new file mode 100644
--- /dev/null
+++ b/src/core/ngx_list.c
@@ -0,0 +1,36 @@
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+void *ngx_push_list(ngx_list_t *l)
+{
+    void             *elt;
+    ngx_list_part_t  *last;
+
+    last = l->last;
+
+    if (last->nelts == l->nalloc) {
+
+        /* the last part is full, allocate a new list part */
+
+        if (!(last = ngx_palloc(l->pool, sizeof(ngx_list_part_t)))) {
+            return NULL;
+        }
+
+        if (!(last->elts = ngx_palloc(l->pool, l->nalloc * l->size))) {
+            return NULL;
+        }
+
+        last->nelts = 0;
+        last->next = NULL;
+
+        l->last->next = last;
+        l->last = last;
+    }
+
+    elt = (char *) last->elts + l->size * last->nelts;
+    last->nelts++;
+
+    return elt;
+}