+
+/*
+ * zlib compression.
+ */
+void zlib_compress_init(void);
+void zlib_decompress_init(void);
+int zlib_compress_block(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);
+int zlib_decompress_block(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);