115 lines
1.7 KiB
C
115 lines
1.7 KiB
C
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/*++
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Copyright (c) 1999-2000 Microsoft Corporation
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Module Name:
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dbgmsg.c
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Abstract:
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Contains debug code for dbgcon and vprintf support.
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MILLEN gets vprintf support.
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NT gets dbg conn support.
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Author:
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Scott Holden (sholden) 20-Oct-1999
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--*/
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#include <tcpipbase.h>
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#ifdef DEBUG_MSG
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// Everything off by default.
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uint DbgSettingsLevel = 0x00000000;
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uint DbgSettingsZone = 0x00000000;
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PDBGMSG g_pDbgMsg = DbgPrint;
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#if MILLEN
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ULONG g_fVprintf = 0;
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VOID
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InitVprintf();
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ULONG
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DbgMsg(
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PCH pszFormat,
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...
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);
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VOID
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DebugMsgInit()
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{
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InitVprintf();
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if (g_fVprintf) {
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DbgPrint("TCPIP: vprintf is installed\n");
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DbgSettingsLevel = 0x000000ff;
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DbgSettingsZone = 0x00ffffff;
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g_pDbgMsg = DbgMsg;
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}
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return;
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}
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VOID
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InitVprintf()
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{
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//
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// Check if Vprintf is installed
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//
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_asm {
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mov eax, 0x0452
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mov edi, 0x0
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_emit 0xcd
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_emit 0x20
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_emit 0x46 // VMM Get DDB (Low)
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_emit 0x01 // VMM Get DDB (High)
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_emit 0x01 // VMM VxD ID (Low)
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_emit 0x00 // VMM VxD ID (High)
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mov [g_fVprintf], ecx
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}
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}
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ULONG
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DbgMsg(
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PCH pszFormat,
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...
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)
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{
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_asm {
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lea esi, pszFormat
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mov eax, esi
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add eax,4
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push eax
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push [esi]
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_emit 0xcd
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_emit 0x20
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_emit 0x02 // Vprintf function
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_emit 0
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_emit 0x52 // Vprintf VxD ID (Low)
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_emit 0x04 // Vprintf VxD ID (High)
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add esp, 8
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}
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return 0;
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}
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#else // MILLEN
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VOID
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DebugMsgInit()
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{
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return;
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}
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#endif // !MILLEN
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#endif // DEBUG_MSG
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