tests/misc/tac-2-nonseekable.sh

   1 #!/bin/sh
   2 # ensure that tac works with non-seekable or quasi-seekable inputs
   3
   4 # Copyright (C) 2011-2019 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ tac
  21
  22 echo x | tac - - > out 2> err || fail=1
  23 echo x > exp || framework_failure_
  24 compare exp out || fail=1
  25 compare /dev/null err || fail=1
  26
  27 # Make sure it works on funny files in /proc and /sys.
  28
  29 for file in /proc/version /sys/kernel/profiling; do
  30   if test -r $file; then
  31     cp -f $file copy &&
  32     tac copy > exp1 || framework_failure_
  33
  34     tac $file > out1 || fail=1
  35     compare exp1 out1 || fail=1
  36   fi
  37 done
  38
  39 # This failed due to heap corruption from v8.15-v8.25 inclusive.
  40 returns_ 1 tac - - <&- 2>err || fail=1
  41
  42 Exit $fail