mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
99d63d4662
Move manpages to manX directories Add Windows/VMS install fix from Richard Levitte Update README Fix typo's Remove some duplicates Reviewed-by: Richard Levitte <levitte@openssl.org>
61 lines
1.8 KiB
Plaintext
61 lines
1.8 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
X509_verify_cert - discover and verify X509 certificate chain
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/x509.h>
|
|
|
|
int X509_verify_cert(X509_STORE_CTX *ctx);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
The X509_verify_cert() function attempts to discover and validate a
|
|
certificate chain based on parameters in B<ctx>. A complete description of
|
|
the process is contained in the L<verify(1)> manual page.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
If a complete chain can be built and validated this function returns 1,
|
|
otherwise it return zero, in exceptional circumstances it can also
|
|
return a negative code.
|
|
|
|
If the function fails additional error information can be obtained by
|
|
examining B<ctx> using, for example X509_STORE_CTX_get_error().
|
|
|
|
=head1 NOTES
|
|
|
|
Applications rarely call this function directly but it is used by
|
|
OpenSSL internally for certificate validation, in both the S/MIME and
|
|
SSL/TLS code.
|
|
|
|
A negative return value from X509_verify_cert() can occur if it is invoked
|
|
incorrectly, such as with no certificate set in B<ctx>, or when it is called
|
|
twice in succession without reinitialising B<ctx> for the second call.
|
|
A negative return value can also happen due to internal resource problems or if
|
|
a retry operation is requested during internal lookups (which never happens
|
|
with standard lookup methods).
|
|
Applications must check for <= 0 return value on error.
|
|
|
|
=head1 BUGS
|
|
|
|
This function uses the header B<x509.h> as opposed to most chain verification
|
|
functions which use B<x509_vfy.h>.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<X509_STORE_CTX_get_error(3)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the OpenSSL license (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|