#!/bin/sh
#
# Force legacy printstrn/umoven using process_vm_readv fault injection.
#
# Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

. "${srcdir=.}/scno_tampering.sh"

> "$LOG" || fail_ "failed to write $LOG"
fault_args='-qq -esignal=none -etrace=process_vm_readv -efault=process_vm_readv'
args='../printstrn-umoven-peekdata'

$STRACE -o "$LOG" $fault_args $args > /dev/null || {
	rc=$?
	if [ $rc -eq 77 ]; then
		skip_ "$fault_args $args exited with code 77"
	else
		fail_ "$fault_args $args failed with code $rc"
	fi
}

> "$LOG" || fail_ "failed to write $LOG"
args="-e signal=none -e trace=add_key $args skip-process_vm_readv-check"

$STRACE -o /dev/null $fault_args \
	$STRACE -o "$LOG" $args > "$EXP" ||
	dump_log_and_fail_with "$STRACE $args failed with code $?"

match_diff "$LOG" "$EXP"