/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Copyright (c) 2019 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
/*-
*/
/*
- * mapping routines for old line discipline (yuck)
+ * Compatibility routines for BSD 4.3 tty ioctl() commands
+ *
+ * The only function externalized from this file is ttcompat() and it is
+ * externalized as private extern to prevent exporting of the symbol when
+ * KEXTs link against the kernel.
+ *
+ * Locks: All functions in this file assume that the tty_lock()
+ * is held on the tty structure before these functions are
+ * called.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
-#include <sys/proc.h>
+#include <sys/proc_internal.h>
#include <sys/tty.h>
#include <sys/termios.h>
-#include <sys/file.h>
+#include <sys/file_internal.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/syslog.h>
-/* NeXT Move define down here cause COMPAT_43 not valid earlier */
-#if COMPAT_43 || defined(COMPAT_SUNOS)
-
-static int ttcompatgetflags __P((struct tty *tp));
-static void ttcompatsetflags __P((struct tty *tp, struct termios *t));
-static void ttcompatsetlflags __P((struct tty *tp, struct termios *t));
-static int ttcompatspeedtab __P((int speed, struct speedtab *table));
-
-
-static int ttydebug = 0;
-
-#ifndef NeXT
-SYSCTL_INT(_debug, OID_AUTO, ttydebug, CTLFLAG_RW, &ttydebug, 0, "");
-#endif
+static int ttcompatgetflags(struct tty *tp);
+static void ttcompatsetflags(struct tty *tp, struct termios *t);
+static void ttcompatsetlflags(struct tty *tp, struct termios *t);
+static int ttcompatspeedtab(int speed, struct speedtab *table);
+/*
+ * These two tables encode baud rate to speed code and speed code to
+ * baud rate information. They are a mapping between the <sys/termios.h>
+ * baud rate constants and the <sys/ttydev.h> baud rate constants. We
+ * cannot use those constants directly here because they occupy the same
+ * name space.
+ */
static struct speedtab compatspeeds[] = {
-#define MAX_SPEED 17
- { 115200, 17 },
- { 57600, 16 },
- { 38400, 15 },
- { 19200, 14 },
- { 9600, 13 },
- { 4800, 12 },
- { 2400, 11 },
- { 1800, 10 },
- { 1200, 9 },
- { 600, 8 },
- { 300, 7 },
- { 200, 6 },
- { 150, 5 },
- { 134, 4 },
- { 110, 3 },
- { 75, 2 },
- { 50, 1 },
- { 0, 0 },
- { -1, -1 },
+#define MAX_SPEED 17
+ { .sp_speed = 115200, .sp_code = 17 },
+ { .sp_speed = 57600, .sp_code = 16 },
+ { .sp_speed = 38400, .sp_code = 15 },
+ { .sp_speed = 19200, .sp_code = 14 },
+ { .sp_speed = 9600, .sp_code = 13 },
+ { .sp_speed = 4800, .sp_code = 12 },
+ { .sp_speed = 2400, .sp_code = 11 },
+ { .sp_speed = 1800, .sp_code = 10 },
+ { .sp_speed = 1200, .sp_code = 9 },
+ { .sp_speed = 600, .sp_code = 8 },
+ { .sp_speed = 300, .sp_code = 7 },
+ { .sp_speed = 200, .sp_code = 6 },
+ { .sp_speed = 150, .sp_code = 5 },
+ { .sp_speed = 134, .sp_code = 4 },
+ { .sp_speed = 110, .sp_code = 3 },
+ { .sp_speed = 75, .sp_code = 2 },
+ { .sp_speed = 50, .sp_code = 1 },
+ { .sp_speed = 0, .sp_code = 0 },
+ { .sp_speed = -1, .sp_code = -1 },
};
static int compatspcodes[] = {
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
};
+/*
+ * ttcompatspeedtab
+ *
+ * Description: Given a baud rate value as an integer, and a speed table,
+ * convert the baud rate to a speed code, according to the
+ * contents of the table. This effectively changes termios.h
+ * baud rate values into ttydev.h baud rate codes.
+ *
+ * Parameters: int speed Baud rate, as an integer
+ * struct speedtab *table Baud rate table to speed code table
+ *
+ * Returns: 1 B50 speed code; returned if we can
+ * not find an answer in the table.
+ * 0 If a 0 was requested in order to
+ * trigger a hangup (250ms of line
+ * silence, per Bell 103C standard).
+ * * A speed code matching the requested
+ * baud rate (potentially rounded down,
+ * if there is no exact match).
+ *
+ * Notes: This function is used for TIOCGETP, TIOCSETP, and TIOCSETN.
+ */
static int
-ttcompatspeedtab(speed, table)
- int speed;
- register struct speedtab *table;
+ttcompatspeedtab(int speed, struct speedtab *table)
{
- if (speed == 0)
- return (0); /* hangup */
- for ( ; table->sp_speed > 0; table++)
- if (table->sp_speed <= speed) /* nearest one, rounded down */
- return (table->sp_code);
- return (1); /* 50, min and not hangup */
+ if (speed == 0) {
+ return 0; /* hangup */
+ }
+ for (; table->sp_speed > 0; table++) {
+ if (table->sp_speed <= speed) { /* nearest one, rounded down */
+ return table->sp_code;
+ }
+ }
+ return 1; /* 50, min and not hangup */
}
-#ifndef NeXT
-int
-ttsetcompat(tp, com, data, term)
- register struct tty *tp;
- int *com;
- caddr_t data;
- struct termios *term;
-#else
-__private_extern__ int
-ttsetcompat(tp, com, data, term)
- register struct tty *tp;
- u_long *com;
- caddr_t data;
- struct termios *term;
-#endif /* !NeXT */
+
+/*
+ * ttsetcompat
+ *
+ * Description: Convert backward compatability set command arguments as
+ * follows:
+ *
+ * TIOCSETP -> TIOSETAF
+ * TIOCSETN -> TIOCSETA
+ * TIOCSETC -> TIOCSETA
+ * TIOCSLTC -> TIOCSETA
+ * TIOCLBIS -> TIOCSETA
+ * TIOCLBIC -> TIOCSETA
+ * TIOCLSET -> TIOCSETA
+ *
+ * The converted command argument and potentially modified 'term'
+ * argument are returned to ttcompat(), which will then call
+ * ttioctl_locked(), if this function returns successfully.
+ *
+ * Parameters struct tty *tp The tty on which the operation is
+ * being performed.
+ * u_long *com A pointer to the terminal input/output
+ * command being requested; its contents
+ * will be modified per the table above,
+ * on a non-error return.
+ * caddr_t data Command specific parameter data; this
+ * data is read but not modified.
+ * struct termios *term A local stack termios structure from
+ * ttcompat(), whose contents are to be
+ * modified based on *com and *data.
+ *
+ * Returns: EINVAL An input speed or output speed is
+ * outside the allowable range for a
+ * TIOCSETP or TIOCSETN command.
+ * 0 All other cases return 0.
+ *
+ * Notes: This function may modify the contents of the tp->t_flags
+ * field in a successful call to TIOCSETP, TIOCSETN, TIOCLBIS,
+ * TIOCLBIC, or TIOCLSET.
+ *
+ * All other tp fields will remain unmodifed, since the struct
+ * termios is a local stack copy from ttcompat(), and not the
+ * real thing. A subsequent call to ttioctl_locked() in
+ * ttcompat(), however, may result in subsequent changes.
+ *
+ * WARNING: This compatibility code is not 6/432 clean; it will only
+ * work for 32 bit processes on 32 bit kernels or 64 bit
+ * processes on 64 bit kernels. We are not addressing this
+ * due to <rdar://6904053>.
+ */
+static int
+ttsetcompat(struct tty *tp, u_long *com, caddr_t data, struct termios *term)
{
switch (*com) {
case TIOCSETP:
- case TIOCSETN: {
- register struct sgttyb *sg = (struct sgttyb *)data;
+ /*
+ * Wait for all characters queued for output to drain, then
+ * Discard all characters queued for input, and then set
+ * the input and output speeds and device flags, per the
+ * contents of the struct sgttyb that 'data' points to.
+ */
+ case TIOCSETN:
+ /*
+ * Same as TIOCSETP, but the output is not drained, and any
+ * pending input is not discarded.
+ */
+ {
+ struct sgttyb *sg = (struct sgttyb *)data;
int speed;
- if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
- return(EINVAL);
- else if (speed != ttcompatspeedtab(tp->t_ispeed, compatspeeds))
+ if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0) {
+ return EINVAL;
+ } else if (speed != ttcompatspeedtab(tp->t_ispeed, compatspeeds)) {
term->c_ispeed = compatspcodes[speed];
- else
+ } else {
term->c_ispeed = tp->t_ispeed;
- if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
- return(EINVAL);
- else if (speed != ttcompatspeedtab(tp->t_ospeed, compatspeeds))
+ }
+ if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0) {
+ return EINVAL;
+ } else if (speed != ttcompatspeedtab(tp->t_ospeed, compatspeeds)) {
term->c_ospeed = compatspcodes[speed];
- else
+ } else {
term->c_ospeed = tp->t_ospeed;
+ }
term->c_cc[VERASE] = sg->sg_erase;
term->c_cc[VKILL] = sg->sg_kill;
- tp->t_flags = (tp->t_flags&0xffff0000) | (sg->sg_flags&0xffff);
+ tp->t_flags = (tp->t_flags & 0xffff0000) | (sg->sg_flags & 0xffff);
ttcompatsetflags(tp, term);
*com = (*com == TIOCSETP) ? TIOCSETAF : TIOCSETA;
break;
}
- case TIOCSETC: {
+ case TIOCSETC:
+ /*
+ * Set the terminal control characters per the contents of
+ * the struct tchars that 'data' points to.
+ */
+ {
struct tchars *tc = (struct tchars *)data;
- register cc_t *cc;
+ cc_t *cc;
cc = term->c_cc;
cc[VINTR] = tc->t_intrc;
cc[VSTOP] = tc->t_stopc;
cc[VEOF] = tc->t_eofc;
cc[VEOL] = tc->t_brkc;
- if (tc->t_brkc == -1)
+ if (tc->t_brkc == -1) {
cc[VEOL2] = _POSIX_VDISABLE;
+ }
*com = TIOCSETA;
break;
}
- case TIOCSLTC: {
+ case TIOCSLTC:
+ /*
+ * Set the terminal control characters per the contents of
+ * the struct ltchars that 'data' points to.
+ */
+ {
struct ltchars *ltc = (struct ltchars *)data;
- register cc_t *cc;
+ cc_t *cc;
cc = term->c_cc;
cc[VSUSP] = ltc->t_suspc;
break;
}
case TIOCLBIS:
+ /*
+ * Set the bits in the terminal state local flags word
+ * (16 bits) for the terminal to the current bits OR
+ * those in the 16 bit value pointed to by 'data'.
+ */
case TIOCLBIC:
+ /*
+ * Clear the bits in the terminal state local flags word
+ * for the terminal to the current bits AND those bits NOT
+ * in the 16 bit value pointed to by 'data'.
+ */
case TIOCLSET:
- if (*com == TIOCLSET)
- tp->t_flags = (tp->t_flags&0xffff) | *(int *)data<<16;
- else {
+ /*
+ * Set the terminal state local flags word to exactly those
+ * bits that correspond to the 16 bit value pointed to by
+ * 'data'.
+ */
+ if (*com == TIOCLSET) {
+ tp->t_flags = (tp->t_flags & 0xffff) | *(int *)data << 16;
+ } else {
tp->t_flags =
- (ttcompatgetflags(tp)&0xffff0000)|(tp->t_flags&0xffff);
- if (*com == TIOCLBIS)
- tp->t_flags |= *(int *)data<<16;
- else
- tp->t_flags &= ~(*(int *)data<<16);
+ (ttcompatgetflags(tp) & 0xffff0000) | (tp->t_flags & 0xffff);
+ if (*com == TIOCLBIS) {
+ tp->t_flags |= *(int *)data << 16;
+ } else {
+ tp->t_flags &= ~(*(int *)data << 16);
+ }
}
ttcompatsetlflags(tp, term);
*com = TIOCSETA;
return 0;
}
+/*
+ * ttcompat
+ *
+ * Description: For 'set' commands, convert the command and arguments as
+ * necessary, and call ttioctl_locked(), returning the result
+ * as our result; for 'get' commands, obtain the requested data
+ * from the appropriate source, and return it in the expected
+ * format. If the command is not recognized, return EINVAL.
+ *
+ * Parameters struct tty *tp The tty on which the operation is
+ * being performed.
+ * u_long com The terminal input/output command
+ * being requested.
+ * caddr_t data The pointer to the user data argument
+ * provided with the command.
+ * int flag The file open flags (e.g. FREAD).
+ * struct proc *p The current process pointer for the
+ * operation.
+ *
+ * Returns: 0 Most 'get' operations can't fail, and
+ * therefore return this.
+ * ENOTTY TIOCGSID may return this when you
+ * attempt to get the session ID for a
+ * terminal with no associated session,
+ * or for which there is a session, but
+ * no session leader.
+ * ENOTTY If the command cannot be handled at
+ * this layer, this will be returned.
+ * * Any value returned by ttioctl_locked(),
+ * if a set command is requested.
+ *
+ * Notes: The process pointer may be a proxy on whose behalf we are
+ * operating, so it is not safe to simply use current_process()
+ * instead.
+ */
/*ARGSUSED*/
-#ifndef NeXT
-int
-ttcompat(tp, com, data, flag)
- register struct tty *tp;
- int com;
- caddr_t data;
- int flag;
-#else
__private_extern__ int
-ttcompat(tp, com, data, flag, p)
- register struct tty *tp;
- u_long com;
- caddr_t data;
- int flag;
- struct proc *p;
-#endif /* !NeXT */
+ttcompat(struct tty *tp, u_long com, caddr_t data, int flag, struct proc *p)
{
switch (com) {
case TIOCSETP:
case TIOCSLTC:
case TIOCLBIS:
case TIOCLBIC:
- case TIOCLSET: {
+ case TIOCLSET:
+ /*
+ * See ttsetcompat() for a full description of these command
+ * values and their meanings.
+ */
+ {
struct termios term;
int error;
term = tp->t_termios;
- if ((error = ttsetcompat(tp, &com, data, &term)) != 0)
+ if ((error = ttsetcompat(tp, &com, data, &term)) != 0) {
return error;
-#ifdef NeXT
- return ttioctl(tp, com, (caddr_t) &term, flag, p);
-#else
- return ttioctl(tp, com, &term, flag);
-#endif
+ }
+ return ttioctl_locked(tp, com, (caddr_t) &term, flag, p);
}
- case TIOCGETP: {
- register struct sgttyb *sg = (struct sgttyb *)data;
- register cc_t *cc = tp->t_cc;
+ case TIOCGETP:
+ /*
+ * Get the current input and output speeds, and device
+ * flags, into the structure pointed to by 'data'.
+ */
+ {
+ struct sgttyb *sg = (struct sgttyb *)data;
+ cc_t *cc = tp->t_cc;
sg->sg_ospeed = ttcompatspeedtab(tp->t_ospeed, compatspeeds);
- if (tp->t_ispeed == 0)
+ if (tp->t_ispeed == 0) {
sg->sg_ispeed = sg->sg_ospeed;
- else
+ } else {
sg->sg_ispeed = ttcompatspeedtab(tp->t_ispeed, compatspeeds);
+ }
sg->sg_erase = cc[VERASE];
sg->sg_kill = cc[VKILL];
sg->sg_flags = tp->t_flags = ttcompatgetflags(tp);
break;
}
- case TIOCGETC: {
+ case TIOCGETC:
+ /*
+ * Get the terminal control characters into the struct
+ * tchars that 'data' points to.
+ */
+ {
struct tchars *tc = (struct tchars *)data;
- register cc_t *cc = tp->t_cc;
+ cc_t *cc = tp->t_cc;
tc->t_intrc = cc[VINTR];
tc->t_quitc = cc[VQUIT];
tc->t_brkc = cc[VEOL];
break;
}
- case TIOCGLTC: {
+ case TIOCGLTC:
+ /*
+ * Get the terminal control characters into the struct
+ * ltchars that 'data' points to.
+ */
+ {
struct ltchars *ltc = (struct ltchars *)data;
- register cc_t *cc = tp->t_cc;
+ cc_t *cc = tp->t_cc;
ltc->t_suspc = cc[VSUSP];
ltc->t_dsuspc = cc[VDSUSP];
break;
}
case TIOCLGET:
+ /*
+ * Get the terminal state local flags word into the 16 bit
+ * value pointed to by 'data'.
+ */
tp->t_flags =
- (ttcompatgetflags(tp) & 0xffff0000UL)
- | (tp->t_flags & 0xffff);
- *(int *)data = tp->t_flags>>16;
-#ifndef NeXT
- if (ttydebug)
- printf("CLGET: returning %x\n", *(int *)data);
-#endif
+ (ttcompatgetflags(tp) & 0xffff0000UL)
+ | (tp->t_flags & 0xffff);
+ *(int *)data = tp->t_flags >> 16;
break;
case OTIOCGETD:
+ /*
+ * Get the current line discipline into the int pointed to
+ * by 'data'.
+ */
*(int *)data = tp->t_line ? tp->t_line : 2;
break;
-#ifndef NeXT
- case OTIOCSETD: {
+ case OTIOCSETD:
+ /*
+ * Set the current line discipline based on the value of the
+ * int pointed to by 'data'.
+ */
+ {
int ldisczero = 0;
- return (ttioctl(tp, TIOCSETD,
- *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag));
- }
-
- case OTIOCCONS:
- *(int *)data = 1;
- return (ttioctl(tp, TIOCCONS, data, flag));
-#else
- case OTIOCSETD: {
- int ldisczero = 0;
-
- return (ttioctl(tp, TIOCSETD,
- *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag, p));
- }
+ return ttioctl_locked(tp, TIOCSETD,
+ *(int *)data == 2 ? (caddr_t)&ldisczero : data, flag, p);
+ }
case OTIOCCONS:
+ /*
+ * Become the console device.
+ */
*(int *)data = 1;
- return (ttioctl(tp, TIOCCONS, data, flag, p));
+ return ttioctl_locked(tp, TIOCCONS, data, flag, p);
case TIOCGSID:
- if (tp->t_session == NULL)
+ /*
+ * Get the current session ID (controlling process' PID).
+ */
+ if (tp->t_session == NULL) {
return ENOTTY;
+ }
- if (tp->t_session->s_leader == NULL)
+ if (tp->t_session->s_leader == NULL) {
return ENOTTY;
+ }
*(int *) data = tp->t_session->s_leader->p_pid;
break;
-#endif /* NeXT */
default:
- return (-1);
+ /*
+ * This ioctl is not handled at this layer.
+ */
+ return ENOTTY;
}
- return (0);
+
+ /*
+ * Successful 'get' operation.
+ */
+ return 0;
}
+/*
+ * ttcompatgetflags
+ *
+ * Description: Get the terminal state local flags, device flags, and current
+ * speed code for the device (all 32 bits are returned).
+ *
+ * Parameters struct tty *tp The tty on which the operation is
+ * being performed.
+ *
+ * Returns: * Integer value corresponding to the
+ * current terminal state local flags
+ * word.
+ *
+ * Notes: Caller is responsible for breaking these bits back out into
+ * separate 16 bit filelds, if that's what was actually desired.
+ */
static int
-ttcompatgetflags(tp)
- register struct tty *tp;
+ttcompatgetflags(struct tty *tp)
{
- register tcflag_t iflag = tp->t_iflag;
- register tcflag_t lflag = tp->t_lflag;
- register tcflag_t oflag = tp->t_oflag;
- register tcflag_t cflag = tp->t_cflag;
- register flags = 0;
+ tcflag_t iflag = tp->t_iflag;
+ tcflag_t lflag = tp->t_lflag;
+ tcflag_t oflag = tp->t_oflag;
+ tcflag_t cflag = tp->t_cflag;
+ int flags = 0;
- if (iflag&IXOFF)
+ if (iflag & IXOFF) {
flags |= TANDEM;
- if (iflag&ICRNL || oflag&ONLCR)
+ }
+ if (iflag & ICRNL || oflag & ONLCR) {
flags |= CRMOD;
- if ((cflag&CSIZE) == CS8) {
+ }
+ if ((cflag & CSIZE) == CS8) {
flags |= PASS8;
- if (iflag&ISTRIP)
+ if (iflag & ISTRIP) {
flags |= ANYP;
- }
- else if (cflag&PARENB) {
- if (iflag&INPCK) {
- if (cflag&PARODD)
+ }
+ } else if (cflag & PARENB) {
+ if (iflag & INPCK) {
+ if (cflag & PARODD) {
flags |= ODDP;
- else
+ } else {
flags |= EVENP;
- } else
+ }
+ } else {
flags |= EVENP | ODDP;
+ }
}
- if ((lflag&ICANON) == 0) {
+ if ((lflag & ICANON) == 0) {
/* fudge */
- if (iflag&(INPCK|ISTRIP|IXON) || lflag&(IEXTEN|ISIG)
- || cflag&(CSIZE|PARENB) != CS8)
+ if (iflag & (INPCK | ISTRIP | IXON) || lflag & (IEXTEN | ISIG)
+ || (cflag & (CSIZE | PARENB)) != CS8) {
flags |= CBREAK;
- else
+ } else {
flags |= RAW;
+ }
}
- if (!(flags&RAW) && !(oflag&OPOST) && cflag&(CSIZE|PARENB) == CS8)
+ if (!(flags & RAW) && !(oflag & OPOST) && (cflag & (CSIZE | PARENB)) == CS8) {
flags |= LITOUT;
- if (cflag&MDMBUF)
+ }
+ if (cflag & MDMBUF) {
flags |= MDMBUF;
- if ((cflag&HUPCL) == 0)
+ }
+ if ((cflag & HUPCL) == 0) {
flags |= NOHANG;
- if (oflag&OXTABS)
+ }
+ if (oflag & OXTABS) {
flags |= XTABS;
- if (lflag&ECHOE)
- flags |= CRTERA|CRTBS;
- if (lflag&ECHOKE)
- flags |= CRTKIL|CRTBS;
- if (lflag&ECHOPRT)
+ }
+ if (lflag & ECHOE) {
+ flags |= CRTERA | CRTBS;
+ }
+ if (lflag & ECHOKE) {
+ flags |= CRTKIL | CRTBS;
+ }
+ if (lflag & ECHOPRT) {
flags |= PRTERA;
- if (lflag&ECHOCTL)
+ }
+ if (lflag & ECHOCTL) {
flags |= CTLECH;
- if ((iflag&IXANY) == 0)
+ }
+ if ((iflag & IXANY) == 0) {
flags |= DECCTQ;
- flags |= lflag&(ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH);
-#ifndef NeXT
- if (ttydebug)
- printf("getflags: %x\n", flags);
-#endif
- return (flags);
+ }
+ flags |= lflag & (ECHO | TOSTOP | FLUSHO | PENDIN | NOFLSH);
+ return flags;
}
+/*
+ * ttcompatsetflags
+ *
+ * Description: Given a set of compatability flags, convert the compatability
+ * flags in the terminal flags fields into canonical flags in the
+ * provided termios struct.
+ *
+ * Parameters: struct tty *tp The tty on which the operation is
+ * being performed.
+ * struct termios *t The termios structure into which to
+ * return the converted flags.
+ *
+ * Returns: void (implicit: *t, modified)
+ */
static void
-ttcompatsetflags(tp, t)
- register struct tty *tp;
- register struct termios *t;
+ttcompatsetflags(struct tty *tp, struct termios *t)
{
- register flags = tp->t_flags;
- register tcflag_t iflag = t->c_iflag;
- register tcflag_t oflag = t->c_oflag;
- register tcflag_t lflag = t->c_lflag;
- register tcflag_t cflag = t->c_cflag;
+ int flags = tp->t_flags;
+ tcflag_t iflag = t->c_iflag;
+ tcflag_t oflag = t->c_oflag;
+ tcflag_t lflag = t->c_lflag;
+ tcflag_t cflag = t->c_cflag;
if (flags & RAW) {
iflag = IGNBRK;
- lflag &= ~(ECHOCTL|ISIG|ICANON|IEXTEN);
+ lflag &= ~(ECHOCTL | ISIG | ICANON | IEXTEN);
} else {
- iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
- iflag |= BRKINT|IXON|IMAXBEL;
- lflag |= ISIG|IEXTEN|ECHOCTL; /* XXX was echoctl on ? */
- if (flags & XTABS)
+ iflag &= ~(PARMRK | IGNPAR | IGNCR | INLCR);
+ iflag |= BRKINT | IXON | IMAXBEL;
+ lflag |= ISIG | IEXTEN | ECHOCTL; /* XXX was echoctl on ? */
+ if (flags & XTABS) {
oflag |= OXTABS;
- else
+ } else {
oflag &= ~OXTABS;
- if (flags & CBREAK)
+ }
+ if (flags & CBREAK) {
lflag &= ~ICANON;
- else
+ } else {
lflag |= ICANON;
- if (flags&CRMOD) {
+ }
+ if (flags & CRMOD) {
iflag |= ICRNL;
oflag |= ONLCR;
} else {
oflag &= ~ONLCR;
}
}
- if (flags&ECHO)
+ if (flags & ECHO) {
lflag |= ECHO;
- else
+ } else {
lflag &= ~ECHO;
+ }
- cflag &= ~(CSIZE|PARENB);
- if (flags&(RAW|LITOUT|PASS8)) {
+ cflag &= ~(CSIZE | PARENB);
+ if (flags & (RAW | LITOUT | PASS8)) {
cflag |= CS8;
- if (!(flags&(RAW|PASS8))
- || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
+ if (!(flags & (RAW | PASS8))
+ || (flags & (RAW | PASS8 | ANYP)) == (PASS8 | ANYP)) {
iflag |= ISTRIP;
- else
+ } else {
iflag &= ~ISTRIP;
- if (flags&(RAW|LITOUT))
+ }
+ if (flags & (RAW | LITOUT)) {
oflag &= ~OPOST;
- else
+ } else {
oflag |= OPOST;
+ }
} else {
- cflag |= CS7|PARENB;
+ cflag |= CS7 | PARENB;
iflag |= ISTRIP;
oflag |= OPOST;
}
/* XXX don't set INPCK if RAW or PASS8? */
- if ((flags&(EVENP|ODDP)) == EVENP) {
+ if ((flags & (EVENP | ODDP)) == EVENP) {
iflag |= INPCK;
cflag &= ~PARODD;
- } else if ((flags&(EVENP|ODDP)) == ODDP) {
+ } else if ((flags & (EVENP | ODDP)) == ODDP) {
iflag |= INPCK;
cflag |= PARODD;
- } else
+ } else {
iflag &= ~INPCK;
- if (flags&TANDEM)
+ }
+ if (flags & TANDEM) {
iflag |= IXOFF;
- else
+ } else {
iflag &= ~IXOFF;
- if ((flags&DECCTQ) == 0)
+ }
+ if ((flags & DECCTQ) == 0) {
iflag |= IXANY;
- else
+ } else {
iflag &= ~IXANY;
+ }
t->c_iflag = iflag;
t->c_oflag = oflag;
t->c_lflag = lflag;
t->c_cflag = cflag;
}
+/*
+ * ttcompatsetlflags
+ *
+ * Description: Given a set of compatability terminal state local flags,
+ * convert the compatability flags in the terminal flags
+ * fields into canonical flags in the provided termios struct.
+ *
+ * Parameters: struct tty *tp The tty on which the operation is
+ * being performed.
+ * struct termios *t The termios structure into which to
+ * return the converted local flags.
+ *
+ * Returns: void (implicit: *t, modified)
+ */
static void
-ttcompatsetlflags(tp, t)
- register struct tty *tp;
- register struct termios *t;
+ttcompatsetlflags(struct tty *tp, struct termios *t)
{
- register flags = tp->t_flags;
- register tcflag_t iflag = t->c_iflag;
- register tcflag_t oflag = t->c_oflag;
- register tcflag_t lflag = t->c_lflag;
- register tcflag_t cflag = t->c_cflag;
-
- iflag &= ~(PARMRK|IGNPAR|IGNCR|INLCR);
- if (flags&CRTERA)
+ int flags = tp->t_flags;
+ tcflag_t iflag = t->c_iflag;
+ tcflag_t oflag = t->c_oflag;
+ tcflag_t lflag = t->c_lflag;
+ tcflag_t cflag = t->c_cflag;
+
+ iflag &= ~(PARMRK | IGNPAR | IGNCR | INLCR);
+ if (flags & CRTERA) {
lflag |= ECHOE;
- else
+ } else {
lflag &= ~ECHOE;
- if (flags&CRTKIL)
+ }
+ if (flags & CRTKIL) {
lflag |= ECHOKE;
- else
+ } else {
lflag &= ~ECHOKE;
- if (flags&PRTERA)
+ }
+ if (flags & PRTERA) {
lflag |= ECHOPRT;
- else
+ } else {
lflag &= ~ECHOPRT;
- if (flags&CTLECH)
+ }
+ if (flags & CTLECH) {
lflag |= ECHOCTL;
- else
+ } else {
lflag &= ~ECHOCTL;
- if (flags&TANDEM)
+ }
+ if (flags & TANDEM) {
iflag |= IXOFF;
- else
+ } else {
iflag &= ~IXOFF;
- if ((flags&DECCTQ) == 0)
+ }
+ if ((flags & DECCTQ) == 0) {
iflag |= IXANY;
- else
+ } else {
iflag &= ~IXANY;
- if (flags & MDMBUF)
+ }
+ if (flags & MDMBUF) {
cflag |= MDMBUF;
- else
+ } else {
cflag &= ~MDMBUF;
- if (flags&NOHANG)
+ }
+ if (flags & NOHANG) {
cflag &= ~HUPCL;
- else
+ } else {
cflag |= HUPCL;
- lflag &= ~(TOSTOP|FLUSHO|PENDIN|NOFLSH);
- lflag |= flags&(TOSTOP|FLUSHO|PENDIN|NOFLSH);
+ }
+ lflag &= ~(TOSTOP | FLUSHO | PENDIN | NOFLSH);
+ lflag |= flags & (TOSTOP | FLUSHO | PENDIN | NOFLSH);
/*
* The next if-else statement is copied from above so don't bother
* the change is not available here and skipping the RAW case would
* make the code different from above.
*/
- cflag &= ~(CSIZE|PARENB);
- if (flags&(RAW|LITOUT|PASS8)) {
+ cflag &= ~(CSIZE | PARENB);
+ if (flags & (RAW | LITOUT | PASS8)) {
cflag |= CS8;
- if (!(flags&(RAW|PASS8))
- || (flags&(RAW|PASS8|ANYP)) == (PASS8|ANYP))
+ if (!(flags & (RAW | PASS8))
+ || (flags & (RAW | PASS8 | ANYP)) == (PASS8 | ANYP)) {
iflag |= ISTRIP;
- else
+ } else {
iflag &= ~ISTRIP;
- if (flags&(RAW|LITOUT))
+ }
+ if (flags & (RAW | LITOUT)) {
oflag &= ~OPOST;
- else
+ } else {
oflag |= OPOST;
+ }
} else {
- cflag |= CS7|PARENB;
+ cflag |= CS7 | PARENB;
iflag |= ISTRIP;
oflag |= OPOST;
}
t->c_lflag = lflag;
t->c_cflag = cflag;
}
-#endif /* COMPAT_43 || COMPAT_SUNOS */
projects / apple / xnu.git / blobdiff