xref: /freebsd/sys/contrib/openzfs/lib/libspl/os/linux/getexecname.c (revision 61145dc2b94f12f6a47344fb9aac702321880e43)
1 // SPDX-License-Identifier: CDDL-1.0
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, Version 1.0 only
7  * (the "License").  You may not use this file except in compliance
8  * with the License.
9  *
10  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
11  * or https://opensource.org/licenses/CDDL-1.0.
12  * See the License for the specific language governing permissions
13  * and limitations under the License.
14  *
15  * When distributing Covered Code, include this CDDL HEADER in each
16  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
17  * If applicable, add the following below this CDDL HEADER, with the
18  * fields enclosed by brackets "[]" replaced with your own identifying
19  * information: Portions Copyright [yyyy] [name of copyright owner]
20  *
21  * CDDL HEADER END
22  */
23 
24 #include <limits.h>
25 #include <stdint.h>
26 #include <unistd.h>
27 #include "../../libspl_impl.h"
28 
29 __attribute__((visibility("hidden"))) ssize_t
getexecname_impl(char * execname)30 getexecname_impl(char *execname)
31 {
32 	return (readlink("/proc/self/exe", execname, PATH_MAX));
33 }
34