plugins/utils.h

   1 #ifndef NP_UTILS_H
   2 #define NP_UTILS_H
   3 /* Header file for nagios plugins utils.c */
   4
   5 /* This file should be included in all plugins */
   6
   7 /* The purpose of this package is to provide safer alternatives to C
   8 functions that might otherwise be vulnerable to hacking. This
   9 currently includes a standard suite of validation routines to be sure
  10 that an string argument acually converts to its intended type and a
  11 suite of string handling routine that do their own memory management
  12 in order to resist overflow attacks. In addition, a few functions are
  13 provided to standardize version and error reporting across the entire
  14 suite of plugins. */
  15
  16 /* now some functions etc are being defined in ../lib/utils_base.c */
  17 #include "utils_base.h"
  18
  19 #ifdef NP_EXTRA_OPTS
  20 /* Include extra-opts functions if compiled in */
  21 #include "extra_opts.h"
  22 #else
  23 /* else, fake np_extra_opts */
  24 #define np_extra_opts(acptr,av,pr) av
  25 #endif
  26
  27 /* Standardize version information, termination */
  28
  29 void support (void);
  30 void print_revision (const char *, const char *);
  31
  32 /* Handle timeouts */
  33
  34 #ifdef LOCAL_TIMEOUT_ALARM_HANDLER
  35 extern unsigned int timeout_interval;
  36 RETSIGTYPE timeout_alarm_handler (int);
  37 #else
  38 unsigned int timeout_interval = DEFAULT_SOCKET_TIMEOUT;
  39 extern RETSIGTYPE timeout_alarm_handler (int);
  40 #endif
  41
  42 time_t start_time, end_time;
  43
  44 /* Test input types */
  45
  46 int is_integer (char *);
  47 int is_intpos (char *);
  48 int is_intneg (char *);
  49 int is_intnonneg (char *);
  50 int is_intpercent (char *);
  51
  52 int is_numeric (char *);
  53 int is_positive (char *);
  54 int is_negative (char *);
  55 int is_nonnegative (char *);
  56 int is_percentage (char *);
  57
  58 int is_option (char *);
  59
  60 /* Generalized timer that will do milliseconds if available */
  61 #ifndef HAVE_STRUCT_TIMEVAL
  62 struct timeval {
  63         long tv_sec;        /* seconds */
  64         long tv_usec;  /* microseconds */
  65 };
  66 #endif
  67
  68 #ifndef HAVE_GETTIMEOFDAY
  69 int gettimeofday(struct timeval *, struct timezone *);
  70 #endif
  71
  72 double delta_time (struct timeval tv);
  73 long deltime (struct timeval tv);
  74
  75 /* Handle strings safely */
  76
  77 void strip (char *);
  78 char *strscpy (char *, const char *);
  79 char *strnl (char *);
  80 char *strpcpy (char *, const char *, const char *);
  81 char *strpcat (char *, const char *, const char *);
  82
  83 int max_state (int a, int b);
  84 int max_state_alt (int a, int b);
  85
  86 void usage (const char *) __attribute__((noreturn));
  87 void usage2(const char *, const char *) __attribute__((noreturn));
  88 void usage3(const char *, int) __attribute__((noreturn));
  89 void usage4(const char *) __attribute__((noreturn));
  90 void usage5(void) __attribute__((noreturn));
  91 void usage_va(const char *fmt, ...) __attribute__((noreturn));
  92
  93 const char *state_text (int);
  94
  95 #define max(a,b) (((a)>(b))?(a):(b))
  96 #define min(a,b) (((a)<(b))?(a):(b))
  97
  98 char *perfdata (const char *,
  99  long int,
 100  const char *,
 101  int,
 102  long int,
 103  int,
 104  long int,
 105  int,
 106  long int,
 107  int,
 108  long int);
 109
 110 char *fperfdata (const char *,
 111  double,
 112  const char *,
 113  int,
 114  double,
 115  int,
 116  double,
 117  int,
 118  double,
 119  int,
 120  double);
 121
 122 /* The idea here is that, although not every plugin will use all of these,
 123    most will or should.  Therefore, for consistency, these very common
 124    options should have only these meanings throughout the overall suite */
 125
 126 #define STD_LONG_OPTS \
 127 {"version",no_argument,0,'V'},\
 128 {"verbose",no_argument,0,'v'},\
 129 {"help",no_argument,0,'h'},\
 130 {"timeout",required_argument,0,'t'},\
 131 {"critical",required_argument,0,'c'},\
 132 {"warning",required_argument,0,'w'},\
 133 {"hostname",required_argument,0,'H'}
 134
 135 #define COPYRIGHT "Copyright (c) %s Nagios Plugin Development Team\n\
 136 \t<%s>\n\n"
 137
 138 #define UT_HLP_VRS "\
 139        %s (-h | --help) for detailed help\n\
 140        %s (-V | --version) for version information\n"
 141
 142 #define UT_HELP_VRSN "\
 143 \nOptions:\n\
 144  -h, --help\n\
 145     Print detailed help screen\n\
 146  -V, --version\n\
 147     Print version information\n"
 148
 149 #define UT_HOST_PORT "\
 150  -H, --hostname=ADDRESS\n\
 151     Host name, IP Address, or unix socket (must be an absolute path)\n\
 152  -%c, --port=INTEGER\n\
 153     Port number (default: %s)\n"
 154
 155 #define UT_IPv46 "\
 156  -4, --use-ipv4\n\
 157     Use IPv4 connection\n\
 158  -6, --use-ipv6\n\
 159     Use IPv6 connection\n"
 160
 161 #define UT_VERBOSE "\
 162  -v, --verbose\n\
 163     Show details for command-line debugging (Nagios may truncate output)\n"
 164
 165 #define UT_WARN_CRIT "\
 166  -w, --warning=DOUBLE\n\
 167     Response time to result in warning status (seconds)\n\
 168  -c, --critical=DOUBLE\n\
 169     Response time to result in critical status (seconds)\n"
 170
 171 #define UT_WARN_CRIT_RANGE "\
 172  -w, --warning=RANGE\n\
 173     Warning range (format: start:end). Alert if outside this range\n\
 174  -c, --critical=RANGE\n\
 175     Critical range\n"
 176
 177 #define UT_TIMEOUT "\
 178  -t, --timeout=INTEGER\n\
 179     Seconds before connection times out (default: %d)\n"
 180
 181 #ifdef NP_EXTRA_OPTS
 182 #define UT_EXTRA_OPTS "\
 183  --extra-opts=[section][@file]\n\
 184     Read additionnal options from ini file\n"
 185 #define UT_EXTRA_OPTS_NOTES "\
 186  See: http://nagiosplugins.org/extra-opts for --extra-opts usage and examples.\n"
 187 #else
 188 #define UT_EXTRA_OPTS ""
 189 #define UT_EXTRA_OPTS_NOTES ""
 190 #endif
 191
 192 #define UT_THRESHOLDS_NOTES "\
 193  See:\n\
 194  http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT\n\
 195  for THRESHOLD format and examples.\n"
 196
 197 #define UT_SUPPORT "\n\
 198 Send email to nagios-users@lists.sourceforge.net if you have questions\n\
 199 regarding use of this software. To submit patches or suggest improvements,\n\
 200 send email to nagiosplug-devel@lists.sourceforge.net\n\n"
 201
 202 #define UT_NOWARRANTY "\n\
 203 The nagios plugins come with ABSOLUTELY NO WARRANTY. You may redistribute\n\
 204 copies of the plugins under the terms of the GNU General Public License.\n\
 205 For more information about these matters, see the file named COPYING.\n"
 206
 207 #endif /* NP_UTILS_H */