2 files changed, 22 insertions, 2 deletions
diff --git a/lib/tctl/tctl.c b/lib/tctl/tctl.c
index 54034f4..187d1a9 100644
--- a/lib/tctl/tctl.c
+++ b/lib/tctl/tctl.c
@@ -3,16 +3,24 @@
 
 #define GET_WIN_SIZE 0x5413
 #define SET_WIN_SIZE 0x5414
+#define TC_GET_ATTR  0x5401
 
 window_size_t tctl_get_window_size()
 {
 	window_size_t ws;
-	ioctl(0, GET_WIN_SIZE, &ws);
+	ioctl(1, GET_WIN_SIZE, &ws);
 	return ws;
 }
 
 
 void tctl_set_window_size(window_size_t size)
 {
-	ioctl(0, SET_WIN_SIZE, &size);
+	ioctl(1, SET_WIN_SIZE, &size);
+}
+
+
+int isatty()
+{
+	termios_t term;
+	return ioctl(1, TC_GET_ATTR, &term) == 0;
 }
diff --git a/lib/tctl/tctl.h b/lib/tctl/tctl.h
index d106818..bdcdb66 100644
--- a/lib/tctl/tctl.h
+++ b/lib/tctl/tctl.h
@@ -8,7 +8,19 @@ typedef struct {
 	unsigned short int ws_ypixel;
 } window_size_t;
 
+typedef struct {
+	unsigned int  c_iflag;
+	unsigned int  c_oflag;
+	unsigned int  c_cflag;
+	unsigned int  c_lflag;
+	unsigned char c_line;
+	unsigned char c_cc[32];
+	unsigned int  c_ispeed;
+	unsigned int  c_ospeed;
+} termios_t;
+
 window_size_t tctl_get_window_size();
 void          tctl_set_window_size(window_size_t size);
+int           isatty();
 
 #endif