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// File Name: pc2unix.c
// Owner: Tetsuhide Akaishi
// Revision: 1.00 02/21/'93 Tetsuhide Akaishi
//
#include "pch_c.h"
#include "fechrcnv.h"
int FE_PC_to_UNIX (CONV_CONTEXT *pcontext, int CodePage, int CodeSet, UCHAR *pPCChar, int PCChar_len, UCHAR *pUNIXChar, int UNIXChar_len )// The FE_PC_to_UNIX function convert a character string as PC code
// set string to a Japanese UNIX code set string.
//
//
// int CodeSet Code Set Type.
// There are three Japanese Code set in UNIX world.
// These code sets are JIS, EUC and Shift JIS.
// When CodePage is Japanese, the following Code set
// constants are defined:
//
// Value Meaning
// CODE_JPN_JIS JIS Code Set. The function convert
// pPCChar string
// to a JIS code set string.
// CODE_JPN_EUC EUC Code Set. The function convert
// pPCChar string
// to a EUC code set string.
// CODE_JPN_SJIS Shift JIS Code Set.
//
// UCHAR *pPCChar Points to the character string to be converted.
//
// int PCChar_len Specifies the size in bytes of the string pointed
// to by the pPCChar parameter. If this value is -1,
// the string is assumed to be NULL terminated and the
// length is calculated automatically.
//
//
// UCHAR *pUNIXChar Points to a buffer that receives the convert string
// from PC Code to UNIX Code.
//
// int UNIXChar_len Specifies the size, in UNIX characters of the buffer
// pointed to by the pUNIXChar parameter. If the value is
// zero, the function returns the number of UNIX characters
// required for the buffer, and makes no use of the
// pUNIXChar buffer.
//
// Return Value
// If the function succeeds, and UNIXChar_len is nonzero, the return value is
// the number of UNIX characters written to the buffer pointed to by pUNIXChar.
//
// If the function succeeds, and UNIXChar_len is zero, the return value is the
// required size, in UNIX characters, for a buffer that can receive the
// converted string.
//
// If the function fails, the return value is -1. The error mean pUNIXChar
// buffer is small for setting converted strings.
//
//@
{ int re;
switch ( CodeSet ) { default: case CODE_JPN_JIS: // Japanese JIS Code
// Convert from Shift JIS to JIS
if (pPCChar) { re = ShiftJIS_to_JIS ( pPCChar, PCChar_len, pUNIXChar, UNIXChar_len ); } else { re = 0; } break; case CODE_JPN_EUC: // Japanese EUC Code
// Convert from Shift JIS to EUC
if (pPCChar) { re = ShiftJIS_to_EUC ( pPCChar, PCChar_len, pUNIXChar, UNIXChar_len ); } else { re = 0; } break; case CODE_KRN_KSC: // Korean KSC
// Convert from Hangeul to KSC
re = Hangeul_to_KSC ( pcontext, pPCChar, PCChar_len, pUNIXChar, UNIXChar_len ); break; case CODE_PRC_HZGB: // PRC HZ-GB
// Convert from GB2312 to HZ-GB
re = GB2312_to_HZGB ( pcontext, pPCChar, PCChar_len, pUNIXChar, UNIXChar_len ); break; case CODE_JPN_SJIS: // Japanese Shift JIS Code
case CODE_KRN_UHC: // Korean UHC
case CODE_PRC_CNGB: // PRC CN-GB
case CODE_TWN_BIG5: // Taiwanese BIG5
// Convert from Shift JIS to Shift JIS
if (pPCChar) { if ( PCChar_len == -1 ) { PCChar_len = strlen ( pPCChar ) + 1; } if ( UNIXChar_len != 0 ) { if ( PCChar_len > UNIXChar_len ) { // Is the buffer small?
return ( -1 ); } // Copy from pPCChar to pUNIXChar
memmove ( pUNIXChar, pPCChar, PCChar_len ); } re = PCChar_len; } else { re = 0; } break; } return ( re );}
int WINAPI PC_to_UNIX (CONV_CONTEXT *pcontext, int CodePage, int CodeSet, UCHAR *pPCChar, int PCChar_len, UCHAR *pUNIXChar, int UNIXChar_len )
// The PC_to_UNIX function convert a character string as PC code
// set string to a UNIX code set string.
//
// int CodePage Country Code Page.
// If this value is -1, the function use OS CodePage from
// Operating System automatically.
//
// Value Meaning
// -1 Auto Detect Mode.
// 932 Japan.
// ??? Taiwan.
// ??? Korea.
// ??? PRC(Chaina)?
//
// int CodeSet Code Set Type.
// There are three Japanese Code set in UNIX world.
// These code sets are JIS, EUC and Shift JIS.
// When CodePage is Japanese, the following Code set
// constants are defined:
//
// Value Meaning
// CODE_JPN_JIS JIS Code Set. The function convert
// pPCChar string
// to a JIS code set string.
// CODE_JPN_EUC EUC Code Set. The function convert
// pPCChar string
// to a EUC code set string.
// CODE_JPN_SJIS Shift JIS Code Set.
//
// UCHAR *pPCChar Points to the character string to be converted.
//
// int PCChar_len Specifies the size in bytes of the string pointed
// to by the pPCChar parameter. If this value is -1,
// the string is assumed to be NULL terminated and the
// length is calculated automatically.
//
//
// UCHAR *pUNIXChar Points to a buffer that receives the convert string
// from PC Code to UNIX Code.
//
// int UNIXChar_len Specifies the size, in UNIX characters of the buffer
// pointed to by the pUNIXChar parameter. If the value is
// zero, the function returns the number of UNIX characters
// required for the buffer, and makes no use of the
// pUNIXChar buffer.
//
// Return Value
// If the function succeeds, and UNIXChar_len is nonzero, the return value is
// the number of UNIX characters written to the buffer pointed to by pUNIXChar.
//
// If the function succeeds, and UNIXChar_len is zero, the return value is the
// required size, in UNIX characters, for a buffer that can receive the
// converted string.
//
// If the function fails, the return value is -1. The error mean pUNIXChar
// buffer is small for setting converted strings.
//
//@
{ int re;
if ( CodePage == -1 ) { CodePage = (int)GetOEMCP(); } switch ( CodePage ) { case 932: // Japanese Code Page
case 950: // Taiwan Code Page
case 949: // Korea Code Page
case 936: // PRC Code Page
re = FE_PC_to_UNIX (pcontext, CodePage, CodeSet, pPCChar, PCChar_len, pUNIXChar, UNIXChar_len ); break; default: // Start Only Copy Process
if ( PCChar_len == -1 ) { PCChar_len = strlen ( pPCChar ) + 1; } if ( UNIXChar_len != 0 ) { if ( PCChar_len > UNIXChar_len ) { // Is the buffer small?
return ( -1 ); } memmove ( pUNIXChar, pPCChar, PCChar_len ); } re = PCChar_len; break; } return ( re );}
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