1 files changed, 23 insertions, 1 deletions
diff --git a/sys/cmd/rc/tree.c b/sys/cmd/rc/tree.c
index 0e2146f..0f7378f 100644
--- a/sys/cmd/rc/tree.c
+++ b/sys/cmd/rc/tree.c
@@ -19,7 +19,7 @@ freeparsetree(void)
     Tree *t, *nt;
     for(t = nodes; t; t = nt) {
         nt = t->link;
-        if(t->str)
+        if(t->type == Tword && t->str)
             efree(t->str);
         efree(t);
     }
@@ -60,6 +60,28 @@ hangchild1(Tree *node, Tree *c, int i)
 }
 
 Tree*
+hangchild2(Tree *node, Tree *c1, int i1, Tree *c2, int i2)
+{
+    node->child[i1] = c1;
+    node->child[i2] = c2;
+
+    return node;
+}
+
+Tree*
+hangepilog(Tree *cmd, Tree *epi)
+{
+    Tree *p;
+    if(!epi)
+        return cmd;
+    for(p = epi; p->child[1]; p = p->child[1])
+        ;
+
+    p->child[1] = cmd;
+    return epi;
+}
+
+Tree*
 token(int type, char *s)
 {
     Tree *node = maketree();