tests/cksum/sum-sysv.sh

   1 #!/bin/sh
   2 # make sure 'sum -s' works for input whose sum of bytes is larger than 2^32
   3
   4 # Copyright (C) 2001-2024 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 # Avoid a problem when run in a UTF-8 locale.
  20 # Otherwise, Perl would try to (and fail to) interpret
  21 # each string below as a sequence of multi-byte characters.
  22 LC_ALL=C
  23 export LC_ALL
  24
  25 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  26 print_ver_ sum
  27
  28 require_perl_
  29
  30 # FYI, 16843009 is floor (2^32 / 255).
  31
  32 # aka: perl -e 'print chr(255) x 16843009'
  33 $PERL -e '$s = chr(255) x 65537; foreach (1..257) {print $s}' \
  34   | sum -s > out || fail=1
  35 cat > exp <<\EOF
  36 65535 32897
  37 EOF
  38 compare exp out || fail=1
  39
  40 rm -f out exp
  41
  42 # aka: perl -e 'print chr(255) x 16843010'
  43 $PERL -e '$s = chr(255) x 65537; foreach (1..257) {print $s}; print chr(255)' \
  44   | sum -s > out || fail=1
  45 cat > exp <<\EOF
  46 254 32897
  47 EOF
  48 compare exp out || fail=1
  49
  50 Exit $fail