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784 lines
20 KiB
784 lines
20 KiB
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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hivestat.c
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Abstract:
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Dumps various statistics on hv (low) level structures in a hive. (See
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regstat for higher level stuff.)
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Statistics:
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Short: # of bins
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average bin size
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max bin size
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# of cells
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# of free cells
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# of allocated cells
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average free cell size
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total free size
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max free cell size
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average allocated size
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total allocated size
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max allocated cell size
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overhead summary (header, bin headers, cell headers)
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Long: bin#, offset, size
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cell offset, size, allocated
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cell offset, size, free
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Usage: {[+|-][<option>]} <filename>
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(+ = on by default, - = off by default)
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+s = summary - all of the short statistics
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-t[bafc] = trace, line per entry, bin, allocated, free, all cells
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(+tbc == +tbaf)
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-c = cell type summary
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-a[kvs] = Access Export (key nodes, values, SDs)
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Author:
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Bryan M. Willman (bryanwi) 2-Sep-1992
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Revision History:
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--*/
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/*
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NOTE: Unlike other hive/registry tools, this one will not read the
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entire hive into memory, but will instead read it in via
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file I/O. This makes it faster/easier to apply to very large
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hives.
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*/
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#include "regutil.h"
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#include "edithive.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <windows.h>
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UCHAR *helptext[] = {
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"hivestat: ",
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"Statistics: ",
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" Short: # of bins ",
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" average bin size ",
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" max bin size ",
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" # of cells ",
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" # of free cells ",
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" # of allocated cells ",
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" average free cell size ",
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" total free size ",
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" max free cell size ",
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" average allocated size ",
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" total allocated size ",
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" max allocated cell size ",
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" overhead summary (header, bin headers, cell headers) ",
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" Long: bin#, offset, size ",
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" cell offset, size, allocated ",
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" cell offset, size, free ",
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"Usage: {[+|-][<option>]} <filename> ",
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" (+ = on by default, - = off by default) ",
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" +s = summary - all of the short statistics ",
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" -t[bafc] = trace, line per entry, bin, allocated, free, all cells",
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" (+tbc == +tbaf) ",
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" -c = cell type summary ",
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" -a[kvs] = Access Export (key nodes, values, SDs) ",
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NULL
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};
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VOID
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ParseArgs(
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int argc,
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char *argv[]
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);
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VOID
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ScanHive(
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VOID
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);
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VOID
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ScanCell(
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PHCELL Cell,
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ULONG CellSize
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);
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VOID
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ScanKeyNode(
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IN PCM_KEY_NODE Node,
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IN ULONG CellSize
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);
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VOID
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ScanKeyValue(
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IN PCM_KEY_VALUE Value,
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IN ULONG CellSize
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);
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VOID
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ScanKeySD(
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IN PCM_KEY_SECURITY Security,
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IN ULONG CellSize
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);
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VOID
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ScanKeyIndex(
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IN PCM_KEY_INDEX Index,
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IN ULONG CellSize
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);
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VOID
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ScanUnknown(
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IN PCELL_DATA Data,
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IN ULONG CellSize
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);
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//
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// CONTROL ARGUMENTS
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//
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BOOLEAN DoCellType = FALSE;
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BOOLEAN DoSummary = TRUE;
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BOOLEAN DoTraceBin = FALSE;
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BOOLEAN DoTraceFree = FALSE;
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BOOLEAN DoTraceAlloc = FALSE;
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BOOLEAN AccessKeys = FALSE;
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BOOLEAN AccessValues = FALSE;
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BOOLEAN AccessSD = FALSE;
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LPCTSTR FileName = NULL;
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ULONG HiveVersion;
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//
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// SUMMARY TOTALS
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//
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ULONG SizeKeyData=0;
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ULONG SizeValueData=0;
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ULONG SizeSDData=0;
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ULONG SizeIndexData=0;
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ULONG SizeUnknownData=0;
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ULONG NumKeyData=0;
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ULONG NumValueData=0;
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ULONG NumSDData=0;
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ULONG NumIndexData=0;
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ULONG NumUnknownData=0;
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void
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main(
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int argc,
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char *argv[]
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)
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{
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ParseArgs(argc, argv);
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ScanHive();
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exit(0);
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}
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VOID
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ParseArgs(
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int argc,
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char *argv[]
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)
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/*++
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Routine Description:
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Read arguments and set control arguments and file name from them.
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Arguments:
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argc, argv, standard meaning
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Return Value:
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None.
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--*/
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{
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char *p;
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int i;
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BOOLEAN command;
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if (argc == 1) {
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for (i = 0; helptext[i] != NULL; i++) {
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fprintf(stderr, "%s\n", helptext[i]);
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}
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exit(1);
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}
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for (i = 1; i < argc; i++) {
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p = argv[i];
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if (*p == '+') {
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// switch something on
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command = TRUE;
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} else if (*p == '-') {
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// switch something off
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command = FALSE;
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} else {
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FileName = p;
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continue;
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}
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p++;
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if (*p == '\0')
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continue;
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switch (*p) {
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case 's':
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case 'S':
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DoSummary = command;
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break;
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case 'c':
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case 'C':
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DoCellType = command;
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break;
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case 'a':
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case 'A':
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p++;
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while (*p != '\0') {
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switch (*p) {
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case 'k':
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case 'K':
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AccessKeys = command;
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break;
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case 's':
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case 'S':
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AccessSD = command;
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break;
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case 'v':
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case 'V':
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AccessValues = command;
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break;
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default:
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break;
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}
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p++;
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}
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break;
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case 't':
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case 'T':
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p++;
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while (*p != '\0') {
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switch (*p) {
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case 'b':
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case 'B':
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DoTraceBin = command;
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break;
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case 'a':
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case 'A':
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DoTraceAlloc = command;
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break;
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case 'f':
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case 'F':
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DoTraceFree = command;
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break;
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case 'c':
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case 'C':
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DoTraceAlloc = command;
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DoTraceFree = command;
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break;
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default:
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break;
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}
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p++;
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}
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break;
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default:
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break;
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}
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}
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return;
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}
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VOID
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ScanHive(
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)
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/*++
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Routine Description:
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Scan the hive, report what we see, based on control arguments.
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--*/
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{
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static char buffer[HBLOCK_SIZE];
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PHBASE_BLOCK bbp;
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HANDLE filehandle;
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BOOL rf;
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ULONG readcount;
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ULONG hivelength;
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ULONG hiveposition;
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PHCELL cp;
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PHCELL guard;
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PHBIN hbp;
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ULONG hoff;
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ULONG StatBinCount = 0;
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ULONG StatBinTotal = 0;
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ULONG StatBinMax = 0;
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ULONG StatFreeCount = 0;
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ULONG StatFreeTotal = 0;
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ULONG StatFreeMax = 0;
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ULONG StatAllocCount = 0;
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ULONG StatAllocTotal = 0;
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ULONG StatAllocMax = 0;
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ULONG binread;
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ULONG binsize;
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ULONG cellsize;
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ULONG boff;
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ULONG lboff;
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ULONG SizeTotal;
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//
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// open the file
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//
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filehandle = CreateFile(FileName, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
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if (filehandle == INVALID_HANDLE_VALUE) {
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fprintf(stderr,
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"hivestat: Could not open file '%s' error = %08lx\n",
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FileName, GetLastError()
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);
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exit(1);
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}
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//
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// read the header
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//
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rf = ReadFile(filehandle, buffer, HBLOCK_SIZE, &readcount, NULL);
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if ( ( ! rf ) || (readcount != HBLOCK_SIZE) ) {
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fprintf(stderr, "hivestat: '%s' - cannot read base block!\n", FileName);
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exit(1);
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}
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bbp = (PHBASE_BLOCK)(&(buffer[0]));
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if ((bbp->Major != HSYS_MAJOR) ||
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(bbp->Minor > HSYS_MINOR))
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{
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fprintf(stderr,
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"hivestat: major/minor != %d/%d get newer hivestat\n",
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HSYS_MAJOR, HSYS_MINOR
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);
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exit(1);
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}
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HiveVersion = bbp->Minor;
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hivelength = bbp->Length + HBLOCK_SIZE;
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hiveposition = HBLOCK_SIZE;
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hoff = 0;
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printf("hivestat: '%s'\n", FileName);
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if (DoTraceBin || DoTraceFree || DoTraceAlloc) {
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printf("\nTrace\n");
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printf("bi=bin, fr=free, al=allocated\n");
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printf("offset is file offset, sub HBLOCK to get HCELL\n");
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printf("type,offset,size\n");
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printf("\n");
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}
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//
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// scan the hive
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//
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guard = (PHCELL)(&(buffer[0]) + HBLOCK_SIZE);
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//
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// hiveposition is file relative offset of next block we will read
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//
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// hoff is the file relative offset of the last block we read
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//
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// hivelength is actual length of file (header's recorded length plus
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// the size of the header.
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//
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// cp is pointer into memory, within range of buffer, it's a cell pointer
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//
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while (hiveposition < hivelength) {
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//
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// read in first block of bin, check signature, get bin stats
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//
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rf = ReadFile(filehandle, buffer, HBLOCK_SIZE, &readcount, NULL);
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if ( ( ! rf ) || (readcount != HBLOCK_SIZE) ) {
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fprintf(stderr, "hivestat: '%s' read error @%08lx\n", FileName, hiveposition);
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exit(1);
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}
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hbp = (PHBIN)(&(buffer[0]));
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if (hbp->Signature != HBIN_SIGNATURE) {
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fprintf(stderr,
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"hivestat: '%s' bad bin sign. @%08lx\n", FileName, hiveposition);
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exit(1);
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}
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hiveposition += HBLOCK_SIZE;
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hoff += HBLOCK_SIZE;
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ASSERT(hoff+HBLOCK_SIZE == hiveposition);
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StatBinCount++;
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binsize = hbp->Size;
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StatBinTotal += binsize;
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if (binsize > StatBinMax) {
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StatBinMax = binsize;
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}
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if (DoTraceBin) {
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printf("bi,x%08lx,%ld\n", hoff, binsize);
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}
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//
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// scan the bin
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//
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// cp = pointer to cell we are looking at
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// boff = offset within bin
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// lboff = last offset within bin, used only for consistency checks
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// binread = number of bytes of bin we've read so far
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//
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cp = (PHCELL)((PUCHAR)hbp + sizeof(HBIN));
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boff = sizeof(HBIN);
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lboff = -1;
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binread = HBLOCK_SIZE;
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while (binread <= binsize) {
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//
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// if free, do free stuff
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// else do alloc stuff
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// do full stuff
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//
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if (cp->Size > 0) {
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//
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// free
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//
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cellsize = cp->Size;
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StatFreeCount++;
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StatFreeTotal += cellsize;
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if (cellsize > StatFreeMax) {
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StatFreeMax = cellsize;
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}
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if (DoTraceFree) {
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printf("fr,x%08lx,%ld\n",
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hoff+((PUCHAR)cp - &(buffer[0])), cellsize);
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}
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} else {
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//
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// alloc
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//
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cellsize = -1 * cp->Size;
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StatAllocCount++;
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StatAllocTotal += cellsize;
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if (cellsize > StatAllocMax) {
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StatAllocMax = cellsize;
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}
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if (DoTraceAlloc) {
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printf("al,x%08lx,%ld\n",
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hoff+((PUCHAR)cp - &(buffer[0])), cellsize);
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}
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ScanCell(cp,cellsize);
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}
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//
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// do basic consistency check
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//
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#if 0
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if (cp->Last != lboff) {
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printf("e!,x%08lx bad LAST pointer %08lx\n",
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hoff+((PUCHAR)cp - &(buffer[0])), cp->Last);
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}
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#endif
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//
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// advance to next cell
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//
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lboff = boff;
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cp = (PHCELL)((PUCHAR)cp + cellsize);
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boff += cellsize;
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|
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//
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// scan ahead in bin, if cp has reached off end of block,
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// AND there's bin left to read.
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// do this BEFORE breaking out for boff at end.
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//
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while ( (cp >= guard) && (binread < binsize) ) {
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rf = ReadFile(filehandle, buffer, HBLOCK_SIZE, &readcount, NULL);
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if ( ( ! rf ) || (readcount != HBLOCK_SIZE) ) {
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fprintf(stderr, "hivestat: '%s' read error @%08lx\n", FileName, hiveposition);
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exit(1);
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}
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cp = (PHCELL)((PUCHAR)cp - HBLOCK_SIZE);
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hiveposition += HBLOCK_SIZE;
|
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hoff += HBLOCK_SIZE;
|
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binread += HBLOCK_SIZE;
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ASSERT(hoff+HBLOCK_SIZE == hiveposition);
|
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}
|
|
|
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if (boff >= binsize) {
|
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break; // we are done with this bin
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}
|
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}
|
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}
|
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|
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//
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// Traces are done, stats gathered, print summary
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//
|
|
if (DoSummary) {
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|
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printf("\nSummary:\n");
|
|
printf("type\tcount/max single/total space\n");
|
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printf("%s\t%7ld\t%7ld\t%7ld\n",
|
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"bin", StatBinCount, StatBinMax, StatBinTotal);
|
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printf("%s\t%7ld\t%7ld\t%7ld\n",
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"free", StatFreeCount, StatFreeMax, StatFreeTotal);
|
|
printf("%s\t%7ld\t%7ld\t%7ld\n",
|
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"alloc", StatAllocCount, StatAllocMax, StatAllocTotal);
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|
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}
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|
|
if (DoSummary && DoCellType) {
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|
|
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printf("\n");
|
|
|
|
SizeTotal = SizeKeyData +
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SizeValueData +
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SizeSDData +
|
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SizeIndexData +
|
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SizeUnknownData;
|
|
|
|
printf("Total Key Data %7d (%5.2f %%)\n", SizeKeyData,
|
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(float)SizeKeyData*100/SizeTotal);
|
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printf("Total Value Data %7d (%5.2f %%)\n", SizeValueData,
|
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(float)SizeValueData*100/SizeTotal);
|
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printf("Total SD Data %7d (%5.2f %%)\n", SizeSDData,
|
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(float)SizeSDData*100/SizeTotal);
|
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printf("Total Index Data %7d (%5.2f %%)\n", SizeIndexData,
|
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(float)SizeIndexData*100/SizeTotal);
|
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printf("Total Unknown Data %7d (%5.2f %%)\n", SizeUnknownData,
|
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(float)SizeUnknownData*100/SizeTotal);
|
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|
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printf("\n");
|
|
printf("Average Key Data %8.2f (%d cells)\n",
|
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(float)SizeKeyData/NumKeyData,
|
|
NumKeyData);
|
|
printf("Average Value Data %8.2f (%d cells)\n",
|
|
(float)SizeValueData/NumValueData,
|
|
NumValueData);
|
|
printf("Average SD Data %8.2f (%d cells)\n",
|
|
(float)SizeSDData/NumSDData,
|
|
NumSDData);
|
|
printf("Average Index Data %8.2f (%d cells)\n",
|
|
(float)SizeIndexData/NumIndexData,
|
|
NumIndexData);
|
|
printf("Average Unknown Data %8.2f (%d cells)\n",
|
|
(float)SizeUnknownData/NumUnknownData,
|
|
NumUnknownData);
|
|
}
|
|
return;
|
|
}
|
|
|
|
VOID
|
|
ScanCell(
|
|
IN PHCELL Cell,
|
|
IN ULONG CellSize
|
|
)
|
|
|
|
/*++
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Routine Description:
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Given a pointer to an HCELL, this tries to figure out what type
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of data is in it (key, value, SD, etc.) and gather interesting
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statistics about it.
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Arguments:
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Cell - Supplies a pointer to the HCELL
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CellSize - Supplies the size of the HCELL
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Return Value:
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None, sets some global statistics depending on content of the cell.
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--*/
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{
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PCELL_DATA Data;
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if (!DoCellType) {
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return;
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}
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if (HiveVersion==1) {
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Data = (PCELL_DATA)&Cell->u.OldCell.u.UserData;
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} else {
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Data = (PCELL_DATA)&Cell->u.NewCell.u.UserData;
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}
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//
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// grovel through the data, see if we can figure out what it looks like
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//
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if ((Data->u.KeyNode.Signature == CM_KEY_NODE_SIGNATURE) &&
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(CellSize > sizeof(CM_KEY_NODE))) {
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//
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// probably a key node
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//
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ScanKeyNode(&Data->u.KeyNode, CellSize);
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} else if ((Data->u.KeyValue.Signature == CM_KEY_VALUE_SIGNATURE) &&
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(CellSize > sizeof(CM_KEY_VALUE))) {
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//
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// probably a key value
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//
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ScanKeyValue(&Data->u.KeyValue, CellSize);
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} else if ((Data->u.KeySecurity.Signature == CM_KEY_SECURITY_SIGNATURE) &&
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(CellSize > sizeof(CM_KEY_SECURITY))) {
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//
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// probably a security descriptor
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//
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ScanKeySD(&Data->u.KeySecurity, CellSize);
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} else if ((Data->u.KeyIndex.Signature == CM_KEY_INDEX_ROOT) ||
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(Data->u.KeyIndex.Signature == CM_KEY_INDEX_LEAF)) {
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//
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// probably a key index
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//
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ScanKeyIndex(&Data->u.KeyIndex, CellSize);
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} else {
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//
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// Nothing with a signature, could be either
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// name
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// key list
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// value data
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//
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ScanUnknown(Data, CellSize);
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}
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}
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VOID
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ScanKeyNode(
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IN PCM_KEY_NODE Node,
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IN ULONG CellSize
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)
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{
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int i;
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SizeKeyData += CellSize;
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NumKeyData++;
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if (AccessKeys) {
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printf("%d, %d, %d, %d, \"",
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Node->SubKeyCounts[Stable],
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Node->ValueList.Count,
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Node->NameLength,
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Node->ClassLength);
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for (i=0; i < Node->NameLength/sizeof(WCHAR); i++) {
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printf("%c",(CHAR)Node->Name[i]);
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}
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printf("\"\n");
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}
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}
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VOID
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ScanKeyValue(
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IN PCM_KEY_VALUE Value,
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IN ULONG CellSize
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)
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{
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int i;
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int DataLength;
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SizeValueData += CellSize;
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NumValueData++;
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if (AccessValues) {
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DataLength = Value->DataLength;
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if (DataLength >= CM_KEY_VALUE_SPECIAL_SIZE) {
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DataLength -= CM_KEY_VALUE_SPECIAL_SIZE;
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}
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printf("%d, %d, \"",
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DataLength,
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Value->NameLength);
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for (i=0; i < Value->NameLength/sizeof(WCHAR); i++) {
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printf("%c",(CHAR)Value->Name[i]);
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}
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printf("\"\n");
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}
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}
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VOID
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ScanKeySD(
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IN PCM_KEY_SECURITY Security,
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IN ULONG CellSize
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)
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{
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SizeSDData += CellSize;
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NumSDData++;
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if (AccessSD) {
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printf("%d,%d\n",
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Security->ReferenceCount,
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Security->DescriptorLength);
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}
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}
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VOID
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ScanKeyIndex(
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IN PCM_KEY_INDEX Index,
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IN ULONG CellSize
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)
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{
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SizeIndexData += CellSize;
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NumIndexData++;
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}
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VOID
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ScanUnknown(
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IN PCELL_DATA Data,
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IN ULONG CellSize
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)
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{
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SizeUnknownData += CellSize;
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NumUnknownData++;
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}
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