1 files changed, 10 insertions, 0 deletions
diff --git a/lib/libc/unistd/isatty.c b/lib/libc/unistd/isatty.c
new file mode 100644
index 00000000..afb15460
--- /dev/null
+++ b/lib/libc/unistd/isatty.c
@@ -0,0 +1,10 @@
+#include <termios.h>
+#include <unistd.h>
+#include <syscall.h>
+#include <asm-generic/ioctls.h>
+
+int isatty(int fildes)
+{
+	struct winsize winsize;
+	return 1 + syscall(ioctl, fildes, TIOCGWINSZ, &winsize);
+}