X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..c910b4d9d2451126ae3917b931cd4390c11e1d52:/bsd/sys/tty.h?ds=sidebyside

diff --git a/bsd/sys/tty.h b/bsd/sys/tty.h
index e49a9dbf2..97178a419 100644
--- a/bsd/sys/tty.h
+++ b/bsd/sys/tty.h
@@ -138,6 +138,8 @@ struct tty {
 	int	t_gen;			/* Generation number. */
 };
 
+#define TTY_NULL (struct tty *)0
+
 #define	t_cc		t_termios.c_cc
 #define	t_cflag		t_termios.c_cflag
 #define	t_iflag		t_termios.c_iflag
@@ -241,13 +243,6 @@ struct speedtab {
 #define	TTY_BI		0x08000000	/* Break condition */
 
 #ifdef KERNEL
-/* Is tp controlling terminal for p? */
-#define	isctty(p, tp)							\
-	((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT)
-
-/* Is p in background of tp? */
-#define	isbackground(p, tp)						\
-	(isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp)
 
 /* Unique sleep addresses. */
 #define	TSA_CARR_ON(tp)		((void *)&(tp)->t_rawq)