X509_NAME_ENTRY_GET_OBJECT(3ossl) OpenSSL X509_NAME_ENTRY_GET_OBJECT(3ossl)
NAME
X509_NAME_ENTRY_get_object, X509_NAME_ENTRY_get_data,
X509_NAME_ENTRY_set_object, X509_NAME_ENTRY_set_data,
X509_NAME_ENTRY_create_by_txt, X509_NAME_ENTRY_create_by_NID,
X509_NAME_ENTRY_create_by_OBJ - X509_NAME_ENTRY utility functions
SYNOPSIS
#include <openssl/x509.h>
ASN1_OBJECT *X509_NAME_ENTRY_get_object(const X509_NAME_ENTRY *ne);
ASN1_STRING *X509_NAME_ENTRY_get_data(const X509_NAME_ENTRY *ne);
int X509_NAME_ENTRY_set_object(X509_NAME_ENTRY *ne, const ASN1_OBJECT *obj);
int X509_NAME_ENTRY_set_data(X509_NAME_ENTRY *ne, int type,
const unsigned char *bytes, int len);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_txt(X509_NAME_ENTRY **ne, const char *field,
int type, const unsigned char *bytes,
int len);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_NID(X509_NAME_ENTRY **ne, int nid,
int type, const unsigned char *bytes,
int len);
X509_NAME_ENTRY *X509_NAME_ENTRY_create_by_OBJ(X509_NAME_ENTRY **ne,
const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len);
DESCRIPTION
X509_NAME_ENTRY_get_object(3) retrieves the field name of ne in an
ASN1_OBJECT structure.
X509_NAME_ENTRY_get_data() retrieves the field value of ne in an
ASN1_STRING structure.
X509_NAME_ENTRY_set_object() sets the field name of ne to obj.
X509_NAME_ENTRY_set_data() sets the field value of ne to string type type
and value determined by bytes and len.
X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_NID() and
X509_NAME_ENTRY_create_by_OBJ() create and return an X509_NAME_ENTRY
structure.
NOTES
X509_NAME_ENTRY_get_object(3) and X509_NAME_ENTRY_get_data() can be used
to examine an X509_NAME_ENTRY function as returned by
X509_NAME_get_entry() for example.
X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_OBJ(),
X509_NAME_ENTRY_create_by_NID() and X509_NAME_ENTRY_set_data() are seldom
used in practice because X509_NAME_ENTRY structures are almost always
part of X509_NAME structures and the corresponding X509_NAME functions
are typically used to create and add new entries in a single operation.
The arguments of these functions support similar options to the similarly
named ones of the corresponding X509_NAME functions such as
X509_NAME_add_entry_by_txt(). So for example type can be set to
MBSTRING_ASC but in the case of X509_set_data() the field name must be
set first so the relevant field information can be looked up internally.
RETURN VALUES
X509_NAME_ENTRY_get_object(3) returns an internal pointer to a valid
ASN1_OBJECT structure if it is set, or NULL if an error occurred.
X509_NAME_ENTRY_get_data() returns an internal pointer to a valid
ASN1_STRING structure if it is set, or NULL if an error occurred.
X509_NAME_ENTRY_set_object() and X509_NAME_ENTRY_set_data() return 1 on
success or 0 on error.
X509_NAME_ENTRY_create_by_txt(), X509_NAME_ENTRY_create_by_NID() and
X509_NAME_ENTRY_create_by_OBJ() return a valid X509_NAME_ENTRY on success
or NULL if an error occurred.
SEE ALSO
ERR_get_error(3), d2i_X509_NAME(3), OBJ_nid2obj(3)
COPYRIGHT
Copyright 2002-2026 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
<https://www.openssl.org/source/license.html>.
3.6.5 2026-09-29 X509_NAME_ENTRY_GET_OBJECT(3ossl)
openssl 3.6.5 - Generated Sat Oct 3 09:01:17 CDT 2026