ClickHouse/base/common/setTerminalEcho.cpp
2021-03-30 00:39:38 +03:00

29 lines
716 B
C++

#include <common/setTerminalEcho.h>
#include <common/errnoToString.h>
#include <stdexcept>
#include <cstring>
#include <string>
#include <termios.h>
#include <unistd.h>
void setTerminalEcho(bool enable)
{
/// Obtain terminal attributes,
/// toggle the ECHO flag
/// and set them back.
struct termios tty{};
if (0 != tcgetattr(STDIN_FILENO, &tty))
throw std::runtime_error(std::string("setTerminalEcho failed get: ") + errnoToString(errno));
if (enable)
tty.c_lflag |= ECHO;
else
tty.c_lflag &= ~ECHO;
if (0 != tcsetattr(STDIN_FILENO, TCSANOW, &tty))
throw std::runtime_error(std::string("setTerminalEcho failed set: ") + errnoToString(errno));
}