Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "zbxcommshigh.h"

​

#include "zbxcommon.h"

#include "zbxjson.h"

#include "log.h"

​

#if !defined(_WINDOWS) && !defined(__MINGW32)

#include "zbxnix.h"

#endif

​

#include "zbxalgo.h"

#include "cfg.h"

​

#if defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)

extern char *config_tls_server_cert_issuer;

extern char *config_tls_server_cert_subject;

extern char *config_tls_psk_identity;

#endif

​

static int  zbx_tcp_connect_failover(zbx_socket_t *s, const char *source_ip, zbx_vector_ptr_t *addrs,

        int timeout, int connect_timeout, unsigned int tls_connect, const char *tls_arg1, const char *tls_arg2,

        int loglevel)

{

    int i, ret = FAIL;

​

    for (i = 0; i < addrs->values_num; i++)

    {

        zbx_addr_t  *addr;

​

        addr = (zbx_addr_t *)addrs->values[0];

​

        if (FAIL != (ret = zbx_tcp_connect(s, source_ip, addr->ip, addr->port, connect_timeout, tls_connect,

                tls_arg1, tls_arg2)))

        {

            zbx_socket_timeout_set(s, timeout);

            break;

        }

​

        zabbix_log(loglevel, "Unable to connect to [%s]:%d [%s]",

                ((zbx_addr_t *)addrs->values[0])->ip, ((zbx_addr_t *)addrs->values[0])->port,

                zbx_socket_strerror());

​

        zbx_vector_ptr_remove(addrs, 0);

        zbx_vector_ptr_append(addrs, addr);