1 files changed, 33 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index d22f91e49..ea338f1dd 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -13476,6 +13476,39 @@ argv_copy(char **p)
         *new = NULL;
         return start;
 }
+
+/*
+ * struct redirtab
+ */
+static void
+redirtab_size(struct redirtab *rdtp)
+{
+        while (rdtp) {
+                funcblocksize += sizeof(*rdtp)+sizeof(rdtp->two_fd[0])*rdtp->pair_count;
+                rdtp = rdtp->next;
+                nodeptrsize++; /* rdtp->next */
+        }
+}
+
+static struct redirtab *
+redirtab_copy(struct redirtab *rdtp)
+{
+        struct redirtab *start;
+        struct redirtab **vpp;
+
+        vpp = &start;
+        while (rdtp) {
+                int size = sizeof(*rdtp)+sizeof(rdtp->two_fd[0])*rdtp->pair_count;
+                *vpp = funcblock;
+                funcblock = (char *) funcblock + size;
+                memcpy(*vpp, rdtp, size);
+                SAVE_PTR((*vpp)->next);
+                rdtp = rdtp->next;
+                vpp = &(*vpp)->next;
+        }
+        *vpp = NULL;
+        return start;
+}
 /*-
  * Copyright (c) 1989, 1991, 1993, 1994
  *      The Regents of the University of California.  All rights reserved.