added asn1 functions for handling booleans in a simple context

2 files changed, 25 insertions, 0 deletions

diff --git a/lib/util/asn1.c b/lib/util/asn1.c
index c687f8dc9a..aadaf8643a 100644
--- a/lib/util/asn1.c
+++ b/lib/util/asn1.c
@@ -332,6 +332,29 @@ bool asn1_read_BOOLEAN(struct asn1_data *data, bool *v)
 	return !data->has_error;
 }
 
+/* write a BOOLEAN in a simple context */
+bool asn1_write_BOOLEAN_context(struct asn1_data *data, bool v, int context)
+{
+	asn1_push_tag(data, ASN1_CONTEXT_SIMPLE(context));
+	asn1_write_uint8(data, v ? 0xFF : 0);
+	asn1_pop_tag(data);
+	return !data->has_error;
+}
+
+bool asn1_read_BOOLEAN_context(struct asn1_data *data, bool *v, int context)
+{
+	uint8_t tmp = 0;
+	asn1_start_tag(data, ASN1_CONTEXT_SIMPLE(context));
+	asn1_read_uint8(data, &tmp);
+	if (tmp == 0xFF) {
+		*v = true;
+	} else {
+		*v = false;
+	}
+	asn1_end_tag(data);
+	return !data->has_error;
+}
+
 /* check a BOOLEAN */
 bool asn1_check_BOOLEAN(struct asn1_data *data, bool v)
 {
diff --git a/lib/util/asn1.h b/lib/util/asn1.h
index 8ecb85cb81..0f41ae33e5 100644
--- a/lib/util/asn1.h
+++ b/lib/util/asn1.h
@@ -70,6 +70,8 @@ bool asn1_write_ContextSimple(struct asn1_data *data, uint8_t num, DATA_BLOB *bl
 bool asn1_write_BOOLEAN(struct asn1_data *data, bool v);
 bool asn1_read_BOOLEAN(struct asn1_data *data, bool *v);
 bool asn1_check_BOOLEAN(struct asn1_data *data, bool v);
+bool asn1_write_BOOLEAN_context(struct asn1_data *data, bool v, int context);
+bool asn1_read_BOOLEAN_context(struct asn1_data *data, bool *v, int context);
 bool asn1_load(struct asn1_data *data, DATA_BLOB blob);
 bool asn1_peek(struct asn1_data *data, void *p, int len);
 bool asn1_read(struct asn1_data *data, void *p, int len);