---
name: "gnutls_pkcs11_obj_get_info"
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_pkcs11_obj_get_info"
---

# gnutls\_pkcs11\_obj\_get\_info(3)

API function

## NAME

gnutls\_pkcs11\_obj\_get\_info - API function

## SYNOPSIS

**#include \<gnutls/pkcs11.h\>**

**int gnutls\_pkcs11\_obj\_get\_info(gnutls\_pkcs11\_obj\_t** *obj***, gnutls\_pkcs11\_obj\_info\_t** *itype***, void \*** *output***, size\_t \*** *output\_size***);**

## ARGUMENTS

- gnutls\_pkcs11\_obj\_t obj

  should contain a **gnutls\_pkcs11\_obj\_t** type

- gnutls\_pkcs11\_obj\_info\_t itype

  Denotes the type of information requested

- void \* output

  where output will be stored

- size\_t \* output\_size

  contains the maximum size of the output buffer and will be overwritten with the actual size.

## DESCRIPTION

This function will return information about the PKCS11 certificate such as the label, id as well as token information where the key is stored.

When output is text, a null terminated string is written to  *output* and its string length is written to  *output\_size* (without null terminator). If the buffer is too small,  *output\_size* will contain the expected buffer size (with null terminator for text) and return **GNUTLS\_E\_SHORT\_MEMORY\_BUFFER**.

In versions previously to 3.6.0 this function included the null terminator to  *output\_size* . After 3.6.0 the output size doesn't include the terminator character.

## RETURNS

**GNUTLS\_E\_SUCCESS** (0) on success or a negative error code on error.

## SINCE

2\.12.0

## 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/