118 lines
2.3 KiB
C++
118 lines
2.3 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: domain.cxx
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//
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// Contents: GuidToUlong - converts Cairo GUID into a ULONG
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//
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//
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// Functions:
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//
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// History: 6-28-93 MikeSw Created
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//
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//
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//----------------------------------------------------------------------------
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#include <secpch2.hxx>
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#pragma hdrstop
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extern "C"
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VOID
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DomainGroupName(PWCHAR pwszDomain,
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PCHAR psGroup)
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{
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LONG cDomLen;
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CHAR szDom[MAX_PATH];
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PCHAR psSep;
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(VOID)wcstombs(szDom, pwszDomain, MAX_PATH * sizeof(WCHAR));
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strlwr(szDom); // eliminate case mismatches
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*psGroup = szDom[0]; // copy the first
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psSep = strrchr(szDom, '\\');
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if(!psSep)
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{
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psSep = szDom;
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}
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else
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{
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psSep++;
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}
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cDomLen = min(14, strlen(psSep)); // fill bytes if necessary
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memset(&psGroup[cDomLen + 1], 0x20, 14 - cDomLen);
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memcpy(&psGroup[1], psSep, cDomLen);
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psGroup[15] = 0x1c; // make it an internet group
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}
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//
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// Get an internet group name for a GUID.
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// The strategy is to drop of high-byte of the time field. This changes
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// infrequently (every 50 years or so) so it likely won't cause a problem.
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//
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#if 0
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extern "C"
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VOID
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SqueezeGUID( GUID * pgGUID,
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PCHAR psGroup)
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{
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/*
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* Turn a GUID into an internet group name
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*/
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PCHAR psGUID = (PCHAR)pgGUID;
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memcpy(psGroup, psGUID, 7);
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memcpy(&psGroup[7], &psGUID[8], 8);
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psGroup[15] = 0x1c;
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}
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#else
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//
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// Get an internet group name for a GUID.
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// The strategy is to form a binary string made up of the adapter address
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// plus a XSUM byye, ASCIIZE it, and append a " <1c>". Ta da.
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//
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extern "C"
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VOID
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SqueezeGUID( GUID * pgGUID,
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PCHAR psGroup)
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{
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/*
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* Turn a GUID into an internet group name
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*/
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PCHAR psGUID = (PCHAR)pgGUID;
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UCHAR bXSUM;
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ULONG ulX;
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//
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// compute XSUM
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//
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for(bXSUM = 0, ulX = 0; ulX <= 15; psGUID++, ulX++)
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{
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bXSUM += (UCHAR)((ULONG)*psGUID + ulX);
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}
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sprintf(psGroup, "Z%02X%02X%02X%02X%02X%02X%02x",
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pgGUID->Data4[2], pgGUID->Data4[3], pgGUID->Data4[4],
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pgGUID->Data4[5], pgGUID->Data4[6], pgGUID->Data4[7],
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bXSUM);
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psGroup[15] = 0x1c;
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}
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#endif
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