88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
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/*
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This file is part of TALER
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Copyright (C) 2014-2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file getopt.c
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* @brief Helper functions for parsing Taler-specific command-line arguments
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* @author Florian Dold
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*/
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#include "platform.h"
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#include "taler_util.h"
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/**
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* Set an option with an amount from the command line. A pointer to
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* this function should be passed as part of the 'struct
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* GNUNET_GETOPT_CommandLineOption' array to initialize options of
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* this type.
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*
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* @param ctx command line processing context
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* @param scls additional closure (will point to the `struct TALER_Amount`)
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* @param option name of the option
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* @param value actual value of the option as a string.
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* @return #GNUNET_OK if parsing the value worked
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*/
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static int
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set_amount (struct GNUNET_GETOPT_CommandLineProcessorContext *ctx,
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void *scls,
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const char *option,
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const char *value)
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{
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struct TALER_Amount *amount = scls;
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(void) ctx;
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if (GNUNET_OK !=
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TALER_string_to_amount (value,
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amount))
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{
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fprintf (stderr,
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_ ("Failed to parse amount in option `%s'\n"),
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option);
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return GNUNET_SYSERR;
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}
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return GNUNET_OK;
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}
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/**
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* Allow user to specify an amount on the command line.
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*
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* @param shortName short name of the option
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* @param name long name of the option
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* @param argumentHelp help text for the option argument
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* @param description long help text for the option
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* @param[out] amount set to the amount specified at the command line
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*/
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struct GNUNET_GETOPT_CommandLineOption
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TALER_getopt_get_amount (char shortName,
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const char *name,
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const char *argumentHelp,
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const char *description,
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struct TALER_Amount *amount)
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{
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struct GNUNET_GETOPT_CommandLineOption clo = {
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.shortName = shortName,
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.name = name,
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.argumentHelp = argumentHelp,
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.description = description,
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.require_argument = 1,
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.processor = &set_amount,
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.scls = (void *) amount
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};
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return clo;
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}
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