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/* $Id: $ */
/* Copyright (C) 1997 Sverre Hvammen Johansen,
* Department of Informatics, University of Oslo.
*
* 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; version 2.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "file.h"
#include "simfile.h"
/******************************************************************************
PROCEDURE INIMAGE */
__dhp
__rdinimage (p)
__bs5FILE *p;
{
char *c,
c1,
d;
long i,
l;
FILE *f;
if (!((__bs1FILE *) p)->open)
__rerror ("Inimage: File not open");
if (((__bs2FILE *) p)->IMAGE.obj == __NULL)
__rerror ("Inimage: IMAGE equals notext");
if (((__bs2FILE *) p)->IMAGE.obj->h.konstant)
__rerror ("Inimage: IMAGE is a constant text object");
if (p->writeonly)
__rerror ("Inimage: Writeonly file");
if (((__bs5FILE *) p)->imagelength != ((__bs2FILE *) p)->IMAGE.length)
__rerror ("Inimage: Illegal length of IMAGE");
((__bs2FILE *) p)->IMAGE.pos = 1;
c = &((__bs2FILE *) p)->IMAGE.obj->string[((__bs2FILE *) p)
->IMAGE.start - 1];
l = ((__bs5FILE *) p)->imagelength;
f = ((__bs1FILE *) p)->file;
if (((__bs5FILE *) p)->endfile = (((__bs5FILE *) p)->loc > __rdlastloc (p)))
{
*(c++) = 25;
for (i = 2; i <= l; i++)
*(c++) = ' ';
}
else
{
if (p->lastop == __WRITE
&& fseek (((__bs1FILE *) p)->file, 0L, 1) == __EOF)
__rerror ("Inimage: Not possible to seek");
p->lastop = __READ;
d = '\0';
for (i = 1; i <= l; i++)
{
if ((c1 = getc (f)) == __EOF)
{
__rerror ("Inimage: Read error");
break;
}
if ((*(c++) = c1) != '\0')
d = '\n';
}
if ((c1 = getc (f)) != '\n' && c1 != d)
__rerror ("Inimage: Read error");
p->loc++;
}
return ((__dhp) p);
}
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