diff options
| -rw-r--r-- | include/ndef.h | 3 | ||||
| -rw-r--r-- | src/ndef.c | 57 |
2 files changed, 60 insertions, 0 deletions
diff --git a/include/ndef.h b/include/ndef.h index 559879d..0cbe47b 100644 --- a/include/ndef.h +++ b/include/ndef.h @@ -37,4 +37,7 @@ int near_ndef_parse(struct near_tag *tag, uint8_t *ndef_data, size_t ndef_length struct near_ndef_message *near_ndef_prepare_text_record(char *encoding, char *language_code, char *text); +struct near_ndef_message *near_ndef_prepare_uri_record(uint8_t identifier, + uint32_t field_length, uint8_t *field); + #endif @@ -1282,6 +1282,63 @@ fail: return NULL; } +/** + * @brief Prepare URI ndef record + * + * Prepare uri ndef record with provided input data and return + * ndef message structure (length and byte stream) in success or + * NULL in failure case. + * + * @note : caller responsibility to free the input and output + * parameters memory. + * + * @param[in] identifier URI Identifier + * @param[in] field_length URI field length + * @param[in] field URI field + * + * @return struct near_ndef_message * - Success + * NULL - Failure + */ +struct near_ndef_message *near_ndef_prepare_uri_record(uint8_t identifier, + uint32_t field_length, uint8_t *field) +{ + struct near_ndef_message *msg = NULL; + uint32_t payload_length; + + DBG(""); + + /* Validate input parameters*/ + if ((field_length == 0 && field != NULL) || + (field_length != 0 && field == NULL)) { + return NULL; + } + + payload_length = field_length + 1; + + msg = ndef_message_alloc("U", payload_length); + if (msg == NULL) + return NULL; + + msg->data[msg->offset++] = identifier; + + if (field_length > 0) { + memcpy(msg->data + msg->offset, field, field_length); + msg->offset += field_length; + } + + if (msg->offset > msg->length) + goto fail; + + return msg; + +fail: + near_error("uri record preparation failed"); + g_free(msg->data); + g_free(msg); + + return NULL; +} + int __near_ndef_init(void) { DBG(""); |