updates

1 files changed, 25 insertions, 0 deletions

diff --git a/liblfjail/path.hh b/liblfjail/path.hh
new file mode 100644
index 0000000..b7a4dcf
--- /dev/null
+++ b/liblfjail/path.hh
@@ -0,0 +1,25 @@
+/*
+ * This source code is released into the public domain.
+ */
+
+#ifndef	LFJAIL_PATH_HH
+#define	LFJAIL_PATH_HH
+
+#include <optional>
+#include <string>
+
+#include "fd.hh"
+
+namespace lfjail {
+
+/*
+ * Find an executable in $PATH. If $PATH is not set, use _PATH_DEFPATH
+ * from <paths.h>.  An empty path element is treated as ".".
+ *
+ * If the file is found, open it using O_EXEC and return the fd.
+ */
+auto find_in_path(std::string const &file) -> std::optional<fd>;
+
+} // namespace lfjail
+
+#endif	// !LFJAIL_PATH_HH