diff options
Diffstat (limited to 'i386/dos/dos_unlink.c')
| -rw-r--r-- | i386/dos/dos_unlink.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/i386/dos/dos_unlink.c b/i386/dos/dos_unlink.c new file mode 100644 index 00000000..cb169bbd --- /dev/null +++ b/i386/dos/dos_unlink.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 1995-1994 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Bryan Ford, University of Utah CSL + */ + +#include <unistd.h> +#include <errno.h> + +#include "dos_io.h" +#include "vm_param.h" + +int dos_unlink(const char *filename) +{ + struct real_call_data real_call_data; + vm_offset_t dos_buf_phys = (vm_offset_t)kvtophys(dos_buf); + + dos_init_rcd(&real_call_data); + + if (strlen(filename)+1 > DOS_BUF_SIZE) + return E2BIG; + strcpy(dos_buf, filename); + + real_call_data.eax = 0x4100; + real_call_data.ds = dos_buf_phys >> 4; + real_call_data.edx = dos_buf_phys & 15; + real_int(0x21, &real_call_data); + + return dos_check_err(&real_call_data); +} + |