windows-nt/Source/XPSP1/NT/base/busdrv/acpi/tools/kdext/dump.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
dump.c
Abstract:
Dumps a block of memory to file
Author:
Stephane Plante (splante)
Environment:
User Mode
--*/
#include "pch.h"
VOID
dumpMemory(
IN ULONG_PTR Address,
IN ULONG Length,
IN PUCHAR Name
)
{
BOOL b;
HANDLE file;
PUCHAR buffer;
ULONG readLength;
//
// Open the file
//
file = CreateFile(
Name,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_ALWAYS,
0,
NULL
);
if (file == INVALID_HANDLE_VALUE) {
dprintf("dm: could not open '%s'\n",Name);
return;
}
//
// Read the bytes from memory
//
buffer = LocalAlloc( LPTR, Length );
if (buffer == NULL) {
dprintf("dm: could not allocate '0x%x' bytes\n", Length );
CloseHandle( file );
return;
}
b = ReadMemory(
Address,
buffer,
Length,
&readLength
);
if (!b) {
dprintf(
"dm: could not read '0x%x' bytes from '0x%p'\n",
Length,
Address
);
LocalFree ( buffer );
CloseHandle( file );
return;
}
//
// Write the contents of memory to the file
//
WriteFile( file, buffer, readLength, &readLength, NULL );
//
// Done
//
CloseHandle( file );
LocalFree( buffer );
}