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586 lines
16 KiB
586 lines
16 KiB
4 years ago
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/* lilo.cpp
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15 years ago
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**
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** Copyright (C) 2000,2001 by Bernhard Rosenkraenzer
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**
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** Contributions by A. Seigo and W. Bastian.
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**
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*/
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/*
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program in a file called COPYING; if not, write to
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** the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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** MA 02110-1301, USA.
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*/
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/*
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** Bug reports and questions can be sent to kde-devel@kde.org
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*/
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#include "lilo.h"
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#include "Disks.h"
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#include "Files.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <fstream>
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#include <string.h>
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using namespace std;
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bool liloimage::isLinux() const {
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const_iterator it=begin();
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14 years ago
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if((*it).contains("image"))
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15 years ago
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return true;
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else
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return false;
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}
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14 years ago
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liloimage *liloimages::find(String const &s) const
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15 years ago
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{
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String t = String::escapeForRegExp(s);
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String regex="^[ \t]*label[ \t]*=[ \t]*\"?" + t + "\"?[ \t]*";
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for(const_iterator it=begin(); it!=end(); it++) {
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if(!(*it).grep(regex).empty())
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return (liloimage*)&(*it);
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}
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return 0;
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}
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void liloimages::remove(String const &s)
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{
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14 years ago
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liloimage *i=find(s);
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15 years ago
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for(iterator it=begin(); it!=end(); it++)
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if(*it==*i) {
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erase(it);
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break;
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}
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}
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liloconf::liloconf(String const &filename)
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{
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checked=false;
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defaults.clear();
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images.clear();
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if(filename.empty()) {
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probe();
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} else {
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StringList s;
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if(s.readfile(filename))
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set(s);
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else
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probe();
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}
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}
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void liloconf::set(StringList const &s)
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{
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defaults.clear();
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images.clear();
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checked=false;
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bool inHeader=true;
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bool start;
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liloimage *image=0;
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for(StringList::const_iterator it=s.begin(); it!=s.end(); it++) {
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String s=*it;
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start=false;
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s=s.simplifyWhiteSpace();
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if(s.empty())
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continue;
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if(s.left(5)==(String)"other" && (s.mid(6, 1)==' ' || s.mid(6, 1)=='=')) {
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inHeader=false;
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start=true;
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}
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if(s.left(5)==(String)"image" && (s.mid(6, 1)==' ' || s.mid(6, 1)=='=')) {
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inHeader=false;
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start=true;
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}
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if(inHeader) {
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defaults+=*it;
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} else if(start) {
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if(image)
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images.insert(images.end(), *image);
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image=new liloimage;
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*image += *it;
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} else {
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*image += *it;
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}
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}
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if(image)
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images.insert(images.end(), *image);
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}
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void liloconf::set(String const &s)
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{
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set((StringList)s);
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}
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void liloconf::writeFile(String const &filename)
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{
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ofstream f;
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f.open(filename, ios::out);
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f << *this << endl;
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f.close();
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chmod(filename, 0600);
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}
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bool liloconf::install(bool probeonly)
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{
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char *lilotmp=strdup("/tmp/liloXXXXXX");
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String command;
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int fd=mkstemp(lilotmp);
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// Unfortunately, gcc 3.1 and higher don't have ofstream::attach
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// anymore. Pity, used to be immensely useful.
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// f.attach(fd);
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close(fd);
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ofstream f(lilotmp, ios::out);
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f << defaults << endl;
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for(liloimages::iterator it=images.begin(); it!=images.end(); it++) {
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f << *it << endl;
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}
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f.close();
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if(probeonly)
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command.sprintf("/sbin/lilo -v -t -C %s 2>&1", (char const * const)lilotmp);
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else
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command.sprintf("/sbin/lilo -v -C %s 2>&1", (char const * const)lilotmp);
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output="";
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FILE *lilo=popen(command, "r");
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char *buf=(char *) malloc(1024);
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while(fgets(buf, 1024, lilo))
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output += buf;
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free(buf);
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ok=(pclose(lilo)==0);
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unlink(lilotmp);
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free(lilotmp);
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checked=true;
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return ok;
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}
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bool const liloconf::isOk()
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{
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if(!checked)
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check();
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return ok;
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}
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String const liloconf::liloOut()
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{
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if(!checked)
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check();
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return output;
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}
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bool liloconf::probe()
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{
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ptable p;
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12 years ago
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StringList drives=p.disklist();
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15 years ago
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String const root=p.device("/", true);
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checked=false;
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defaults.clear();
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images.clear();
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/* Set some reasonable defaults... */
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// Try to figure out the boot device first...
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14 years ago
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if(drives.contains("/dev/hda")) {
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15 years ago
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defaults += "boot=/dev/hda"; // 1st IDE/ATAPI harddisk
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defaults += "lba32"; // otherwise it is assumed
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}
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14 years ago
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else if(drives.contains("/dev/sda")) {
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15 years ago
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defaults += "boot=/dev/sda"; // 1st SCSI harddisk
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defaults += "linear"; // some SCSI disks need this
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14 years ago
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} else if(drives.contains("/dev/i2o/hda"))
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15 years ago
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defaults += "boot=/dev/i2o/hda"; // 1st I2O harddisk
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14 years ago
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else if(drives.contains("/dev/eda"))
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15 years ago
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defaults += "boot=/dev/eda"; // 1st MCA ESDI harddisk
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14 years ago
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else if(drives.contains("/dev/pda"))
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15 years ago
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defaults += "boot=/dev/pda"; // 1st Parallel port IDE disk
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else
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defaults += "boot=Insert_your_boot_device_here"; // shouldn't happen
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defaults += "prompt";
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defaults += "timeout=50";
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if(!access("/boot/message", F_OK))
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defaults += "message=/boot/message";
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defaults += "root=" + root;
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/* Scan for available operating systems...
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* The list of what to do for each partition type is based on my
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* best guess. I don't have anything but Linux (Red Hat Linux 7.0),
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* FreeBSD (5.0-CURRENT), OpenBSD (2.6), FreeDOS (some CVS snapshot)
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* and DR-DOS (7.03), so anything else might be wrong.
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* If you have any additions or corrections, please send them to
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* bero@redhat.com.
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*/
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// Scan for Linux kernels in the currently running system
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// The following may or may not be specific to Red Hat Linux and
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// similar distributions... If you're using a distribution that does
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// things differently, tell me how it should be done there.
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StringList files=Files::glob("/boot/*", Files::File);
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for(StringList::iterator it=files.begin(); it!=files.end(); it++) {
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struct stat s;
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if(lstat(*it, &s)) // If we can't stat it, it can't be a kernel
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continue;
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if(s.st_size<131072) // if you managed to compile a kernel at less than 128k, you're cheating. ;)
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continue;
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14 years ago
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if((*it).contains("System.map") || (*it).contains("initrd")) // definitely not a kernel
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15 years ago
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continue;
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14 years ago
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if((*it).contains("vmlinux")) {
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15 years ago
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// If the kernel exists both in compressed and in
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// uncompressed form, ignore the uncompressed one.
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14 years ago
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String compr=(*it).replace("vmlinux", "vmlinuz");
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15 years ago
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if(!access(compr, F_OK))
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continue;
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}
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String version=(*it).regex("(test-?|pre-?)?([0-9]\\.[0-9]\\.[0-9]+)(-?[0-9A-Za-z]+)*");
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String label=version;
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if(version.empty()) // not a recognized kernel
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version="linux";
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if (label.empty())
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{
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label = (*it);
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14 years ago
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if (label.find('/') != string::npos)
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15 years ago
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label = label.right(label.length()-1-label.rfind('/'));
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}
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// Check if we have an initial ramdisk (initrd) for this kernel...
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String initrd1; // first guess
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String initrd2; // second guess
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14 years ago
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if((*it).contains("vmlinuz")) {
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initrd1=(*it).replace("vmlinux", "initrd")+".img";
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initrd2=(*it).replace("vmlinuz", "initrd.img");
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15 years ago
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}
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14 years ago
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else if((*it).contains("vmlinux")) {
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initrd1=(*it).replace("vmlinux", "initrd")+".img";
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initrd2=(*it).replace("vmlinuz", "initrd.img");
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15 years ago
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}
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14 years ago
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else if((*it).contains("kernel")) {
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initrd1=(*it).replace("kernel", "initrd")+".img";
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initrd2=(*it).replace("vmlinuz", "initrd.img");
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15 years ago
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}
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14 years ago
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else if((*it).contains("linux")) {
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initrd1=(*it).replace("linux", "initrd")+".img";
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initrd2=(*it).replace("vmlinuz", "initrd.img");
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15 years ago
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}
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else {
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initrd1="/boot/initrd-"+version+".img";
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initrd2="/boot/initrd.img-"+version;
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}
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String initrd = "";
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if(!access(initrd1, F_OK))
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initrd = initrd1;
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else if(!access(initrd2, F_OK))
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initrd = initrd2;
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if(label.size()>15) // LILO can't handle this
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14 years ago
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if(label.contains("enterprise"))
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label=label.replace("enterprise", "E");
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15 years ago
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if(label.size()>15)
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label=label.left(15);
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// label, kernel, root, initrd, optional, append, vga, readonly,
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// literal, ramdisk
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addLinux(label, *it, root, initrd);
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}
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addLinux("Linux_Compiled", "/usr/src/linux/arch/i386/boot/bzImage", root, "", true); // User-compiled kernel that wasn't moved...
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// Scan for other OSes... and Linux kernels on other partitions.
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for(StringList::iterator it=p.partition.begin(); it!=p.partition.end(); it++) {
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switch(p.id[*it]) {
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case 0x01: // FAT12... Might be some really really old DOS.
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case 0x04: // FAT16 < 32 M... Probably another old DOS.
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case 0x06: // FAT16
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case 0x0b: // FAT32
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case 0x0c: // FAT32 (LBA)
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case 0x0e: // FAT16 (LBA)
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case 0x14: // Hidden FAT16 < 32 M...
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case 0x16: // Hidden FAT16
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case 0x1b: // Hidden FAT32
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case 0x1c: // Hidden FAT32 (LBA)
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case 0x1e: // Hidden FAT16 (LBA)
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case 0x24: // NEC DOS
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case 0x55: // EZ-Drive... I think this was some DOS tool
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// to see "large" disks ages ago, so it may be
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// a DOS partition... Not sure about this one.
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case 0xc1: // DRDOS/sec
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case 0xc4: // DRDOS/sec
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case 0xc6: // DRDOS/sec
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{
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// Try to determine which type of DOS we're using
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String mp=p.mountpt[*it];
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String lbl="DOS";
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if(mp.empty()) {
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char *tmp=tmpnam(NULL);
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tmp=tmpnam(NULL);
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mkdir(tmp, 0700);
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if(!mount(*it, tmp, "msdos", MS_MGC_VAL|MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC, NULL))
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mp=tmp;
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else if(!mount(*it, mp, "vfat", MS_MGC_VAL|MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC, NULL))
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mp=tmp;
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}
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if(!mp.empty()) {
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struct stat s;
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if(stat(mp+"/ibmbio.com", &s) && stat(mp+"/io.sys", &s) && stat(mp+"/ntldr", &s)) // Doesn't look like a bootable DOS partition, ignore it
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break;
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if(!stat(mp+"/drdos.386", &s))
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lbl="DR-DOS";
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else if(!stat(mp+"/ntldr", &s))
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lbl="NT";
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else if(!stat(mp+"/msdos.sys", &s)) {
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if(s.st_size < 4096)
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/* msdos.sys is actual code in DOS, it's a config file in SuckOS */
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if(!stat(mp+"/windows/system/sfc.exe", &s)) /* This is (supposed to be?) a component of Suck98 but not Suck95 */
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lbl="Windows98";
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else
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lbl="Windows95";
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}
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if(p.mountpt[*it].empty()) {
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umount(mp);
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sync();
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rmdir(mp);
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}
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}
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addOther(lbl, *it);
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break;
|
||
|
|
}
|
||
|
|
case 0x02: // Xenix root... Does Xenix actually boot this way?
|
||
|
|
addOther("Xenix", *it);
|
||
|
|
break;
|
||
|
|
case 0x07: // HPFS or NTFS... Is there any way to check which?
|
||
|
|
// (without trying to mount them... many kernels
|
||
|
|
// support neither)
|
||
|
|
case 0x17: // Hidden HPFS or NTFS
|
||
|
|
addOther("NT", *it);
|
||
|
|
break;
|
||
|
|
case 0x09: // AIX
|
||
|
|
addOther("AIX", *it);
|
||
|
|
break;
|
||
|
|
case 0x83: // My favorite :)
|
||
|
|
case 0xfd: // Linux RAID
|
||
|
|
// TODO: scan other FSes for kernels...
|
||
|
|
break;
|
||
|
|
case 0x84:
|
||
|
|
{
|
||
|
|
// CLASH: SystemSoft MobilePRO BIOS and
|
||
|
|
// various Dell BIOSes use the same
|
||
|
|
// ID (0x84) for its hibernation partitions
|
||
|
|
// as OS/2 does for hidden C: drives.
|
||
|
|
// Fortunately, hibernation partitions are easy to
|
||
|
|
// recognize...
|
||
|
|
int fd=open(*it, O_RDONLY);
|
||
|
|
char *header=(char *) malloc(20);
|
||
|
|
read(fd, header, 20);
|
||
|
|
close(fd);
|
||
|
|
if(strncmp(header, "SystemSoft", 10)==0) // It's a hibernation partition
|
||
|
|
break;
|
||
|
|
else if(strncmp(header+3, "Dell Suspend", 12)==0) { // It's a Dell hibernation partition
|
||
|
|
// Dell BIOSes are ultimately buggy: They don't do resume-from-disk
|
||
|
|
// properly.
|
||
|
|
// Hibernation partitions are bootable and need to be loaded by the
|
||
|
|
// boot manager instead.
|
||
|
|
addOther("SuspendToDisk", *it);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
addOther("OS2", *it, false, "/boot/os2_d.b");
|
||
|
|
}
|
||
|
|
case 0x0a: // OS/2 Boot Manager
|
||
|
|
addOther("OS2", *it, false, "/boot/os2_d.b");
|
||
|
|
break;
|
||
|
|
case 0x10: // OPUS... (what is that?)
|
||
|
|
addOther("OPUS", *it);
|
||
|
|
break;
|
||
|
|
case 0x3c: // Partition Magic
|
||
|
|
addOther("PartitionMagic", *it);
|
||
|
|
break;
|
||
|
|
case 0x40: // Venix 80286
|
||
|
|
addOther("Venix", *it);
|
||
|
|
break;
|
||
|
14 years ago
|
case 0x4d: // TQNX
|
||
|
13 years ago
|
addOther("QNX", *it);
|
||
|
15 years ago
|
break;
|
||
|
|
case 0x52: // CP/M (does anyone dual-boot between CP/M and
|
||
|
|
// Linux? Would be interesting to see. ;) )
|
||
|
|
case 0xdb: // CP/M/CTOS
|
||
|
|
addOther("CPM", *it);
|
||
|
|
break;
|
||
|
|
case 0x63: // GNU/Hurd
|
||
|
|
addOther("GNU_Hurd", *it);
|
||
|
|
break;
|
||
|
|
case 0x64: // Novell Netware
|
||
|
|
case 0x65: // Novell Netware
|
||
|
|
addOther("Netware", *it);
|
||
|
|
break;
|
||
|
|
case 0x75: // PC/IX (what is that?)
|
||
|
|
addOther("PCIX", *it);
|
||
|
|
break;
|
||
|
|
case 0x80: // Old Minix
|
||
|
|
case 0x81: // Minix and some VERY old Linux kernels
|
||
|
|
addOther("Minix", *it);
|
||
|
|
break;
|
||
|
|
case 0x9f: // BSD/OS
|
||
|
|
case 0xb7: // BSDI
|
||
|
|
addOther("BSD_OS", *it);
|
||
|
|
break;
|
||
|
|
case 0xa5: // Some BSDs... Is there any way to determine which
|
||
|
|
// one?
|
||
|
|
addOther("BSD", *it);
|
||
|
|
break;
|
||
|
|
case 0xa6: // OpenBSD
|
||
|
|
addOther("OpenBSD", *it);
|
||
|
|
break;
|
||
|
|
case 0xa7: // NeXTSTEP
|
||
|
|
addOther("NeXT", *it);
|
||
|
|
break;
|
||
|
|
case 0xc7: // Syrinx (what is that?)
|
||
|
|
addOther("Syrinx", *it);
|
||
|
|
break;
|
||
|
|
case 0xeb: // BeOS
|
||
|
|
addOther("BeOS", *it);
|
||
|
|
break;
|
||
|
|
case 0xfe: // LANstep (what is that?)
|
||
|
|
addOther("LANstep", *it);
|
||
|
|
break;
|
||
|
|
case 0xff: // BBT (what is that?)
|
||
|
|
addOther("BBT", *it);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// addOther("floppy", "/dev/fd0", true);
|
||
|
|
//Would be nice, but LILO can't handle an optional
|
||
|
|
//other=nonexistantdevice entry ATM.
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
void liloconf::addLinux(String const &label, String const &kernel, String const &root, String const &initrd, bool optional, String const &append, String const &vga, bool readonly, String const &literal, String const &ramdisk)
|
||
|
|
{
|
||
|
|
liloimage *lx_image=new liloimage;
|
||
|
|
*lx_image += "image="+kernel;
|
||
|
|
*lx_image += "\tlabel=\""+label+"\"";
|
||
|
|
if(!root.empty())
|
||
|
|
*lx_image += "\troot="+root;
|
||
|
|
if(readonly)
|
||
|
|
*lx_image += "\tread-only";
|
||
|
|
else
|
||
|
|
*lx_image += "\tread-write";
|
||
|
|
if(!initrd.empty())
|
||
|
|
*lx_image += "\tinitrd=\""+initrd+"\"";
|
||
|
|
if(!append.empty())
|
||
|
|
*lx_image += "\tappend=\""+append+"\"";
|
||
|
|
if(!vga.empty())
|
||
|
|
*lx_image += "\tvga=\""+vga+"\"";
|
||
|
|
if(!literal.empty())
|
||
|
|
*lx_image += "\tliteral=\""+literal+"\"";
|
||
|
|
if(!ramdisk.empty())
|
||
|
|
*lx_image += "\tramdisk=\""+ramdisk+"\"";
|
||
|
|
if(optional)
|
||
|
|
*lx_image += "\toptional";
|
||
|
|
images.insert(images.end(), *lx_image);
|
||
|
|
}
|
||
|
|
void liloconf::addOther(String const &name, String const &partition, bool const &optional, String const &chain)
|
||
|
|
{
|
||
|
|
liloimage *other=new liloimage;
|
||
|
|
*other += "other="+partition;
|
||
|
|
*other += "\tlabel=\""+name+"\"";
|
||
|
|
if(optional)
|
||
|
|
*other += "\toptional";
|
||
|
|
if(!chain.empty())
|
||
|
|
*other += "\tloader="+chain+"\"";
|
||
|
|
images.insert(images.end(), *other);
|
||
|
|
}
|
||
|
|
void liloconf::remove(String const &label)
|
||
|
|
{
|
||
|
|
String t = String::escapeForRegExp(label);
|
||
|
|
|
||
|
|
String regex="[ \t]*label[ \t]*=[ \t]*\"?"+t+"\"?[ \t]*";
|
||
|
|
for(liloimages::iterator it=images.begin(); it!=images.end(); it++) {
|
||
|
|
if(!(*it).grep(regex).empty()) {
|
||
|
|
images.erase(it);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void liloconf::removeKernel(String const &kernel)
|
||
|
|
{
|
||
|
|
String t = String::escapeForRegExp(kernel);
|
||
|
|
|
||
|
|
String regex="[ \t]*(image|other)[ \t]*=[ \t]*\"?"+t+"\"?[ \t]*";
|
||
|
|
for(liloimages::iterator it=images.begin(); it!=images.end(); it++) {
|
||
|
|
if(!(*it).grep(regex).empty()) {
|
||
|
|
images.erase(it);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
StringList const &liloconf::entries() const
|
||
|
|
{
|
||
|
|
StringList *s=new StringList;
|
||
|
|
for(liloimages::const_iterator it=images.begin(); it!=images.end(); it++) {
|
||
|
|
String lbl=(*it).grep("[ \t]*label[ \t]*=.*");
|
||
|
|
lbl=lbl.mid(lbl.locate("label")+6);
|
||
|
|
while(isspace(lbl.chr(0)) || lbl.chr(0)=='=' || lbl.chr(0)=='\"')
|
||
|
|
lbl=lbl.mid(2);
|
||
|
|
while(isspace(lbl.right().chr(0)) || lbl.right()==(String)"\"")
|
||
|
|
lbl=lbl.left(lbl.size()-1);
|
||
|
|
s->add(lbl);
|
||
|
|
}
|
||
|
|
return *s;
|
||
|
|
}
|
||
|
|
String const liloconf::dflt() const
|
||
|
|
{
|
||
|
|
String dflt="";
|
||
|
|
for(StringList::const_iterator it=defaults.begin(); it!=defaults.end() && dflt.empty(); it++)
|
||
|
|
if(!((*it).regex("^[ \t]*default[ \t]*=")).empty())
|
||
|
|
dflt=(*it).simplifyWhiteSpace();
|
||
|
|
if(dflt.empty()) {
|
||
|
|
liloimages::const_iterator it=images.begin();
|
||
|
|
if (it != images.end())
|
||
|
|
dflt=(*it).grep("^[ \t]*label[ \t]*=").simplifyWhiteSpace();
|
||
|
|
}
|
||
|
|
if(!dflt.empty()) {
|
||
|
|
dflt=dflt.mid(dflt.locate("=")+2).simplifyWhiteSpace();
|
||
|
|
if(dflt.left()==(String)"\"")
|
||
|
|
dflt=dflt.mid(2).simplifyWhiteSpace();
|
||
|
|
if(dflt.right()==(String)"\"")
|
||
|
|
dflt=dflt.left(dflt.size()-1).simplifyWhiteSpace();
|
||
|
|
}
|
||
|
|
return dflt;
|
||
|
|
}
|
||
|
|
void liloconf::setDefault(String const &dflt)
|
||
|
|
{
|
||
|
|
bool ready=false;
|
||
|
|
for(StringList::const_iterator it=defaults.begin(); !ready && it!=defaults.end(); it++)
|
||
|
|
if(!((*it).regex("^[ \t]*default[ \t]*=")).empty()) {
|
||
|
|
defaults.remove(*it);
|
||
|
|
ready=true;
|
||
|
|
}
|
||
|
|
defaults+="default=" + dflt;
|
||
|
|
}
|
||
|
|
liloconf::operator String() const
|
||
|
|
{
|
||
|
|
String s=defaults;
|
||
|
|
s+="\n";
|
||
|
|
for(liloimages::const_iterator it=images.begin(); it!=images.end(); it++) {
|
||
|
|
s+=*it;
|
||
|
|
s+="\n";
|
||
|
|
}
|
||
|
|
return s;
|
||
|
|
}
|
||
|
|
|
||
|
|
ostream &operator <<(ostream &os, liloconf const &l)
|
||
|
|
{
|
||
|
|
os << l.defaults << endl;
|
||
|
|
for(liloimages::const_iterator it=l.images.begin(); it!=l.images.end(); it++)
|
||
|
|
os << *it << endl;
|
||
|
|
return os;
|
||
|
|
}
|
||
|
|
ostream &operator <<(ostream &os, liloconf const *l)
|
||
|
|
{
|
||
|
|
os << l->defaults << endl;
|
||
|
|
for(liloimages::const_iterator it=l->images.begin(); it!=l->images.end(); it++)
|
||
|
|
os << *it << endl;
|
||
|
|
return os;
|
||
|
|
}
|