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/*
* Copyright 2010, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*/
#ifndef FLASHMAP_LIB_KV_PAIR_H__
#define FLASHMAP_LIB_KV_PAIR_H__
#include <stdio.h>
#include <inttypes.h>
#include <string.h>
/* key=value string pair list */
#define KV_PAIR_MAX_VALUE_LEN 1024
enum kv_pair_style {
KV_STYLE_PAIR, /* key1="value1" key2="value2" */
KV_STYLE_VALUE, /* | value1 | value2 | */
KV_STYLE_LONG, /* key1 | value1 */
/* key2 | value2 */
};
struct kv_pair {
char *key;
char *value;
struct kv_pair *next;
};
extern enum kv_pair_style kv_pair_get_style(void);
extern void kv_pair_set_style(enum kv_pair_style style);
/*
* kv_pair_new - create new key=value pair
*
* returns pointer to new key=value pair
* returns NULL to indicate error
*/
extern struct kv_pair *kv_pair_new(void);
/*
* kv_pair_add - add new key=value pair to list
*
* @kv_list: key=value pair list
* @key: key string
* @value: value string
*
* returns pointer to new key=value pair
* returns NULL to indicate error
*/
extern struct kv_pair *kv_pair_add(struct kv_pair *kv_list,
const char *key, const char *value);
/*
* kv_pair_add_bool - add new boolean kvpair to list
*
* @kv_list: key=value pair list
* @key: key string
* @value: value
*
* returns pointer to new key=value pair
* returns NULL to indicate error
*/
extern struct kv_pair *kv_pair_add_bool(struct kv_pair *kv_list,
const char *key, int value);
/*
* kv_pair_fmt - add key=value pair based on printf format
* NOTE: uses variable argument list
*
* @kv_list: list of key=value pairs
* @kv_key: key string
* @format: printf-style format for value input
* @...: arguments to format
*
* returns pointer to new key=value pair
* returns NULL to indicate error
*/
extern struct kv_pair *kv_pair_fmt(struct kv_pair *kv_list,
const char *kv_key, const char *format, ...)
__attribute__((format(printf, 3, 4)));
/*
* kv_pair_free - clean a key=value pair list
*
* @kv_list: pointer to key=value list
*/
extern void kv_pair_free(struct kv_pair *kv_list);
/*
* kv_pair_print - print a key=value pair list
*
* @kv_list: pointer to key=value list
* @style: print style
*/
extern void kv_pair_print_to_file(FILE* fp, struct kv_pair *kv_list,
enum kv_pair_style style);
/*
* kv_pair_print - print a key=value pair list to gsys output
*
* @kv_list: pointer to key=value list
*/
extern void kv_pair_print(struct kv_pair *kv_list);
/*
* kv_pair_get_value - return first value with key match
*
* @kv_list: pointer to key=value list
* @kv_key: key string
*/
extern const char *kv_pair_get_value(struct kv_pair *kv_list,
const char *kv_key);
/*
* kv_pair_size - return number of kv pairs in the chain
*
* @kv_list: pointer to key=value list
*/
extern int kv_pair_size(struct kv_pair *kv_list);
#endif /* FLASHMAP_LIB_KV_PAIR_H__ */
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