1.\" $OpenBSD: X509_cmp_time.3,v 1.9 2019/06/06 01:06:59 schwarze Exp $ 2.\" OpenSSL X509_cmp_time.pod 24053693 Mar 28 14:27:37 2017 +0200 3.\" 4.\" This file was written by Emilia Kasper <emilia@openssl.org> 5.\" Copyright (c) 2017 The OpenSSL Project. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in 16.\" the documentation and/or other materials provided with the 17.\" distribution. 18.\" 19.\" 3. All advertising materials mentioning features or use of this 20.\" software must display the following acknowledgment: 21.\" "This product includes software developed by the OpenSSL Project 22.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 23.\" 24.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25.\" endorse or promote products derived from this software without 26.\" prior written permission. For written permission, please contact 27.\" openssl-core@openssl.org. 28.\" 29.\" 5. Products derived from this software may not be called "OpenSSL" 30.\" nor may "OpenSSL" appear in their names without prior written 31.\" permission of the OpenSSL Project. 32.\" 33.\" 6. Redistributions of any form whatsoever must retain the following 34.\" acknowledgment: 35.\" "This product includes software developed by the OpenSSL Project 36.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 37.\" 38.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49.\" OF THE POSSIBILITY OF SUCH DAMAGE. 50.\" 51.Dd $Mdocdate: June 6 2019 $ 52.Dt X509_CMP_TIME 3 53.Os 54.Sh NAME 55.Nm X509_cmp_time , 56.Nm X509_cmp_current_time , 57.Nm X509_time_adj_ex , 58.Nm X509_time_adj 59.Nd ASN.1 Time utilities 60.Sh SYNOPSIS 61.In openssl/x509.h 62.Ft int 63.Fo X509_cmp_time 64.Fa "const ASN1_TIME *asn1_time" 65.Fa "time_t *cmp_time" 66.Fc 67.Ft int 68.Fo X509_cmp_current_time 69.Fa "const ASN1_TIME *asn1_time" 70.Fc 71.Ft ASN1_TIME * 72.Fo X509_time_adj_ex 73.Fa "ASN1_TIME *asn1_time" 74.Fa "int offset_day" 75.Fa "long offset_sec" 76.Fa "time_t *in_tm" 77.Fc 78.Ft ASN1_TIME * 79.Fo X509_time_adj 80.Fa "ASN1_TIME *asn1_time" 81.Fa "long offset_sec" 82.Fa "time_t *in_tm" 83.Fc 84.Sh DESCRIPTION 85.Fn X509_cmp_time 86parses 87.Fa asn1_time 88with 89.Xr ASN1_time_parse 3 90and compares it to 91.Fa cmp_time . 92.Fn X509_cmp_current_time 93compares it to the current time. 94.Pp 95.Fn X509_time_adj_ex 96sets 97.Fa asn1_time 98to a time 99.Fa offset_day 100and 101.Fa offset_sec 102later than 103.Fa in_tm . 104.Fn X509_time_adj 105does the same with a 0 day offset. 106If 107.Fa asn1_time 108is 109.Dv NULL , 110a new 111.Vt ASN1_TIME 112structure is allocated and returned. 113.Pp 114In all functions, if 115.Fa in_tm 116is 117.Dv NULL , 118the current time is used. 119.Sh RETURN VALUES 120.Fn X509_cmp_time 121and 122.Fn X509_cmp_current_time 123return -1 if 124.Fa asn1_time 125is earlier than or equal to 126.Fa cmp_time , 1271 if it is later, or 0 on error. 128.Pp 129.Fn X509_time_adj_ex 130and 131.Fn X509_time_adj 132return a pointer to the updated 133.Vt ASN1_TIME 134structure or 135.Dv NULL 136on error. 137.Sh SEE ALSO 138.Xr ASN1_TIME_new 3 , 139.Xr ASN1_time_parse 3 , 140.Xr ASN1_TIME_set 3 , 141.Xr time 3 142.Sh HISTORY 143.Fn X509_cmp_current_time 144first appeared in SSLeay 0.6.0 and has been available since 145.Ox 2.4 . 146.Pp 147.Fn X509_cmp_time 148and 149.Fn X509_time_adj 150first appeared in OpenSSL 0.9.6 and have been available since 151.Ox 2.9 . 152.Pp 153.Fn X509_time_adj_ex 154first appeared in OpenSSL 1.0.0 and has been available since 155.Ox 4.9 . 156