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       gnutls_x509_crt_get_subject_alt_name2  -  Get certificate’s alternative
       name, if any


       #include <gnutls/x509.h>

       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);


       gnutls_x509_crt_t cert
                   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    <>.     GnuTLS   home   page: 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,
       the command

              info gnutls

       should give you access to the complete manual.

gnutls                               2gnutls_x509_crt_get_subject_alt_name2(3)