/* @(#)sql__intr.c		2.1.1  2001-01-15  14:07 SAP DB */
/*


    ========== licence begin  GPL
    Copyright (c) 2000-2005 SAP AG

    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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
    ========== licence end




 */

#include <errno.h>

#if defined ( __PTOCLIB__ )
# include "h00vars.h"   /* nocheck */
# include "libpc.h"     /* nocheck */
#else
# include "libptc/libpc.h"
# include "libptc/h00vars.h"
#endif

extern char sql__readbf [];             /* sql__readbf is defined in sql__sync.c */

long
sql__intr(struct iorec   *curfile)
{
        long                    data;
        int                     retval;

/**
        if (curfile->funit & FWRITE) {
                sql__perrorp("%s: Attempt to read, but open for writing\n",
                        (long) curfile->pfname , 0L );
                return ( (long)-1 );
        }
 **/
        sql__uncs(curfile);
        errno = 0;
        retval = fscanf(curfile->fbuf, "%ld", &data);
        if (retval == EOF) {
                sql__perrorp (sql__readbf, (_ptoc_long) curfile->pfname, 0L );
                                /* %s: Tried to read past end of file */
                /*NOTREACHED*/
        }
        if (retval == 0) {
                sql__perrorp("%s: Bad data found on integer read\n",
                        (_ptoc_long) curfile->pfname, 0L );
                /*NOTREACHED*/
        }
        if (errno == ERANGE) {
                sql__perrorp("%s: Overflow on integer read\n",
                        (_ptoc_long) curfile->pfname, 0L );
                /*NOTREACHED*/
        }
        if (errno != 0) {
                sql__peer("sql__intr", curfile->pfname);
                /*NOTREACHED*/
                return ( (long)-1 );
        }
        curfile->funit &= ~EOLN;
        curfile->funit |= SYNC;
        return data;
}
