gp_app_cfg.h File Reference

Utility functions for application config files. More...

#include <stdlib.h>
#include <core/gp_compiler.h>

Go to the source code of this file.

Functions
char *	gp_app_cfg_path (const char *app_name, const char *cfg_filename)
	Prepares a path to a config file.
int	gp_app_cfg_mkpath (const char *app_name)
	Creates a path for a config files, if it does not exists.
int	gp_app_cfg_scanf (const char *app_name, const char *cfg_filename, const char *fmt,...)
	Does a single scanf() from a config file.
int	gp_app_cfg_printf (const char *app_name, const char *cfg_filename, const char *fmt,...)
	Does a simple printf() to a config file.

Detailed Description

Utility functions for application config files.

Definition in file gp_app_cfg.h.

Function Documentation

gp_app_cfg_mkpath()

int gp_app_cfg_mkpath

(

const char *

app_name

)

Creates a path for a config files, if it does not exists.

The path is constructed as "$HOME/.config/$APP_NAME/".

Works exactly the same as 'mkdir -p'.

Parameters

app_name

An application name

Returns

Zero on success, non-zero otherwise and errno is set.

gp_app_cfg_path()

char * gp_app_cfg_path	(	const char *	app_name,
		const char *	cfg_filename )

Prepares a path to a config file.

The path is constructed as "$HOME/.config/$APP_NAME/$CFG_FILENAME".

Parameters

app_name	An application name
cfg_filename	A config filename

Returns

A newly allocated buffer with path or NULL in a case of a failure.

gp_app_cfg_printf()

int gp_app_cfg_printf	(	const char *	app_name,
		const char *	cfg_filename,
		const char *	fmt,
			... )

Does a simple printf() to a config file.

Simplified interface for cases when we can write the config with single printf.

Parameters

app_name	An application name
cfg_filename	A config filename
fmt	A printf format string
...	A printf parameters

Returns

Returns -1 on error and errno is set.

gp_app_cfg_scanf()

int gp_app_cfg_scanf	(	const char *	app_name,
		const char *	cfg_filename,
		const char *	fmt,
			... )

Does a single scanf() from a config file.

Simplified interface for cases when we can read the config with single scanf.

Parameters

app_name	An application name
cfg_filename	A config filename
fmt	A scanf format string
...	A scanf parameters

Returns

Returns -1 if the config file does not exists otherwise the return value from the final scanf().