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-rw-r--r--c/src/exec/libcsupport/src/chdir.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/chdir.c b/c/src/exec/libcsupport/src/chdir.c
new file mode 100644
index 0000000000..4acbc8cfe0
--- /dev/null
+++ b/c/src/exec/libcsupport/src/chdir.c
@@ -0,0 +1,50 @@
+/*
+ * chdir() - POSIX 1003.1b - 5.2.1 - Change Current Working Directory
+ *
+ * COPYRIGHT (c) 1989-1998.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#include <rtems.h>
+
+#include <unistd.h>
+#include <errno.h>
+
+#include "libio_.h"
+
+int chdir(
+ const char *pathname
+)
+{
+ rtems_filesystem_location_info_t loc;
+ int result;
+
+ /*
+ * Get the node where we wish to go.
+ */
+
+ result = rtems_filesystem_evaluate_path( pathname, 0, &loc, TRUE );
+ if ( result != 0 )
+ return -1;
+
+ /*
+ * Verify you can change directory into this node.
+ */
+
+ if ( !loc.ops->node_type )
+ set_errno_and_return_minus_one( ENOTSUP );
+
+ if ( (*loc.ops->node_type)( &loc ) != RTEMS_FILESYSTEM_DIRECTORY )
+ set_errno_and_return_minus_one( ENOTDIR );
+
+ rtems_filesystem_current = loc;
+
+ return 0;
+}