1#!/bin/ksh -p
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 2006 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2012 by Delphix. All rights reserved.
30#
31
32############################################################################
33# ASSERTION:
34#
35#	To verify egid of current process
36#
37#
38# SECTION: Scripting
39#
40############################################################################
41
42if [ $# != 1 ]; then
43	echo expected one argument: '<'dtrace-path'>'
44	exit 2
45fi
46
47dtrace=$1
48bname=`/bin/basename $0`
49dfilename=/var/tmp/$bname.$$.d
50
51## Create .d file
52##########################################################################
53cat > $dfilename <<-EOF
54#!$dtrace -qs
55
56
57BEGIN
58/\$egid != \$1/
59{
60	exit(1);
61}
62
63BEGIN
64/\$egid == \$1/
65{
66	exit(0);
67}
68EOF
69##########################################################################
70
71
72#chmod 555 the .d file
73
74chmod 555 $dfilename >/dev/null 2>&1
75if [ $? -ne 0 ]; then
76	print -u2 "chmod $dfilename failed"
77	exit 1
78fi
79
80#Get the groupid of the calling process using ps
81
82groupid=`ps -o pid,gid | grep "$$ " | awk '{print $2}' 2>/dev/null`
83if [ $? -ne 0 ]; then
84	print -u2 "unable to get uid of the current process with pid = $$"
85	exit 1
86fi
87
88#Pass groupid as argument to .d file
89$dfilename $groupid >/dev/null 2>&1
90
91if [ $? -ne 0 ]; then
92	print -u2 "Error in executing $dfilename"
93	exit 1
94fi
95
96#Cleanup leftovers
97
98/usr/bin/rm -f $dfilename
99exit 0
100