Bug fix.

[egate.git] / util / iso2709a.c

diff --git a/util/iso2709a.c b/util/iso2709a.c
index 6469df1..e635fab 100644 (file)
--- a/util/iso2709a.c
+++ b/util/iso2709a.c
@@ -4,7 +4,10 @@
  * Europagate, 1995.
  *
  * $Log: iso2709a.c,v $
- * Revision 1.2  1995/03/30 07:33:35  adam
+ * Revision 1.3  1995/03/30 14:22:18  adam
+ * More work on new MARC anchor functions.
+ *
+ * Revision 1.2  1995/03/30  07:33:35  adam
  * New 2709 function: iso2709_mk.
  * First implementation of iso2709_a_insert.
  *
@@ -91,9 +94,17 @@ int iso2709_a_info_field (Iso2709Anchor anchor,
     if (tag)
         *tag = (*anchor->d0)->tag;
     if (indicator)
+    {
         *indicator = (*anchor->d0)->indicator;
+        if (*indicator && !**indicator)
+            *indicator = NULL;
+    }
     if (identifier)
+    {
         *identifier = (*anchor->f0)->identifier;
+        if (*identifier && !**identifier)
+            *identifier = NULL;
+    }
     if (data)
         *data = (*anchor->f0)->data;
     return 1;
@@ -116,7 +127,6 @@ int iso2709_a_delete_field (Iso2709Anchor anchor)
         return 0;
     field = *anchor->f0;
     *anchor->f0 = field->next;
-    free (field->identifier);
     free (field->data);
     free (field);
     if (!*anchor->f0)
@@ -201,21 +211,19 @@ int iso2709_a_insert (Iso2709Anchor a,
        }
         else
            dir->indicator = NULL;
-       dir->next = *a->d0;
-       *a->d0 = dir;
+        if (*a->d0)
+            a->d0 = &(*a->d0)->next;
+        dir->next = *a->d0;
+        *a->d0 = dir;
        dir->fields = NULL;
        a->f0 = &dir->fields;
     }
     if (!(field = malloc (sizeof(*field))))
         return 0;
     if (identifier)
-    {
-        if (!(field->identifier = malloc (strlen (identifier)+1)))
-           return 0;
        strcpy (field->identifier, identifier);
-    }
     else
-        field->identifier = NULL;
+        *field->identifier = '\0';
     if (!(field->data = malloc (strlen (data)+1)))
        return 0;
     strcpy (field->data, data);