// This is called with CUR_CHAR() before first hex digit, and should return with
// it pointing to last hex digit
STATIC bool get_hex(mp_lexer_t *lex, int num_digits, uint *result) {
uint num = 0;
while (num_digits-- != 0) {
next_char(lex);
unichar c = CUR_CHAR(lex);
if (!unichar_isxdigit(c)) {
return false;
}
num = (num << 4) + hex_digit(c);
}
*result = num;
return true;
}
// This is called with CUR_CHAR() before first hex digit, and should return with
// it pointing to last hex digit
// num_digits must be greater than zero
STATIC bool get_hex(mp_lexer_t *lex, size_t num_digits, mp_uint_t *result) {
mp_uint_t num = 0;
while (num_digits-- != 0) {
next_char(lex);
unichar c = CUR_CHAR(lex);
if (!unichar_isxdigit(c)) {
return false;
}
num = (num << 4) + unichar_xdigit_value(c);
}
*result = num;
return true;
}
STATIC void wlan_validate_security (uint8_t auth, const char *key, uint8_t len) {
if (auth != SL_SEC_TYPE_WEP && auth != SL_SEC_TYPE_WPA_WPA2) {
goto invalid_args;
}
if (auth == SL_SEC_TYPE_WEP) {
for (mp_uint_t i = strlen(key); i > 0; i--) {
if (!unichar_isxdigit(*key++)) {
goto invalid_args;
}
}
}
return;
invalid_args:
mp_raise_ValueError(mpexception_value_invalid_arguments);
}
