Source restructure. yaz-marcdump part of installation

[yaz-moved-to-github.git] / src / odr_null.c

diff --git a/src/odr_null.c b/src/odr_null.c
new file mode 100644 (file)
index 0000000..cc33ff7
--- /dev/null
+++ b/src/odr_null.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 1995-2003, Index Data
+ * See the file LICENSE for details.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Id: odr_null.c,v 1.1 2003-10-27 12:21:33 adam Exp $
+ */
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "odr-priv.h"
+
+/*
+ * Top level null en/decoder.
+ * Returns 1 on success, 0 on error.
+ */
+int odr_null(ODR o, Odr_null **p, int opt, const char *name)
+{
+    int res, cons = 0;
+
+    if (o->error)
+       return 0;
+    if (o->t_class < 0)
+    {
+       o->t_class = ODR_UNIVERSAL;
+       o->t_tag = ODR_NULL;
+    }
+    if ((res = ber_tag(o, p, o->t_class, o->t_tag, &cons, opt, name)) < 0)
+       return 0;
+    if (!res)
+       return odr_missing(o, opt, name);
+    if (o->direction == ODR_PRINT)
+    {
+       odr_prname(o, name);
+       fprintf(o->print, "NULL\n");
+       return 1;
+    }
+    if (cons)
+    {
+#ifdef ODR_STRICT_NULL
+        odr_seterror(OPROTO, 42);
+       return 0;
+#else
+       fprintf(stderr, "odr: Warning: Bad NULL\n");
+#endif
+    }
+    if (o->direction == ODR_DECODE)
+       *p = odr_nullval();
+    return ber_null(o);
+}