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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
set -e
ret=0
do_splice()
{
filename="$1"
bytes="$2"
expected="$3"
out=$(./splice_read "$filename" "$bytes" | cat)
if [ "$out" = "$expected" ] ; then
echo "ok: $filename $bytes"
else
echo "FAIL: $filename $bytes"
ret=1
fi
}
test_splice()
{
filename="$1"
full=$(cat "$filename")
two=$(echo "$full" | grep -m1 . | cut -c-2)
# Make sure full splice has the same contents as a standard read.
do_splice "$filename" 4096 "$full"
# Make sure a partial splice see the first two characters.
do_splice "$filename" 2 "$two"
}
# proc_single_open(), seq_read()
test_splice /proc/$$/limits
# special open, seq_read()
test_splice /proc/$$/comm
# proc_handler, proc_dointvec_minmax
test_splice /proc/sys/fs/nr_open
# proc_handler, proc_dostring
test_splice /proc/sys/kernel/modprobe
# proc_handler, special read
test_splice /proc/sys/kernel/version
if ! [ -d /sys/module/test_module/sections ] ; then
modprobe test_module
fi
# kernfs, attr
test_splice /sys/module/test_module/coresize
# kernfs, binattr
test_splice /sys/module/test_module/sections/.init.text
exit $ret
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