_UDP_ONLY 0x2
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#define SMTP_MAX_DNS_ENTRIES 100
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typedef void (WINAPI * USERDELETEFUNC) (PVOID);
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//-----------------------------------------------------------------------------
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//
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// Description:
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// Encapsulates a list of IP addresses (for DNS servers) and maintains
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// state information on them... whether the servers are up or down, and
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// provides retry logic for down servers.
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//
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//-----------------------------------------------------------------------------
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class CTcpRegIpList
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{
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private:
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DWORD m_dwSig;
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int m_cUpServers;
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PIP_ARRAY m_IpListPtr;
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DWORD *m_prgdwFailureTick;
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BOOL *m_prgfServerUp;
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CShareLockNH m_sl;
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public:
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static USERDELETEFUNC m_DeleteFunc;
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CTcpRegIpList();
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~CTcpRegIpList();
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void Update(PIP_ARRAY IpPtr);
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DWORD GetIp(DWORD *dwIp);
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void MarkDown(DWORD dwIp);
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void ResetServersIfNeeded();
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DWORD GetCount()
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{
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DWORD dwCount;
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m_sl.ShareLock();
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dwCount = m_IpListPtr ? m_IpListPtr->cAddrCount : 0;
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m_sl.ShareUnlock();
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return dwCount;
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}
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};
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typedef struct _MXIPLISTENTRY_
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{
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DWORD IpAddress;
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LIST_ENTRY ListEntry;
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}MXIPLIST_ENTRY, *PMXIPLIST_ENTRY;
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typedef struct _MX_NAMES_
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{
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char DnsName[MAX_INTERNET_NAME];
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DWORD NumEntries;
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LIST_ENTRY IpListHead;
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}MX_NAMES, *PMX_NAMES;
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typedef struct _SMTPDNS_REC_
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{
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DWORD NumRecords; //number of record in DnsArray
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DWORD StartRecord; //the starting index
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PVOID pMailMsgObj; //pointer to a mailmsg obj
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PVOID pAdvQContext;
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PVOID pRcptIdxList;
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DWORD dwNumRcpts;
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MX_NAMES *DnsArray[SMTP_MAX_DNS_ENTRIES];
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} SMTPDNS_RECS, *PSMTPDNS_RECS;
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#endif
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