gnutls\_x509\_name\_constraints\_get\_excluded(3) gnutls gnutls\_x509\_name\_constraints\_get\_excluded(3)

# [NAME](#NAME)

gnutls\_x509\_name\_constraints\_get\_excluded - API function

# [SYNOPSIS](#SYNOPSIS)

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

**int gnutls\_x509\_name\_constraints\_get\_excluded(gnutls\_x509\_name\_constraints\_t nc, unsigned idx, unsigned * type, gnutls\_datum\_t * name);**

# [ARGUMENTS](#ARGUMENTS)

[gnutls\_x509\_name\_constraints\_t nc](#gnutls_x509_name_constraints_t)

the extracted name constraints

[unsigned idx](#unsigned)

the index of the constraint

[unsigned * type](#unsigned~2)

the type of the constraint (of type gnutls\_x509\_subject\_alt\_name\_t)

[gnutls\_datum\_t * name](#gnutls_datum_t)

the name in the constraint (of the specific type)

# [DESCRIPTION](#DESCRIPTION)

This function will return an intermediate type containing the name constraints of the provided CA certificate. That structure can be used in combination with **gnutls\_x509\_name\_constraints\_check()** to verify whether a server's name is in accordance with the constraints.

The name should be treated as constant and valid for the lifetime of *nc* .

# [RETURNS](#RETURNS)

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, **GNUTLS\_E\_REQUESTED\_DATA\_NOT\_AVAILABLE** if the extension is not present, 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_name_constraints_get_excluded(3) from gnutls 3.8.13-r3 (Chainguard OS)
Source: https://gitlab.com/gnutls/gnutls