| /* Copyright (c) 2014, Google Inc. | |
| * | |
| * Permission to use, copy, modify, and/or distribute this software for any | |
| * purpose with or without fee is hereby granted, provided that the above | |
| * copyright notice and this permission notice appear in all copies. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ | |
| #ifndef OPENSSL_HEADER_BYTESTRING_INTERNAL_H | |
| #define OPENSSL_HEADER_BYTESTRING_INTERNAL_H | |
| #include <openssl/base.h> | |
| #if defined(__cplusplus) | |
| extern "C" { | |
| #endif | |
| /* CBS_asn1_ber_to_der reads a BER element from |in|. If it finds | |
| * indefinite-length elements or constructed strings then it converts the BER | |
| * data to DER and sets |*out| and |*out_length| to describe a malloced buffer | |
| * containing the DER data. Additionally, |*in| will be advanced over the BER | |
| * element. | |
| * | |
| * If it doesn't find any indefinite-length elements or constructed strings then | |
| * it sets |*out| to NULL and |*in| is unmodified. | |
| * | |
| * This function should successfully process any valid BER input, however it | |
| * will not convert all of BER's deviations from DER. BER is ambiguous between | |
| * implicitly-tagged SEQUENCEs of strings and implicitly-tagged constructed | |
| * strings. Implicitly-tagged strings must be parsed with | |
| * |CBS_get_ber_implicitly_tagged_string| instead of |CBS_get_asn1|. The caller | |
| * must also account for BER variations in the contents of a primitive. | |
| * | |
| * It returns one on success and zero otherwise. */ | |
| OPENSSL_EXPORT int CBS_asn1_ber_to_der(CBS *in, uint8_t **out, size_t *out_len); | |
| /* CBS_get_asn1_implicit_string parses a BER string of primitive type | |
| * |inner_tag| implicitly-tagged with |outer_tag|. It sets |out| to the | |
| * contents. If concatenation was needed, it sets |*out_storage| to a buffer | |
| * which the caller must release with |OPENSSL_free|. Otherwise, it sets | |
| * |*out_storage| to NULL. | |
| * | |
| * This function does not parse all of BER. It requires the string be | |
| * definite-length. Constructed strings are allowed, but all children of the | |
| * outermost element must be primitive. The caller should use | |
| * |CBS_asn1_ber_to_der| before running this function. | |
| * | |
| * It returns one on success and zero otherwise. */ | |
| OPENSSL_EXPORT int CBS_get_asn1_implicit_string(CBS *in, CBS *out, | |
| uint8_t **out_storage, | |
| unsigned outer_tag, | |
| unsigned inner_tag); | |
| /* CBB_finish_i2d calls |CBB_finish| on |cbb| which must have been initialized | |
| * with |CBB_init|. If |outp| is not NULL then the result is written to |*outp| | |
| * and |*outp| is advanced just past the output. It returns the number of bytes | |
| * in the result, whether written or not, or a negative value on error. On | |
| * error, it calls |CBB_cleanup| on |cbb|. | |
| * | |
| * This function may be used to help implement legacy i2d ASN.1 functions. */ | |
| int CBB_finish_i2d(CBB *cbb, uint8_t **outp); | |
| #if defined(__cplusplus) | |
| } /* extern C */ | |
| #endif | |
| #endif /* OPENSSL_HEADER_BYTESTRING_INTERNAL_H */ |