---
name: "gnutls_x509_crt_set_issuer_alt_othername"
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_x509_crt_set_issuer_alt_othername"
---

# gnutls\_x509\_crt\_set\_issuer\_alt\_othername(3)

API function

## NAME

gnutls\_x509\_crt\_set\_issuer\_alt\_othername - API function

## SYNOPSIS

**#include \<gnutls/x509.h\>**

**int gnutls\_x509\_crt\_set\_issuer\_alt\_othername(gnutls\_x509\_crt\_t** *crt***, const char \*** *oid***, const void \*** *data***, unsigned int** *data\_size***, unsigned int** *flags***);**

## ARGUMENTS

- gnutls\_x509\_crt\_t crt

  a certificate of type **gnutls\_x509\_crt\_t**

- const char \* oid

  The other name OID

- const void \* data

  The data to be set

- unsigned int data\_size

  The size of data to be set

- unsigned int flags

  GNUTLS\_FSAN\_SET to clear previous data or GNUTLS\_FSAN\_APPEND to append.

## DESCRIPTION

This function will set an "othername" to the issuer alternative name certificate extension.

The values set are set as binary values and are expected to have the proper DER encoding. For convenience the flags **GNUTLS\_FSAN\_ENCODE\_OCTET\_STRING** and **GNUTLS\_FSAN\_ENCODE\_UTF8\_STRING** can be used to encode the provided data.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, otherwise a negative error value.

## SINCE

3\.5.0

## 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/