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fix: response failed when set a large response data

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set the last parameter of `coap_pdu_init`, from size to COAP_MAX_PDU_SIZE
refer to https://github.com/obgm/libcoap.git/examples/contiki/coap-observer.c settings -> COAP_DEFAULT_MTU

close https://ezredmine.espressif.cn:8765/issues/23207
This commit is contained in:
chenwu
2018-06-26 16:48:30 +08:00
parent a698035fa9
commit 152a060425
1 changed files with 1 additions and 2 deletions
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3
examples/protocols/coap_server/main/coap_server_example_main.c
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@@ -51,8 +51,7 @@ send_async_response(coap_context_t *ctx, const coap_endpoint_t *local_if)
coap_pdu_t *response; coap_pdu_t *response;
unsigned char buf[3]; unsigned char buf[3];
const char* response_data = "Hello World!"; const char* response_data = "Hello World!";
size_t size = sizeof(coap_hdr_t) + 20; response = coap_pdu_init(async->flags & COAP_MESSAGE_CON, COAP_RESPONSE_CODE(205), 0, COAP_MAX_PDU_SIZE);
response = coap_pdu_init(async->flags & COAP_MESSAGE_CON, COAP_RESPONSE_CODE(205), 0, size);
response->hdr->id = coap_new_message_id(ctx); response->hdr->id = coap_new_message_id(ctx);
if (async->tokenlen) if (async->tokenlen)
coap_add_token(response, async->tokenlen, async->token); coap_add_token(response, async->tokenlen, async->token);