uint8_t* ccder_encode_bool(bool value, const uint8_t *der, uint8_t *der_end)
{
uint8_t value_byte = value;
return ccder_encode_tl(CCDER_BOOLEAN, 1, der,
ccder_encode_body(1, &value_byte, der, der_end));
}
uint8_t* der_encode_string(CFStringRef string, CFErrorRef *error,
const uint8_t *der, uint8_t *der_end)
{
// Obey the NULL allowed rules.
if (!der_end)
return NULL;
const CFIndex str_length = CFStringGetLength(string);
ptrdiff_t der_space = der_end - der;
CFIndex bytes_used = 0;
uint8_t *buffer = der_end - der_space;
CFIndex converted = CFStringGetBytes(string, CFRangeMake(0, str_length), kCFStringEncodingUTF8, 0, false, buffer, der_space, &bytes_used);
if (converted != str_length){
SecCFDERCreateError(kSecDERErrorUnsupportedCFObject, CFSTR("String extraction failed"), NULL, error);
return NULL;
}
return ccder_encode_tl(CCDER_UTF8_STRING, bytes_used, der,
ccder_encode_body(bytes_used, buffer, der, der_end));
}
uint8_t* der_encode_null(CFNullRef boolean __unused, CFErrorRef *error,
const uint8_t *der, uint8_t *der_end)
{
return ccder_encode_tl(CCDER_NULL, 0, der, der_end);
}
static uint8_t *der_encode_SecAsn1Oid(const SecAsn1Oid* secasn_oid, const uint8_t *der, uint8_t *der_end)
{
return ccder_encode_tl(CCDER_OBJECT_IDENTIFIER, secasn_oid->Length, der,
ccder_encode_body(secasn_oid->Length, secasn_oid->Data, der, der_end));
}