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ccf395ce98481e2c628e000784c8a01548dbe695
mars-flaim/flaim/util/viewblk.cpp
ahodgkinson f54e6ce080 Changed license to LGPL. 
git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@1009 0109f412-320b-0410-ab79-c3e0c5ffbbe6
2007-01-23 09:38:48 +00:00

2816 lines
74 KiB
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//-------------------------------------------------------------------------
// Desc: View database blocks.
// Tabs: 3
//
// Copyright (c) 1992-2007 Novell, Inc. All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version 2.1
// of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, contact Novell, Inc.
//
// To contact Novell about this file by physical or electronic mail,
// you may find current contact information at www.novell.com.
//
// $Id$
//------------------------------------------------------------------------------
#include "view.h"
FSTATIC void InitStatusBits(
FLMBYTE * StatusBytes);
FSTATIC void OrStatusBits(
FLMBYTE * DestStatusBytes,
FLMBYTE * SrcStatusBytes);
FSTATIC void SetStatusBit(
FLMBYTE * StatusBytes,
eCorruptionType eCorruptionCode);
FSTATIC FLMBOOL TestStatusBit(
FLMBYTE * StatusBytes,
eCorruptionType eCorruptionCode);
FSTATIC FLMINT OutputElmRecord(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMUINT LabelWidth,
STATE_INFO * StateInfo,
FLMBYTE * StatusBytes,
FLMUINT StatusOnlyFlag);
FSTATIC FLMINT OutBlkHdrExpNum(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
eColorType mbc,
eColorType mfc,
eColorType sbc,
eColorType sfc,
FLMUINT LabelWidth,
FLMINT iLabelIndex,
FLMUINT FileNumber,
FLMUINT FileOffset,
FLMBYTE * ValuePtr,
FLMUINT ValueType,
FLMUINT ModType,
FLMUINT ExpNum,
FLMUINT IgnoreExpNum,
FLMUINT Option);
FSTATIC void FormatBlkType(
FLMBYTE * TempBuf,
FLMUINT BlkType);
FSTATIC FLMINT OutputStatus(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMUINT LabelWidth,
FLMINT iLabelIndex,
FLMBYTE * StatusFlags);
FSTATIC FLMINT OutputHexValue(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMINT LabelIndex,
FLMUINT FileNumber,
FLMUINT FileOffset,
FLMBYTE * ValPtr,
FLMUINT ValLen,
FLMUINT CopyVal,
FLMUINT uiModFlag);
FSTATIC FLMINT OutputLeafElements(
FLMUINT Col,
FLMUINT * RowRV,
FLMBYTE * BlkPtr,
BLK_EXP_p BlkExp,
FLMBYTE * BlkStatusRV,
FLMUINT StatusOnlyFlag,
FLMBOOL bEncrypted);
FSTATIC FLMINT OutputNonLeafElements(
FLMUINT Col,
FLMUINT * RowRV,
FLMBYTE * BlkPtr,
BLK_EXP_p BlkExp,
FLMBYTE * BlkStatusRV,
FLMUINT StatusOnlyFlag,
FLMBOOL bEncrypted);
FSTATIC void SetSearchTopBottom(
void
);
extern FLMUINT gv_uiTopLine;
extern FLMUINT gv_uiBottomLine;
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC void InitStatusBits(
FLMBYTE * StatusBytes
)
{
FLMUINT i;
if (StatusBytes != NULL)
{
for( i = 0; i < NUM_STATUS_BYTES; i++)
StatusBytes [i] = 0;
}
}
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC void OrStatusBits(
FLMBYTE * DestStatusBytes,
FLMBYTE * SrcStatusBytes
)
{
FLMUINT i;
if ((DestStatusBytes != NULL) && (SrcStatusBytes != NULL))
{
for( i = 0; i < NUM_STATUS_BYTES; i++)
DestStatusBytes [i] |= SrcStatusBytes [i];
}
}
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC void SetStatusBit(
FLMBYTE * StatusBytes,
eCorruptionType eCorruptionCode
)
{
FLMUINT ByteOffset = ((FLMUINT)eCorruptionCode - 1) / 8;
FLMBYTE BitToSet = (FLMBYTE)0x80 >> (FLMBYTE)(((FLMUINT)eCorruptionCode - 1) % 8);
if (StatusBytes != NULL)
StatusBytes [ByteOffset] |= BitToSet;
}
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC FLMBOOL TestStatusBit(
FLMBYTE * StatusBytes,
eCorruptionType eCorruptionCode
)
{
if (eCorruptionCode == FLM_NO_CORRUPTION)
{
return( FALSE);
}
else
{
FLMUINT ByteOffset = ((FLMUINT)eCorruptionCode - 1) / 8;
FLMBYTE BitToTest = (FLMBYTE)0x80 >> (FLMBYTE)(((FLMUINT)eCorruptionCode - 1) % 8);
if (StatusBytes == NULL)
{
return( FALSE);
}
else
{
return( (StatusBytes [ByteOffset] & BitToTest) ? TRUE : FALSE);
}
}
}
/***************************************************************************
Name: OutputStatus
Desc: This routine outputs all of the status bits which were set for
a block. Each error discovered in a block will be displayed on
a separate line.
*****************************************************************************/
FSTATIC FLMINT OutputStatus(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMUINT LabelWidth,
FLMINT iLabelIndex,
FLMBYTE * StatusFlags)
{
FLMUINT Row = *RowRV;
FLMUINT HadError = FALSE;
FLMUINT uiLoop;
/* Output each error on a separate line */
if (StatusFlags)
{
for( uiLoop = (FLMUINT)FLM_NO_CORRUPTION + 1; uiLoop < (FLMUINT)FLM_LAST_CORRUPT_ERROR; uiLoop++)
{
if (TestStatusBit( StatusFlags, (eCorruptionType)uiLoop))
{
HadError = TRUE;
if (!ViewAddMenuItem( iLabelIndex, LabelWidth,
VAL_IS_ERR_INDEX, (FLMUINT)uiLoop, 0,
0, VIEW_INVALID_FILE_OFFSET, 0, MOD_DISABLED,
Col, Row++, 0,
FLM_RED, FLM_LIGHTGRAY,
FLM_RED, FLM_LIGHTGRAY))
return( 0);
/* Set iLabelIndex to -1 so that it will not be displayed after */
/* the first one. */
iLabelIndex = -1;
}
}
}
/* If there were no errors in the block, just output an OK status */
if (!HadError)
{
if (!ViewAddMenuItem( iLabelIndex, LabelWidth,
VAL_IS_LABEL_INDEX, (FLMUINT)LBL_OK, 0,
0, VIEW_INVALID_FILE_OFFSET, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
}
*RowRV = Row;
return( 1);
}
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC FLMINT OutputElmRecord(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMUINT LabelWidth,
STATE_INFO * StateInfo,
FLMBYTE * StatusBytes,
FLMUINT StatusOnlyFlag)
{
eCorruptionType eCorruptionCode;
FLMUINT SaveElmRecOffset;
FLMBYTE FOPStatusBytes [NUM_STATUS_BYTES];
FLMUINT FOPType;
FLMUINT FieldType;
FLMUINT Row = *RowRV;
FLMUINT FileOffset;
FLMUINT FileNumber;
FLMUINT FldOverhead;
FLMBYTE * FieldPtr;
FLMUINT FldFlags;
for( ;;)
{
InitStatusBits( FOPStatusBytes);
SaveElmRecOffset = StateInfo->uiElmRecOffset;
FieldPtr = &StateInfo->pElmRec [SaveElmRecOffset];
FileOffset = StateInfo->uiBlkAddress +
(StateInfo->pElmRec - StateInfo->pBlk) +
SaveElmRecOffset;
FileNumber = FSGetFileNumber( StateInfo->uiBlkAddress);
if ((eCorruptionCode = flmVerifyElmFOP( StateInfo)) != FLM_NO_CORRUPTION)
{
SetStatusBit( FOPStatusBytes, eCorruptionCode);
SetStatusBit( StatusBytes, eCorruptionCode);
}
/* Output the field overhead */
if (!StatusOnlyFlag)
{
Row++;
/* First output the FOP type */
switch( StateInfo->uiFOPType)
{
case FLM_FOP_CONT_DATA:
FOPType = LBL_FOP_CONT;
FldOverhead = 0;
break;
case FLM_FOP_STANDARD:
FOPType = LBL_FOP_STD;
FldOverhead = 2;
break;
case FLM_FOP_OPEN:
FOPType = LBL_FOP_OPEN;
FldFlags = FOP_GET_FLD_FLAGS( FieldPtr);
FldOverhead = ((FOP_2BYTE_FLDNUM( FldFlags)) ? 3 : 2) +
((FOP_2BYTE_FLDLEN( FldFlags)) ? 2 : 1);
break;
case FLM_FOP_TAGGED:
FOPType = LBL_FOP_TAGGED;
FldFlags = FOP_GET_FLD_FLAGS( FieldPtr);
FldOverhead = ((FOP_2BYTE_FLDNUM( FldFlags)) ? 4 : 3) +
((FOP_2BYTE_FLDLEN( FldFlags)) ? 2 : 1);
break;
case FLM_FOP_NO_VALUE:
FOPType = LBL_FOP_NO_VALUE;
FldFlags = FOP_GET_FLD_FLAGS( FieldPtr);
FldOverhead = ((FOP_2BYTE_FLDNUM( FldFlags)) ? 3 : 2);
break;
case FLM_FOP_JUMP_LEVEL:
FOPType = LBL_FOP_SET_LEVEL;
FldOverhead = 1;
break;
case FLM_FOP_REC_INFO:
FOPType = LBL_FOP_REC_INFO;
FldFlags = FOP_GET_FLD_FLAGS( FieldPtr);
FldOverhead = ((FOP_2BYTE_FLDLEN( FldFlags)) ? 3 : 2);
break;
case FLM_FOP_ENCRYPTED:
FOPType = LBL_FOP_ENCRYPTED;
FldFlags = 0;
FldOverhead = 2;
break;
case FLM_FOP_BAD:
default:
FOPType = LBL_FOP_BAD;
FldOverhead = 0;
break;
}
if (!ViewAddMenuItem( LBL_FOP_TYPE, LabelWidth,
VAL_IS_LABEL_INDEX, (FLMUINT)FOPType, 0,
FileNumber, FileOffset, FldOverhead,
(FLMBYTE)(MOD_BINARY | (FLMBYTE)(!FldOverhead
? (FLMBYTE)MOD_DISABLED
: (FLMBYTE)0)),
Col, Row++, 0, FLM_BLUE, FLM_LIGHTGRAY,
FLM_BLUE, FLM_LIGHTGRAY))
return( 0);
/* Output the offset of the field within the element record */
if (!ViewAddMenuItem( LBL_FIELD_OFFSET, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)SaveElmRecOffset, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the field number, field type, and field level if applicable */
if ((StateInfo->uiFOPType != FLM_FOP_CONT_DATA) &&
(StateInfo->uiFOPType != FLM_FOP_JUMP_LEVEL) &&
(StateInfo->uiFOPType != FLM_FOP_BAD) &&
(StateInfo->uiFOPType != FLM_FOP_NEXT_DRN) &&
(StateInfo->uiFOPType != FLM_FOP_REC_INFO) &&
(eCorruptionCode != FLM_BAD_ELM_FLD_OVERHEAD))
{
if (!ViewAddMenuItem( LBL_FIELD_NUMBER, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo->uiFieldNum, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the field type */
switch( StateInfo->uiFieldType)
{
case FLM_TEXT_TYPE:
FieldType = LBL_TYPE_TEXT;
break;
case FLM_NUMBER_TYPE:
FieldType = LBL_TYPE_NUMBER;
break;
case FLM_BINARY_TYPE:
FieldType = LBL_TYPE_BINARY;
break;
case FLM_CONTEXT_TYPE:
FieldType = LBL_TYPE_CONTEXT;
break;
default:
FieldType = LBL_TYPE_UNKNOWN;
break;
}
if (!ViewAddMenuItem( LBL_FIELD_TYPE, LabelWidth,
VAL_IS_LABEL_INDEX, (FLMUINT)FieldType, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the field level */
if (!ViewAddMenuItem( LBL_FIELD_LEVEL, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo->uiFieldLevel, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
if (StateInfo->uiEncId)
{
if (!ViewAddMenuItem( LBL_ENC_ID, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo->uiEncId, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
}
}
/* Output the jump level for the jump FOP */
if (StateInfo->uiFOPType == FLM_FOP_JUMP_LEVEL)
{
if (!ViewAddMenuItem( LBL_JUMP_LEVEL, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo->uiJumpLevel, 0,
FileNumber, FileOffset, 0x07, MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
}
/* Output the field data length */
if (eCorruptionCode != FLM_BAD_ELM_FLD_OVERHEAD)
{
if (!ViewAddMenuItem( LBL_FIELD_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
StateInfo->uiFOPDataLen, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
}
}
/* Verify the field if it is entirely contained right here */
if ((eCorruptionCode == FLM_NO_CORRUPTION) &&
(StateInfo->uiFOPDataLen == (StateInfo->uiEncId
? StateInfo->uiEncFieldLen
: StateInfo->uiFieldLen) &&
(StateInfo->uiFOPDataLen > 0) &&
(StateInfo->uiFOPType != FLM_FOP_CONT_DATA)))
{
if (StateInfo->uiFOPType == FLM_FOP_REC_INFO)
{
eCorruptionCode = FLM_NO_CORRUPTION;
}
else
{
eCorruptionCode = flmVerifyField( StateInfo, StateInfo->pFOPData,
StateInfo->uiFOPDataLen,
StateInfo->uiFieldType);
}
if (eCorruptionCode != FLM_NO_CORRUPTION)
{
SetStatusBit( FOPStatusBytes, eCorruptionCode);
SetStatusBit( StatusBytes, eCorruptionCode);
}
}
/* Output the field status */
if ((!StatusOnlyFlag) && (eCorruptionCode != FLM_NO_CORRUPTION))
{
if (!OutputStatus( Col, &Row, bc, fc, LabelWidth,
LBL_FIELD_STATUS, FOPStatusBytes))
return( 0);
}
/* Output the data. If we had a bad overhead error, output */
/* the rest of the data in the element. */
if ((eCorruptionCode == FLM_BAD_ELM_FLD_OVERHEAD) ||
((eCorruptionCode != FLM_NO_CORRUPTION) &&
(StateInfo->uiElmRecOffset == SaveElmRecOffset)))
{
*RowRV = Row;
if (StatusOnlyFlag)
return( 1);
return( OutputHexValue( Col, RowRV, bc, fc,
(FLMUINT)((SaveElmRecOffset == 0)
? (FLMUINT)LBL_RECORD
: (FLMUINT)LBL_FIELD_DATA),
FileNumber, FileOffset,
&StateInfo->pElmRec [SaveElmRecOffset],
(FLMUINT)(StateInfo->uiElmRecLen - SaveElmRecOffset),
FALSE, MOD_BINARY));
}
else if ((!StatusOnlyFlag) && (StateInfo->uiFOPDataLen))
{
if (!OutputHexValue( Col, &Row, bc, fc, LBL_FIELD_DATA,
FSGetFileNumber( StateInfo->uiBlkAddress),
FSGetFileOffset( StateInfo->uiBlkAddress) +
(FLMUINT)(StateInfo->pFOPData - StateInfo->pBlk),
StateInfo->pFOPData,
StateInfo->uiFOPDataLen, FALSE, MOD_BINARY))
return( 0);
}
/* See if we have reached the end of the element - or quit */
/* if the element record offset is not changing */
if (StateInfo->uiElmRecOffset >= StateInfo->uiElmRecLen)
{
*RowRV = Row;
return( 1);
}
}
}
/***************************************************************************
Desc: This routine reads into memory a database block. It will also
allocate memory to hold the block if necessary. The block will
also be decrypted if necessary.
*****************************************************************************/
FLMINT ViewBlkRead(
FLMUINT BlkAddress,
FLMBYTE ** BlkPtrRV,
FLMUINT ReadLen,
FLMUINT16 * pui16CalcChkSum,
FLMUINT16 * pui16BlkChkSum,
FLMUINT * puiBytesReadRV,
FLMBOOL bShowPartialReadError,
FLMBOOL * pbIsEncBlock,
FLMBOOL bDecryptBlock,
FLMBOOL * pbEncrypted
)
{
RCODE rc;
FLMBYTE * BlkPtr;
char szErrMsg [80];
/* First allocate memory to read the block into */
/* if not already allocated */
if (!(*BlkPtrRV))
{
if (RC_BAD( rc = f_alloc( ReadLen, BlkPtrRV)))
{
ViewShowRCError( "allocating memory to read block", rc);
return( 0);
}
}
BlkPtr = *BlkPtrRV;
/* Read the block into memory - if block address is zero, don't */
/* read the first byte of the file. */
if (BlkAddress == 0)
{
BlkAddress++;
*BlkPtr++ = 0xFF;
ReadLen--;
}
if (RC_BAD( rc = gv_pSFileHdl->readBlock( BlkAddress, ReadLen,
BlkPtr, puiBytesReadRV)))
{
if (rc == FERR_IO_END_OF_FILE)
{
rc = FERR_OK;
f_memset( &BlkPtr [*puiBytesReadRV], 0xEE, ReadLen - *puiBytesReadRV);
if (bShowPartialReadError)
{
if (!(*puiBytesReadRV))
{
ViewShowRCError( "reading block", FERR_IO_END_OF_FILE);
return( 0);
}
else if (*puiBytesReadRV < ReadLen)
{
f_sprintf( szErrMsg,
"Only %u bytes of data were read (requested %u)",
(unsigned)*puiBytesReadRV, (unsigned)ReadLen);
ViewShowError( szErrMsg);
}
}
}
else
{
ViewShowRCError( "reading block", rc);
return( 0);
}
}
if (pui16BlkChkSum)
{
*pui16BlkChkSum = (FLMUINT16)(((FLMUINT)BlkPtr [BH_CHECKSUM_HIGH] << 8) +
BlkPtr [BH_CHECKSUM_LOW]);
}
/* Decrypt the block if necessary */
if (pui16CalcChkSum != NULL)
{
if (FB2UW( &BlkPtr [BH_BLK_END]) >
gv_ViewHdrInfo.FileHdr.uiBlockSize)
{
*pui16CalcChkSum = 0;
}
else
{
FLMBYTE ucChecksumHigh = BlkPtr [BH_CHECKSUM_HIGH];
FLMBYTE ucChecksumLow = BlkPtr [BH_CHECKSUM_LOW];
BlkCheckSum( BlkPtr, CHECKSUM_SET, BlkAddress,
gv_ViewHdrInfo.FileHdr.uiBlockSize);
*pui16CalcChkSum = (FLMUINT16)(((FLMUINT)BlkPtr [BH_CHECKSUM_HIGH] << 8) +
BlkPtr [BH_CHECKSUM_LOW]);
BlkPtr [BH_CHECKSUM_HIGH] = ucChecksumHigh;
BlkPtr [BH_CHECKSUM_LOW] = ucChecksumLow;
// 3x Format demands we write over the checksum value.
BlkPtr [BH_CHECKSUM_LOW] = (FLMBYTE) BlkAddress;
}
}
if (pbEncrypted || pbIsEncBlock || bDecryptBlock)
{
FLMUINT uiBlkType = BH_GET_TYPE( BlkPtr);
FLMUINT uiLfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
FLMUINT uiBufLen = getEncryptSize( BlkPtr);
FLMUINT uiEncLen = uiBufLen - BH_OVHD;
LFILE * pLFile;
IXD * pIxd;
FDB * pDb;
FFILE * pFile;
if (pbEncrypted)
{
*pbEncrypted = FALSE;
}
if (pbIsEncBlock)
{
*pbIsEncBlock = FALSE;
}
if (uiEncLen && uiLfNum &&
uiBlkType != BHT_FREE &&
uiBlkType != BHT_LFH_BLK &&
uiBlkType != BHT_PCODE_BLK)
{
ViewGetDictInfo();
if (gv_bViewHaveDictInfo)
{
pDb = (FDB *)gv_hViewDb;
pFile = pDb->pFile;
if (RC_OK( fdictGetIndex( pDb->pDict, pFile->bInLimitedMode,
uiLfNum, &pLFile, &pIxd, TRUE)) &&
pIxd && pIxd->uiEncId)
{
if (pbEncrypted)
{
*pbEncrypted = TRUE;
}
if (pbIsEncBlock)
{
*pbIsEncBlock = TRUE;
}
#ifdef FLM_USE_NICI
if (!pFile->bInLimitedMode && bDecryptBlock)
{
F_CCS * pCcs = (F_CCS *)pFile->pDictList->pIttTbl[ pIxd->uiEncId].pvItem;
flmAssert( pCcs);
if (RC_OK( pCcs->decryptFromStore( &BlkPtr [BH_OVHD],
uiEncLen, &BlkPtr [BH_OVHD], &uiEncLen)))
{
if (pbEncrypted)
{
*pbEncrypted = FALSE;
}
}
}
#endif
}
}
}
}
return( 1);
}
/***************************************************************************
Name: ViewGetLFH
Desc: This routine searches through the LFH blocks searching for the
LFH of a particular logical file.
*****************************************************************************/
FLMINT ViewGetLFH(
FLMUINT lfNum,
FLMBYTE * lfhRV,
FLMUINT * FileOffset
)
{
FLMUINT BlkAddress;
FLMUINT BlkCount = 0;
FLMBYTE * BlkPtr = NULL;
FLMUINT EndOfBlock;
FLMUINT Pos;
FLMUINT uiBytesRead;
FLMUINT GotLFH = 0;
/* Read the LFH blocks and get the information needed */
/* If we read too many, the file is probably corrupt. */
*FileOffset = 0;
BlkAddress = gv_ViewHdrInfo.FileHdr.uiFirstLFHBlkAddr;
while( BlkAddress != BT_END)
{
if ((!ViewBlkRead( BlkAddress, &BlkPtr,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
NULL, NULL, &uiBytesRead, FALSE,
NULL, FALSE, NULL)) ||
(!uiBytesRead))
break;
/* Count the blocks read to prevent too many from being read. */
/* We don't want to get into an infinite loop if the database */
/* is corrupted. */
BlkCount++;
/* Search through the block for the particular LFH which matches */
/* the one we are looking for. */
if (uiBytesRead <= BH_OVHD)
EndOfBlock = BH_OVHD;
else
{
EndOfBlock = FB2UW( &BlkPtr [BH_BLK_END]);
if (EndOfBlock > gv_ViewHdrInfo.FileHdr.uiBlockSize)
EndOfBlock = gv_ViewHdrInfo.FileHdr.uiBlockSize;
if (EndOfBlock > uiBytesRead)
EndOfBlock = uiBytesRead;
}
Pos = BH_OVHD;
while( Pos < EndOfBlock)
{
FLMUINT uiLfType;
FLMUINT uiLfNum;
/* See if we got the one we wanted */
uiLfType = BlkPtr [Pos + LFH_TYPE_OFFSET];
uiLfNum = FB2UW( &BlkPtr [Pos + LFH_LF_NUMBER_OFFSET]);
if ((uiLfType != LF_INVALID) && (lfNum == uiLfNum))
{
f_memcpy( lfhRV, &BlkPtr [Pos], LFH_SIZE);
GotLFH = 1;
*FileOffset = BlkAddress + Pos;
break;
}
Pos += LFH_SIZE;
}
/* If we didn't end right on end of block, return */
if ((Pos != EndOfBlock) || (GotLFH))
break;
/* If we have traversed too many blocks, things are probably corrupt */
if (BlkCount > 100)
break;
if (BH_NEXT_BLK + 4 <= uiBytesRead)
BlkAddress = FB2UD( &BlkPtr [BH_NEXT_BLK]);
else
BlkAddress = BT_END;
}
/* Be sure to free the block handle -- if one was allocated */
f_free( &BlkPtr);
return( GotLFH);
}
/***************************************************************************
Name: ViewGetLFName
Desc: This routine attempts to find an LFH for a particular logical
file. It then extracts the name from the LFH.
*****************************************************************************/
FLMINT ViewGetLFName(
FLMBYTE * lfName,
FLMUINT lfNum,
FLMBYTE * LFH,
FLMUINT * FileOffset)
{
FLMBYTE TempBuf [40];
if ((lfNum == 0) || (!ViewGetLFH( lfNum, LFH, FileOffset)))
{
*FileOffset = 0;
f_sprintf( (char *)TempBuf, "lfNum=%u", (unsigned)lfNum);
f_strcpy( (char *)lfName, (const char *)TempBuf);
return( 0);
}
else
{
TempBuf [0] = 0;
f_sprintf( (char *)(&TempBuf [f_strlen( (const char *)TempBuf)]), ", lfNum=%u", (unsigned)lfNum);
f_strcpy( (char *)lfName, (const char *)TempBuf);
return( 1);
}
}
/***************************************************************************
Name: OutBlkHdrExpNum
Desc: This routine outputs one of the number fields in the block
header. It checks the number against an expected value, and if
the number does not match the expected value also outputs the
value which was expected. This routine is used to output values
in the block header where we are expected certain values.
*****************************************************************************/
FSTATIC FLMINT OutBlkHdrExpNum(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
eColorType mbc,
eColorType mfc,
eColorType sbc,
eColorType sfc,
FLMUINT LabelWidth,
FLMINT iLabelIndex,
FLMUINT FileNumber,
FLMUINT FileOffset,
FLMBYTE * ValuePtr,
FLMUINT ValueType,
FLMUINT ModType,
FLMUINT ExpNum,
FLMUINT IgnoreExpNum,
FLMUINT Option)
{
FLMUINT Row = *RowRV;
FLMUINT Num = 0;
if (!Option)
{
mbc = sbc = bc;
mfc = sfc = fc;
}
switch( ModType & 0x0F)
{
case MOD_FLMUINT:
Num = FB2UD( ValuePtr);
break;
case MOD_FLMUINT16:
Num = FB2UW( ValuePtr);
break;
case MOD_FLMBYTE:
Num = *ValuePtr;
break;
case MOD_BH_ADDR:
Num = FB2UD( ValuePtr );/* & 0xFFFFFF00;*/ /* Could use GET_BH_ADDR() */
/* But pass in offset */
break;
}
if (!ViewAddMenuItem( iLabelIndex, LabelWidth,
ValueType, Num, 0,
FileNumber, FileOffset, 0, ModType,
Col, Row++, Option, mbc, mfc, sbc, sfc))
return( 0);
if ((ExpNum != IgnoreExpNum) && (Num != ExpNum))
{
if (!ViewAddMenuItem( LBL_EXPECTED, 0,
ValueType, ExpNum, 0,
0, VIEW_INVALID_FILE_OFFSET, 0, MOD_DISABLED,
Col + LabelWidth + 1, Row++, 0,
FLM_RED, FLM_LIGHTGRAY,
FLM_RED, FLM_LIGHTGRAY))
return( 0);
}
*RowRV = Row;
return( 1);
}
/***************************************************************************
Name: FormatBlkType
Desc: This routine formats a block's type into ASCII.
*****************************************************************************/
FSTATIC void FormatBlkType(
FLMBYTE * TempBuf,
FLMUINT BlkType
)
{
FLMBYTE TempBuf1 [30];
switch( BlkType)
{
case BHT_FREE:
f_strcpy( (char *)TempBuf, "Free");
break;
case BHT_LEAF:
f_strcpy( (char *)TempBuf, "Leaf");
break;
case BHT_NON_LEAF:
f_strcpy( (char *)TempBuf, "Non-Leaf 3x");
break;
case BHT_NON_LEAF_DATA:
f_strcpy( (char *)TempBuf, "Non-Leaf Data");
break;
case BHT_NON_LEAF_COUNTS:
f_strcpy( (char *)TempBuf, "Non-Leaf /w Counts");
break;
case BHT_LFH_BLK:
f_strcpy( (char *)TempBuf, "LFH");
break;
case BHT_PCODE_BLK:
f_strcpy( (char *)TempBuf, "PCODE");
break;
default:
f_sprintf( (char *)TempBuf1, "Unknown Type: %u", (unsigned)BlkType);
f_strcpy( (char *)TempBuf, (const char *)TempBuf1);
break;
}
}
/***************************************************************************
Name: ViewOutBlkHdr
Desc: This routine outputs a block's header.
*****************************************************************************/
FLMINT ViewOutBlkHdr(
FLMUINT Col,
FLMUINT * RowRV,
FLMBYTE * BlkPtr,
BLK_EXP_p BlkExp,
FLMBYTE * BlkStatus,
FLMUINT16 ui16CalcChkSum,
FLMUINT16 ui16BlkChkSum
)
{
FLMUINT LabelWidth = 35;
FLMUINT Row = *RowRV;
FLMBYTE TempBuf [80];
FLMUINT BlkAddress;
FLMUINT EndOfBlock;
FLMUINT BytesUsed;
FLMUINT PercentFull;
FLMUINT Option;
eColorType bc = FLM_BLACK;
eColorType fc = FLM_LIGHTGRAY;
eColorType mbc = FLM_BLACK;
eColorType mfc = FLM_WHITE;
eColorType sbc = FLM_BLUE;
eColorType sfc = FLM_WHITE;
FLMBYTE lfLFH [LFH_SIZE];
FLMBYTE lfName [80];
FLMUINT lfNum;
FLMUINT lfType;
FLMUINT TempFileOffset;
FLMBYTE bySaveChar;
/* Output the block Header address */
if (!OutBlkHdrExpNum( Col, &Row, FLM_RED, FLM_LIGHTGRAY,
FLM_RED, FLM_WHITE, sbc, sfc,
LabelWidth, LBL_BLOCK_ADDRESS_BLOCK_HEADER,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr), &BlkPtr [BH_ADDR],
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
MOD_BH_ADDR | MOD_HEX,
BlkExp->BlkAddr, 0, 0))
return( 0);
/* Adjust column so rest of header is indented */
Col += 2;
LabelWidth -= 2;
/* Output the previous block address */
if (FB2UD( &BlkPtr [BH_PREV_BLK]) == BT_END)
Option = 0;
else
Option = PREV_BLOCK_OPTION;
if (!OutBlkHdrExpNum( Col, &Row, bc, fc, mbc, mfc, sbc, sfc,
LabelWidth, LBL_PREVIOUS_BLOCK_ADDRESS,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_PREV_BLK,
&BlkPtr [BH_PREV_BLK],
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
MOD_FLMUINT | MOD_HEX,
BlkExp->PrevAddr, 0, Option))
return( 0);
/* Output the next block address */
if (FB2UD( &BlkPtr [BH_NEXT_BLK]) == BT_END)
Option = 0;
else
Option = NEXT_BLOCK_OPTION;
if (!OutBlkHdrExpNum( Col, &Row, bc, fc, mbc, mfc, sbc, sfc,
LabelWidth, LBL_NEXT_BLOCK_ADDRESS,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_NEXT_BLK,
&BlkPtr [BH_NEXT_BLK],
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
MOD_FLMUINT | MOD_HEX,
BlkExp->NextAddr, 0, Option))
return( 0);
/* Output the logical file this block belongs to - if any */
lfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
if (!ViewGetLFName( lfName, lfNum, lfLFH, &TempFileOffset))
{
lfType = LF_INVALID;
Option = 0;
}
else
{
lfType = lfLFH [LFH_TYPE_OFFSET];
Option = LOGICAL_FILE_OPTION | lfNum;
}
if ((BlkExp->LfNum != 0) && (lfNum != BlkExp->LfNum))
f_sprintf( (char *)TempBuf, "%s (Expected %u)", lfName, (unsigned)BlkExp->LfNum);
else
f_strcpy( (char *)TempBuf, (const char *)lfName);
if (!ViewAddMenuItem( LBL_BLOCK_LOGICAL_FILE_NAME, LabelWidth,
VAL_IS_TEXT_PTR,
(FLMUINT)((FLMBYTE *)(&TempBuf [0])), 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_LOG_FILE_NUM, 0,
MOD_FLMUINT | MOD_DECIMAL,
Col, Row++, Option,
!Option ? bc : mbc,
!Option ? fc : mfc,
!Option ? bc : sbc,
!Option ? fc : sfc))
return( 0);
/* Output the logical file type */
if (lfType != LF_INVALID)
{
FormatLFType( TempBuf, lfType);
if (!ViewAddMenuItem( LBL_BLOCK_LOGICAL_FILE_TYPE, LabelWidth,
VAL_IS_TEXT_PTR,
(FLMUINT)((FLMBYTE *)(&TempBuf [0])), 0,
0, VIEW_INVALID_FILE_OFFSET, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
}
/* Output the block type */
FormatBlkType( TempBuf, BH_GET_TYPE( BlkPtr));
if (BH_IS_ROOT_BLK( BlkPtr))
f_strcpy( (char *)&TempBuf [f_strlen( (const char *)TempBuf)], " (Root)");
if (BH_GET_TYPE( BlkPtr) != (FLMBYTE) BlkExp->Type)
{
f_strcpy( (char *)&TempBuf [f_strlen( (const char *)TempBuf)], ", Expecting ");
FormatBlkType( &TempBuf [f_strlen( (const char *)TempBuf)], BlkExp->Type);
}
if (!ViewAddMenuItem( LBL_BLOCK_TYPE, LabelWidth,
VAL_IS_TEXT_PTR,
(FLMUINT)((FLMBYTE *)(&TempBuf [0])), 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_TYPE, 0,
MOD_FLMBYTE | MOD_HEX,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the level in the B-TREE */
if (!OutBlkHdrExpNum( Col, &Row, bc, fc, mbc, mfc, sbc, sfc,
LabelWidth, LBL_B_TREE_LEVEL,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_LEVEL,
&BlkPtr [BH_LEVEL],
VAL_IS_NUMBER | DISP_DECIMAL,
MOD_FLMBYTE | MOD_DECIMAL,
(FLMUINT)BlkExp->Level, (FLMUINT)0xFF, 0))
return( 0);
/* Output the end of the block */
EndOfBlock = FB2UW( &BlkPtr [BH_BLK_END]);
if (!ViewAddMenuItem( LBL_BLOCK_END, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)EndOfBlock, 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_BLK_END, 0,
MOD_FLMUINT | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the percent full */
BytesUsed = EndOfBlock - BH_OVHD;
if ((!BytesUsed) || (EndOfBlock < BH_OVHD))
PercentFull = 0;
else if (EndOfBlock > gv_ViewHdrInfo.FileHdr.uiBlockSize)
PercentFull = 100;
else
PercentFull = ((FLMUINT)(BytesUsed) * (FLMUINT)(100)) /
(FLMUINT)(gv_ViewHdrInfo.FileHdr.uiBlockSize - BH_OVHD);
if (!ViewAddMenuItem( LBL_PERCENT_FULL, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)PercentFull, 0,
0, VIEW_INVALID_FILE_OFFSET, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the block transaction ID */
if (!ViewAddMenuItem( LBL_BLOCK_TRANS_ID, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
FB2UD( &BlkPtr [BH_TRANS_ID]), 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_TRANS_ID, 0,
MOD_FLMUINT | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the encryption flag */
if (!ViewAddMenuItem( LBL_BLOCK_ENCRYPTED, LabelWidth,
VAL_IS_LABEL_INDEX,
(BlkPtr [BH_ENCRYPTED])
? (FLMUINT)LBL_YES
: (FLMUINT)LBL_NO, 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_ENCRYPTED, 0,
MOD_DISABLED | MOD_FLMBYTE,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the old block image address */
BlkAddress = FB2UD( &BlkPtr [BH_PREV_BLK_ADDR]);
if ((BlkAddress == BT_END) || (BlkAddress == 0) ||
(FB2UD( &BlkPtr [BH_TRANS_ID]) <=
gv_ViewHdrInfo.LogHdr.uiCurrTransID))
Option = 0;
else
Option = PREV_BLOCK_IMAGE_OPTION;
if (!ViewAddMenuItem( LBL_OLD_BLOCK_IMAGE_ADDRESS, LabelWidth,
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
BlkAddress, 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_PREV_BLK_ADDR, 0,
MOD_FLMUINT | MOD_HEX,
Col, Row++, Option,
!Option ? bc : mbc,
!Option ? fc : mfc,
!Option ? bc : sbc,
!Option ? fc : sfc))
return( 0);
/* Output the old block image transaction ID */
if (!ViewAddMenuItem( LBL_OLD_BLOCK_IMAGE_TRANS_ID, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
FB2UD( &BlkPtr [BH_PREV_TRANS_ID]), 0,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_PREV_TRANS_ID, 0,
MOD_FLMUINT | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
/* Output the low byte of the block checksum */
bySaveChar = (FLMBYTE)(ui16BlkChkSum & 0x00FF);
if (!OutBlkHdrExpNum( Col, &Row, bc, fc, mbc, mfc, sbc, sfc,
LabelWidth, LBL_BLOCK_CHECKSUM_LOW,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_CHECKSUM_LOW,
&bySaveChar,
VAL_IS_NUMBER | DISP_DECIMAL,
MOD_FLMBYTE | MOD_DECIMAL,
(FLMUINT)((ui16BlkChkSum)
? (FLMUINT)(ui16CalcChkSum & 0x00FF)
: (FLMUINT)0), 0, 0))
{
BlkPtr [BH_CHECKSUM_LOW] = bySaveChar;
return( 0);
}
/* Output the high byte of the block checksum */
bySaveChar = (FLMBYTE)(ui16BlkChkSum >> 8);
if (!OutBlkHdrExpNum( Col, &Row, bc, fc, mbc, mfc, sbc, sfc,
LabelWidth, LBL_BLOCK_CHECKSUM_HIGH,
FSGetFileNumber( BlkExp->BlkAddr),
FSGetFileOffset( BlkExp->BlkAddr) + BH_CHECKSUM_HIGH,
&bySaveChar,
VAL_IS_NUMBER | DISP_DECIMAL,
MOD_FLMBYTE | MOD_DECIMAL,
(FLMUINT)((ui16BlkChkSum)
? (FLMUINT)(ui16CalcChkSum >> 8)
: (FLMUINT)0), 0, 0))
return( 0);
/* Output the flags which indicate the state of the block */
if (!OutputStatus( Col, &Row, bc, fc, LabelWidth, LBL_BLOCK_STATUS,
BlkStatus))
return( 0);
*RowRV = Row + 1;
return( 1);
}
/***************************************************************************
Name: ViewAvailBlk
Desc: This routine displays a block in the AVAIL list.
*****************************************************************************/
FLMINT ViewAvailBlk(
FLMUINT ReadAddress,
FLMUINT BlkAddress,
FLMBYTE ** BlkPtrRV,
BLK_EXP_p BlkExp
)
{
FLMINT iRc = 0;
FLMUINT Row;
FLMUINT Col;
FLMBYTE * BlkPtr;
FLMBYTE BlkStatus [NUM_STATUS_BYTES];
STATE_INFO StateInfo;
FLMBOOL bStateInitialized = FALSE;
BLOCK_INFO BlockInfo;
eCorruptionType eCorruptionCode;
FLMUINT16 ui16CalcChkSum;
FLMUINT16 ui16BlkChkSum;
FLMUINT uiBytesRead;
/* Read the block into memory */
if (!ViewBlkRead( ReadAddress, BlkPtrRV,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
&ui16CalcChkSum, &ui16BlkChkSum, &uiBytesRead, TRUE,
NULL, FALSE, NULL))
{
goto Exit;
}
BlkPtr = *BlkPtrRV;
if (!ViewMenuInit( "AVAIL Block"))
{
goto Exit;
}
/* Output the block header first */
Row = 0;
Col = 5;
BlkExp->Type = BHT_FREE;
BlkExp->LfNum = 0;
BlkExp->BlkAddr = BlkAddress;
BlkExp->Level = 0xFF;
/* Setup the STATE variable for processing through the block */
InitStatusBits( BlkStatus);
flmInitReadState( &StateInfo, &bStateInitialized,
gv_ViewHdrInfo.FileHdr.uiVersionNum,
(gv_bViewDbInitialized)
? (FDB *)gv_hViewDb
: (FDB *)NULL, NULL, 0, BHT_FREE, NULL);
StateInfo.uiBlkAddress = BlkAddress;
StateInfo.pBlk = BlkPtr;
if ((eCorruptionCode = flmVerifyBlockHeader( &StateInfo, &BlockInfo,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
BlkExp->NextAddr,
0, (FLMBOOL)(StateInfo.pDb != NULL
? TRUE
: FALSE), TRUE)) != FLM_NO_CORRUPTION)
SetStatusBit( BlkStatus, eCorruptionCode);
if (!ViewOutBlkHdr( Col, &Row, BlkPtr, BlkExp, BlkStatus,
ui16CalcChkSum, ui16BlkChkSum))
{
goto Exit;
}
iRc = 1;
Exit:
if (bStateInitialized && StateInfo.pRecord)
{
StateInfo.pRecord->Release();
StateInfo.pRecord = NULL;
}
return( iRc);
}
/***************************************************************************
Name: OutputHexValue
Desc: This routine outputs a stream of FLMBYTEs in hex format. This
routine is used to output key values and records within an
element.
*****************************************************************************/
FSTATIC FLMINT OutputHexValue(
FLMUINT Col,
FLMUINT * RowRV,
eColorType bc,
eColorType fc,
FLMINT iLabelIndex,
FLMUINT FileNumber,
FLMUINT FileOffset,
FLMBYTE * ValPtr,
FLMUINT ValLen,
FLMUINT CopyVal,
FLMUINT uiModFlag)
{
FLMUINT Row = *RowRV;
FLMUINT BytesPerLine = MAX_HORIZ_SIZE( Col + 3);
FLMUINT BytesProcessed = 0;
FLMUINT NumBytes;
if (!ValLen)
{
return( 1);
}
if (!ViewAddMenuItem( iLabelIndex, 0,
VAL_IS_EMPTY, 0, 0,
FileNumber, FileOffset, 0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
Col += 2;
while( BytesProcessed < ValLen)
{
if ((NumBytes = ValLen - BytesProcessed) > BytesPerLine)
NumBytes = BytesPerLine;
/* Output the line */
if (!ViewAddMenuItem( -1, 0,
(FLMBYTE)((CopyVal)
? (FLMBYTE)VAL_IS_BINARY
: (FLMBYTE)VAL_IS_BINARY_PTR),
(FLMUINT)ValPtr, NumBytes,
FileNumber, FileOffset, NumBytes, uiModFlag,
Col, Row++, 0, bc, fc, bc, fc))
return( 0);
FileOffset += (FLMUINT)NumBytes;
BytesProcessed += NumBytes;
ValPtr += NumBytes;
}
*RowRV = Row;
return( 1);
}
/***************************************************************************
Name: OutputLeafElements
Desc: This routine outputs the elements in a LEAF block.
*****************************************************************************/
FSTATIC FLMINT OutputLeafElements(
FLMUINT Col,
FLMUINT * RowRV,
FLMBYTE * BlkPtr,
BLK_EXP_p BlkExp,
FLMBYTE * BlkStatusRV,
FLMUINT StatusOnlyFlag,
FLMBOOL bEncrypted
)
{
FLMINT iRc = 0;
FLMUINT LabelWidth = 30;
eColorType bc = FLM_BLACK;
eColorType fc = FLM_LIGHTGRAY;
FLMUINT Row = *RowRV;
FLMUINT ElementCount = 0;
eCorruptionType eCorruptionCode;
FLMUINT LfType = LF_INVALID;
FLMBYTE ElmStatus [NUM_STATUS_BYTES];
STATE_INFO StateInfo;
FLMBOOL bStateInitialized = FALSE;
BLOCK_INFO BlockInfo;
FLMBYTE KeyBuffer [MAX_KEY_SIZ];
LFILE * pLFile = NULL;
LF_HDR LogicalFile;
LF_STATS LfStats;
LF_HDR * pLogicalFile = NULL;
if (BlkExp->LfNum == 0)
BlkExp->LfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
/* Setup the STATE variable for processing through the block */
ViewGetDictInfo();
if (gv_bViewHaveDictInfo)
{
if ((RC_OK( fdictGetIndex(
((FDB *)gv_hViewDb)->pDict,
((FDB *)gv_hViewDb)->pFile->bInLimitedMode,
BlkExp->LfNum, &pLFile, NULL))) ||
(RC_OK( fdictGetContainer(
((FDB *)gv_hViewDb)->pDict,
BlkExp->LfNum, &pLFile))))
{
f_memset( &LogicalFile, 0, sizeof( LF_HDR));
f_memset( &LfStats, 0, sizeof( LF_STATS));
pLogicalFile = &LogicalFile;
pLogicalFile->pLfStats = &LfStats;
LogicalFile.pLFile = pLFile;
if (pLFile->uiLfType == LF_INDEX)
{
if (RC_BAD( fdictGetIndex(
((FDB *)gv_hViewDb)->pDict,
((FDB *)gv_hViewDb)->pFile->bInLimitedMode,
pLFile->uiLfNum, &LogicalFile.pLFile,
&LogicalFile.pIxd)))
{
pLogicalFile = NULL;
}
LogicalFile.pIfd = LogicalFile.pIxd->pFirstIfd;
}
}
}
LfType = (pLogicalFile) ? pLogicalFile->pLFile->uiLfType : LF_INVALID;
flmInitReadState( &StateInfo, &bStateInitialized,
gv_ViewHdrInfo.FileHdr.uiVersionNum,
(gv_bViewDbInitialized)
? (FDB *)gv_hViewDb
: (FDB *)NULL, pLogicalFile, 0,
BHT_LEAF, KeyBuffer);
StateInfo.uiBlkAddress = BlkExp->BlkAddr;
StateInfo.pBlk = BlkPtr;
if ((eCorruptionCode = flmVerifyBlockHeader( &StateInfo, &BlockInfo,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
BlkExp->NextAddr,
BlkExp->PrevAddr,
(FLMBOOL)(StateInfo.pDb != NULL
? TRUE
: FALSE), TRUE)) != FLM_NO_CORRUPTION)
SetStatusBit( BlkStatusRV, eCorruptionCode);
if (bEncrypted)
{
if (!StatusOnlyFlag)
{
FLMUINT uiEncSize = getEncryptSize( StateInfo.pBlk) - BH_OVHD;
if (uiEncSize)
{
// Output the rest of the block as HEX - cannot be parsed through
// when it is encrypted
OutputHexValue( Col, &Row, bc, fc, LBL_ENC_DATA,
FSGetFileNumber(StateInfo.uiBlkAddress),
FSGetFileOffset(StateInfo.uiBlkAddress) + BH_OVHD,
&StateInfo.pBlk [BH_OVHD], uiEncSize, FALSE, MOD_BINARY_ENC);
}
}
iRc = 1;
goto Exit;
}
/* Read through the elements in the block */
while( StateInfo.uiElmOffset < StateInfo.uiEndOfBlock)
{
ElementCount++;
InitStatusBits( ElmStatus);
if ((eCorruptionCode = flmVerifyElement( &StateInfo, FLM_CHK_FIELDS)) != FLM_NO_CORRUPTION)
SetStatusBit( ElmStatus, eCorruptionCode);
else if (LfType == LF_INDEX)
{
if (StateInfo.uiCurKeyLen)
{
if( RC_BAD( flmVerifyIXRefs( &StateInfo, NULL, 0,
&eCorruptionCode)) || eCorruptionCode != FLM_NO_CORRUPTION)
{
SetStatusBit( ElmStatus, eCorruptionCode);
}
}
}
/* Output the element */
if (!StatusOnlyFlag)
{
Row++;
/* Output the element number */
if (!ViewAddMenuItem( LBL_ELEMENT_NUMBER, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)ElementCount, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) + StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0,
FLM_GREEN, FLM_WHITE,
FLM_GREEN, FLM_WHITE))
goto Exit;
/* Remember this item if we are searching */
if ((gv_bViewSearching) &&
(flmCompareKeys( StateInfo.pCurKey, StateInfo.uiCurKeyLen,
gv_ucViewSearchKey,
gv_uiViewSearchKeyLen) >= 0) &&
(gv_pViewSearchItem == NULL))
{
gv_pViewSearchItem = gv_pViewMenuLastItem;
}
/* Output the element offset within the block */
if (!ViewAddMenuItem( LBL_ELEMENT_OFFSET, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmOffset, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Output the element length */
if (!ViewAddMenuItem( LBL_ELEMENT_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Display the first element flag */
if (!ViewAddMenuItem( LBL_FIRST_ELEMENT_FLAG, LabelWidth,
VAL_IS_LABEL_INDEX,
(BBE_IS_FIRST( StateInfo.pElm))
? (FLMUINT)LBL_YES
: (FLMUINT)LBL_NO, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) + StateInfo.uiElmOffset,
0x80, MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Display the last element flag */
if (!ViewAddMenuItem( LBL_LAST_ELEMENT_FLAG, LabelWidth,
VAL_IS_LABEL_INDEX,
(BBE_IS_LAST( StateInfo.pElm))
? (FLMUINT)LBL_YES
: (FLMUINT)LBL_NO, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset, 0x40,
MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
if (eCorruptionCode != FLM_NO_CORRUPTION)
{
if ((LfType != LF_INDEX) &&
(LfType != LF_INVALID) &&
(StateInfo.uiCurKeyLen) &&
(StateInfo.uiElmDrn != DRN_LAST_MARKER))
{
FLMUINT r = 0;
STATE_INFO DummyState;
FLMBYTE TempKeyBuffer [MAX_KEY_SIZ];
f_memcpy( &DummyState, &StateInfo, sizeof( STATE_INFO));
f_memcpy( TempKeyBuffer, KeyBuffer, MAX_KEY_SIZ);
DummyState.pCurKey = &TempKeyBuffer [0];
if (!OutputElmRecord( Col, &r, bc, fc, LabelWidth,
&DummyState, ElmStatus, TRUE))
goto Exit;
}
if (!OutputStatus( Col, &Row, bc, fc, LabelWidth,
LBL_ELEMENT_STATUS, ElmStatus))
goto Exit;
}
/* Display the Previous Key Count */
if (!ViewAddMenuItem( LBL_PREVIOUS_KEY_CONT_LEN, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmPKCLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) + StateInfo.uiElmOffset,
0x0F, MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Output the previous key portion, if any */
if (!OutputHexValue( Col, &Row, bc, fc,
LBL_PREV_ELEMENT_KEY,
0, VIEW_INVALID_FILE_OFFSET,
StateInfo.pCurKey, StateInfo.uiElmPKCLen,
TRUE, MOD_BINARY))
goto Exit;
/* Display the key length */
if (!ViewAddMenuItem( LBL_KEY_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmKeyLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset, 0,
MOD_KEY_LEN | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Output the current key portion, if any */
if (!OutputHexValue( Col, &Row, bc, fc, LBL_ELEMENT_KEY,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset + BBE_KEY,
StateInfo.pElmKey, StateInfo.uiElmKeyLen,
FALSE, MOD_BINARY))
goto Exit;
if ((LfType != LF_INDEX) && (LfType != LF_INVALID))
{
if (StateInfo.uiElmDrn != DRN_LAST_MARKER)
{
if (!ViewAddMenuItem( LBL_ELEMENT_DRN, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL_HEX,
StateInfo.uiElmDrn, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset + BBE_KEY,
StateInfo.uiElmKeyLen,
MOD_DISABLED | MOD_BINARY,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
}
/* Display the Next DRN marker if there is one */
if (StateInfo.uiElmDrn == DRN_LAST_MARKER)
{
if (!ViewAddMenuItem( LBL_NEXT_DRN_MARKER, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL_HEX,
StateInfo.uiLastElmDrn, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset + BBE_KEY+4,
StateInfo.uiElmKeyLen,
MOD_DISABLED | MOD_BINARY,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
}
}
/* Display the record length */
if (!ViewAddMenuItem( LBL_RECORD_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmRecLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset + BBE_RL,
0,
MOD_FLMBYTE | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
if ((LfType == LF_INDEX) || (LfType == LF_INVALID))
{
/* Output the record portion */
if (!OutputHexValue( Col, &Row, bc, fc, LBL_RECORD,
FSGetFileNumber(StateInfo.uiBlkAddress),
FSGetFileOffset(StateInfo.uiBlkAddress) +
(FLMUINT)(StateInfo.pElmRec - StateInfo.pBlk),
StateInfo.pElmRec, StateInfo.uiElmRecLen,
FALSE, MOD_BINARY))
goto Exit;
}
}
if ((LfType != LF_INDEX) &&
(LfType != LF_INVALID) &&
(StateInfo.uiCurKeyLen) &&
( StateInfo.uiElmDrn != DRN_LAST_MARKER))
{
if (!OutputElmRecord( Col, &Row, bc, fc, LabelWidth,
&StateInfo, ElmStatus, StatusOnlyFlag))
goto Exit;
}
/* Go to the next element */
StateInfo.uiElmOffset += StateInfo.uiElmLen;
OrStatusBits( BlkStatusRV, ElmStatus);
}
/* Verify that we ended exactly on the end of the block */
if ((!TestStatusBit( BlkStatusRV, FLM_BAD_BLK_HDR_BLK_END)) &&
(StateInfo.uiElmOffset > StateInfo.uiEndOfBlock))
SetStatusBit( BlkStatusRV, FLM_BAD_ELM_END);
if (!StatusOnlyFlag)
{
*RowRV = Row;
/* If we were searching and did not find a key, set it on the */
/* last key found */
if ((gv_bViewSearching) && (gv_pViewSearchItem == NULL))
{
gv_pViewSearchItem = gv_pViewMenuLastItem;
while ((gv_pViewSearchItem != NULL) &&
(gv_pViewSearchItem->iLabelIndex != LBL_ELEMENT_NUMBER))
gv_pViewSearchItem = gv_pViewSearchItem->PrevItem;
}
}
iRc = 1;
Exit:
if (bStateInitialized && StateInfo.pRecord)
{
StateInfo.pRecord->Release();
StateInfo.pRecord = NULL;
}
return( iRc);
}
/***************************************************************************
Name: ViewLeafBlk
Desc: This routine outputs a LEAF block, including the block header.
*****************************************************************************/
FLMINT ViewLeafBlk(
FLMUINT ReadAddress,
FLMUINT BlkAddress,
FLMBYTE ** BlkPtrRV,
BLK_EXP_p BlkExp
)
{
FLMUINT Row;
FLMUINT Col;
FLMBYTE * BlkPtr;
FLMBYTE BlkStatus [NUM_STATUS_BYTES];
FLMUINT16 ui16CalcChkSum;
FLMUINT16 ui16BlkChkSum;
FLMUINT uiBytesRead;
FLMBOOL bEncrypted;
InitStatusBits( BlkStatus);
/* Read the block into memory */
if (!ViewBlkRead( ReadAddress, BlkPtrRV,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
&ui16CalcChkSum, &ui16BlkChkSum,
&uiBytesRead, TRUE, NULL, TRUE, &bEncrypted))
return( 0);
BlkPtr = *BlkPtrRV;
if (!ViewMenuInit( "LEAF Block"))
return( 0);
/* Output the block header first */
Row = 0;
Col = 5;
BlkExp->Type = BHT_LEAF;
BlkExp->BlkAddr = BlkAddress;
BlkExp->Level = 0;
OutputLeafElements( Col, &Row, BlkPtr, BlkExp, BlkStatus, TRUE,
bEncrypted);
if (!ViewOutBlkHdr( Col, &Row, BlkPtr, BlkExp, BlkStatus,
ui16CalcChkSum, ui16BlkChkSum))
return( 0);
/* Now output the leaf data */
if (!OutputLeafElements( Col, &Row, BlkPtr, BlkExp,
BlkStatus, FALSE, bEncrypted))
return( 0);
return( 1);
}
/***************************************************************************
Name: OutputNonLeafElements
Desc: This routine outputs the elements of a NON-LEAF block.
*****************************************************************************/
FSTATIC FLMINT OutputNonLeafElements(
FLMUINT Col,
FLMUINT * RowRV,
FLMBYTE * BlkPtr,
BLK_EXP_p BlkExp,
FLMBYTE * BlkStatusRV,
FLMUINT StatusOnlyFlag,
FLMBOOL bEncrypted
)
{
FLMINT iRc = 0;
FLMUINT LabelWidth = 30;
eColorType bc = FLM_BLACK;
eColorType fc = FLM_LIGHTGRAY;
eColorType mbc = FLM_BLACK;
eColorType mfc = FLM_WHITE;
eColorType sbc = FLM_BLUE;
eColorType sfc = FLM_WHITE;
FLMUINT Row = *RowRV;
FLMUINT ElementCount = 0;
FLMBYTE * TempAddrPtr;
FLMUINT TempAddress;
eCorruptionType eCorruptionCode;
FLMUINT Option;
FLMUINT LfType;
FLMUINT uiBlkType = BlkExp->Type;
FLMBYTE ElmStatus [NUM_STATUS_BYTES];
STATE_INFO StateInfo;
FLMBOOL bStateInitialized = FALSE;
BLOCK_INFO BlockInfo;
FLMBYTE KeyBuffer [MAX_KEY_SIZ];
LF_HDR LogicalFile;
LF_HDR * pLogicalFile = NULL;
LFILE * pLFile = NULL;
FLMUINT uiFixedDrn = 0;
if (BlkExp->LfNum == 0)
BlkExp->LfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
/* Setup the STATE variable for processing through the block */
ViewGetDictInfo();
if (gv_bViewHaveDictInfo)
{
if ((RC_OK( fdictGetIndex(
((FDB *)gv_hViewDb)->pDict,
((FDB *)gv_hViewDb)->pFile->bInLimitedMode,
BlkExp->LfNum, &pLFile, NULL))) ||
(RC_OK( fdictGetContainer(
((FDB *)gv_hViewDb)->pDict,
BlkExp->LfNum, &pLFile))))
{
f_memset( &LogicalFile, 0, sizeof( LF_HDR));
pLogicalFile = &LogicalFile;
LogicalFile.pLFile = pLFile;
if (pLFile->uiLfType == LF_INDEX)
{
if (RC_BAD( fdictGetIndex(
((FDB *)gv_hViewDb)->pDict,
((FDB *)gv_hViewDb)->pFile->bInLimitedMode,
pLFile->uiLfNum, &LogicalFile.pLFile,
&LogicalFile.pIxd)))
{
pLogicalFile = NULL;
}
LogicalFile.pIfd = LogicalFile.pIxd->pFirstIfd;
}
}
}
LfType = (pLogicalFile) ? pLogicalFile->pLFile->uiLfType : LF_INVALID;
if (uiBlkType != BHT_NON_LEAF &&
uiBlkType != BHT_NON_LEAF_COUNTS &&
uiBlkType != BHT_NON_LEAF_DATA)
{
if (pLogicalFile)
{
if (LfType == LF_INDEX)
{
if (pLogicalFile->pIxd &&
(pLogicalFile->pIxd->uiFlags & IXD_POSITIONING))
{
uiBlkType = BHT_NON_LEAF_COUNTS;
}
else
{
uiBlkType = BHT_NON_LEAF;
}
}
else
{
uiBlkType = BHT_NON_LEAF_DATA;
}
}
else
{
uiBlkType = BHT_NON_LEAF;
}
}
flmInitReadState( &StateInfo, &bStateInitialized,
gv_ViewHdrInfo.FileHdr.uiVersionNum,
(gv_bViewDbInitialized)
? (FDB *)gv_hViewDb
: (FDB *)NULL, pLogicalFile, BlkExp->Level,
uiBlkType, KeyBuffer);
StateInfo.uiBlkAddress = BlkExp->BlkAddr;
StateInfo.pBlk = BlkPtr;
if ((eCorruptionCode = flmVerifyBlockHeader( &StateInfo, &BlockInfo,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
BlkExp->NextAddr,
BlkExp->PrevAddr,
(FLMBOOL)(StateInfo.pDb != NULL
? TRUE
: FALSE), TRUE)) != FLM_NO_CORRUPTION)
SetStatusBit( BlkStatusRV, eCorruptionCode);
if (bEncrypted)
{
if (!StatusOnlyFlag)
{
FLMUINT uiEncSize = getEncryptSize( StateInfo.pBlk) - BH_OVHD;
if (uiEncSize)
{
// Output the rest of the block as HEX - cannot be parsed through
// when it is encrypted
OutputHexValue( Col, &Row, bc, fc, LBL_ENC_DATA,
FSGetFileNumber(StateInfo.uiBlkAddress),
FSGetFileOffset(StateInfo.uiBlkAddress) + BH_OVHD,
&StateInfo.pBlk [BH_OVHD], uiEncSize, FALSE, MOD_BINARY_ENC);
}
}
iRc = 1;
goto Exit;
}
/* Output each element in the block */
while (StateInfo.uiElmOffset < StateInfo.uiEndOfBlock)
{
InitStatusBits( ElmStatus);
ElementCount++;
if ((eCorruptionCode = flmVerifyElement( &StateInfo, FLM_CHK_FIELDS)) != FLM_NO_CORRUPTION)
SetStatusBit( ElmStatus, eCorruptionCode);
if (!StatusOnlyFlag)
{
Row++;
/* Output the element number */
if (!ViewAddMenuItem( LBL_ELEMENT_NUMBER, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)ElementCount, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0,
FLM_GREEN, FLM_WHITE,
FLM_GREEN, FLM_WHITE))
goto Exit;
/* Output the element offset within the block */
if (!ViewAddMenuItem( LBL_ELEMENT_OFFSET, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmOffset, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Output the element length */
if (!ViewAddMenuItem( LBL_ELEMENT_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0, MOD_DISABLED,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Display the domain flag */
if (!ViewAddMenuItem( LBL_DOMAIN_PRESENT_FLAG, LabelWidth,
VAL_IS_LABEL_INDEX,
(BNE_IS_DOMAIN( StateInfo.pElm))
? (FLMUINT)LBL_YES
: (FLMUINT)LBL_NO, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset,
0x80, MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Display the domain number */
if (uiBlkType != BHT_NON_LEAF_DATA && (BNE_IS_DOMAIN( StateInfo.pElm)))
{
TempAddrPtr = &StateInfo.pElmKey [StateInfo.uiElmKeyLen];
TempAddress = ((FLMUINT) (*TempAddrPtr++)) << 16;
TempAddress |= (FLMUINT) ((*TempAddrPtr++) << 8);
TempAddress |= (FLMUINT) (*TempAddrPtr);
TempAddress <<= 8;
}
else
TempAddress = 0;
if (!ViewAddMenuItem( LBL_DOMAIN_NUMBER, LabelWidth,
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
(FLMUINT)TempAddress, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
((FLMUINT)(StateInfo.pElmKey - StateInfo.pBlk) +
StateInfo.uiElmKeyLen),
0,
(FLMBYTE)((TempAddress)
? (FLMBYTE)MOD_CHILD_BLK
: (FLMBYTE)MOD_DISABLED),
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Display the child block address */
if (uiBlkType == BHT_NON_LEAF_DATA)
{
uiFixedDrn = f_bigEndianToUINT32( StateInfo.pElm);
TempAddrPtr = &StateInfo.pElm [BNE_DATA_CHILD_BLOCK];
}
else
{
TempAddrPtr = &StateInfo.pElm [BNE_CHILD_BLOCK];
}
TempAddress = FB2UD( TempAddrPtr);
if (TempAddress == BT_END)
Option = 0;
else
Option = BLK_OPTION_CHILD_BLOCK | StateInfo.uiElmOffset;
if (!ViewAddMenuItem( LBL_CHILD_BLOCK_ADDRESS, LabelWidth,
VAL_IS_NUMBER | DISP_HEX_DECIMAL,
(FLMUINT)TempAddress, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset +
(FLMUINT) (TempAddrPtr - StateInfo.pElm),
0, MOD_CHILD_BLK,
Col, Row++, Option,
!Option ? bc : mbc,
!Option ? fc : mfc,
!Option ? bc : sbc,
!Option ? fc : sfc))
goto Exit;
if (uiBlkType == BHT_NON_LEAF_COUNTS)
{
TempAddrPtr = &StateInfo.pElm [BNE_CHILD_COUNT];
if (!ViewAddMenuItem( LBL_CHILD_REFERENCE_COUNT, LabelWidth,
VAL_IS_NUMBER,
(FLMUINT) StateInfo.uiChildCount, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset +
(FLMUINT) (TempAddrPtr - StateInfo.pElm),
0, MOD_FLMUINT | MOD_DECIMAL,
Col, Row++, Option, bc, fc, bc, fc))
goto Exit;
}
/* Remember this item if we are searching */
if ((gv_bViewSearching) &&
(flmCompareKeys( StateInfo.pCurKey, StateInfo.uiCurKeyLen,
gv_ucViewSearchKey, gv_uiViewSearchKeyLen) >= 0) &&
(gv_pViewSearchItem == NULL))
{
gv_pViewSearchItem = gv_pViewMenuLastItem;
}
if (eCorruptionCode != FLM_NO_CORRUPTION)
{
if (!OutputStatus( Col, &Row, bc, fc, LabelWidth, LBL_ELEMENT_STATUS,
ElmStatus))
goto Exit;
}
/* Display the Previous Key Count */
if (!ViewAddMenuItem( LBL_PREVIOUS_KEY_CONT_LEN, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmPKCLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset, 0x0F,
MOD_BITS | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
if (uiBlkType != BHT_NON_LEAF_DATA)
{
/* Output the previous key portion, if any */
if (!OutputHexValue( Col, &Row, bc, fc,
LBL_PREV_ELEMENT_KEY,
0, VIEW_INVALID_FILE_OFFSET,
StateInfo.pCurKey, StateInfo.uiElmPKCLen,
TRUE, MOD_BINARY))
goto Exit;
/* Display the key length */
if (!ViewAddMenuItem( LBL_KEY_LENGTH, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL,
(FLMUINT)StateInfo.uiElmKeyLen, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
StateInfo.uiElmOffset, 0,
MOD_KEY_LEN | MOD_DECIMAL,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
/* Output the current key portion, if any */
if (!OutputHexValue( Col, &Row, bc, fc, LBL_ELEMENT_KEY,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
(FLMUINT)(StateInfo.pElmKey - StateInfo.pBlk),
StateInfo.pElmKey, StateInfo.uiElmKeyLen,
FALSE, MOD_BINARY))
goto Exit;
}
if (((LfType != LF_INDEX) && (LfType != LF_INVALID)) ||
(uiBlkType == BHT_NON_LEAF_DATA))
{
FLMUINT uiDrn = StateInfo.uiElmDrn;
if (uiBlkType == BHT_NON_LEAF_DATA)
{
uiDrn = uiFixedDrn;
}
if (!ViewAddMenuItem( LBL_ELEMENT_DRN, LabelWidth,
VAL_IS_NUMBER | DISP_DECIMAL_HEX,
uiFixedDrn, 0,
FSGetFileNumber( StateInfo.uiBlkAddress),
FSGetFileOffset( StateInfo.uiBlkAddress) +
(FLMUINT)(StateInfo.pElmKey - StateInfo.pBlk),
StateInfo.uiElmKeyLen,
MOD_DISABLED | MOD_BINARY,
Col, Row++, 0, bc, fc, bc, fc))
goto Exit;
}
}
/* Go to the next element */
StateInfo.uiElmOffset += StateInfo.uiElmLen;
OrStatusBits( BlkStatusRV, ElmStatus);
}
/* Verify that we ended exactly on the end of the block */
if ((!TestStatusBit( BlkStatusRV, FLM_BAD_BLK_HDR_BLK_END)) &&
(StateInfo.uiElmOffset > StateInfo.uiEndOfBlock))
SetStatusBit( BlkStatusRV, FLM_BAD_ELM_END);
if (!StatusOnlyFlag)
{
*RowRV = Row;
/* If we were searching and did not find a key, set it on the */
/* last key found */
if ((gv_bViewSearching) && (gv_pViewSearchItem == NULL))
{
gv_pViewSearchItem = gv_pViewMenuLastItem;
while ((gv_pViewSearchItem != NULL) &&
(gv_pViewSearchItem->iLabelIndex != LBL_CHILD_BLOCK_ADDRESS))
gv_pViewSearchItem = gv_pViewSearchItem->PrevItem;
}
}
iRc = 1;
Exit:
if (bStateInitialized && StateInfo.pRecord)
{
StateInfo.pRecord->Release();
StateInfo.pRecord = NULL;
}
return( iRc);
}
/***************************************************************************
Name: ViewNonLeafBlk
Desc: This routine outputs a NON-LEAF block, including the block header.
*****************************************************************************/
FLMINT ViewNonLeafBlk(
FLMUINT ReadAddress,
FLMUINT BlkAddress,
FLMBYTE ** BlkPtrRV,
BLK_EXP_p BlkExp
)
{
FLMUINT Row;
FLMUINT Col;
FLMBYTE * BlkPtr;
FLMBYTE BlkStatus [NUM_STATUS_BYTES];
FLMUINT16 ui16CalcChkSum;
FLMUINT16 ui16BlkChkSum;
FLMUINT uiBytesRead;
FLMBOOL bEncrypted;
InitStatusBits( BlkStatus);
/* Read the block into memory */
if (!ViewBlkRead( ReadAddress, BlkPtrRV,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
&ui16CalcChkSum, &ui16BlkChkSum,
&uiBytesRead, TRUE, NULL, TRUE, &bEncrypted))
return( 0);
BlkPtr = *BlkPtrRV;
if (!ViewMenuInit( "NON-LEAF Block"))
return( 0);
/* Output the block header first */
Row = 0;
Col = 5;
BlkExp->Type = BH_GET_TYPE( BlkPtr);
BlkExp->BlkAddr = BlkAddress;
OutputNonLeafElements( Col, &Row, BlkPtr, BlkExp, BlkStatus, TRUE,
bEncrypted);
if (!ViewOutBlkHdr( Col, &Row, BlkPtr, BlkExp, BlkStatus,
ui16CalcChkSum, ui16BlkChkSum))
return( 0);
/* Now output the non-leaf data */
if (!OutputNonLeafElements( Col, &Row, BlkPtr, BlkExp, BlkStatus, FALSE,
bEncrypted))
return( 0);
return( 1);
}
/********************************************************************
Desc: ?
*********************************************************************/
void ViewHexBlock(
FLMUINT ReadAddress,
FLMBYTE ** BlkPtrRV,
FLMBOOL bViewDecrypted,
FLMUINT uiViewLen
)
{
FLMBYTE * BlkPtr;
FLMUINT Row = 0;
FLMUINT Col = 9;
FLMUINT BytesPerLine = MAX_HORIZ_SIZE( Col);
FLMUINT BytesProcessed = 0;
FLMUINT NumBytes;
FLMUINT FileOffset;
FLMUINT FileNumber;
char Title [80];
FLMUINT16 ui16CalcChkSum;
FLMUINT16 ui16BlkChkSum;
FLMUINT uiBytesRead;
FLMBOOL bIsEncBlock;
FLMBOOL bEncrypted;
FLMUINT uiModFlag;
FileOffset = FSGetFileOffset( ReadAddress);
FileNumber = FSGetFileNumber( ReadAddress);
if (!ViewBlkRead( ReadAddress, BlkPtrRV, uiViewLen,
&ui16CalcChkSum, &ui16BlkChkSum,
&uiBytesRead, TRUE, &bIsEncBlock,
bViewDecrypted, &bEncrypted))
return;
BlkPtr = *BlkPtrRV;
f_sprintf( (char *)Title, "HEX DISPLAY OF BLOCK %08X (%s)", (unsigned)ReadAddress,
(char *)(bIsEncBlock
? (char *)(bEncrypted
? (char *)"DECRYPTED"
: (char *)"ENCRYPTED (RAW)")
: (char *)"RAW"));
if (!ViewMenuInit( Title))
return;
uiModFlag = bEncrypted ? MOD_BINARY_ENC : MOD_BINARY;
while (BytesProcessed < uiViewLen)
{
if ((NumBytes = uiViewLen - BytesProcessed) > BytesPerLine)
NumBytes = BytesPerLine;
/* Output the line */
if (!ViewAddMenuItem( -1, 0,
VAL_IS_BINARY_HEX,
(FLMUINT)BlkPtr, NumBytes,
FileNumber, FileOffset, NumBytes, uiModFlag,
Col, Row++, 0,
FLM_BLACK, FLM_LIGHTGRAY,
FLM_BLACK, FLM_LIGHTGRAY))
return;
FileOffset += (FLMUINT)NumBytes;
BytesProcessed += NumBytes;
BlkPtr += NumBytes;
}
}
/***************************************************************************
Name: ViewBlocks
Desc: This routine outputs a block in the database. Depending on the
type of block, it will call a different routine to display
the block. The routine then allows the user to press keys to
navigate to other blocks in the database if desired.
*****************************************************************************/
void ViewBlocks(
FLMUINT ReadAddress,
FLMUINT BlkAddress,
BLK_EXP_p BlkExp
)
{
FLMUINT Option;
VIEW_INFO SaveView;
VIEW_INFO DummySave;
FLMUINT Done = 0;
FLMUINT Repaint = 1;
FLMBYTE * BlkPtr = NULL;
FLMUINT BlkAddress2;
BLK_EXP BlkExp2;
FLMUINT SetExp = FALSE;
FLMUINT Type;
FLMBOOL bViewHex = FALSE;
FLMBOOL bViewDecrypted = FALSE;
FLMUINT uiBytesRead;
/* Loop getting commands until hit the exit key */
if (!gv_bViewHdrRead)
ViewReadHdr();
gv_pViewSearchItem = NULL;
ViewReset( &SaveView);
while ((!Done) && (!gv_bViewPoppingStack))
{
/* Display the type of block expected */
if (Repaint)
{
if (bViewHex)
{
ViewHexBlock( ReadAddress, &BlkPtr, bViewDecrypted,
gv_ViewHdrInfo.FileHdr.uiBlockSize);
}
else
{
Switch_Statement:
switch( BlkExp->Type)
{
case BHT_NON_LEAF_COUNTS:
case BHT_NON_LEAF:
case BHT_NON_LEAF_DATA:
if (!ViewNonLeafBlk( ReadAddress, BlkAddress,
&BlkPtr, BlkExp))
Done = 1;
break;
case BHT_LEAF:
if (!ViewLeafBlk( ReadAddress, BlkAddress,
&BlkPtr, BlkExp))
Done = 1;
break;
case BHT_FREE:
if (!ViewAvailBlk( ReadAddress, BlkAddress,
&BlkPtr, BlkExp))
Done = 1;
break;
case BHT_LFH_BLK:
if (!ViewLFHBlk( ReadAddress, BlkAddress,
&BlkPtr, BlkExp))
Done = 1;
break;
case 0xFF:
if (!ViewBlkRead( ReadAddress, &BlkPtr,
gv_ViewHdrInfo.FileHdr.uiBlockSize,
NULL, NULL, &uiBytesRead, FALSE,
NULL, FALSE, NULL))
{
Done = 1;
}
else
{
BlkExp->Type = BH_GET_TYPE( BlkPtr );
goto Switch_Statement;
}
break;
}
}
}
/* See what the user wants to do next. */
if (!Done)
{
if ((SetExp) &&
((BlkExp->Type == BHT_LEAF) ||
(BlkExp->Type == BHT_NON_LEAF_COUNTS) ||
(BlkExp->Type == BHT_NON_LEAF) ||
(BlkExp->Type == BHT_NON_LEAF_DATA) ))
{
BlkExp->LfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
BlkExp->Level = BlkPtr [BH_LEVEL];
}
SetExp = FALSE;
Repaint = 1;
if (gv_bViewSearching)
{
SetSearchTopBottom();
if ((BlkExp->Type == BHT_LEAF) || (gv_pViewSearchItem == NULL))
{
gv_bViewSearching = FALSE;
ViewEnable();
Option = ViewGetMenuOption();
}
else
Option = gv_pViewSearchItem->Option;
}
else
{
ViewEnable();
Option = ViewGetMenuOption();
}
switch( Option)
{
case ESCAPE_OPTION:
Done = 1;
break;
case PREV_BLOCK_OPTION:
ViewReset( &DummySave);
BlkExp->NextAddr = BlkAddress;
BlkExp->PrevAddr = 0;
ReadAddress = BlkAddress = FB2UD( &BlkPtr [BH_PREV_BLK]);
break;
case NEXT_BLOCK_OPTION:
ViewReset( &DummySave);
BlkExp->NextAddr = 0;
BlkExp->PrevAddr = BlkAddress;
ReadAddress = BlkAddress = FB2UD( &BlkPtr [BH_NEXT_BLK]);
break;
case PREV_BLOCK_IMAGE_OPTION:
if (BlkExp->Type == BHT_PCODE_BLK)
{
ViewShowError(
"This option not supported for PCODE blocks");
Repaint = 0;
}
else
{
f_memcpy( &BlkExp2, BlkExp, sizeof( BLK_EXP));
BlkExp2.NextAddr = 0;
BlkExp2.PrevAddr = 0;
ViewBlocks( FB2UD( &BlkPtr [BH_PREV_BLK_ADDR]),
BlkAddress, &BlkExp2);
}
break;
case GOTO_BLOCK_OPTION:
if (GetBlockAddrType( &BlkAddress2, &Type))
{
ViewReset( &DummySave);
ReadAddress = BlkAddress = BlkAddress2;
BlkExp->Type = Type;
BlkExp->Level = 0xFF;
BlkExp->NextAddr = 0;
BlkExp->PrevAddr = 0;
BlkExp->LfNum = 0;
SetExp = TRUE;
if (BlkAddress < 2048)
{
bViewDecrypted = FALSE;
bViewHex = TRUE;
}
}
else
Repaint = 0;
break;
case EDIT_OPTION:
case EDIT_RAW_OPTION:
if (!ViewEdit( TRUE,
(Option == EDIT_OPTION) ? TRUE : FALSE))
Repaint = 0;
break;
case HEX_OPTION:
ViewDisable();
bViewHex = bViewHex ? FALSE : TRUE;
if (!bViewHex)
{
bViewDecrypted = FALSE;
}
break;
case DECRYPT_OPTION:
if (bViewHex)
{
ViewDisable();
bViewDecrypted = bViewDecrypted ? FALSE : TRUE;
}
else
{
Repaint = 0;
}
break;
case SEARCH_OPTION:
switch( BH_GET_TYPE( BlkPtr))
{
case BHT_NON_LEAF_COUNTS:
case BHT_NON_LEAF:
case BHT_NON_LEAF_DATA:
case BHT_LEAF:
gv_uiViewSearchLfNum = FB2UW( &BlkPtr [BH_LOG_FILE_NUM]);
if (ViewGetKey())
gv_bViewPoppingStack = TRUE;
break;
case BHT_LFH_BLK:
{
VIEW_MENU_ITEM_p vp = gv_pViewMenuCurrItem;
/* Determine which logical file, if any we are pointing at */
while ((vp != NULL) &&
(vp->iLabelIndex != LBL_LOGICAL_FILE_NAME))
vp = vp->PrevItem;
if (vp != NULL)
{
while ((vp != NULL) &&
(vp->iLabelIndex != LBL_LOGICAL_FILE_NUMBER))
vp = vp->NextItem;
}
if (vp != NULL)
{
gv_uiViewSearchLfNum = (FLMUINT)vp->Value;
if (ViewGetKey())
gv_bViewPoppingStack = TRUE;
}
else
ViewShowError(
"Position cursor to a logical file before searching");
}
break;
case BHT_PCODE_BLK:
{
VIEW_MENU_ITEM_p vp = gv_pViewMenuCurrItem;
/* Determine which logical file, if any we are pointing at */
if ((vp->iLabelIndex != LBL_CONTAINER) ||
(vp->iLabelIndex != LBL_INDEX_CONTAINER))
{
while ((vp != NULL) &&
(vp->iLabelIndex != LBL_INDEX))
vp = vp->PrevItem;
}
if (vp != NULL)
{
gv_uiViewSearchLfNum = (FLMUINT)(vp->Option & (~(LOGICAL_FILE_OPTION)));
if (ViewGetKey())
gv_bViewPoppingStack = TRUE;
}
else
ViewShowError(
"Position cursor to a logical file before searching");
}
break;
default:
ViewShowError(
"This block does not belong to a logical file - cannot search");
break;
}
break;
default:
if (Option & LOGICAL_FILE_OPTION)
ViewLogicalFile( (FLMUINT)(Option & (~(LOGICAL_FILE_OPTION))));
else if ((Option & LFH_OPTION_ROOT_BLOCK) ||
(Option & LFH_OPTION_LAST_BLOCK))
{
FLMUINT Offset = (FLMUINT)(BH_OVHD +
(Option & 0x0FFF) * LFH_SIZE);
FLMBYTE * LFHPtr = &BlkPtr [Offset];
if (Option & LFH_OPTION_ROOT_BLOCK)
{
BlkExp2.Level = 0xFF;
BlkExp2.Type = 0xFF;
BlkAddress2 = FB2UD( &LFHPtr [LFH_ROOT_BLK_OFFSET]);
BlkExp2.LfNum = FB2UW( &LFHPtr [LFH_LF_NUMBER_OFFSET]);
BlkExp2.NextAddr = BlkExp2.PrevAddr = BT_END;
}
else
{
flmAssert( 0);
}
ViewBlocks( BlkAddress2, BlkAddress2, &BlkExp2);
}
else if (Option & BLK_OPTION_CHILD_BLOCK)
{
FLMBYTE * TempAddrPtr;
if (BlkExp->Type == BHT_NON_LEAF_DATA)
TempAddrPtr = &BlkPtr [(Option & 0xFFF) + BNE_DATA_CHILD_BLOCK];
else
TempAddrPtr = &BlkPtr [(Option & 0xFFF) + BNE_CHILD_BLOCK];
BlkAddress2 = FB2UD( TempAddrPtr);
f_memcpy( &BlkExp2, BlkExp, sizeof( BLK_EXP));
BlkExp2.NextAddr = 0;
BlkExp2.PrevAddr = 0;
if (BlkExp2.Level == 0xFF)
BlkExp2.Level = BlkPtr [BH_LEVEL] - 1;
else
BlkExp2.Level--;
if (!BlkExp2.Level)
BlkExp2.Type = BHT_LEAF;
ViewBlocks( BlkAddress2, BlkAddress2, &BlkExp2);
}
else
Repaint = 0;
break;
}
}
}
f_free( &BlkPtr);
ViewRestore( &SaveView);
}
/********************************************************************
Desc: ?
*********************************************************************/
FLMINT GetBlockAddrType(
FLMUINT * BlkAddressRV,
FLMUINT * BlkTypeRV)
{
char TempBuf [20];
FLMUINT i;
FLMUINT c;
FLMUINT BadDigit;
FLMUINT GotAddress = FALSE;
FLMUINT GotType = FALSE;
FLMUINT GetOK = 1;
FLMUINT uiNumCols;
FLMUINT uiNumRows;
f_conGetScreenSize( &uiNumCols, &uiNumRows);
/* First get the block address */
while ((!GotAddress) && (GetOK))
{
BadDigit = FALSE;
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, uiNumRows - 2);
ViewAskInput( "Enter Block Address (in hex): ",
TempBuf, sizeof( TempBuf));
if ((f_stricmp( TempBuf, "\\") == 0) ||
(!TempBuf [0]))
{
GetOK = 0;
break;
}
i = 0;
*BlkAddressRV = 0;
while ((TempBuf [i]) && (i < 8))
{
(*BlkAddressRV) <<= 4;
c = TempBuf [i];
if ((c >= '0') && (c <= '9'))
(*BlkAddressRV) += (FLMUINT)(c - '0');
else if ((c >= 'a') && (c <= 'f'))
(*BlkAddressRV) += (FLMUINT)(c - 'a' + 10);
else if ((c >= 'A') && (c <= 'F'))
(*BlkAddressRV) += (FLMUINT)(c - 'A' + 10);
else
{
BadDigit = TRUE;
break;
}
i++;
}
if (BadDigit)
ViewShowError(
"Illegal digit in number - must be hex digits");
else if (TempBuf [i])
ViewShowError(
"Too many characters in number");
else
GotAddress = TRUE;
}
/* Next get the block type */
if (GetOK)
{
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, uiNumRows - 1);
f_conStrOutXY( "View: 1=Leaf, 2=NLeafCnts, 3=NLeafVar, 4=NLeafFix, 5=Avail, 6=LFH: ",
0, uiNumRows - 1);
}
while ((GetOK) && (!GotType))
{
c = f_conGetKey();
switch( c)
{
case FKB_ESCAPE:
case '0':
GetOK = 0;
break;
case '1':
GotType = TRUE;
*BlkTypeRV = BHT_LEAF;
break;
case '2':
GotType = TRUE;
*BlkTypeRV = BHT_NON_LEAF_COUNTS;
break;
case '3':
GotType = TRUE;
*BlkTypeRV = BHT_NON_LEAF;
break;
case '4':
GotType = TRUE;
*BlkTypeRV = BHT_NON_LEAF_DATA;
break;
case '5':
GotType = TRUE;
*BlkTypeRV = BHT_FREE;
break;
case '6':
GotType = TRUE;
*BlkTypeRV = BHT_LFH_BLK;
break;
default:
break;
}
}
f_conClearScreen( 0, uiNumRows - 2);
ViewEscPrompt();
return( GetOK);
}
/********************************************************************
Desc: ?
*********************************************************************/
FSTATIC void SetSearchTopBottom(
void
)
{
if (gv_pViewSearchItem == NULL)
{
gv_pViewMenuCurrItem = NULL;
gv_uiViewMenuCurrItemNum = 0;
gv_uiViewCurrFileOffset = 0;
gv_uiViewCurrFileNumber = 0;
gv_uiViewTopRow = 0;
}
else
{
gv_pViewMenuCurrItem = gv_pViewSearchItem;
gv_uiViewMenuCurrItemNum = gv_pViewSearchItem->ItemNum;
gv_uiViewCurrFileOffset = gv_pViewSearchItem->ModFileOffset;
gv_uiViewCurrFileNumber = gv_pViewSearchItem->ModFileNumber;
gv_uiViewTopRow = gv_pViewSearchItem->Row;
if (gv_uiViewTopRow < LINES_PER_PAGE / 2)
gv_uiViewTopRow = 0;
else
gv_uiViewTopRow -= (LINES_PER_PAGE / 2);
}
gv_uiViewBottomRow = gv_uiViewTopRow + LINES_PER_PAGE - 1;
if (gv_uiViewBottomRow > gv_pViewMenuLastItem->Row)
{
gv_uiViewBottomRow = gv_pViewMenuLastItem->Row;
if (gv_uiViewBottomRow < LINES_PER_PAGE)
gv_uiViewTopRow = 0;
else
gv_uiViewTopRow = gv_uiViewBottomRow - LINES_PER_PAGE + 1;
}
}
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