diff options
Diffstat (limited to 'include/openssl/bytestring.h')
| -rw-r--r-- | include/openssl/bytestring.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/openssl/bytestring.h b/include/openssl/bytestring.h index acaba8e..d5e6cf9 100644 --- a/include/openssl/bytestring.h +++ b/include/openssl/bytestring.h @@ -166,6 +166,41 @@ OPENSSL_EXPORT int CBS_get_any_asn1_element(CBS *cbs, CBS *out, * in 64 bits. */ OPENSSL_EXPORT int CBS_get_asn1_uint64(CBS *cbs, uint64_t *out); +/* CBS_get_optional_asn1 gets an optional explicitly-tagged element + * from |cbs| tagged with |tag| and sets |*out| to its contents. If + * present, it sets |*out_present| to one, otherwise zero. It returns + * one on success, whether or not the element was present, and zero on + * decode failure. */ +OPENSSL_EXPORT int CBS_get_optional_asn1(CBS *cbs, CBS *out, int *out_present, + unsigned tag); + +/* CBS_get_optional_asn1_octet_string gets an optional + * explicitly-tagged OCTET STRING from |cbs|. If present, it sets + * |*out| to the string and |*out_present| to one. Otherwise, it sets + * |*out| to empty and |*out_present| to zero. |out_present| may be + * NULL. It returns one on success, whether or not the element was + * present, and zero on decode failure. */ +OPENSSL_EXPORT int CBS_get_optional_asn1_octet_string(CBS *cbs, CBS *out, + int *out_present, + unsigned tag); + +/* CBS_get_optional_asn1_uint64 gets an optional explicitly-tagged + * INTEGER from |cbs|. If present, it sets |*out| to the + * value. Otherwise, it sets |*out| to |default_value|. It returns one + * on success, whether or not the element was present, and zero on + * decode failure. */ +OPENSSL_EXPORT int CBS_get_optional_asn1_uint64(CBS *cbs, uint64_t *out, + unsigned tag, + uint64_t default_value); + +/* CBS_get_optional_asn1_bool gets an optional, explicitly-tagged BOOLEAN from + * |cbs|. If present, it sets |*out| to either zero or one, based on the + * boolean. Otherwise, it sets |*out| to |default_value|. It returns one on + * success, whether or not the element was present, and zero on decode + * failure. */ +OPENSSL_EXPORT int CBS_get_optional_asn1_bool(CBS *cbs, int *out, unsigned tag, + int default_value); + /* CRYPTO ByteBuilder. * @@ -277,6 +312,10 @@ OPENSSL_EXPORT int CBB_add_u16(CBB *cbb, uint16_t value); * returns one on success and zero otherwise. */ OPENSSL_EXPORT int CBB_add_u24(CBB *cbb, uint32_t value); +/* CBB_add_asn1_uint64 writes an ASN.1 INTEGER into |cbb| using |CBB_add_asn1| + * and writes |value| in its contents. It returns one on success and zero on + * error. */ +OPENSSL_EXPORT int CBB_add_asn1_uint64(CBB *cbb, uint64_t value); #if defined(__cplusplus) } /* extern C */ |