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/* Copyright (c) 2005-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "hex-dec.h"
void dec2hex(unsigned char *hexstr, uintmax_t dec, unsigned int hexstr_size)
{
unsigned int i;
for (i = 0; i < hexstr_size; i++) {
unsigned int value = dec & 0x0f;
if (value < 10)
hexstr[hexstr_size-i-1] = value + '0';
else
hexstr[hexstr_size-i-1] = value - 10 + 'A';
dec >>= 4;
}
}
uintmax_t hex2dec(const unsigned char *data, unsigned int len)
{
unsigned int i;
uintmax_t value = 0;
for (i = 0; i < len; i++) {
value = value*0x10;
if (data[i] >= '0' && data[i] <= '9')
value += data[i]-'0';
else if (data[i] >= 'A' && data[i] <= 'F')
value += data[i]-'A' + 10;
else if (data[i] >= 'a' && data[i] <= 'f')
value += data[i]-'a' + 10;
else
return 0;
}
return value;
}
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