Record API provides an NDEF record.

Required Header

#include <nfc.h>

Overview

The NDEF record api provides functions to make NDEF record

create / destroy NDEF record
set / get elements from NDEF record

Related Features

This API is related with the following features:

http://tizen.org/feature/network.nfc

It is recommended to design feature related codes in your application for reliability.

You can check if a device supports the related features for this API by using System Information, thereby controlling the procedure of your application.

To ensure your application is only running on the device with specific features, please define the features in your manifest file using the manifest editor in the SDK.

More details on featuring your application can be found from Feature Element.

Functions
int	nfc_ndef_record_create (nfc_ndef_record_h record, nfc_record_tnf_e tnf, const unsigned char type, int type_size, const unsigned char id, int id_size, const unsigned char payload, unsigned int payload_size)
	Creates a record with given parameter value.
int	nfc_ndef_record_create_text (nfc_ndef_record_h record, const char text, const char *lang_code, nfc_encode_type_e encode)
	Creates a record with text type payload.
int	nfc_ndef_record_create_uri (nfc_ndef_record_h record, const char uri)
	Creates a record with URI type payload.
int	nfc_ndef_record_create_mime (nfc_ndef_record_h record, const char mime_type, const unsigned char *data, unsigned int data_size)
	Creates a record with MIME type payload.
int	nfc_ndef_record_destroy (nfc_ndef_record_h record)
	Destroys the record handle.
int	nfc_ndef_record_set_id (nfc_ndef_record_h record, unsigned char *id, int id_size)
	Sets record ID.
int	nfc_ndef_record_get_id (nfc_ndef_record_h record, unsigned char *id, int size)
	Gets record ID.
int	nfc_ndef_record_get_payload (nfc_ndef_record_h record, unsigned char *payload, unsigned int size)
	Gets record payload.
int	nfc_ndef_record_get_type (nfc_ndef_record_h record, unsigned char *type, int size)
	Gets record type.
int	nfc_ndef_record_get_tnf (nfc_ndef_record_h record, nfc_record_tnf_e *tnf)
	Gets record TNF(Type Name Format) value.
int	nfc_ndef_record_get_text (nfc_ndef_record_h record, char **text)
	Gets text from text record.
int	nfc_ndef_record_get_langcode (nfc_ndef_record_h record, char **lang_code)
	Gets language code from text record.
int	nfc_ndef_record_get_encode_type (nfc_ndef_record_h record, nfc_encode_type_e *encode)
	Gets encoding type from text record.
int	nfc_ndef_record_get_uri (nfc_ndef_record_h record, char **uri)
	Gets URI from uri record.
int	nfc_ndef_record_get_mime_type (nfc_ndef_record_h record, char **mime_type)
	Gets mime type from mime type record.
Typedefs
typedef struct _ndef_record_s *	nfc_ndef_record_h
	The handle to the NDEF record.

Typedef Documentation

typedef struct _ndef_record_s* nfc_ndef_record_h

The handle to the NDEF record.

Since :: 2.3

Enumeration Type Documentation

enum nfc_encode_type_e

Enumerations for NFC encode types.

Since :: 2.3

Enumerator:

NFC_ENCODE_UTF_8	UTF-8
NFC_ENCODE_UTF_16	UTF-16

enum nfc_record_tnf_e

Enumerations for record TNF (Type Name Format)

Since :: 2.3

It is indicate format of type field

Enumerator:

NFC_RECORD_TNF_EMPTY	Empty
NFC_RECORD_TNF_WELL_KNOWN	RTD(Record Type Definition) type format [NFC RTD]
NFC_RECORD_TNF_MIME_MEDIA	MIME Media types in RFC 2046 [RFC 2046]
NFC_RECORD_TNF_URI	Absolute URI as defined in RFC 3986 [RFC 3986]
NFC_RECORD_TNF_EXTERNAL_RTD	NFC Forum external type [NFC RTD]
NFC_RECORD_TNF_UNKNOWN	Unknown The payload type is unknown
NFC_RECORD_TNF_UNCHANGED	It means the payload is an intermediate or final chunk of a chunked NDEF Record

Function Documentation

int nfc_ndef_record_create	(	nfc_ndef_record_h *	record,
		nfc_record_tnf_e	tnf,
		const unsigned char *	type,
		int	type_size,
		const unsigned char *	id,
		int	id_size,
		const unsigned char *	payload,
		unsigned int	payload_size
	)

Creates a record with given parameter value.

Since :: 2.3

Remarks:: Every data buffer is deeply copied.
Every data is a byte array(binary data).

Parameters:

[out]	record	A handle to record
[in]	tnf	The type name format
[in]	type	The specified type name
[in]	type_size	The byte size of type
[in]	id	The record ID
[in]	id_size	The byte size of ID
[in]	payload	The payload of this record
[in]	payload_size	The byte size of payload

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_OUT_OF_MEMORY	Out of memory

See also:: nfc_ndef_record_create_text(); nfc_ndef_record_create_uri(); nfc_ndef_record_create_mime(); nfc_ndef_record_destroy(); nfc_manager_initialize()

int nfc_ndef_record_create_mime	(	nfc_ndef_record_h *	record,
		const char *	mime_type,
		const unsigned char *	data,
		unsigned int	data_size
	)

Creates a record with MIME type payload.

Since :: 2.3

Remarks:

The data buffer will be deep copied.
The data are bytes array(binary data).
The mime_type string will deep copied.
The record is created in this format

TNF : NFC_RECORD_TNF_MIME_MEDIA
type : mime type
payload : data
Defined in Record Type Definition Technical Specifications.

Parameters:

[out]	record	A handle to record
[in]	mime_type	The mime type [RFC 2046] (ex. text/plain, image/jpeg ) This value is stored in type field
[in]	data	The pointer of data
[in]	data_size	The size of data

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_OUT_OF_MEMORY	Out of memory

See also:: nfc_ndef_record_create(); nfc_ndef_record_create_uri(); nfc_ndef_record_create_text(); nfc_ndef_record_destroy(); nfc_ndef_record_get_mime_type(); nfc_manager_initialize()

int nfc_ndef_record_create_text	(	nfc_ndef_record_h *	record,
		const char *	text,
		const char *	lang_code,
		nfc_encode_type_e	encode
	)

Creates a record with text type payload.

Since :: 2.3

Remarks:

This function does not encode the text. text will be assumed as that it is already encoded with encode type.
The text buffer will be deeply copied.
The record is created in this format

TNF : NFC_RECORD_TNF_WELL_KNOWN
type : "T"
payload : encode and header information + language code + text
Defined in Record Type Definition Technical Specifications.

Parameters:

[out]	record	A handle to record
[in]	text	The encoded text
[in]	lang_code	The language code string value followed by IANA[RFC 3066] (ex: en-US, ko-KR)
[in]	encode	The encoding type

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_OUT_OF_MEMORY	Out of memory

See also:: nfc_ndef_record_create(); nfc_ndef_record_create_uri(); nfc_ndef_record_create_mime(); nfc_ndef_record_destroy(); nfc_ndef_record_get_text(); nfc_ndef_record_get_langcode(); nfc_ndef_record_get_encode_type(); nfc_manager_initialize()

int nfc_ndef_record_create_uri	(	nfc_ndef_record_h *	record,
		const char *	uri
	)

Creates a record with URI type payload.

Since :: 2.3

Remarks:

The uri string will be deep copied.
The record is created in this format

TNF : NFC_RECORD_TNF_WELL_KNOWN
type : "U"
payload : protocol scheme + uri
Defined in Record Type Definition Technical Specifications.

Parameters:

[out]	record	A handle to record
[in]	uri	The URI string that will be stored in the payload

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_OUT_OF_MEMORY	Out of memory

See also:: nfc_ndef_record_create(); nfc_ndef_record_create_text(); nfc_ndef_record_create_mime(); nfc_ndef_record_destroy(); nfc_ndef_record_get_uri(); nfc_manager_initialize()

int nfc_ndef_record_destroy ( nfc_ndef_record_h record )

Destroys the record handle.

Since :: 2.3

Parameters:

[in] record The handle to record

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter

See also:: nfc_ndef_record_create(); nfc_ndef_record_create_text(); nfc_ndef_record_create_uri(); nfc_ndef_record_create_mime(); nfc_manager_initialize()

int nfc_ndef_record_get_encode_type	(	nfc_ndef_record_h	record,
		nfc_encode_type_e *	encode
	)

Gets encoding type from text record.

Since :: 2.3

Remarks:: This function is valid only for text type record.
The text type record 's tnf is NFC_RECORD_TNF_WELL_KNOWN and it's type is "T"

Parameters:

[in]	record	The handle to record
[out]	encode	encode type nfc_encode_type_e

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_INVALID_RECORD_TYPE	Invalid record type

See also:: nfc_ndef_record_create_text(); nfc_manager_initialize()

int nfc_ndef_record_get_id	(	nfc_ndef_record_h	record,
		unsigned char **	id,
		int *	size
	)

Gets record ID.

Since :: 2.3

Remarks:: It may return NULL pointer if the ID is not exist
This function gives you the pointer of ID that is contained by record
Do not free the ID. It will be released when record is destroyed by nfc_ndef_record_destroy().

Parameters:

[in]	record	The handle to record
[out]	id	The record ID ( do not free )
[out]	size	The size of ID in bytes

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter

See also:: nfc_ndef_record_set_id(); nfc_manager_initialize()

int nfc_ndef_record_get_langcode	(	nfc_ndef_record_h	record,
		char **	lang_code
	)

Gets language code from text record.

Since :: 2.3

Remarks:: This function returns newly allocated string, this value must be deallocated by caller.
This function is valid only for text type record.
The text type record 's tnf is NFC_RECORD_TNF_WELL_KNOWN and it's type is "T"

Parameters:

[in]	record	The handle to record
[out]	lang_code	lang code ( should be freed by caller )

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_INVALID_RECORD_TYPE	Invalid record type

See also:: nfc_ndef_record_create_text(); nfc_manager_initialize()

int nfc_ndef_record_get_mime_type	(	nfc_ndef_record_h	record,
		char **	mime_type
	)

Gets mime type from mime type record.

Since :: 2.3

Remarks:: The function returns newly allocated string, this value must be deallocated by caller.
This function is valid only for mime type record.
The uri type record 's tnf is NFC_RECORD_TNF_MIME_MEDIA.

Parameters:

[in]	record	The handle to record
[out]	mime_type	The mime type in record payload ( should be freed by caller )

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_INVALID_RECORD_TYPE	Invalid record type

See also:: nfc_ndef_record_create_mime(); nfc_manager_initialize()

int nfc_ndef_record_get_payload	(	nfc_ndef_record_h	record,
		unsigned char **	payload,
		unsigned int *	size
	)

Gets record payload.

Since :: 2.3

Remarks:: This function gives you the pointer of payload that is contained by record
Do not free the payload. it will be freed when record is destroyed by nfc_ndef_record_destroy().

Parameters:

[in]	record	The handle to record
[out]	payload	The payload ( do not free this pointer )
[out]	size	the size of payload in byte

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter

See also:: nfc_manager_initialize()

int nfc_ndef_record_get_text	(	nfc_ndef_record_h	record,
		char **	text
	)

Gets text from text record.

Since :: 2.3

Remarks:: This function returns newly allocated string, this value must be deallocated by caller.
This function is valid only for text type record.
The text type record 's tnf is NFC_RECORD_TNF_WELL_KNOWN and it's type is "T"

Parameters:

[in]	record	The handle to record
[out]	text	The text in record payload ( should be freed by caller )

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_INVALID_RECORD_TYPE	Invalid record type

See also:: nfc_ndef_record_create_text(); nfc_manager_initialize()

int nfc_ndef_record_get_tnf	(	nfc_ndef_record_h	record,
		nfc_record_tnf_e *	tnf
	)

Gets record TNF(Type Name Format) value.

Since :: 2.3

Parameters:

[in]	record	The handle to record
[out]	tnf	The TNF(Type Name Format) value

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter

See also:: nfc_manager_initialize()

int nfc_ndef_record_get_type	(	nfc_ndef_record_h	record,
		unsigned char **	type,
		int *	size
	)

Gets record type.

Since :: 2.3

Remarks:: This function gives you the pointer of type that is contained by record.
Do not free the type. it will be freed when the record is freed.

Parameters:

[in]	record	The handle to record
[out]	type	The record type ( do not free this pointer )
[out]	size	The size of type in byte

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter

See also:: nfc_manager_initialize()

int nfc_ndef_record_get_uri	(	nfc_ndef_record_h	record,
		char **	uri
	)

Gets URI from uri record.

Since :: 2.3

Remarks:: The function returns newly allocated string, this value must be deallocated by caller.
This function is valid only for uri type record. The uri type record 's tnf is NFC_RECORD_TNF_WELL_KNOWN and it's type is "U"

Parameters:

[in]	record	The handle to record
[out]	uri	The uri in record payload ( should be freed by caller )

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter
NFC_ERROR_INVALID_RECORD_TYPE	Invalid record type

See also:: nfc_ndef_record_create_uri(); nfc_manager_initialize()

int nfc_ndef_record_set_id	(	nfc_ndef_record_h	record,
		unsigned char *	id,
		int	id_size
	)

Sets record ID.

Since :: 2.3

Remarks:: The ID buffer are deep copied.

Parameters:

[in]	record	The handle to record
[in]	id	The record ID
[in]	id_size	The size of ID in bytes

Returns:: 0 on success, otherwise a negative error value.

Return values:

NFC_ERROR_NONE	Successful
NFC_ERROR_NOT_SUPPORTED	Not supported NFC
NFC_ERROR_NOT_INITIALIZED	Not initialized NFC
NFC_ERROR_INVALID_PARAMETER	Invalid parameter