Function decode_short_ids

common/decode_array.c:7–43

#include <wire/peer_wire.h>

struct short_channel_id *decode_short_ids(const tal_t *ctx, const u8 *encoded)
{
	struct short_channel_id *scids;
	size_t max = tal_count(encoded);
	enum arr_encode_types type;

	/* BOLT #7:
	 *
	 * The receiver:
	 *   - if the first byte of `encoded_short_ids` is not a known encoding
	 *     type:
	 *     - MAY send a `warning`.
	 *     - MAY close the connection.
	 *   - if `encoded_short_ids` does not decode into a whole number of
	 *     `short_channel_id`:
	 *     - MAY send a `warning`.
	 *     - MAY close the connection.
	 */
	type = fromwire_u8(&encoded, &max);
	switch (type) {
	case ARR_ZLIB_DEPRECATED:
		return NULL;
	case ARR_UNCOMPRESSED:
		scids = tal_arr(ctx, struct short_channel_id, 0);
		while (max) {
			struct short_channel_id scid;
			scid = fromwire_short_channel_id(&encoded, &max);
			tal_arr_expand(&scids, scid);
		}

		/* encoded is set to NULL if we ran over */
		if (!encoded)
			return tal_free(scids);
		return scids;
	}
	return NULL;
}

bigsize_t *decode_scid_query_flags(const tal_t *ctx,
				   const struct tlv_query_short_channel_ids_tlvs_query_flags *qf)