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diff --git a/plugins/check_procs.c b/plugins/check_procs.c
index 1be93f464b81202db11cec6459b9d39b837c89f8..d875a618f3eb259644928f39b4299a650467aa13 100644 (file)
--- a/plugins/check_procs.c
+++ b/plugins/check_procs.c
-/******************************************************************************
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
-
-******************************************************************************/
+/*****************************************************************************
+*
+* Nagios check_procs plugin
+*
+* License: GPL
+* Copyright (c) 2000-2008 Nagios Plugins Development Team
+*
+* Description:
+*
+* This file contains the check_procs plugin
+*
+* Checks all processes and generates WARNING or CRITICAL states if the
+* specified metric is outside the required threshold ranges. The metric
+* defaults to number of processes. Search filters can be applied to limit
+* the processes to check.
+*
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program. If not, see <http://www.gnu.org/licenses/>.
+*
+*
+*****************************************************************************/
const char *progname = "check_procs";
-const char *revision = "$Revision$";
-const char *copyright = "2000-2004";
+const char *program_name = "check_procs"; /* Required for coreutils libs */
+const char *copyright = "2000-2008";
const char *email = "nagiosplug-devel@lists.sourceforge.net";
#include "common.h"
-#include "popen.h"
#include "utils.h"
+#include "utils_cmd.h"
+#include "regex.h"
#include <pwd.h>
#define RSS 128
#define PCPU 256
#define ELAPSED 512
+#define EREG_ARGS 1024
/* Different metrics */
char *metric_name;
enum metric {
int verbose = 0;
int uid;
-int ppid;
+pid_t ppid;
int vsz;
int rss;
float pcpu;
char *statopts;
char *prog;
char *args;
+char *input_filename = NULL;
+regex_t re_args;
char *fmt;
char *fails;
char tmp[MAX_INPUT_BUFFER];
+FILE *ps_input = NULL;
int
char *input_line;
char *procprog;
+ pid_t mypid = 0;
int procuid = 0;
- int procppid = 0;
+ pid_t procpid = 0;
+ pid_t procppid = 0;
int procvsz = 0;
int procrss = 0;
int procseconds = 0;
float procpcpu = 0;
char procstat[8];
- char procetime[MAX_INPUT_BUFFER];
+ char procetime[MAX_INPUT_BUFFER] = { '\0' };
char *procargs;
- char *temp_string;
const char *zombie = "Z";
int expected_cols = PS_COLS - 1;
int warn = 0; /* number of processes in warn state */
int crit = 0; /* number of processes in crit state */
- int i = 0;
-
+ int i = 0, j = 0;
int result = STATE_UNKNOWN;
+ output chld_out, chld_err;
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
+ setlocale(LC_NUMERIC, "POSIX");
input_buffer = malloc (MAX_INPUT_BUFFER);
procprog = malloc (MAX_INPUT_BUFFER);
asprintf (&metric_name, "PROCS");
metric = METRIC_PROCS;
+ /* Parse extra opts if any */
+ argv=np_extra_opts (&argc, argv, progname);
+
if (process_arguments (argc, argv) == ERROR)
usage4 (_("Could not parse arguments"));
+ /* get our pid */
+ mypid = getpid();
+
/* Set signal handling and alarm timeout */
- if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) {
- usage4 (_("Cannot catch SIGALRM"));
+ if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR) {
+ die (STATE_UNKNOWN, _("Cannot catch SIGALRM"));
}
- alarm (timeout_interval);
+ (void) alarm ((unsigned) timeout_interval);
if (verbose >= 2)
printf (_("CMD: %s\n"), PS_COMMAND);
- child_process = spopen (PS_COMMAND);
- if (child_process == NULL) {
- printf (_("Could not open pipe: %s\n"), PS_COMMAND);
- return STATE_UNKNOWN;
+ if (input_filename == NULL) {
+ result = cmd_run( PS_COMMAND, &chld_out, &chld_err, 0);
+ if (chld_err.lines > 0) {
+ printf ("%s: %s", _("System call sent warnings to stderr"), chld_err.line[0]);
+ exit(STATE_WARNING);
+ }
+ } else {
+ result = cmd_file_read( input_filename, &chld_out, 0);
}
- child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
- if (child_stderr == NULL)
- printf (_("Could not open stderr for %s\n"), PS_COMMAND);
-
- /* flush first line */
- fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
- while ( input_buffer[strlen(input_buffer)-1] != '\n' )
- fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
-
- while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
- asprintf (&input_line, "%s", input_buffer);
- while ( input_buffer[strlen(input_buffer)-1] != '\n' ) {
- fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
- asprintf (&input_line, "%s%s", input_line, input_buffer);
- }
+ /* flush first line: j starts at 1 */
+ for (j = 1; j < chld_out.lines; j++) {
+ input_line = chld_out.line[j];
if (verbose >= 3)
printf ("%s", input_line);
cols = sscanf (input_line, PS_FORMAT, PS_VARLIST);
/* Zombie processes do not give a procprog command */
- if ( cols == (expected_cols - 1) && strstr(procstat, zombie) ) {
+ if ( cols < expected_cols && strstr(procstat, zombie) ) {
cols = expected_cols;
}
if ( cols >= expected_cols ) {
strip (procargs);
/* Some ps return full pathname for command. This removes path */
- temp_string = strtok ((char *)procprog, "/");
- while (temp_string) {
- strcpy(procprog, temp_string);
- temp_string = strtok (NULL, "/");
- }
+ strcpy(procprog, base_name(procprog));
/* we need to convert the elapsed time to seconds */
procseconds = convert_to_seconds(procetime);
if (verbose >= 3)
- printf ("%d %d %d %d %d %.2f %s %s %s %s\n",
+ printf ("proc#=%d uid=%d vsz=%d rss=%d pid=%d ppid=%d pcpu=%.2f stat=%s etime=%s prog=%s args=%s\n",
procs, procuid, procvsz, procrss,
- procppid, procpcpu, procstat,
+ procpid, procppid, procpcpu, procstat,
procetime, procprog, procargs);
/* Ignore self */
- if (strcmp (procprog, progname) == 0) {
- continue;
- }
+ if (mypid == procpid) continue;
if ((options & STAT) && (strstr (statopts, procstat)))
resultsum |= STAT;
if ((options & ARGS) && procargs && (strstr (procargs, args) != NULL))
resultsum |= ARGS;
+ if ((options & EREG_ARGS) && procargs && (regexec(&re_args, procargs, (size_t) 0, NULL, 0) == 0))
+ resultsum |= EREG_ARGS;
if ((options & PROG) && procprog && (strcmp (prog, procprog) == 0))
resultsum |= PROG;
if ((options & PPID) && (procppid == ppid))
continue;
procs++;
+ if (verbose >= 2) {
+ printf ("Matched: uid=%d vsz=%d rss=%d pid=%d ppid=%d pcpu=%.2f stat=%s etime=%s prog=%s args=%s\n",
+ procuid, procvsz, procrss,
+ procpid, procppid, procpcpu, procstat,
+ procetime, procprog, procargs);
+ }
if (metric == METRIC_VSZ)
i = check_thresholds (procvsz);
}
}
- /* If we get anything on STDERR, at least set warning */
- while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) {
- if (verbose)
- printf (_("STDERR: %s"), input_buffer);
- result = max_state (result, STATE_WARNING);
- printf (_("System call sent warnings to stderr\n"));
- }
-
- (void) fclose (child_stderr);
-
- /* close the pipe */
- if (spclose (child_process)) {
- printf (_("System call returned nonzero status\n"));
- result = max_state (result, STATE_WARNING);
- }
-
if (found == 0) { /* no process lines parsed so return STATE_UNKNOWN */
printf (_("Unable to read output\n"));
- return result;
+ return STATE_UNKNOWN;
}
if ( result == STATE_UNKNOWN )
char *user;
struct passwd *pw;
int option = 0;
+ int err;
+ int cflags = REG_NOSUB | REG_EXTENDED;
+ char errbuf[MAX_INPUT_BUFFER];
+ char *temp_string;
+ int i=0;
static struct option longopts[] = {
{"warning", required_argument, 0, 'w'},
{"critical", required_argument, 0, 'c'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
+ {"ereg-argument-array", required_argument, 0, CHAR_MAX+1},
+ {"input-file", required_argument, 0, CHAR_MAX+2},
{0, 0, 0, 0}
};
switch (c) {
case '?': /* help */
- printf (_("%s: Unknown argument: %s\n\n"), progname, optarg);
- print_usage ();
- exit (STATE_UNKNOWN);
+ usage5 ();
case 'h': /* help */
print_help ();
exit (STATE_OK);
case 'V': /* version */
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
exit (STATE_OK);
case 't': /* timeout period */
if (!is_integer (optarg))
else if (sscanf (optarg, "%d:", &cmin) == 1)
break;
else
- usage (_("Critical Process Count must be an integer!\n\n"));
+ usage4 (_("Critical Process Count must be an integer!"));
break;
case 'w': /* warning threshold */
if (is_integer (optarg))
else if (sscanf (optarg, "%d:", &wmin) == 1)
break;
else
- usage (_("Warning Process Count must be an integer!\n\n"));
+ usage4 (_("Warning Process Count must be an integer!"));
break;
case 'p': /* process id */
if (sscanf (optarg, "%d%[^0-9]", &ppid, tmp) == 1) {
options |= PPID;
break;
}
- usage2 (_("%s: Parent Process ID must be an integer!\n\n"), progname);
+ usage4 (_("Parent Process ID must be an integer!"));
case 's': /* status */
if (statopts)
break;
pw = getpwuid ((uid_t) uid);
/* check to be sure user exists */
if (pw == NULL)
- usage2 (_("UID %s was not found\n"), optarg);
+ usage2 (_("UID was not found"), optarg);
}
else {
pw = getpwnam (optarg);
/* check to be sure user exists */
if (pw == NULL)
- usage2 (_("User name %s was not found\n"), optarg);
+ usage2 (_("User name was not found"), optarg);
/* then get uid */
uid = pw->pw_uid;
}
user = pw->pw_name;
- asprintf (&fmt, _("%s%sUID = %d (%s)"), (fmt ? fmt : ""), (options ? ", " : ""),
+ asprintf (&fmt, "%s%sUID = %d (%s)", (fmt ? fmt : ""), (options ? ", " : ""),
uid, user);
options |= USER;
break;
break;
else
args = optarg;
- asprintf (&fmt, _("%s%sargs '%s'"), (fmt ? fmt : ""), (options ? ", " : ""), args);
+ asprintf (&fmt, "%s%sargs '%s'", (fmt ? fmt : ""), (options ? ", " : ""), args);
options |= ARGS;
break;
+ case CHAR_MAX+1:
+ err = regcomp(&re_args, optarg, cflags);
+ if (err != 0) {
+ regerror (err, &re_args, errbuf, MAX_INPUT_BUFFER);
+ die (STATE_UNKNOWN, "PROCS %s: %s - %s\n", _("UNKNOWN"), _("Could not compile regular expression"), errbuf);
+ }
+ /* Strip off any | within the regex optarg */
+ temp_string = strdup(optarg);
+ while(temp_string[i]!='\0'){
+ if(temp_string[i]=='|')
+ temp_string[i]=',';
+ i++;
+ }
+ asprintf (&fmt, "%s%sregex args '%s'", (fmt ? fmt : ""), (options ? ", " : ""), temp_string);
+ options |= EREG_ARGS;
+ break;
case 'r': /* RSS */
if (sscanf (optarg, "%d%[^0-9]", &rss, tmp) == 1) {
- asprintf (&fmt, _("%s%sRSS >= %d"), (fmt ? fmt : ""), (options ? ", " : ""), rss);
+ asprintf (&fmt, "%s%sRSS >= %d", (fmt ? fmt : ""), (options ? ", " : ""), rss);
options |= RSS;
break;
}
- usage2 (_("%s: RSS must be an integer!\n\n"), progname);
+ usage4 (_("RSS must be an integer!"));
case 'z': /* VSZ */
if (sscanf (optarg, "%d%[^0-9]", &vsz, tmp) == 1) {
- asprintf (&fmt, _("%s%sVSZ >= %d"), (fmt ? fmt : ""), (options ? ", " : ""), vsz);
+ asprintf (&fmt, "%s%sVSZ >= %d", (fmt ? fmt : ""), (options ? ", " : ""), vsz);
options |= VSZ;
break;
}
- usage2 (_("%s: VSZ must be an integer!\n\n"), progname);
+ usage4 (_("VSZ must be an integer!"));
case 'P': /* PCPU */
/* TODO: -P 1.5.5 is accepted */
if (sscanf (optarg, "%f%[^0-9.]", &pcpu, tmp) == 1) {
- asprintf (&fmt, _("%s%sPCPU >= %.2f"), (fmt ? fmt : ""), (options ? ", " : ""), pcpu);
+ asprintf (&fmt, "%s%sPCPU >= %.2f", (fmt ? fmt : ""), (options ? ", " : ""), pcpu);
options |= PCPU;
break;
}
- usage2 (_("%s: PCPU must be a float!\n\n"), progname);
+ usage4 (_("PCPU must be a float!"));
case 'm':
asprintf (&metric_name, "%s", optarg);
if ( strcmp(optarg, "PROCS") == 0) {
break;
}
- printf (_("%s: metric must be one of PROCS, VSZ, RSS, CPU, ELAPSED!\n\n"),
- progname);
- print_usage ();
- exit (STATE_UNKNOWN);
+ usage4 (_("Metric must be one of PROCS, VSZ, RSS, CPU, ELAPSED!"));
case 'v': /* command */
verbose++;
break;
+ case CHAR_MAX+2:
+ input_filename = optarg;
+ break;
}
}
}
-
-
/* convert the elapsed time to seconds */
int
convert_to_seconds(char *etime) {
(minutes * 60) +
seconds;
- if (verbose >= 3) {
- printf("seconds: %d\n", total);
+ if (verbose >= 3 && metric == METRIC_ELAPSED) {
+ printf("seconds: %d\n", total);
}
return total;
}
-
void
print_help (void)
{
- print_revision (progname, revision);
+ print_revision (progname, NP_VERSION);
- printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>");
+ printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
printf (COPYRIGHT, copyright, email);
- printf(_("\
-Checks all processes and generates WARNING or CRITICAL states if the specified\n\
-metric is outside the required threshold ranges. The metric defaults to number\n\
-of processes. Search filters can be applied to limit the processes to check.\n\n"));
+ printf ("%s\n", _("Checks all processes and generates WARNING or CRITICAL states if the specified"));
+ printf ("%s\n", _("metric is outside the required threshold ranges. The metric defaults to number"));
+ printf ("%s\n", _("of processes. Search filters can be applied to limit the processes to check."));
- print_usage ();
+ printf ("\n\n");
- printf(_("\n\
-Required Arguments:\n\
- -w, --warning=RANGE\n\
- Generate warning state if metric is outside this range\n\
- -c, --critical=RANGE\n\
- Generate critical state if metric is outside this range\n"));
+ print_usage ();
- printf(_("\n\
-Optional Arguments:\n\
- -m, --metric=TYPE\n\
- Check thresholds against metric. Valid types:\n\
- PROCS - number of processes (default)\n\
- VSZ - virtual memory size\n\
- RSS - resident set memory size\n\
- CPU - percentage cpu\n"));
+ printf (UT_HELP_VRSN);
+ printf (UT_EXTRA_OPTS);
+ printf (" %s\n", "-w, --warning=RANGE");
+ printf (" %s\n", _("Generate warning state if metric is outside this range"));
+ printf (" %s\n", "-c, --critical=RANGE");
+ printf (" %s\n", _("Generate critical state if metric is outside this range"));
+ printf (" %s\n", "-m, --metric=TYPE");
+ printf (" %s\n", _("Check thresholds against metric. Valid types:"));
+ printf (" %s\n", _("PROCS - number of processes (default)"));
+ printf (" %s\n", _("VSZ - virtual memory size"));
+ printf (" %s\n", _("RSS - resident set memory size"));
+ printf (" %s\n", _("CPU - percentage CPU"));
/* only linux etime is support currently */
#if defined( __linux__ )
- printf(_("\
- ELAPSED - time elapsed in seconds\n"));
+ printf (" %s\n", _("ELAPSED - time elapsed in seconds"));
#endif /* defined(__linux__) */
- printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
-
- printf(_("\
- -v, --verbose\n\
- Extra information. Up to 3 verbosity levels\n"));
-
- printf(_("\n\
-Optional Filters:\n\
- -s, --state=STATUSFLAGS\n\
- Only scan for processes that have, in the output of `ps`, one or\n\
- more of the status flags you specify (for example R, Z, S, RS,\n\
- RSZDT, plus others based on the output of your 'ps' command).\n\
- -p, --ppid=PPID\n\
- Only scan for children of the parent process ID indicated.\n\
- -z, --vsz=VSZ\n\
- Only scan for processes with vsz higher than indicated.\n\
- -r, --rss=RSS\n\
- Only scan for processes with rss higher than indicated.\n"));
-
- printf(_("\
- -P, --pcpu=PCPU\n\
- Only scan for processes with pcpu higher than indicated.\n\
- -u, --user=USER\n\
- Only scan for processes with user name or ID indicated.\n\
- -a, --argument-array=STRING\n\
- Only scan for processes with args that contain STRING.\n\
- -C, --command=COMMAND\n\
- Only scan for exact matches of COMMAND (without path).\n"));
+ printf (UT_TIMEOUT, DEFAULT_SOCKET_TIMEOUT);
+
+ printf (" %s\n", "-v, --verbose");
+ printf (" %s\n", _("Extra information. Up to 3 verbosity levels"));
+
+ printf ("\n");
+ printf ("%s\n", "Filters:");
+ printf (" %s\n", "-s, --state=STATUSFLAGS");
+ printf (" %s\n", _("Only scan for processes that have, in the output of `ps`, one or"));
+ printf (" %s\n", _("more of the status flags you specify (for example R, Z, S, RS,"));
+ printf (" %s\n", _("RSZDT, plus others based on the output of your 'ps' command)."));
+ printf (" %s\n", "-p, --ppid=PPID");
+ printf (" %s\n", _("Only scan for children of the parent process ID indicated."));
+ printf (" %s\n", "-z, --vsz=VSZ");
+ printf (" %s\n", _("Only scan for processes with VSZ higher than indicated."));
+ printf (" %s\n", "-r, --rss=RSS");
+ printf (" %s\n", _("Only scan for processes with RSS higher than indicated."));
+ printf (" %s\n", "-P, --pcpu=PCPU");
+ printf (" %s\n", _("Only scan for processes with PCPU higher than indicated."));
+ printf (" %s\n", "-u, --user=USER");
+ printf (" %s\n", _("Only scan for processes with user name or ID indicated."));
+ printf (" %s\n", "-a, --argument-array=STRING");
+ printf (" %s\n", _("Only scan for processes with args that contain STRING."));
+ printf (" %s\n", "--ereg-argument-array=STRING");
+ printf (" %s\n", _("Only scan for processes with args that contain the regex STRING."));
+ printf (" %s\n", "-C, --command=COMMAND");
+ printf (" %s\n", _("Only scan for exact matches of COMMAND (without path)."));
printf(_("\n\
RANGEs are specified 'min:max' or 'min:' or ':max' (or 'max'). If\n\
process owner, parent process PID, current state (e.g., 'Z'), or may\n\
be the total number of running processes\n\n"));
- printf(_("\
-Examples:\n\
- check_procs -w 2:2 -c 2:1024 -C portsentry\n\
- Warning if not two processes with command name portsentry. Critical\n\
- if < 2 or > 1024 processes\n\n\
- check_procs -w 10 -a '/usr/local/bin/perl' -u root\n\
- Warning alert if > 10 processes with command arguments containing \n\
- '/usr/local/bin/perl' and owned by root\n\n\
- check_procs -w 50000 -c 100000 --metric=VSZ\n\
- Alert if vsz of any processes over 50K or 100K\n\
- check_procs -w 10 -c 20 --metric=CPU\n\
- Alert if cpu of any processes over 10%% or 20%%\n\n"));
-
- printf (_(UT_SUPPORT));
+ printf ("%s\n", _("Examples:"));
+ printf (" %s\n", "check_procs -w 2:2 -c 2:1024 -C portsentry");
+ printf (" %s\n", _("Warning if not two processes with command name portsentry."));
+ printf (" %s\n\n", _("Critical if < 2 or > 1024 processes"));
+ printf (" %s\n", "check_procs -w 10 -a '/usr/local/bin/perl' -u root");
+ printf (" %s\n", _("Warning alert if > 10 processes with command arguments containing"));
+ printf (" %s\n\n", _("'/usr/local/bin/perl' and owned by root"));
+ printf (" %s\n", "check_procs -w 50000 -c 100000 --metric=VSZ");
+ printf (" %s\n\n", _("Alert if VSZ of any processes over 50K or 100K"));
+ printf (" %s\n", "check_procs -w 10 -c 20 --metric=CPU");
+ printf (" %s\n", _("Alert if CPU of any processes over 10%% or 20%%"));
+
+ printf (UT_SUPPORT);
}
void
print_usage (void)
{
- printf ("\
-Usage: %s -w <range> -c <range> [-m metric] [-s state] [-p ppid]\n\
- [-u user] [-r rss] [-z vsz] [-P %%cpu] [-a argument-array]\n\
- [-C command] [-t timeout] [-v]\n", progname);
+ printf ("%s\n", _("Usage:"));
+ printf ("%s -w <range> -c <range> [-m metric] [-s state] [-p ppid]\n", progname);
+ printf (" [-u user] [-r rss] [-z vsz] [-P %%cpu] [-a argument-array]\n");
+ printf (" [-C command] [-t timeout] [-v]\n");
}