iodine/src/login.c

60 lines
1.4 KiB
C
Raw Normal View History

2006-11-18 18:08:47 +02:00
/*
2014-06-01 09:46:42 +03:00
* Copyright (c) 2006-2014 Erik Ekman <yarrick@kryo.se>,
* 2006-2009 Bjorn Andersson <flex@kryo.se>
2006-12-16 03:07:29 +02:00
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
2006-11-18 18:08:47 +02:00
*/
#include <string.h>
2007-01-28 06:13:14 +02:00
#include <sys/types.h>
2006-11-18 18:08:47 +02:00
#ifdef WINDOWS32
#include "windows.h"
#else
2012-02-11 00:26:27 +02:00
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
2006-12-16 03:07:29 +02:00
#include "md5.h"
2006-11-18 18:08:47 +02:00
2007-02-10 23:44:03 +02:00
/*
* Needs a 16byte array for output, and 32 bytes password
*/
void
login_calculate(char *buf, int buflen, const char *pass, int seed)
2007-02-10 23:44:03 +02:00
{
2007-01-28 14:54:16 +02:00
unsigned char temp[32];
2006-11-18 18:08:47 +02:00
md5_state_t ctx;
2007-02-10 23:44:03 +02:00
int *ix;
2006-11-18 18:08:47 +02:00
int i;
2007-01-28 06:10:37 +02:00
int k;
2006-11-18 18:08:47 +02:00
2007-02-10 23:44:03 +02:00
if (buflen < 16)
2006-11-18 18:08:47 +02:00
return;
memcpy(temp, pass, 32);
2007-01-28 06:10:37 +02:00
ix = (int*) temp;
2007-02-10 23:44:03 +02:00
2006-11-18 18:08:47 +02:00
for (i = 0; i < 8; i++) {
2007-01-28 06:10:37 +02:00
k = ntohl(*ix);
k ^= seed;
*ix++ = htonl(k);
2006-11-18 18:08:47 +02:00
}
2007-02-10 23:44:03 +02:00
2006-11-18 18:08:47 +02:00
md5_init(&ctx);
md5_append(&ctx, temp, 32);
2007-02-10 23:44:03 +02:00
md5_finish(&ctx, (unsigned char *) buf);
2007-06-09 19:18:59 +03:00
2006-11-18 18:08:47 +02:00
}