From b865407aee117c59b326dad7e6aae9fffc90751a Mon Sep 17 00:00:00 2001
From: leitner <leitner>
Date: Wed, 18 Jan 2023 12:20:20 +0000
Subject: [PATCH] add no length check version of sequence parser (so you can
 tell how large the incoming message is to allocate buffer sizes)

---
 scan_asn1SEQUENCE_nolengthcheck.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 scan_asn1SEQUENCE_nolengthcheck.c

diff --git a/scan_asn1SEQUENCE_nolengthcheck.c b/scan_asn1SEQUENCE_nolengthcheck.c
new file mode 100644
index 0000000..6a05240
--- /dev/null
+++ b/scan_asn1SEQUENCE_nolengthcheck.c
@@ -0,0 +1,16 @@
+#include "asn1.h"
+
+size_t scan_asn1SEQUENCE_nolengthcheck(const char* src,const char* max,size_t* len) {
+  size_t res,tmp;
+  unsigned long tag;
+  enum asn1_tagclass tc;
+  enum asn1_tagtype tt;
+  if (!(res=scan_asn1tag(src,max,&tc,&tt,&tag))) return 0;
+  if (!(tmp=scan_asn1length_nolengthcheck(src+res,max,len))) return 0;
+  res+=tmp;
+  if (tc==UNIVERSAL && tt==CONSTRUCTED && tag==SEQUENCE_OF)
+    return res;
+  return 0;
+}
+
+