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