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-rw-r--r--debug/getcwd_chk.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/debug/getcwd_chk.c b/debug/getcwd_chk.c
new file mode 100644
index 0000000..9e14a01
--- /dev/null
+++ b/debug/getcwd_chk.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/param.h>
+
+
+char *
+__getcwd_chk (char *buf, size_t size, size_t buflen)
+{
+ char *res = __getcwd (buf, MIN (size, buflen));
+ if (res == NULL && errno == ERANGE && size > buflen)
+ __chk_fail ();
+ return res;
+}