58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
//+-----------------------------------------------------------------------
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//
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// File: CSUMMGR.c
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//
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// Contents: Checksum management functions
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//
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//
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// History: 25 Feb 92, RichardW, Created
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//
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//------------------------------------------------------------------------
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <kerbcon.h>
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#include <security.h>
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#include <cryptdll.h>
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#define MAX_CHECK_SUMS 16
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CHECKSUM_FUNCTION CheckSumFns[MAX_CHECK_SUMS];
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ULONG cCheckSums = 0;
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#ifdef KERNEL_MODE
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#pragma alloc_text( PAGEMSG, CDRegisterCheckSum )
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#pragma alloc_text( PAGEMSG, CDLocateCheckSum )
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#endif
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NTSTATUS NTAPI
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CDRegisterCheckSum( PCHECKSUM_FUNCTION pcsfSum)
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{
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if (cCheckSums < MAX_CHECK_SUMS)
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{
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CheckSumFns[cCheckSums++] = *pcsfSum;
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return(S_OK);
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}
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return(STATUS_INSUFFICIENT_RESOURCES);
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}
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NTSTATUS NTAPI
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CDLocateCheckSum( ULONG dwCheckSumType,
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PCHECKSUM_FUNCTION * ppcsfSum)
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{
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ULONG iCS = cCheckSums;
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while (iCS--)
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{
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if (CheckSumFns[iCS].CheckSumType == dwCheckSumType)
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{
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*ppcsfSum = &CheckSumFns[iCS];
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return(S_OK);
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}
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}
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return(SEC_E_CHECKSUM_NOT_SUPP);
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}
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