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/* SPDX-License-Identifier: BSD-3-Clause or GPL-2.0-only */
#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, ...)
#if defined(_WIN32) || (_WIN64)
__attribute__((format(gnu_printf, 3, 4)));
#else
__attribute__((format(printf, 3, 4)));
#endif
/*
* 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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