add "allow_duplicate_users" config option

[l2tpns.git] / ll.c

diff --git a/ll.c b/ll.c
index a4aad8b..a65b2e4 100644 (file)
--- a/ll.c
+++ b/ll.c
@@ -1,5 +1,6 @@
 // L2TPNS Linked List Stuff
-// $Id: ll.c,v 1.1 2003-12-16 07:07:39 fred_nerk Exp $
+
+char const *cvs_id_ll = "$Id: ll.c,v 1.6 2004-11-18 08:12:55 bodea Exp $";
 
 #include <stdio.h>
 #include <sys/file.h>
@@ -15,127 +16,126 @@
 
 linked_list *ll_init()
 {
-    return (linked_list *)calloc(sizeof(linked_list), 1);
+       return (linked_list *)calloc(sizeof(linked_list), 1);
 }
 
 void ll_done(linked_list *l)
 {
-    li *i = l->head, *n;
+       li *i = l->head, *n;
 
-    while (i)
-    {
-       n = i->next;
-       free(i);
-       i = n;
-    }
+       while (i)
+       {
+               n = i->next;
+               free(i);
+               i = n;
+       }
 
-    free(l);
+       free(l);
 }
 
 li *ll_push(linked_list *l, void *data)
 {
-    li *i;
+       li *i;
 
-    if (!l) return NULL;
-    if (!(i = (li *)calloc(sizeof(li), 1))) return NULL;
+       if (!l) return NULL;
+       if (!(i = (li *)calloc(sizeof(li), 1))) return NULL;
 
-    i->data = data;
-    i->next = NULL;
-    if (l->end)
-       l->end->next = i;
-    else
-       l->head = i;
-    l->end = i;
+       i->data = data;
+       i->next = NULL;
+       if (l->end)
+               l->end->next = i;
+       else
+               l->head = i;
+       l->end = i;
 
-    return i;
+       return i;
 }
 
 void *ll_pop(linked_list *l)
 {
-    li *i;
-    void *data;
-
-    if (!l) return NULL;
-    if (!l->head)
-       return NULL;
-
-    data = l->head->data;
-    i = l->head->next;
-    free(l->head);
-    l->head = i;
-    return data;
+       li *i;
+       void *data;
+
+       if (!l) return NULL;
+       if (!l->head)
+               return NULL;
+
+       data = l->head->data;
+       i = l->head->next;
+       free(l->head);
+       l->head = i;
+       return data;
 }
 
 void ll_iterate(linked_list *l, int(*func)(void *))
 {
-    li *i;
-    if (!l || !func) return;
-
-    for (i = l->head; i; i = i->next)
-    {
-       if (i->data)
-           if (!func(i))
-               break;
-    }
+       li *i;
+       if (!l || !func) return;
+
+       for (i = l->head; i; i = i->next)
+       {
+               if (i->data && !func(i->data))
+                       break;
+       }
 }
 
 void ll_reset(linked_list *l)
 {
-    if (!l) return;
-    l->current = NULL;
+       if (!l) return;
+       l->current = NULL;
 }
 
 void *ll_next(linked_list *l)
 {
-    if (!l) return NULL;
-    if (!l->current)
-       l->current = l->head;
-    else
-       l->current = l->current->next;
-    if (!l->current)
-       return NULL;
-    return l->current->data;
+       if (!l) return NULL;
+       if (!l->current)
+               l->current = l->head;
+       else
+               l->current = l->current->next;
+       if (!l->current)
+               return NULL;
+       return l->current->data;
 }
 
 void ll_delete(linked_list *l, void *data)
 {
-    li *i = l->head, *p = NULL;
+       li *i = l->head, *p = NULL;
 
-    while (i)
-    {
-       if (i->data == data)
+       while (i)
        {
-           if (l->head == i) l->head = i->next;
-           if (l->end == i) l->end = i->next;
-           if (p) p->next = i->next;
-           free(i);
-           l->current = NULL;
-           return;
+               if (i->data == data)
+               {
+                       if (l->head == i) l->head = i->next;
+                       if (l->end == i)  l->end = p;
+                       if (p)            p->next = i->next;
+                       free(i);
+                       l->current = NULL;
+                       return;
+               }
+               p = i;
+               i = i->next;
        }
-       p = i;
-       i = i->next;
-    }
 }
 
 int ll_size(linked_list *l)
 {
-    int count = 0;
-    li *i;
+       int count = 0;
+       li *i;
 
-    if (!l) return 0;
+       if (!l) return 0;
 
-    for (i = l->head; i; i = i->next)
-       if (i->data) count++;
+       for (i = l->head; i; i = i->next)
+               if (i->data) count++;
 
-    return count;
+       return count;
 }
 
 int ll_contains(linked_list *l, void *search)
 {
-    li *i;
-    for (i = l->head; i; i = i->next)
-       if (i->data == search)
-           return 1;
-    return 0;
+       li *i;
+       for (i = l->head; i; i = i->next)
+               if (i->data == search)
+                       return 1;
+       return 0;
 }