Convert libressl to use the BoringSSL style time conversions

This gets rid of our last uses of timegm and gmtime in the
library and things that ship with it. It includes a bit
of refactoring in ocsp_cl.c to remove some obvious ugly.

ok tb@

1 files changed, 3 insertions, 2 deletions

diff --git a/src/usr.sbin/ocspcheck/ocspcheck.c b/src/usr.sbin/ocspcheck/ocspcheck.c
index 234f3d22f6..9739e398e8 100644
--- a/src/usr.sbin/ocspcheck/ocspcheck.c
+++ b/src/usr.sbin/ocspcheck/ocspcheck.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ocspcheck.c,v 1.32 2023/11/13 11:46:24 tb Exp $ */
+/* $OpenBSD: ocspcheck.c,v 1.33 2024/03/24 11:30:12 beck Exp $ */
 
 /*
  * Copyright (c) 2017,2020 Bob Beck <beck@openbsd.org>
@@ -34,6 +34,7 @@
 
 #include <openssl/err.h>
 #include <openssl/ocsp.h>
+#include <openssl/posix_time.h>
 #include <openssl/ssl.h>
 
 #include "http.h"
@@ -193,7 +194,7 @@ parse_ocsp_time(ASN1_GENERALIZEDTIME *gt)
                 return -1;
         if (!ASN1_TIME_to_tm(gt, &tm))
                 return -1;
-        if ((rv = timegm(&tm)) == -1)
+        if (!OPENSSL_timegm(&tm, &rv))
                 return -1;
         return rv;
 }