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-rw-r--r--plugins/check_load.c321
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diff --git a/plugins/check_load.c b/plugins/check_load.c
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+/******************************************************************************
+ *
+ * CHECK_LOAD.C
+ *
+ * Written by Felipe Gustavo de Almeida <galmeida@linux.ime.usp.br>
+ * License: GPL
+ * Command line: CHECK_LOAD <wload1> <cload1> <wload5> <cload5> <wload15> <cload15>
+ * First Written: 04/17/99
+ *
+ * Modifications:
+ *
+ * 05/18/1999 - Modified to work getloadavg where available, and use uptime
+ * where neither proc or getloadavg are found. Also use autoconf.
+ * mods by Karl DeBisschop (kdebiss@alum.mit.edu)
+ * 07/01/1999 - Added some #DEFINEs to allow compilation under NetBSD, as
+ * suggested by Andy Doran.
+ * mods by Ethan Galstad (nagios@nagios.org)
+ * 07/17/1999 - Initialized la[] array to prevent NetBSD from complaining
+ * mods by Ethan Galstad (nagios@nagios.org)
+ * 08/18/1999 - Integrated some code with common plugin utilities
+ * mods by Ethan Galstad (nagios@nagios.org)
+ * $Date$
+ * Note: The load format is the same used by "uptime" and "w"
+ *
+ *****************************************************************************/
+
+#include "config.h"
+#include "common.h"
+#include "utils.h"
+
+#ifdef HAVE_SYS_LOADAVG_H
+#include <sys/loadavg.h>
+#endif
+
+/* needed for compilation under NetBSD, as suggested by Andy Doran */
+#ifndef LOADAVG_1MIN
+#define LOADAVG_1MIN 0
+#define LOADAVG_5MIN 1
+#define LOADAVG_15MIN 2
+#endif /* !defined LOADAVG_1MIN */
+
+#include "popen.h"
+#ifdef HAVE_PROC_LOADAVG
+
+#endif
+
+#define PROGNAME "check_load"
+
+int process_arguments (int argc, char **argv);
+int call_getopt (int argc, char **argv);
+int validate_arguments (void);
+void print_usage (void);
+void print_help (void);
+
+float wload1 = -1, wload5 = -1, wload15 = -1;
+float cload1 = -1, cload5 = -1, cload15 = -1;
+
+int
+main (int argc, char **argv)
+{
+#if HAVE_GETLOADAVG==1
+ int result;
+ double la[3] = { 0.0, 0.0, 0.0 }; /* NetBSD complains about unitialized arrays */
+#elif HAVE_PROC_LOADAVG==1
+ FILE *fp;
+ char input_buffer[MAX_INPUT_BUFFER];
+ char *tmp_ptr;
+#else
+ int result;
+ char input_buffer[MAX_INPUT_BUFFER];
+#endif
+
+ float la1, la5, la15;
+
+ if (process_arguments (argc, argv) == ERROR)
+ usage ("\n");
+
+#if HAVE_GETLOADAVG==1
+ result = getloadavg (la, 3);
+ if (result == -1)
+ return STATE_UNKNOWN;
+ la1 = la[LOADAVG_1MIN];
+ la5 = la[LOADAVG_5MIN];
+ la15 = la[LOADAVG_15MIN];
+#elif HAVE_PROC_LOADAVG==1
+ fp = fopen (PROC_LOADAVG, "r");
+ if (fp == NULL) {
+ printf ("Error opening %s\n", PROC_LOADAVG);
+ return STATE_UNKNOWN;
+ }
+
+ la1 = la5 = la15 = -1;
+
+ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
+ tmp_ptr = strtok (input_buffer, " ");
+ la1 = atof (tmp_ptr);
+ tmp_ptr = strtok (NULL, " ");
+ la5 = atof (tmp_ptr);
+ tmp_ptr = strtok (NULL, " ");
+ la15 = atof (tmp_ptr);
+ }
+
+ fclose (fp);
+#else
+ child_process = spopen (PATH_TO_UPTIME);
+ if (child_process == NULL) {
+ printf ("Error opening %s\n", PATH_TO_UPTIME);
+ return STATE_UNKNOWN;
+ }
+ child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
+ if (child_stderr == NULL) {
+ printf ("Could not open stderr for %s\n", PATH_TO_UPTIME);
+ }
+ fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
+ sscanf (input_buffer, "%*[^l]load average: %f, %f, %f", &la1, &la5, &la15);
+
+ result = spclose (child_process);
+ if (result) {
+ printf ("Error code %d returned in %s\n", result, PATH_TO_UPTIME);
+ return STATE_UNKNOWN;
+ }
+#endif
+
+ if ((la1 == -1) || (la5 == -1) || (la15 == -1)) {
+#if HAVE_GETLOADAVG==1
+ printf ("Error in getloadavg()\n");
+#elif HAVE_PROC_LOADAVG==1
+ printf ("Error processing %s\n", PROC_LOADAVG);
+#else
+ printf ("Error processing %s\n", PATH_TO_UPTIME);
+#endif
+ return STATE_UNKNOWN;
+ }
+ printf ("load average: %.2f, %.2f, %.2f", la1, la5, la15);
+ if ((la1 >= cload1) || (la5 >= cload5) || (la15 >= cload15)) {
+ printf (" CRITICAL\n");
+ return STATE_CRITICAL;
+ }
+ if ((la1 >= wload1) || (la5 >= wload5) || (la15 >= wload15)) {
+ printf (" WARNING\n");
+ return STATE_WARNING;
+ }
+ printf ("\n");
+ return STATE_OK;
+}
+
+
+
+
+
+/* process command-line arguments */
+int
+process_arguments (int argc, char **argv)
+{
+ int c;
+
+ if (argc < 2)
+ return ERROR;
+
+ c = 0;
+ while (c += (call_getopt (argc - c, &argv[c]))) {
+ if (argc <= c)
+ break;
+
+ if (wload1 < 0 && is_nonnegative (argv[c]))
+ wload1 = atof (argv[c]);
+ else if (cload1 < 0 && is_nonnegative (argv[c]))
+ cload1 = atof (argv[c]);
+ else if (wload5 < 0 && is_nonnegative (argv[c]))
+ wload5 = atof (argv[c]);
+ else if (cload5 < 0 && is_nonnegative (argv[c]))
+ cload5 = atof (argv[c]);
+ else if (wload15 < 0 && is_nonnegative (argv[c]))
+ wload15 = atof (argv[c]);
+ else if (cload15 < 0 && is_nonnegative (argv[c]))
+ cload15 = atof (argv[c]);
+ }
+
+ return validate_arguments ();
+}
+
+
+
+
+
+int
+call_getopt (int argc, char **argv)
+{
+ int c, i = 0;
+
+#ifdef HAVE_GETOPT_H
+ int option_index = 0;
+ static struct option long_options[] = {
+ {"warning", required_argument, 0, 'w'},
+ {"critical", required_argument, 0, 'c'},
+ {"version", no_argument, 0, 'V'},
+ {"help", no_argument, 0, 'h'},
+ {0, 0, 0, 0}
+ };
+#endif
+
+ while (1) {
+#ifdef HAVE_GETOPT_H
+ c = getopt_long (argc, argv, "+?Vhc:w:", long_options, &option_index);
+#else
+ c = getopt (argc, argv, "+?Vhc:w:");
+#endif
+
+ i++;
+
+ if (c == -1 || c == EOF)
+ break;
+
+ switch (c) {
+ case 'c':
+ case 'w':
+ i++;
+ }
+
+ switch (c) {
+ case 'w': /* warning time threshold */
+ if (is_intnonneg (optarg)) {
+ if (wload1 < 0 && is_nonnegative (argv[c]))
+ wload1 = atof (argv[c]);
+ else if (wload5 < 0 && is_nonnegative (argv[c]))
+ wload5 = atof (argv[c]);
+ else if (wload15 < 0 && is_nonnegative (argv[c]))
+ wload15 = atof (argv[c]);
+ break;
+ }
+ else if (strstr (optarg, ",") &&
+ sscanf (optarg, "%f,%f,%f", &wload1, &wload5, &wload15) == 3) {
+ break;
+ }
+ else {
+ usage ("Warning threshold must be float or float triplet!\n");
+ }
+ case 'c': /* critical time threshold */
+ if (is_intnonneg (optarg)) {
+ if (cload1 < 0 && is_nonnegative (argv[c]))
+ cload1 = atof (argv[c]);
+ else if (cload5 < 0 && is_nonnegative (argv[c]))
+ cload5 = atof (argv[c]);
+ else if (cload15 < 0 && is_nonnegative (argv[c]))
+ cload15 = atof (argv[c]);
+ break;
+ }
+ else if (strstr (optarg, ",") &&
+ sscanf (optarg, "%f,%f,%f", &cload1, &cload5, &cload15) == 3) {
+ break;
+ }
+ else {
+ usage ("Critical threshold must be float or float triplet!\n");
+ }
+ case 'V': /* version */
+ print_revision (my_basename (argv[0]), "$Revision$");
+ exit (STATE_OK);
+ case 'h': /* help */
+ print_help ();
+ exit (STATE_OK);
+ case '?': /* help */
+ usage ("Invalid argument\n");
+ }
+ }
+ return i;
+}
+
+
+
+
+
+int
+validate_arguments (void)
+{
+ if ((wload1 > cload1) || (wload5 > cload5) || (wload15 > cload15)) {
+ printf
+ ("Inconsistence in parameters: \"warning load\" greater than \"critical load\".\n");
+ return STATE_UNKNOWN;
+ }
+
+ return OK;
+}
+
+
+
+
+
+void
+print_usage (void)
+{
+ printf
+ ("Usage: check_load -w WLOAD1,WLOAD5,WLOAD15 -c CLOAD1,CLOAD5,CLOAD15\n"
+ " check_load --version\n" " check_load --help\n");
+}
+
+
+
+
+
+void
+print_help (void)
+{
+ print_revision (PROGNAME, "$Revision$");
+ printf
+ ("Copyright (c) 1999 Felipe Gustavo de Almeida <galmeida@linux.ime.usp.br>\n"
+ "Copyright (c) 2000 Karl DeBisschop\n\n"
+ "This plugin tests the current system load average.\n\n");
+ print_usage ();
+ printf
+ ("\nOptions:\n"
+ " -w, --warning=WLOAD1,WLOAD5,WLOAD15\n"
+ " Exit with WARNING status if load average exceeds WLOADn\n"
+ " -c, --critical=CLOAD1,CLOAD5,CLOAD15\n"
+ " Exit with CRITICAL status if load average exceed CLOADn\n"
+ " -h, --help\n"
+ " Print detailed help screen\n"
+ " -V, --version\n"
+ " Print version information\n\n"
+ "the load average format is the same used by \"uptime\" and \"w\"\n\n");
+ support ();
+}
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