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701 lines
18 KiB
701 lines
18 KiB
#ifndef _WINS_
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#define _WINS_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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wins.h
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Abstract:
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This is the main header file for WINS.
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Author:
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Pradeep Bahl Dec-1992
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Revision History:
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--*/
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/*
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Includes
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*/
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/*
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For now include all header files here since wins.h is included in every
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C file. In future, include only those headers whose stuff is being referenced
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <ntseapi.h>
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#include <rpc.h>
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#include "winsdbg.h"
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#include "winsevnt.h"
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#if 0
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#ifdef WINSDBG
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#include "winsthd.h"
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#endif
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#endif
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/*
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defines
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*/
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#pragma warning (disable: 4005)
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#define LiGtr(a, b) ((a).QuadPart > (b).QuadPart)
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#define LiGeq(a, b) ((a).QuadPart >= (b).QuadPart)
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#define LiLtr(a, b) ((a).QuadPart < (b).QuadPart)
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#define LiLeq(a, b) ((a).QuadPart <= (b).QuadPart)
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#define LiGtrZero(a) ((a).QuadPart > 0)
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#define LiGeqZero(a) ((a).QuadPart >= 0)
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#define LiLtrZero(a) ((a).QuadPart < 0)
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#define LiLeqZero(a) ((a).QuadPart <= 0)
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#define LiNeqZero(a) ((a).QuadPart != 0)
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#define LiAdd(a,b) ((a).QuadPart + (b).QuadPart)
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#define LiSub(a,b) ((a).QuadPart - (b).QuadPart)
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#define LiXDiv(a,b) ((a).Quadpart/(b).QuadPart)
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#define LiEql(a,b) ((a).QuadPart == (b).QuadPart)
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#define LiEqlZero(a) ((a).QuadPart == 0)
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#define LiNeq(a,b) ((a).QuadPart != (b).QuadPart)
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#pragma warning (default: 4005)
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#if 0
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#define HIGH_WORD(a) (DWORD)Int64ShraMod32(a,32)
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#define LOW_WORD(a) (DWORD)(a & 0xffffffff)
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#define WINS_LI_TO_INT64_M(Li, b) b = Int64ShllMod32(Li.HighPart, 32) | Li.LowPart
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#endif
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//
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// Major and minor version numbers for WINS.
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//
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// Used in start assoc. req message.
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//
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#define WINS_MAJOR_VERS 2
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#if PRSCONN
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#define WINS_MINOR_VERS_NT5 5
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#define WINS_MINOR_VERS WINS_MINOR_VERS_NT5 //for NT 5
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#else
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#define WINS_MINOR_VERS 1
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#endif
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#if SUPPORT612WINS > 0
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#define WINS_BETA2_MAJOR_VERS_NO 2
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#define WINS_BETA1_MAJOR_VERS_NO 1
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#endif
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#define WINS_SERVER TEXT("Wins")
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#define WINS_SERVER_FULL_NAME TEXT("WINDOWS INTERNET NAME SERVICE")
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#define WINS_NAMED_PIPE TEXT("\\pipe\\WinsPipe")
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#define WINS_NAMED_PIPE_ASCII "\\pipe\\WinsPipe"
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/*
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The following macros are used to flag places in the code that need to be
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examined for enhancements (FUTURES), or verification of something to make
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the code better (CHECK) or for porting to another transport (NON_PORT)
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or performance improvement (PERF) or for alignment considerations (ALIGN)
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or for just FYI (NOTE)
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These macros provide a convenient mechanism to quickly determine all that
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needs to be enhanced, verified, or ported.
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*/
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#ifdef FUTURES
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#define FUTURES(x) FUTURES: ## x
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#else
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#define FUTURES(x)
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#endif
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#ifdef CHECK
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#define CHECK(x) CHECK: ## x
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#else
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#define CHECK(x)
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#endif
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#ifdef NONPORT
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#define NONPORT(x) NON_PORT: ## x
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#else
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#define NONPORT(x)
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#endif
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#ifdef PERF
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#define PERF(x) PERF: ## x
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#else
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#define PERF(x)
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#endif
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#ifdef NOTE
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#define NOTE(x) NOTE: ## x
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#else
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#define NOTE(x)
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#endif
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//
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// NOTE NOTE NOTE:
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// The sequence of entering critical sections when more than one is
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// entered is given below
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//
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//
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// WinsCnfCnfCrtSec, NmsNmhNamRegCrtSec
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//
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// Entered in winsintf.c,winscnf.c,nmsscv.c, rplpull.c
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//
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//
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// Various critical sections and how they are entered
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//
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// ******************************
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// NmsNmhNamRegCrtSec
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//*******************************
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//
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// Entered by the main thread on a reconfig if vers. counter value is
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// specified in the registry. Enetered by nbt threads, nmschl thread
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//
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//
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// ******************************
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// NmsDbOwnAddTblCrtSec
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// ******************************
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//
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// Entered by Pull, Push, Rpc threads.
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//
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/*
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ALIGN - macro to flag places where alignment is very important
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*/
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#ifdef ALIGN
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#define ALIGN(x) ALIGNMENT: ## x
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#else
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#define ALIGN(x)
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#endif
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/*
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EOS is not defined in windef.h.
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*/
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#define EOS (TCHAR)0
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/*
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The opcodes in the first long word of a message sent on an association.
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When a message comes in on a TCP connection, the receiving COMSYS,
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checks the opcode in the first long word of the message ( lcation:
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bit 11 to bit 15) to determine if it is a message from an nbt node or
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a WINS server. NBT message formats use bit 11- bit 15 for the opcode and
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Req/Response bit. Since out of a posssible 32 opcode combintations, only
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5 are used by NBT, WINS uses one so that the COMSYS receiving the first
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message on a connection can determine whether the connection was
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established by an NBT node or a WINS server.
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if we do not go with the above scheme, we would have had to compare the
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address of the node making the connection with all the addresses of the
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WINS partners that we were configured with to determine whether the
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connection came from a WINS partner or an NBT node. This search is not
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only expensive but also constraints a WINS to know of all its partners
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apriori.
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All messages sent by a WINS have WINS_IS_NOT_NBT opcode in the first byte.
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This is to enable the receiving COMSYS to look up the assoc. ctx block
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quickly without a search. This is because if the message is from a WINS
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and is not the first one, then it has the ptr to the local assoc. ctx (this
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was sent to that WINS in the start assoc. response message).
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*/
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/*
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The value put in the first long word by rplmsgf functions
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*/
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#define WINS_RPL_NOT_FIRST_MSG (0xF800)
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//
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// Defines to indicate to WinsMscTermThd whether a database session is
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// existent or not
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//
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#define WINS_DB_SESSION_EXISTS 0
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#define WINS_NO_DB_SESSION_EXISTS 1
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//
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// Max. size of a file name
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//
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#define WINS_MAX_FILENAME_SZ 255
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//
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// Max. size of a line
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//
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// Used in winsprs.c
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//
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#define WINS_MAX_LINE_SZ 80
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//
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// Swap bytes (used in NmsMsgfProcNbtReq) and in nmschl.c)
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//
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#define WINS_SWAP_BYTES_M(pFirstByte, pSecondByte) \
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{ \
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BYTE SecondByte = *(pSecondByte); \
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*(pSecondByte) = *(pFirstByte); \
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*(pFirstByte) = (SecondByte); \
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}
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//
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// Max size of a non-scoped null name (along with NULL character)
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//
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#define WINS_MAX_NS_NETBIOS_NAME_LEN 17
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//
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// Max. size of a name in the name - address mapping table.
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//
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#define WINS_MAX_NAME_SZ 255
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FUTURES("Make this a value in the enumerator for Opcodes")
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/*
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The actual value put in bit 11-bit 14. Use 0xE (0xF is used for multihomed
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registration)
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*/
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#define WINS_IS_NOT_NBT (0xF)
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/*
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defines for the different status values returned by the various
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functions withing WINS
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| SeverityNames=(Success=0x0:STATUS_SEVERITY_SUCCESS
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| Informational=0x1:STATUS_SEVERITY_INFORMATIONAL
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| Warning=0x2:STATUS_SEVERITY_WARNING
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| Error=0x3:STATUS_SEVERITY_ERROR
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| )
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| FacilityNames=(System=0x0
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| RpcRuntime=0x2:FACILITY_RPC_RUNTIME
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| RpcStubs=0x3:FACILITY_RPC_STUBS
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| Io=0x4:FACILITY_IO_ERROR_CODE
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| )
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| Status codes are laid out as:
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| //
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| // Values are 32 bit values layed out as follows:
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| //
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| // 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
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| // 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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| // +---+-+-+-----------------------+-------------------------------+
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| // |Sev|C|R| Facility | Code |
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| // +---+-+-+-----------------------+-------------------------------+
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| // where
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| //
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| // Sev - is the severity code
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| // 00 - Success
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| // 01 - Informational
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| // 10 - Warning
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| // 11 - Error
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| // C - is the Customer code flag
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| //
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| // R - is a reserved bit
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| //
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| // Facility - is the facility code
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| //
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| // Code - is the facility's status code
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| //
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| //
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| // Define the facility codes
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| //
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| MS will never set the C bit. This is reserved for
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| applications. If exceptions stay within the app, setting
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| the C bit means you will never get a collision.
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*/
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#define WINS_FIRST_NON_ERR_STATUS ((DWORD )0x00000000L)
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#define WINS_SUCCESS (WINS_FIRST_NON_ERR_STATUS + 0x0)
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#define WINS_NO_REQ (WINS_FIRST_NON_ERR_STATUS + 0x1)
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#define WINS_NO_SP_TIME (WINS_FIRST_NON_ERR_STATUS + 0x2)
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#define WINS_LAST_NON_ERR_STATUS (WINS_NO_SP_TIME)
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#define WINS_FIRST_ERR_STATUS ((DWORD )0xE0000000L)
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#define WINS_FAILURE (WINS_FIRST_ERR_STATUS + 0x1)
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#define WINS_FATAL_ERR (WINS_FIRST_ERR_STATUS + 0x2)
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#define WINS_BAD_STATE_ASSOC (WINS_FIRST_ERR_STATUS + 0x3)
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#define WINS_OUT_OF_MEM (WINS_FIRST_ERR_STATUS + 0x4)
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#define WINS_OUT_OF_HEAP (WINS_FIRST_ERR_STATUS + 0x5)
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#define WINS_BAD_PTR (WINS_FIRST_ERR_STATUS + 0x6)
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#define WINS_COULD_NOT_FREE_MEM (WINS_FIRST_ERR_STATUS + 0x7)
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#define WINS_COMM_FAIL (WINS_FIRST_ERR_STATUS + 0x8)
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#define WINS_ABNORMAL_TERM (WINS_FIRST_ERR_STATUS + 0x9)
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#define WINS_PKT_FORMAT_ERR (WINS_FIRST_ERR_STATUS + 0xA)
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#define WINS_HEAP_FREE_ERR (WINS_FIRST_ERR_STATUS + 0xB)
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#define WINS_HEAP_CREATE_ERR (WINS_FIRST_ERR_STATUS + 0xC)
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#define WINS_SIGNAL_TMM_ERR (WINS_FIRST_ERR_STATUS + 0xD)
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#define WINS_SIGNAL_CLIENT_ERR (WINS_FIRST_ERR_STATUS + 0xE)
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#define WINS_DB_INCONSISTENT (WINS_FIRST_ERR_STATUS + 0xF)
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#define WINS_OUT_OF_RSRCS (WINS_FIRST_ERR_STATUS + 0x10)
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#define WINS_INVALID_HDL (WINS_FIRST_ERR_STATUS + 0x11)
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#define WINS_CANT_OPEN_KEY (WINS_FIRST_ERR_STATUS + 0x12)
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#define WINS_CANT_CLOSE_KEY (WINS_FIRST_ERR_STATUS + 0x13)
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#define WINS_CANT_QUERY_KEY (WINS_FIRST_ERR_STATUS + 0x14)
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#define WINS_RPL_STATE_ERR (WINS_FIRST_ERR_STATUS + 0x15)
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#define WINS_RECORD_NOT_OWNED (WINS_FIRST_ERR_STATUS + 0x16)
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#define WINS_RECV_TIMED_OUT (WINS_FIRST_ERR_STATUS + 0x17)
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#define WINS_LOCK_ASSOC_ERR (WINS_FIRST_ERR_STATUS + 0x18)
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#define WINS_LOCK_DLG_ERR (WINS_FIRST_ERR_STATUS + 0x19)
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#define WINS_OWNER_LIMIT_REACHED (WINS_FIRST_ERR_STATUS + 0x20)
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#define WINS_NBT_ERR (WINS_FIRST_ERR_STATUS + 0x21)
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#define WINS_QUEUE_FULL (WINS_FIRST_ERR_STATUS + 0x22)
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#define WINS_BAD_RECORD (WINS_FIRST_ERR_STATUS + 0x23)
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#define WINS_LAST_ERR_STATUS (WINS_QUEUE_FULL)
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/*
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The various exceptions used within WINS
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*/
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#define WINS_EXC_INIT WINS_SUCCESS
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#define WINS_EXC_FAILURE WINS_FAILURE
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#define WINS_EXC_FATAL_ERR WINS_FATAL_ERR
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#define WINS_EXC_BAD_STATE_ASSOC WINS_BAD_STATE_ASSOC
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#define WINS_EXC_OUT_OF_MEM WINS_OUT_OF_MEM
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/*
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Could not allocate heap memory
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*/
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#define WINS_EXC_OUT_OF_HEAP WINS_OUT_OF_HEAP
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/*
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a bad pointer was passed Possibley to LocalFree
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Check WInsMscDealloc
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*/
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#define WINS_EXC_BAD_PTR WINS_BAD_PTR
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/*
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Memory could not be freed through LocalFree
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Check WInsMscDealloc
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*/
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#define WINS_EXC_COULD_NOT_FREE_MEM WINS_COULD_NOT_FREE_MEM
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#define WINS_EXC_COMM_FAIL WINS_COMM_FAIL
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/*
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The wait was terminated abnormally
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*/
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#define WINS_EXC_ABNORMAL_TERM WINS_ABNORMAL_TERM
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/*
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The name packet received is not formatted properly
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*/
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#define WINS_EXC_PKT_FORMAT_ERR WINS_PKT_FORMAT_ERR
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/*
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Heap memory could not be freed
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*/
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#define WINS_EXC_HEAP_FREE_ERR WINS_HEAP_FREE_ERR
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/*
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Heap could not be created
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*/
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#define WINS_EXC_HEAP_CREATE_ERR WINS_HEAP_CREATE_ERR
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/*
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Could not signal Tmm thread
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*/
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#define WINS_EXC_SIGNAL_TMM_ERR WINS_SIGNAL_TMM_ERR
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/*
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TMM Could not signal Client thread
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*/
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#define WINS_EXC_SIGNAL_CLIENT_ERR WINS_SIGNAL_CLIENT_ERR
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/*
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Database is inconsistent.
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*/
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#define WINS_EXC_DB_INCONSISTENT WINS_DB_INCONSISTENT
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/*
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Out of resources (for example: a thread could not be created)
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*/
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#define WINS_EXC_OUT_OF_RSRCS WINS_OUT_OF_RSRCS
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/*
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An invalid handle is being used
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*/
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#define WINS_EXC_INVALID_HDL WINS_INVALID_HDL
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/*
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The registry key is there but could not be opened
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*/
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#define WINS_EXC_CANT_OPEN_KEY WINS_CANT_OPEN_KEY
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/*
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The registry key could not be closed
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*/
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#define WINS_EXC_CANT_CLOSE_KEY WINS_CANT_CLOSE_KEY
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/*
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The registry key was opened but could not be queried
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*/
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#define WINS_EXC_CANT_QUERY_KEY WINS_CANT_QUERY_KEY
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/*
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WINS received a replica that does not have the correct state. For example,
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it may have received the replica of a special group (Internet) group that
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has all members timed out but the state is not TOMBSTONE
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Another example is when a replica with state RELEASED is received
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*/
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#define WINS_EXC_RPL_STATE_ERR WINS_RPL_STATE_ERR
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/*
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WINS received an update version number notification (from another WINS)
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for a record that it does not own
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There can be two reasons why this happened
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1) There is a bug in WINS (highly unlikely)
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2) The system administrator just deleted the record that was replicated
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to the remote WINS resulting in the clash and consequent update
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notification.
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Check the event logger to confirm/reject the second reason
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*/
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#define WINS_EXC_RECORD_NOT_OWNED WINS_RECORD_NOT_OWNED
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//
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// Could not lock an assoc block
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//
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#define WINS_EXC_LOCK_ASSOC_ERR WINS_LOCK_ASSOC_ERR
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//
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// Could not lock a dialogue block
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//
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#define WINS_EXC_LOCK_DLG_ERR WINS_LOCK_DLG_ERR
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//
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// NmsDbOwnAddTbl limit reached. All owners of the array are taken
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// by ACTIVE WINS owners
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//
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#define WINS_EXC_OWNER_LIMIT_REACHED WINS_OWNER_LIMIT_REACHED
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//
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// Some fatal error concerning NBT was encountered
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//
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#define WINS_EXC_NBT_ERR WINS_NBT_ERR
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// bad database record encountered.
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#define WINS_EXC_BAD_RECORD WINS_BAD_RECORD
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/*
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Macros
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*/
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//
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// Control codes that can be used by the service controller (128-255)
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//
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#define WINS_MIN_SERVICE_CONTROL_CODE 128
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#define WINS_ABRUPT_TERM (WINS_MIN_SERVICE_CONTROL_CODE + 0)
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#define WINS_RAISE_EXC_M(x) RaiseException(x, 0, 0, NULL)
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#define WINS_HDL_EXC_M(MemPtrs) \
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{ \
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WinsMscFreeMem(MemPtrs); \
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}
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#define WINS_HDL_EXC_N_EXIT_M(MemPtrs) \
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{ \
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WinsMscFreeMem(MemPtrs); \
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ExitProcess(0); \
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}
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#define WINS_RERAISE_EXC_M() \
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{ \
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DWORD ExcCode; \
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ExcCode = GetExceptionCode(); \
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WINS_RAISE_EXC_M(ExcCode); \
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}
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#define WINS_HDL_EXC_N_RERAISE_M(MemPtrs) \
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{ \
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DWORD ExcCode; \
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WinsMscFreeMem(MemPtrs); \
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ExcCode = GetExceptionCode(); \
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WINS_RAISE_EXC_M(ExcCode); \
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}
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#if 0
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#define WINS_RPL_OPCODE_M(pTmp) \
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{ \
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*pTmp = WINS_RPL_NOT_FIRST_MSG; \
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}
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#endif
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#define WINS_EXIT_IF_ERR_M(func, ExpectedStatus) \
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{ \
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STATUS Status_mv ; \
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Status_mv = (func); \
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if (Status_mv != ExpectedStatus) \
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{ \
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DBGPRINT0(ERR, "Major Error"); \
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ExitProcess(1); \
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} \
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}
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#define WINS_RET_IF_ERR_M(func, ExpectedStatus) \
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{ \
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STATUS Status_mv ; \
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Status_mv = (func); \
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if (Status_mv != ExpectedStatus) \
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{ \
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DBGPRINT0(ERR, "Error returned by called func."); \
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return(WINS_FAILURE); \
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} \
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}
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//
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// Vers. No. operations
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//
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#if 0
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#define WINS_ASSIGN_INT_TO_LI_M(Li, no) { \
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(Li).LowPart = (no); \
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(Li).HighPart = 0; \
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}
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#endif
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#define WINS_ASSIGN_INT_TO_LI_M(Li, no) (Li).QuadPart = (no)
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#define WINS_ASSIGN_INT_TO_VERS_NO_M(Li, no) WINS_ASSIGN_INT_TO_LI_M(Li, no)
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#define WINS_PUT_VERS_NO_IN_STREAM_M(pVersNo, pStr) \
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{ \
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LPLONG _pTmpL = (LPLONG)(pStr); \
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COMM_HOST_TO_NET_L_M((pVersNo)->HighPart, *_pTmpL); \
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_pTmpL++; \
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COMM_HOST_TO_NET_L_M((pVersNo)->LowPart, *_pTmpL); \
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}
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#define WINS_GET_VERS_NO_FR_STREAM_M(pStr, pVersNo) \
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{ \
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LPLONG _pTmpL = (LPLONG)(pStr); \
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COMM_NET_TO_HOST_L_M(*_pTmpL, (pVersNo)->HighPart); \
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_pTmpL++; \
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COMM_NET_TO_HOST_L_M(*_pTmpL, (pVersNo)->LowPart ); \
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}
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#define WINS_VERS_NO_SIZE sizeof(LARGE_INTEGER)
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/*
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externs
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*/
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extern DWORD WinsTlsIndex; /*TLS index for Nbt threads to
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*store database info*/
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/*
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Typedefs
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*/
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typedef DWORD STATUS; // status returned by all NBNS funcs
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/*
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* VERS_NO_T -- datatype of variable storing version number. The sizeof
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* of this datatype is used when adding version number column in the
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* name - address mapping table and when setting a value in this column.
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* So, if you change the datatype, make sure you make appropriate changes
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* in nmsdb.c (CreateTbl, InsertRow, etc)
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*/
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typedef LARGE_INTEGER VERS_NO_T, *PVERS_NO_T; // version no.
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typedef LPBYTE MSG_T; //ptr to a message
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typedef LPBYTE *PMSG_T; //ptr to a message
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typedef DWORD MSG_LEN_T; //length of message
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typedef LPDWORD PMSG_LEN_T; //length of message
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typedef MSG_LEN_T MSG_LEN;
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typedef PMSG_LEN_T PMSG_LEN;
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typedef DWORD WINS_UID_T, *PWINS_UID_T;
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/*
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WINS_CLIENT_E -- specifies the different components and their parts
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inside the WINS server.
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*/
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typedef enum _WINS_CLIENT_E {
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WINS_E_REPLICATOR = 0, /*replicator */
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WINS_E_RPLPULL, /*replicator - PULL*/
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WINS_E_RPLPUSH, /*replicator - PUSH*/
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WINS_E_NMS, /* Name Space Manager */
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WINS_E_NMSNMH, /* Name Space Manager - Name Handler */
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WINS_E_NMSCHL, /* Name Space Manager - Challenge Manager*/
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WINS_E_NMSSCV, /* Name Space Manager - Savenger */
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WINS_E_COMSYS, /* Communication Subsystem Manager*/
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WINS_E_WINSCNF, /* WINS - Configuration */
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WINS_E_WINSTMM, /* WINS - Timer Manager*/
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WINS_E_WINSRPC /* WINS - RPC thread*/
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} WINS_CLIENT_E, *PWINS_CLIENT_E;
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#define WINS_NO_OF_CLIENTS (WINS_E_WINSRPC + 1)
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/*
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WINS_MEM_T -- This structure is used in any function that allocates memory
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or has memory allocated for it by a called function and passed
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back via an OUT argument
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The ptrs to the memory blocks are linked together. The memory
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is freed in the exception handler.
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This mechanism of keeping track of memory in a structure and
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getting rid of it in the exception handler will alleviate memory
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leak problems
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*/
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typedef struct _WINS_MEM_T {
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LPVOID pMem; //non-heap allocated memory
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LPVOID pMemHeap; //memory allocated from a heap
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} WINS_MEM_T, *PWINS_MEM_T;
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#ifdef __cplusplus
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}
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#endif
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#endif
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