package.c revision 11650
111499Sjkh/* 211499Sjkh * The new sysinstall program. 311499Sjkh * 411499Sjkh * This is probably the last program in the `sysinstall' line - the next 511499Sjkh * generation being essentially a complete rewrite. 611499Sjkh * 711650Sjkh * $Id: package.c,v 1.9 1995/10/22 01:32:58 jkh Exp $ 811499Sjkh * 911499Sjkh * Copyright (c) 1995 1011499Sjkh * Jordan Hubbard. All rights reserved. 1111499Sjkh * 1211499Sjkh * Redistribution and use in source and binary forms, with or without 1311499Sjkh * modification, are permitted provided that the following conditions 1411499Sjkh * are met: 1511499Sjkh * 1. Redistributions of source code must retain the above copyright 1611499Sjkh * notice, this list of conditions and the following disclaimer, 1711499Sjkh * verbatim and that no modifications are made prior to this 1811499Sjkh * point in the file. 1911499Sjkh * 2. Redistributions in binary form must reproduce the above copyright 2011499Sjkh * notice, this list of conditions and the following disclaimer in the 2111499Sjkh * documentation and/or other materials provided with the distribution. 2211499Sjkh * 3. All advertising materials mentioning features or use of this software 2311499Sjkh * must display the following acknowledgement: 2411499Sjkh * This product includes software developed by Jordan Hubbard 2511499Sjkh * for the FreeBSD Project. 2611499Sjkh * 4. The name of Jordan Hubbard or the FreeBSD project may not be used to 2711499Sjkh * endorse or promote products derived from this software without specific 2811499Sjkh * prior written permission. 2911499Sjkh * 3011499Sjkh * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND 3111499Sjkh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 3211499Sjkh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3311499Sjkh * ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE 3411499Sjkh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3511499Sjkh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3611499Sjkh * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION) 3711499Sjkh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3811499Sjkh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3911499Sjkh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 4011499Sjkh * SUCH DAMAGE. 4111499Sjkh * 4211499Sjkh */ 4311499Sjkh 4411499Sjkh#include <stdio.h> 4511499Sjkh#include <string.h> 4611499Sjkh#include <stdlib.h> 4711499Sjkh#include <sys/errno.h> 4811499Sjkh#include <sys/param.h> 4911499Sjkh#include <sys/mount.h> 5011499Sjkh#include <sys/stat.h> 5111499Sjkh#include "sysinstall.h" 5211499Sjkh 5311499Sjkhstatic char *make_playpen(char *pen, size_t sz); 5411499Sjkh 5511650Sjkh/* Like package_extract, but assumes current media device */ 5611650Sjkhint 5711650Sjkhpackage_add(char *name) 5811650Sjkh{ 5911650Sjkh if (!mediaVerify()) 6011650Sjkh return RET_FAIL; 6111650Sjkh return package_extract(mediaDevice, name); 6211650Sjkh} 6311650Sjkh 6411499Sjkh/* Extract a package based on a namespec and a media device */ 6511499Sjkhint 6611499Sjkhpackage_extract(Device *dev, char *name) 6711499Sjkh{ 6811499Sjkh char path[511]; 6911499Sjkh char pen[FILENAME_MAX]; 7011499Sjkh char *where; 7111499Sjkh int i, fd, ret; 7211499Sjkh 7311536Sjkh /* Check to make sure it's not already there */ 7411599Sjkh if (!vsystem("pkg_info -e %s", name)) 7511536Sjkh return RET_SUCCESS; 7611536Sjkh 7711553Sjkh if (!dev->init(dev)) { 7811553Sjkh msgConfirm("Unable to initialize media type for package add."); 7911499Sjkh return RET_FAIL; 8011553Sjkh } 8111499Sjkh 8211499Sjkh ret = RET_FAIL; 8311553Sjkh sprintf(path, "packages/All/%s%s", name, strstr(name, ".tgz") ? "" : ".tgz"); 8411553Sjkh msgDebug("pkg_extract: Attempting to fetch %s\n", path); 8511553Sjkh fd = dev->get(dev, path, TRUE); 8611499Sjkh if (fd >= 0) { 8711499Sjkh pid_t tpid; 8811499Sjkh 8911567Sjkh msgNotify("Fetching %s from %s", path, dev->name); 9011499Sjkh pen[0] = '\0'; 9111499Sjkh if ((where = make_playpen(pen, 0)) != NULL) { 9211499Sjkh if (isDebug()) 9311499Sjkh msgDebug("Working in temporary directory %s, will return to %s\n", pen, where); 9411499Sjkh tpid = fork(); 9511499Sjkh if (!tpid) { 9611499Sjkh dup2(fd, 0); 9711640Sjkh i = vsystem("tar %s-xzf -", !strcmp(variable_get(VAR_CPIO_VERBOSITY), "high") ? "-v " : ""); 9811499Sjkh if (isDebug()) 9911499Sjkh msgDebug("tar command returns %d status\n", i); 10011499Sjkh exit(i); 10111499Sjkh } 10211499Sjkh else { 10311499Sjkh int pstat; 10411499Sjkh 10511499Sjkh tpid = waitpid(tpid, &pstat, 0); 10611499Sjkh if (vsystem("(pwd; cat +CONTENTS) | pkg_add %s-S", 10711640Sjkh !strcmp(variable_get(VAR_CPIO_VERBOSITY), "high") ? "-v " : "")) 10811499Sjkh msgConfirm("An error occurred while trying to pkg_add %s.\n" 10911499Sjkh "Please check debugging screen for possible further details.", path); 11011499Sjkh else 11111499Sjkh ret = RET_SUCCESS; 11211567Sjkh close(fd); 11311499Sjkh } 11411499Sjkh if (chdir(where) == -1) 11511627Sjkh msgFatal("Unable to get back to where I was before, Jojo! (That was: %s)", where); 11611499Sjkh vsystem("rm -rf %s", pen); 11711499Sjkh if (isDebug()) 11811499Sjkh msgDebug("Nuked pen: %s\n", pen); 11911499Sjkh } 12011499Sjkh else 12111499Sjkh msgConfirm("Unable to find a temporary location to unpack this stuff in.\n" 12211499Sjkh "You must simply not have enough space or you've configured your\n" 12311499Sjkh "system oddly. Sorry!"); 12411499Sjkh dev->close(dev, fd); 12511499Sjkh if (dev->type == DEVICE_TYPE_TAPE) 12611499Sjkh unlink(path); 12711499Sjkh } 12811553Sjkh else 12911553Sjkh msgDebug("pkg_extract: get operation returned %d\n", fd); 13011499Sjkh return ret; 13111499Sjkh} 13211499Sjkh 13311499Sjkhstatic size_t 13411499Sjkhmin_free(char *tmpdir) 13511499Sjkh{ 13611499Sjkh struct statfs buf; 13711499Sjkh 13811499Sjkh if (statfs(tmpdir, &buf) != 0) { 13911499Sjkh msgDebug("Error in statfs, errno = %d\n", errno); 14011499Sjkh return -1; 14111499Sjkh } 14211499Sjkh return buf.f_bavail * buf.f_bsize; 14311499Sjkh} 14411499Sjkh 14511499Sjkh/* Find a good place to play. */ 14611499Sjkhstatic char * 14711499Sjkhfind_play_pen(char *pen, size_t sz) 14811499Sjkh{ 14911499Sjkh struct stat sb; 15011499Sjkh 15111499Sjkh if (pen[0] && stat(pen, &sb) != RET_FAIL && (min_free(pen) >= sz)) 15211499Sjkh return pen; 15311499Sjkh else if (stat("/var/tmp", &sb) != RET_FAIL && min_free("/var/tmp") >= sz) 15411499Sjkh strcpy(pen, "/var/tmp/instmp.XXXXXX"); 15511499Sjkh else if (stat("/tmp", &sb) != RET_FAIL && min_free("/tmp") >= sz) 15611499Sjkh strcpy(pen, "/tmp/instmp.XXXXXX"); 15711499Sjkh else if ((stat("/usr/tmp", &sb) == RET_SUCCESS || mkdir("/usr/tmp", 01777) == RET_SUCCESS) && 15811499Sjkh min_free("/usr/tmp") >= sz) 15911499Sjkh strcpy(pen, "/usr/tmp/instmp.XXXXXX"); 16011499Sjkh else { 16111499Sjkh msgConfirm("Can't find enough temporary space to extract the files, please try\n" 16211499Sjkh "This again after your system is up (you can run /stand/sysinstall\n" 16311499Sjkh "directly) and you've had a chance to point /var/tmp somewhere with\n" 16411499Sjkh "sufficient temporary space available."); 16511499Sjkh return NULL; 16611499Sjkh } 16711499Sjkh return pen; 16811499Sjkh} 16911499Sjkh 17011499Sjkh/* 17111499Sjkh * Make a temporary directory to play in and chdir() to it, returning 17211499Sjkh * pathname of previous working directory. 17311499Sjkh */ 17411499Sjkhstatic char * 17511499Sjkhmake_playpen(char *pen, size_t sz) 17611499Sjkh{ 17711499Sjkh static char Previous[FILENAME_MAX]; 17811499Sjkh 17911499Sjkh if (!find_play_pen(pen, sz)) 18011499Sjkh return NULL; 18111499Sjkh 18211499Sjkh if (!mktemp(pen)) { 18311499Sjkh msgConfirm("Can't mktemp '%s'.", pen); 18411499Sjkh return NULL; 18511499Sjkh } 18611499Sjkh if (mkdir(pen, 0755) == RET_FAIL) { 18711499Sjkh msgConfirm("Can't mkdir '%s'.", pen); 18811499Sjkh return NULL; 18911499Sjkh } 19011499Sjkh if (isDebug()) { 19111499Sjkh if (sz) 19211499Sjkh msgDebug("Requested space: %d bytes, free space: %d bytes in %s\n", (int)sz, min_free(pen), pen); 19311499Sjkh } 19411499Sjkh if (min_free(pen) < sz) { 19511499Sjkh rmdir(pen); 19611499Sjkh msgConfirm("Not enough free space to create: `%s'\n" 19711499Sjkh "Please try this again after your system is up (you can run\n" 19811499Sjkh "/stand/sysinstall directly) and you've had a chance to point\n" 19911499Sjkh "/var/tmp somewhere with sufficient temporary space available."); 20011499Sjkh return NULL; 20111499Sjkh } 20211499Sjkh if (!getcwd(Previous, FILENAME_MAX)) { 20311499Sjkh msgConfirm("getcwd"); 20411499Sjkh return NULL; 20511499Sjkh } 20611499Sjkh if (chdir(pen) == RET_FAIL) 20711499Sjkh msgConfirm("Can't chdir to '%s'.", pen); 20811499Sjkh return Previous; 20911499Sjkh} 210