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/*
* Configuration Parsers
*
* Copyright (c) 2012 David Herrmann <dh.herrmann@googlemail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Configuration
* This provides generic command-line argument and configuration file parsers
* which can be used by different applications that are part of this
* distribution.
*/
#ifndef CONFIG_CONFIG_H
#define CONFIG_CONFIG_H
#include <stdbool.h>
#include <stdlib.h>
/* configuration parser */
struct conf_type;
struct conf_option;
/* config option flags */
#define CONF_DONE 0x0001
#define CONF_LOCKED 0x0002
/* config type flags */
#define CONF_HAS_ARG 0x0001
struct conf_type {
unsigned int flags;
int (*parse) (struct conf_option *opt, bool on, const char *arg);
void (*free) (struct conf_option *opt);
void (*set_default) (struct conf_option *opt);
};
struct conf_option {
unsigned int flags;
char short_name;
const char *long_name;
const struct conf_type *type;
int (*aftercheck) (struct conf_option *opt, int argc,
char **argv, int idx);
void *mem;
void *def;
};
#define CONF_OPTION(_flags, _short, _long, _type, _aftercheck, _mem, _def) \
{ _flags, _short, "no-" _long, _type, _aftercheck, _mem, _def }
#define CONF_OPTION_BOOL(_short, _long, _aftercheck, _mem, _def) \
CONF_OPTION(0, \
_short, \
_long, \
&conf_bool, \
_aftercheck, \
_mem, \
_def)
#define CONF_OPTION_STRING(_short, _long, _aftercheck, _mem, _def) \
CONF_OPTION(0, \
_short, \
_long, \
&conf_string, \
_aftercheck, \
_mem, \
_def)
void conf_free_value(struct conf_option *opt);
int conf_parse_bool(struct conf_option *opt, bool on, const char *arg);
void conf_default_bool(struct conf_option *opt);
int conf_parse_string(struct conf_option *opt, bool on, const char *arg);
void conf_default_string(struct conf_option *opt);
extern const struct conf_type conf_bool;
extern const struct conf_type conf_string;
void conf_free(struct conf_option *opts, size_t len);
int conf_parse_argv(struct conf_option *opts, size_t len,
int argc, char **argv);
int conf_parse_file(struct conf_option *opts, size_t len, const char *path);
int conf_parse_all_files(struct conf_option *opts, size_t len);
#endif /* CONFIG_CONFIG_H */
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