- rename llist_add_to.c to llist.c

- move llist_add_to_end() from ifupdown.c to libbb/llist.c

1 files changed, 43 insertions, 0 deletions

diff --git a/libbb/llist.c b/libbb/llist.c
new file mode 100644
index 000000000..cb87176c5
--- /dev/null
+++ b/libbb/llist.c
@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <string.h>
+#include "unarchive.h"
+#include "libbb.h"
+
+#ifdef L_llist_add_to
+extern llist_t *llist_add_to(llist_t *old_head, char *new_item)
+{
+        llist_t *new_head;
+
+        new_head = xmalloc(sizeof(llist_t));
+        new_head->data = new_item;
+        new_head->link = old_head;
+
+        return (new_head);
+}
+#endif
+
+#ifdef L_llist_add_to_end
+extern llist_t *llist_add_to_end(llist_t *list_head, char *data)
+{
+        llist_t *new_item, *tmp, *prev;
+
+        new_item = xmalloc(sizeof(llist_t));
+        new_item->data = data;
+        new_item->link = NULL;
+
+        prev = NULL;
+        tmp = list_head;
+        while (tmp) {
+                prev = tmp;
+                tmp = tmp->link;
+        }
+        if (prev) {
+                prev->link = new_item;
+        } else {
+                list_head = new_item;
+        }
+
+        return (list_head);
+}
+#endif
+