From 0b6423f9c99d9edf8c96fefd0f6c453859395aa1 Mon Sep 17 00:00:00 2001 From: Holger Weiss Date: Mon, 30 Sep 2013 00:03:24 +0200 Subject: Import Nagios Plugins site Import the Nagios Plugins web site, Cronjobs, infrastructure scripts, and configuration files. --- web/attachments/226292-check_by_ssh.c | 388 ++++++++++++++++++++++++++++++++++ 1 file changed, 388 insertions(+) create mode 100644 web/attachments/226292-check_by_ssh.c (limited to 'web/attachments/226292-check_by_ssh.c') diff --git a/web/attachments/226292-check_by_ssh.c b/web/attachments/226292-check_by_ssh.c new file mode 100644 index 0000000..237d5b6 --- /dev/null +++ b/web/attachments/226292-check_by_ssh.c @@ -0,0 +1,388 @@ +/****************************************************************************** +* +* Nagios check_by_ssh plugin +* +* License: GPL +* Copyright (c) 1999-2006 nagios-plugins team +* +* Last Modified: $Date: 2007/01/28 21:46:40 $ +* +* Description: +* +* This file contains the check_by_ssh plugin +* +* License Information: +* +* 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: check_by_ssh.c,v 1.41 2007/01/28 21:46:40 hweiss Exp $ +* +******************************************************************************/ + +const char *progname = "check_by_ssh"; +const char *revision = "$Revision: 1.41 $"; +const char *copyright = "2000-2006"; +const char *email = "nagiosplug-devel@lists.sourceforge.net"; + +#include "common.h" +#include "netutils.h" +#include "utils.h" +#include "runcmd.h" + +int process_arguments (int, char **); +int validate_arguments (void); +void print_help (void); +void print_usage (void); + +int commands = 0; +int services = 0; +int skip = 0; +char *remotecmd = NULL; +char *comm = NULL; +char *hostname = NULL; +char *outputfile = NULL; +char *host_shortname = NULL; +char **service; +int passive = FALSE; +int verbose = FALSE; + +int +main (int argc, char **argv) +{ + + char *status_text; + int cresult; + int result = STATE_UNKNOWN; + int i; + time_t local_time; + FILE *fp = NULL; + struct output chld_out, chld_err; + + remotecmd = ""; + comm = strdup (SSH_COMMAND); + + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); + + /* process arguments */ + if (process_arguments (argc, argv) == ERROR) + usage_va(_("Could not parse arguments")); + + /* Set signal handling and alarm timeout */ + if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) { + usage_va(_("Cannot catch SIGALRM")); + } + alarm (timeout_interval); + + /* run the command */ + if (verbose) + printf ("%s\n", comm); + + result = np_runcmd(comm, &chld_out, &chld_err, 0); + /* UNKNOWN if output found on stderr */ + if(chld_err.buflen && !skip) { + printf(_("Remote command execution failed: %s\n"), + chld_err.buflen ? chld_err.buf : _("Unknown error")); + return STATE_UNKNOWN; + } + + /* this is simple if we're not supposed to be passive. + * Wrap up quickly and keep the tricks below */ + if(!passive) { + printf ("%s\n", skip < chld_out.lines ? chld_out.line[skip] : chld_out.buf); + return result; /* return error status from remote command */ + } + + + /* + * Passive mode + */ + + /* process output */ + if (!(fp = fopen (outputfile, "a"))) { + printf (_("SSH WARNING: could not open %s\n"), outputfile); + exit (STATE_UNKNOWN); + } + + local_time = time (NULL); + commands = 0; + for(i = skip; chld_out.line[i]; i++) { + status_text = strstr (chld_out.line[i], "STATUS CODE: "); + if (status_text == NULL) { + printf ("%s", chld_out.line[i]); + return result; + } + if (service[commands] && status_text + && sscanf (status_text, "STATUS CODE: %d", &cresult) == 1) + { + fprintf (fp, "[%d] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n", + (int) local_time, host_shortname, service[commands++], + cresult, chld_out.line[i]); + } + } + + /* force an OK state */ + return result; +} + +/* process command-line arguments */ +int +process_arguments (int argc, char **argv) +{ + int c; + char *p1, *p2; + + int option = 0; + static struct option longopts[] = { + {"version", no_argument, 0, 'V'}, + {"help", no_argument, 0, 'h'}, + {"verbose", no_argument, 0, 'v'}, + {"fork", no_argument, 0, 'f'}, + {"timeout", required_argument, 0, 't'}, + {"host", required_argument, 0, 'H'}, + {"port", required_argument,0,'p'}, + {"output", required_argument, 0, 'O'}, + {"name", required_argument, 0, 'n'}, + {"services", required_argument, 0, 's'}, + {"identity", required_argument, 0, 'i'}, + {"user", required_argument, 0, 'u'}, + {"logname", required_argument, 0, 'l'}, + {"command", required_argument, 0, 'C'}, + {"skip", required_argument, 0, 'S'}, + {"proto1", no_argument, 0, '1'}, + {"proto2", no_argument, 0, '2'}, + {"use-ipv4", no_argument, 0, '4'}, + {"use-ipv6", no_argument, 0, '6'}, + {"ssh-option", required_argument, 0, 'o'}, + {"quiet", no_argument, 0, 'q'}, + {0, 0, 0, 0} + }; + + if (argc < 2) + return ERROR; + + for (c = 1; c < argc; c++) + if (strcmp ("-to", argv[c]) == 0) + strcpy (argv[c], "-t"); + + while (1) { + c = getopt_long (argc, argv, "Vvh1246fqt:H:O:p:i:u:l:C:S:n:s:o:", longopts, + &option); + + if (c == -1 || c == EOF) + break; + + switch (c) { + case 'V': /* version */ + print_revision (progname, revision); + exit (STATE_OK); + case 'h': /* help */ + print_help (); + exit (STATE_OK); + case 'v': /* help */ + verbose = TRUE; + break; + case 't': /* timeout period */ + if (!is_integer (optarg)) + usage_va(_("Timeout interval must be a positive integer")); + else + timeout_interval = atoi (optarg); + break; + case 'H': /* host */ + host_or_die(optarg); + hostname = optarg; + break; + case 'p': /* port number */ + if (!is_integer (optarg)) + usage_va(_("Port must be a positive integer")); + asprintf (&comm,"%s -p %s", comm, optarg); + break; + case 'O': /* output file */ + outputfile = optarg; + passive = TRUE; + break; + case 's': /* description of service to check */ + p1 = optarg; + service = realloc (service, (++services) * sizeof(char *)); + while ((p2 = index (p1, ':'))) { + *p2 = '\0'; + service[services - 1] = p1; + service = realloc (service, (++services) * sizeof(char *)); + p1 = p2 + 1; + } + service[services - 1] = p1; + break; + case 'n': /* short name of host in nagios configuration */ + host_shortname = optarg; + break; + + case 'u': + c = 'l'; + case 'l': /* login name */ + case 'i': /* identity */ + asprintf (&comm, "%s -%c %s", comm, c, optarg); + break; + + case '1': /* Pass these switches directly to ssh */ + case '2': /* 1 to force version 1, 2 to force version 2 */ + case '4': /* -4 for IPv4 */ + case '6': /* -6 for IPv6 */ + case 'f': /* fork to background */ + asprintf (&comm, "%s -%c", comm, c); + break; + case 'C': /* Command for remote machine */ + commands++; + if (commands > 1) + asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd); + asprintf (&remotecmd, "%s%s", remotecmd, optarg); + break; + case 'S': /* Skip n lines in the output to ignore system banner */ + if (!is_integer (optarg)) + usage_va(_("skip lines must be an integer")); + else + skip = atoi (optarg); + break; + case 'o': /* Extra options for the ssh command */ + asprintf (&comm, "%s -%c '%s'", comm, c, optarg); + break; + case 'q': /* Tell the ssh command to be quiet */ + asprintf (&comm, "%s -%c", comm, c); + break; + default: /* help */ + usage5(); + } + } + + c = optind; + if (hostname == NULL) { + if (c <= argc) { + die (STATE_UNKNOWN, _("%s: You must provide a host name\n"), progname); + } + host_or_die(argv[c]); + hostname = argv[c++]; + } + + if (strlen(remotecmd) == 0) { + for (; c < argc; c++) + if (strlen(remotecmd) > 0) + asprintf (&remotecmd, "%s %s", remotecmd, argv[c]); + else + asprintf (&remotecmd, "%s", argv[c]); + } + + if (commands > 1) + asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd); + + if (remotecmd == NULL || strlen (remotecmd) <= 1) + usage_va(_("No remotecmd")); + + asprintf (&comm, "%s %s '%s'", comm, hostname, remotecmd); + + return validate_arguments (); +} + + + +int +validate_arguments (void) +{ + if (remotecmd == NULL || hostname == NULL) + return ERROR; + + if (passive && commands != services) + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide a service name for each command.\n"), progname); + + if (passive && host_shortname == NULL) + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide the host short name from the nagios configs.\n"), progname); + + return OK; +} + + +void +print_help (void) +{ + print_revision (progname, revision); + + printf ("Copyright (c) 1999 Karl DeBisschop \n"); + printf (COPYRIGHT, copyright, email); + + printf (_("This plugin uses SSH to execute commands on a remote host")); + + printf ("\n\n"); + + print_usage (); + + printf (_(UT_HELP_VRSN)); + + printf (_(UT_HOST_PORT), 'p', "none"); + + printf (_(UT_IPv46)); + + printf (" %s\n", "-1, --proto1"); + printf (" %s\n", _("tell ssh to use Protocol 1")); + printf (" %s\n", "-2, --proto2"); + printf (" %s\n", _("tell ssh to use Protocol 2")); + printf (" %s\n", "-S, --skip=n"); + printf (" %s\n", _("Ignore first n lines on STDERR (to suppress a logon banner)")); + printf (" %s\n", "-f"); + printf (" %s\n", _("tells ssh to fork rather than create a tty")); + printf (" %s\n","-C, --command='COMMAND STRING'"); + printf (" %s\n", _("command to execute on the remote machine")); + printf (" %s\n","-l, --logname=USERNAME"); + printf (" %s\n", _("SSH user name on remote host [optional]")); + printf (" %s\n","-i, --identity=KEYFILE"); + printf (" %s\n", _("identity of an authorized key [optional]")); + printf (" %s\n","-O, --output=FILE"); + printf (" %s\n", _("external command file for nagios [optional]")); + printf (" %s\n","-s, --services=LIST"); + printf (" %s\n", _("list of nagios service names, separated by ':' [optional]")); + printf (" %s\n","-n, --name=NAME"); + printf (" %s\n", _("short name of host in nagios configuration [optional]")); + printf (" %s\n","-o, --ssh-option=OPTION"); + printf (" %s\n", _("Call ssh with '-o OPTION' (may be used multiple times) [optional]")); + printf (" %s\n","-q, --quiet"); + printf (" %s\n", _("Tell ssh to suppress warning and diagnostic messages [optional]")); + printf (_(UT_WARN_CRIT)); + printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT); + printf (" %s\n", _("The most common mode of use is to refer to a local identity file with")); + printf (" %s\n", _("the '-i' option. In this mode, the identity pair should have a null")); + printf (" %s\n", _("passphrase and the public key should be listed in the authorized_keys")); + printf (" %s\n", _("file of the remote host. Usually the key will be restricted to running")); + printf (" %s\n", _("only one command on the remote server. If the remote SSH server tracks")); + printf (" %s\n", _("invocation arguments, the one remote program may be an agent that can")); + printf (" %s\n", _("execute additional commands as proxy")); + printf (" %s\n", _("To use passive mode, provide multiple '-C' options, and provide")); + printf (" %s\n", _("all of -O, -s, and -n options (servicelist order must match '-C'options)")); + printf ("\n"); + printf ("%s\n", _("Examples:")); + printf (" %s\n", "$ check_by_ssh -H localhost -n lh -s c1:c2:c3 -C uptime -C uptime -C uptime -O /tmp/foo"); + printf (" %s\n", "$ cat /tmp/foo"); + printf (" %s\n", "[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c1;0; up 2 days"); + printf (" %s\n", "[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c2;0; up 2 days"); + printf (" %s\n", "[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c3;0; up 2 days"); + printf (_(UT_SUPPORT)); +} + + + +void +print_usage (void) +{ + printf (_("Usage:")); + printf(" %s [-fq46] [-t timeout] [-i identity] [-l user] -H -C ",progname); + printf(" [-n name] [-s servicelist] [-O outputfile] [-p port] [-o ssh-option]\n"); +} -- cgit v1.2.3-74-g34f1