---
name: "X509_NAME_get0_der"
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_get0_der"
---

# X509\_NAME\_get0\_der(3ssl)

get X509\_NAME DER encoding

## NAME

X509\_NAME\_get0\_der - get X509\_NAME DER encoding

## SYNOPSIS

```
 #include <openssl/x509.h>
 int X509_NAME_get0_der(const X509_NAME *nm, const unsigned char **pder,
                        size_t *pderlen);
```

## DESCRIPTION

The function **X509\_NAME\_get0\_der()** returns an internal pointer to the encoding of an **X509\_NAME** structure in **\*pder** and consisting of **\*pderlen** bytes. It is useful for applications that wish to examine the encoding of an **X509\_NAME** structure without copying it.

## RETURN VALUES

The function **X509\_NAME\_get0\_der()** returns 1 for success and 0 if an error occurred.

## SEE ALSO

**d2i\_X509**(3)

## COPYRIGHT

Copyright 2002-2020 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\>.