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/*
** Zabbix
** Copyright (C) 2001-2019 Zabbix SIA
**
** 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 2 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, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "alias.h"
#include "sysinfo.h"
#include "log.h"
static ALIAS *aliasList = NULL;
void test_aliases(void)
{
ALIAS *alias;
for (alias = aliasList; NULL != alias; alias = alias->next)
test_parameter(alias->name);
}
void add_alias(const char *name, const char *value)
{
ALIAS *alias = NULL;
for (alias = aliasList; ; alias = alias->next)
{
/* add new Alias */
if (NULL == alias)
{
alias = (ALIAS *)zbx_malloc(alias, sizeof(ALIAS));
alias->name = strdup(name);
alias->value = strdup(value);
alias->next = aliasList;
aliasList = alias;
zabbix_log(LOG_LEVEL_DEBUG, "Alias added: \"%s\" -> \"%s\"", name, value);
break;
}
/* treat duplicate Alias as error */
if (0 == strcmp(alias->name, name))
{
zabbix_log(LOG_LEVEL_CRIT, "failed to add Alias \"%s\": duplicate name", name);
exit(EXIT_FAILURE);
}
}
}
void alias_list_free(void)
{
ALIAS *curr, *next;
next = aliasList;
while (NULL != next)
{
curr = next;
next = curr->next;
zbx_free(curr->value);
zbx_free(curr->name);
zbx_free(curr);
}
aliasList = NULL;
}
const char *zbx_alias_get(const char *orig)
{
ALIAS *alias;
size_t len_name, len_value;
static ZBX_THREAD_LOCAL char *buffer = NULL;
static ZBX_THREAD_LOCAL size_t buffer_alloc = 0;
size_t buffer_offset = 0;
const char *p = orig;
if (SUCCEED != parse_key(&p) || '\0' != *p)
return orig;
for (alias = aliasList; NULL != alias; alias = alias->next)
{
if (0 == strcmp(alias->name, orig))
return alias->value;
}
for (alias = aliasList; NULL != alias; alias = alias->next)
{
len_name = strlen(alias->name);
if (3 >= len_name || 0 != strcmp(alias->name + len_name - 3, "[*]"))
continue;
if (0 != strncmp(alias->name, orig, len_name - 2))
continue;
len_value = strlen(alias->value);
if (3 >= len_value || 0 != strcmp(alias->value + len_value - 3, "[*]"))
return alias->value;
zbx_strncpy_alloc(&buffer, &buffer_alloc, &buffer_offset, alias->value, len_value - 3);
zbx_strcpy_alloc(&buffer, &buffer_alloc, &buffer_offset, orig + len_name - 3);
return buffer;
}
return orig;
}
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