From e8d3f9d42c34f268a181661ca4aaedfa066c0a0a Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 7 Oct 2022 15:29:40 +0000
Subject:  Add workaround to bearssl regression with
 BR_FEATURE_X509_TIME_CALLBACK

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 src/sbearssl/sbearssl_dayseconds_from_tai.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/sbearssl/sbearssl_dayseconds_from_tai.c

(limited to 'src/sbearssl/sbearssl_dayseconds_from_tai.c')

diff --git a/src/sbearssl/sbearssl_dayseconds_from_tai.c b/src/sbearssl/sbearssl_dayseconds_from_tai.c
new file mode 100644
index 0000000..73ab2be
--- /dev/null
+++ b/src/sbearssl/sbearssl_dayseconds_from_tai.c
@@ -0,0 +1,21 @@
+/* ISC license. */
+
+#include <errno.h>
+
+#include <skalibs/uint64.h>
+#include <skalibs/tai.h>
+#include <skalibs/djbtime.h>
+
+#include <s6-networking/sbearssl.h>
+
+int sbearssl_dayseconds_from_tai (uint32_t *days, uint32_t *seconds, tai const *t)
+{
+  uint64_t u, d ;
+  if (!utc_from_tai(&u, t)) return 0 ;
+  u -= TAI_MAGIC ;
+  d = u / 86400 + 719528 ;
+  if (d >= 0xffffffffUL) return (errno = EOVERFLOW, 0) ;
+  *days = d ;
+  *seconds = u % 86400 ;
+  return 1 ;
+}
-- 
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