#!/usr/bin/perl -w

# mboxget - get a message from a mailbox
#
# usage: mboxget [mass-check-mbox-id ...]

use strict;

my $prog = $0;
$prog =~ s@.*/@@;

foreach my $where (@ARGV) {
  my ($file, $offset) = ($where =~ m/(.*)\.(\d+)$/);
  open(INPUT, $file) || die("$prog: open $file failed: $!\n");
  seek(INPUT, $offset, 0) || die("$prog: seek $offset failed: $!\n");
  my $past = 0;
  while (<INPUT>) {
    if ($past) {
      last if substr($_,0,5) eq "From ";
    }
    else {
      $past = 1;
    }
    print $_;
  }
  close INPUT;
}