freebsd-src/release/sysinstall/dos.c
1997-02-22 14:13:04 +00:00

107 lines
3.2 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.
*
* $Id$
*
* 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>
#include "dosio.h"
static DOS_FS DOSFS;
static Boolean DOSMounted;
Boolean
mediaInitDOS(Device *dev)
{
if (!RunningAsInit || DOSMounted)
return TRUE;
if (dos_mount(&DOSFS, dev->devname)) {
msgConfirm("Error mounting DOS partition %s : %s (%u)", dev->devname, strerror(errno), errno);
return FALSE;
}
DOSMounted = TRUE;
msgDebug("DOS partition %s mounted\n", dev->devname);
return TRUE;
}
FILE *
mediaGetDOS(Device *dev, char *file, Boolean probe)
{
char buf[PATH_MAX];
FILE *fp;
if (!DOSMounted) {
msgDebug("Can't get DOS file %s - DOSFS currently unmounted!\n", file);
return NULL;
}
if (isDebug())
msgDebug("Request for %s from DOS\n", file);
snprintf(buf, PATH_MAX, "/freebsd/%s", file);
if ((fp = dos_open(&DOSFS, buf)))
return fp;
snprintf(buf, PATH_MAX, "/freebsd/dists/%s", file);
if ((fp = dos_open(&DOSFS, buf)))
return fp;
snprintf(buf, PATH_MAX, "/%s", file);
if ((fp = dos_open(&DOSFS, buf)))
return fp;
snprintf(buf, PATH_MAX, "/dists/%s", file);
if ((fp = dos_open(&DOSFS, buf)))
return fp;
return NULL;
}
void
mediaShutdownDOS(Device *dev)
{
if (!RunningAsInit || !DOSMounted)
return;
if (dos_unmount(&DOSFS))
msgConfirm("Could not unmount DOS partition %s : %s", dev->devname, strerror(errno));
else if (isDebug())
msgDebug("Unmount of DOS partition on %s successful\n", dev->devname);
DOSMounted = FALSE;
return;
}