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/*
This file is part of TALER
Copyright (C) 2020 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 yna.c
* @brief Utility functions for yes/no/all filters
* @author Jonathan Buchanan
*/
#include "platform.h"
#include "taler_util.h"
/**
* Convert query argument to @a yna value.
*
* @param connection connection to take query argument from
* @param arg argument to try for
* @param default_val value to assign if the argument is not present
* @param[out] yna value to set
* @return true on success, false if the parameter was malformed
*/
bool
TALER_arg_to_yna (struct MHD_Connection *connection,
const char *arg,
enum TALER_EXCHANGE_YesNoAll default_val,
enum TALER_EXCHANGE_YesNoAll *yna)
{
const char *str;
str = MHD_lookup_connection_value (connection,
MHD_GET_ARGUMENT_KIND,
arg);
if (NULL == str)
{
*yna = default_val;
return true;
}
if (0 == strcasecmp (str, "yes"))
{
*yna = TALER_EXCHANGE_YNA_YES;
return true;
}
if (0 == strcasecmp (str, "no"))
{
*yna = TALER_EXCHANGE_YNA_NO;
return true;
}
if (0 == strcasecmp (str, "all"))
{
*yna = TALER_EXCHANGE_YNA_ALL;
return true;
}
return false;
}
/**
* Convert YNA value to a string.
*
* @param yna value to convert
* @return string representation ("yes"/"no"/"all").
*/
const char *
TALER_yna_to_string (enum TALER_EXCHANGE_YesNoAll yna)
{
switch (yna)
{
case TALER_EXCHANGE_YNA_YES:
return "yes";
case TALER_EXCHANGE_YNA_NO:
return "no";
case TALER_EXCHANGE_YNA_ALL:
return "all";
}
GNUNET_assert (0);
}
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