xref: /illumos-gate/usr/src/cmd/dtrace/test/tst/common/usdt/tst.corruptenv.ksh (revision 581cede61ac9c14d8d4ea452562a567189eead78)
1#!/usr/bin/ksh
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# This test verifies that a program that corrupts its own environment
30# without inducing a crash does not crash solely due to drti.o's use of
31# getenv(3C).
32#
33
34PATH=/usr/bin:/usr/sbin:$PATH
35
36if (( $# != 1 )); then
37	print -u2 'expected one argument: <dtrace-path>'
38	exit 2
39fi
40
41#
42# jdtrace does not implement the -h option that is required to generate
43# C header files.
44#
45if [[ "$1" == */jdtrace ]]; then
46	exit 0
47fi
48
49dtrace="$1"
50startdir="$PWD"
51dir=$(mktemp -td drtiXXXXXX)
52if (( $? != 0 )); then
53	print -u2 'Could not create safe temporary directory'
54	exit 2
55fi
56
57cd "$dir"
58
59cat > Makefile <<EOF
60all: main
61
62main: main.o prov.o
63	\$(CC) -o main main.o prov.o
64
65main.o: main.c prov.h
66	\$(CC) -c main.c
67
68prov.h: prov.d
69	$dtrace -h -s prov.d
70
71prov.o: prov.d main.o
72	$dtrace -G -32 -s prov.d main.o
73EOF
74
75cat > prov.d <<EOF
76provider tester {
77	probe entry();
78};
79EOF
80
81cat > main.c <<EOF
82#include <stdlib.h>
83#include <sys/sdt.h>
84#include "prov.h"
85
86int
87main(int argc, char **argv, char **envp)
88{
89	envp[0] = (char*)0xff;
90	TESTER_ENTRY();
91	return 0;
92}
93EOF
94
95make > /dev/null
96status=$?
97if (( $status != 0 )) ; then
98	print -u2 "failed to build"
99else
100	./main
101	status=$?
102fi
103
104cd "$startdir"
105rm -rf "$dir"
106
107exit $status
108