#!/bin/sh
#
# Force legacy printstrn/umoven using process_vm_readv fault injection.
#
# Copyright (c) 2017-2021 Dmitry V. Levin <ldv@strace.io>
# All rights reserved.
#
# SPDX-License-Identifier: GPL-2.0-or-later

. "${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"