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.\" $OpenBSD: X509_get_serialNumber.3,v 1.3 2018/03/27 17:35:50 schwarze Exp $
.\" OpenSSL bb9ad09e Jun 6 00:43:05 2016 -0400
.\"
.\" This file was written by Dr. Stephen Henson <steve@openssl.org>.
.\" Copyright (c) 2016 The OpenSSL Project. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\"
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\"
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in
.\" the documentation and/or other materials provided with the
.\" distribution.
.\"
.\" 3. All advertising materials mentioning features or use of this
.\" software must display the following acknowledgment:
.\" "This product includes software developed by the OpenSSL Project
.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
.\"
.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
.\" endorse or promote products derived from this software without
.\" prior written permission. For written permission, please contact
.\" openssl-core@openssl.org.
.\"
.\" 5. Products derived from this software may not be called "OpenSSL"
.\" nor may "OpenSSL" appear in their names without prior written
.\" permission of the OpenSSL Project.
.\"
.\" 6. Redistributions of any form whatsoever must retain the following
.\" acknowledgment:
.\" "This product includes software developed by the OpenSSL Project
.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)"
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\"
.Dd $Mdocdate: March 27 2018 $
.Dt X509_GET_SERIALNUMBER 3
.Os
.Sh NAME
.Nm X509_get_serialNumber ,
.Nm X509_set_serialNumber
.Nd get or set certificate serial number
.Sh SYNOPSIS
.In openssl/x509.h
.Ft ASN1_INTEGER *
.Fo X509_get_serialNumber
.Fa "X509 *x"
.Fc
.Ft int
.Fo X509_set_serialNumber
.Fa "X509 *x"
.Fa "ASN1_INTEGER *serial"
.Fc
.Sh DESCRIPTION
.Fn X509_get_serialNumber
returns the serial number of certificate
.Fa x
as an
.Vt ASN1_INTEGER
structure which can be examined or initialised.
The value returned is an internal pointer which must not be freed
up after the call.
.Pp
.Fn X509_set_serialNumber
sets the serial number of certificate
.Fa x
to
.Fa serial .
A copy of the serial number is used internally so
.Fa serial
should be freed up after use.
.Sh RETURN VALUES
.Fn X509_get_serialNumber
returns an
.Vt ASN1_INTEGER
structure.
.Pp
.Fn X509_set_serialNumber
returns 1 for success and 0 for failure.
.Sh SEE ALSO
.Xr d2i_X509 3 ,
.Xr ERR_get_error 3 ,
.Xr X509_CRL_get0_by_serial 3 ,
.Xr X509_get_pubkey 3 ,
.Xr X509_NAME_add_entry_by_txt 3 ,
.Xr X509_NAME_ENTRY_get_object 3 ,
.Xr X509_NAME_get_index_by_NID 3 ,
.Xr X509_NAME_print_ex 3 ,
.Xr X509_new 3 ,
.Xr X509_sign 3 ,
.Xr X509_verify_cert 3 ,
.Xr X509V3_get_d2i 3
.Sh HISTORY
.Fn X509_get_serialNumber
and
.Fn X509_set_serialNumber
first appeared in SSLeay 0.6.5 and have been available since
.Ox 2.4 .
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