lwm2m: Accessing uninitialized local variables

[szsam]

contiki-ng/os/services/lwm2m/lwm2m-engine.c

Lines 1599 to 1602 in 3895760

	if(coap_is_option(request, COAP_OPTION_BLOCK1)) {
	LOG_DBG("Setting BLOCK 1 num:%"PRIu32" o2:%"PRIu32" o:%"PRId32"\n", bnum, boffset,
	(offset != NULL ? *offset : 0));
	coap_set_header_block1(response, bnum, 0, bsize);

bnum and bsize are uninitialized in line 1602 if the condition (offset != NULL && *offset == 0) does not hold:

contiki-ng/os/services/lwm2m/lwm2m-engine.c

Lines 1559 to 1562 in 3895760

	/* PUT/POST - e.g. write will not send in offset here - Maybe in the future? */
	if((offset != NULL && *offset == 0) &&
	coap_is_option(request, COAP_OPTION_BLOCK1)) {
	coap_get_header_block1(request, &bnum, &bmore, &bsize, &boffset);