7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

*** 24,34 ****
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  
  #
--- 24,34 ----
  # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  
  #
*** 41,51 ****
  #       3) Verify the output by checking for "mdb:" in the output string
  #
  
  function cleanup
  {
!         $RM -f $OUTFILE
  }
  
  verify_runnable "global"
  log_onexit cleanup
  
--- 41,51 ----
  #       3) Verify the output by checking for "mdb:" in the output string
  #
  
  function cleanup
  {
!         rm -f $OUTFILE
  }
  
  verify_runnable "global"
  log_onexit cleanup
  
*** 79,103 ****
  typeset -i RET=0
  
  i=0
  while (( $i < ${#dcmds[*]} )); do
          log_note "Verifying: '${dcmds[i]}'"
!         $ECHO "${dcmds[i]}" | $MDB -k > $OUTFILE 2>&1
          RET=$?
          if (( $RET != 0 )); then
                  log_fail "mdb '${dcmds[i]}' returned error $RET"
          fi
  
          #
          # mdb prefixes all errors with "mdb: " so we check the output.
          #
!         $GREP "mdb:" $OUTFILE > /dev/null 2>&1
          RET=$?
          if (( $RET == 0 )); then
!                 $ECHO "mdb '${dcmds[i]}' contained 'mdb:'"
!                 # Using $TAIL limits the number of lines in the log
!                 $TAIL -100 $OUTFILE
                  log_fail "mdb walker or dcmd failed"
          fi
  
          ((i = i + 1))
  done
--- 79,103 ----
  typeset -i RET=0
  
  i=0
  while (( $i < ${#dcmds[*]} )); do
          log_note "Verifying: '${dcmds[i]}'"
!         echo "${dcmds[i]}" | mdb -k > $OUTFILE 2>&1
          RET=$?
          if (( $RET != 0 )); then
                  log_fail "mdb '${dcmds[i]}' returned error $RET"
          fi
  
          #
          # mdb prefixes all errors with "mdb: " so we check the output.
          #
!         grep "mdb:" $OUTFILE > /dev/null 2>&1
          RET=$?
          if (( $RET == 0 )); then
!                 echo "mdb '${dcmds[i]}' contained 'mdb:'"
!                 # Using tail limits the number of lines in the log
!                 tail -100 $OUTFILE
                  log_fail "mdb walker or dcmd failed"
          fi
  
          ((i = i + 1))
  done