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Add function to return internal enoding of X509_NAME.

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PR#4280

Reviewed-by: Tim Hudson <tjh@openssl.org>
This commit is contained in:
Dr. Stephen Henson 2016-01-30 02:51:01 +00:00
parent 33254e1c6f
commit 7ab507495b
4 changed files with 38 additions and 7 deletions
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13
crypto/x509/x_name.c
View file

@ -567,3 +567,16 @@ int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
OPENSSL_free(b);
return 0;
}
int X509_NAME_get0_der(const unsigned char **pder, size_t *pderlen,
X509_NAME *nm)
{
/* Make sure encoding is valid */
if (i2d_X509_NAME(nm, NULL) <= 0)
return 0;
if (pder != NULL)
*pder = (unsigned char *)nm->bytes->data;
if (pderlen != NULL)
*pderlen = nm->bytes->length;
return 1;
}

28
doc/crypto/d2i_X509_NAME.pod
View file

@ -11,21 +11,35 @@ d2i_X509_NAME, i2d_X509_NAME - X509_NAME encoding functions
X509_NAME *d2i_X509_NAME(X509_NAME **a, unsigned char **pp, long length);
int i2d_X509_NAME(X509_NAME *a, unsigned char **pp);
int X509_NAME_get0_der(const unsigned char **pder, size_t *pderlen,
X509_NAME *nm)
=head1 DESCRIPTION
These functions decode and encode an B<X509_NAME> structure which is the
same as the B<Name> type defined in RFC2459 (and elsewhere) and used
for example in certificate subject and issuer names.
The functions d2i_X509_NAME() and i2d_X509_NAME() decode and encode an
B<X509_NAME> structure which is the same as the B<Name> type defined in
RFC3280 (and elsewhere) and used for example in certificate subject and
issuer names.
Otherwise the functions behave in a similar way to d2i_X509() and i2d_X509()
described in the L<d2i_X509(3)> manual page.
The function X509_NAME_get0_der() returns an internal pointer to the
encoding of an B<X509_NAME> structure in B<*pder> and consisting of
B<*pderlen> bytes. It is useful for applications that wish to examine
the encoding of an B<X509_NAME> structure without copying it.
=head1 RETURN VALUES
=head1 SEE ALSO
The meanings of the return values of d2i_X509_NAME() and i2d_X509_NAME()
are similar to those for d2i_X509() and i2d_X509().
The function X509_NAME_get0_der() returns 1 for success and 0 if an error
occurred.
L<d2i_X509(3)>
=head1 HISTORY
TBA
=cut

3
include/openssl/x509.h
View file

@ -873,6 +873,9 @@ ASN1_OBJECT *X509_NAME_ENTRY_get_object(X509_NAME_ENTRY *ne);
ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne);
int X509_NAME_ENTRY_set(const X509_NAME_ENTRY *ne);
int X509_NAME_get0_der(const unsigned char **pder, size_t *pderlen,
X509_NAME *nm);
int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x);
int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x,
int nid, int lastpos);

1
util/libeay.num
View file

@ -4765,3 +4765,4 @@ OCSP_resp_get0_produced_at 5159 1_1_0 EXIST::FUNCTION:
TS_STATUS_INFO_get0_failure_info 5160 1_1_0 EXIST::FUNCTION:
TS_STATUS_INFO_get0_text 5161 1_1_0 EXIST::FUNCTION:
CRYPTO_secure_zalloc 5162 1_1_0 EXIST::FUNCTION:
X509_NAME_get0_der 5163 1_1_0 EXIST::FUNCTION: