Mbed OS Socket API. More...

Data Structures
class	CellularNonIPSocket
	Socket implementation for cellular Non-IP data delivery(NIDD). More...
class	DNS
	Base class for DNS provider. More...
class	DTLSSocket
	DTLSSocket implement DTLS stream over UDP Socket. More...
class	DTLSSocketWrapper
	DTLSSocketWrapper implement DTLS stream over the existing Socket transport. More...
class	ICMPSocket
	ICMP socket implementation. More...
class	InternetDatagramSocket
	InternetDatagramSocket socket implementation. More...
class	InternetSocket
	Socket implementation that uses IP network stack. More...
class	NetworkStack
	NetworkStack class. More...
struct	nsapi_addr
	IP address structure for passing IP addresses by value. More...
struct	nsapi_wifi_ap
	nsapi_wifi_ap structure More...
struct	nsapi_stack
	nsapi_stack structure More...
struct	nsapi_ip_mreq
	nsapi_ip_mreq structure More...
struct	nsapi_stack_api
	nsapi_stack_api structure More...
class	Socket
	Socket interface. More...
class	SocketAddress
	SocketAddress class. More...
class	TCPServer
	TCP socket server. More...
class	TCPSocket
	TCP socket connection. More...
class	TLSSocket
	TLSSocket is a wrapper around TCPSocket for interacting with TLS servers. More...
class	TLSSocketWrapper
	TLSSocket is a wrapper around Socket for interacting with TLS servers. More...
class	UDPSocket
	UDP socket implementation. More...
Typedefs
typedef signed int	nsapi_error_t
	Type used to represent error codes.
typedef unsigned int	nsapi_size_t
	Type used to represent the size of data passed through sockets.
typedef signed int	nsapi_size_or_error_t
	Type used to represent either a size or error passed through sockets.
typedef signed int	nsapi_value_or_error_t
	Type used to represent either a value or error.
typedef enum nsapi_security	nsapi_security_t
	Enum of encryption types.
typedef struct nsapi_addr	nsapi_addr_t
	IP address structure for passing IP addresses by value.
typedef void *	nsapi_socket_t
	Opaque handle for network sockets.
typedef struct nsapi_wifi_ap	nsapi_wifi_ap_t
	nsapi_wifi_ap structure
typedef struct nsapi_stack	nsapi_stack_t
	nsapi_stack structure
typedef struct nsapi_ip_mreq	nsapi_ip_mreq_t
	nsapi_ip_mreq structure
typedef struct nsapi_stack_api	nsapi_stack_api_t
	nsapi_stack_api structure
Enumerations
enum	nsapi_error { NSAPI_ERROR_OK = 0, NSAPI_ERROR_WOULD_BLOCK = -3001, NSAPI_ERROR_UNSUPPORTED = -3002, NSAPI_ERROR_PARAMETER = -3003, NSAPI_ERROR_NO_CONNECTION = -3004, NSAPI_ERROR_NO_SOCKET = -3005, NSAPI_ERROR_NO_ADDRESS = -3006, NSAPI_ERROR_NO_MEMORY = -3007, NSAPI_ERROR_NO_SSID = -3008, NSAPI_ERROR_DNS_FAILURE = -3009, NSAPI_ERROR_DHCP_FAILURE = -3010, NSAPI_ERROR_AUTH_FAILURE = -3011, NSAPI_ERROR_DEVICE_ERROR = -3012, NSAPI_ERROR_IN_PROGRESS = -3013, NSAPI_ERROR_ALREADY = -3014, NSAPI_ERROR_IS_CONNECTED = -3015, NSAPI_ERROR_CONNECTION_LOST = -3016, NSAPI_ERROR_CONNECTION_TIMEOUT = -3017, NSAPI_ERROR_ADDRESS_IN_USE = -3018, NSAPI_ERROR_TIMEOUT = -3019, NSAPI_ERROR_BUSY = -3020 }
	Enum of standardized error codes. More...
enum	nsapi_connection_status { NSAPI_STATUS_LOCAL_UP = 0, NSAPI_STATUS_GLOBAL_UP = 1, NSAPI_STATUS_DISCONNECTED = 2, NSAPI_STATUS_CONNECTING = 3 }
	Enum of connection status types. More...
enum	nsapi_event { NSAPI_EVENT_CONNECTION_STATUS_CHANGE = 0, NSAPI_EVENT_CELLULAR_STATUS_BASE = 0x1000, NSAPI_EVENT_CELLULAR_STATUS_END = 0x1FFF }
	Enum of event types. More...
enum	nsapi_security { NSAPI_SECURITY_NONE = 0x0, NSAPI_SECURITY_WEP = 0x1, NSAPI_SECURITY_WPA = 0x2, NSAPI_SECURITY_WPA2 = 0x3, NSAPI_SECURITY_WPA_WPA2 = 0x4, NSAPI_SECURITY_PAP = 0x5, NSAPI_SECURITY_CHAP = 0x6, NSAPI_SECURITY_EAP_TLS = 0x7, NSAPI_SECURITY_PEAP = 0x8, NSAPI_SECURITY_WPA2_ENT = 0x9, NSAPI_SECURITY_UNKNOWN = 0xFF }
	Enum of encryption types. More...
enum	nsapi_version { NSAPI_UNSPEC, NSAPI_IPv4, NSAPI_IPv6 }
	Enum of IP address versions. More...
enum	nsapi_protocol { NSAPI_TCP, NSAPI_UDP, NSAPI_ICMP }
	Enum of socket protocols. More...
enum	nsapi_stack_level { NSAPI_STACK = 5000 }
	Enum of standardized stack option levels for use with NetworkStack::setstackopt and getstackopt. More...
enum	nsapi_stack_option { NSAPI_IPV4_MRU, NSAPI_IPV6_MRU }
	Enum of standardized stack option names for level NSAPI_STACK of NetworkStack::setstackopt and getstackopt. More...
enum	nsapi_socket_level { NSAPI_SOCKET = 7000 }
	Enum of standardized socket option levels for use with Socket::setsockopt and getsockopt. More...
enum	nsapi_socket_option { NSAPI_REUSEADDR, NSAPI_KEEPALIVE, NSAPI_KEEPIDLE, NSAPI_KEEPINTVL, NSAPI_LINGER, NSAPI_SNDBUF, NSAPI_RCVBUF, NSAPI_ADD_MEMBERSHIP, NSAPI_DROP_MEMBERSHIP, NSAPI_BIND_TO_DEVICE }
	Enum of standardized socket option names for level NSAPI_SOCKET of Socket::setsockopt and getsockopt. More...
enum	nsapi_tlssocket_level { NSAPI_TLSSOCKET_LEVEL = 7099 }
enum	nsapi_tlssocket_option { NSAPI_TLSSOCKET_SET_HOSTNAME, NSAPI_TLSSOCKET_SET_CACERT, NSAPI_TLSSOCKET_SET_CLCERT, NSAPI_TLSSOCKET_SET_CLKEY, NSAPI_TLSSOCKET_ENABLE }
enum	nsapi_ip_stack
	Supported IP protocol versions of IP stack. More...
Functions
NetworkStack *	nsapi_create_stack (nsapi_stack_t *stack)
	Convert a raw nsapi_stack_t object into a C++ NetworkStack object.
nsapi_error_t	nsapi_dns_query (nsapi_stack_t stack, const char host, nsapi_addr_t *addr, nsapi_version_t version)
	Query a domain name server for an IP address of a given hostname.
nsapi_size_or_error_t	nsapi_dns_query_multiple (nsapi_stack_t stack, const char host, nsapi_addr_t *addr, nsapi_size_t addr_count, nsapi_version_t version)
	Query a domain name server for multiple IP address of a given hostname.
nsapi_error_t	nsapi_dns_add_server (nsapi_addr_t addr, const char *interface_name)
	Add a domain name server to list of servers to query.
nsapi_error_t	nsapi_dns_query (NetworkStack stack, const char host, SocketAddress *addr, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname.
nsapi_error_t	nsapi_dns_query (NetworkStack stack, const char host, SocketAddress addr, const char interface_name, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname using Network interface name.
nsapi_error_t	nsapi_dns_query_async (NetworkStack stack, const char host, NetworkStack::hostbyname_cb_t callback, call_in_callback_cb_t call_in_cb, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname.
nsapi_error_t	nsapi_dns_query_async (NetworkStack stack, const char host, NetworkStack::hostbyname_cb_t callback, call_in_callback_cb_t call_in_cb, const char *interface_name, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname using Network interface name.
template<typename S >
nsapi_error_t	nsapi_dns_query (S stack, const char host, SocketAddress *addr, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname.
nsapi_size_or_error_t	nsapi_dns_query_multiple (NetworkStack stack, const char host, SocketAddress addr, nsapi_size_t addr_count, const char interface_name, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for multiple IP address of a given hostname.
nsapi_size_or_error_t	nsapi_dns_query_multiple_async (NetworkStack stack, const char host, NetworkStack::hostbyname_cb_t callback, nsapi_size_t addr_count, call_in_callback_cb_t call_in_cb, const char *interface_name, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for an IP address of a given hostname (asynchronous)
nsapi_size_or_error_t	nsapi_dns_query_multiple (nsapi_stack_t stack, const char host, nsapi_addr_t addr, nsapi_size_t addr_count, const char interface_name, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for multiple IP address of a given hostname.
template<typename S >
nsapi_size_or_error_t	nsapi_dns_query_multiple (S stack, const char host, SocketAddress *addr, nsapi_size_t addr_count, nsapi_version_t version=NSAPI_IPv4)
	Query a domain name server for multiple IP address of a given hostname.
nsapi_error_t	nsapi_dns_query_async_cancel (nsapi_size_or_error_t id)
	Cancels asynchronous hostname translation.
void	nsapi_dns_call_in_set (call_in_callback_cb_t callback)
	Set a call in callback.
void	nsapi_dns_reset ()
	nsapi_dns_reset Resets all internal states and frees reserved memory, see NOTE! Can be used to clean up system resources when there is no need for network connections.
static nsapi_error_t	nsapi_dns_add_server (const SocketAddress &address, const char *interface_name)
	Add a domain name server to list of servers to query.
static nsapi_error_t	nsapi_dns_add_server (const char address, const char interface_name)
	Add a domain name server to list of servers to query.

Detailed Description

Mbed OS Socket API.

Typedef Documentation

typedef struct nsapi_addr nsapi_addr_t

IP address structure for passing IP addresses by value.

typedef signed int nsapi_error_t

Type used to represent error codes.

This is a separate type from enum nsapi_error to avoid breaking compatibility in type-sensitive overloads

Definition at line 95 of file nsapi_types.h.

typedef struct nsapi_ip_mreq nsapi_ip_mreq_t

nsapi_ip_mreq structure

typedef enum nsapi_security nsapi_security_t

Enum of encryption types.

The security type specifies a particular security to use when connected to a WiFi network

typedef signed int nsapi_size_or_error_t

Type used to represent either a size or error passed through sockets.

A valid nsapi_size_or_error_t is either a non-negative size or a negative error code from the nsapi_error_t

Definition at line 106 of file nsapi_types.h.

typedef unsigned int nsapi_size_t

Type used to represent the size of data passed through sockets.

Definition at line 99 of file nsapi_types.h.

typedef void* nsapi_socket_t

Opaque handle for network sockets.

Definition at line 205 of file nsapi_types.h.

typedef struct nsapi_stack_api nsapi_stack_api_t

nsapi_stack_api structure

Common api structure for network stack operations. A network stack can provide a nsapi_stack_api structure filled out with the appropriate implementation.

Unsupported operations can be left as null pointers.

typedef struct nsapi_stack nsapi_stack_t

nsapi_stack structure

Stack structure representing a specific instance of a stack.

typedef signed int nsapi_value_or_error_t

Type used to represent either a value or error.

A valid nsapi_value_or_error_t is either a non-negative value or a negative error code from the nsapi_error_t

Definition at line 113 of file nsapi_types.h.

typedef struct nsapi_wifi_ap nsapi_wifi_ap_t

nsapi_wifi_ap structure

Structure representing a WiFi Access Point

Enumeration Type Documentation

enum nsapi_connection_status

Enum of connection status types.

Valid error codes have negative values.

Enumerator:

NSAPI_STATUS_LOCAL_UP	local IP address set
NSAPI_STATUS_GLOBAL_UP	global IP address set
NSAPI_STATUS_DISCONNECTED	no connection to network
NSAPI_STATUS_CONNECTING	connecting to network

Definition at line 68 of file nsapi_types.h.

enum nsapi_error

Enum of standardized error codes.

Valid error codes have negative values and may be returned by any network operation.

Enumerator:

NSAPI_ERROR_OK	no error
NSAPI_ERROR_WOULD_BLOCK	no data is not available but call is non-blocking
NSAPI_ERROR_UNSUPPORTED	unsupported functionality
NSAPI_ERROR_PARAMETER	invalid configuration
NSAPI_ERROR_NO_CONNECTION	not connected to a network
NSAPI_ERROR_NO_SOCKET	socket not available for use
NSAPI_ERROR_NO_ADDRESS	IP address is not known
NSAPI_ERROR_NO_MEMORY	memory resource not available
NSAPI_ERROR_NO_SSID	ssid not found
NSAPI_ERROR_DNS_FAILURE	DNS failed to complete successfully
NSAPI_ERROR_DHCP_FAILURE	DHCP failed to complete successfully
NSAPI_ERROR_AUTH_FAILURE	connection to access point failed
NSAPI_ERROR_DEVICE_ERROR	failure interfacing with the network processor
NSAPI_ERROR_IN_PROGRESS	operation (eg connect) in progress
NSAPI_ERROR_ALREADY	operation (eg connect) already in progress
NSAPI_ERROR_IS_CONNECTED	socket is already connected
NSAPI_ERROR_CONNECTION_LOST	connection lost
NSAPI_ERROR_CONNECTION_TIMEOUT	connection timed out
NSAPI_ERROR_ADDRESS_IN_USE	Address already in use
NSAPI_ERROR_TIMEOUT	operation timed out
NSAPI_ERROR_BUSY	device is busy and cannot accept new operation

Definition at line 37 of file nsapi_types.h.

enum nsapi_event

Enum of event types.

Event callbacks are accompanied with an event-dependent parameter passed as an intptr_t.

Enumerator:

NSAPI_EVENT_CONNECTION_STATUS_CHANGE	network connection status has changed, the parameter = new status (nsapi_connection_status_t)
NSAPI_EVENT_CELLULAR_STATUS_BASE	Cellular modem status has changed, See the enum values from enum cellular_connection_status_t in /features/cellular/framework/common/CellularCommon.h
NSAPI_EVENT_CELLULAR_STATUS_END	cellular modem status has changed, See the enum values from enum cellular_connection_status_t in /features/cellular/framework/common/CellularCommon.h

Definition at line 83 of file nsapi_types.h.

enum nsapi_ip_stack

Supported IP protocol versions of IP stack.

Definition at line 289 of file nsapi_types.h.

enum nsapi_protocol

Enum of socket protocols.

The socket protocol specifies a particular protocol to be used with a newly created socket.

Enumerator:

NSAPI_TCP	Socket is of TCP type
NSAPI_UDP	Socket is of UDP type
NSAPI_ICMP	Socket is of ICMP type

Definition at line 215 of file nsapi_types.h.

enum nsapi_security

Enum of encryption types.

The security type specifies a particular security to use when connected to a WiFi network

Enumerator:

NSAPI_SECURITY_NONE	open access point
NSAPI_SECURITY_WEP	phrase conforms to WEP
NSAPI_SECURITY_WPA	phrase conforms to WPA
NSAPI_SECURITY_WPA2	phrase conforms to WPA2
NSAPI_SECURITY_WPA_WPA2	phrase conforms to WPA/WPA2
NSAPI_SECURITY_PAP	phrase conforms to PPP authentication context
NSAPI_SECURITY_CHAP	phrase conforms to PPP authentication context
NSAPI_SECURITY_EAP_TLS	phrase conforms to EAP-TLS
NSAPI_SECURITY_PEAP	phrase conforms to PEAP
NSAPI_SECURITY_WPA2_ENT	phrase conforms to WPA2-AES and WPA-TKIP with enterprise security
NSAPI_SECURITY_UNKNOWN	unknown/unsupported security in scan results

Definition at line 120 of file nsapi_types.h.

enum nsapi_socket_level

Enum of standardized socket option levels for use with Socket::setsockopt and getsockopt.

Enumerator:

NSAPI_SOCKET

Socket option level - see nsapi_socket_option_t for options

Definition at line 248 of file nsapi_types.h.

enum nsapi_socket_option

Enum of standardized socket option names for level NSAPI_SOCKET of Socket::setsockopt and getsockopt.

These options may not be supported on all stacks, in which case NSAPI_ERROR_UNSUPPORTED may be returned.

Enumerator:

NSAPI_REUSEADDR	Allow bind to reuse local addresses
NSAPI_KEEPALIVE	Enables sending of keepalive messages
NSAPI_KEEPIDLE	Sets timeout value to initiate keepalive
NSAPI_KEEPINTVL	Sets timeout value for keepalive
NSAPI_LINGER	Keeps close from returning until queues empty
NSAPI_SNDBUF	Sets send buffer size
NSAPI_RCVBUF	Sets recv buffer size
NSAPI_ADD_MEMBERSHIP	Add membership to multicast address
NSAPI_DROP_MEMBERSHIP	Drop membership to multicast address
NSAPI_BIND_TO_DEVICE	Bind socket network interface name

Definition at line 260 of file nsapi_types.h.

enum nsapi_stack_level

Enum of standardized stack option levels for use with NetworkStack::setstackopt and getstackopt.

Enumerator:

NSAPI_STACK

Stack option level - see nsapi_stack_option_t for options

Definition at line 226 of file nsapi_types.h.

enum nsapi_stack_option

Enum of standardized stack option names for level NSAPI_STACK of NetworkStack::setstackopt and getstackopt.

These options may not be supported on all stacks, in which case NSAPI_ERROR_UNSUPPORTED may be returned.

Enumerator:

NSAPI_IPV4_MRU	Sets/gets size of largest IPv4 fragmented datagram to reassemble
NSAPI_IPV6_MRU	Sets/gets size of largest IPv6 fragmented datagram to reassemble

Definition at line 238 of file nsapi_types.h.

enum nsapi_tlssocket_level

Enumerator:

NSAPI_TLSSOCKET_LEVEL

TLSSocket option level - see nsapi_tlssocket_option_t for options

Definition at line 273 of file nsapi_types.h.

enum nsapi_tlssocket_option

Enumerator:

NSAPI_TLSSOCKET_SET_HOSTNAME	Set host name
NSAPI_TLSSOCKET_SET_CACERT	Set server CA certificate
NSAPI_TLSSOCKET_SET_CLCERT	Set client certificate
NSAPI_TLSSOCKET_SET_CLKEY	Set client key
NSAPI_TLSSOCKET_ENABLE	Enable TLSSocket

Definition at line 277 of file nsapi_types.h.

enum nsapi_version

Enum of IP address versions.

The IP version specifies the type of an IP address.

Enumerator:

NSAPI_UNSPEC	Address is unspecified
NSAPI_IPv4	Address is IPv4
NSAPI_IPv6	Address is IPv6

Definition at line 180 of file nsapi_types.h.

Function Documentation

NetworkStack* nsapi_create_stack ( nsapi_stack_t * stack )

Convert a raw nsapi_stack_t object into a C++ NetworkStack object.

Parameters:

stack

Reference to an object that can be converted to a stack

A raw nsapi_stack_t object
A reference to a network stack
A reference to a network interface

Returns:: Reference to the underlying network stack

Definition at line 386 of file NetworkStack.cpp.

static nsapi_error_t nsapi_dns_add_server	(	const SocketAddress &	address,
		const char *	interface_name
	)		`[static]`

Add a domain name server to list of servers to query.

Parameters:

addr	Destination for the host address

Returns:: 0 on success, negative error code on failure

Definition at line 254 of file nsapi_dns.h.

static nsapi_error_t nsapi_dns_add_server	(	const char *	address,
		const char *	interface_name
	)		`[static]`

Add a domain name server to list of servers to query.

Parameters:

addr	Destination for the host address

Returns:: 0 on success, negative error code on failure

Definition at line 264 of file nsapi_dns.h.

nsapi_error_t nsapi_dns_add_server	(	nsapi_addr_t	addr,
		const char *	interface_name
	)

Add a domain name server to list of servers to query.

Parameters:

addr	Destination for the host address

Returns:: 0 on success, negative error code on failure

Definition at line 134 of file nsapi_dns.cpp.

void nsapi_dns_call_in_set ( call_in_callback_cb_t callback )

Set a call in callback.

Can be used to provide an application specific call in callback to DNS resolver. When callback is set it is used instead of stack specific call in callbacks.

Parameters:

callback Callback

Definition at line 639 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query	(	NetworkStack *	stack,
		const char *	host,
		SocketAddress *	addr,
		const char *	interface_name,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname using Network interface name.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
interface_name	Network interface name
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: See nsapi_dns_query_multiple

Definition at line 616 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query	(	nsapi_stack_t *	stack,
		const char *	host,
		nsapi_addr_t *	addr,
		nsapi_version_t	version
	)

Query a domain name server for an IP address of a given hostname.

Query a domain name server for an IP address of a given hostname (asynchronous)

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve

Returns:: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Query a domain name server for an IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 599 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query	(	S *	stack,
		const char *	host,
		SocketAddress *	addr,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 145 of file nsapi_dns.h.

nsapi_error_t nsapi_dns_query	(	NetworkStack *	stack,
		const char *	host,
		SocketAddress *	addr,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 607 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query_async	(	NetworkStack *	stack,
		const char *	host,
		NetworkStack::hostbyname_cb_t	callback,
		call_in_callback_cb_t	call_in_cb,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
callback	Callback that is called for result
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure or an unique id that represents the hostname translation operation and can be passed to cancel, NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 625 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query_async	(	NetworkStack *	stack,
		const char *	host,
		NetworkStack::hostbyname_cb_t	callback,
		call_in_callback_cb_t	call_in_cb,
		const char *	interface_name,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname using Network interface name.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
callback	Callback that is called for result
interface_name	Network interface name
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure or an unique id that represents the hostname translation operation and can be passed to cancel, NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 632 of file nsapi_dns.cpp.

nsapi_error_t nsapi_dns_query_async_cancel ( nsapi_size_or_error_t id )

Cancels asynchronous hostname translation.

When translation is cancelled, callback will not be called.

Parameters:

id	Unique id of the hostname translation operation

Returns:: 0 on success, negative error code on failure

Definition at line 853 of file nsapi_dns.cpp.

nsapi_size_or_error_t nsapi_dns_query_multiple	(	nsapi_stack_t *	stack,
		const char *	host,
		nsapi_addr_t *	addr,
		nsapi_size_t	addr_count,
		const char *	interface_name,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for multiple IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Array for the host addresses
addr_count	Number of addresses allocated in the array
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: Number of addresses found on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 576 of file nsapi_dns.cpp.

nsapi_size_or_error_t nsapi_dns_query_multiple	(	nsapi_stack_t *	stack,
		const char *	host,
		nsapi_addr_t *	addr,
		nsapi_size_t	addr_count,
		nsapi_version_t	version
	)

Query a domain name server for multiple IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Array for the host addresses
addr_count	Number of addresses allocated in the array
version	IP version to resolve

Returns:: Number of addresses found on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

nsapi_size_or_error_t nsapi_dns_query_multiple	(	NetworkStack *	stack,
		const char *	host,
		SocketAddress *	addr,
		nsapi_size_t	addr_count,
		const char *	interface_name,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for multiple IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Array for the host addresses
addr_count	Number of addresses allocated in the array
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: Positive number of addresses found on success

Return values:

NSAPI_ERROR_PARAMETER	if provided parameters are invalid
NSAPI_ERROR_NO_MEMORY	if allocation fails due to lack of memory
NSAPI_ERROR_DNS_FAILURE	if DNS resolution fails
NSAPI_ERROR_WOULD_BLOCK	in case non-blocking mode is enabled and DNS cannot be resolved immediately.

Definition at line 583 of file nsapi_dns.cpp.

nsapi_size_or_error_t nsapi_dns_query_multiple	(	S *	stack,
		const char *	host,
		SocketAddress *	addr,
		nsapi_size_t	addr_count,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for multiple IP address of a given hostname.

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Array for the host addresses
addr_count	Number of addresses allocated in the array
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: Number of addresses found on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 208 of file nsapi_dns.h.

nsapi_size_or_error_t nsapi_dns_query_multiple_async	(	NetworkStack *	stack,
		const char *	host,
		NetworkStack::hostbyname_cb_t	callback,
		nsapi_size_t	addr_count,
		call_in_callback_cb_t	call_in_cb,
		const char *	interface_name,
		nsapi_version_t	version = `NSAPI_IPv4`
	)

Query a domain name server for an IP address of a given hostname (asynchronous)

Parameters:

stack	Network stack as target for DNS query
host	Hostname to resolve
callback	Callback that is called for result
addr_count	Number of addresses allocated in the array
version	IP version to resolve (defaults to NSAPI_IPv4)

Returns:: 0 on success, negative error code on failure or an unique id that represents the hostname translation operation and can be passed to cancel, NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Definition at line 661 of file nsapi_dns.cpp.

void nsapi_dns_reset ( )

nsapi_dns_reset Resets all internal states and frees reserved memory, see NOTE! Can be used to clean up system resources when there is no need for network connections.

NOTE: Does NOT clear asynchronous ongoing operations! Currently only cleans up DNS cache (if used)

Definition at line 644 of file nsapi_dns.cpp.

Type:	Library
Created:	17 Dec 2019
Imports:	79
Forks:	0
Commits:	2
Dependents:	2
Dependencies:	0
Followers:	1

Important changes to repositories hosted on mbed.com

Netsocket

Data Structures

Typedefs

Enumerations

Functions

Detailed Description

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

Important changes to repositories hosted on mbed.com

Netsocket

Data Structures

Typedefs

Enumerations

Functions

Detailed Description

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning