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/*
This file is part of GNU Anastasis.
Copyright (C) 2021 Anastasis SARL
Anastasis 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, or (at your
option) any later version.
Anastasis 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 Anastasis; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file anastasis/src/util/pin.c
* @brief pin conversion functions
* @author Christian Grothoff
*/
#include "platform.h"
#include "anastasis_util_lib.h"
bool
ANASTASIS_scan_pin (const char *as,
unsigned long long *pin)
{
char dummy;
char s[16];
if ( (NULL != as) &&
(0 == strncasecmp ("A-", as, 2)) )
as += 2; /* skip "A-" prefix if present */
if (strlen (as) != 18)
return false;
if ( ('-' != as[5]) ||
('-' != as[9]) ||
('-' != as[14]) )
return false;
GNUNET_snprintf (s,
sizeof (s),
"%.5s%.3s%.4s%.3s",
as,
&as[6],
&as[10],
&as[15]);
if (1 != sscanf (s,
"%llu%c",
pin,
&dummy))
{
GNUNET_break (0);
return false;
}
return true;
}
const char *
ANASTASIS_pin2s (uint64_t pin)
{
static char buf[22];
char tmp[16];
GNUNET_assert (pin < ANASTASIS_PIN_MAX_VALUE);
GNUNET_snprintf (tmp,
sizeof (tmp),
"%015llu",
(unsigned long long) pin);
GNUNET_snprintf (buf,
sizeof (buf),
"A-%.5s-%.3s-%.4s-%.3s",
tmp,
&tmp[5],
&tmp[8],
&tmp[12]);
return buf;
}
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