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[HURD PATCH 4/7] Hurd dl-origin.c: start with a copy of elf/dl-origin.c
- From: Jeremie Koenig <jk at jk dot fr dot eu dot org>
- To: libc-alpha at sourceware dot org,bug-hurd at gnu dot org
- Cc: Jeremie Koenig <jk at jk dot fr dot eu dot org>
- Date: Wed, 17 Aug 2011 21:35:29 +0200
- Subject: [HURD PATCH 4/7] Hurd dl-origin.c: start with a copy of elf/dl-origin.c
- References: <1313609732-12203-1-git-send-email-jk@jk.fr.eu.org>
* sysdeps/mach/hurd/dl-origin.c: New file, copy elf/dl-origin.c.
---
sysdeps/mach/hurd/dl-origin.c | 51 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 51 insertions(+), 0 deletions(-)
create mode 100644 sysdeps/mach/hurd/dl-origin.c
diff --git a/sysdeps/mach/hurd/dl-origin.c b/sysdeps/mach/hurd/dl-origin.c
new file mode 100644
index 0000000..8761937
--- /dev/null
+++ b/sysdeps/mach/hurd/dl-origin.c
@@ -0,0 +1,51 @@
+/* Find path of executable.
+ Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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;
+}
--
1.7.5.4