/*
 * Secure X Message Passing Library tools.
 *
 * (c) Alexander Vdolainen 2016 <avdolainen@zoho.com>
 *
 * libsxmp is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * libsxmp 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, see <http://www.gnu.org/licenses/>.";
 *
 * support functions for sxmp tools
 */

#include <stdio.h>
#include <dirent.h>
#define __USE_GNU
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#include <unistd.h>
#include <execinfo.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#include <termios.h>

#include <sxt/errno.h>
#include <sxt/safebuf.h>
#include <ndbuf/ndbuf.h>
#include <sxt/sxtkey.h>
#include <sxt/socket.h>
#include <sxt/sxt.h>

int passkey_promt(char *passbuf, size_t p_len, int cnf, void *priv)
{
  char *promt = (char *)priv;
  int sym, len = 0;
  struct termios tio;

  /* print promt */
  fprintf(stdout, "%s", promt);
  fflush(stdout);

  tcgetattr(STDIN_FILENO, &tio);
  /* disable echo */
  tio.c_lflag &= ~(ICANON | ECHO);
  tcsetattr(STDIN_FILENO, TCSANOW, &tio);

  while((sym = fgetc(stdin)) != '\n') {
    passbuf[len] = sym;
    if(len + 1 == p_len) break;
    else len++;
  }

  /* enable again */
  tio.c_lflag |= (ICANON | ECHO);
  tcsetattr(STDIN_FILENO, TCSANOW, &tio);
  fprintf(stdout, "\n");

  return SXT_SUCCESS;
}