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| author | Dr. Stephen Henson <steve@openssl.org> | 2015-03-15 16:26:04 +0000 |
|---|---|---|
| committer | Dr. Stephen Henson <steve@openssl.org> | 2015-03-24 17:35:58 +0000 |
| commit | 2e430277578d3dd586cd005682a54a59d6158146 (patch) | |
| tree | 4fa3771298d408499873043a3f37f61b2c7746d0 /doc | |
| parent | 7b68c30da01b4eedcd546f81844156646387cacb (diff) | |
| download | openssl-2e430277578d3dd586cd005682a54a59d6158146.zip openssl-2e430277578d3dd586cd005682a54a59d6158146.tar.gz openssl-2e430277578d3dd586cd005682a54a59d6158146.tar.bz2 | |
make ASN1_OBJECT opaque
Reviewed-by: Matt Caswell <matt@openssl.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/crypto/OBJ_nid2obj.pod | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/crypto/OBJ_nid2obj.pod b/doc/crypto/OBJ_nid2obj.pod index 1e45dd4..648204e 100644 --- a/doc/crypto/OBJ_nid2obj.pod +++ b/doc/crypto/OBJ_nid2obj.pod @@ -29,6 +29,9 @@ functions int OBJ_create(const char *oid,const char *sn,const char *ln); void OBJ_cleanup(void); + size_t OBJ_length(const ASN1_OBJECT *obj); + const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj); + =head1 DESCRIPTION The ASN1 object utility functions process ASN1_OBJECT structures which are @@ -70,6 +73,11 @@ OBJ_cleanup() cleans up OpenSSLs internal object table: this should be called before an application exits if any new objects were added using OBJ_create(). +OBJ_length() returns the size of the content octets of B<obj>. + +OBJ_get0_data() returns a pointer to the content octets of B<obj>. +The returned pointer is an internal pointer which B<must not> be freed. + =head1 NOTES Objects in OpenSSL can have a short name, a long name and a numerical @@ -96,6 +104,12 @@ Objects do not need to be in the internal tables to be processed, the functions OBJ_txt2obj() and OBJ_obj2txt() can process the numerical form of an OID. +Some objects are used to reprsent algorithms which do not have a +corresponding ASN.1 OBJECT IDENTIFIER encoding (for example no OID currently +exists for a particular algorithm). As a result they B<cannot> be encoded or +decoded as part of ASN.1 structures. Applications can determine if there +is a corresponding OBJECT IDENTIFIER by checking OBJ_length() is not zero. + =head1 EXAMPLES Create an object for B<commonName>: |