blob: 3b2dbb39a7379e94daabb3f10d998e7bbac506b4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# ident "%Z%%M% %I% %E% SMI"
#
# This script tests that -- if a exec(2) fails -- the proc:::exec probe fires,
# followed by the proc:::exec-success probe (in a successful exec(2)). To
# circumvent any potential shell cleverness, this script generates exec
# failure by generating a file with a bogus interpreter. (It seems unlikely
# that a shell -- regardless of how clever it claims to be -- would bother to
# validate the interpreter before exec'ing.)
#
# If this fails, the script will run indefinitely; it relies on the harness
# to time it out.
#
script()
{
$dtrace -s /dev/stdin <<EOF
proc:::exec
/curpsinfo->pr_ppid == $child && args[0] == "$badexec"/
{
self->exec = 1;
}
proc:::exec_failure
/self->exec/
{
exit(0);
}
EOF
}
sleeper()
{
while true; do
/bin/sleep 1
$badexec
done
}
if [ $# != 1 ]; then
echo expected one argument: '<'dtrace-path'>'
exit 2
fi
badexec=/tmp/execfail.ksh.$$
dtrace=$1
cat > $badexec <<EOF
#!/this_is_a_bogus_interpreter
EOF
chmod +x $badexec
sleeper &
child=$!
script
status=$?
kill $child
rm $badexec
exit $status
|