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/*
* src/helpers.c
* (c) 2022 Jonas Gunz <himself@jonasgunz.de>
* License: All rights reserved.
*/
#include "helpers.h"
uint8_t hex_to_byte(char c[]) {
uint8_t ret = hex_to_halfbyte(c[1]);
ret += 16 * hex_to_halfbyte(c[0]);
return ret;
}
uint8_t hex_to_halfbyte(char c) {
uint8_t ret = 0;
if ( c >= 48 && c <= 57)
ret = c-48;
else if (c >= 65 && c <= 70)
ret = c-55;
else if (c >= 97 && c <= 102)
ret = c-87;
return ret;
}
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