libbb/llist.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include "unarchive.h"
   4 #include "libbb.h"
   5
   6 #ifdef L_llist_add_to
   7 extern llist_t *llist_add_to(llist_t *old_head, char *new_item)
   8 {
   9         llist_t *new_head;
  10
  11         new_head = xmalloc(sizeof(llist_t));
  12         new_head->data = new_item;
  13         new_head->link = old_head;
  14
  15         return (new_head);
  16 }
  17 #endif
  18
  19 #ifdef L_llist_add_to_end
  20 extern llist_t *llist_add_to_end(llist_t *list_head, char *data)
  21 {
  22         llist_t *new_item, *tmp, *prev;
  23
  24         new_item = xmalloc(sizeof(llist_t));
  25         new_item->data = data;
  26         new_item->link = NULL;
  27
  28         prev = NULL;
  29         tmp = list_head;
  30         while (tmp) {
  31                 prev = tmp;
  32                 tmp = tmp->link;
  33         }
  34         if (prev) {
  35                 prev->link = new_item;
  36         } else {
  37                 list_head = new_item;
  38         }
  39
  40         return (list_head);
  41 }
  42 #endif
  43