add stack overflow protection for SEQUENCE and SEQUENCE OF

skeletons/constr_SEQUENCE_oer.c

@@ -95,10 +95,11 @@ SEQUENCE_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
     asn_struct_ctx_t *ctx; /* Decoder context */
     size_t consumed_myself = 0; /* Consumed bytes from ptr. */
 
-
-    (void)opt_codec_ctx;
     (void)constraints;
 
+    if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
+        ASN__DECODE_FAILED;
+
     /*
      * Create the target structure if it is not present already.
      */

skeletons/constr_SET.c

-/*-
+/*
  * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.
  * All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.

skeletons/constr_SET_OF.c

-/*-
- * Copyright (c) 2003, 2004, 2005 Lev Walkin <vlm@lionet.info>.
+/*
+ * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>.
  * All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */

skeletons/constr_SET_OF_oer.c

@@ -117,9 +117,11 @@ SET_OF_decode_oer(const asn_codec_ctx_t *opt_codec_ctx,
     asn_struct_ctx_t *ctx; /* Decoder context */
     size_t consumed_myself = 0; /* Consumed bytes from ptr. */
 
-    (void)opt_codec_ctx;
     (void)constraints;
 
+    if(ASN__STACK_OVERFLOW_CHECK(opt_codec_ctx))
+        ASN__DECODE_FAILED;
+
     /*
      * Create the target structure if it is not present already.
      */