tests/misc/write-errors.sh

   1 #!/bin/sh
   2 # Make sure all of these programs promptly diagnose write errors.
   3
   4 # Copyright (C) 2023-2024 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_ timeout
  21
  22 if ! test -w /dev/full || ! test -c /dev/full; then
  23   skip_ '/dev/full is required'
  24 fi
  25
  26 # Writers that may output data indefinitely
  27 # First word in command line is checked against built programs
  28 echo "\
  29 cat /dev/zero
  30 comm -z /dev/zero /dev/zero
  31 cut -z -c1- /dev/zero
  32 cut -z -f1- /dev/zero
  33 dd if=/dev/zero
  34 expand /dev/zero
  35 factor --version; yes 1 | factor
  36 # TODO: fmt /dev/zero
  37 # TODO: fold -b /dev/zero
  38 head -z -n-1 /dev/zero
  39 join -a 1 -z /dev/zero /dev/null
  40 # TODO: nl --version; yes | nl
  41 # TODO: numfmt --version; yes 1 | numfmt
  42 od -v /dev/zero
  43 paste /dev/zero
  44 # TODO: pr /dev/zero
  45 seq inf
  46 tail -n+1 -z /dev/zero
  47 tee < /dev/zero
  48 tr . . < /dev/zero
  49 unexpand /dev/zero
  50 uniq -z -D /dev/zero
  51 yes
  52 " |
  53 sort -k 1b,1 > all_writers || framework_failure_
  54
  55 printf '%s\n' $built_programs |
  56 sort -k 1b,1 > built_programs || framework_failure_
  57
  58 join all_writers built_programs > built_writers || framework_failure_
  59
  60 while read writer; do
  61   # Enforce mem usage limits if possible
  62   cmd=$(printf '%s\n' "$writer" | cut -d ' ' -f1) || framework_failure_
  63   base_mem=$(get_min_ulimit_v_ $cmd --version) \
  64     && ulimit="ulimit -v $(($base_mem+8000))" \
  65     || ulimit='true'
  66
  67   # Check /dev/full handling
  68   rm -f full.err || framework_failure_
  69   timeout 10 $SHELL -c "($ulimit && $writer 2>full.err >/dev/full)"
  70   { test $? = 124 || ! grep 'space' full.err >/dev/null; } &&
  71    { fail=1; cat full.err; echo "$writer: failed to exit" >&2; }
  72
  73   # Check closed pipe handling
  74   rm -f pipe.err || framework_failure_
  75   timeout 10 $SHELL -c "($ulimit && $writer 2>pipe.err | :)"
  76   { test $? = 0 && compare /dev/null pipe.err; } ||
  77    { fail=1; cat pipe.err; echo "$writer: failed to write to closed pipe" >&2; }
  78 done < built_writers
  79
  80 Exit $fail