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net/nanocoap: add inline function for Content-Format

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This commit is contained in:
Ken Bannister 2019-01-27 08:08:25 -05:00
parent bdd2d52fd5
commit a6b49a178d
1 changed files with 17 additions and 0 deletions
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17
sys/include/net/nanocoap.h
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@ -639,6 +639,23 @@ ssize_t coap_opt_add_string(coap_pkt_t *pkt, uint16_t optnum, const char *string
*/
ssize_t coap_opt_add_uint(coap_pkt_t *pkt, uint16_t optnum, uint32_t value);
/**
* @brief Append a Content-Format option to the pkt buffer
*
* @post pkt.payload advanced to first byte after option
* @post pkt.payload_len reduced by option length
*
* @param[in,out] pkt pkt referencing target buffer
* @param[in] format COAP_FORMAT_xxx to use
*
* @return number of bytes written to buffer
* @return <0 reserved for error but not implemented yet
*/
static inline ssize_t coap_opt_add_format(coap_pkt_t *pkt, uint16_t format)
{
return coap_opt_add_uint(pkt, COAP_OPT_CONTENT_FORMAT, format);
}
/**
* @brief Finalizes options as required and prepares for payload
*