gnutls_x509_crt_get_subject_alt_name2 - Get certificate’s alternative
name, if any
int gnutls_x509_crt_get_subject_alt_name2(gnutls_x509_crt_t cert,
unsigned int seq, void * ret, size_t * ret_size, unsigned int *
ret_type, unsigned int * critical);
should contain a gnutls_x509_crt_t structure
unsigned int seq
specifies the sequence number of the alt name (0 for the
first one, 1 for the second etc.)
void * ret is the place where the alternative name will be copied to
size_t * ret_size
holds the size of ret.
unsigned int * ret_type
holds the type of the alternative name (one of
unsigned int * critical
will be non zero if the extension is marked as critical
(may be null)
This function will return the alternative names, contained in the given
certificate. It is the same as gnutls_x509_crt_get_subject_alt_name()
except for the fact that it will return the type of the alternative
name in ret_type even if the function fails for some reason (i.e. the
buffer provided is not enough).
the alternative subject name type on success, one of the enumerated
gnutls_x509_subject_alt_name_t. It will return
GNUTLS_E_SHORT_MEMORY_BUFFER if ret_size is not large enough to hold
the value. In that case ret_size will be updated with the required
size. If the certificate does not have an Alternative name with the
specified sequence number then GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE is
Report bugs to <email@example.com>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
Copyright © 2008 Free Software Foundation.
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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the info and gnutls programs are properly installed at your site,
should give you access to the complete manual.