gnutls_x509_crt_get_key_purpose_oid

gnutls_x509_crt_get_key_purpose_oid(3gnutlgnutls_x509_crt_get_key_purpose_oid(3)



NAME
       gnutls_x509_crt_get_key_purpose_oid - API function

SYNOPSIS
       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_key_purpose_oid(gnutls_x509_crt_t cert, unsigned
       indx, void * oid, size_t * oid_size, unsigned int * critical);

ARGUMENTS
       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       unsigned indx
                   This specifies which OID to return. Use (0) to get the first
                   one.

       void * oid  a pointer to a buffer to hold the OID (may be null)

       size_t * oid_size
                   initially holds the size of  oid

       unsigned int * critical
                   output flag to indicate criticality of extension

DESCRIPTION
       This function will extract the key purpose OIDs of the Certificate
       specified by the given index.  These are stored in the Extended Key Usage
       extension (2.5.29.37) See the GNUTLS_KP_* definitions for human readable
       names.

       If  oid is null then only the size will be filled. The  oid returned will
       be null terminated, although  oid_size will not account for the trailing
       null.

RETURNS
       GNUTLS_E_SHORT_MEMORY_BUFFER if the provided buffer is not long enough,
       and in that case the *oid_size will be updated with the required size.
       On success 0 is returned.

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


COPYRIGHT
       Copyright © 2001-2020 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/

gnutls                               3.6.1gnutls_x509_crt_get_key_purpose_oid(3)