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suricata/src/util-enum.c

85 lines
2.5 KiB
C

/* Copyright (C) 2007-2010 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* 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
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Anoop Saldanha <anoopsaldanha@gmail.com>
*/
#include "suricata-common.h"
#include "util-enum.h"
#include "util-debug.h"
/**
* \brief Maps a string name to an enum value from the supplied table. Please
* specify the last element of any map table with a {NULL, -1}. If
* missing, you will be welcomed with a segfault :)
*
* \param enum_name Character string that has to be mapped to an enum value
* from the table
* \param table Enum-Char table, from which the mapping is retrieved
*
* \retval result The enum_value for the enum_name string or -1 on failure
*/
int SCMapEnumNameToValue(const char *enum_name, SCEnumCharMap *table)
{
int result = -1;
if (enum_name == NULL || table == NULL) {
SCLogDebug("Invalid argument(s) passed into SCMapEnumNameToValue");
return -1;
}
for (; table->enum_name != NULL; table++) {
if (strcasecmp(table->enum_name, enum_name) == 0) {
result = table->enum_value;
break;
}
}
return result;
}
/**
* \brief Maps an enum value to a string name, from the supplied table
*
* \param enum_value Enum_value that has to be mapped to a string_value
* from the table
* \param table Enum-Char table, from which the mapping is retrieved
*
* \retval result The enum_name for the enum_value supplied or NULL on failure
*/
const char * SCMapEnumValueToName(int enum_value, SCEnumCharMap *table)
{
if (table == NULL) {
SCLogDebug("Invalid argument(s) passed into SCMapEnumValueToName");
return NULL;
}
for (; table->enum_name != NULL; table++) {
if (table->enum_value == enum_value) {
return table->enum_name;
}
}
SCLogDebug("A enum by the value %d doesn't exist in this table", enum_value);
return NULL;
}