/* * The new sysinstall program. * * This is probably the last program in the `sysinstall' line - the next * generation being essentially a complete rewrite. * * $Id: package.c,v 1.1 1995/10/15 12:41:05 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 #include #include #include #include #include #include #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; /* Check to make sure it's not already there */ if (!vsystem("pkg_info -e %s")) return RET_SUCCESS; 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", !strcmp(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; }