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freebsd/release/sysinstall/tape.c
Jordan K. Hubbard 8d8f2bab5a Collapse the "get" code substantially by combining common functions.
Also make mountpoint for each media type easier to change.
Also reshuffled some menus for easier usage.
1998-12-22 12:31:26 +00:00

122 lines
3.9 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: tape.c,v 1.19 1997/02/22 14:12:21 peter Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. 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.
*
*/
/* These routines deal with getting things off of tape media */
#include "sysinstall.h"
#include <sys/fcntl.h>
#include <sys/param.h>
static Boolean tapeInitted;
char *
mediaTapeBlocksize(void)
{
char *cp = variable_get(VAR_TAPE_BLOCKSIZE);
return cp ? cp : DEFAULT_TAPE_BLOCKSIZE;
}
Boolean
mediaInitTape(Device *dev)
{
/* This is REALLY gross, but we need to do the init later in get due to the fact
* that media is initialized BEFORE a filesystem is mounted now.
*/
return TRUE;
}
FILE *
mediaGetTape(Device *dev, char *file, Boolean probe)
{
char buf[PATH_MAX];
FILE *fp;
int i;
if (!tapeInitted) {
msgDebug("Tape init routine called for %s (private dir is %s)\n", dev->name, dev->private);
Mkdir(dev->private);
if (chdir(dev->private)) {
msgConfirm("Unable to CD to %s before extracting tape!\n"
"Tape media is not selected and thus cannot be installed from.", dev->private);
return (FILE *)IO_ERROR;
}
/* We know the tape is already in the drive, so go for it */
msgNotify("First extracting distributions from %s...", dev->description);
if (!strcmp(dev->name, "rft0"))
i = vsystem("ft | cpio -idum %s --block-size %s", cpioVerbosity(), mediaTapeBlocksize());
else
i = vsystem("cpio -idum %s --block-size %s -I %s", cpioVerbosity(), mediaTapeBlocksize(), dev->devname);
if (!i) {
tapeInitted = TRUE;
msgDebug("Tape initialized successfully.\n");
}
else {
msgConfirm("Tape extract command failed with status %d!\n"
"Unable to use tape media.", i);
return (FILE *)IO_ERROR;
}
}
sprintf(buf, "%s/%s", (char *)dev->private, file);
if (isDebug())
msgDebug("Request for %s from tape (looking in %s)\n", file, buf);
if (file_readable(buf))
fp = fopen(buf, "r");
else {
sprintf(buf, "%s/releases/%s", (char *)dev->private, file);
fp = fopen(buf, "r");
}
/* Nuke the files behind us to save space */
if (fp)
unlink(buf);
return fp;
}
void
mediaShutdownTape(Device *dev)
{
if (!tapeInitted)
return;
if (file_readable((char *)dev->private)) {
msgNotify("Cleaning up results of tape extract in %s..",
(char *)dev->private);
(void)vsystem("rm -rf %s", (char *)dev->private);
}
tapeInitted = FALSE;
}