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Added support for regular files with int 21 ax =4406 (get input status)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1166
This commit is contained in:
Peter Veenstra 2003-07-27 12:12:05 +00:00
parent dc824945f5
commit 359e55ed8c
1 changed files with 15 additions and 3 deletions
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18
src/dos/dos_ioctl.cpp
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@ -16,6 +16,8 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_ioctl.cpp,v 1.12 2003-07-27 12:12:05 qbix79 Exp $ */
#include <string.h>
#include "dosbox.h"
#include "callback.h"
@ -43,9 +45,19 @@ bool DOS_IOCTL(void) {
case 0x06: /* Get Input Status */
if (Files[handle]->GetInformation() & 0x8000) { //Check for device
reg_al=(Files[handle]->GetInformation() & 0x40) ? 0xff : 0;
} else {
LOG(LOG_IOCTL,LOG_NORMAL)("06:Unsupported File handle %d",handle);
reg_al=0xff;
} else { // FILE
Bit32u oldlocation=0;
Files[handle]->Seek(&oldlocation, DOS_SEEK_CUR);
Bit32u endlocation=0;
Files[handle]->Seek(&endlocation, DOS_SEEK_END);
if(oldlocation < endlocation){//Still data available
reg_al=0x0;
} else
{
reg_al=0xff; //EOF or beyond
}
Files[handle]->Seek(&oldlocation, DOS_SEEK_SET); //restore filelocation
LOG(LOG_IOCTL,LOG_NORMAL)("06:Used Get Input Status on regualar file with handle %d",handle);
}
return true;
case 0x07: /* Get Output Status */