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gnutls_x509_crt_get_authority_info_access(3)  gnutls gnutls_x509_crt_get_authority_info_access(3)

       gnutls_x509_crt_get_authority_info_access - API function

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_authority_info_access(gnutls_x509_crt_t crt, unsigned int seq, int
       what, gnutls_datum_t * data, unsigned int * critical);

       gnutls_x509_crt_t crt
		   Holds the certificate

       unsigned int seq
		   specifies the sequence number of the access descriptor (0 for the first one, 1
		   for the second etc.)

       int what    what data to get, a gnutls_info_access_what_t type.

       gnutls_datum_t * data
		   output data to be freed with gnutls_free().

       unsigned int * critical
		   pointer  to	output integer that is set to non-0 if the extension is marked as
		   critical (may be NULL)

       This function extracts the Authority Information Access (AIA) extension, see RFC 5280 sec-
       tion  for more information.  The AIA extension holds a sequence of AccessDescrip-
       tion (AD) data:

       <informalexample><programlisting> AuthorityInfoAccessSyntax  ::= SEQUENCE SIZE (1..MAX) OF

       AccessDescription  ::=  SEQUENCE { accessMethod		OBJECT IDENTIFIER, accessLocation
       GeneralName  } </programlisting></informalexample>

       The  seq input parameter is used to indicate which member of the sequence  the  caller  is
       interested in.  The first member is 0, the second member 1 and so on.  When the	seq value
       is out of bounds, GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE is returned.

       The  type  of  data  returned  in   data  is  specified	via    what   which   should   be
       gnutls_info_access_what_t values.

       If   what  is  GNUTLS_IA_ACCESSMETHOD_OID then  data will hold the accessMethod OID (e.g.,

       If  what is GNUTLS_IA_ACCESSLOCATION_GENERALNAME_TYPE,  data will hold the  accessLocation
       GeneralName type (e.g., "uniformResourceIdentifier").

       If   what  is GNUTLS_IA_URI,  data will hold the accessLocation URI data.  Requesting this
       what value leads to an error if the accessLocation is not of  the  "uniformResourceIdenti-
       fier" type.

       If  what is GNUTLS_IA_OCSP_URI,	data will hold the OCSP URI.  Requesting this  what value
       leads to an error if the accessMethod is not aka OSCP, or if	accessLo-
       cation is not of the "uniformResourceIdentifier" type.

       If   what  is GNUTLS_IA_CAISSUERS_URI,  data will hold the caIssuers URI.  Requesting this
       what value leads to an error if the accessMethod is not aka  caIssuers,
       or if accessLocation is not of the "uniformResourceIdentifier" type.

       More  what values may be allocated in the future as needed.

       If   data is NULL, the function does the same without storing the output data, that is, it
       will set  critical and do error checking as usual.

       The value of the critical flag is returned in * critical .  Supply a NULL  critical if you
       want the function to make sure the extension is non-critical, as required by RFC 5280.

       GNUTLS_E_SUCCESS  on  success,  GNUTLS_E_INVALID_REQUEST  on  invalid  crt , GNUTLS_E_CON-
       STRAINT_ERROR if the extension is incorrectly marked as critical (use a non-NULL  critical
       to  override),  GNUTLS_E_UNKNOWN_ALGORITHM if the requested OID does not match (e.g., when
       using GNUTLS_IA_OCSP_URI), otherwise a negative error code.


       Report bugs to <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

       Copyright (C) 2012 Free Software Foundation, Inc..
       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.  As an alternative you may obtain the  man-
       ual from:


gnutls					      3.1.15 gnutls_x509_crt_get_authority_info_access(3)
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