static void tiger_tree_fd(OS_FD fd, OFF_T len, OFF_T pos, OFF_T block_size, char *digest)
{
static char tiger_buffer[BLOCK_SIZE+1];
if(block_size == BLOCK_SIZE){
OFF_T length = (len - pos > BLOCK_SIZE) ? BLOCK_SIZE : len - pos;
char *s = tiger_buffer+1;
size_t toread = length;
char *curs = s;
while (toread!=0){
int max_nread = toread;
/* HASH_BUFFER_LEN > toread ? toread : HASH_BUFFER_LEN; */
ssize_t nread = os_read (fd, curs, max_nread);
if(nread <= 0) {
unix_error(errno, "tiger_safe_fd: Read", Nothing);
}
curs += nread;
toread -= nread;
}
tiger_hash(0, s, length, digest);
} else {
if(pos+block_size/2 >=len){
tiger_tree_fd(fd, len, pos, block_size/2, digest);
} else {
char digests_prefixed[1+DIGEST_LEN * 2];
char *digests = digests_prefixed+1;
tiger_tree_fd(fd, len, pos, block_size/2, digests);
tiger_tree_fd(fd, len, pos+block_size/2, block_size/2, digests+DIGEST_LEN);
tiger_hash(1,digests, 2*DIGEST_LEN, digest);
}
}
}
char *cube2crypto_hashstring(char *string)
{
char *result = (char *)malloc(49);
union hashval hv;
tiger_hash((uchar *)string, strlen(string), &hv);
int i;
for(i = 0; i < sizeof(hv.bytes); i++)
{
uchar c = hv.bytes[i];
*(result+(i*2)) = "0123456789ABCDEF"[c&0xF];
*(result+(i*2)+1) = "0123456789ABCDEF"[c>>4];
}
*(result+(i*2)+2) = '\0';
return result;
}