If you have perl available the following should do what you
need. Wouldn't be too difficult to write something similar
in C as well.
#!/usr/bin/env perl
use strict;
use warnings;
use POSIX qw//;
sub daemonize {
defined (my $pid = fork()) or die "Can't fork: $!";
exit if $pid;
defined (my $ppid = fork()) or die "Can't fork: $!";
exit if $ppid;
chdir "/" or die "Can't chdir '/': $!";
POSIX::setsid or die "Can't start new session: $!";
}
daemonize();
eval {
my @cmd = @ARGV;
exec @cmd;
};
warn $@ if $@;
exit;
Edgar
