Provide CBB_add_u32(), as needed for an upcoming conversion.

ok tb@

2 files changed, 17 insertions, 2 deletions

diff --git a/src/lib/libssl/bs_cbb.c b/src/lib/libssl/bs_cbb.c
index bf7de3fd33..beb588fe25 100644
--- a/src/lib/libssl/bs_cbb.c
+++ b/src/lib/libssl/bs_cbb.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bs_cbb.c,v 1.18 2017/11/28 16:34:20 jsing Exp $       */
+/*      $OpenBSD: bs_cbb.c,v 1.19 2018/08/16 18:39:37 jsing Exp $       */
 /*
  * Copyright (c) 2014, Google Inc.
  *
@@ -406,6 +406,15 @@ CBB_add_u24(CBB *cbb, size_t value)
 }
 
 int
+CBB_add_u32(CBB *cbb, size_t value)
+{
+        if (value > 0xffffffffUL)
+                return 0;
+
+        return cbb_add_u(cbb, (uint32_t)value, 4);
+}
+
+int
 CBB_add_asn1_uint64(CBB *cbb, uint64_t value)
 {
         CBB child;
diff --git a/src/lib/libssl/bytestring.h b/src/lib/libssl/bytestring.h
index 2e89a5791a..20ee43999d 100644
--- a/src/lib/libssl/bytestring.h
+++ b/src/lib/libssl/bytestring.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: bytestring.h,v 1.16 2017/11/28 16:34:20 jsing Exp $   */
+/*      $OpenBSD: bytestring.h,v 1.17 2018/08/16 18:39:37 jsing Exp $   */
 /*
  * Copyright (c) 2014, Google Inc.
  *
@@ -462,6 +462,12 @@ int CBB_add_u16(CBB *cbb, size_t value);
 int CBB_add_u24(CBB *cbb, size_t value);
 
 /*
+ * CBB_add_u32 appends a 32-bit, big-endian number from |value| to |cbb|. It
+ * returns one on success and zero otherwise.
+ */
+int CBB_add_u32(CBB *cbb, size_t value);
+
+/*
  * CBB_add_asn1_uint64 writes an ASN.1 INTEGER into |cbb| using |CBB_add_asn1|
  * and writes |value| in its contents. It returns one on success and zero on
  * error.