jehanne/sys/src/cmd/auth/lib/keyfmt.c

46 lines
1.3 KiB
C

/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
* See /doc/license/gpl-2.0.txt for details about the licensing.
*/
/* Portions of this file are Copyright (C) 9front's team.
* See /doc/license/9front-mit for details about the licensing.
* See http://git.9front.org/plan9front/plan9front/HEAD/info.html for a list of authors.
*/
#include <u.h>
#include <lib9.h>
#include <bio.h>
#include <authsrv.h>
#include "authcmdlib.h"
/*
* print a key in des standard form
*/
int
deskeyfmt(Fmt *f)
{
uint8_t key[8];
char buf[32];
uint8_t *k;
int i;
k = va_arg(f->args, uint8_t*);
key[0] = 0;
for(i = 0; i < 7; i++){
key[i] |= k[i] >> i;
key[i] &= ~1;
key[i+1] = k[i] << (7 - i);
}
key[7] &= ~1;
sprint(buf, "%.3uo %.3uo %.3uo %.3uo %.3uo %.3uo %.3uo %.3uo",
key[0], key[1], key[2], key[3], key[4], key[5], key[6], key[7]);
fmtstrcpy(f, buf);
return 0;
}