xref: /freebsd/sys/contrib/openzfs/lib/libspl/os/linux/getexecname.c (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1 /*
2  * CDDL HEADER START
3  *
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
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or https://opensource.org/licenses/CDDL-1.0.
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 #include <limits.h>
24 #include <stdint.h>
25 #include <unistd.h>
26 #include "../../libspl_impl.h"
27 
28 __attribute__((visibility("hidden"))) ssize_t
29 getexecname_impl(char *execname)
30 {
31 	return (readlink("/proc/self/exe", execname, PATH_MAX));
32 }
33