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gnutls_certificate_verify_peers2(3) gnutls gnutls_certificate_verify_peers2(3)


NAME

       gnutls_certificate_verify_peers2 - API function


SYNOPSIS

       #include <gnutls/gnutls.h>

       int gnutls_certificate_verify_peers2(gnutls_session_t session, unsigned
       int * status);


ARGUMENTS

       gnutls_session_t session
		   is a gnutls session

       unsigned int * status
		   is the output of the verification


DESCRIPTION

       This function will verify the peer's certificate and store  the	status
       in  the	status variable as a bitwise OR of gnutls_certificate_status_t
       values or zero if the certificate is trusted. Note that value in   sta-
       tus is set only when the return value of this function is success (i.e,
       failure to trust a certificate does not imply a negative return value).
       The  default verification flags used by this function can be overridden
       using gnutls_certificate_set_verify_flags().

       This function will take into account the stapled OCSP responses sent by
       the server, as well as the following X.509 certificate extensions: Name
       Constraints, Key Usage, and Basic Constraints (pathlen).

       Note that you must also check the peer's name in order to check if  the
       verified    certificate	  belongs    to    the	  actual   peer,   see
       gnutls_x509_crt_check_hostname(),   or	use    gnutls_certificate_ver-
       ify_peers3().

       To  avoid denial of service attacks some default upper limits regarding
       the certificate key size and chain size are set. To override  them  use
       gnutls_certificate_set_verify_limits().


RETURNS

       GNUTLS_E_SUCCESS  (0)  when  the validation is performed, or a negative
       error code otherwise.  A successful error code means that  the	status
       parameter must be checked to obtain the validation status.


REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org


COPYRIGHT

       Copyright (C) 2001-2018 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

       http://www.gnutls.org/manual/

gnutls				     3.6.5 gnutls_certificate_verify_peers2(3)

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