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authorRoland McGrath <roland@gnu.org>1991-09-27 04:02:40 +0000
committerRoland McGrath <roland@gnu.org>1991-09-27 04:02:40 +0000
commita3f7e6692840431d71643a02ec382017e66e5e33 (patch)
tree2a78cfe674d871a67e5cfc749fd3f4909e0b0480 /io
parent7eaf1d8dd08f1f4fb10f19d7d1102e34b2400848 (diff)
Initial revision
Diffstat (limited to 'io')
-rw-r--r--io/getwd.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/io/getwd.c b/io/getwd.c
new file mode 100644
index 0000000000..c23bff3b9e
--- /dev/null
+++ b/io/getwd.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Put the absolute pathname of the current working direction in BUF.
+ If successful, return BUF. If not, put an error message in
+ BUF and return NULL. BUF should be at least PATH_MAX bytes long. */
+char *
+DEFUN(getwd, (buf), char *buf)
+{
+ if (buf == NULL)
+ {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ if (getcwd (buf, PATH_MAX) == NULL)
+ {
+ (void) strncpy (buf, strerror (errno), PATH_MAX);
+ return NULL;
+ }
+
+ return buf;
+}