---
name: "gnutls_x509_crt_get_proxy"
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_get_proxy"
---

# gnutls\_x509\_crt\_get\_proxy(3)

API function

## NAME

gnutls\_x509\_crt\_get\_proxy - API function

## SYNOPSIS

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

**int gnutls\_x509\_crt\_get\_proxy(gnutls\_x509\_crt\_t** *cert***, unsigned int \*** *critical***, int \*** *pathlen***, char \*\*** *policyLanguage***, char \*\*** *policy***, size\_t \*** *sizeof\_policy***);**

## ARGUMENTS

- gnutls\_x509\_crt\_t cert

  should contain a **gnutls\_x509\_crt\_t** type

- unsigned int \* critical

  will be non-zero if the extension is marked as critical

- int \* pathlen

  pointer to output integer indicating path length (may be NULL), non-negative error codes indicate a present pCPathLenConstraint field and the actual value, -1 indicate that the field is absent.

- char \*\* policyLanguage

  output variable with OID of policy language

- char \*\* policy

  output variable with policy data

- size\_t \* sizeof\_policy

  output variable size of policy data

## DESCRIPTION

This function will get information from a proxy certificate.  It reads the ProxyCertInfo X.509 extension (1.3.6.1.5.5.7.1.14).

## RETURNS

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

## 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/