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/*
This file is part of TALER
(C) 2018 Taler Systems SA
TALER 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.
TALER 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
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file wire/wire_helper.c
* @brief Helper functions for dealing with wire formats
* @author Christian Grothoff <christian@grothoff.org>
*/
#include "platform.h"
#include "taler_util.h"
#include "taler_wire_lib.h"
/**
* Prefix of PAYTO URLs.
*/
#define PAYTO "payto://"
/**
* Obtain the payment method from a @a payto_url
*
* @param payto_url the URL to parse
* @return NULL on error (malformed @a payto_url)
*/
char *
TALER_WIRE_payto_get_method (const char *payto_url)
{
const char *start;
const char *end;
if (0 != strncmp (payto_url,
PAYTO,
strlen (PAYTO)))
return NULL;
start = &payto_url[strlen(PAYTO)];
end = strchr (start,
(unsigned char) '/');
if (NULL == end)
return NULL;
return GNUNET_strndup (start,
end - start);
}
/* end of wire_helper.c */
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