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da31917f4f
Relicense permission collected from all relevant authors as tallied at: https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md The relicense grants are collected under RELICENSE/ and will be moved to the above repository in a later commit. Fixes https://github.com/zeromq/libzmq/issues/2376
95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
/* SPDX-License-Identifier: MPL-2.0 */
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#ifndef __ZMQ_IP_RESOLVER_HPP_INCLUDED__
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#define __ZMQ_IP_RESOLVER_HPP_INCLUDED__
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#if !defined ZMQ_HAVE_WINDOWS
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#endif
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#include "address.hpp"
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namespace zmq
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{
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union ip_addr_t
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{
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sockaddr generic;
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sockaddr_in ipv4;
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sockaddr_in6 ipv6;
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int family () const;
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bool is_multicast () const;
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uint16_t port () const;
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const struct sockaddr *as_sockaddr () const;
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zmq_socklen_t sockaddr_len () const;
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void set_port (uint16_t);
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static ip_addr_t any (int family_);
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};
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class ip_resolver_options_t
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{
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public:
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ip_resolver_options_t ();
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ip_resolver_options_t &bindable (bool bindable_);
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ip_resolver_options_t &allow_nic_name (bool allow_);
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ip_resolver_options_t &ipv6 (bool ipv6_);
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ip_resolver_options_t &expect_port (bool expect_);
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ip_resolver_options_t &allow_dns (bool allow_);
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ip_resolver_options_t &allow_path (bool allow_);
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bool bindable ();
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bool allow_nic_name ();
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bool ipv6 ();
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bool expect_port ();
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bool allow_dns ();
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bool allow_path ();
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private:
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bool _bindable_wanted;
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bool _nic_name_allowed;
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bool _ipv6_wanted;
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bool _port_expected;
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bool _dns_allowed;
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bool _path_allowed;
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};
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class ip_resolver_t
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{
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public:
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ip_resolver_t (ip_resolver_options_t opts_);
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virtual ~ip_resolver_t (){};
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int resolve (ip_addr_t *ip_addr_, const char *name_);
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protected:
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// Virtual functions that are overridden in tests
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virtual int do_getaddrinfo (const char *node_,
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const char *service_,
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const struct addrinfo *hints_,
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struct addrinfo **res_);
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virtual void do_freeaddrinfo (struct addrinfo *res_);
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virtual unsigned int do_if_nametoindex (const char *ifname_);
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private:
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ip_resolver_options_t _options;
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int resolve_nic_name (ip_addr_t *ip_addr_, const char *nic_);
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int resolve_getaddrinfo (ip_addr_t *ip_addr_, const char *addr_);
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#if defined ZMQ_HAVE_WINDOWS
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int get_interface_name (unsigned long index_, char **dest_) const;
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int wchar_to_utf8 (const WCHAR *src_, char **dest_) const;
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#endif
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};
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}
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#endif
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