libeconf - Man Page

If a /etc/_example_._suffix_ file exists:

* /etc/_example_._suffix_

* /usr/_vendor_/_project_/_example_._suffix_.d/*._suffix_

* /run/_project_/_example_._suffix_.d/*._suffix_

* /etc/_project_/_example_._suffix_.d/*._suffix_

The list of files and directories read if **no** /etc/_example_._suffix_ file exists:

* /usr/_vendor_/_project_/_example_._suffix_ if no /run/_project_/_example_._suffix_ exist

* /usr/_vendor_/_project_/_example_._suffix_.d/*._suffix_

* /run/_project_/_example_._suffix_.d/*._suffix_

* /etc/_project_/_example_._suffix_.d/*._suffix_

The libeconf library fulfills all requirements defined by the Linux Userspace API (UAPI) Group chapter "Configuration Files Specification".
See: https://uapi-group.org/specifications/specs/configuration_files_specification/

Python Documentation: https://github.com/openSUSE/libeconf/blob/master/bindings/python3/docs/python-libeconf.3

C# Documentation: https://github.com/openSUSE/libeconf/blob/master/bindings/csharp/docs/README.md

typedef enum econf_err econf_err
typedef struct econf_file econf_file
typedef struct econf_ext_value econf_ext_value

enum econf_err { ECONF_SUCCESS = 0, ECONF_ERROR = 1, ECONF_NOMEM = 2, ECONF_NOFILE = 3, ECONF_NOGROUP = 4, ECONF_NOKEY = 5, ECONF_EMPTYKEY = 6, ECONF_WRITEERROR = 7, ECONF_PARSE_ERROR = 8, ECONF_MISSING_BRACKET = 9, ECONF_MISSING_DELIMITER = 10, ECONF_EMPTY_SECTION_NAME = 11, ECONF_TEXT_AFTER_SECTION = 12, ECONF_FILE_LIST_IS_NULL = 13, ECONF_WRONG_BOOLEAN_VALUE = 14, ECONF_KEY_HAS_NULL_VALUE = 15, ECONF_WRONG_OWNER = 16, ECONF_WRONG_GROUP = 17, ECONF_WRONG_FILE_PERMISSION = 18, ECONF_WRONG_DIR_PERMISSION = 19, ECONF_ERROR_FILE_IS_SYM_LINK = 20, ECONF_PARSING_CALLBACK_FAILED = 21 }
libeconf error codes

econf_err econf_readConfig (econf_file **key_file, const char *project, const char *usr_subdir, const char *config_name, const char *config_suffix, const char *delim, const char *comment)
Evaluating key/values of a given configuration by reading and merging all needed/available files in three different directories (normally in /usr/etc, /run and /etc).
econf_err econf_readConfigWithCallback (econf_file **key_file, const char *project, const char *usr_subdir, const char *config_name, const char *config_suffix, const char *delim, const char *comment, bool (*callback)(const char *filename, const void *data), const void *callback_data)
Has the same functionality like econf_readConfig. The user can additionally define a callback in order e.g. to check all parsed file.
econf_err econf_readFile (econf_file **result, const char *file_name, const char *delim, const char *comment)
Process the file of the given file_name and save its contents into key_file object.
econf_err econf_readFileWithCallback (econf_file **result, const char *file_name, const char *delim, const char *comment, bool (*callback)(const char *filename, const void *data), const void *callback_data)
Has the same functionality like econf_readFile. The user can additionally define a callback in order to check the parsed file.
econf_err econf_mergeFiles (econf_file **merged_file, econf_file *usr_file, econf_file *etc_file)
Merge the contents of two key_files objects.
econf_err econf_newKeyFile (econf_file **result, char delimiter, char comment)
Create a new econf_file object.
econf_err econf_newIniFile (econf_file **result)
Create a new econf_file object in IniFile format.
econf_err econf_writeFile (econf_file *key_file, const char *save_to_dir, const char *file_name)
Write content of an econf_file struct to specified location.
char * econf_getPath (econf_file *kf)
Evaluating path name of the regarding configuration file.
econf_err econf_getGroups (econf_file *kf, size_t *length, char ***groups)
Evaluating all group entries.
econf_err econf_getKeys (econf_file *kf, const char *group, size_t *length, char ***keys)
Evaluating all keys.
econf_err econf_getIntValue (econf_file *kf, const char *group, const char *key, int32_t *result)
Evaluating int32 value for given group/key.
econf_err econf_getInt64Value (econf_file *kf, const char *group, const char *key, int64_t *result)
Evaluating int64 value for given group/key.
econf_err econf_getUIntValue (econf_file *kf, const char *group, const char *key, uint32_t *result)
Evaluating uint32 value for given group/key.
econf_err econf_getUInt64Value (econf_file *kf, const char *group, const char *key, uint64_t *result)
Evaluating uint64 value for given group/key.
econf_err econf_getFloatValue (econf_file *kf, const char *group, const char *key, float *result)
Evaluating float value for given group/key.
econf_err econf_getDoubleValue (econf_file *kf, const char *group, const char *key, double *result)
Evaluating double value for given group/key.
econf_err econf_getStringValue (econf_file *kf, const char *group, const char *key, char **result)
Evaluating string value for given group/key.
econf_err econf_getBoolValue (econf_file *kf, const char *group, const char *key, bool *result)
Evaluating bool value for given group/key.
econf_err econf_getIntValueDef (econf_file *kf, const char *group, const char *key, int32_t *result, int32_t def)
Evaluating int32 value for given group/key.
econf_err econf_getInt64ValueDef (econf_file *kf, const char *group, const char *key, int64_t *result, int64_t def)
Evaluating int64 value for given group/key.
econf_err econf_getUIntValueDef (econf_file *kf, const char *group, const char *key, uint32_t *result, uint32_t def)
Evaluating uint32 value for given group/key.
econf_err econf_getUInt64ValueDef (econf_file *kf, const char *group, const char *key, uint64_t *result, uint64_t def)
Evaluating uint64 value for given group/key.
econf_err econf_getFloatValueDef (econf_file *kf, const char *group, const char *key, float *result, float def)
Evaluating float value for given group/key.
econf_err econf_getDoubleValueDef (econf_file *kf, const char *group, const char *key, double *result, double def)
Evaluating double value for given group/key.
econf_err econf_getStringValueDef (econf_file *kf, const char *group, const char *key, char **result, char *def)
Evaluating string value for given group/key.
econf_err econf_getBoolValueDef (econf_file *kf, const char *group, const char *key, bool *result, bool def)
Evaluating bool value for given group/key.
econf_err econf_setIntValue (econf_file *kf, const char *group, const char *key, int32_t value)
Set int32 value for given group/key.
econf_err econf_setInt64Value (econf_file *kf, const char *group, const char *key, int64_t value)
Set int64 value for given group/key.
econf_err econf_setUIntValue (econf_file *kf, const char *group, const char *key, uint32_t value)
Set uint32 value for given group/key.
econf_err econf_setUInt64Value (econf_file *kf, const char *group, const char *key, uint64_t value)
Set uint64 value for given group/key.
econf_err econf_setFloatValue (econf_file *kf, const char *group, const char *key, float value)
Set float value for given group/key.
econf_err econf_setDoubleValue (econf_file *kf, const char *group, const char *key, double value)
Set double value for given group/key.
econf_err econf_setStringValue (econf_file *kf, const char *group, const char *key, const char *value)
Set string value for given group/key.
econf_err econf_setBoolValue (econf_file *kf, const char *group, const char *key, const char *value)
Set bool value for given group/key.
const char * econf_errString (const econf_err error)
Convert an econf_err type to a string.
void econf_errLocation (char **filename, uint64_t *line_nr)
Info about where the error has happened.
void econf_freeArray (char **array)
Free an array of type char** created by econf_getGroups() or econf_getKeys().
void econf_freeFile (econf_file *key_file)
Free memory allocated by e.g.
char econf_comment_tag (econf_file *key_file)
Returns the comment character tag of the given econf_file object.
char econf_delimiter_tag (econf_file *key_file)
Returns the delimiter character of the given econf_file object.
void econf_set_comment_tag (econf_file *key_file, const char comment)
Set the comment character tag of the given econf_file object.
void econf_set_delimiter_tag (econf_file *key_file, const char delimiter)
Set the delimiter character of the given econf_file object. econf_err econf_getExtValue (econf_file *kf, const char *group, const char *key, econf_ext_value **result) Evaluating more information for given group/key.
void econf_freeExtValue (econf_ext_value *to_free)
Free an complete econf_ext_value struct.
econf_err econf_set_conf_dirs (const char **dir_postfix_list)
Set a list of directory structures (with order) which describes the directories in which the files have to be parsed.

Container which includes all information about the configuration file(s).

char ** values
Values of a given key in form of an string array.
char * file
Path of the configuration file where this value has been read.
uint64_t line_number
Line number of the configuration key/value.
char * comment_before_key
Comment before the key/value entry.
char * comment_after_value
Comment after the value entry.

libeconf error codes

Enumerator

ECONF_SUCCESS

General purpose success code.

ECONF_ERROR

Generic Error.

ECONF_NOMEM

Out of memory.

ECONF_NOFILE

Config file not found.

ECONF_NOGROUP

Group not found.

ECONF_NOKEY

Key not found.

ECONF_EMPTYKEY

Key has empty value.

ECONF_WRITEERROR

Error creating or writing to a file.

ECONF_PARSE_ERROR

General syntax error in input file.

ECONF_MISSING_BRACKET

Missing closing section bracket.

ECONF_MISSING_DELIMITER

Missing delimiter.

ECONF_EMPTY_SECTION_NAME

Empty section name.

ECONF_TEXT_AFTER_SECTION

Text after section.

ECONF_FILE_LIST_IS_NULL

Parsed file list is NULL.

ECONF_WRONG_BOOLEAN_VALUE

Wrong boolean value (1/0 true/false yes/no)

ECONF_KEY_HAS_NULL_VALUE

Given key has NULL value.

ECONF_WRONG_OWNER

File has wrong owner.

ECONF_WRONG_GROUP

File has wrong group.

ECONF_WRONG_FILE_PERMISSION

File has wrong file permissions.

ECONF_WRONG_DIR_PERMISSION

File has wrong dir permissions.

ECONF_ERROR_FILE_IS_SYM_LINK

File is a sym link which is not permitted.

ECONF_PARSING_CALLBACK_FAILED

User defined parsing callback has failed.

Evaluating key/values of a given configuration by reading and merging all needed/available files from different directories. Order is:

  /etc/$project/$config_name.$config_suffix does exist:
 
    -- /etc/$project/$config_name.$config_suffix
    -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix    
    -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
    -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix
 
  /etc/$project/$config_name.$config_suffix does NOT exist:
 
    - /run/$project/$config_name.$config_suffix does exist:
 
     -- /run/$project/$config_name.$config_suffix
     -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix      
     -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
     -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix
 
    - /run/$project/$config_name.$config_suffix does NOT exist:
 
     -- $usr_subdir/$project/$config_name.$config_suffix
     -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix      
     -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
     -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix

  No main $config_name.$config_suffix file is defined or must not be parsed:

     -- $usr_subdir/$project.d/*.$config_suffix      
     -- /run/$project.d/*.$config_suffix
     -- /etc/$project.d/*.$config_suffix
 

Parameters:

key_file content of parsed file(s)
project name of the project used as subdirectory, can be NULL
usr_subdir absolute path of the first directory (often "/usr/lib")
config_name basename of the configuration file. If it is NULL, drop-ins without a main configuration file will be parsed only.
config_suffix suffix of the configuration file. Can also be NULL.
delim delimiters of key/value e.g. '\t ='. If delim contains space characters AND none space characters, multiline values are not parseable.
comment array of characters which define the start of a comment

Returns:

econf_err ECONF_SUCCESS or error code

Example: Reading content in different cases in following order:

  /etc/foo/example.conf does exist:

  - /etc/foo/example.conf
  - /usr/lib/foo/example.conf.d/ *.conf  
  - /run/foo/example.conf.d/ *.conf
  - /etc/foo/example.conf.d/ *.conf

  /etc/foo/example.conf does NOT exist:

    /run/foo/example.conf does exist:

    - /run/foo/example.conf
    - /usr/lib/foo/example.conf.d/ *.conf    
    - /run/foo/example.conf.d/ *.conf
    - /etc/foo/example.conf.d/ *.conf

    /run/foo/example.conf does NOT exist:

    - /usr/lib/foo/example.conf
    - /usr/lib/foo/example.conf.d/ *.conf    
    - /run/foo/example.conf.d/ *.conf
    - /etc/foo/example.conf.d/ *.conf

#include "libeconf.h"

econf_file *key_file = NULL;
econf_err error;

error = econf_readConfig (&key_file,
                          "foo",
                          "/usr/lib",
                          "example",
                          "conf",
                          "=", "#");

econf_free (key_file);

Evaluating key/values of a given configuration by reading and merging all needed/available files from different directories. Order is:

  /etc/$project/$config_name.$config_suffix does exist:
 
    -- /etc/$project/$config_name.$config_suffix
    -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix    
    -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
    -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix
 
  /etc/$project/$config_name.$config_suffix does NOT exist:
 
    - /run/$project/$config_name.$config_suffix does exist:
 
     -- /run/$project/$config_name.$config_suffix
     -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix      
     -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
     -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix
 
    - /run/$project/$config_name.$config_suffix does NOT exist:
 
     -- $usr_subdir/$project/$config_name.$config_suffix
     -- $usr_subdir/$project/$config_name.$config_suffix.d/ *.$config_suffix      
     -- /run/$project/$config_name.$config_suffix.d/ *.$config_suffix
     -- /etc/$project/$config_name.$config_suffix.d/ *.$config_suffix

  No main $config_name.$config_suffix file is defined or must not be parsed:

     -- $usr_subdir/$project.d/*.$config_suffix      
     -- /run/$project.d/*.$config_suffix
     -- /etc/$project.d/*.$config_suffix

For each parsed file the user defined function will be called in order e.g. to check the correct file permissions.
 

Parameters:

key_file content of parsed file(s)
project name of the project used as subdirectory, can be NULL
usr_subdir absolute path of the first directory (often "/usr/lib")
config_name basename of the configuration file. If it is NULL, drop-ins without a main configuration file will be parsed only.
config_suffix suffix of the configuration file. Can also be NULL.
delim delimiters of key/value e.g. '\t ='. If delim contains space characters AND none space characters, multiline values are not parseable.
comment array of characters which define the start of a comment
callback function which will be called for each file. This user defined function has the pathname as parameter and returns true if this file can be parsed. If not, the parsing of all files will be aborted and ECONF_PARSING_CALLBACK_FAILED will be returned.
callback_data pointer which will be given to the callback function.

Returns:

econf_err ECONF_SUCCESS or error code

Example: Reading content in different cases in following order:

  /etc/foo/example.conf does exist:

  - /etc/foo/example.conf
  - /usr/lib/foo/example.conf.d/ *.conf  
  - /run/foo/example.conf.d/ *.conf
  - /etc/foo/example.conf.d/ *.conf

  /etc/foo/example.conf does NOT exist:

    /run/foo/example.conf does exist:

    - /run/foo/example.conf
    - /usr/lib/foo/example.conf.d/ *.conf    
    - /run/foo/example.conf.d/ *.conf
    - /etc/foo/example.conf.d/ *.conf

    /run/foo/example.conf does NOT exist:

    - /usr/lib/foo/example.conf
    - /usr/lib/foo/example.conf.d/ *.conf    
    - /run/foo/example.conf.d/ *.conf
    - /etc/foo/example.conf.d/ *.conf

#include "libeconf.h"

bool checkFile(const char *filename, const void *data) {
  /* checking code which returns true or false */
  return true;
}

econf_file *key_file = NULL;
econf_err error;

error = econf_readConfigWithCallback (&key_file,
                                      "foo",
                                      "/usr/lib",
                                      "example",
                                      "conf",
                                      "=", "#",
                                      checkFile,
                                      NULL);

econf_free (key_file);

Process the file of the given file_name and save its contents into key_file object.

Parameters:

result content of parsed file
file_name absolute path of parsed file
delim delimiters of key/value e.g. '\t ='
comment array of characters which define the start of a comment

Returns:

econf_err ECONF_SUCCESS or error code

Usage:

#include "libeconf.h"

econf_file *key_file = NULL;
econf_err error;

error = econf_readFile (&key_file, "/etc/test.conf", "=", "#");

econf_free (key_file);

Default behaviour if entries have the same name in one file: The first hit will be returned. Further entries will be ignored. This can be changed by setting the environment variable JOIN_SAME_ENTRIES (see econf_set_opt). In that case entries with the same name will be joined to one single entry.

Process the file of the given file_name and save its contents into key_file object. The user defined function will be called in order e.g. to check the correct file permissions.

Parameters:

result content of parsed file
file_name absolute path of parsed file
delim delimiters of key/value e.g. '\t ='
comment array of characters which define the start of a comment
callback function which will be called for the given filename. This user defined function has the pathname as parameter and returns true if this file can be parsed. If not, the parsing will be aborted and ECONF_PARSING_CALLBACK_FAILED will be returned.
callback_data pointer which will be given to the callback function.

Returns:

econf_err ECONF_SUCCESS or error code

Usage:

#include "libeconf.h"
bool checkFile(const char *filename, const void *data) {
  /* checking code which returns true or false */
  return true;
}

econf_file *key_file = NULL;
econf_err error;

error = econf_readFileWithCallback (&key_file, "/etc/test.conf", "=", "#", checkFile, NULL);
econf_free (key_file);

Default behaviour if entries have the same name in one file: The first hit will be returned. Further entries will be ignored. This can be changed by setting the environment variable JOIN_SAME_ENTRIES (see econf_set_opt). In that case entries with the same name will be joined to one single entry.

Merge the contents of two key_files objects. Entries in etc_file will be preferred. Comment and delimiter tag will be taken from usr_file. This can be changed by calling the functions econf_set_comment_tag and econf_set_delimiter_tag.

Parameters:

merged_file merged data
usr_file First data block which has to be merged.
etc_file Second data block which has to be merged.

Returns:

econf_err ECONF_SUCCESS or error code

Usage:

#include "libeconf.h"

econf_file *key_file_1 = NULL, *key_file_2 = NULL, *key_file_ret = NULL
econf_err error;

error = econf_readFile (&key_file1, "/usr/etc/test.conf", "=", "#");
error = econf_readFile (&key_file2, /etc/test.conf", "=", "#");
error = econf_mergeFiles (&key_file_ret, key_file_1, key_file_2);

econf_free (key_file_ret);
econf_free (key_file_1);
econf_free (key_file_2);

Create a new econf_file object.

Parameters:

result Pointer to the allocated econf_file object.
delimiter delimiter of key/value e.g. '='
comment Character which defines the start of a comment.

Returns:

econf_err ECONF_SUCCESS or error code

Create a new econf_file object in IniFile format. So the delimiter will be '=' and comments are beginning with '#'.

Parameters:

result Pointer to the allocated econf_file object.

Returns:

econf_err ECONF_SUCCESS or error code

Write content of an econf_file struct to specified location.

Parameters:

key_file Data which has to be written.
save_to_dir Directory into which the file has to be written.
file_name filename (with suffix)

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating path name.

Parameters:

kf given/parsed data

Returns:

Absolute path name or an empty string if kf is a result of already merged data (e.G. returned by econf_readDirs).

Evaluating all group entries.

Parameters:

kf given/parsed data
length Length of the returned group array.
groups String array of evaluated groups.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating all keys.

Parameters:

kf given/parsed data
group Group name for which the keys have to be evaluated or NULL for keys, which do not belong to a group.
length Length of the returned key array.
keys String array of evaluated keys.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating int32 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating int64 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating uint32 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating uint64 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating float value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating double value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating string value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result A newly allocated string or NULL in error case.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating bool value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating int32 value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating int64 value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating uint32 value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating uint64 value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating float value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating double value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating string value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result Returns a newly allocated string, even if 'default' is returned.
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Evaluating bool value for given group/key. If key is not found, the default value is returned and error is ECONF_NOKEY.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result determined value
def Default value if the value has not been found.

Returns:

econf_err ECONF_SUCCESS or error code

Set int32 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set int64 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set uint32 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set uint64 value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set float value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set double value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set string value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Set bool value for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value has to be set.
value Value which has to be set.

Returns:

econf_err ECONF_SUCCESS or error code

Convert an econf_err type to a string.

Parameters:

error error enum

Returns:

human readable string

Info about where the error has happened.

Parameters:

filename Path of the last scanned file.
line_nr Number of the last handled line.

Free an array of type char** created by econf_getGroups() or econf_getKeys().

Parameters:

array array of strings

Returns:

void

Free memory allocated by e.g. econf_readFile(), econf_readDirs(),...

Parameters:

key_file allocated data

Returns:

void

Returns the comment character tag of the given econf_file object. This tag will be taken while writing comments to file.

Parameters:

key_file econf_file object.

Returns:

char comment character tag

Returns the delimiter character of the given econf_file object. This delimiter will be taken while writing the data to file.

Parameters:

key_file econf_file object.

Returns:

char delimiter of key/value

Set the comment character tag of the given econf_file object. This tag will be taken while writing comments to file.

Parameters:

key_file econf_file object.
comment comment tag

Set the delimiter character of the given econf_file object. This delimiter will be taken while writing the data to file.

Parameters:

key_file econf_file object.
delimiter delimiter of key/value

Evaluating more information for given group/key.

Parameters:

kf given/parsed data
group Desired group or NULL if there is no group defined.
key Key for which the value is requested.
result A newly allocated struct or NULL in error case.

Returns:

econf_err ECONF_SUCCESS or error code

Free an complete econf_ext_value struct.

Parameters:

to_free struct which has to be freed

Returns:

void

Set a list of directory structures (with order) which describes the directories in which the files have to be parsed.

Parameters:

dir_postfix_list list of directory structures. E.G. with the given list: {"/conf.d/", ".d/", "/", NULL} files in following directories will be parsed: <default_dirs>/<project_name>.<suffix>.d/ <default_dirs>/<project_name>/conf.d/, <default_dirs>/<project_name>.d/, <default_dirs>/<project_name>/. The entry <default_dirs>/<project_name>.<suffix>.d/ will be added automatically.

Returns:

econf_err ECONF_SUCCESS or error code