---
name: "X509_NAME_ENTRY_get_object"
section: "3ssl"
platform: "linux"
package: "openssl"
version: "3.6.5-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/X509_NAME_ENTRY_get_object"
---

# X509\_NAME\_ENTRY\_get\_object(3ssl)

X509\_NAME\_ENTRY utility functions

## 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()** 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()** 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()** 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\>.