314 lines
8.6 KiB
C
314 lines
8.6 KiB
C
/*
|
|
* Copyright (C) 2010 Tobias Brunner
|
|
* Copyright (C) 2008 Martin Willi
|
|
* Hochschule fuer Technik Rapperswil
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*/
|
|
|
|
/**
|
|
* @defgroup settings settings
|
|
* @{ @ingroup libstrongswan
|
|
*/
|
|
|
|
#ifndef SETTINGS_H_
|
|
#define SETTINGS_H_
|
|
|
|
typedef struct settings_t settings_t;
|
|
|
|
#include "utils.h"
|
|
#include "utils/enumerator.h"
|
|
|
|
/**
|
|
* Convert a string value returned by a key/value enumerator to a boolean.
|
|
*
|
|
* @see settings_t.create_key_value_enumerator()
|
|
* @see settings_t.get_bool()
|
|
* @param value the string value
|
|
* @param def the default value, if value is NULL or invalid
|
|
*/
|
|
bool settings_value_as_bool(char *value, bool def);
|
|
|
|
/**
|
|
* Convert a string value returned by a key/value enumerator to an integer.
|
|
*
|
|
* @see settings_t.create_key_value_enumerator()
|
|
* @see settings_t.get_int()
|
|
* @param value the string value
|
|
* @param def the default value, if value is NULL or invalid
|
|
*/
|
|
int settings_value_as_int(char *value, int def);
|
|
|
|
/**
|
|
* Convert a string value returned by a key/value enumerator to a double.
|
|
*
|
|
* @see settings_t.create_key_value_enumerator()
|
|
* @see settings_t.get_double()
|
|
* @param value the string value
|
|
* @param def the default value, if value is NULL or invalid
|
|
*/
|
|
double settings_value_as_double(char *value, double def);
|
|
|
|
/**
|
|
* Convert a string value returned by a key/value enumerator to a time value.
|
|
*
|
|
* @see settings_t.create_key_value_enumerator()
|
|
* @see settings_t.get_time()
|
|
* @param value the string value
|
|
* @param def the default value, if value is NULL or invalid
|
|
*/
|
|
u_int32_t settings_value_as_time(char *value, u_int32_t def);
|
|
|
|
/**
|
|
* Generic configuration options read from a config file.
|
|
*
|
|
* The syntax is quite simple:
|
|
* @code
|
|
* settings := (section|keyvalue)*
|
|
* section := name { settings }
|
|
* keyvalue := key = value\n
|
|
* @endcode
|
|
* E.g.:
|
|
* @code
|
|
a = b
|
|
section-one {
|
|
somevalue = asdf
|
|
subsection {
|
|
othervalue = xxx
|
|
}
|
|
yetanother = zz
|
|
}
|
|
section-two {
|
|
}
|
|
@endcode
|
|
*
|
|
* The values are accessed using the get() functions using dotted keys, e.g.
|
|
* section-one.subsection.othervalue
|
|
*
|
|
* Currently only a limited set of printf format specifiers are supported
|
|
* (namely %s, %d and %N, see implementation for details).
|
|
*
|
|
* \section includes Including other files
|
|
* Other files can be included, using the include statement e.g.
|
|
* @code
|
|
* include /somepath/subconfig.conf
|
|
* @endcode
|
|
* Shell patterns like *.conf are possible.
|
|
*
|
|
* If the path is relative, the directory of the file containing the include
|
|
* statement is used as base.
|
|
*
|
|
* Sections loaded from included files extend previously loaded sections,
|
|
* already existing values are replaced.
|
|
*
|
|
* All settings included from files are added relative to the section the
|
|
* include statement is in.
|
|
*
|
|
* The following files result in the same final config as above:
|
|
*
|
|
* @code
|
|
a = b
|
|
section-one {
|
|
somevalue = before include
|
|
include include.conf
|
|
}
|
|
include two.conf
|
|
@endcode
|
|
* include.conf
|
|
* @code
|
|
somevalue = asdf
|
|
subsection {
|
|
othervalue = yyy
|
|
}
|
|
yetanother = zz
|
|
@endcode
|
|
* two.conf
|
|
* @code
|
|
section-one {
|
|
subsection {
|
|
othervalue = xxx
|
|
}
|
|
}
|
|
section-two {
|
|
}
|
|
@endcode
|
|
*/
|
|
struct settings_t {
|
|
|
|
/**
|
|
* Get a settings value as a string.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value returned if key not found
|
|
* @param ... argument list for key
|
|
* @return value pointing to internal string
|
|
*/
|
|
char* (*get_str)(settings_t *this, char *key, char *def, ...);
|
|
|
|
/**
|
|
* Get a boolean yes|no, true|false value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value returned if key not found
|
|
* @param ... argument list for key
|
|
* @return value of the key
|
|
*/
|
|
bool (*get_bool)(settings_t *this, char *key, bool def, ...);
|
|
|
|
/**
|
|
* Get an integer value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value returned if key not found
|
|
* @param ... argument list for key
|
|
* @return value of the key
|
|
*/
|
|
int (*get_int)(settings_t *this, char *key, int def, ...);
|
|
|
|
/**
|
|
* Get an double value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value returned if key not found
|
|
* @param ... argument list for key
|
|
* @return value of the key
|
|
*/
|
|
double (*get_double)(settings_t *this, char *key, double def, ...);
|
|
|
|
/**
|
|
* Get a time value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value returned if key not found
|
|
* @param ... argument list for key
|
|
* @return value of the key
|
|
*/
|
|
u_int32_t (*get_time)(settings_t *this, char *key, u_int32_t def, ...);
|
|
|
|
/**
|
|
* Set a string value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param value value to set (gets cloned)
|
|
* @param ... argument list for key
|
|
*/
|
|
void (*set_str)(settings_t *this, char *key, char *value, ...);
|
|
|
|
/**
|
|
* Set a boolean value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param value value to set
|
|
* @param ... argument list for key
|
|
*/
|
|
void (*set_bool)(settings_t *this, char *key, bool value, ...);
|
|
|
|
/**
|
|
* Set an integer value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param value value to set
|
|
* @param ... argument list for key
|
|
*/
|
|
void (*set_int)(settings_t *this, char *key, int value, ...);
|
|
|
|
/**
|
|
* Set an double value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param value value to set
|
|
* @param ... argument list for key
|
|
*/
|
|
void (*set_double)(settings_t *this, char *key, double value, ...);
|
|
|
|
/**
|
|
* Set a time value.
|
|
*
|
|
* @param key key including sections, printf style format
|
|
* @param def value to set
|
|
* @param ... argument list for key
|
|
*/
|
|
void (*set_time)(settings_t *this, char *key, u_int32_t value, ...);
|
|
|
|
/**
|
|
* Create an enumerator over subsection names of a section.
|
|
*
|
|
* @param section section including parents, printf style format
|
|
* @param ... argument list for key
|
|
* @return enumerator over subsection names
|
|
*/
|
|
enumerator_t* (*create_section_enumerator)(settings_t *this,
|
|
char *section, ...);
|
|
|
|
/**
|
|
* Create an enumerator over key/value pairs in a section.
|
|
*
|
|
* @param section section name to list key/value pairs of, printf style
|
|
* @param ... argument list for section
|
|
* @return enumerator over (char *key, char *value)
|
|
*/
|
|
enumerator_t* (*create_key_value_enumerator)(settings_t *this,
|
|
char *section, ...);
|
|
|
|
/**
|
|
* Load settings from the files matching the given pattern.
|
|
*
|
|
* If merge is TRUE, existing sections are extended, existing values
|
|
* replaced, by those found in the loaded files. If it is FALSE, existing
|
|
* sections are purged before reading the new config.
|
|
*
|
|
* @note If any of the files matching the pattern fails to load, no settings
|
|
* are added at all. So, it's all or nothing.
|
|
*
|
|
* @param pattern file pattern
|
|
* @param merge TRUE to merge config with existing values
|
|
* @return TRUE, if settings were loaded successfully
|
|
*/
|
|
bool (*load_files)(settings_t *this, char *pattern, bool merge);
|
|
|
|
/**
|
|
* Load settings from the files matching the given pattern.
|
|
*
|
|
* If merge is TRUE, existing sections are extended, existing values
|
|
* replaced, by those found in the loaded files. If it is FALSE, existing
|
|
* sections are purged before reading the new config.
|
|
*
|
|
* All settings are loaded relative to the given section. The section is
|
|
* created, if it does not yet exist.
|
|
*
|
|
* @note If any of the files matching the pattern fails to load, no settings
|
|
* are added at all. So, it's all or nothing.
|
|
*
|
|
* @param pattern file pattern
|
|
* @param merge TRUE to merge config with existing values
|
|
* @param section section name of parent section, printf style
|
|
* @param ... argument list for section
|
|
* @return TRUE, if settings were loaded successfully
|
|
*/
|
|
bool (*load_files_section)(settings_t *this, char *pattern, bool merge,
|
|
char *section, ...);
|
|
|
|
/**
|
|
* Destroy a settings instance.
|
|
*/
|
|
void (*destroy)(settings_t *this);
|
|
};
|
|
|
|
/**
|
|
* Load settings from a file.
|
|
*
|
|
* @param file file to read settings from, NULL for default
|
|
* @return settings object
|
|
*/
|
|
settings_t *settings_create(char *file);
|
|
|
|
#endif /** SETTINGS_H_ @}*/
|