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- /* 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 */
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