Redirect stdin from /dev/null for -ok and -okdir.

1 files changed, 37 insertions, 0 deletions

diff --git a/util.h b/util.h
new file mode 100644
index 0000000..c3b3dbe
--- /dev/null
+++ b/util.h
@@ -0,0 +1,37 @@
+/*********************************************************************
+ * bfs                                                               *
+ * Copyright (C) 2016 Tavian Barnes <tavianator@tavianator.com>      *
+ *                                                                   *
+ * This program is free software. It comes without any warranty, to  *
+ * the extent permitted by applicable law. You can redistribute it   *
+ * and/or modify it under the terms of the Do What The Fuck You Want *
+ * To Public License, Version 2, as published by Sam Hocevar. See    *
+ * the COPYING file or http://www.wtfpl.net/ for more details.       *
+ *********************************************************************/
+
+#ifndef BFS_UTIL_H
+#define BFS_UTIL_H
+
+#include <stdbool.h>
+
+/**
+ * Check if a file descriptor is open.
+ */
+bool isopen(int fd);
+
+/**
+ * Open a file and redirect it to a particular descriptor.
+ *
+ * @param fd
+ *         The file descriptor to redirect.
+ * @param path
+ *         The path to open.
+ * @param flags
+ *         The flags passed to open().
+ * @param mode
+ *         The mode passed to open() (optional).
+ * @return fd on success, -1 on failure.
+ */
+int redirect(int fd, const char *path, int flags, ...);
+
+#endif // BFS_UTIL_H