326 lines
7.8 KiB
C++
326 lines
7.8 KiB
C++
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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charconv.cxx
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Abstract:
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Single byte character conversion routines.
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Author:
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Donna Liu (DonnaLi) ??-???-19??
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Environment:
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This code should execute in all environments supported by RPC
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(DOS, Win 3.X, and Win/NT as well as OS2).
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Comments:
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The EBCDIC to ASCII data conversion will not be tested until we
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interoperate with some system which speaks EBCDIC.
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Revision history:
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... (long...)
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Dov Harel 04-24-1992 Added char_array_from_ndr.
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Dov Harel 04-24-1992 Fixed both _from_ndr to do EBCDIC => ASCII
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conversion. Changed the ebcdic_to_ascii
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table to "unsigned char" array type.
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Donna Liu 07-23-1992 Added LowerIndex parameter to
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<basetype>_array_from_ndr routines
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Dov Harel 08-19-1992 Added RpcpMemoryCopy ([_f]memcpy)
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to ..._array_from_ndr routines
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--*/
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#include <string.h>
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#include <sysinc.h>
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#include <rpc.h>
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#include <rpcdcep.h>
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#include <rpcndr.h>
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#include <ndrlibp.h>
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// Note this is the conversion from IBM 1047 EBCDIC codeset to ANSI 1252 code page.
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//
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// Also please see a comment in endian.c regarding disputable mapping involving
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// EBCDIC 0x15->0x0a and 0x25->0x85.
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//
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unsigned char ebcdic_to_ascii[] =
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{
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0x00, 0x01, 0x02, 0x03, 0x9c, 0x09, 0x86, 0x7f,
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0x97, 0x8d, 0x8e, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x9d, 0x0a, 0x08, 0x87,
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0x18, 0x19, 0x92, 0x8f, 0x1c, 0x1d, 0x1e, 0x1f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x17, 0x1b,
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x05, 0x06, 0x07,
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0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04,
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0x98, 0x99, 0x9a, 0x9b, 0x14, 0x15, 0x9e, 0x1a,
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0x20, 0xa0, 0xe2, 0xe4, 0xe0, 0xe1, 0xe3, 0xe5,
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0xe7, 0xf1, 0xa2, 0x2e, 0x3c, 0x28, 0x2b, 0x7c,
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0x26, 0xe9, 0xea, 0xeb, 0xe8, 0xed, 0xee, 0xef,
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0xec, 0xdf, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x5e,
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0x2d, 0x2f, 0xc2, 0xc4, 0xc0, 0xc1, 0xc3, 0xc5,
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0xc7, 0xd1, 0xa6, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
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0xf8, 0xc9, 0xca, 0xcb, 0xc8, 0xcd, 0xce, 0xcf,
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0xcc, 0x60, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22,
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0xd8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0xab, 0xbb, 0xf0, 0xfd, 0xfe, 0xb1,
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0xb0, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
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0x71, 0x72, 0xaa, 0xba, 0xe6, 0xb8, 0xc6, 0xa4,
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0xb5, 0x7e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
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0x79, 0x7a, 0xa1, 0xbf, 0xd0, 0x5b, 0xde, 0xae,
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0xac, 0xa3, 0xa5, 0xb7, 0xa9, 0xa7, 0xb6, 0xbc,
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0xbd, 0xbe, 0xdd, 0xa8, 0xaf, 0x5d, 0xb4, 0xd7,
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0x7b, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
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0x48, 0x49, 0xad, 0xf4, 0xf6, 0xf2, 0xf3, 0xf5,
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0x7d, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
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0x51, 0x52, 0xb9, 0xfb, 0xfc, 0xf9, 0xfa, 0xff,
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0x5c, 0xf7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
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0x59, 0x5a, 0xb2, 0xd4, 0xd6, 0xd2, 0xd3, 0xd5,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0xb3, 0xdb, 0xdc, 0xd9, 0xda, 0x9f
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};
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#if !defined(DOS) || defined(WIN)
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//
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// Due to the DOS NDR1/NDR2 split, this function is now defined for DOS
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// in ndr20\dos
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//
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size_t RPC_ENTRY
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MIDL_wchar_strlen (
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IN wchar_t s[]
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)
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{
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size_t i = 0;
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while (s[i] != (wchar_t)0)
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{
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++i;
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}
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return i;
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}
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#endif
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void RPC_ENTRY
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MIDL_wchar_strcpy (
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OUT void * t,
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IN wchar_t * s
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)
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{
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while ( *(*(wchar_t **)&t)++ = *s++ )
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;
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}
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void RPC_ENTRY
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char_from_ndr (
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IN OUT PRPC_MESSAGE SourceMessage,
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OUT unsigned char * Target
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)
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/*++
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Routine Description:
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Unmarshall a single char from an RPC message buffer into
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the target (*Target). This routine:
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o Unmarshalls the char (as unsigned char); performs data
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conversion if necessary, and
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o Advances the buffer pointer to the address immediately
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following the unmarshalled char.
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Arguments:
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SourceMessage - A pointer to an RPC_MESSAGE.
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IN - SourceMessage->Buffer points to the address just prior to
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the char to be unmarshalled.
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OUT - SourceMessage->Buffer points to the address just following
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the char which was just unmarshalled.
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Target - A pointer to the char to unmarshall the data into.
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Return Values:
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None.
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--*/
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{
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if ( (SourceMessage->DataRepresentation & NDR_CHAR_REP_MASK) ==
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NDR_EBCDIC_CHAR )
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{
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//
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// The sender is an EBCDIC system. To convert to ASCII:
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// retrieve *(SourceMessage->Buffer) as an unsigned char, and use
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// that value to index into the ebcdic_to_ascii table.
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//
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*Target = ebcdic_to_ascii[*(unsigned char *)SourceMessage->Buffer];
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}
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else
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{
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//
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// The sender is an ASCII system. To unmarshall, just
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// copy an unsigned character from the buffer to the Target.
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//
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*Target = *(unsigned char *)SourceMessage->Buffer;
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}
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//
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// Advance the buffer pointer before returning
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//
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(*(unsigned char**)&SourceMessage->Buffer)++;
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}
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//
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// end char_from_ndr
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//
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void RPC_ENTRY
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char_array_from_ndr (
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IN OUT PRPC_MESSAGE SourceMessage,
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IN unsigned long LowerIndex,
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IN unsigned long UpperIndex,
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OUT unsigned char Target[]
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)
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/*++
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Routine Description:
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Unmarshall an array of chars from an RPC message buffer into
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the range Target[LowerIndex] .. Target[UpperIndex-1] of the
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target array of shorts (Target[]). This routine:
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o Unmarshalls MemberCount chars; performs data
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conversion if necessary, and
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o Advances the buffer pointer to the address immediately
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following the last unmarshalled char.
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Arguments:
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SourceMessage - A pointer to an RPC_MESSAGE.
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IN - SourceMessage->Buffer points to the address just prior to
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the first char to be unmarshalled.
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OUT - SourceMessage->Buffer points to the address just following
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the last char which was just unmarshalled.
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LowerIndex - Lower index into the target array.
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UpperIndex - Upper bound index into the target array.
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Target - An array of chars to unmarshall the data into.
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Return Values:
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None.
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--*/
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{
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register unsigned char * MsgBuffer = (unsigned char *)SourceMessage->Buffer;
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unsigned int Index;
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int byteCount = (int)(UpperIndex - LowerIndex);
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if ( (SourceMessage->DataRepresentation & NDR_CHAR_REP_MASK) ==
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NDR_EBCDIC_CHAR )
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{
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for (Index = (int)LowerIndex; Index < UpperIndex; Index++)
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{
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//
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// The sender is an EBCDIC system. To convert to ASCII:
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// retrieve *(SourceMessage->Buffer) as an unsigned char, and use
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// that value to Index into the ebcdic_to_ascii table.
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//
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Target[Index] =
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ebcdic_to_ascii[ MsgBuffer[(Index-LowerIndex)] ];
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}
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}
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else
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{
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RpcpMemoryCopy(
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&Target[LowerIndex],
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MsgBuffer,
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byteCount
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);
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/* Replaced by RpcpMemoryCopy:
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for (Index = LowerIndex; Index < UpperIndex; Index++)
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{
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//
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// The sender is an ASCII system. To unmarshall, just
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// copy an unsigned character from the buffer to the Target.
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//
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Target[Index] = MsgBuffer[(Index-LowerIndex)];
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}
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*/
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}
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//
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// Advance the buffer pointer before returning
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//
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*(unsigned char **)&SourceMessage->Buffer += byteCount;
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}
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//
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// end char_array_from_ndr
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//
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/*
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//
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// Changed name to ..._bytecount. Not currently used.
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//
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int MIDL_wchar_bytecount (
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unsigned char s[]
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)
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{
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int i = 0;
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while (s[2*i] || s[2*i+1]) ++i;
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return i;
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}
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*/
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