123456789101112131415161718192021222324252627282930313233343536373839 |
- /*
- * SPDX-License-Identifier: GPL-2.0
- *
- * Copyright (c) 2008 Intel Corporation
- * Copyright (c) 2018 The Linux Foundation. All rights reserved.
- */
- #ifndef _ASCII85_H_
- #define _ASCII85_H_
- #include <linux/math.h>
- #include <linux/types.h>
- #define ASCII85_BUFSZ 6
- static inline long
- ascii85_encode_len(long len)
- {
- return DIV_ROUND_UP(len, 4);
- }
- static inline const char *
- ascii85_encode(u32 in, char *out)
- {
- int i;
- if (in == 0)
- return "z";
- out[5] = '\0';
- for (i = 5; i--; ) {
- out[i] = '!' + in % 85;
- in /= 85;
- }
- return out;
- }
- #endif
|