---
name: "gnutls_pem_base64_decode2"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_pem_base64_decode2"
---

# gnutls\_pem\_base64\_decode2(3)

API function

## NAME

gnutls\_pem\_base64\_decode2 - API function

## SYNOPSIS

**#include \<gnutls/gnutls.h\>**

**int gnutls\_pem\_base64\_decode2(const char \*** *header***, const gnutls\_datum\_t \*** *b64\_data***, gnutls\_datum\_t \*** *result***);**

## ARGUMENTS

- const char \* header

  The PEM header (eg. CERTIFICATE)

- const gnutls\_datum\_t \* b64\_data

  contains the encoded data

- gnutls\_datum\_t \* result

  the location of decoded data

## DESCRIPTION

This function will decode the given encoded data. The decoded data will be allocated, and stored into result.  If the header given is non null this function will search for "-----BEGIN header" and decode only this part. Otherwise it will decode the first PEM packet found.

You should use **gnutls\_free()** to free the returned data.

Note, that prior to GnuTLS 3.4.0 this function was available under the name **gnutls\_pem\_base64\_decode\_alloc()**. There is compatibility macro pointing to this function.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise an error code is returned.

## SINCE

3\.4.0

## REPORTING BUGS

Report bugs to \<bugs@gnutls.org\>.\
 Home page: https://www.gnutls.org

## COPYRIGHT

Copyright © 2001-2023 Free Software Foundation, Inc., and others.\
 Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.

## SEE ALSO

The full documentation for **gnutls** is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit

- https://www.gnutls.org/manual/