73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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#include "singx86.h"
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struct CharVector {
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ULONG64 ulDataOffset;
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ULONG64 ulDataLength;
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};
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EXT_DECL(charv) // Defines: PDEBUG_CLIENT Client, PCSTR args
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{
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EXT_ENTER(); // Defines: HRESULT status = S_OK;
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if (!isalpha(args[0])) {
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ExtOut("Usage:\n !charv <var>\n");
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goto Exit;
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}
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ULONG64 indirect = 0;
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EXT_CHECK(g_ExtSymbols->GetOffsetByName(args, &indirect));
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ULONG64 offset = 0;
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EXT_CHECK(g_ExtData->ReadPointersVirtual(1, indirect, &offset));
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ULONG typeId;
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ULONG64 module;
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EXT_CHECK(g_ExtSymbols->GetSymbolTypeId(args, &typeId, &module));
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CHAR szTypeName[255];
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const SIZE_T cbTypeName = sizeof(szTypeName) / sizeof(szTypeName[0]);
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EXT_CHECK(g_ExtSymbols->GetTypeName(module, typeId,
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szTypeName, cbTypeName, NULL));
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const CHAR szExpected[] = "char**";
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const SIZE_T cbExpected = sizeof(szExpected) / sizeof(szExpected[0]);
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if (strncmp(szTypeName, szExpected, cbExpected)) {
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ExtOut("%s is not a char vector.\n", args);
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goto Exit;
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}
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struct CharVector cv;
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EXT_CHECK(g_ExtData->ReadPointersVirtual(2, offset, (PULONG64)&cv));
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SIZE_T cChars = (SIZE_T) cv.ulDataLength / sizeof(WCHAR);
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PWCHAR pwcText = new WCHAR[cChars + 1];
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pwcText[cChars] = UNICODE_NULL;
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HRESULT hRR =
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g_ExtData->ReadVirtual(cv.ulDataOffset,
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pwcText,
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(ULONG)cv.ulDataLength,
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NULL);
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if (S_OK == hRR) {
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g_ExtControl->Output(DEBUG_OUTPUT_NORMAL,
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"Char vector %s : address 0x%p length " \
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"0x%p\nValue = \"",
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args, cv.ulDataOffset,
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(cv.ulDataLength / sizeof(WCHAR)));
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g_ExtControl->OutputWide(DEBUG_OUTPUT_NORMAL, pwcText);
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g_ExtControl->Output(DEBUG_OUTPUT_NORMAL, "\"\n");
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}
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else {
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ExtVerb("ReadVirtual failed (%p)", hRR);
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}
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delete [] pwcText;
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EXT_LEAVE();
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}
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