/* These functions return -1 if there wasn't enough space in output.
 * LZDecompress can also return -1 if the input data was malformed,
 * Returns the number of bytes written to output on success. */

int uxn_lz_compress(void *output, int output_size, const void *input, int input_size);
int uxn_lz_expand(void *output, int output_size, const void *input, int input_size);

struct uxn_lz_expand_t {
	unsigned char *next_in, *next_out;
	int avail_in, avail_out;

	int dict_len, copy_num, state;
	unsigned char dict_read_pos, dict_write_pos, dict[256];
};

int uxn_lz_expand_stream(struct uxn_lz_expand_t *a);

#define UXN_CHECKSUM_SEED 0x1234ABCD

unsigned int uxn_checksum(unsigned int seed, void *bytes, unsigned int bytes_size);