Imported Upstream version 4.10upstream/4.10

1 files changed, 5 insertions, 3 deletions

diff --git a/lib/element.c b/lib/element.c
index b7a0905..756e41a 100644
--- a/lib/element.c
+++ b/lib/element.c
@@ -753,7 +753,8 @@ asn1_write_value (asn1_node node_root, const char *name,
  *   %ASN1_VALUE_NOT_FOUND if there isn't any value for the element
  *   selected, and %ASN1_MEM_ERROR if The value vector isn't big enough
  *   to store the result, and in this case @len will contain the number of
- *   bytes needed.
+ *   bytes needed. On the occasion that the stored data are of zero-length
+ *   this function may return %ASN1_SUCCESS even if the provided @len is zero.
  **/
 int
 asn1_read_value (asn1_node root, const char *name, void *ivalue, int *len)
@@ -826,7 +827,8 @@ asn1_read_value (asn1_node root, const char *name, void *ivalue, int *len)
  *   %ASN1_VALUE_NOT_FOUND if there isn't any value for the element
  *   selected, and %ASN1_MEM_ERROR if The value vector isn't big enough
  *   to store the result, and in this case @len will contain the number of
- *   bytes needed.
+ *   bytes needed. On the occasion that the stored data are of zero-length
+ *   this function may return %ASN1_SUCCESS even if the provided @len is zero.
  **/
 int
 asn1_read_value_type (asn1_node root, const char *name, void *ivalue,
@@ -932,7 +934,7 @@ asn1_read_value_type (asn1_node root, const char *name, void *ivalue,
 	{
 	  *len = 0;
 	  if (value)
-	  	value[0] = 0;
+	    value[0] = 0;
 	  p = node->down;
 	  while (p)
 	    {