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/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#include <coap.h>
#include <string.h>
#define MAX_RESPONSE_LEN 500
static uint8_t response[MAX_RESPONSE_LEN] = { 0 };
static int handle_get_well_known_core(coap_rw_buffer_t *scratch,
const coap_packet_t *inpkt,
coap_packet_t *outpkt,
uint8_t id_hi, uint8_t id_lo);
static int handle_get_riot_board(coap_rw_buffer_t *scratch,
const coap_packet_t *inpkt,
coap_packet_t *outpkt,
uint8_t id_hi, uint8_t id_lo);
static const coap_endpoint_path_t path_well_known_core =
{ 2, { ".well-known", "core" } };
static const coap_endpoint_path_t path_riot_board =
{ 2, { "riot", "board" } };
const coap_endpoint_t endpoints[] =
{
{ COAP_METHOD_GET, handle_get_well_known_core,
&path_well_known_core, "ct=40" },
{ COAP_METHOD_GET, handle_get_riot_board,
&path_riot_board, "ct=0" },
/* marks the end of the endpoints array: */
{ (coap_method_t)0, NULL, NULL, NULL }
};
static int handle_get_well_known_core(coap_rw_buffer_t *scratch,
const coap_packet_t *inpkt, coap_packet_t *outpkt,
uint8_t id_hi, uint8_t id_lo)
{
char *rsp = (char *)response;
/* resetting the content of response message */
memset(response, 0, sizeof(response));
int len = sizeof(response);
const coap_endpoint_t *ep = endpoints;
int i;
len--; // Null-terminated string
while (NULL != ep->handler) {
if (NULL == ep->core_attr) {
ep++;
continue;
}
if (0 < strlen(rsp)) {
strncat(rsp, ",", len);
len--;
}
strncat(rsp, "<", len);
len--;
for (i = 0; i < ep->path->count; i++) {
strncat(rsp, "/", len);
len--;
strncat(rsp, ep->path->elems[i], len);
len -= strlen(ep->path->elems[i]);
}
strncat(rsp, ">;", len);
len -= 2;
strncat(rsp, ep->core_attr, len);
len -= strlen(ep->core_attr);
ep++;
}
return coap_make_response(scratch, outpkt, (const uint8_t *)rsp,
strlen(rsp), id_hi, id_lo, &inpkt->tok,
COAP_RSPCODE_CONTENT,
COAP_CONTENTTYPE_APPLICATION_LINKFORMAT);
}
static int handle_get_riot_board(coap_rw_buffer_t *scratch,
const coap_packet_t *inpkt, coap_packet_t *outpkt,
uint8_t id_hi, uint8_t id_lo)
{
const char *riot_name = RIOT_BOARD;
int len = strlen(RIOT_BOARD);
memcpy(response, riot_name, len);
return coap_make_response(scratch, outpkt, (const uint8_t *)response, len,
id_hi, id_lo, &inpkt->tok, COAP_RSPCODE_CONTENT,
COAP_CONTENTTYPE_TEXT_PLAIN);
}
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