mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* Find path of executable.
|
|
Copyright (C) 1998-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/param.h>
|
|
#include <ldsodefs.h>
|
|
|
|
#include <dl-dst.h>
|
|
|
|
|
|
const char *
|
|
_dl_get_origin (void)
|
|
{
|
|
char *result = (char *) -1;
|
|
/* We use the environment variable LD_ORIGIN_PATH. If it is set make
|
|
a copy and strip out trailing slashes. */
|
|
if (GLRO(dl_origin_path) != NULL)
|
|
{
|
|
size_t len = strlen (GLRO(dl_origin_path));
|
|
result = (char *) malloc (len + 1);
|
|
if (result == NULL)
|
|
result = (char *) -1;
|
|
else
|
|
{
|
|
char *cp = __mempcpy (result, GLRO(dl_origin_path), len);
|
|
while (cp > result + 1 && cp[-1] == '/')
|
|
--cp;
|
|
*cp = '\0';
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|