/*
 * Copyright 2006, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Axel Dörfler, axeld@pinc-software.de
 */


#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>


char *
getpass(const char *prompt)
{
        static char password[128];
        struct termios termios;
        bool changed = false;

        // Turn off echo

        if (tcgetattr(fileno(stdin), &termios) == 0) {
                struct termios noEchoTermios = termios;

                noEchoTermios.c_lflag &= ~(ECHO | ISIG);
                changed = tcsetattr(fileno(stdin), TCSAFLUSH, &noEchoTermios) == 0;
    }

        // Show prompt
        fputs(prompt, stdout);
        fflush(stdout);

        // Read password
        if (fgets(password, sizeof(password), stdin) != NULL) {
                size_t length = strlen(password);

                if (length > 0 && (password[length - 1] == '\n'))
                        password[length - 1] = '\0';

                if (changed) {
                        // Manually move to the next line
                        putchar('\n');
                }
        }

        // Restore termios setting
        if (changed)
                tcsetattr(fileno(stdin), TCSAFLUSH, &termios);

        return password;
}