FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/lib/libspl/os/linux/getexecname.c

     /*
      * CDDL HEADER START
      *
      * The contents of this file are subject to the terms of the
      * Common Development and Distribution License, Version 1.0 only
      * (the "License").  You may not use this file except in compliance
      * with the License.
      *
      * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     * or https://opensource.org/licenses/CDDL-1.0.
     * See the License for the specific language governing permissions
     * and limitations under the License.
     *
     * When distributing Covered Code, include this CDDL HEADER in each
     * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     * If applicable, add the following below this CDDL HEADER, with the
     * fields enclosed by brackets "[]" replaced with your own identifying
     * information: Portions Copyright [yyyy] [name of copyright owner]
     *
     * CDDL HEADER END
     */
    
    #include <limits.h>
    #include <stdint.h>
    #include <unistd.h>
    #include "../../libspl_impl.h"
    
    __attribute__((visibility("hidden"))) ssize_t
    getexecname_impl(char *execname)
    {
            return (readlink("/proc/self/exe", execname, PATH_MAX));
    }

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