crypto-keygen-standalone-brute.sh

   1 #!/bin/sh
   2
   3 outfile=$1; shift
   4 hosts=$1; shift
   5
   6 on()
   7 {
   8         case "$1" in
   9                 localhost)
  10                         shift
  11                         exec "$@"
  12                         ;;
  13                 *)
  14                         exec ssh "$@"
  15                         ;;
  16         esac
  17 }
  18
  19 pids=
  20 mainpid=$$
  21 trap 'kill $pids' EXIT
  22 trap 'exit 1' INT USR1
  23
  24 n=0
  25 for h in $hosts; do
  26         nn=`on "$h" cat /proc/cpuinfo | grep -c '^processor[    :]'`
  27         n=$(($nn + $n))
  28 done
  29
  30 rm -f bruteforce-*
  31 i=0
  32 for h in $hosts; do
  33         nn=`on "$h" cat /proc/cpuinfo | grep -c '^processor[    :]'`
  34         ii=$(($nn + $i))
  35         while [ $i -lt $ii ]; do
  36                 i=$(($i+1))
  37                 (
  38                         on "$h" ./crypto-keygen-standalone -n $n -o /dev/stdout "$@" > bruteforce-$i &
  39                         pid=$!
  40                         trap 'kill $pid' TERM
  41                         wait
  42                         if [ -s "bruteforce-$i" ]; then
  43                                 trap - TERM
  44                                 mv "bruteforce-$i" "$outfile"
  45                                 kill -USR1 $mainpid
  46                         else
  47                                 rm -f "bruteforce-$i"
  48                         fi
  49                 ) &
  50                 pids="$pids $!"
  51         done
  52 done
  53 wait