lib/utils_base.h

   1 #ifndef _UTILS_BASE_
   2 #define _UTILS_BASE_
   3 /* Header file for nagios plugins utils_base.c */
   4
   5 /* This file holds header information for thresholds - use this in preference to
   6    individual plugin logic */
   7
   8 /* This has not been merged with utils.h because of problems with
   9    timeout_interval when other utils_*.h files use utils.h */
  10
  11 /* Long term, add new functions to utils_base.h for common routines
  12    and utils_*.h for specific to plugin routines. If routines are
  13    placed in utils_*.h, then these can be tested with libtap */
  14
  15 #define OUTSIDE 0
  16 #define INSIDE  1
  17
  18 typedef struct range_struct {
  19         double  start;
  20         int     start_infinity;         /* FALSE (default) or TRUE */
  21         double  end;
  22         int     end_infinity;
  23         int     alert_on;               /* OUTSIDE (default) or INSIDE */
  24         } range;
  25
  26 typedef struct thresholds_struct {
  27         range   *warning;
  28         range   *critical;
  29         } thresholds;
  30
  31 range *parse_range_string (char *);
  32 int _set_thresholds(thresholds **, char *, char *);
  33 void set_thresholds(thresholds **, char *, char *);
  34 void print_thresholds(const char *, thresholds *);
  35 int check_range(double, range *);
  36 int get_status(double, thresholds *);
  37
  38 /* All possible characters in a threshold range */
  39 #define NP_THRESHOLDS_CHARS "0123456789.:@~"
  40
  41 char *np_escaped_string (const char *);
  42
  43 void die (int, const char *, ...) __attribute__((noreturn,format(printf, 2, 3)));
  44
  45 /* Return codes for _set_thresholds */
  46 #define NP_RANGE_UNPARSEABLE 1
  47 #define NP_WARN_WITHIN_CRIT 2
  48
  49 /* a simple check to see if we're running as root.
  50  * returns zero on failure, nonzero on success */
  51 int np_check_if_root(void);
  52 /* and a helpful wrapper around that.  it returns the same status
  53  * code from the above function, in case it's helpful for testing */
  54 int np_warn_if_not_root(void);
  55
  56 /*
  57  * Extract the value from key/value pairs, or return NULL. The value returned
  58  * can be free()ed.
  59  * This function can be used to parse NTP control packet data and performance
  60  * data strings.
  61  */
  62 char *np_extract_value(const char*, const char*, char);
  63
  64 /*
  65  * Same as np_extract_value with separator suitable for NTP control packet
  66  * payloads (comma)
  67  */
  68 #define np_extract_ntpvar(l, n) np_extract_value(l, n, ',')
  69
  70 #endif /* _UTILS_BASE_ */