40360b379c
<signal.h> shouldn't get you the contents of <errno.h>, and <fcntl.h> shouldn't get you the contents of <unistd.h>. Change-Id: I347499cd8671bfee98e6b8e875a97cab3a3655d3
118 lines
3.3 KiB
C++
118 lines
3.3 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <errno.h>
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#include <termios.h>
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#include <unistd.h>
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static speed_t cfgetspeed(const termios* s) {
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return (s->c_cflag & CBAUD);
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}
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speed_t cfgetispeed(const termios* s) {
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return cfgetspeed(s);
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}
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speed_t cfgetospeed(const termios* s) {
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return cfgetspeed(s);
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}
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void cfmakeraw(termios* s) {
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s->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
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s->c_oflag &= ~OPOST;
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s->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
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s->c_cflag &= ~(CSIZE|PARENB);
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s->c_cflag |= CS8;
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}
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int cfsetispeed(termios* s, speed_t speed) {
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return cfsetspeed(s, speed);
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}
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int cfsetospeed(termios* s, speed_t speed) {
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return cfsetspeed(s, speed);
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}
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int cfsetspeed(termios* s, speed_t speed) {
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// TODO: check 'speed' is valid.
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s->c_cflag = (s->c_cflag & ~CBAUD) | (speed & CBAUD);
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return 0;
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}
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int tcdrain(int fd) {
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// A non-zero argument to TCSBRK means "don't send a break".
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// The drain is a side-effect of the ioctl!
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return ioctl(fd, TCSBRK, static_cast<unsigned long>(1));
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}
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int tcflow(int fd, int action) {
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return ioctl(fd, TCXONC, static_cast<unsigned long>(action));
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}
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int tcflush(int fd, int queue) {
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return ioctl(fd, TCFLSH, static_cast<unsigned long>(queue));
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}
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int tcgetattr(int fd, termios* s) {
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return ioctl(fd, TCGETS, s);
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}
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pid_t tcgetsid(int fd) {
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pid_t sid;
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if (ioctl(fd, TIOCGSID, &sid) == -1) {
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return -1;
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}
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return sid;
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}
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int tcsendbreak(int fd, int duration) {
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return ioctl(fd, TCSBRKP, static_cast<unsigned long>(duration));
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}
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int tcsetattr(int fd, int optional_actions, const termios* s) {
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int cmd;
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switch (optional_actions) {
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case TCSANOW: cmd = TCSETS; break;
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case TCSADRAIN: cmd = TCSETSW; break;
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case TCSAFLUSH: cmd = TCSETSF; break;
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default: errno = EINVAL; return -1;
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}
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return ioctl(fd, cmd, s);
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}
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pid_t tcgetpgrp(int fd) {
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pid_t pid;
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if (ioctl(fd, TIOCGPGRP, &pid) == -1) {
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return -1;
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}
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return pid;
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}
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int tcsetpgrp(int fd, pid_t pid) {
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return ioctl(fd, TIOCSPGRP, &pid);
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}
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