private void init(
Headers h,
long lastMod,
long fileLength,
String url,
int blocksize,
int[] hashLengths,
String sha1) {
h.version = "jazsync";
h.mTime = lastMod;
h.url = url;
h.length = fileLength;
if (isPowerOfTwo(blocksize)) {
h.blocksize = blocksize;
} else {
throw new IllegalArgumentException("Blocksize must be a power of 2 (512, 1024, 2048, ...)");
}
h.setSeqNum(hashLengths[0]);
h.setRsumBytes(hashLengths[1]);
h.setChecksumBytes(hashLengths[2]);
h.sha1 = sha1;
}
