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.

**/

​

#ifndef ZABBIX_ZBXCOMMS_H

#define ZABBIX_ZBXCOMMS_H

​

#include "zbxalgo.h"

#include "zbxtime.h"

​

#define ZBX_IPV4_MAX_CIDR_PREFIX    32  /* max number of bits in IPv4 CIDR prefix */

#define ZBX_IPV6_MAX_CIDR_PREFIX    128 /* max number of bits in IPv6 CIDR prefix */

​

#ifdef _WINDOWS

#   define zbx_socket_last_error()      WSAGetLastError()

​

#   define ZBX_PROTO_ERROR          SOCKET_ERROR

#   define ZBX_SOCKET_TO_INT(s)     ((int)(s))

#else

#   define zbx_socket_last_error()      errno

​

#   define ZBX_PROTO_ERROR      -1

#   define ZBX_SOCKET_TO_INT(s) (s)

#endif

​

#ifdef _WINDOWS

#   if !defined(POLLIN)

#       define POLLIN   0x001

#   endif

#   if !defined(POLLPRI)

#       define POLLPRI  0x002

#   endif

#   if !defined(POLLOUT)

#       define POLLOUT  0x004

#   endif

#   if !defined(POLLERR)

#       define POLLERR  0x008

#   endif

#   if !defined(POLLHUP)

#       define POLLHUP  0x010

#   endif

#   if !defined(POLLNVAL)

#       define POLLNVAL 0x020

#   endif

#   if !defined(POLLRDNORM)

#       define POLLRDNORM   0x040

#   endif

#   if !defined(POLLWRNORM)

#       define POLLWRNORM   0x100

#   endif

​

typedef struct

{

    SOCKET  fd;

    short   events;

    short   revents;

}

zbx_pollfd_t;

​

int zbx_socket_poll(zbx_pollfd_t* fds, unsigned long fds_num, int timeout);

​

#else

#   define zbx_socket_poll(x, y, z)     poll(x, y, z)

​

typedef struct pollfd zbx_pollfd_t;

​

#endif

​

void    zbx_tcp_init_hints(struct addrinfo *hints, int socktype, int flags);

​

int zbx_socket_had_nonblocking_error(void);

​

#ifdef _WINDOWS

typedef SOCKET  ZBX_SOCKET;

#else

typedef int ZBX_SOCKET;