gnutls_certificate_verify_peers3

gnutls_certificate_verify_peers3(3)  gnutls  gnutls_certificate_verify_peers3(3)



NAME
       gnutls_certificate_verify_peers3 - API function

SYNOPSIS
       #include <gnutls/gnutls.h>

       int gnutls_certificate_verify_peers3(gnutls_session_t session, const char
       * hostname, unsigned int * status);

ARGUMENTS
       gnutls_session_t session
                   is a gnutls session

       const char * hostname
                   is the expected name of the peer; may be NULL

       unsigned int * status
                   is the output of the verification

DESCRIPTION
       This function will verify the peer's certificate and store the 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(). See the documentation of
       gnutls_certificate_verify_peers2() for details in the verification
       process.

       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).

       If the  hostname provided is non-NULL then this function will compare the
       hostname in the certificate against it. The comparison will follow the
       RFC6125 recommendations. If names do not match the
       GNUTLS_CERT_UNEXPECTED_OWNER status flag will be set.

       In order to verify the purpose of the end-certificate (by checking the
       extended key usage), use gnutls_certificate_verify_peers().

       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.

SINCE
       3.1.4

REPORTING BUGS
       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org


COPYRIGHT
       Copyright © 2001-2020 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

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

gnutls                               3.6.13  gnutls_certificate_verify_peers3(3)