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/* Copyright (C) 2017 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
This program 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 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
/*!
* \file
*
* \brief A general purpose lookup table.
*
* \addtogroup libknot
* @{
*/
#pragma once
#include <string.h>
#include <strings.h>
/*!
* \brief A general purpose lookup table.
*/
typedef struct knot_lookup {
int id;
const char *name;
} knot_lookup_t;
/*!
* \brief Looks up the given name in the lookup table.
*
* \param table Lookup table.
* \param name Name to look up.
*
* \return Item in the lookup table with the given name or NULL if no such is
* present.
*/
inline static const knot_lookup_t *knot_lookup_by_name(const knot_lookup_t *table, const char *name)
{
if (table == NULL || name == NULL) {
return NULL;
}
while (table->name != NULL) {
if (strcasecmp(name, table->name) == 0) {
return table;
}
table++;
}
return NULL;
}
/*!
* \brief Looks up the given id in the lookup table.
*
* \param table Lookup table.
* \param id ID to look up.
*
* \return Item in the lookup table with the given id or NULL if no such is
* present.
*/
inline static const knot_lookup_t *knot_lookup_by_id(const knot_lookup_t *table, int id)
{
if (table == NULL) {
return NULL;
}
while (table->name != NULL) {
if (table->id == id) {
return table;
}
table++;
}
return NULL;
}
/*! @} */
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