1
0
forked from bip/bip
bip/src/bipmkpw.c
2008-12-29 14:04:51 +01:00

90 lines
1.8 KiB
C

/*
* $Id$
*
* This file is part of the bip project
* Copyright (C) 2004 2005 Arnaud Cornet and Loïc Gomez
*
* 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 2 of the License, or
* (at your option) any later version.
* See the file "COPYING" for the exact licensing terms.
*/
#include "config.h"
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <fcntl.h>
#include <errno.h>
#include "util.h"
#include "md5.h"
int conf_log_level;
FILE *conf_global_log_file;
int conf_log_system;
void readpass(char *buffer, int buflen)
{
int ttyfd = open("/dev/tty", O_RDWR);
if (ttyfd == -1) {
fprintf(stderr, "Unable to open tty: %s\n", strerror(errno));
exit(1);
}
struct termios tt, ttback;
memset(&ttback, 0, sizeof(ttback));
if (tcgetattr(ttyfd, &ttback) < 0) {
fprintf(stderr, "tcgetattr failed: %s\n", strerror(errno));
exit(1);
}
memcpy(&tt, &ttback, sizeof(ttback));
tt.c_lflag &= ~(ICANON|ECHO);
if (tcsetattr(ttyfd, TCSANOW, &tt) < 0) {
fprintf(stderr, "tcsetattr failed: %s\n", strerror(errno));
exit(1);
}
write(ttyfd, "Password: ", 10);
int idx = 0;
while (idx < buflen) {
read(ttyfd, buffer+idx, 1);
if (buffer[idx] == '\n') {
buffer[idx] = 0;
break;
}
idx++;
}
write(ttyfd, "\n", 1);
tcsetattr(ttyfd, TCSANOW, &ttback);
close(ttyfd);
}
int main(void)
{
int i;
static char str[256];
unsigned char *md5;
unsigned int seed;
readpass(str, 256);
str[255] = 0;
// the time used to type the pass is entropy
srand(time(NULL));
seed = rand();
md5 = chash_double(str, seed);
for (i = 0; i < 20; i++)
printf("%02x", md5[i]);
printf("\n");
free(md5);
return 0;
}