freebsd-nq/release/sysinstall/dos.c
Jordan K. Hubbard 2113a60c4b Bring this into sync.
I still have a _very very annoying_ display bug which occurs when a menu
item causes a submenu to be displayed - the screen repaints for the original
menu (which is restored upon return from the submenu) are off by about 4
characters.  I've tried restoring the screen, the cursor position, you name
it - same deal.  Grrrr!  This commit is my first step in trying to get someone
else to help me look into this one since I'm just tearing my hair out at this
point!
1996-04-23 01:29:35 +00:00

112 lines
3.4 KiB
C

/*
* The new sysinstall program.
*
* This is probably the last attempt in the `sysinstall' line, the next
* generation being slated to essentially a complete rewrite.
*
* $Id: dos.c,v 1.10 1996/04/13 13:31:33 jkh Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
* Copyright (c) 1995
* Gary J Palmer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* verbatim and that no modifications are made prior to this
* point in the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include "sysinstall.h"
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
#include <grp.h>
#define MSDOSFS
#include <sys/mount.h>
#undef MSDOSFS
static Boolean DOSMounted;
Boolean
mediaInitDOS(Device *dev)
{
struct msdosfs_args args;
if (!RunningAsInit || DOSMounted)
return TRUE;
if (Mkdir("/dos", NULL) != DITEM_SUCCESS)
return FALSE;
memset(&args, 0, sizeof(args));
args.fspec = dev->devname;
args.uid = args.gid = 0;
args.mask = 0777;
if (mount(MOUNT_MSDOS, "/dos", MNT_RDONLY, (caddr_t)&args) == -1) {
msgConfirm("Error mounting %s on /dos: %s (%u)", args.fspec, strerror(errno), errno);
return FALSE;
}
else
msgDebug("Mounted DOS device (%s) on /dos.\n", args.fspec);
DOSMounted = TRUE;
return TRUE;
}
int
mediaGetDOS(Device *dev, char *file, Boolean probe)
{
char buf[PATH_MAX];
msgDebug("Request for %s from DOS\n", file);
snprintf(buf, PATH_MAX, "/dos/freebsd/%s", file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/dos/freebsd/dists/%s", file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/dos/%s", file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/dos/dists/%s", file);
return open(buf, O_RDONLY);
}
void
mediaShutdownDOS(Device *dev)
{
if (!RunningAsInit || !DOSMounted)
return;
msgDebug("Unmounting %s from /dos\n", dev->name);
if (unmount("/dos", MNT_FORCE) != 0)
msgConfirm("Could not unmount the DOS partition: %s", strerror(errno));
if (isDebug())
msgDebug("Unmount successful\n");
DOSMounted = FALSE;
return;
}