Added odr_peektag

[yaz-moved-to-github.git] / odr / odr_tag.c

diff --git a/odr/odr_tag.c b/odr/odr_tag.c
index 5679838..9948645 100644 (file)
--- a/odr/odr_tag.c
+++ b/odr/odr_tag.c
@@ -4,7 +4,10 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: odr_tag.c,v $
- * Revision 1.6  1995-12-14 16:28:26  quinn
+ * Revision 1.7  1996-02-20 12:52:54  quinn
+ * Added odr_peektag
+ *
+ * Revision 1.6  1995/12/14  16:28:26  quinn
  * More explain stuff.
  *
  * Revision 1.5  1995/09/29  17:12:27  quinn
@@ -26,6 +29,23 @@
 
 #include <odr.h>
 
+int odr_peektag(ODR o, int *class, int *tag, int *cons)
+{
+    if (o->direction != ODR_DECODE)
+    {
+       o->error = OOTHER;
+       return 0;
+    }
+    if (o->stackp > -1 && !odr_constructed_more(o))
+       return 0;
+    if (ber_dectag(o->bp, class, tag, cons) <= 0)
+    {
+       o->error = OREQUIRED;
+       return 0;
+    }
+    return 1;
+}
+
 int odr_implicit_settag(ODR o, int class, int tag)
 {
     if (o->error)