2113a60c4b
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!
141 lines
4.7 KiB
C
141 lines
4.7 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 1.12 1996/04/13 13:31:23 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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*
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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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/*
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* This isn't static, like the others, since it's often useful to know whether
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* or not we have a CDROM available in some of the other installation screens.
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* This also isn't a boolean like the others since we have 3 states for it:
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* 0 = cdrom isn't mounted, 1 = cdrom is mounted and we mounted it, 2 = cdrom
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* was already mounted when we came in and we should leave it that way when
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* we leave.
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*/
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int 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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char specialrel[80];
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if (!RunningAsInit || 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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bzero(&args, sizeof(args));
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args.fspec = dev->devname;
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args.flags = 0;
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if (directory_exists("/cdrom/dists"))
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cdromMounted = 2;
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else if (mount(MOUNT_CD9660, "/cdrom", MNT_RDONLY, (caddr_t) &args) == -1) {
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msgConfirm("Error mounting %s on /cdrom: %s (%u)", dev->devname, 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 FreeBSD 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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snprintf(specialrel, 80, "/cdrom/%s/dists", variable_get(VAR_RELNAME));
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if (stat("/cdrom/dists", &sb) && stat(specialrel, &sb)) {
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if (errno == ENOENT) {
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msgConfirm("Couldn't locate the directory `dists' anywhere on the CD.\n"
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"Is this a FreeBSD CDROM? Is the release version set properly\n"
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"in the Options editor?");
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return FALSE;
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}
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else {
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msgConfirm("Error trying to stat the CDROM's dists directory: %s", strerror(errno));
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return FALSE;
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}
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}
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cdromMounted = 1;
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msgDebug("Mounted CDROM device %s on /cdrom\n", dev->devname);
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return TRUE;
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}
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int
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mediaGetCDROM(Device *dev, char *file, Boolean probe)
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{
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char buf[PATH_MAX];
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msgDebug("Request for %s from CDROM\n", file);
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snprintf(buf, PATH_MAX, "/cdrom/%s", file);
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if (file_readable(buf))
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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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if (file_readable(buf))
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return open(buf, O_RDONLY);
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snprintf(buf, PATH_MAX, "/cdrom/%s/%s", variable_get(VAR_RELNAME), file);
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if (file_readable(buf))
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return open(buf, O_RDONLY);
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snprintf(buf, PATH_MAX, "/cdrom/%s/dists/%s", variable_get(VAR_RELNAME), 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 (!RunningAsInit || !cdromMounted || cdromMounted == 2)
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return;
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msgDebug("Unmounting %s from /cdrom\n", dev->devname);
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if (unmount("/cdrom", MNT_FORCE) != 0)
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msgConfirm("Could not unmount the CDROM from /cdrom: %s", strerror(errno));
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msgDebug("Unmount successful\n");
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cdromMounted = 0;
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return;
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}
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