715 lines
27 KiB
C++
715 lines
27 KiB
C++
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/******************************************************************************
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Copyright (C) Microsoft Corporation
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Module Name:
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Query.CPP
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Abstract:
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This module deals with Query functionality of OpenFiles.exe
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NT command line utility.
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Author:
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Akhil Gokhale (akhil.gokhale@wipro.com) 1-Nov-2000
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Revision History:
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Akhil Gokhale (akhil.gokhale@wipro.com) 1-Nov-2000 : Created It.
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*****************************************************************************/
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#include "pch.h"
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#include "query.h"
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/*****************************************************************************
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Routine Description:
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This function Queries for all open files in for the server and display them.
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Arguments:
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[in] pszServer : Will have the server name.
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[in] bShowNoHeader : Will have the value whether to show header or not.
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[in] pszFormat : Will have the format required to show the result.
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[in] bVerbose : Will have the value whether to show verbose
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result.
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Return Value:
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TRUE if query successful
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else FALSE
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******************************************************************************/
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BOOL
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DoQuery(PTCHAR pszServer,
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BOOL bShowNoHeader,
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PTCHAR pszFormat,
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BOOL bVerbose)
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{
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CHString szCHString;
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DWORD dwEntriesRead = 0;// Receives the count of elements actually
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// enumerated by "NetFileEnum" function
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DWORD dwTotalEntries = 0;//Receives the total number of entries that could
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//have been enumerated from the current
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//resume position by "NetFileEnum" function
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DWORD dwResumeHandle = 0;//Contains a resume handle which is used to
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//continue an existing file search.
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//The handle should be zero on the first call and
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//left unchanged for subsequent calls.
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//If resume_handle is NULL,
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//then no resume handle is stored. This variable
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// used in calling "NetFileEnum" function.
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BOOL bAtLeastOne = FALSE;//Contains the state whether at least one record
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//found for this query
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DWORD dwFormat = SR_FORMAT_TABLE;//Stores format flag required to show
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// result on console. Default format
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//is TABLE
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LPFILE_INFO_3 pFileInfo3_1 = NULL;// LPFILE_INFO_3 structure contains the
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// identification number and other
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// pertinent information about files,
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// devices, and pipes.
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LPSERVER_INFO_100 pServerInfo = NULL;//The SERVER_INFO_100 structure
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//contains information about the
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//specified server, including the name
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//and platform
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DWORD dwError = 0;//Contains return value for "NetFileEnum" function
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LONG lRowNo = 0;// Row index variable
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LPTSTR pszServerType = new TCHAR[MIN_MEMORY_REQUIRED+1];//Stores server type
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// information
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AFP_FILE_INFO* pFileInfo = NULL;
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DWORD hEnumHandle = 0;
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HRESULT hr = S_OK;
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NET_API_STATUS retval = NERR_Success;
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AFP_SERVER_HANDLE ulSFMServerConnection = 0;
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typedef DWORD (*FILEENUMPROC)(AFP_SERVER_HANDLE,LPBYTE*,DWORD,LPDWORD,LPDWORD,LPDWORD);
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typedef DWORD (*CONNECTPROC) (LPWSTR,PAFP_SERVER_HANDLE);
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typedef DWORD (*MEMFREEPROC) (LPVOID);
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TCHAR szDllPath[MAX_PATH+1] = NULL_STRING;// buffer for Windows directory
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// AfpAdminConnect and AfpAdminFileEnum functions are undocumented function
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// and used only for MAC client.
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CONNECTPROC AfpAdminConnect = NULL; // Function Pointer
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FILEENUMPROC AfpAdminFileEnum = NULL;// Function Pointer
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MEMFREEPROC AfpAdminBufferFree = NULL; // Function Pointer
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HMODULE hModule = 0; // To store retval for LoadLibrary
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DWORD dwIndx = 0; // Indx variable
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DWORD dwRow = 0; // Row No indx.
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//server name to be shown
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LPTSTR pszServerNameToShow = new TCHAR[MIN_MEMORY_REQUIRED+ 1];
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LPTSTR pszTemp = new TCHAR[MIN_MEMORY_REQUIRED+ 1];
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//Some column required to hide in non verbose mode query
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DWORD dwMask = bVerbose?SR_TYPE_STRING:SR_HIDECOLUMN|SR_TYPE_STRING;
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TCOLUMNS pMainCols[]=
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{
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{NULL_STRING,COL_WIDTH_HOSTNAME,dwMask,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_ID,SR_TYPE_STRING,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_ACCESSED_BY,SR_TYPE_STRING,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_TYPE,SR_TYPE_STRING,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_LOCK,dwMask,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_OPEN_MODE,dwMask,NULL_STRING,NULL,NULL},
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{NULL_STRING,COL_WIDTH_OPEN_FILE,SR_TYPE_STRING|(SR_NO_TRUNCATION&~(SR_WORDWRAP)),NULL_STRING,NULL,NULL}
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};
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TARRAY pColData = CreateDynamicArray();//array to stores
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//result
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if((pszServerNameToShow == NULL)||
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(pszServerType == NULL)||
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(pColData == NULL)||
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(pszTemp == NULL))
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{
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SetLastError(ERROR_NOT_ENOUGH_MEMORY);
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DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
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ShowLastError(stderr);
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SAFEDELETE(pszServerNameToShow);
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SAFEDELETE(pszServerType);
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SAFERELDYNARRAY(pColData);
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SAFEDELETE(pszTemp);
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return FALSE;
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}
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// Initialize allocated arrays
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memset(pszServerNameToShow,0,MIN_MEMORY_REQUIRED*sizeof(TCHAR));
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memset(pszServerType,0,MIN_MEMORY_REQUIRED*sizeof(TCHAR));
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// Fill column headers with TEXT.
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lstrcpy(pMainCols[0].szColumn, COL_HOSTNAME);
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lstrcpy(pMainCols[1].szColumn, COL_ID);
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lstrcpy(pMainCols[2].szColumn, COL_ACCESSED_BY);
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lstrcpy(pMainCols[3].szColumn, COL_TYPE);
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lstrcpy(pMainCols[4].szColumn, COL_LOCK);
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lstrcpy(pMainCols[5].szColumn, COL_OPEN_MODE);
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lstrcpy(pMainCols[6].szColumn, COL_OPEN_FILE);
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if(pszFormat!=NULL)
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{
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if(lstrcmpi(pszFormat,GetResString(IDS_LIST))==0)
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{
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dwFormat = SR_FORMAT_LIST;
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}
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else if(lstrcmpi(pszFormat,GetResString(IDS_CSV))==0)
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{
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dwFormat = SR_FORMAT_CSV;
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}
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}
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// Check if local machine
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if((pszServer == NULL)||
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(IsLocalSystem(pszServer)==TRUE))
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{
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DWORD dwBuffLength;
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dwBuffLength = MAX_COMPUTERNAME_LENGTH + 1 ;
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// Gets the name of computer for local machine.
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GetComputerName(pszServerNameToShow,&dwBuffLength);
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// Show Local Open files
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DoLocalOpenFiles (dwFormat,bShowNoHeader,bVerbose,NULL_STRING);
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ShowMessage(stdout,GetResString(IDS_SHARED_OPEN_FILES));
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ShowMessage(stdout,GetResString(IDS_LOCAL_OPEN_FILES_SP2));
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}
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else
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{
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// pszServername can be changed in GetHostName function
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// so a copy of pszServer is passed.
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lstrcpy(pszServerNameToShow, pszServer);
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if(GetHostName(pszServerNameToShow)==FALSE)
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{
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SAFEDELETE(pszServerNameToShow);
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SAFEDELETE(pszServerType);
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SAFERELDYNARRAY(pColData);
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SAFEDELETE(pszTemp);
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return FALSE;
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}
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}
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// Server type is "Windows" as NetFileEnum enumerates file only for
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// files opened for windows client
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lstrcpy(pszServerType,GetResString(IDS_STRING_WINDOWS));
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do
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{
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//The NetFileEnum function returns information about some
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// or all open files (from Windows client) on a server
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dwError = NetFileEnum( pszServer, NULL, NULL, 3,
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(LPBYTE*)&pFileInfo3_1,
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MAX_PREFERRED_LENGTH,
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&dwEntriesRead,
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&dwTotalEntries,
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(PDWORD_PTR)&dwResumeHandle );
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if(dwError == ERROR_ACCESS_DENIED)
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{
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SetLastError(ERROR_ACCESS_DENIED);
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DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
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ShowLastError(stderr);
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SAFEDELETE(pszServerNameToShow);
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SAFEDELETE(pszServerType);
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SAFERELDYNARRAY(pColData);
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SAFEDELETE(pszTemp);
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return FALSE;
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}
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if( dwError == NERR_Success || dwError == ERROR_MORE_DATA )
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{
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for ( dwIndx = 0; dwIndx < dwEntriesRead;
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dwIndx++, pFileInfo3_1++ )
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{
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// Now fill the result to dynamic array "pColData"
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DynArrayAppendRow( pColData, 0 );
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// Hostname
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DynArrayAppendString2(pColData,dwRow,pszServerNameToShow,0);
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// id
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wsprintf(pszTemp,_T("%lu"),pFileInfo3_1->fi3_id);
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DynArrayAppendString2(pColData ,dwRow,pszTemp,0);
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// Accessed By
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if(lstrlen(pFileInfo3_1->fi3_username)<=0)
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{
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DynArrayAppendString2(pColData,dwRow,
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GetResString(IDS_NA),0);
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}
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else
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{
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DynArrayAppendString2(pColData,dwRow,
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pFileInfo3_1->fi3_username,0);
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}
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// Type
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DynArrayAppendString2(pColData,dwRow,pszServerType,0);
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// Locks
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wsprintf(pszTemp,_T("%ld"),pFileInfo3_1->fi3_num_locks);
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DynArrayAppendString2(pColData ,dwRow,pszTemp,0);
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// Checks for open file mode
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if((pFileInfo3_1->fi3_permissions & PERM_FILE_READ)&&
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(pFileInfo3_1->fi3_permissions & PERM_FILE_WRITE ))
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{
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DynArrayAppendString2(pColData,dwRow,
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GetResString(IDS_READ_WRITE),0);
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}
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else if(pFileInfo3_1->fi3_permissions & PERM_FILE_WRITE )
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{
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DynArrayAppendString2(pColData,dwRow,
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GetResString(IDS_WRITE),0);
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}
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else if(pFileInfo3_1->fi3_permissions & PERM_FILE_READ )
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{
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DynArrayAppendString2(pColData,dwRow,
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GetResString(IDS_READ),0);
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}
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else
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{
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DynArrayAppendString2(pColData,dwRow,
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GetResString(IDS_NOACCESS),0);
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}
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// If show result is table mode and if
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// open file length is gerater than
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// column with, Open File string cut from right
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// by COL_WIDTH_OPEN_FILE-5 and "..." will be
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// inserted before the string.
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// Example o/p: ...notepad.exe
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szCHString = pFileInfo3_1->fi3_pathname;
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if(bVerbose==FALSE)
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{
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if((szCHString.GetLength()>(COL_WIDTH_OPEN_FILE-5))&&
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(dwFormat == SR_FORMAT_TABLE))
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{
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// If file path is too big to fit in column width
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// then it is cut like..
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// c:\...\rest_of_the_path.
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CHString szTemp = szCHString.Right(COL_WIDTH_OPEN_FILE-5);;
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DWORD dwTemp = szTemp.GetLength();
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szTemp = szTemp.Mid(szTemp.Find(SINGLE_SLASH),
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dwTemp);
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szCHString.Format(L"%s%s%s",szCHString.Mid(0,3),
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DOT_DOT,
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szTemp);
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pMainCols[6].dwWidth = COL_WIDTH_OPEN_FILE+1;
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}
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}
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else
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{
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pMainCols[6].dwWidth = 80;
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}
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// Open File name
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DynArrayAppendString2(pColData,dwRow,
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(LPCWSTR)szCHString,0);
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bAtLeastOne = TRUE;
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dwRow++;
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}// Enf for loop
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}
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// Free the block
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if( pFileInfo3_1 !=NULL)
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{
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NetApiBufferFree( pFileInfo3_1 );
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pFileInfo3_1 = NULL;
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}
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} while ( dwError == ERROR_MORE_DATA );
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// Now Enumerate Open files for MAC Client..................
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// Server type is "Machintosh" as AfpAdminFileEnum enumerates file only for
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// files opened for Mac client
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lstrcpy(pszServerType,MAC_OS);
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do
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{
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// DLL required stored always in \windows\system32 directory....
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// so get windows directory first.
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if(GetSystemDirectory(szDllPath, MAX_PATH)!= 0)
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{
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lstrcat(szDllPath,MAC_DLL_FILE_NAME); // appending dll file name
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hModule = ::LoadLibrary (szDllPath);
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if(hModule==NULL)
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{
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DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
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ShowLastError(stderr); // Shows the error string set by API function.
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SAFEDELETE(pszServerNameToShow);
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SAFEDELETE(pszServerType);
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SAFERELDYNARRAY(pColData);
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SAFEDELETE(pszTemp);
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return FALSE;
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}
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}
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else
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{
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DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
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ShowLastError(stderr); // Shows the error string set by API function.
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SAFEDELETE(pszServerNameToShow);
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SAFEDELETE(pszServerType);
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SAFERELDYNARRAY(pColData);
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|
|
SAFEDELETE(pszTemp);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
AfpAdminConnect = (CONNECTPROC)::GetProcAddress (hModule,"AfpAdminConnect");
|
||
|
|
AfpAdminFileEnum = (FILEENUMPROC)::GetProcAddress (hModule,"AfpAdminFileEnum");
|
||
|
|
AfpAdminBufferFree = (MEMFREEPROC)::GetProcAddress (hModule,"AfpAdminBufferFree");
|
||
|
|
|
||
|
|
if((AfpAdminConnect == NULL) ||
|
||
|
|
(AfpAdminFileEnum == NULL) ||
|
||
|
|
(AfpAdminBufferFree == NULL))
|
||
|
|
{
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr); // Shows the error string set by API function.
|
||
|
|
SAFEDELETE(pszServerNameToShow);
|
||
|
|
SAFEDELETE(pszServerType);
|
||
|
|
SAFERELDYNARRAY(pColData);
|
||
|
|
SAFEDELETE(pszTemp);
|
||
|
|
FREE_LIBRARY(hModule);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Connection ID is required for AfpAdminFileEnum function.
|
||
|
|
// So connect to server to get connect id...
|
||
|
|
DWORD retval_connect = AfpAdminConnect(const_cast<LPWSTR>(pszServer),
|
||
|
|
&ulSFMServerConnection );
|
||
|
|
if(retval_connect!=0)
|
||
|
|
{
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr); // Shows the error string set by API function.
|
||
|
|
SAFEDELETE(pszServerNameToShow);
|
||
|
|
SAFEDELETE(pszServerType);
|
||
|
|
SAFERELDYNARRAY(pColData);
|
||
|
|
SAFEDELETE(pszTemp);
|
||
|
|
FREE_LIBRARY(hModule);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//The AfpAdminFileEnum function returns information about some
|
||
|
|
// or all open files (from MAC client) on a server
|
||
|
|
dwError = AfpAdminFileEnum( ulSFMServerConnection,
|
||
|
|
(PBYTE*)&pFileInfo,
|
||
|
|
(DWORD)-1L,
|
||
|
|
&dwEntriesRead,
|
||
|
|
&dwTotalEntries,
|
||
|
|
&hEnumHandle );
|
||
|
|
if(dwError == ERROR_ACCESS_DENIED)
|
||
|
|
{
|
||
|
|
SetLastError(ERROR_ACCESS_DENIED);
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr);
|
||
|
|
SAFEDELETE(pszServerNameToShow);
|
||
|
|
SAFEDELETE(pszServerType);
|
||
|
|
SAFERELDYNARRAY(pColData);
|
||
|
|
SAFEDELETE(pszTemp);
|
||
|
|
FREE_LIBRARY(hModule);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if( dwError == NERR_Success || dwError == ERROR_MORE_DATA )
|
||
|
|
{
|
||
|
|
|
||
|
|
for ( dwIndx = 0 ; dwIndx < dwEntriesRead;
|
||
|
|
dwIndx++, pFileInfo++ )
|
||
|
|
{
|
||
|
|
|
||
|
|
// Now fill the result to dynamic array "pColData"
|
||
|
|
DynArrayAppendRow( pColData, 0 );
|
||
|
|
// Hostname
|
||
|
|
DynArrayAppendString2(pColData,dwRow,pszServerNameToShow,0);
|
||
|
|
// id
|
||
|
|
wsprintf(pszTemp,_T("%lu"),pFileInfo->afpfile_id );
|
||
|
|
DynArrayAppendString2(pColData ,dwRow,pszTemp,0);
|
||
|
|
// Accessed By
|
||
|
|
if(lstrlen(pFileInfo->afpfile_username )<=0)
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
GetResString(IDS_NA),0);
|
||
|
|
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
pFileInfo->afpfile_username,0);
|
||
|
|
|
||
|
|
}
|
||
|
|
// Server Type
|
||
|
|
DynArrayAppendString2(pColData,dwRow,pszServerType,0);
|
||
|
|
// Locks
|
||
|
|
wsprintf(pszTemp,_T("%ld"),pFileInfo->afpfile_num_locks );
|
||
|
|
DynArrayAppendString2(pColData ,dwRow,pszTemp,0);
|
||
|
|
|
||
|
|
// Checks for open file mode
|
||
|
|
if((pFileInfo->afpfile_open_mode & AFP_OPEN_MODE_READ)&&
|
||
|
|
(pFileInfo->afpfile_open_mode & AFP_OPEN_MODE_WRITE ))
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
GetResString(IDS_READ_WRITE),0);
|
||
|
|
}
|
||
|
|
else if(pFileInfo->afpfile_open_mode & AFP_OPEN_MODE_WRITE )
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
GetResString(IDS_WRITE),0);
|
||
|
|
|
||
|
|
}
|
||
|
|
else if(pFileInfo->afpfile_open_mode & AFP_OPEN_MODE_READ )
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
GetResString(IDS_READ),0);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
GetResString(IDS_NOACCESS),0);
|
||
|
|
}
|
||
|
|
|
||
|
|
// If show result is table mode and if
|
||
|
|
// open file length is gerater than
|
||
|
|
// column with, Open File string cut from right
|
||
|
|
// by COL_WIDTH_OPEN_FILE-5 and "..." will be
|
||
|
|
// inserted before the string.
|
||
|
|
// Example o/p: ...notepad.exe
|
||
|
|
szCHString = pFileInfo->afpfile_path ;
|
||
|
|
|
||
|
|
if(bVerbose==FALSE)
|
||
|
|
{
|
||
|
|
if((szCHString.GetLength()>(COL_WIDTH_OPEN_FILE-5))&&
|
||
|
|
(dwFormat == SR_FORMAT_TABLE))
|
||
|
|
{
|
||
|
|
// If file path is too big to fit in column width
|
||
|
|
// then it is cut like..
|
||
|
|
// c:\...\rest_of_the_path.
|
||
|
|
CHString szTemp = szCHString.Right(COL_WIDTH_OPEN_FILE-5);;
|
||
|
|
DWORD dwTemp = szTemp.GetLength();
|
||
|
|
szTemp = szTemp.Mid(szTemp.Find(SINGLE_SLASH),
|
||
|
|
dwTemp);
|
||
|
|
szCHString.Format(L"%s%s%s",szCHString.Mid(0,3),
|
||
|
|
DOT_DOT,
|
||
|
|
szTemp);
|
||
|
|
pMainCols[6].dwWidth = COL_WIDTH_OPEN_FILE+1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
|
||
|
|
pMainCols[6].dwWidth = 80;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Open File name
|
||
|
|
DynArrayAppendString2(pColData,dwRow,
|
||
|
|
(LPCWSTR)szCHString,0);
|
||
|
|
|
||
|
|
bAtLeastOne = TRUE;
|
||
|
|
dwRow++;
|
||
|
|
}// Enf for loop
|
||
|
|
}
|
||
|
|
// Free the block
|
||
|
|
if( pFileInfo!=NULL)
|
||
|
|
{
|
||
|
|
AfpAdminBufferFree( pFileInfo );
|
||
|
|
pFileInfo = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( dwError == ERROR_MORE_DATA );
|
||
|
|
|
||
|
|
if(bAtLeastOne==FALSE)// if not a single open file found, show info
|
||
|
|
// as - INFO: No open file found.
|
||
|
|
{
|
||
|
|
ShowMessage(stdout,GetResString(IDS_NO_OPENFILES));
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
|
||
|
|
// Display output result.
|
||
|
|
if(bShowNoHeader==TRUE)
|
||
|
|
{
|
||
|
|
dwFormat |=SR_NOHEADER;
|
||
|
|
}
|
||
|
|
//Output should start after one blank line
|
||
|
|
ShowMessage(stdout,BLANK_LINE);
|
||
|
|
ShowResults(MAX_OUTPUT_COLUMN,pMainCols,dwFormat,pColData);
|
||
|
|
// Destroy dynamic array.
|
||
|
|
SAFERELDYNARRAY(pColData);
|
||
|
|
|
||
|
|
}
|
||
|
|
SAFEDELETE(pszServerNameToShow);
|
||
|
|
SAFEDELETE(pszServerType);
|
||
|
|
SAFERELDYNARRAY(pColData);
|
||
|
|
SAFEDELETE(pszTemp);
|
||
|
|
FREE_LIBRARY(hModule);
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
// ***************************************************************************
|
||
|
|
// Routine Description:
|
||
|
|
// This routine gets Hostname of remote computer
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// [in/out] pszServer = ServerName
|
||
|
|
// Return Value:
|
||
|
|
// TRUE : if server name retured successfully
|
||
|
|
// FALSE: otherwise
|
||
|
|
// ***************************************************************************
|
||
|
|
BOOL GetHostName(PTCHAR pszServer)
|
||
|
|
{
|
||
|
|
if(pszServer == NULL)
|
||
|
|
return FALSE;
|
||
|
|
BOOL bReturnValue = FALSE; // function return state.
|
||
|
|
char* pszServerName = new char[MIN_MEMORY_REQUIRED+1];//char is used as winsock
|
||
|
|
// required these type.
|
||
|
|
HOSTENT* hostEnt = NULL;//The Windows Sockets hostEnt structure is
|
||
|
|
//used by functions to store information
|
||
|
|
//about a given host.
|
||
|
|
|
||
|
|
WORD wVersionRequested; //Variable used to store highest version
|
||
|
|
//number that Windows Sockets can support.
|
||
|
|
// The high-order byte specifies the minor
|
||
|
|
// version (revision) number; the low-order
|
||
|
|
// byte specifies the major version number
|
||
|
|
WSADATA wsaData;//Variable receive details of the Windows Sockets
|
||
|
|
//implementation
|
||
|
|
DWORD dwErr; // strore error code
|
||
|
|
if(pszServerName==NULL)
|
||
|
|
{
|
||
|
|
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
//Release allocated memory safely
|
||
|
|
ShowLastError(stderr);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
wVersionRequested = MAKEWORD( 2, 2 );
|
||
|
|
|
||
|
|
//WSAStartup function initiates use of
|
||
|
|
//Ws2_32.dll by a process
|
||
|
|
dwErr = WSAStartup( wVersionRequested, &wsaData );
|
||
|
|
if(dwErr!=0)
|
||
|
|
{
|
||
|
|
SetLastError(WSAGetLastError());
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr);
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
// Initialize arrays...
|
||
|
|
memset(pszServerName,0,MIN_MEMORY_REQUIRED);
|
||
|
|
GetAsMultiByteString(pszServer,pszServerName,MIN_MEMORY_REQUIRED);
|
||
|
|
if(IsValidIPAddress(pszServer))
|
||
|
|
{
|
||
|
|
unsigned long ulInetAddr = 0;//unsigned long is used as winsock
|
||
|
|
// required this type. Variable
|
||
|
|
// used
|
||
|
|
|
||
|
|
// inet_addr function converts a string containing an
|
||
|
|
//(Ipv4) Internet Protocol dotted address into a proper
|
||
|
|
//address for the IN_ADDR structure.
|
||
|
|
ulInetAddr = inet_addr( pszServerName );
|
||
|
|
|
||
|
|
// gethostbyaddr function retrieves the host information
|
||
|
|
//corresponding to a network address.
|
||
|
|
hostEnt = gethostbyaddr( (char *) &ulInetAddr,
|
||
|
|
sizeof( ulInetAddr ),
|
||
|
|
PF_INET);
|
||
|
|
|
||
|
|
if(hostEnt != NULL)
|
||
|
|
{
|
||
|
|
// As hostEnt->h_name is of type char so convert it
|
||
|
|
// to unicode string
|
||
|
|
GetAsUnicodeStringEx(hostEnt->h_name,pszServer,
|
||
|
|
MAX_COMPUTERNAME_LENGTH);
|
||
|
|
bReturnValue = GetHostNameFromFQDN( pszServer);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
SetLastError(WSAGetLastError());
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Check validity for the server name
|
||
|
|
else if (IsValidServer(pszServer))
|
||
|
|
{
|
||
|
|
|
||
|
|
hostEnt = gethostbyname(pszServerName);
|
||
|
|
if(hostEnt != NULL)
|
||
|
|
{
|
||
|
|
// As hostEnt->h_name is of type char so convert it
|
||
|
|
// to unicode string
|
||
|
|
GetAsUnicodeStringEx(hostEnt->h_name,pszServer,
|
||
|
|
MAX_COMPUTERNAME_LENGTH);
|
||
|
|
bReturnValue = GetHostNameFromFQDN( pszServer);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
SetLastError(WSAGetLastError());
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// server name is incorrect, show error message.
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR ));
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_INVALID_SERVER_NAME));
|
||
|
|
}
|
||
|
|
//WSACleanup function terminates use of the Ws2_32.dll.
|
||
|
|
WSACleanup( );
|
||
|
|
SAFEDELETE(pszServerName);
|
||
|
|
return bReturnValue;
|
||
|
|
}
|
||
|
|
// ***************************************************************************
|
||
|
|
// Routine Description:
|
||
|
|
// This routine gets Hostname from FQDN name.
|
||
|
|
//
|
||
|
|
// Arguments:
|
||
|
|
// [in/out] pszServer = ServerName
|
||
|
|
// Return Value:
|
||
|
|
// TRUE : if server name retured successfully
|
||
|
|
// FALSE: otherwise
|
||
|
|
// ***************************************************************************
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
GetHostNameFromFQDN(LPTSTR pszServer)
|
||
|
|
{
|
||
|
|
BOOL bReturnValue = FALSE;
|
||
|
|
if(pszServer==NULL)
|
||
|
|
return FALSE;
|
||
|
|
LPTSTR pszTemp = new TCHAR[lstrlen(pszServer)+1];
|
||
|
|
LPTSTR pszTempHeadPos;
|
||
|
|
|
||
|
|
if(pszTemp==NULL)
|
||
|
|
{
|
||
|
|
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
|
||
|
|
DISPLAY_MESSAGE(stderr,GetResString(IDS_ID_SHOW_ERROR));
|
||
|
|
ShowLastError(stderr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// Following is done to chekc Fully Qualified Domain Name.
|
||
|
|
// This will extract a string coming before "."
|
||
|
|
// for example FQDN = akhil.wipro.com...
|
||
|
|
// String of interest is akhil, which will be exracted
|
||
|
|
// in following manner.
|
||
|
|
pszTempHeadPos = pszTemp;
|
||
|
|
pszTemp = _tcstok(pszServer,SINGLE_DOT);
|
||
|
|
pszTemp = 0;// putting explicitly NULL character. at
|
||
|
|
// the place where "." comes.
|
||
|
|
|
||
|
|
bReturnValue = TRUE;
|
||
|
|
}
|
||
|
|
SAFEDELETE(pszTempHeadPos);
|
||
|
|
return bReturnValue;
|
||
|
|
}
|