usr/src/cmd/dtrace/test/tst/common/proc/tst.execfail.ENOENT.ksh

   1 #
   2 # CDDL HEADER START
   3 #
   4 # The contents of this file are subject to the terms of the
   5 # Common Development and Distribution License (the "License").
   6 # You may not use this file except in compliance with the License.
   7 #
   8 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9 # or http://www.opensolaris.org/os/licensing.
  10 # See the License for the specific language governing permissions
  11 # and limitations under the License.
  12 #
  13 # When distributing Covered Code, include this CDDL HEADER in each
  14 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15 # If applicable, add the following below this CDDL HEADER, with the
  16 # fields enclosed by brackets "[]" replaced with your own identifying
  17 # information: Portions Copyright [yyyy] [name of copyright owner]
  18 #
  19 # CDDL HEADER END
  20 #
  21
  22 #
  23 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26 # ident "%Z%%M% %I%     %E% SMI"
  27
  28 #
  29 # This script is identical to tst.execfail.ksh -- but it additionally checks
  30 # that errno is set to ENOENT in the case that an interpreter can't be
  31 # found.
  32 #
  33 # If this fails, the script will run indefinitely; it relies on the harness
  34 # to time it out.
  35 #
  36 script()
  37 {
  38         $dtrace -s /dev/stdin <<EOF
  39         proc:::exec
  40         /curpsinfo->pr_ppid == $child && args[0] == "$badexec"/
  41         {
  42                 self->exec = 1;
  43         }
  44
  45         proc:::exec-failure
  46         /self->exec && args[0] == ENOENT/
  47         {
  48                 exit(0);
  49         }
  50 EOF
  51 }
  52
  53 sleeper()
  54 {
  55         while true; do
  56                 /usr/bin/sleep 1
  57                 $badexec
  58         done
  59 }
  60
  61 if [ $# != 1 ]; then
  62         echo expected one argument: '<'dtrace-path'>'
  63         exit 2
  64 fi
  65
  66 badexec=/tmp/execfail.ENOENT.ksh.$$
  67 dtrace=$1
  68
  69 cat > $badexec <<EOF
  70 #!/this_is_a_bogus_interpreter
  71 EOF
  72
  73 chmod +x $badexec
  74
  75 sleeper &
  76 child=$!
  77
  78 script
  79 status=$?
  80
  81 kill $child
  82 rm $badexec
  83
  84 exit $status