DBFCreateLL()

DBFHandle SHPAPI_CALL DBFCreateLL	(	const char *	pszDBFFile,
		const char *	pszCodePage,
		SAHooks *	psHooks
	)

Definition at line 679 of file dbfopen.c.

{
    DBFHandle   psDBF;
    SAFile      fp;
    char        *pszFullname;
    int         ldid = -1;
    char chZero = '\0';
    int         nLenWithoutExtension;
 
/* -------------------------------------------------------------------- */
/*      Compute the base (layer) name.  If there is any extension       */
/*      on the passed in filename we will strip it off.                 */
/* -------------------------------------------------------------------- */
    nLenWithoutExtension = DBFGetLenWithoutExtension(pszFilename);
    pszFullname = STATIC_CAST(char *, malloc(nLenWithoutExtension + 5));
    memcpy(pszFullname, pszFilename, nLenWithoutExtension);
    memcpy(pszFullname + nLenWithoutExtension, ".dbf", 5);
 
/* -------------------------------------------------------------------- */
/*      Create the file.                                                */
/* -------------------------------------------------------------------- */
    fp = psHooks->FOpen( pszFullname, "wb" );
    if( fp == SHPLIB_NULLPTR )
    {
        free( pszFullname );
        return SHPLIB_NULLPTR;
    }
 
    psHooks->FWrite( &chZero, 1, 1, fp );
    psHooks->FClose( fp );
 
    fp = psHooks->FOpen( pszFullname, "rb+" );
    if( fp == SHPLIB_NULLPTR )
    {
        free( pszFullname );
        return SHPLIB_NULLPTR;
    }
 
    memcpy(pszFullname + nLenWithoutExtension, ".cpg", 5);
    if( pszCodePage != SHPLIB_NULLPTR )
    {
        if( strncmp( pszCodePage, "LDID/", 5 ) == 0 )
        {
            ldid = atoi( pszCodePage + 5 );
            if( ldid > 255 )
                ldid = -1; // don't use 0 to indicate out of range as LDID/0 is a valid one
        }
        if( ldid < 0 )
        {
            SAFile fpCPG = psHooks->FOpen( pszFullname, "w" );
            psHooks->FWrite( CONST_CAST(void*, STATIC_CAST(const void*, pszCodePage)), strlen(pszCodePage), 1, fpCPG );
            psHooks->FClose( fpCPG );
        }
    }
    if( pszCodePage == SHPLIB_NULLPTR || ldid >= 0 )
    {
        psHooks->Remove( pszFullname );
    }
 
    free( pszFullname );
 
/* -------------------------------------------------------------------- */
/*      Create the info structure.                                      */
/* -------------------------------------------------------------------- */
    psDBF = STATIC_CAST(DBFHandle, calloc(1,sizeof(DBFInfo)));
 
    memcpy( &(psDBF->sHooks), psHooks, sizeof(SAHooks) );
    psDBF->fp = fp;
    psDBF->nRecords = 0;
    psDBF->nFields = 0;
    psDBF->nRecordLength = 1;
    psDBF->nHeaderLength = XBASE_FILEHDR_SZ + 1; /* + 1 for HEADER_RECORD_TERMINATOR */
 
    psDBF->panFieldOffset = SHPLIB_NULLPTR;
    psDBF->panFieldSize = SHPLIB_NULLPTR;
    psDBF->panFieldDecimals = SHPLIB_NULLPTR;
    psDBF->pachFieldType = SHPLIB_NULLPTR;
    psDBF->pszHeader = SHPLIB_NULLPTR;
 
    psDBF->nCurrentRecord = -1;
    psDBF->bCurrentRecordModified = FALSE;
    psDBF->pszCurrentRecord = SHPLIB_NULLPTR;
 
    psDBF->bNoHeader = TRUE;
 
    psDBF->iLanguageDriver = ldid > 0 ? ldid : 0;
    psDBF->pszCodePage = SHPLIB_NULLPTR;
    if( pszCodePage )
    {
        psDBF->pszCodePage = STATIC_CAST(char *, malloc( strlen(pszCodePage) + 1 ));
        strcpy( psDBF->pszCodePage, pszCodePage );
    }
    DBFSetLastModifiedDate(psDBF, 95, 7, 26); /* dummy date */
 
    DBFSetWriteEndOfFileChar(psDBF, TRUE);
 
    psDBF->bRequireNextWriteSeek = TRUE;
 
    return( psDBF );
}

References DBFInfo::bCurrentRecordModified, DBFInfo::bNoHeader, DBFInfo::bRequireNextWriteSeek, CONST_CAST, DBFGetLenWithoutExtension(), DBFSetLastModifiedDate(), DBFSetWriteEndOfFileChar(), FALSE, SAHooks::FClose, SAHooks::FOpen, DBFInfo::fp, free(), SAHooks::FWrite, DBFInfo::iLanguageDriver, malloc(), DBFInfo::nCurrentRecord, DBFInfo::nFields, DBFInfo::nHeaderLength, DBFInfo::nRecordLength, DBFInfo::nRecords, DBFInfo::pachFieldType, DBFInfo::panFieldDecimals, DBFInfo::panFieldOffset, DBFInfo::panFieldSize, DBFInfo::pszCodePage, DBFInfo::pszCurrentRecord, DBFInfo::pszHeader, SAHooks::Remove, DBFInfo::sHooks, SHPLIB_NULLPTR, STATIC_CAST, TRUE, and XBASE_FILEHDR_SZ.

Referenced by DBFCreateEx().

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