core/path.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2013 Intel Corporation; author: Matt Fleming
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
   8  *   Boston MA 02110-1301, USA; either version 2 of the License, or
   9  *   (at your option) any later version; incorporated herein by reference.
  10  *
  11  * ----------------------------------------------------------------------- */
  12
  13 #include <klibc/compiler.h>
  14 #include <linux/list.h>
  15 #include <fs.h>
  16 #include <string.h>
  17
  18 __export LIST_HEAD(PATH);
  19
  20 __export struct path_entry *path_add(const char *str)
  21 {
  22     struct path_entry *entry;
  23
  24     if (!strlen(str))
  25         return NULL;
  26
  27     entry = malloc(sizeof(*entry));
  28     if (!entry)
  29         return NULL;
  30
  31     entry->str = strdup(str);
  32     if (!entry->str)
  33         goto bail;
  34
  35     list_add(&entry->list, &PATH);
  36
  37     return entry;
  38
  39 bail:
  40     free(entry);
  41     return NULL;
  42 }