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126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last attempt in the `sysinstall' line, the next
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* generation being slated to essentially a complete rewrite.
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*
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* $Id: cdrom.c,v 1.3 1995/05/28 03:04:46 jkh Exp $
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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* Copyright (c) 1995
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* Gary J Palmer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Jordan Hubbard
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* for the FreeBSD Project.
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* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/* These routines deal with getting things off of CDROM media */
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#include "sysinstall.h"
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#include <sys/stat.h>
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#include <sys/errno.h>
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#include <sys/param.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <grp.h>
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#include <fcntl.h>
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#define CD9660
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#include <sys/mount.h>
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#undef CD9660
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static Boolean cdromMounted;
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Boolean
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mediaInitCDROM(Device *dev)
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{
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struct iso_args args;
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struct stat sb;
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if (cdromMounted)
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return TRUE;
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if (Mkdir("/cdrom", NULL))
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return FALSE;
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args.fspec = dev->devname;
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args.flags = 0;
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if (mount(MOUNT_CD9660, "/cdrom", MNT_RDONLY, (caddr_t) &args) == -1) {
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msgConfirm("Error mounting %s on /cdrom: %s (%u)\n", dev, strerror(errno), errno);
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return FALSE;
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}
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/*
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* Do a very simple check to see if this looks roughly like a 2.0.5 CDROM
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* Unfortunately FreeBSD won't let us read the ``label'' AFAIK, which is one
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* sure way of telling the disc version :-(
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*/
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if (stat("/cdrom/dists", &sb)) {
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if (errno == ENOENT) {
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msgConfirm("Couldn't locate the directory `dists' on the CD.\nIs this a 2.0.5 CDROM?\n");
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return FALSE;
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}
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else {
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msgConfirm("Couldn't stat directory %s: %s", "/cdrom/dists", strerror(errno));
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return FALSE;
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}
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}
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cdromMounted = TRUE;
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return TRUE;
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}
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int
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mediaGetCDROM(char *file)
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{
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char buf[PATH_MAX];
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snprintf(buf, PATH_MAX, "/cdrom/%s", file);
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if (!access(buf,R_OK))
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return open(buf, O_RDONLY);
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snprintf(buf, PATH_MAX, "/cdrom/dists/%s", file);
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return open(buf, O_RDONLY);
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}
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void
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mediaShutdownCDROM(Device *dev)
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{
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if (!cdromMounted)
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return;
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msgDebug("Unmounting /cdrom\n");
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if (unmount("/cdrom", 0) != 0)
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msgConfirm("Could not unmount the CDROM: %s\n", strerror(errno));
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msgDebug("Unmount returned\n");
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cdromMounted = FALSE;
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return;
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}
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