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gnutls_certificate_verify_peers2(3)                                     gnutls


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
       status 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_verify_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().

       Note that when using raw public-keys verification will not work because
       there is no corresponding certificate body belonging to the raw key
       that can be verified. In that case this function will return
       GNUTLS_E_INVALID_REQUEST.


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: https://www.gnutls.org


COPYRIGHT

       Copyright (C) 2001- 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/local/share/doc/gnutls/ directory does not contain the HTML
       form visit

       https://www.gnutls.org/manual/

gnutls                               3.7.9 gnutls_certificate_verify_peers2(3)

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