tests/timeout/timeout-large-parameters.sh

   1 #!/bin/sh
   2 # Validate large timeout parameters
   3 # Separated from standard parameter testing due to kernel overflow bugs.
   4
   5 # Copyright (C) 2008-2025 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19
  20 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  21 print_ver_ timeout
  22 getlimits_
  23
  24 # It was seen on 32 bit Linux/HPPA and OpenIndiana 11
  25 # that a kernel time_t overflowing cause the timer to fire immediately.
  26 # This is still racy, but unlikely to cause an issue unless
  27 # timeout can't process the timer firing within 3 seconds.
  28 timeout $TIME_T_OFLOW sleep 3
  29 if test $? = 124; then
  30   skip_ 'timeout $TIME_T_OFLOW ..., timed out immediately!'
  31 fi
  32
  33 # timeout overflow
  34 timeout $UINT_OFLOW sleep 0 || fail=1
  35
  36 # timeout overflow
  37 timeout ${TIME_T_OFLOW}d sleep 0 || fail=1
  38
  39 # floating point notation
  40 timeout 2.34e+5d sleep 0 || fail=1
  41
  42 # floating point overflow
  43 timeout $LDBL_MAX sleep 0 || fail=1
  44 returns_ 125 timeout -- -$LDBL_MAX sleep 0 || fail=1
  45
  46 Exit $fail