gnutls_x509_crt_get_extension_data(3)                                   gnutls

NAME
       gnutls_x509_crt_get_extension_data - API function

SYNOPSIS
       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_extension_data(gnutls_x509_crt_t cert, unsigned
       indx, void * data, size_t * sizeof_data);

ARGUMENTS
       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       unsigned indx
                   Specifies which extension OID to send. Use (0) to get the
                   first one.

       void * data a pointer to a structure to hold the data (may be null)

       size_t * sizeof_data
                   initially holds the size of  data

DESCRIPTION
       This function will return the requested extension data in the
       certificate.  The extension data will be stored in the provided buffer.

       Use gnutls_x509_crt_get_extension_info() to extract the OID and
       critical flag.  Use gnutls_x509_crt_get_extension_by_oid() instead, if
       you want to get data indexed by the extension OID rather than sequence.

RETURNS
       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
       error code is returned.  If you have reached the last extension
       available GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

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


COPYRIGHT
       Copyright (C) 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/

gnutls                               3.8.5
                                         gnutls_x509_crt_get_extension_data(3)