i64 runzip_fd(rzip_control *control, int fd_in, int fd_out, int fd_hist, i64 expected_size)
{
	uchar md5_stored[MD5_DIGEST_SIZE];
	struct timeval start,end;
	i64 total = 0, u;
	double tdiff;

	if (!NO_MD5)
		md5_init_ctx (&control->ctx);
	gettimeofday(&start,NULL);

	do {
		u = runzip_chunk(control, fd_in, expected_size, total);
		if (u < 1) {
			if (u < 0 || total < expected_size) {
				print_err("Failed to runzip_chunk in runzip_fd\n");
				return -1;
			}
		}
		total += u;
		if (TMP_OUTBUF) {
			if (unlikely(!flush_tmpoutbuf(control))) {
				print_err("Failed to flush_tmpoutbuf in runzip_fd\n");
				return -1;
			}
		} else if (STDOUT) {
			if (unlikely(!dump_tmpoutfile(control, fd_out))) {
				print_err("Failed to dump_tmpoutfile in runzip_fd\n");
				return -1;
			}
		}
		if (TMP_INBUF)
			clear_tmpinbuf(control);
		else if (STDIN && !DECOMPRESS) {
			if (unlikely(!clear_tmpinfile(control))) {
				print_err("Failed to clear_tmpinfile in runzip_fd\n");
				return -1;
			}
		}
	} while (total < expected_size || (!expected_size && !control->eof));

	gettimeofday(&end,NULL);
	if (!ENCRYPT) {
		tdiff = end.tv_sec - start.tv_sec;
		if (!tdiff)
			tdiff = 1;
		print_progress("\nAverage DeCompression Speed: %6.3fMB/s\n",
			       (total / 1024 / 1024) / tdiff);
	}

	if (!NO_MD5) {
		int i,j;

		md5_finish_ctx (&control->ctx, control->md5_resblock);
		if (HAS_MD5) {
			i64 fdinend = seekto_fdinend(control);

			if (unlikely(fdinend == -1))
				failure_return(("Failed to seekto_fdinend in rzip_fd\n"), -1);
			if (unlikely(seekto_fdin(control, fdinend - MD5_DIGEST_SIZE) == -1))
				failure_return(("Failed to seekto_fdin in rzip_fd\n"), -1);

			if (unlikely(read_1g(control, fd_in, md5_stored, MD5_DIGEST_SIZE) != MD5_DIGEST_SIZE))
				fatal_return(("Failed to read md5 data in runzip_fd\n"), -1);
			if (ENCRYPT)
				if (unlikely(!lrz_decrypt(control, md5_stored, MD5_DIGEST_SIZE, control->salt_pass)))
					return -1;
			for (i = 0; i < MD5_DIGEST_SIZE; i++)
				if (md5_stored[i] != control->md5_resblock[i]) {
					print_output("MD5 CHECK FAILED.\nStored:");
					for (j = 0; j < MD5_DIGEST_SIZE; j++)
						print_output("%02x", md5_stored[j] & 0xFF);
					print_output("\nOutput file:");
					for (j = 0; j < MD5_DIGEST_SIZE; j++)
						print_output("%02x", control->md5_resblock[j] & 0xFF);
					failure_return(("\n"), -1);
				}
		}

		if (HASH_CHECK || MAX_VERBOSE) {
			print_output("MD5: ");
			for (i = 0; i < MD5_DIGEST_SIZE; i++)
				print_output("%02x", control->md5_resblock[i] & 0xFF);
			print_output("\n");
		}

		if (CHECK_FILE) {
			FILE *md5_fstream;
			int i, j;

			if (TMP_OUTBUF)
				close_tmpoutbuf(control);
			memcpy(md5_stored, control->md5_resblock, MD5_DIGEST_SIZE);
			if (unlikely(seekto_fdhist(control, 0) == -1))
				fatal_return(("Failed to seekto_fdhist in runzip_fd\n"), -1);
			if (unlikely((md5_fstream = fdopen(fd_hist, "r")) == NULL))
				fatal_return(("Failed to fdopen fd_hist in runzip_fd\n"), -1);
			if (unlikely(md5_stream(md5_fstream, control->md5_resblock)))
				fatal_return(("Failed to md5_stream in runzip_fd\n"), -1);
			/* We don't close the file here as it's closed in main */
			for (i = 0; i < MD5_DIGEST_SIZE; i++)
				if (md5_stored[i] != control->md5_resblock[i]) {
					print_output("MD5 CHECK FAILED.\nStored:");
					for (j = 0; j < MD5_DIGEST_SIZE; j++)
						print_output("%02x", md5_stored[j] & 0xFF);
					print_output("\nOutput file:");
					for (j = 0; j < MD5_DIGEST_SIZE; j++)
						print_output("%02x", control->md5_resblock[j] & 0xFF);
					failure_return(("\n"), -1);
				}
			print_output("MD5 integrity of written file matches archive\n");
			if (!HAS_MD5)
				print_output("Note this lrzip archive did not have a stored md5 value.\n"
				"The archive decompression was validated with crc32 and the md5 hash was "
				"calculated on decompression\n");
		}
	}

	return total;
}