.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.

.TH "gnutls_x509_trust_list_verify_crt2" 3 "3.6.14" "gnutls" "gnutls"

.SH NAME

gnutls_x509_trust_list_verify_crt2 \- API function

.SH SYNOPSIS

.B #include <gnutls/x509.h>

.sp

.BI "int gnutls_x509_trust_list_verify_crt2(gnutls_x509_trust_list_t " list ", gnutls_x509_crt_t * " cert_list ", unsigned int " cert_list_size ", gnutls_typed_vdata_st * " data ", unsigned int " elements ", unsigned int " flags ", unsigned int * " voutput ", gnutls_verify_output_function " func ");"

.SH ARGUMENTS

.IP "gnutls_x509_trust_list_t list" 12

The list

.IP "gnutls_x509_crt_t * cert_list" 12

is the certificate list to be verified

.IP "unsigned int cert_list_size" 12

is the certificate list size

.IP "gnutls_typed_vdata_st * data" 12

an array of typed data

.IP "unsigned int elements" 12

the number of data elements

.IP "unsigned int flags" 12

Flags that may be used to change the verification algorithm. Use OR of the gnutls_certificate_verify_flags enumerations.

.IP "unsigned int * voutput" 12

will hold the certificate verification output.

.IP "gnutls_verify_output_function func" 12

If non\-null will be called on each chain element verification with the output.

.SH "DESCRIPTION"

This function will attempt to verify the given certificate chain and return

its status. The  \fIvoutput\fP parameter will hold an OR'ed sequence of

\fBgnutls_certificate_status_t\fP flags.

When a certificate chain of  \fIcert_list_size\fP with more than one certificates is

provided, the verification status will apply to the first certificate in the chain

that failed verification. The verification process starts from the end of the chain

(from CA to end certificate). The first certificate in the chain must be the end\-certificate

while the rest of the members may be sorted or not.

Additionally a certificate verification profile can be specified

from the ones in \fBgnutls_certificate_verification_profiles_t\fP by

ORing the result of \fBGNUTLS_PROFILE_TO_VFLAGS()\fP to the verification

flags.

Additional verification parameters are possible via the  \fIdata\fP types; the

acceptable types are \fBGNUTLS_DT_DNS_HOSTNAME\fP, \fBGNUTLS_DT_IP_ADDRESS\fP and \fBGNUTLS_DT_KEY_PURPOSE_OID\fP.

The former accepts as data a null\-terminated hostname, and the latter a null\-terminated

object identifier (e.g., \fBGNUTLS_KP_TLS_WWW_SERVER\fP).

If a DNS hostname is provided then this function will compare

the hostname in the end certificate against the given. If names do not match the

\fBGNUTLS_CERT_UNEXPECTED_OWNER\fP status flag will be set. In addition it

will consider certificates provided with \fBgnutls_x509_trust_list_add_named_crt()\fP.

If a key purpose OID is provided and the end\-certificate contains the extended key

usage PKIX extension, it will be required to match the provided OID

or be marked for any purpose, otherwise verification will fail with 

\fBGNUTLS_CERT_PURPOSE_MISMATCH\fP status.

.SH "RETURNS"

On success, \fBGNUTLS_E_SUCCESS\fP (0) is returned, otherwise a

negative error value. Note that verification failure will not result to an

error code, only  \fIvoutput\fP will be updated.

.SH "SINCE"

3.3.8

.SH "REPORTING BUGS"

Report bugs to <bugs@gnutls.org>.

.br

Home page: https://www.gnutls.org

.SH COPYRIGHT

Copyright \(co 2001- Free Software Foundation, Inc., and others.

.br

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.

.SH "SEE ALSO"

The full documentation for

.B gnutls

is maintained as a Texinfo manual.

If the /usr/share/doc/gnutls/

directory does not contain the HTML form visit

.B

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

.PP