Function gnunet_sys::GNUNET_DNSPARSER_hex_to_bin

pub unsafe extern "C" fn GNUNET_DNSPARSER_hex_to_bin(
    hex: *const c_char, 
    data: *mut c_void
) -> usize

Convert a HEX string to block of binary data.

@param hex HEX string to convert (may contain mixed case) @param data where to write result, must be at least strlen(hex)/2 bytes long @return number of bytes written to data