DBFWriteHeader()

static void DBFWriteHeader ( DBFHandle  psDBF )

static

Definition at line 127 of file dbfopen.c.

{
    unsigned char       abyHeader[XBASE_FILEHDR_SZ] = { 0 };
 
    if( !psDBF->bNoHeader )
        return;
 
    psDBF->bNoHeader = FALSE;
 
/* -------------------------------------------------------------------- */
/*      Initialize the file header information.                         */
/* -------------------------------------------------------------------- */
    abyHeader[0] = 0x03;                /* memo field? - just copying   */
 
    /* write out update date */
    abyHeader[1] = STATIC_CAST(unsigned char, psDBF->nUpdateYearSince1900);
    abyHeader[2] = STATIC_CAST(unsigned char, psDBF->nUpdateMonth);
    abyHeader[3] = STATIC_CAST(unsigned char, psDBF->nUpdateDay);
 
    /* record count preset at zero */
 
    abyHeader[8] = STATIC_CAST(unsigned char, psDBF->nHeaderLength % 256);
    abyHeader[9] = STATIC_CAST(unsigned char, psDBF->nHeaderLength / 256);
 
    abyHeader[10] = STATIC_CAST(unsigned char, psDBF->nRecordLength % 256);
    abyHeader[11] = STATIC_CAST(unsigned char, psDBF->nRecordLength / 256);
 
    abyHeader[29] = STATIC_CAST(unsigned char, psDBF->iLanguageDriver);
 
/* -------------------------------------------------------------------- */
/*      Write the initial 32 byte file header, and all the field        */
/*      descriptions.                                                   */
/* -------------------------------------------------------------------- */
    psDBF->sHooks.FSeek( psDBF->fp, 0, 0 );
    psDBF->sHooks.FWrite( abyHeader, XBASE_FILEHDR_SZ, 1, psDBF->fp );
    psDBF->sHooks.FWrite( psDBF->pszHeader, XBASE_FLDHDR_SZ, psDBF->nFields,
                          psDBF->fp );
 
/* -------------------------------------------------------------------- */
/*      Write out the newline character if there is room for it.        */
/* -------------------------------------------------------------------- */
    if( psDBF->nHeaderLength > XBASE_FLDHDR_SZ*psDBF->nFields +
                               XBASE_FLDHDR_SZ )
    {
        char    cNewline;
 
        cNewline = HEADER_RECORD_TERMINATOR;
        psDBF->sHooks.FWrite( &cNewline, 1, 1, psDBF->fp );
    }
 
/* -------------------------------------------------------------------- */
/*      If the file is new, add a EOF character.                        */
/* -------------------------------------------------------------------- */
    if( psDBF->nRecords == 0 && psDBF->bWriteEndOfFileChar )
    {
        char ch = END_OF_FILE_CHARACTER;
 
        psDBF->sHooks.FWrite( &ch, 1, 1, psDBF->fp );
    }
}

References DBFInfo::bNoHeader, DBFInfo::bWriteEndOfFileChar, END_OF_FILE_CHARACTER, FALSE, DBFInfo::fp, SAHooks::FSeek, SAHooks::FWrite, HEADER_RECORD_TERMINATOR, DBFInfo::iLanguageDriver, DBFInfo::nFields, DBFInfo::nHeaderLength, DBFInfo::nRecordLength, DBFInfo::nRecords, DBFInfo::nUpdateDay, DBFInfo::nUpdateMonth, DBFInfo::nUpdateYearSince1900, DBFInfo::pszHeader, DBFInfo::sHooks, STATIC_CAST, XBASE_FILEHDR_SZ, and XBASE_FLDHDR_SZ.

Referenced by DBFCloneEmpty(), DBFClose(), DBFUpdateHeader(), DBFWriteAttribute(), DBFWriteAttributeDirectly(), and DBFWriteTuple().

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