Initial source

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 0000000..cb169bb
--- /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);
+}
+