diff options
Diffstat (limited to 'i386/dos/dos_rename.c')
-rw-r--r-- | i386/dos/dos_rename.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/i386/dos/dos_rename.c b/i386/dos/dos_rename.c deleted file mode 100644 index e780ba4..0000000 --- a/i386/dos/dos_rename.c +++ /dev/null @@ -1,80 +0,0 @@ -/* - * 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_rename(const char *oldpath, const char *newpath) -{ - /* This function isn't fully atomic like on Unix, - but it's as close as I know how to do under DOS. */ - - struct real_call_data real_call_data; - vm_offset_t dos_buf_phys = (vm_offset_t)kvtophys(dos_buf); - int err; - - dos_init_rcd(&real_call_data); - - /* Put the oldpath in the first half of dos_buf, - and the newpath in the second half. */ - if ((strlen(oldpath)+1 > DOS_BUF_SIZE/2) - || (strlen(newpath)+1 > DOS_BUF_SIZE/2)) - { errno = E2BIG; return -1; } - strcpy(dos_buf, oldpath); - strcpy(dos_buf+DOS_BUF_SIZE/2, newpath); - - /* Try once to rename the file. */ - real_call_data.eax = 0x5600; - real_call_data.ds = dos_buf_phys >> 4; - real_call_data.edx = dos_buf_phys & 15; - real_call_data.es = dos_buf_phys >> 4; - real_call_data.edi = (dos_buf_phys & 15) + DOS_BUF_SIZE/2; - real_int(0x21, &real_call_data); - - /* If that failed, delete newpath and then retry the rename. - We _hope_ the failure was because newpath already existed; - the DOS error codes I'm getting back seem to be bogus. */ - if (err = dos_check_err(&real_call_data)) - { - real_call_data.eax = 0x4100; - real_call_data.ds = dos_buf_phys >> 4; - real_call_data.edx = (dos_buf_phys & 15) + DOS_BUF_SIZE/2; - real_int(0x21, &real_call_data); - if (err = dos_check_err(&real_call_data)) - return err; - - real_call_data.eax = 0x5600; - real_call_data.ds = dos_buf_phys >> 4; - real_call_data.edx = dos_buf_phys & 15; - real_call_data.es = dos_buf_phys >> 4; - real_call_data.edi = (dos_buf_phys & 15) + DOS_BUF_SIZE/2; - real_int(0x21, &real_call_data); - err = dos_check_err(&real_call_data); - } - - return err; -} - |