143 lines
3.9 KiB
C
143 lines
3.9 KiB
C
/*++
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Copyright (c) 1987-1992 Microsoft Corporation
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Module Name:
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FieldSiz.c
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Abstract:
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RAP (remote admin protocol) utility code.
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Author:
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John Rogers (JohnRo) 05-Mar-1991
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Environment:
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Portable to any flat, 32-bit environment. (Uses Win32 typedefs.)
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Requires ANSI C extensions: slash-slash comments, long external names.
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Revision History:
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(various NBU people)
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LanMan 2.x code
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05-Mar-1991 JohnRo
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Created portable version from LanMan 2.x sources.
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14-Apr-1991 JohnRo
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Reduce recompiles. Got rid of tabs in source file, per NT standards.
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17-Apr-1991 JohnRo
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Added support for REM_IGNORE.
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Added debug msg when unexpected desc char found.
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07-Sep-1991 JohnRo
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Move toward possibility of descs being in UNICODE.
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21-Nov-1991 JohnRo
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Removed NT dependencies to reduce recompiles.
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16-Aug-1992 JohnRo
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RAID 2920: Support UTC timezone in net code.
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Use PREFIX_ equates.
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--*/
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// These must be included first:
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#include <windef.h> // IN, LPDWORD, NULL, OPTIONAL, DWORD, etc.
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#include <lmcons.h> // NET_API_STATUS
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// These may be included in any order:
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#include <netdebug.h> // NetpBreakPoint().
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#include <prefix.h> // PREFIX_ equates.
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#include <rap.h> // My prototype, FORMAT_LPDESC_CHAR, LPDESC.
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#include <remtypes.h> // REM_WORD, etc.
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DWORD
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RapGetFieldSize(
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IN LPDESC TypePointer,
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IN OUT LPDESC * TypePointerAddress,
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IN RAP_TRANSMISSION_MODE TransmissionMode
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)
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/*++
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Routine Description:
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RapGetFieldSize gets the length of a field described by a type descriptor
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element. It calculates the length of an field described by an element of
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a descriptor string and updates the descriptor string pointer to point
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to the last char in the element of the descriptor string.
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Arguments:
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TypePointer - Points to first character in the descriptor element to be
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processed.
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TypePointerAddress - The address of the pointer passed as TypePointer. On
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exit, *TypePointerAddress points to last character in descriptor
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element.
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Transmission Mode - Indicates whether this array is part of a response,
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a request, or both.
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Return Value:
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Length in bytes of the field described by the descriptor string element.
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--*/
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{
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DESC_CHAR c;
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c = *TypePointer; /* Get descriptor type char */
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if ( (RapIsPointer(c)) || (c == REM_NULL_PTR) ) { // All pointers same size.
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while ( ++TypePointer, DESC_CHAR_IS_DIGIT( *TypePointer ) ) {
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(*TypePointerAddress)++; /* Move ptr to end of field size */
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}
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return (sizeof(LPVOID));
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}
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// Here if descriptor was not a pointer type so have to find the field
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// length specifically.
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switch ( c ) {
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case (REM_WORD):
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case (REM_BYTE):
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case (REM_DWORD):
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case (REM_SIGNED_DWORD):
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return (RapArrayLength(TypePointer,
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TypePointerAddress,
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TransmissionMode));
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case (REM_AUX_NUM):
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case (REM_PARMNUM):
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case (REM_RCV_BUF_LEN):
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case (REM_SEND_BUF_LEN):
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return (sizeof(unsigned short));
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case (REM_DATA_BLOCK):
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return (0); /* No structure for this */
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case (REM_DATE_TIME):
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case (REM_AUX_NUM_DWORD):
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return (sizeof(unsigned long));
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case (REM_IGNORE):
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return (0);
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case REM_EPOCH_TIME_GMT: /*FALLTHROUGH*/
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case REM_EPOCH_TIME_LOCAL:
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return (sizeof(DWORD));
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default:
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NetpKdPrint(( PREFIX_NETRAP
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"RapGetFieldSize: unexpected desc '" FORMAT_LPDESC_CHAR
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"'.\n", c));
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NetpBreakPoint();
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return (0);
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}
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/*NOTREACHED*/
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} // RapGetFieldSize
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