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@@ -39,11 +39,64 @@ const char *progname = "check_procs";
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#define COPYRIGHT "1999-2002"
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#define AUTHOR "Ethan Galstad"
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#define EMAIL "nagios@nagios.org"
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-#define SUMMARY "Check the number of currently running processes and generates WARNING or\n\
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-CRITICAL states if the process count is outside the specified threshold\n\
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-ranges. The process count can be filtered by process owner, parent process\n\
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-PID, current state (e.g., 'Z'), or may be the total number of running\n\
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-processes\n"
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+#define SUMMARY "\
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+Checks all processes and generates WARNING or CRITICAL states if the specified\n\
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+metric is outside the required threshold ranges. The metric defaults to number\n\
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+of processes. Search filters can be applied to limit the processes to check.\n"
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+
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+#define OPTIONS "\
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+-w <range> -c <range> [-m metric]\n\
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+ [-s state] [-p ppid] [-u user] [-r rss] [-z vsz] [-P %cpu]\n\
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+ [-a argument-array] [-C command] [-v]"
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+
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+#define LONGOPTIONS "\
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+Required Arguments:\n\
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+ -w, --warning=RANGE\n\
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+ Generate warning state if metric is outside this range\n\
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+ -c, --critical=RANGE\n\
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+ Generate critical state if metric is outside this range\n\
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+Optional Arguments:\n\
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+ -m, --metric=TYPE\n\
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+ Check thresholds against metric. Valid types:\n\
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+ PROCS - number of processes (default)\n\
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+ VSZ - virtual memory size\n\
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+ RSS - resident set memory size\n\
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+ CPU - percentage cpu\n\
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+ -v, --verbose\n\
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+ Extra information. Up to 3 verbosity levels\n\
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+Optional Filters:\n\
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+ -s, --state=STATUSFLAGS\n\
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+ Only scan for processes that have, in the output of `ps`, one or\n\
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+ more of the status flags you specify (for example R, Z, S, RS,\n\
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+ RSZDT, plus others based on the output of your 'ps' command).\n\
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+ -p, --ppid=PPID\n\
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+ Only scan for children of the parent process ID indicated.\n\
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+ -z, --vsz=VSZ\n\
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+ Only scan for processes with vsz higher than indicated.\n\
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+ -r, --rss=RSS\n\
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+ Only scan for processes with rss higher than indicated.\n\
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+ -P, --pcpu=PCPU\n\
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+ Only scan for processes with pcpu higher than indicated.\n\
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+ -u, --user=USER\n\
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+ Only scan for processes with user name or ID indicated.\n\
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+ -a, --argument-array=STRING\n\
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+ Only scan for ARGS that match up to the length of the given STRING.\n\
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+ -C, --command=COMMAND\n\
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+ Only scan for exact matches to the named COMMAND.\n\
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+\n\
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+RANGEs are specified 'min:max' or 'min:' or ':max' (or 'max'). If\n\
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+specified 'max:min', a warning status will be generated if the\n\
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+count is inside the specified range\n"
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+
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+#define EXAMPLES "\
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+ check_procs -w 2:2 -c 2:1024 -C portsentry\n\
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+ Warning if not two processes with command name portsentry. Critical\n\
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+ if < 2 or > 1024 processes\n\
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+ check_procs -w 10 -a '/usr/local/bin/perl' -u root\n\
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+ Warning alert if > 10 processes with command arguments containing \n\
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+ '/usr/local/bin/perl' and owned by root\n\
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+ check_procs -w 50000 -c 100000 --metric=VSZ\n\
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+ Alert if vsz of any processes over 50K or 100K\n"
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#include "config.h"
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#include <pwd.h>
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@@ -55,6 +108,7 @@ int process_arguments (int, char **);
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int validate_arguments (void);
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void print_usage (void);
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void print_help (void);
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+int check_thresholds (int);
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int wmax = -1;
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int cmax = -1;
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@@ -68,16 +122,30 @@ int options = 0; /* bitmask of filter criteria to test against */
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#define USER 8
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#define PROG 16
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#define ARGS 32
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-
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-int verbose = FALSE;
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+#define VSZ 64
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+#define RSS 128
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+#define PCPU 256
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+
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+/* Different metrics */
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+int metric = 0;
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+#define METRIC_PROCS 0
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+#define METRIC_VSZ 1
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+#define METRIC_RSS 2
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+#define METRIC_CPU 3
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+char *metric_name = "";
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+
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+int verbose = 0;
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int uid;
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int ppid;
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+int vsz;
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+int rss;
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+float pcpu;
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char *statopts = "";
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char *prog = "";
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char *args = "";
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char *fmt = "";
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+char *fails = "";
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char tmp[MAX_INPUT_BUFFER];
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-const char *zombie = "Z";
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int
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main (int argc, char **argv)
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@@ -86,24 +154,35 @@ main (int argc, char **argv)
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int procuid = 0;
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int procppid = 0;
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+ int procvsz = 0;
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+ int procrss = 0;
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+ float procpcpu = 0;
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char procstat[8];
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char procprog[MAX_INPUT_BUFFER];
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char *procargs;
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+ const char *zombie = "Z";
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+
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int resultsum = 0; /* bitmask of the filter criteria met by a process */
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int found = 0; /* counter for number of lines returned in `ps` output */
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int procs = 0; /* counter for number of processes meeting filter criteria */
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int pos; /* number of spaces before 'args' in `ps` output */
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int cols; /* number of columns in ps output */
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+ int warn = 0; /* number of processes in warn state */
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+ int crit = 0; /* number of processes in crit state */
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+ int i;
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int result = STATE_UNKNOWN;
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+ asprintf (&metric_name, "PROCS");
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+ metric = METRIC_PROCS;
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+
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if (process_arguments (argc, argv) == ERROR)
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usage ("Unable to parse command line\n");
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- /* run the command */
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- if (verbose)
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- printf ("%s\n", PS_COMMAND);
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+ if (verbose >= 2)
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+ printf ("CMD: %s\n", PS_COMMAND);
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+
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child_process = spopen (PS_COMMAND);
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if (child_process == NULL) {
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printf ("Could not open pipe: %s\n", PS_COMMAND);
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@@ -117,18 +196,22 @@ main (int argc, char **argv)
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fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
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while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
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+ strcpy(procprog,"");
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+ asprintf(&procargs,"");
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+
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cols = sscanf (input_buffer, PS_FORMAT, PS_VARLIST);
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/* Zombie processes do not give a procprog command */
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+ /* - would they give other columns? */
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if ( cols == 3 && strstr(procstat, zombie) ) {
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- strcpy(procprog, "");
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cols = 4;
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}
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- if ( cols >= 4 ) {
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+ if ( cols >= 7 ) {
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found++;
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resultsum = 0;
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asprintf (&procargs, "%s", input_buffer + pos);
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strip (procargs);
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+
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if ((options & STAT) && (strstr (statopts, procstat)))
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resultsum |= STAT;
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if ((options & ARGS) && procargs && (strstr (procargs, args) == procargs))
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@@ -139,16 +222,43 @@ main (int argc, char **argv)
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resultsum |= PPID;
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if ((options & USER) && (procuid == uid))
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resultsum |= USER;
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-#ifdef DEBUG1
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- if (procargs == NULL)
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- printf ("%d %d %d %s %s\n", procs, procuid, procppid, procstat,
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- procprog);
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- else
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- printf ("%d %d %d %s %s %s\n", procs, procuid, procppid, procstat,
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- procprog, procargs);
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-#endif
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- if (options == resultsum)
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- procs++;
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+ if ((options & VSZ) && (procvsz >= vsz))
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+ resultsum |= VSZ;
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+ if ((options & RSS) && (procrss >= rss))
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+ resultsum |= RSS;
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+ if ((options & PCPU) && (procpcpu >= pcpu))
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+ resultsum |= PCPU;
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+
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+ if (verbose >= 3)
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+ printf ("%d %d %d %d %d %.2f %s %s %s\n",
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+ procs, procuid, procvsz, procrss,
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+ procppid, procpcpu, procstat, procprog, procargs);
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+
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+ /* Next line if filters not matched */
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+ if (!(options == resultsum || options == ALL))
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+ continue;
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+
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+ procs++;
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+
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+ if (metric == METRIC_VSZ)
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+ i = check_thresholds (procvsz);
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+ else if (metric == METRIC_RSS)
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+ i = check_thresholds (procrss);
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+ /* TODO? float thresholds for --metric=CPU */
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+ else if (metric == METRIC_CPU)
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+ i = check_thresholds ((int)procpcpu);
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+
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+ if (metric != METRIC_PROCS) {
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+ if (i == STATE_WARNING) {
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+ warn++;
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+ asprintf (&fails, "%s%s%s", fails, (fails == "" ? "" : ", "), procprog);
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+ }
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+ if (i == STATE_CRITICAL) {
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+ crit++;
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+ asprintf (&fails, "%s%s%s", fails, (fails == "" ? "" : ", "), procprog);
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+ }
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+ result = max_state (result, i);
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+ }
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}
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/* This should not happen */
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else if (verbose) {
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@@ -172,65 +282,83 @@ main (int argc, char **argv)
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result = max_state (result, STATE_WARNING);
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}
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- if (options == ALL)
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- procs = found;
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-
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if (found == 0) { /* no process lines parsed so return STATE_UNKNOWN */
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printf ("Unable to read output\n");
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-
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return result;
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}
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- if (verbose && (options & STAT))
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- printf ("%s ", statopts);
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- if (verbose && (options & PROG))
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- printf ("%s ", prog);
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- if (verbose && (options & PPID))
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- printf ("%d ", ppid);
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- if (verbose && (options & USER))
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- printf ("%d ", uid);
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+ if ( result == STATE_UNKNOWN )
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+ result = STATE_OK;
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+
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+ /* Needed if procs found, but none match filter */
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+ if ( metric == METRIC_PROCS ) {
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+ result = max_state (result, check_thresholds (procs) );
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+ }
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+ if ( result == STATE_OK ) {
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+ printf ("%s OK: %d process%s",
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+ metric_name, procs, ( procs != 1 ? "es" : "") );
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+ } else if (result == STATE_WARNING) {
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+ if ( metric == METRIC_PROCS ) {
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+ printf ("PROCS WARNING: %d process%s", procs,
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+ ( procs != 1 ? "es" : ""));
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+ } else {
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+ printf ("%s WARNING: %d warn out of %d process%s",
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+ metric_name, warn, procs,
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+ ( procs != 1 ? "es" : ""));
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+ }
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+ } else if (result == STATE_CRITICAL) {
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+ if (metric == METRIC_PROCS) {
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+ printf ("PROCS CRITICAL: %d process%s", procs,
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+ ( procs != 1 ? "es" : ""));
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+ } else {
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+ printf ("%s CRITICAL: %d crit, %d warn out of %d process%s",
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+ metric_name, crit, warn, procs,
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+ ( procs != 1 ? "es" : ""));
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+ }
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+ }
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+
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+ if (fmt != "") {
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+ printf (" with %s", fmt);
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+ }
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+
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+ if ( verbose >= 1 && fails != "" )
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+ printf (" [%s]", fails);
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+
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+ printf ("\n");
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+ return result;
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+}
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+
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+/* Check thresholds against value */
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+int
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+check_thresholds (int value)
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+{
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if (wmax == -1 && cmax == -1 && wmin == -1 && cmin == -1) {
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- if (result == STATE_UNKNOWN)
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- result = STATE_OK;
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- printf (fmt, "OK", procs);
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- return result;
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+ return OK;
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}
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else if (cmax >= 0 && cmin >= 0 && cmax < cmin) {
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- if (procs > cmax && procs < cmin) {
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- printf (fmt, "CRITICAL", procs);
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+ if (value > cmax && value < cmin)
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return STATE_CRITICAL;
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- }
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}
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- else if (cmax >= 0 && procs > cmax) {
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- printf (fmt, "CRITICAL", procs);
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+ else if (cmax >= 0 && value > cmax) {
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return STATE_CRITICAL;
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}
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- else if (cmin >= 0 && procs < cmin) {
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- printf (fmt, "CRITICAL", procs);
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+ else if (cmin >= 0 && value < cmin) {
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return STATE_CRITICAL;
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}
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if (wmax >= 0 && wmin >= 0 && wmax < wmin) {
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- if (procs > wmax && procs < wmin) {
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- printf (fmt, "CRITICAL", procs);
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- return STATE_CRITICAL;
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+ if (value > wmax && value < wmin) {
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+ return STATE_WARNING;
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}
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}
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- else if (wmax >= 0 && procs > wmax) {
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- printf (fmt, "WARNING", procs);
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- return max_state (result, STATE_WARNING);
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+ else if (wmax >= 0 && value > wmax) {
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+ return STATE_WARNING;
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}
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- else if (wmin >= 0 && procs < wmin) {
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- printf (fmt, "WARNING", procs);
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- return max_state (result, STATE_WARNING);
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- }
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-
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- printf (fmt, "OK", procs);
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- if ( result == STATE_UNKNOWN ) {
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- result = STATE_OK;
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+ else if (wmin >= 0 && value < wmin) {
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+ return STATE_WARNING;
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}
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- return result;
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+ return STATE_OK;
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}
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/* process command-line arguments */
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@@ -244,10 +372,14 @@ process_arguments (int argc, char **argv)
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static struct option long_options[] = {
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{"warning", required_argument, 0, 'w'},
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{"critical", required_argument, 0, 'c'},
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+ {"metric", required_argument, 0, 'm'},
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{"timeout", required_argument, 0, 't'},
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{"status", required_argument, 0, 's'},
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{"ppid", required_argument, 0, 'p'},
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{"command", required_argument, 0, 'C'},
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+ {"vsz", required_argument, 0, 'z'},
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+ {"rss", required_argument, 0, 'r'},
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+ {"pcpu", required_argument, 0, 'P'},
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{"argument-array", required_argument, 0, 'a'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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@@ -260,7 +392,8 @@ process_arguments (int argc, char **argv)
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strcpy (argv[c], "-t");
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while (1) {
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- c = getopt_long (argc, argv, "Vvht:c:w:p:s:u:C:a:", long_options, &option_index);
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+ c = getopt_long (argc, argv, "Vvht:c:w:p:s:u:C:a:z:r:m:P:",
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+ long_options, &option_index);
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if (c == -1 || c == EOF)
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break;
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@@ -368,17 +501,70 @@ process_arguments (int argc, char **argv)
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break;
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case 'C': /* command */
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asprintf (&prog, "%s", optarg);
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- asprintf (&fmt, "%s%scommand name %s", fmt, (options ? ", " : ""),
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+ asprintf (&fmt, "%s%scommand name '%s'", fmt, (options ? ", " : ""),
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prog);
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options |= PROG;
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break;
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case 'a': /* args (full path name with args) */
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asprintf (&args, "%s", optarg);
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- asprintf (&fmt, "%s%sargs %s", fmt, (options ? ", " : ""), args);
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+ asprintf (&fmt, "%s%sargs '%s'", fmt, (options ? ", " : ""), args);
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options |= ARGS;
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break;
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+ case 'r': /* RSS */
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+ if (sscanf (optarg, "%d%[^0-9]", &rss, tmp) == 1) {
|
|
|
+ asprintf (&fmt, "%s%sRSS >= %d", fmt, (options ? ", " : ""), rss);
|
|
|
+ options |= RSS;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ printf ("%s: RSS must be an integer!\n\n",
|
|
|
+ progname);
|
|
|
+ print_usage ();
|
|
|
+ exit (STATE_UNKNOWN);
|
|
|
+ case 'z': /* VSZ */
|
|
|
+ if (sscanf (optarg, "%d%[^0-9]", &vsz, tmp) == 1) {
|
|
|
+ asprintf (&fmt, "%s%sVSZ >= %d", fmt, (options ? ", " : ""), vsz);
|
|
|
+ options |= VSZ;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ printf ("%s: VSZ must be an integer!\n\n",
|
|
|
+ progname);
|
|
|
+ print_usage ();
|
|
|
+ exit (STATE_UNKNOWN);
|
|
|
+ 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, (options ? ", " : ""), pcpu);
|
|
|
+ options |= PCPU;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ printf ("%s: PCPU must be a float!\n\n",
|
|
|
+ progname);
|
|
|
+ print_usage ();
|
|
|
+ exit (STATE_UNKNOWN);
|
|
|
+ case 'm':
|
|
|
+ asprintf (&metric_name, "%s", optarg);
|
|
|
+ if ( strcmp(optarg, "PROCS") == 0) {
|
|
|
+ metric = METRIC_PROCS;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ else if ( strcmp(optarg, "VSZ") == 0) {
|
|
|
+ metric = METRIC_VSZ;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ else if ( strcmp(optarg, "RSS") == 0 ) {
|
|
|
+ metric = METRIC_RSS;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ else if ( strcmp(optarg, "CPU") == 0 ) {
|
|
|
+ metric = METRIC_CPU;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ printf ("%s: metric must be one of PROCS, VSZ, RSS, CPU!\n\n",
|
|
|
+ progname);
|
|
|
+ print_usage ();
|
|
|
+ exit (STATE_UNKNOWN);
|
|
|
case 'v': /* command */
|
|
|
- verbose = TRUE;
|
|
|
+ verbose++;
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
@@ -402,7 +588,7 @@ int
|
|
|
validate_arguments ()
|
|
|
{
|
|
|
|
|
|
-if (wmax >= 0 && wmin == -1)
|
|
|
+ if (wmax >= 0 && wmin == -1)
|
|
|
wmin = 0;
|
|
|
if (cmax >= 0 && cmin == -1)
|
|
|
cmin = 0;
|
|
|
@@ -422,13 +608,8 @@ if (wmax >= 0 && wmin == -1)
|
|
|
/* return ERROR; */
|
|
|
/* } */
|
|
|
|
|
|
- if (options == 0) {
|
|
|
- options = 1;
|
|
|
- asprintf (&fmt, "%%s - %%d processes running\n");
|
|
|
- }
|
|
|
- else {
|
|
|
- asprintf (&fmt, "%%s - %%d processes running with %s\n", fmt);
|
|
|
- }
|
|
|
+ if (options == 0)
|
|
|
+ options = ALL;
|
|
|
|
|
|
return options;
|
|
|
}
|
|
|
@@ -442,37 +623,14 @@ print_help (void)
|
|
|
("Copyright (c) %s %s <%s>\n\n%s\n",
|
|
|
COPYRIGHT, AUTHOR, EMAIL, SUMMARY);
|
|
|
print_usage ();
|
|
|
- printf
|
|
|
- ("\nRequired Arguments:\n"
|
|
|
- " -w, --warning=RANGE\n"
|
|
|
- " generate warning state if process count is outside this range\n"
|
|
|
- " -c, --critical=RANGE\n"
|
|
|
- " generate critical state if process count is outside this range\n\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"
|
|
|
- " -u, --user=USER\n"
|
|
|
- " Only scan for proceses with user name or ID indicated.\n"
|
|
|
- " -a, --argument-array=STRING\n"
|
|
|
- " Only scan for ARGS that match up to the length of the given STRING\n"
|
|
|
- " -C, --command=COMMAND\n"
|
|
|
- " Only scan for exact matches to the named COMMAND.\n\n"
|
|
|
- "RANGEs are specified 'min:max' or 'min:' or ':max' (or 'max'). If\n"
|
|
|
- "specified 'max:min', a warning status will be generated if the\n"
|
|
|
-
|
|
|
- "count is inside the specified range\n");}
|
|
|
-
|
|
|
+ printf ("\nOptions:\n" LONGOPTIONS "\nExamples:\n" EXAMPLES "\n");
|
|
|
+}
|
|
|
|
|
|
void
|
|
|
print_usage (void)
|
|
|
{
|
|
|
- printf
|
|
|
- ("Usage:\n"
|
|
|
- " check_procs -w <range> -c <range> [-s state] [-p ppid] [-u user]\n"
|
|
|
- " [-a argument-array] [-C command]\n"
|
|
|
- " check_procs --version\n" " check_procs --help\n");
|
|
|
+ printf ("Usage:\n" " %s %s\n"
|
|
|
+ " %s (-h | --help) for detailed help\n"
|
|
|
+ " %s (-V | --version) for version information\n",
|
|
|
+ progname, OPTIONS, progname, progname);
|
|
|
}
|
Ton Voon