133 lines
2.8 KiB
C
133 lines
2.8 KiB
C
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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HexDump.c
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Abstract:
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This module performs debug hex dumps.
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Author:
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John Rogers (JohnRo) 25-Apr-1991
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Environment:
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Portable to any flat, 32-bit environment. (Uses Win32 typedefs.)
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Requires ANSI C extensions: slash-slash comments, long external names.
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Revision History:
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25-Apr-1991 JohnRo
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Created procedure version from macro in <netdebug.h>.
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19-May-1991 JohnRo
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Make LINT-suggested changes.
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12-Jun-1991 JohnRo
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Improved output readability.
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--*/
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// These must be included first:
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#include <windef.h> // IN, LPBYTE, LPVOID, NULL, etc.
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// These may be included in any order:
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#include <ctype.h> // isprint().
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#include <netdebug.h> // My prototype, NetpKdPrint(()).
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#if DBG
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#ifndef MIN
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#define MIN(a,b) ( ( (a) < (b) ) ? (a) : (b) )
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#endif
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#define DWORDS_PER_LINE 4
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#define BYTES_PER_LINE (DWORDS_PER_LINE * sizeof(DWORD))
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#define SPACE_BETWEEN_BYTES NetpKdPrint((" "))
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#define SPACE_BETWEEN_DWORDS NetpKdPrint((" "))
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DBGSTATIC VOID
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NetpDbgHexDumpLine(
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IN LPBYTE StartAddr,
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IN DWORD BytesInThisLine
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)
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{
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LPBYTE BytePtr;
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DWORD BytesDone;
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DWORD HexPosition;
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NetpKdPrint((FORMAT_LPVOID " ", (LPVOID) StartAddr));
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BytePtr = StartAddr;
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BytesDone = 0;
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while (BytesDone < BytesInThisLine) {
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NetpKdPrint(("%02X", *BytePtr)); // space for "xx" (see pad below).
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SPACE_BETWEEN_BYTES;
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++BytesDone;
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if ( (BytesDone % sizeof(DWORD)) == 0) {
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SPACE_BETWEEN_DWORDS;
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}
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++BytePtr;
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}
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HexPosition = BytesDone;
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while (HexPosition < BYTES_PER_LINE) {
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NetpKdPrint((" ")); // space for "xx" (see byte above).
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SPACE_BETWEEN_BYTES;
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++HexPosition;
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if ( (HexPosition % sizeof(DWORD)) == 0) {
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SPACE_BETWEEN_DWORDS;
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}
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}
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BytePtr = StartAddr;
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BytesDone = 0;
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while (BytesDone < BytesInThisLine) {
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if (isprint(*BytePtr)) {
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NetpKdPrint(( FORMAT_CHAR, (CHAR) *BytePtr ));
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} else {
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NetpKdPrint(( "." ));
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}
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++BytesDone;
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++BytePtr;
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}
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NetpKdPrint(("\n"));
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} // NetpDbgHexDumpLine
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#endif // DBG
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// NetpDbgHexDump: do a hex dump of some number of bytes to the debug
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// terminal or whatever. This is a no-op in a nondebug build.
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#undef NetpDbgHexDump
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VOID
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NetpDbgHexDump(
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IN LPBYTE StartAddr,
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IN DWORD Length
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)
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{
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#if DBG
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DWORD BytesLeft = Length;
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LPBYTE LinePtr = StartAddr;
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DWORD LineSize;
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while (BytesLeft > 0) {
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LineSize = MIN(BytesLeft, BYTES_PER_LINE);
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NetpDbgHexDumpLine( LinePtr, LineSize );
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BytesLeft -= LineSize;
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LinePtr += LineSize;
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}
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#endif // DBG
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} // NetpDbgHexDump
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