linux-sg2042/include/linux/ascii85.h

40 lines
555 B
C

/*
* 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