178 lines
3.7 KiB
C
178 lines
3.7 KiB
C
/*++
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Copyright (c) 1997-1999 Microsoft Corporation
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Module Name:
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dpapi.c
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Abstract:
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WMI data provider api set
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Author:
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16-Jan-1997 AlanWar
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Revision History:
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--*/
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#include "wmiump.h"
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ULONG WmipCountedAnsiToCountedUnicode(
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PCHAR Ansi,
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PWCHAR Unicode
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)
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/*++
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Routine Description:
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Translate a counted ansi string into a counted unicode string.
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Conversion may be done inplace, that is Ansi == Unicode.
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Arguments:
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Ansi is the counted ansi string to convert to UNICODE
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Unicode is the buffer to place the converted string into
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Return Value:
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ERROR_SUCCESS or an error code
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--*/
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{
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PCHAR APtr;
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PWCHAR WPtr;
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ULONG AnsiSize, UnicodeSize;
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ULONG Status;
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AnsiSize = *((PUSHORT)Ansi);
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APtr = WmipAlloc(AnsiSize + 1);
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if (APtr != NULL)
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{
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memcpy(APtr, Ansi + sizeof(USHORT), AnsiSize);
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APtr[AnsiSize] = 0;
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WPtr = NULL;
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Status = AnsiToUnicode(APtr, &WPtr);
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if (Status == ERROR_SUCCESS)
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{
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UnicodeSize = (wcslen(WPtr)+1) * sizeof(WCHAR);
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*Unicode = (USHORT)UnicodeSize;
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memcpy(Unicode+1, WPtr, UnicodeSize);
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Status = ERROR_SUCCESS;
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WmipFree(WPtr);
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}
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WmipFree(APtr);
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} else {
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Status = ERROR_NOT_ENOUGH_MEMORY;
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}
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return(Status);
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}
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ULONG WmipCountedUnicodeToCountedAnsi(
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PWCHAR Unicode,
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PCHAR Ansi
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)
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/*++
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Routine Description:
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Translate a counted ansi string into a counted unicode string.
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Conversion may be done inplace, that is Ansi == Unicode.
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Arguments:
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Unicode is the counted unicode string to convert to ansi
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Ansi is the buffer to place the converted string into
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Return Value:
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ERROR_SUCCESS or an error code
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--*/
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{
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PCHAR APtr;
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PWCHAR WPtr;
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ULONG AnsiSize, UnicodeSize;
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ULONG Status;
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UnicodeSize = *Unicode;
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WPtr = WmipAlloc(UnicodeSize + sizeof(WCHAR));
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if (WPtr != NULL)
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{
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memcpy(WPtr, Unicode + 1, UnicodeSize);
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WPtr[UnicodeSize/sizeof(WCHAR)] = UNICODE_NULL;
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APtr = NULL;
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Status = UnicodeToAnsi(WPtr, &APtr, &AnsiSize);
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if (Status == ERROR_SUCCESS)
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{
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*((PUSHORT)Ansi) = (USHORT)AnsiSize;
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memcpy(Ansi+sizeof(USHORT), APtr, AnsiSize);
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Status = ERROR_SUCCESS;
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WmipFree(APtr);
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}
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WmipFree(WPtr);
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} else {
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Status = ERROR_NOT_ENOUGH_MEMORY;
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}
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return(Status);
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}
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ULONG WmipCopyStringToCountedUnicode(
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LPCWSTR String,
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PWCHAR CountedString,
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ULONG *BytesUsed,
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BOOLEAN ConvertFromAnsi
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)
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/*++
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Routine Description:
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This routine will copy an ansi ro unicode C string to a counted unicode
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string.
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Arguments:
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String is the ansi or unicode incoming string
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Counted string is a pointer to where to write counted unicode string
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*BytesUsed returns number of bytes used to build counted unicode string
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ConvertFromAnsi is TRUE if String is an ANSI string
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Return Value:
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ERROR_SUCCESS or an error code
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--*/
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{
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USHORT StringSize;
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PWCHAR StringPtr = CountedString+1;
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ULONG Status;
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if (ConvertFromAnsi)
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{
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StringSize = (strlen((PCHAR)String) +1) * sizeof(WCHAR);
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Status = AnsiToUnicode((PCHAR)String,
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&StringPtr);
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} else {
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StringSize = (wcslen(String) +1) * sizeof(WCHAR);
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wcscpy(StringPtr, String);
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Status = ERROR_SUCCESS;
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}
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*CountedString = StringSize;
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*BytesUsed = StringSize + sizeof(USHORT);
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return(Status);
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}
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