firestring_hextoi(3)
return a numerical value for a 2 digit hex string
SYNOPSIS
#include <firestring.h>
-lfirestring
int firestring_hextoi(char *input)
DESCRIPTION
firestring_hextoi takes a string
s
with the first two characters as hex digits and converts
the value to a integer.
RETURN VALUE
Returns the hex value between 0 and 255 (inclusive), or -1
if the first two characters of
s
are not valid hex digits.