gen/termios-fbsd.c

   1 /*-
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #if defined(LIBC_SCCS) && !defined(lint)
  35 static char sccsid[] = "@(#)termios.c   8.2 (Berkeley) 2/21/94";
  36 #endif /* LIBC_SCCS and not lint */
  37 #include <sys/cdefs.h>
  38 __FBSDID("$FreeBSD: src/lib/libc/gen/termios.c,v 1.13 2002/05/28 16:59:39 alfred Exp $");
  39
  40 #if __DARWIN_UNIX03
  41 #ifdef VARIANT_CANCELABLE
  42 #include <pthread.h>
  43
  44 extern void _pthread_testcancel(pthread_t thread, int isconforming);
  45 #endif /* VARIANT_CANCELABLE */
  46 #endif /* __DARWIN_UNIX03 */
  47
  48 #include "namespace.h"
  49 #include <sys/types.h>
  50 #include <sys/fcntl.h>
  51 #include <sys/ioctl.h>
  52 #include <sys/time.h>
  53
  54 #include <errno.h>
  55 #include <termios.h>
  56 #include <unistd.h>
  57 #include "un-namespace.h"
  58
  59 #ifndef BUILDING_VARIANT
  60 int
  61 tcgetattr(fd, t)
  62         int fd;
  63         struct termios *t;
  64 {
  65
  66         return (_ioctl(fd, TIOCGETA, t));
  67 }
  68
  69 int
  70 tcsetattr(fd, opt, t)
  71         int fd, opt;
  72         const struct termios *t;
  73 {
  74         struct termios localterm;
  75
  76         if (opt & TCSASOFT) {
  77                 localterm = *t;
  78                 localterm.c_cflag |= CIGNORE;
  79                 t = &localterm;
  80         }
  81         switch (opt & ~TCSASOFT) {
  82         case TCSANOW:
  83                 return (_ioctl(fd, TIOCSETA, t));
  84         case TCSADRAIN:
  85                 return (_ioctl(fd, TIOCSETAW, t));
  86         case TCSAFLUSH:
  87                 return (_ioctl(fd, TIOCSETAF, t));
  88         default:
  89                 errno = EINVAL;
  90                 return (-1);
  91         }
  92 }
  93
  94 int
  95 tcsetpgrp(int fd, pid_t pgrp)
  96 {
  97         int s;
  98
  99         if (isatty(fd) == 0)
 100                 return (-1);
 101
 102         s = pgrp;
 103         return (_ioctl(fd, TIOCSPGRP, &s));
 104 }
 105
 106 pid_t
 107 tcgetpgrp(fd)
 108         int fd;
 109 {
 110         int s;
 111
 112         if (isatty(fd) == 0)
 113                 return ((pid_t)-1);
 114
 115         if (_ioctl(fd, TIOCGPGRP, &s) < 0)
 116                 return ((pid_t)-1);
 117
 118         return ((pid_t)s);
 119 }
 120
 121 speed_t
 122 cfgetospeed(t)
 123         const struct termios *t;
 124 {
 125
 126         return (t->c_ospeed);
 127 }
 128
 129 speed_t
 130 cfgetispeed(t)
 131         const struct termios *t;
 132 {
 133
 134         return (t->c_ispeed);
 135 }
 136
 137 int
 138 cfsetospeed(t, speed)
 139         struct termios *t;
 140         speed_t speed;
 141 {
 142
 143         t->c_ospeed = speed;
 144         return (0);
 145 }
 146
 147 int
 148 cfsetispeed(t, speed)
 149         struct termios *t;
 150         speed_t speed;
 151 {
 152
 153         t->c_ispeed = speed;
 154         return (0);
 155 }
 156
 157 int
 158 cfsetspeed(t, speed)
 159         struct termios *t;
 160         speed_t speed;
 161 {
 162
 163         t->c_ispeed = t->c_ospeed = speed;
 164         return (0);
 165 }
 166
 167 /*
 168  * Make a pre-existing termios structure into "raw" mode: character-at-a-time
 169  * mode with no characters interpreted, 8-bit data path.
 170  */
 171 void
 172 cfmakeraw(t)
 173         struct termios *t;
 174 {
 175
 176         t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
 177         t->c_iflag |= IGNBRK;
 178         t->c_oflag &= ~OPOST;
 179         t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
 180         t->c_cflag &= ~(CSIZE|PARENB);
 181         t->c_cflag |= CS8|CREAD;
 182         t->c_cc[VMIN] = 1;
 183         t->c_cc[VTIME] = 0;
 184 }
 185
 186 int
 187 tcsendbreak(fd, len)
 188         int fd, len;
 189 {
 190         struct timeval sleepytime;
 191
 192         sleepytime.tv_sec = 0;
 193         sleepytime.tv_usec = 400000;
 194         if (_ioctl(fd, TIOCSBRK, 0) == -1)
 195                 return (-1);
 196         (void)_select(0, 0, 0, 0, &sleepytime);
 197         if (_ioctl(fd, TIOCCBRK, 0) == -1)
 198                 return (-1);
 199         return (0);
 200 }
 201 #endif /* BUILDING_VARIANT */
 202
 203 int
 204 __tcdrain(fd)
 205         int fd;
 206 {
 207 #if __DARWIN_UNIX03
 208 #ifdef VARIANT_CANCELABLE
 209         _pthread_testcancel(pthread_self(), 1);
 210 #endif /* VARIANT_CANCELABLE */
 211 #endif /* __DARWIN_UNIX03 */
 212         return (_ioctl(fd, TIOCDRAIN, 0));
 213 }
 214
 215 __weak_reference(__tcdrain, tcdrain);
 216 __weak_reference(__tcdrain, _tcdrain);
 217
 218 #ifndef BUILDING_VARIANT
 219 int
 220 tcflush(fd, which)
 221         int fd, which;
 222 {
 223         int com;
 224
 225         switch (which) {
 226         case TCIFLUSH:
 227                 com = FREAD;
 228                 break;
 229         case TCOFLUSH:
 230                 com = FWRITE;
 231                 break;
 232         case TCIOFLUSH:
 233                 com = FREAD | FWRITE;
 234                 break;
 235         default:
 236                 errno = EINVAL;
 237                 return (-1);
 238         }
 239         return (_ioctl(fd, TIOCFLUSH, &com));
 240 }
 241
 242 int
 243 tcflow(fd, action)
 244         int fd, action;
 245 {
 246         struct termios term;
 247         u_char c;
 248
 249         switch (action) {
 250         case TCOOFF:
 251                 return (_ioctl(fd, TIOCSTOP, 0));
 252         case TCOON:
 253                 return (_ioctl(fd, TIOCSTART, 0));
 254         case TCION:
 255                 return (_ioctl(fd, TIOCIXON, 0));
 256         case TCIOFF:
 257                 return (_ioctl(fd, TIOCIXOFF, 0));
 258         default:
 259                 errno = EINVAL;
 260                 return (-1);
 261         }
 262         /* NOTREACHED */
 263 }
 264 #endif /* BUILDING_VARIANT */