1#!/bin/sh
2#
3# Force legacy printstrn/umoven using process_vm_readv fault injection.
4#
5# Copyright (c) 2017 Dmitry V. Levin <ldv@altlinux.org>
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16# 3. The name of the author may not be used to endorse or promote products
17#    derived from this software without specific prior written permission.
18#
19# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30. "${srcdir=.}/scno_tampering.sh"
31
32> "$LOG" || fail_ "failed to write $LOG"
33fault_args='-qq -esignal=none -etrace=process_vm_readv -efault=process_vm_readv'
34args='../printstrn-umoven-peekdata'
35
36$STRACE -o "$LOG" $fault_args $args > /dev/null || {
37	rc=$?
38	if [ $rc -eq 77 ]; then
39		skip_ "$fault_args $args exited with code 77"
40	else
41		fail_ "$fault_args $args failed with code $rc"
42	fi
43}
44
45> "$LOG" || fail_ "failed to write $LOG"
46args="-e signal=none -e trace=add_key $args skip-process_vm_readv-check"
47
48$STRACE -o /dev/null $fault_args \
49	$STRACE -o "$LOG" $args > "$EXP" ||
50	dump_log_and_fail_with "$STRACE $args failed with code $?"
51
52match_diff "$LOG" "$EXP"
53