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 "zbxcomms.h"

#include "comms.h"

​

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

#include "tls.h"

#endif

#include "zbxlog.h"

#include "zbxcompress.h"

#include "zbxstr.h"

#include "zbxnum.h"

#include "zbxip.h"

#include "zbxtime.h"

#include "zbxcrypto.h"

​

#ifdef _WINDOWS

#   ifndef _WIN32_WINNT_WIN7

#       define _WIN32_WINNT_WIN7        0x0601  /* allow compilation on older Windows systems */

#   endif

#   ifndef WSA_FLAG_NO_HANDLE_INHERIT

#       define WSA_FLAG_NO_HANDLE_INHERIT   0x80    /* allow compilation on older Windows systems */

#   endif

#endif

​

#ifndef ZBX_SOCKLEN_T

#   define ZBX_SOCKLEN_T socklen_t

#endif

​

#ifndef SOCK_CLOEXEC

#   define SOCK_CLOEXEC 0   /* SOCK_CLOEXEC is Linux-specific, available since 2.6.23 */

#endif

​

#ifdef HAVE_OPENSSL

extern ZBX_THREAD_LOCAL char    info_buf[256];

#endif

​

extern int  CONFIG_TCP_MAX_BACKLOG_SIZE;

​

static int  socket_set_nonblocking(ZBX_SOCKET s);

static void tcp_set_socket_strerror_from_getaddrinfo(const char *ip);

static ssize_t  tcp_read(zbx_socket_t *s, char *buffer, size_t size, short *events);

​

zbx_config_tls_t    *zbx_config_tls_new(void)

{

    zbx_config_tls_t    *config_tls;