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|
use POSIX qw(strftime);
sub shell {
$thpath = "$homedir";
my $lsfile = "/usr/share/thpot/ls.txt";
if ($thpath =~ m/^.*\/([^\/]+)/){
$pathsuffix = $1;
}
if ($hostname =~ m/^([^\.]+)\./){
$shortname = $1;
}
$prompt = "[root\@${shortname} ${pathsuffix}]# ";
if ( $greeting ne "" ) {
#TODO: This should check wether or not the command succeeds!
open(GREETING, "$greetbin|");
while(<GREETING>) {
print STDERR $_;
}
close(GREETING);
}
print STDERR "$prompt";
while (my $commandline = <STDIN>) {
open(LOG, ">>$sesslog");
select LOG;
$|=1;
print LOG $commandline;
chomp $commandline;
@commandline = (split ";", $commandline);
while (@commandline){
$commands = shift (@commandline) ;
@command=split /\s+/,($commands);
shift @command if ($command[0] =~ /^(\s|$)/);
if ($command[0] =~ /\buname\b/){
if ($command[1] =~ /-[amsv]\b/){
print STDERR $shellhash{$command[0]}{$command[1]}, "\n";
}else{
print STDERR $shellhash{$command[0]}{-s}, "\n";
}
} elsif ($command[0] =~ /\bcd\b/){
changedir("$command[1]");
} elsif ($command[0] =~ /\bpwd\b/){
print STDERR "$thpath\n";
} elsif ($command[0] =~ /\b(whoami|w|id|wget)\b/){
print STDERR "$shellhash{$command[0]}\n";
} elsif ($command[0] =~ /\b(exit|logout)\b/){
close(LOG);
return;
} elsif ($command[0] =~ /\bls\b/) {
if ( -f "$lsfile" ) {
open (LS,"<$lsfile");
while (<LS>){
print STDERR $_;
}
close(LS);
} else {
$DATE = strftime "%a %b %e %H:%M:%S %Y", localtime;
print ERRLOG "$DATE\tCannot find directory listing (in file $lsfil
e)\n";
print STDERR "ls: $commands[1]: No such file or directory\n;"
}
}
print STDERR "$prompt";
}
}
}
sub changedir{
$elements = $_[0] or $elements = "$homedir";
if ($elements =~ /^\/.*/){
$elements =~ s/\///;
@thpath = ();
} else {
@thpath = (split /\//, $thpath);
}
@elements = (split /\//, $elements);
foreach $element (@elements){
if ($element eq ".."){
pop @thpath;
} else {
push @thpath, $element;
}
}
$thpath = "/" . (join "/", @thpath);
$thpath =~ s/^\/\//\//;
$pathsuffix = pop @thpath;
push @thpath, $pathsuffix;
$pathsuffix = "/" unless $pathsuffix;
$prompt = "[root\@$shortname $pathsuffix]# ";
}
sub hostname{
}
%shellhash = (
uname => {
-a => "Linux localhost 2.2.17 #4 Mon Apr 7 09:04:33 EDT 2001 i686 unknown unknown GNU/Linux",
-m => "i686",
-s => "Linux",
-v => "#4 Mon Apr 7 09:04:33 EDT 2001",
},
whoami => "root",
w => "3:32am up 7:45, 10 users, load average: 0.04, 0.05, 0.01
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT",
id => "uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)",
wget => "wget: missing URL
Usage: wget [OPTION]... [URL]...
Try `wget --help' for more options.",
);
|
