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