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// Copyright (c) 2018-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <compat/stdin.h>
#include <cstdio>
#ifdef WIN32
#include <windows.h>
#include <io.h>
#else
#include <termios.h>
#include <unistd.h>
#include <poll.h>
#endif
// https://stackoverflow.com/questions/1413445/reading-a-password-from-stdcin
void SetStdinEcho(bool enable)
{
#ifdef WIN32
HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
DWORD mode;
GetConsoleMode(hStdin, &mode);
if (!enable) {
mode &= ~ENABLE_ECHO_INPUT;
} else {
mode |= ENABLE_ECHO_INPUT;
}
SetConsoleMode(hStdin, mode);
#else
struct termios tty;
tcgetattr(STDIN_FILENO, &tty);
if (!enable) {
tty.c_lflag &= ~ECHO;
} else {
tty.c_lflag |= ECHO;
}
(void)tcsetattr(STDIN_FILENO, TCSANOW, &tty);
#endif
}
bool StdinTerminal()
{
#ifdef WIN32
return _isatty(_fileno(stdin));
#else
return isatty(fileno(stdin));
#endif
}
bool StdinReady()
{
if (!StdinTerminal()) {
return true;
}
#ifdef WIN32
return false;
#else
struct pollfd fds;
fds.fd = STDIN_FILENO;
fds.events = POLLIN;
return poll(&fds, 1, 0) == 1;
#endif
}
NoechoInst::NoechoInst() { SetStdinEcho(false); }
NoechoInst::~NoechoInst() { SetStdinEcho(true); }
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