radare2/libr/socket/serial.c
2018-02-20 23:19:35 +01:00

66 lines
1.7 KiB
C

/* radare - LGPL - Copyright 2017 - pancake */
#include <r_socket.h>
#if __UNIX__ && !defined(__MINGW32__)
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <termios.h>
static int set_interface_attribs (int fd, int speed, int parity) {
struct termios tty;
memset (&tty, 0, sizeof tty);
if (tcgetattr (fd, &tty) != 0) {
return -1;
}
cfsetospeed (&tty, speed);
cfsetispeed (&tty, speed);
tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8; // 8-bit chars
// disable IGNBRK for mismatched speed tests; otherwise receive break
// as \000 chars
tty.c_iflag &= ~IGNBRK; // disable break processing
tty.c_lflag = 0; // no signaling chars, no echo,
// no canonical processing
tty.c_oflag = 0; // no remapping, no delays
tty.c_cc[VMIN] = 0; // read doesn't block
tty.c_cc[VTIME] = 5; // 0.5 seconds read timeout
tty.c_iflag &= ~(IXON | IXOFF | IXANY); // shut off xon/xoff ctrl
tty.c_cflag |= (CLOCAL | CREAD);// ignore modem controls,
// enable reading
tty.c_cflag &= ~(PARENB | PARODD); // shut off parity
tty.c_cflag |= parity;
tty.c_cflag &= ~CSTOPB;
#ifdef CRTSCTS
tty.c_cflag &= ~CRTSCTS;
#endif
if (tcsetattr (fd, TCSANOW, &tty) != 0) {
return -1;
}
return 0;
}
R_API int r_socket_connect_serial(RSocket *sock, const char *path, int speed, int parity) {
int fd = open (path, O_RDWR | O_SYNC | O_BINARY, 0); // O_NOCTY
if (fd == -1) {
return -1;
}
if (speed < 1) {
speed = 9600; // 19200
}
(void)set_interface_attribs (fd, speed, parity);
sock->fd = fd;
return fd;
}
#else // __UNIX__
R_API int r_socket_connect_serial(RSocket *sock, const char *path, int speed, int parity) {
return -1;
}
#endif