1 /* Find path of executable.
2 Copyright (C) 1998-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
22 #include <sys/param.h>
31 char *result = (char *) -1;
32 /* We use the environment variable LD_ORIGIN_PATH. If it is set make
33 a copy and strip out trailing slashes. */
34 if (GLRO(dl_origin_path) != NULL)
36 size_t len = strlen (GLRO(dl_origin_path));
37 result = (char *) malloc (len + 1);
42 char *cp = __mempcpy (result, GLRO(dl_origin_path), len);
43 while (cp > result + 1 && cp[-1] == '/')