1 files changed, 12 insertions, 0 deletions
diff --git a/src/stdio/fileno.c b/src/stdio/fileno.c
new file mode 100644
index 00000000..a3af0ec2
--- /dev/null
+++ b/src/stdio/fileno.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include "nonstd/FILE.h"
+#include "nonstd/assert.h"
+
+int fileno(FILE * stream)
+{
+	ASSERT_NONNULL(stream);
+	return stream->fd;
+}
+/*
+POSIX(1)
+*/