1 files changed, 74 insertions, 0 deletions
diff --git a/tests/cksum/cksum.sh b/tests/cksum/cksum.sh
new file mode 100755
index 0000000..21869fa
--- /dev/null
+++ b/tests/cksum/cksum.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+# Validate cksum operation
+
+# Copyright (C) 2020-2023 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ cksum printf
+
+returns_ 1 cksum missing || fail=1
+
+{
+  for offset in $(seq -1 6); do
+    env printf $(env printf '\\%03o' $(seq 0 $offset));
+    env printf $(env printf '\\%03o' $(seq 0 255));
+  done
+} > in || framework_failure_
+
+cksum in > out || fail=1
+printf '%s\n' '4097727897 2077 in' > exp || framework_failure_
+compare exp out || fail=1
+
+# Make sure crc is correct for files larger than 128 bytes (4 fold pclmul)
+{
+  env printf $(env printf '\\%03o' $(seq 0 130));
+} > in || framework_failure_
+
+cksum in > out || fail=1
+printf '%s\n' '3800919234 131 in' > exp || framework_failure_
+compare exp out || fail=1
+
+# Make sure crc is correct for files larger than 32 bytes
+# but <128 bytes (1 fold pclmul)
+{
+  env printf $(env printf '\\%03o' $(seq 0 64));
+} > in || framework_failure_
+
+cksum in > out || fail=1
+printf '%s\n' '796287823 65 in' > exp || framework_failure_
+compare exp out || fail=1
+
+# Make sure crc is still handled correctly when next 65k buffer is read
+# (>32 bytes more than 65k)
+{
+  seq 1 12780
+} > in || framework_failure_
+
+cksum in > out || fail=1
+printf '%s\n' '3720986905 65574 in' > exp || framework_failure_
+compare exp out || fail=1
+
+# Make sure crc is still handled correctly when next 65k buffer is read
+# (>=128 bytes more than 65k)
+{
+  seq 1 12795
+} > in || framework_failure_
+
+cksum in > out || fail=1
+printf '%s\n' '4278270357 65664 in' > exp || framework_failure_
+compare exp out || fail=1
+
+Exit $fail