gnutls_certificate_verify_peers3(3) gnutls gnutls_certificate_verify_peers3(3)
NAME
gnutls_certificate_verify_peers3 - API function
SYNOPSIS
#include <gnutls/gnutls.h>
gnutls_certificate_verify_peers3(3) 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 sta-
tus in the status variable as a bitwise OR of gnutls_certificate_sta-
tus_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 docu-
mentation of gnutls_certificate_verify_peers2() for details in the ver-
ification 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: http://www.gnutls.org
COPYRIGHT
Copyright (C) 2001-2019 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_peers3(3)
gnutls 3.6.6 - Generated Sat Jan 26 15:41:00 CST 2019