#ifndef _UTILS_BASE_
#define _UTILS_BASE_
/* Header file for Monitoring Plugins utils_base.c */

#ifndef USE_OPENSSL
#	include "sha256.h"
#endif

/* This file holds header information for thresholds - use this in preference to
   individual plugin logic */

/* This has not been merged with utils.h because of problems with
   timeout_interval when other utils_*.h files use utils.h */

/* Long term, add new functions to utils_base.h for common routines
   and utils_*.h for specific to plugin routines. If routines are
   placed in utils_*.h, then these can be tested with libtap */

#define OUTSIDE 0
#define INSIDE  1

typedef struct range_struct {
	double start;
	bool start_infinity;
	double end;
	int end_infinity;
	int alert_on; /* OUTSIDE (default) or INSIDE */
	char *text;   /* original unparsed text input */
} range;

typedef struct thresholds_struct {
	range *warning;
	range *critical;
} thresholds;

#define NP_STATE_FORMAT_VERSION 1

typedef struct state_data_struct {
	time_t time;
	void *data;
	int length; /* Of binary data */
} state_data;

typedef struct state_key_struct {
	char *name;
	char *plugin_name;
	int data_version;
	char *_filename;
	state_data *state_data;
} state_key;

typedef struct np_struct {
	char *plugin_name;
	state_key *state;
	int argc;
	char **argv;
} monitoring_plugin;

range *parse_range_string(char *);
int _set_thresholds(thresholds **, char *, char *);
void set_thresholds(thresholds **, char *, char *);
void print_thresholds(const char *, thresholds *);
bool check_range(double, range *);
int get_status(double, thresholds *);

/* Handle timeouts */
extern int timeout_state;
extern unsigned int timeout_interval;

/* All possible characters in a threshold range */
#define NP_THRESHOLDS_CHARS "-0123456789.:@~"

char *np_escaped_string(const char *);

void die(int, const char *, ...) __attribute__((noreturn, format(printf, 2, 3)));

/* Return codes for _set_thresholds */
#define NP_RANGE_UNPARSEABLE 1
#define NP_WARN_WITHIN_CRIT  2

/* a simple check to see if we're running as root.
 * returns zero on failure, nonzero on success */
int np_check_if_root(void);

/* mp_suid() returns true if the real and effective uids differs, such as when
 * running a suid plugin */
#define mp_suid() (getuid() != geteuid())

/*
 * Extract the value from key/value pairs, or return NULL. The value returned
 * can be free()ed.
 * This function can be used to parse NTP control packet data and performance
 * data strings.
 */
char *np_extract_value(const char *, const char *, char);

/*
 * Same as np_extract_value with separator suitable for NTP control packet
 * payloads (comma)
 */
#define np_extract_ntpvar(l, n) np_extract_value(l, n, ',')

/*
 * Read a string representing a state (ok, warning... or numeric: 0, 1) and
 * return the corresponding NP_STATE or ERROR)
 */
int mp_translate_state(char *);

void np_enable_state(char *, int);
state_data *np_state_read();
void np_state_write_string(time_t, char *);

void np_init(char *, int argc, char **argv);
void np_set_args(int argc, char **argv);
void np_cleanup();
const char *state_text(int);

#endif /* _UTILS_BASE_ */
