bsd/kern/tty.c

7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
37  * Redistribution and use in source and binary forms, with or without
42  * 2. Redistributions in binary form must reproduce the above copyright
43  *    notice, this list of conditions and the following disclaimer in the
69  *	o Fix races for sending the start char in ttyflush().
70  *	o Handle inter-byte timeout for "MIN > 0, TIME > 0" in ttyselect().
73  *	o Don't allow input in TS_ZOMBIE case.  It would be visible through
79  *	o Wrap most of ttioctl in spltty/splx.
84  *	  and ignore them if they are set while we are in another
87  *	  of in drivers and fix drivers that write to tp->t_termios.
91  *	o Restore TS_WOPEN since it is useful in pstat.  It must be cleared
240 termios32to64(struct termios32 *in, struct user_termios *out)
242 	out->c_iflag = (user_tcflag_t)in->c_iflag;
243 	out->c_oflag = (user_tcflag_t)in->c_oflag;
244 	out->c_cflag = (user_tcflag_t)in->c_cflag;
245 	out->c_lflag = (user_tcflag_t)in->c_lflag;
248 	bcopy(in->c_cc, out->c_cc, sizeof(in->c_cc));
250 	out->c_ispeed = (user_speed_t)in->c_ispeed;
251 	out->c_ospeed = (user_speed_t)in->c_ospeed;
255 termios64to32(struct user_termios *in, struct termios32 *out)
257 	out->c_iflag = (tcflag_t)in->c_iflag;
258 	out->c_oflag = (tcflag_t)in->c_oflag;
259 	out->c_cflag = (tcflag_t)in->c_cflag;
260 	out->c_lflag = (tcflag_t)in->c_lflag;
263 	bcopy(in->c_cc, out->c_cc, sizeof(in->c_cc));
265 	out->c_ispeed = (speed_t)in->c_ispeed;
266 	out->c_ospeed = (speed_t)in->c_ospeed;
284  *		This function is called early in bsd_init(), prior to the
422  * the flush in case there are buggy callers.
634 				 * SAFE: scheduler executing threads in
806 	 * Put data char in q for user and
1028  *					stub in user space
1049  *		point, we should just in-line ttcompat() here.
1063 	/* If the ioctl involves modification, signal if in the background. */
1116 			 * process, that's handled in the signal sending code.
1225 	case TIOCSETAF_32:		/* drn out, fls in, set */
1227 	{		/* drn out, fls in, set */
1248 #endif	/* 0 - leave in; may end up being a conformance issue */
1299 				 * ICANON while we're in a non-termios line
1387 		/* Session ctty vnode pointer set in vnode layer. */
1603  *					stub in user space
1713 				 * XXX wait a bit in the hope that the stop
1717 				 * put in a special queue.  Don't bother with
1718 				 * the checks in ttywait() since the timeout
1740  * Copy in the default termios characters.
1744  * Notes:	No assertion; tp is not in scope.
1756  * XXX the stop character should be put in a special high priority queue.
1776  * XXX the start character should be put in a special high priority queue.
1964 	 * Signal the process if it's in the background.
1996 		 * process, that's handled in the signal sending code.
2047 		t *= 100000;		/* time in us */
2183 			 * SAFE: under us in the "goto loop" case.
2198 		 * Interpret EOF only in canonical mode.
2243  * Notes:	This function is called from tprintf() in subr_prf.c
2317 	 * Signal the process if it's in the background.
2347 		 * process, that's handled in the signal sending code.
2353 	 * Process the user's data in at most OBUFSIZ chunks.  Perform any
2355 	 * overflow awaiting device aid in acquiring new space.
2382 		 * bits in char_type), call ttyoutput.  After processing
2414 			 * If there are any further characters in this
2456 	 * This can only occur if FLUSHO is set in t_lflag,
2666 		 * XXX: since the process we intend to wakeup is in the
2708  * Look up a code for a specified speed in a conversion table;
2753 /* XXX Should be in Mach header <kern/thread.h>, but doesn't work */
2804 	/* first process in process group */
2962  * Notes:	Only ever called from putchar() in subr_prf.c
2990  *		wmesg			Wait message; shows up in debugger,
2991  *					should show up in "ps", but doesn't
2997  *					stub in user space