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/**
Copyright (C) 1995, 1996 by Ke Jin <kejin@visigenic.com>
Enhanced for unixODBC (1999) by Peter Harvey <pharvey@codebydesign.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
**/
#include <config.h>
#include "driver.h"
RETCODE SQL_API SQLFetch( HSTMT hstmt )
{
stmt_t* pstmt = hstmt;
column_t* pcol = pstmt->pcol;
int ncol, i;
long len, clen;
char* ptr;
int sqltype, sqlstat, dft_ctype, flag = 0, err;
fptr_t cvt;
char* ret;
UNSET_ERROR( pstmt->herr );
ncol = nnsql_getcolnum(pstmt->yystmt);
if ( !pstmt->refetch && (err = nnsql_fetch(pstmt->yystmt)) )
{
int code;
if ( err == 100 )
return SQL_NO_DATA_FOUND;
code = nnsql_errcode(pstmt->yystmt);
if ( code == -1 )
code = errno;
PUSHSYSERR( pstmt->herr, code, nnsql_errmsg(pstmt->yystmt));
return SQL_ERROR;
}
if ( !pcol )
{
int max;
max = nnsql_max_column();
pcol = pstmt->pcol = (column_t*)MEM_ALLOC( sizeof(column_t)*(max+1) );
if ( ! pcol )
{
PUSHSQLERR( pstmt->herr, en_S1001 );
return SQL_ERROR;
}
MEM_SET(pcol, 0, sizeof(column_t)*(max+1) );
return SQL_SUCCESS;
}
for (i=0;i<ncol;i++, pcol++)
{
len = clen = 0L;
pcol->offset = 0;
if ( ! pcol->userbuf )
continue;
if ( nnsql_isnullcol(pstmt->yystmt, i) )
{
if ( pcol->pdatalen )
*(pcol->pdatalen) = SQL_NULL_DATA;
continue;
}
if ( pcol->pdatalen )
*(pcol->pdatalen ) = 0L;
if ( nnsql_isstrcol(pstmt->yystmt, i) )
{
ptr = nnsql_getstr(pstmt->yystmt, i);
len = STRLEN(ptr) + 1;
sqltype = SQL_CHAR;
dft_ctype = SQL_C_CHAR;
}
else if ( nnsql_isnumcol(pstmt->yystmt, i) )
{
ptr = (char*)nnsql_getnum(pstmt->yystmt, i);
sqltype = SQL_INTEGER;
dft_ctype = SQL_C_LONG;
}
else if ( nnsql_isdatecol(pstmt->yystmt, i) )
{
ptr = (char*)nnsql_getdate(pstmt->yystmt, i);
sqltype = SQL_DATE;
dft_ctype = SQL_C_DATE;
}
else
abort();
if ( pcol->ctype == SQL_C_DEFAULT )
pcol->ctype = dft_ctype;
cvt = nnodbc_get_sql2c_cvt(sqltype, pcol->ctype);
if ( ! cvt )
{
pstmt->refetch = 1;
PUSHSQLERR(pstmt->herr, en_07006);
return SQL_ERROR;
}
ret = cvt( ptr, pcol->userbuf, pcol->userbufsize, &clen);
if ( ret )
{
pstmt->refetch = 1;
if ( clen )
sqlstat = en_22003;
else
sqlstat = en_22005;
PUSHSQLERR( pstmt->herr, sqlstat );
return SQL_ERROR;
}
if ( len && clen == len )
flag = 1;
if ( len && pcol->pdatalen )
*(pcol->pdatalen) = clen; /* not 'len' but 'clen' */
}
if ( flag )
{
PUSHSQLERR( pstmt->herr, en_01004 );
return SQL_SUCCESS_WITH_INFO;
}
return SQL_SUCCESS;
}
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