#ifndef NTUX_H

#define NTUX_H

#include <stdint.h>

#include "ntux_api.h"

#ifdef __cplusplus

extern "C" {

#endif

/* pre-alpha */

#ifndef NTUX_APP

#ifndef NTUX_PRE_ALPHA

#error  libntux: pre-alpha: ABI is not final!

#error  to use the library, please pass -DNTUX_PRE_ALPHA to the compiler.

#endif

#endif

/* status codes */

#define NTUX_OK				0x00

#define NTUX_USAGE			0x01

#define NTUX_ERROR			0x02

/* driver flags */

#define NTUX_DRIVER_VERBOSITY_NONE	0x0000

#define NTUX_DRIVER_VERBOSITY_ERRORS	0x0001

#define NTUX_DRIVER_VERBOSITY_STATUS	0x0002

#define NTUX_DRIVER_VERBOSITY_USAGE	0x0004

#define NTUX_DRIVER_CLONE_VECTOR	0x0008

#define NTUX_DRIVER_VERSION		0x0010

#define NTUX_DRIVER_DRY_RUN		0x0020

#define NTUX_DRIVER_VERBOSE		0x0040

#define NTUX_DRIVER_SILENT		0x0080

#define NTUX_DRIVER_RECURSIVE		0x0100

#define NTUX_DRIVER_CHANGES		0x0200

#define NTUX_DRIVER_ROOTED		0x0400

#define NTUX_DRIVER_ROOTLESS		0x0800

#define NTUX_DRIVER_ANNOTATE_ALWAYS	0x10000000

#define NTUX_DRIVER_ANNOTATE_NEVER	0x20000000

#define NTUX_DRIVER_ANNOTATE_FULL	0x40000000

/* error flags */

#define NTUX_ERROR_TOP_LEVEL		0x0001

#define NTUX_ERROR_NESTED		0x0002

#define NTUX_ERROR_CHILD		0x0004

#define NTUX_ERROR_CUSTOM		0x0008

#define NTUX_ERROR_NATIVE		0x0010

enum ntux_custom_error {

	NTUX_ERR_FLOW_ERROR,

	NTUX_ERR_FLEE_ERROR,

	NTUX_ERR_LDSO_INIT,

	NTUX_ERR_NOT_IMPLEMENTED,

};

enum ntux_cmd {

	NTUX_CMD_DEFAULT,

	NTUX_CMD_STAT,

	NTUX_CMD_SPAWN,

	NTUX_CMD_STRACE,

	NTUX_CMD_CHMOD,

	NTUX_CMD_CAP,

};

struct ntux_source_version {

	int		major;

	int		minor;

	int		revision;

	const char *	commit;

};

struct ntux_fd_ctx {

	int		fdin;

	int		fdout;

	int		fderr;

	int		fdlog;

	int		fdcwd;

	int		fddst;

};

struct ntux_error_info {

	const struct ntux_driver_ctx *	edctx;

	const struct ntux_unit_ctx *	euctx;

	const char *			eunit;

	int				esyscode;

	int				elibcode;

	const char *			efunction;

	int				eline;

	unsigned			eflags;

	void *				eany;

};

struct ntux_common_ctx {

	uint64_t			drvflags;

	uint64_t			actflags;

	uint64_t			fmtflags;

	enum ntux_cmd			cmd;

	int32_t				status;

	char **				sargv;

	char **				senvp;

	const char *			loader;

	const char *			logfile;

	const char *			refmode;

	const char *			strmode;

	const char *			owner;

	const char *			group;

	uint32_t			sysmask[16];

	uint32_t			dbgmask[16];

	uint32_t			osmask [32];

};

struct ntux_driver_ctx {

	const char **			units;

	const char *			program;

	const char *			module;

	const struct ntux_common_ctx *	cctx;

	struct ntux_error_info **	errv;

	void *				any;

};

struct ntux_unit_ctx {

	const char * const *		path;

	void *				any;

};

/* driver api */

ntux_api int  ntux_get_driver_ctx       (char **, char **, uint32_t,

                                         const struct ntux_fd_ctx *,

                                         struct ntux_driver_ctx **);

ntux_api void ntux_free_driver_ctx      (struct ntux_driver_ctx *);

ntux_api int  ntux_get_driver_fdctx     (const struct ntux_driver_ctx *, struct ntux_fd_ctx *);

ntux_api int  ntux_set_driver_fdctx     (struct ntux_driver_ctx *, const struct ntux_fd_ctx *);

/* cmd api */

ntux_api int  ntux_cmd_chmod            (const struct ntux_driver_ctx *, const char *);

ntux_api int  ntux_cmd_stat             (const struct ntux_driver_ctx *, const char *);

ntux_api int  ntux_cmd_spawn            (const struct ntux_driver_ctx *);

ntux_api int  ntux_cmd_strace           (const struct ntux_driver_ctx *);

/* utility api */

ntux_api int  ntux_main                 (char **, char **, const struct ntux_fd_ctx *);

/* error trace api */

ntux_api int  ntux_output_error_vector  (const struct ntux_driver_ctx *);

/* package info */

ntux_api const struct ntux_source_version * ntux_source_version(void);

#ifdef __cplusplus

}

#endif

#endif