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https://github.com/monitoring-plugins/monitoring-plugins.git
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comment/doco cleanup for embeeded doc work, control STMP command via options instead of defines
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@407 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Karl DeBisschop
parent
8913862c50
commit
5646ca9d05
1 changed files with 98 additions and 81 deletions
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@ -1,23 +1,5 @@
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/******************************************************************************
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*
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* CHECK_SMTP.C
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*
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* Program: SMTP plugin for Nagios
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* License: GPL
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* Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
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*
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* $Id$
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*
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* Description:
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*
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* This plugin will attempt to open an SMTP connection with the host.
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* Successul connects return STATE_OK, refusals and timeouts return
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* STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful
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* connects, but incorrect reponse messages from the host result in
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* STATE_WARNING return values.
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*
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* License Information:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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@ -34,32 +16,64 @@
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*
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*****************************************************************************/
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const char *progname = "check_smtp";
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const char *revision = "$Revision$";
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const char *copyright = "1999-2003";
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const char *authors = "Nagios Plugin Development Team";
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const char *email = "nagiosplug-devel@lists.sourceforge.net";
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const char *summary = "\
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This plugin will attempt to open an SMTP connection with the host.\n";
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const char *description = "\
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Successul connects return STATE_OK, refusals and timeouts return\n\
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STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful\n\
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connects, but incorrect reponse messages from the host result in\n\
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STATE_WARNING return values.\n";
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const char *option_summary = "\
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-H host [-p port] [-e expect] [-C command] [-f from addr]
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[-w warn] [-c crit] [-t timeout] [-n] [-v]";
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const char *options = "\
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-H, --hostname=STRING or IPADDRESS\n\
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Check server on the indicated host\n\
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-p, --port=INTEGER\n\
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Make connection on the indicated port (default: %d)\n\
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-e, --expect=STRING\n\
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String to expect in first line of server response (default: '%s')\n\
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-n, nocommand\n\
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Suppress SMTP command\n\
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-C, --command=STRING\n\
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SMTP command (default: '%s')\n\
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-f, --from=STRING\n\
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FROM-address to include in MAIL command, required by Exchange 2000\n\
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(default: '%s')\n\
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-w, --warning=INTEGER\n\
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Seconds necessary to result in a warning status\n\
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-c, --critical=INTEGER\n\
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Seconds necessary to result in a critical status\n\
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-t, --timeout=INTEGER\n\
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Seconds before connection attempt times out (default: %d)\n\
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-v, --verbose\n\
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Print extra information (command-line use only)\n\
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-h, --help\n\
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Print detailed help screen\n\
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-V, --version\n\
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Print version information\n\n";
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enum {
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SMTP_PORT = 25
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};
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const char *SMTP_EXPECT = "220";
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const char *SMTP_HELO = "HELO ";
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const char *SMTP_QUIT = "QUIT\r\n";
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#include "config.h"
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#include "common.h"
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#include "netutils.h"
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#include "utils.h"
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const char *progname = "check_smtp";
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#define SMTP_PORT 25
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#define SMTP_EXPECT "220"
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#define SMTP_HELO "HELO "
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/* sendmail will syslog a "NOQUEUE" error if session does not attempt
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* to do something useful. This can be prevented by giving a command
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* even if syntax is illegal (MAIL requires a FROM:<...> argument)
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* You can disable sending DUMMYCMD by undefining SMTP_USE_DUMMYCMD.
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*
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* According to rfc821 you can include a null reversepath in the from command
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* - but a log message is generated on the smtp server.
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*
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* Use the -f option to provide a FROM address
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*/
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#define SMTP_DUMMYCMD "MAIL "
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#define SMTP_USE_DUMMYCMD 1
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#define SMTP_QUIT "QUIT\r\n"
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int process_arguments (int, char **);
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int validate_arguments (void);
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void print_help (void);
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@ -68,6 +82,8 @@ void print_usage (void);
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int server_port = SMTP_PORT;
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char *server_address = NULL;
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char *server_expect = NULL;
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int smtp_use_dummycmd = 1;
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char *mail_command = "MAIL ";
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char *from_arg = " ";
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int warning_time = 0;
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int check_warning_time = FALSE;
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@ -98,7 +114,7 @@ main (int argc, char **argv)
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asprintf (&helocmd, "%s%s%s", SMTP_HELO, helocmd, "\r\n");
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/* initialize the MAIL command with optional FROM command */
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asprintf (&from_str, "%sFROM: %s%s", SMTP_DUMMYCMD, from_arg, "\r\n");
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asprintf (&from_str, "%sFROM: %s%s", mail_command, from_arg, "\r\n");
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if (verbose)
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printf ("FROMCMD: %s\n", from_str);
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@ -144,15 +160,27 @@ main (int argc, char **argv)
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/* allow for response to helo command to reach us */
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recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
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#ifdef SMTP_USE_DUMMYCMD
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send(sd, from_str, strlen(from_str), 0);
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/* sendmail will syslog a "NOQUEUE" error if session does not attempt
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* to do something useful. This can be prevented by giving a command
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* even if syntax is illegal (MAIL requires a FROM:<...> argument)
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*
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* According to rfc821 you can include a null reversepath in the from command
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* - but a log message is generated on the smtp server.
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*
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* You can disable sending mail_command with '--nocommand'
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* Use the -f option to provide a FROM address
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*/
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if (smtp_use_dummycmd) {
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/* allow for response to DUMMYCMD to reach us */
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recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
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send(sd, from_str, strlen(from_str), 0);
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if (verbose)
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printf("DUMMYCMD: %s\n%s\n",from_str,buffer);
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#endif /* SMTP_USE_DUMMYCMD */
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/* allow for response to mail_command to reach us */
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recv(sd, buffer, MAX_INPUT_BUFFER-1, 0);
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if (verbose)
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printf("DUMMYCMD: %s\n%s\n",from_str,buffer);
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} /* smtp_use_dummycmd */
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/* tell the server we're done */
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send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0);
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@ -198,8 +226,11 @@ process_arguments (int argc, char **argv)
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{"expect", required_argument, 0, 'e'},
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{"critical", required_argument, 0, 'c'},
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{"warning", required_argument, 0, 'w'},
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{"timeout", required_argument, 0, 't'},
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{"port", required_argument, 0, 'p'},
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{"from", required_argument, 0, 'f'},
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{"command", required_argument, 0, 'C'},
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{"nocommand", required_argument, 0, 'n'},
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{"verbose", no_argument, 0, 'v'},
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{"version", no_argument, 0, 'V'},
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{"help", no_argument, 0, 'h'},
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@ -219,8 +250,8 @@ process_arguments (int argc, char **argv)
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}
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while (1) {
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c = getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:", long_options,
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&option_index);
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c = getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:C:",
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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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@ -248,6 +279,13 @@ process_arguments (int argc, char **argv)
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case 'e': /* server expect string on 220 */
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server_expect = optarg;
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break;
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case 'C': /* server expect string on 220 */
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mail_command = optarg;
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smtp_use_dummycmd = 1;
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break;
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case 'n': /* server expect string on 220 */
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smtp_use_dummycmd = 0;
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break;
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case 'c': /* critical time threshold */
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if (is_intnonneg (optarg)) {
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critical_time = atoi (optarg);
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@ -278,7 +316,7 @@ process_arguments (int argc, char **argv)
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}
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break;
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case 'V': /* version */
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print_revision (progname, "$Revision$");
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print_revision (progname, revision);
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exit (STATE_OK);
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case 'h': /* help */
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print_help ();
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@ -324,34 +362,13 @@ validate_arguments (void)
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void
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print_help (void)
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{
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print_revision (progname, "$Revision$");
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printf
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("Copyright (c) 2000 Ethan Galstad/Karl DeBisschop\n\n"
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"This plugin test the SMTP service on the specified host.\n\n");
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print_revision (progname, revision);
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printf ("Copyright (c) %s %s\n\t<%s>\n\n%s\n",
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copyright, authors, email, summary);
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print_usage ();
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printf
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("\nOptions:\n"
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" -H, --hostname=STRING or IPADDRESS\n"
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" Check server on the indicated host\n"
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" -p, --port=INTEGER\n"
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" Make connection on the indicated port (default: %d)\n"
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" -e, --expect=STRING\n"
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" String to expect in first line of server response (default: %s)\n"
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" -f, --from=STRING\n"
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" from address to include in MAIL command (default NULL, Exchange2000 requires one)\n"
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" -w, --warning=INTEGER\n"
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" Seconds necessary to result in a warning status\n"
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" -c, --critical=INTEGER\n"
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" Seconds necessary to result in a critical status\n"
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" -t, --timeout=INTEGER\n"
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" Seconds before connection attempt times out (default: %d)\n"
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" -v, --verbose\n"
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" Print extra information (command-line use only)\n"
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" -h, --help\n"
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" Print detailed help screen\n"
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" -V, --version\n"
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" Print version information\n\n",
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SMTP_PORT, SMTP_EXPECT, DEFAULT_SOCKET_TIMEOUT);
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printf ("\nOptions:\n");
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printf (options, SMTP_PORT, SMTP_EXPECT, mail_command, from_arg,
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DEFAULT_SOCKET_TIMEOUT);
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support ();
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}
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@ -362,8 +379,8 @@ print_help (void)
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void
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print_usage (void)
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{
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printf
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("Usage: %s -H host [-e expect] [-p port] [-f from addr] [-w warn] [-c crit] [-t timeout] [-v]\n"
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" %s --help\n"
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" %s --version\n", progname, progname, progname);
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printf ("Usage: %s %s\n"
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" %s --help\n"
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" %s --version\n",
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progname, option_summary, progname, progname);
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}
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