LXR uboot/include/env

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * (C) Copyright 2012
   4 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
   5 */
   6
   7#ifndef __ENV_ATTR_H__
   8#define __ENV_ATTR_H__
   9
  10#define ENV_ATTR_LIST_DELIM     ','
  11#define ENV_ATTR_SEP            ':'
  12
  13/*
  14 * env_attr_walk takes as input an "attr_list" that takes the form:
  15 *      attributes = [^,:\s]*
  16 *      entry = name[:attributes]
  17 *      list = entry[,list]
  18 * It will call the "callback" function with the "name" and "attributes"
  19 * The callback may return a non-0 to abort the list walk.
  20 * This return value will be passed through to the caller.
  21 * 0 is returned on success.
  22 */
  23int env_attr_walk(const char *attr_list,
  24        int (*callback)(const char *name, const char *attributes, void *priv),
  25        void *priv);
  26
  27/*
  28 * env_attr_lookup takes as input an "attr_list" with the same form as above.
  29 * It also takes as input a "name" to look for.
  30 * If the name is found in the list, it's value is copied into "attributes".
  31 * There is no protection on attributes being too small for the value.
  32 * It returns -1 if attributes is NULL, 1 if "name" is not found, 2 if
  33 * "attr_list" is NULL.
  34 * Returns 0 on success.
  35 */
  36int env_attr_lookup(const char *attr_list, const char *name, char *attributes);
  37
  38#endif /* __ENV_ATTR_H__ */
  39