tests/cksum/cksum.sh

   1 #!/bin/sh
   2 # Validate cksum operation
   3
   4 # Copyright (C) 2020-2023 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_ cksum printf
  21
  22 returns_ 1 cksum missing || fail=1
  23
  24 {
  25   for offset in $(seq -1 6); do
  26     env printf $(env printf '\\%03o' $(seq 0 $offset));
  27     env printf $(env printf '\\%03o' $(seq 0 255));
  28   done
  29 } > in || framework_failure_
  30
  31 cksum in > out || fail=1
  32 printf '%s\n' '4097727897 2077 in' > exp || framework_failure_
  33 compare exp out || fail=1
  34
  35 # Make sure crc is correct for files larger than 128 bytes (4 fold pclmul)
  36 {
  37   env printf $(env printf '\\%03o' $(seq 0 130));
  38 } > in || framework_failure_
  39
  40 cksum in > out || fail=1
  41 printf '%s\n' '3800919234 131 in' > exp || framework_failure_
  42 compare exp out || fail=1
  43
  44 # Make sure crc is correct for files larger than 32 bytes
  45 # but <128 bytes (1 fold pclmul)
  46 {
  47   env printf $(env printf '\\%03o' $(seq 0 64));
  48 } > in || framework_failure_
  49
  50 cksum in > out || fail=1
  51 printf '%s\n' '796287823 65 in' > exp || framework_failure_
  52 compare exp out || fail=1
  53
  54 # Make sure crc is still handled correctly when next 65k buffer is read
  55 # (>32 bytes more than 65k)
  56 {
  57   seq 1 12780
  58 } > in || framework_failure_
  59
  60 cksum in > out || fail=1
  61 printf '%s\n' '3720986905 65574 in' > exp || framework_failure_
  62 compare exp out || fail=1
  63
  64 # Make sure crc is still handled correctly when next 65k buffer is read
  65 # (>=128 bytes more than 65k)
  66 {
  67   seq 1 12795
  68 } > in || framework_failure_
  69
  70 cksum in > out || fail=1
  71 printf '%s\n' '4278270357 65664 in' > exp || framework_failure_
  72 compare exp out || fail=1
  73
  74 Exit $fail