39 lines · 555 B · C
RawDownload
/* * 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 longascii85_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