--- stack/stack.c	2002/01/07 23:13:14	1.2
+++ stack/stack.c	2002/01/08 00:03:16	1.5
@@ -4,13 +4,14 @@
 #include <stdlib.h>
 /* NULL */
 #include <stddef.h>
+/* dlopen, dlsym, dlerror */
 #include <dlfcn.h>
 
 #define HASHTBLSIZE 65536
 
 typedef struct stack_item
 {
-  enum {value, string, ref, func} type;
+  enum {value, string, ref, func, symbol} type;
   union {
     void* ptr;
     int val;
@@ -109,6 +110,15 @@
   mk_hashentry(in_hashtbl, temp, id);
 }
 
+void def_sym(hashtbl in_hashtbl, const char* id)
+{
+  stackitem* temp= malloc(sizeof(stackitem));
+  
+  temp->type= symbol;
+
+  mk_hashentry(in_hashtbl, temp, id);
+}
+
 int push_ref(stackitem** stack_head, hashtbl in_hash, const char* in_string)
 {
   void* handle;
@@ -121,11 +131,13 @@
   if(new_item->content.ptr==NULL) {
     handle= dlopen(NULL, RTLD_LAZY);
     symbol= dlsym(handle, in_string);
-    if(dlerror()==NULL) {
+    if(dlerror()==NULL) 
       def_func(in_hash, symbol, in_string);
-      new_item->content.ptr= *hash(in_hash, in_string);
-      new_item->type= ref;
-    }
+    else
+      def_sym(in_hash, in_string);
+      
+    new_item->content.ptr= *hash(in_hash, in_string);
+    new_item->type= ref;
   }
 
   push(stack_head, new_item);
@@ -156,6 +168,7 @@
     break;
   case ref:
   case func:
+  case symbol:
     printf("%ld: %p\n", counter, stack_head->content.ptr);
     break;
   }
@@ -223,12 +236,20 @@
   if((*stack_head)==NULL)
     return;
 
-  if((*stack_head)->type==value)
+  switch((*stack_head)->type){
+  case value:
     printf("%d", (*stack_head)->content.val);
-  else if((*stack_head)->type==string)
+    break;
+  case string:
     printf("%s", (char*)(*stack_head)->content.ptr);
-  else
+    break;
+  case symbol:
+    printf("%s", (*stack_head)->id);
+  case ref:
+  default:
     printf("%p", (*stack_head)->content.ptr);
+    break;
+  }
 
   toss(stack_head);
 }
@@ -238,6 +259,11 @@
   printf("\n");
 }
 
+extern void quit()
+{
+  exit(EXIT_SUCCESS);
+}
+
 int main()
 {
   stackitem* s= NULL;
@@ -256,3 +282,7 @@
 
   return EXIT_SUCCESS;
 }
+
+/* Local Variables: */
+/* compile-command:"make CFLAGS=\"-Wall -g -rdynamic -ldl\" stack" */
+/* End: */