gnutls\_x509\_crt\_set\_issuer\_alt\_name(3) gnutls gnutls\_x509\_crt\_set\_issuer\_alt\_name(3)

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_x509\_crt\_set\_issuer\_alt\_name(gnutls\_x509\_crt\_t crt, gnutls\_x509\_subject\_alt\_name\_t type, const void * data, unsigned int data\_size, unsigned int flags);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_x509\_crt\_t crt](#gnutls_x509_crt_t)

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

[gnutls\_x509\_subject\_alt\_name\_t type](#gnutls_x509_subject_alt_name_t)

is one of the gnutls\_x509\_subject\_alt\_name\_t enumerations

[const void * data](#const)

The data to be set

[unsigned int data\_size](#unsigned)

The size of data to be set

[unsigned int flags](#unsigned~2)

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

# [DESCRIPTION](#DESCRIPTION)

This function will set the issuer alternative name certificate extension. It can set the same types as **gnutls\_x509\_crt\_set\_subject\_alt\_name()**.

Since version 3.5.7 the **GNUTLS\_SAN\_RFC822NAME**, **GNUTLS\_SAN\_DNSNAME**, and **GNUTLS\_SAN\_OTHERNAME\_XMPP** are converted to ACE format when necessary.

# [RETURNS](#RETURNS)

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

# [SINCE](#SINCE)

3.3.0

# [REPORTING BUGS](#REPORTING_BUGS)

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

# [COPYRIGHT](#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](#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/](https://www.gnutls.org/manual/)

3.8.13 gnutls

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Document: gnutls_x509_crt_set_issuer_alt_name(3) from gnutls 3.8.13-r1 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls