sh/tests/execution/redir1.0

   1 # $FreeBSD: head/bin/sh/tests/execution/redir1.0 211408 2010-08-16 22:23:19Z jilles $
   2 trap ': $((brokenpipe+=1))' PIPE
   3
   4 P=${TMPDIR:-/tmp}
   5 cd $P
   6 T=$(mktemp -d sh-test.XXXXXX)
   7 cd $T
   8
   9 brokenpipe=0
  10 mkfifo fifo1 fifo2
  11 read dummy >fifo2 <fifo1 &
  12 {
  13         exec 4>fifo2
  14 } 3<fifo2 # Formerly, sh would keep fd 3 and a duplicate of it open.
  15 echo dummy >fifo1
  16 if [ $brokenpipe -ne 0 ]; then
  17         rc=3
  18 fi
  19 wait
  20 echo dummy >&4 2>/dev/null
  21 if [ $brokenpipe -eq 1 ]; then
  22         : ${rc:=0}
  23 fi
  24
  25 rm fifo1 fifo2
  26 rmdir ${P}/${T}
  27 exit ${rc:-3}