mirror of http://galexander.org/git/simplesshd.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
1.8 KiB
73 lines
1.8 KiB
/*
|
|
* An implementation of getpass for systems that lack one.
|
|
*
|
|
* Copyright (C) 2013 Roman Donchenko
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, visit the http://fsf.org website.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <termios.h>
|
|
|
|
#include "rsync.h"
|
|
|
|
char *getpass(const char *prompt)
|
|
{
|
|
static char password[256];
|
|
|
|
BOOL tty_changed = False, read_success;
|
|
struct termios tty_old, tty_new;
|
|
FILE *in = stdin, *out = stderr;
|
|
FILE *tty = fopen("/dev/tty", "w+");
|
|
|
|
if (tty)
|
|
in = out = tty;
|
|
|
|
if (tcgetattr(fileno(in), &tty_old) == 0) {
|
|
tty_new = tty_old;
|
|
tty_new.c_lflag &= ~(ECHO | ISIG);
|
|
|
|
if (tcsetattr(fileno(in), TCSAFLUSH, &tty_new) == 0)
|
|
tty_changed = True;
|
|
}
|
|
|
|
if (!tty_changed)
|
|
fputs("(WARNING: will be visible) ", out);
|
|
fputs(prompt, out);
|
|
fflush(out);
|
|
|
|
read_success = fgets(password, sizeof password, in) != NULL;
|
|
|
|
/* Print the newline that hasn't been echoed. */
|
|
fputc('\n', out);
|
|
|
|
if (tty_changed)
|
|
tcsetattr(fileno(in), TCSAFLUSH, &tty_old);
|
|
|
|
if (tty)
|
|
fclose(tty);
|
|
|
|
if (read_success) {
|
|
/* Remove the trailing newline. */
|
|
size_t password_len = strlen(password);
|
|
if (password_len && password[password_len - 1] == '\n')
|
|
password[password_len - 1] = '\0';
|
|
|
|
return password;
|
|
}
|
|
|
|
return NULL;
|
|
}
|