4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
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.
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]
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
33 #include "zfs_config.h"
35 #ifndef HAVE_GETEXECNAME
37 const char *getexecname()
40 static char execname[PATH_MAX + 1];
42 static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
44 pthread_mutex_lock(&mtx);
46 if (strlen(execname) == 0) {
47 ssize_t rc = readlink("/proc/self/exe", execname, sizeof(execname - 1));
50 pthread_mutex_unlock(&mtx);
55 pthread_mutex_unlock(&mtx);