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Diffstat (limited to 'src/crypto/bytestring/internal.h')
-rw-r--r-- | src/crypto/bytestring/internal.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/crypto/bytestring/internal.h b/src/crypto/bytestring/internal.h new file mode 100644 index 0000000..b4ea7e5 --- /dev/null +++ b/src/crypto/bytestring/internal.h @@ -0,0 +1,46 @@ +/* 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 an ASN.1 structure from |in|. If it finds + * indefinite-length elements then it attempts to convert 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 ASN.1 data. + * + * If it doesn't find any indefinite-length elements then it sets |*out| to + * NULL and |*in| is unmodified. + * + * A sufficiently complex ASN.1 structure will break this function because it's + * not possible to generically convert BER to DER without knowledge of the + * structure itself. However, this sufficies to handle the PKCS#7 and #12 output + * from NSS. + * + * 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); + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#endif /* OPENSSL_HEADER_BYTESTRING_INTERNAL_H */ |