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/*
* The new sysinstall program.
*
* This is probably the last program in the `sysinstall' line - the next
* generation being essentially a complete rewrite.
*
* $Id: install.c,v 1.71.2.31 1995/10/15 04:37:05 jkh 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jordan Hubbard
* for the FreeBSD Project.
* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* 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 <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include "sysinstall.h"
static char *make_playpen(char *pen, size_t sz);
/* Extract a package based on a namespec and a media device */
int
package_extract(Device *dev, char *name)
{
char path[511];
char pen[FILENAME_MAX];
char *where;
int i, fd, ret;
if (!dev->init(dev))
return RET_FAIL;
ret = RET_FAIL;
sprintf(path, "packages/%s%s", name, strstr(name, ".tgz") ? "" : ".tgz");
fd = dev->get(dev, path, NULL);
if (fd >= 0) {
pid_t tpid;
if (isDebug())
msgDebug("Got target %s from media type %d\n", path, dev->type);
pen[0] = '\0';
if ((where = make_playpen(pen, 0)) != NULL) {
if (isDebug())
msgDebug("Working in temporary directory %s, will return to %s\n", pen, where);
tpid = fork();
if (!tpid) {
dup2(fd, 0);
i = vsystem("tar %s-xzf -", !strcmp(variable_get(CPIO_VERBOSITY_LEVEL), "high") ? "-v " : "");
if (isDebug())
msgDebug("tar command returns %d status\n", i);
exit(i);
}
else {
int pstat;
close(fd);
tpid = waitpid(tpid, &pstat, 0);
if (vsystem("(pwd; cat +CONTENTS) | pkg_add %s-S",
variable_get(CPIO_VERBOSITY_LEVEL), "high") ? "-v " : "")
msgConfirm("An error occurred while trying to pkg_add %s.\n"
"Please check debugging screen for possible further details.", path);
else
ret = RET_SUCCESS;
}
if (chdir(where) == -1)
msgFatal("Unable to get back to where I was before, Jojo!\n(That was: %s)\n", where);
vsystem("rm -rf %s", pen);
if (isDebug())
msgDebug("Nuked pen: %s\n", pen);
}
else
msgConfirm("Unable to find a temporary location to unpack this stuff in.\n"
"You must simply not have enough space or you've configured your\n"
"system oddly. Sorry!");
dev->close(dev, fd);
if (dev->type == DEVICE_TYPE_TAPE)
unlink(path);
}
return ret;
}
static size_t
min_free(char *tmpdir)
{
struct statfs buf;
if (statfs(tmpdir, &buf) != 0) {
msgDebug("Error in statfs, errno = %d\n", errno);
return -1;
}
return buf.f_bavail * buf.f_bsize;
}
/* Find a good place to play. */
static char *
find_play_pen(char *pen, size_t sz)
{
struct stat sb;
if (pen[0] && stat(pen, &sb) != RET_FAIL && (min_free(pen) >= sz))
return pen;
else if (stat("/var/tmp", &sb) != RET_FAIL && min_free("/var/tmp") >= sz)
strcpy(pen, "/var/tmp/instmp.XXXXXX");
else if (stat("/tmp", &sb) != RET_FAIL && min_free("/tmp") >= sz)
strcpy(pen, "/tmp/instmp.XXXXXX");
else if ((stat("/usr/tmp", &sb) == RET_SUCCESS || mkdir("/usr/tmp", 01777) == RET_SUCCESS) &&
min_free("/usr/tmp") >= sz)
strcpy(pen, "/usr/tmp/instmp.XXXXXX");
else {
msgConfirm("Can't find enough temporary space to extract the files, please try\n"
"This again after your system is up (you can run /stand/sysinstall\n"
"directly) and you've had a chance to point /var/tmp somewhere with\n"
"sufficient temporary space available.");
return NULL;
}
return pen;
}
/*
* Make a temporary directory to play in and chdir() to it, returning
* pathname of previous working directory.
*/
static char *
make_playpen(char *pen, size_t sz)
{
static char Previous[FILENAME_MAX];
if (!find_play_pen(pen, sz))
return NULL;
if (!mktemp(pen)) {
msgConfirm("Can't mktemp '%s'.", pen);
return NULL;
}
if (mkdir(pen, 0755) == RET_FAIL) {
msgConfirm("Can't mkdir '%s'.", pen);
return NULL;
}
if (isDebug()) {
if (sz)
msgDebug("Requested space: %d bytes, free space: %d bytes in %s\n", (int)sz, min_free(pen), pen);
}
if (min_free(pen) < sz) {
rmdir(pen);
msgConfirm("Not enough free space to create: `%s'\n"
"Please try this again after your system is up (you can run\n"
"/stand/sysinstall directly) and you've had a chance to point\n"
"/var/tmp somewhere with sufficient temporary space available.");
return NULL;
}
if (!getcwd(Previous, FILENAME_MAX)) {
msgConfirm("getcwd");
return NULL;
}
if (chdir(pen) == RET_FAIL)
msgConfirm("Can't chdir to '%s'.", pen);
return Previous;
}
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