/usr/include/dnscore/host_address.h is in libyadifa-dev 2.1.6-1.
This file is owned by root:root, with mode 0o644.
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*
* Copyright (c) 2011-2016, EURid. All rights reserved.
* The YADIFA TM software product is provided under the BSD 3-clause license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of EURid nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*------------------------------------------------------------------------------
*
*/
/** @defgroup dnscoretools Generic Tools
* @ingroup dnscore
* @brief
*
* @{
*/
/*----------------------------------------------------------------------------*/
#ifndef HOST_ADDRESS_H
#define HOST_ADDRESS_H
#include <netdb.h>
#include <sys/socket.h>
#include <dnscore/dnscore.h>
#include <dnscore/network.h>
#define HOSTADDR_TAG 0x5244444154534f48
#define SOCKADD4_TAG 0x344444414b434f53
#define SOCKADD6_TAG 0x364444414b434f53
struct addrinfo;
struct sockaddr;
#define HOST_ADDRESS_IPV4 0x04
#define HOST_ADDRESS_IPV6 0x06
#define HOST_ADDRESS_DNAME 0xfe
#define HOST_ADDRESS_NONE 0x00
typedef union addressv4 addressv4;
union addressv4
{
u8 bytes[4];
u32 value;
};
/*
* Returns true if all the address bits are set respectively to 0
*/
#define IPV6_ADDRESS_ALL0(_a_) (((_a_).lohi[0] == 0) && ((_a_).lohi[1] == 0))
/*
* Returns true if all the address bits are set respectively to 1
*/
#define IPV6_ADDRESS_ALL1(_a_) (((_a_).lohi[0] == ~0) && ((_a_).lohi[1] == ~0))
/*
* Flag values for the host_address_to_str(...) function
*/
#define HOST_ADDRESS_TO_STR_PORT 1 // "1.2.3.4:1234"
#define HOST_ADDRESS_TO_STR_FULLPORT 2 // "1.2.3.4 port 1234"
#define HOST_ADDRESS_TO_STR_TSIG 4 // "1.2.3.4*mykey."
#define HOST_ADDRESS_TO_STR_FULLTSIG 8 // "1.2.3.4 key mykey."
#define HOST_ADDRESS_TO_STR_SHOW_PORT_ZERO 8 // else hides it
typedef union addressv6 addressv6;
union addressv6
{
u8 bytes[16];
u32 dwords[4];
u64 lohi[2];
};
/*
* The host_address is also used for notify.
* It needs to be able to store names as well
*/
typedef union addressdname addressdname;
union addressdname
{
u8 *dname;
};
/*
* Represents an ip:port. Linkable.
* First made for the notification list.
*/
//typedef struct tsig_item tsig_item;
#if DNSCORE_HAS_TSIG_SUPPORT
struct tsig_item;
#endif
typedef struct host_address host_address;
struct host_address
{
struct host_address *next;
#if DNSCORE_HAS_TSIG_SUPPORT
const struct tsig_item *tsig; /* pointer to the structure used for TSIG, to be used in relevant cases */
#endif
union
{
addressv4 v4;
addressv6 v6;
addressdname dname;
} ip;
u16 port;
u8 version;
};
#define HOST_ADDRESS_EMPTY {NULL, NULL, .ip.v4.value=0, 0, HOST_ADDRESS_NONE}
host_address *host_address_alloc();
host_address *host_address_copy(const host_address *address);
host_address *host_address_copy_list(const host_address *address);
/**
* Clears the content of a host_address (mostly : deletes the dname if it's
* what it contains.
*
* @param the host address
*/
void host_address_clear(host_address *address);
/**
* Deletes a single host addresse
*
* @param the host address
*/
void host_address_delete(host_address *address);
/**
* Deletes a list of host addresses
*
* @param the first host address from the list
*/
void host_address_delete_list(host_address *address);
void host_set_default_port_value(host_address *address, u16 port);
u32 host_address_count(const host_address *address);
static inline bool
host_address_empty(host_address *address)
{
return (address == NULL);
}
ya_result host_address2addrinfo(struct addrinfo **sa, const host_address *address);
ya_result host_address2allocated_sockaddr(struct sockaddr **sap, const host_address *address);
ya_result host_address2sockaddr(socketaddress *sap, const host_address *address);
/**
* It does not set the "next" pointer, NONE of the "set" functions do.
*
* @param sa
* @param address
* @return
*/
ya_result host_address_set_with_sockaddr(host_address *address, const socketaddress *sa);
bool host_address_list_contains_ip(host_address *address, const socketaddress *sa);
#if DNSCORE_HAS_TSIG_SUPPORT
bool host_address_list_contains_ip_tsig(host_address *address, const socketaddress *sa, const struct tsig_item *tsig);
#endif
bool host_address_list_contains_host(host_address *address, const host_address *ha);
bool host_address_list_equals(const host_address *a, const host_address *b);
bool host_address_equals(const host_address *a, const host_address *b);
s32 host_address_compare(const host_address *a, const host_address *b);
bool host_address_match(const host_address *a, const host_address *b);
void host_address_set_ipv4(host_address *address, const u8 *ipv4, u16 port);
void host_address_set_ipv6(host_address *address, const u8 *ipv6, u16 port);
/**
* It does not set the "next" pointer, NONE of the "set" functions do.
* An address set like this will need to be freed with host_address_clear()
* or deleted with host_address_delete or host_address_delete_list
*
* @param address
* @param dname
* @param port
*/
void host_address_set_dname(host_address *address, const u8 *dname, u16 port);
ya_result host_address_append_ipv4(host_address *address, const u8 *ipv4, u16 port);
ya_result host_address_append_ipv6(host_address *address, const u8 *ipv6, u16 port);
ya_result host_address_append_dname(host_address *address, const u8 *dname, u16 port);
ya_result host_address_append_host_address(host_address *address, const host_address *ha);
ya_result host_address_append_hostent(host_address *address, struct hostent *he, u16 port);
host_address *host_address_remove_host_address(host_address **address, host_address *ha_match);
bool host_address_update_host_address_list(host_address **dp, host_address *s);
static inline const host_address *host_address_get_at_index(const host_address *ha_list, u32 idx)
{
while((idx > 0) && (ha_list != NULL))
{
ha_list = ha_list->next;
idx--;
}
return ha_list;
}
/**
*
* host_address_to_str
*
* writes an address to a string, with optional details
*
* @param address
* @param str
* @param len
* @param flags
* @return
*/
ya_result host_address_to_str(const host_address *address, char *str, int len, u8 flags);
#endif /* HOST_ADDRESS_H */
/** @} */
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