TIOCSCTTY (reference) in projects: xnu-11215.1.10

160 #define TIOCSCTTY        _IO('t', 97)           /* become controlling tty */  macro

1454 	case TIOCSCTTY:                 /* become controlling tty */  in ttioctl_locked()

4859 		(void)(*fp->fp_glob->fg_ops->fo_ioctl)(fp, (int)TIOCSCTTY,  in open1()

/xnu-11215.1.10/bsd/sys/
H A D	ttycom.h	`160 #define TIOCSCTTY _IO('t', 97) /* become controlling tty */ macro`
/xnu-11215.1.10/bsd/kern/
H A D	tty_tty.c	`209 if (cmd == TIOCSCTTY) { /* don't allow controlling tty to be set */ in cttyioctl()`
H A D	tty.c	`1454 case TIOCSCTTY: /* become controlling tty */ in ttioctl_locked()`
/xnu-11215.1.10/bsd/vfs/
H A D	vfs_vnops.c	`1760 if (error == 0 && com == TIOCSCTTY) { in vn_ioctl()`
H A D	vfs_syscalls.c	`4859 (void)(*fp->fp_glob->fg_ops->fo_ioctl)(fp, (int)TIOCSCTTY, in open1()`