coap_address.h File Reference

Representation of network addresses. More...

#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include "libcoap.h"
#include "coap3/coap_pdu.h"

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Data Structures
struct	coap_sockaddr_un
struct	coap_address_t
	Multi-purpose address abstraction. More...
struct	coap_addr_info_t
	Resolved addresses information. More...

Macros
#define	COAP_UNIX_PATH_MAX   (sizeof(struct sockaddr_in6) - sizeof(sa_family_t))

Typedefs
typedef struct coap_addr_info_t	coap_addr_info_t
	Resolved addresses information.
typedef enum coap_resolve_type_t	coap_resolve_type_t
	coap_resolve_type_t values

Enumerations
enum	coap_resolve_type_t { COAP_RESOLVE_TYPE_LOCAL , COAP_RESOLVE_TYPE_REMOTE }
	coap_resolve_type_t values More...

Functions
uint16_t	coap_address_get_port (const coap_address_t *addr)
	Returns the port from addr in host byte order.
void	coap_address_set_port (coap_address_t *addr, uint16_t port)
	Set the port field of addr to port (in host byte order).
int	coap_address_equals (const coap_address_t *a, const coap_address_t *b)
	Compares given address objects a and b.
int	_coap_address_isany_impl (const coap_address_t *a)
uint32_t	coap_get_available_scheme_hint_bits (int have_pki_psk, int ws_check, coap_proto_t use_unix_proto)
	Determine and set up scheme_hint_bits for a server that can be used in a call to coap_resolve_address_info().
coap_addr_info_t *	coap_resolve_address_info (const coap_str_const_t *address, uint16_t port, uint16_t secure_port, uint16_t ws_port, uint16_t ws_secure_port, int ai_hints_flags, int scheme_hint_bits, coap_resolve_type_t type)
	Resolve the specified address into a set of coap_address_t that can be used to bind() (local) or connect() (remote) to.
void	coap_free_address_info (coap_addr_info_t *info_list)
	Free off the one or more linked sets of coap_addr_info_t returned from coap_resolve_address_info().
void	coap_address_init (coap_address_t *addr)
	Resets the given coap_address_t object addr to its default values.
int	coap_address_set_unix_domain (coap_address_t *addr, const uint8_t *host, size_t host_len)
	Copy the parsed unix domain host into coap_address_t structure translating %2F into / on the way.
void	coap_address_copy (coap_address_t *dst, const coap_address_t *src)
COAP_STATIC_INLINE int	coap_address_isany (const coap_address_t *a)
	Checks if given address object a denotes the wildcard address.
int	coap_is_mcast (const coap_address_t *a)
	Checks if given address a denotes a multicast address.
int	coap_is_bcast (const coap_address_t *a)
	Checks if given address a denotes a broadcast address.
int	coap_is_af_unix (const coap_address_t *a)
	Checks if given address a denotes a AF_UNIX address.

Detailed Description

Representation of network addresses.

Definition in file coap_address.h.

Macro Definition Documentation

COAP_UNIX_PATH_MAX

#define COAP_UNIX_PATH_MAX   (sizeof(struct sockaddr_in6) - sizeof(sa_family_t))

Definition at line 138 of file coap_address.h.

Typedef Documentation

coap_addr_info_t

typedef struct coap_addr_info_t coap_addr_info_t

Resolved addresses information.

coap_resolve_type_t

typedef enum coap_resolve_type_t coap_resolve_type_t

coap_resolve_type_t values

Enumeration Type Documentation

coap_resolve_type_t

enum coap_resolve_type_t

coap_resolve_type_t values

Enumerator
COAP_RESOLVE_TYPE_LOCAL	local side of session
COAP_RESOLVE_TYPE_REMOTE	remote side of session

Definition at line 203 of file coap_address.h.

Function Documentation

_coap_address_isany_impl()

int _coap_address_isany_impl

(

const coap_address_t *

a

)

Definition at line 835 of file coap_address.c.

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coap_address_copy()

void coap_address_copy	(	coap_address_t *	dst,
		const coap_address_t *	src
	)

Definition at line 806 of file coap_address.c.

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coap_address_equals()

int coap_address_equals	(	const coap_address_t *	a,
		const coap_address_t *	b
	)

Compares given address objects a and b.

This function returns 1 if addresses are equal, 0 otherwise. The parameters a and b must not be NULL;

Definition at line 81 of file coap_address.c.

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coap_address_get_port()

uint16_t coap_address_get_port

(

const coap_address_t *

addr

)

Returns the port from addr in host byte order.

Definition at line 44 of file coap_address.c.

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coap_address_init()

void coap_address_init

(

coap_address_t *

addr

)

Resets the given coap_address_t object addr to its default values.

In particular, the member size must be initialized to the available size for storing addresses.

Parameters

addr	The coap_address_t object to initialize.

Definition at line 258 of file coap_address.c.

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coap_address_isany()

COAP_STATIC_INLINE int coap_address_isany

(

const coap_address_t *

a

)

Checks if given address object a denotes the wildcard address.

This function returns 1 if this is the case, 0 otherwise. The parameters a must not be NULL;

Definition at line 294 of file coap_address.h.

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coap_address_set_port()

void coap_address_set_port	(	coap_address_t *	addr,
		uint16_t	port
	)

Set the port field of addr to port (in host byte order).

Definition at line 62 of file coap_address.c.

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coap_address_set_unix_domain()

int coap_address_set_unix_domain	(	coap_address_t *	addr,
		const uint8_t *	host,
		size_t	host_len
	)

Copy the parsed unix domain host into coap_address_t structure translating %2F into / on the way.

All other fields set as appropriate.

Parameters

addr	coap_address_t to update.
host	The parsed host from the CoAP URI with potential %2F encoding.
host_len	The length of the parsed host from the CoAP URI with potential %2F encoding.

Returns

1 success, 0 failure.

Definition at line 268 of file coap_address.c.

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coap_free_address_info()

void coap_free_address_info

(

coap_addr_info_t *

info_list

)

Free off the one or more linked sets of coap_addr_info_t returned from coap_resolve_address_info().

Parameters

info_list

The set of coap_addr_info_t to free off.

Definition at line 795 of file coap_address.c.

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coap_get_available_scheme_hint_bits()

uint32_t coap_get_available_scheme_hint_bits	(	int	have_pki_psk,
		int	ws_check,
		coap_proto_t	use_unix_proto
	)

Determine and set up scheme_hint_bits for a server that can be used in a call to coap_resolve_address_info().

Parameters

have_pki_psk	Set to 1 if PSK/PKI information is known else 0.
ws_check	Set to 1 is WebSockets is to be included in the list else 0.
use_unix_proto	Set to the appropriate protocol to use for Unix sockets, else set to COAP_PROTO_NONE for INET / INET6 sockets.

Returns

A bit mask of the available CoAP protocols (can be 0 if none) suitable for passing to coap_resolve_address_info().

Definition at line 316 of file coap_address.c.

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coap_is_af_unix()

int coap_is_af_unix

(

const coap_address_t *

a

)

Checks if given address a denotes a AF_UNIX address.

This function returns 1 if a is of type AF_UNIX, 0 otherwise.

Definition at line 114 of file coap_address.c.

coap_is_bcast()

int coap_is_bcast

(

const coap_address_t *

a

)

Checks if given address a denotes a broadcast address.

This function returns 1 if a is broadcast, 0 otherwise.

Definition at line 169 of file coap_address.c.

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coap_is_mcast()

int coap_is_mcast

(

const coap_address_t *

a

)

Checks if given address a denotes a multicast address.

This function returns 1 if a is multicast, 0 otherwise.

Definition at line 124 of file coap_address.c.

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coap_resolve_address_info()

coap_addr_info_t * coap_resolve_address_info	(	const coap_str_const_t *	address,
		uint16_t	port,
		uint16_t	secure_port,
		uint16_t	ws_port,
		uint16_t	ws_secure_port,
		int	ai_hints_flags,
		int	scheme_hint_bits,
		coap_resolve_type_t	type
	)

Resolve the specified address into a set of coap_address_t that can be used to bind() (local) or connect() (remote) to.

Parameters

address	The Address to resolve.
port	The unsecured protocol port to use.
secure_port	The secured protocol port to use.
ws_port	The unsecured WebSockets port to use.
ws_secure_port	The secured WebSockets port to use.
ai_hints_flags	AI_* Hint flags to use for internal getaddrinfo().
scheme_hint_bits	Which schemes to return information for. One or more of COAP_URI_SCHEME_*_BIT or'd together.
type	COAP_ADDRESS_TYPE_LOCAL or COAP_ADDRESS_TYPE_REMOTE

Returns

One or more linked sets of coap_addr_info_t or NULL if error.

Definition at line 491 of file coap_address.c.

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