get.c

#include <stdio.h>
#include <sol-coap.h>
#include <sol-oic-client.h>
#include <sol-mainloop.h>

struct sol_oic_client client;

static bool no_payload(void *data, struct sol_oic_map_writer *map) {
	return true;
}

static void receive_callback(
		sol_coap_responsecode_t response_code,
		struct sol_oic_client *cli,
		const struct sol_network_link_addr *addr,
		const struct sol_oic_map_reader *repr_vec,
		void *data) {
	printf("GET request has returned\n");
}

static bool resource_found(
		struct sol_oic_client *cli,
		struct sol_oic_resource *res,
		void *data) {
	if (!strncmp(res->href.data, sol_argv()[1], res->href.len)) {
		printf( "sol_oic_client_resource_request(): %s\n",
			sol_oic_client_resource_request(cli, res, SOL_COAP_METHOD_GET,
				no_payload, NULL, receive_callback, NULL) ? "true" : "false" );
		return false;
	}
	return true;
}

void startup() {
#ifdef SOL_OIC_CLIENT_API_VERSION
	client.api_version = SOL_OIC_CLIENT_API_VERSION;
#endif /* def SOL_OIC_CLIENT_API_VERSION */
	client.server = sol_coap_server_new(0);
	client.dtls_server = NULL;

	struct sol_network_link_addr addr;
	addr.family = SOL_NETWORK_FAMILY_INET;
	addr.port = 5683;
	sol_network_addr_from_str(&addr, "224.0.1.187");

	printf( "sol_oic_client_find_resource(): %s\n",
		sol_oic_client_find_resource(&client, &addr, "", resource_found,
			NULL) ? "true" : "false" );
}

void shutdown() {}

SOL_MAIN_DEFAULT(startup, shutdown);

output from ocserverbasicops

06:00.682 DEBUG: IP_ADAP: IN
06:00.682 DEBUG: IP_ADAP: Address: 192.168.1.45, port:45204
06:00.682 DEBUG: CA_INTRFC_CNTRLR: IN
06:00.682 DEBUG: CA_MSG_HNDLR: received pdu data :
06:00.682 DEBUG: CA_MSG_HNDLR: 48 01 98 A4 CF 58 4D CD 22 B0 62 32 B1 61 0D 05 
06:00.682 DEBUG: CA_MSG_HNDLR: 68 69 67 68 2D 6C 65 76 65 6C 2D 65 78 61 6D 70 
06:00.682 DEBUG: CA_MSG_HNDLR: 6C 65 11 3C FF 
06:00.682 DEBUG: CA_PRTCL_MSG: pdu parse-transport type : 0
06:00.682 DEBUG: CA_PRTCL_MSG: pdu parse ret: 0
06:00.682 ERROR: CA_PRTCL_MSG: pdu parse failed
06:00.682 ERROR: CA_MSG_HNDLR: Parse PDU failed
06:00.682 DEBUG: CA_INTRFC_CNTRLR: OUT
06:00.682 DEBUG: IP_ADAP: OUT