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author | Karl DeBisschop <kdebisschop@users.sourceforge.net> | 2003-03-12 06:41:33 +0000 |
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committer | Karl DeBisschop <kdebisschop@users.sourceforge.net> | 2003-03-12 06:41:33 +0000 |
commit | 5646ca9d05c1e8a3e6d7381a4d07da478d87c0bb (patch) | |
tree | 26b6c3d4d2574a894dd9b4704cf4356f7b4cca82 /plugins/check_smtp.c | |
parent | 8913862c50319cde5b93affefdc504ecbd64fe81 (diff) | |
download | monitoring-plugins-5646ca9d05c1e8a3e6d7381a4d07da478d87c0bb.tar.gz |
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
Diffstat (limited to 'plugins/check_smtp.c')
-rw-r--r-- | plugins/check_smtp.c | 179 |
1 files changed, 98 insertions, 81 deletions
diff --git a/plugins/check_smtp.c b/plugins/check_smtp.c index 5e980bcc..04df7e68 100644 --- a/plugins/check_smtp.c +++ b/plugins/check_smtp.c | |||
@@ -1,23 +1,5 @@ | |||
1 | /****************************************************************************** | 1 | /****************************************************************************** |
2 | * | 2 | * |
3 | * CHECK_SMTP.C | ||
4 | * | ||
5 | * Program: SMTP plugin for Nagios | ||
6 | * License: GPL | ||
7 | * Copyright (c) 1999 Ethan Galstad (nagios@nagios.org) | ||
8 | * | ||
9 | * $Id$ | ||
10 | * | ||
11 | * Description: | ||
12 | * | ||
13 | * This plugin will attempt to open an SMTP connection with the host. | ||
14 | * Successul connects return STATE_OK, refusals and timeouts return | ||
15 | * STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful | ||
16 | * connects, but incorrect reponse messages from the host result in | ||
17 | * STATE_WARNING return values. | ||
18 | * | ||
19 | * License Information: | ||
20 | * | ||
21 | * This program is free software; you can redistribute it and/or modify | 3 | * This program is free software; you can redistribute it and/or modify |
22 | * it under the terms of the GNU General Public License as published by | 4 | * it under the terms of the GNU General Public License as published by |
23 | * the Free Software Foundation; either version 2 of the License, or | 5 | * the Free Software Foundation; either version 2 of the License, or |
@@ -34,32 +16,64 @@ | |||
34 | * | 16 | * |
35 | *****************************************************************************/ | 17 | *****************************************************************************/ |
36 | 18 | ||
19 | const char *progname = "check_smtp"; | ||
20 | const char *revision = "$Revision$"; | ||
21 | const char *copyright = "1999-2003"; | ||
22 | const char *authors = "Nagios Plugin Development Team"; | ||
23 | const char *email = "nagiosplug-devel@lists.sourceforge.net"; | ||
24 | |||
25 | const char *summary = "\ | ||
26 | This plugin will attempt to open an SMTP connection with the host.\n"; | ||
27 | |||
28 | const char *description = "\ | ||
29 | Successul connects return STATE_OK, refusals and timeouts return\n\ | ||
30 | STATE_CRITICAL, other errors return STATE_UNKNOWN. Successful\n\ | ||
31 | connects, but incorrect reponse messages from the host result in\n\ | ||
32 | STATE_WARNING return values.\n"; | ||
33 | |||
34 | const char *option_summary = "\ | ||
35 | -H host [-p port] [-e expect] [-C command] [-f from addr] | ||
36 | [-w warn] [-c crit] [-t timeout] [-n] [-v]"; | ||
37 | |||
38 | const char *options = "\ | ||
39 | -H, --hostname=STRING or IPADDRESS\n\ | ||
40 | Check server on the indicated host\n\ | ||
41 | -p, --port=INTEGER\n\ | ||
42 | Make connection on the indicated port (default: %d)\n\ | ||
43 | -e, --expect=STRING\n\ | ||
44 | String to expect in first line of server response (default: '%s')\n\ | ||
45 | -n, nocommand\n\ | ||
46 | Suppress SMTP command\n\ | ||
47 | -C, --command=STRING\n\ | ||
48 | SMTP command (default: '%s')\n\ | ||
49 | -f, --from=STRING\n\ | ||
50 | FROM-address to include in MAIL command, required by Exchange 2000\n\ | ||
51 | (default: '%s')\n\ | ||
52 | -w, --warning=INTEGER\n\ | ||
53 | Seconds necessary to result in a warning status\n\ | ||
54 | -c, --critical=INTEGER\n\ | ||
55 | Seconds necessary to result in a critical status\n\ | ||
56 | -t, --timeout=INTEGER\n\ | ||
57 | Seconds before connection attempt times out (default: %d)\n\ | ||
58 | -v, --verbose\n\ | ||
59 | Print extra information (command-line use only)\n\ | ||
60 | -h, --help\n\ | ||
61 | Print detailed help screen\n\ | ||
62 | -V, --version\n\ | ||
63 | Print version information\n\n"; | ||
64 | |||
65 | enum { | ||
66 | SMTP_PORT = 25 | ||
67 | }; | ||
68 | const char *SMTP_EXPECT = "220"; | ||
69 | const char *SMTP_HELO = "HELO "; | ||
70 | const char *SMTP_QUIT = "QUIT\r\n"; | ||
71 | |||
37 | #include "config.h" | 72 | #include "config.h" |
38 | #include "common.h" | 73 | #include "common.h" |
39 | #include "netutils.h" | 74 | #include "netutils.h" |
40 | #include "utils.h" | 75 | #include "utils.h" |
41 | 76 | ||
42 | const char *progname = "check_smtp"; | ||
43 | |||
44 | #define SMTP_PORT 25 | ||
45 | #define SMTP_EXPECT "220" | ||
46 | #define SMTP_HELO "HELO " | ||
47 | |||
48 | /* sendmail will syslog a "NOQUEUE" error if session does not attempt | ||
49 | * to do something useful. This can be prevented by giving a command | ||
50 | * even if syntax is illegal (MAIL requires a FROM:<...> argument) | ||
51 | * You can disable sending DUMMYCMD by undefining SMTP_USE_DUMMYCMD. | ||
52 | * | ||
53 | * According to rfc821 you can include a null reversepath in the from command | ||
54 | * - but a log message is generated on the smtp server. | ||
55 | * | ||
56 | * Use the -f option to provide a FROM address | ||
57 | */ | ||
58 | |||
59 | #define SMTP_DUMMYCMD "MAIL " | ||
60 | #define SMTP_USE_DUMMYCMD 1 | ||
61 | #define SMTP_QUIT "QUIT\r\n" | ||
62 | |||
63 | int process_arguments (int, char **); | 77 | int process_arguments (int, char **); |
64 | int validate_arguments (void); | 78 | int validate_arguments (void); |
65 | void print_help (void); | 79 | void print_help (void); |
@@ -68,6 +82,8 @@ void print_usage (void); | |||
68 | int server_port = SMTP_PORT; | 82 | int server_port = SMTP_PORT; |
69 | char *server_address = NULL; | 83 | char *server_address = NULL; |
70 | char *server_expect = NULL; | 84 | char *server_expect = NULL; |
85 | int smtp_use_dummycmd = 1; | ||
86 | char *mail_command = "MAIL "; | ||
71 | char *from_arg = " "; | 87 | char *from_arg = " "; |
72 | int warning_time = 0; | 88 | int warning_time = 0; |
73 | int check_warning_time = FALSE; | 89 | int check_warning_time = FALSE; |
@@ -98,7 +114,7 @@ main (int argc, char **argv) | |||
98 | asprintf (&helocmd, "%s%s%s", SMTP_HELO, helocmd, "\r\n"); | 114 | asprintf (&helocmd, "%s%s%s", SMTP_HELO, helocmd, "\r\n"); |
99 | 115 | ||
100 | /* initialize the MAIL command with optional FROM command */ | 116 | /* initialize the MAIL command with optional FROM command */ |
101 | asprintf (&from_str, "%sFROM: %s%s", SMTP_DUMMYCMD, from_arg, "\r\n"); | 117 | asprintf (&from_str, "%sFROM: %s%s", mail_command, from_arg, "\r\n"); |
102 | 118 | ||
103 | if (verbose) | 119 | if (verbose) |
104 | printf ("FROMCMD: %s\n", from_str); | 120 | printf ("FROMCMD: %s\n", from_str); |
@@ -144,15 +160,27 @@ main (int argc, char **argv) | |||
144 | /* allow for response to helo command to reach us */ | 160 | /* allow for response to helo command to reach us */ |
145 | recv(sd, buffer, MAX_INPUT_BUFFER-1, 0); | 161 | recv(sd, buffer, MAX_INPUT_BUFFER-1, 0); |
146 | 162 | ||
147 | #ifdef SMTP_USE_DUMMYCMD | 163 | /* sendmail will syslog a "NOQUEUE" error if session does not attempt |
148 | send(sd, from_str, strlen(from_str), 0); | 164 | * to do something useful. This can be prevented by giving a command |
165 | * even if syntax is illegal (MAIL requires a FROM:<...> argument) | ||
166 | * | ||
167 | * According to rfc821 you can include a null reversepath in the from command | ||
168 | * - but a log message is generated on the smtp server. | ||
169 | * | ||
170 | * You can disable sending mail_command with '--nocommand' | ||
171 | * Use the -f option to provide a FROM address | ||
172 | */ | ||
173 | if (smtp_use_dummycmd) { | ||
149 | 174 | ||
150 | /* allow for response to DUMMYCMD to reach us */ | 175 | send(sd, from_str, strlen(from_str), 0); |
151 | recv(sd, buffer, MAX_INPUT_BUFFER-1, 0); | ||
152 | 176 | ||
153 | if (verbose) | 177 | /* allow for response to mail_command to reach us */ |
154 | printf("DUMMYCMD: %s\n%s\n",from_str,buffer); | 178 | recv(sd, buffer, MAX_INPUT_BUFFER-1, 0); |
155 | #endif /* SMTP_USE_DUMMYCMD */ | 179 | |
180 | if (verbose) | ||
181 | printf("DUMMYCMD: %s\n%s\n",from_str,buffer); | ||
182 | |||
183 | } /* smtp_use_dummycmd */ | ||
156 | 184 | ||
157 | /* tell the server we're done */ | 185 | /* tell the server we're done */ |
158 | send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0); | 186 | send (sd, SMTP_QUIT, strlen (SMTP_QUIT), 0); |
@@ -198,8 +226,11 @@ process_arguments (int argc, char **argv) | |||
198 | {"expect", required_argument, 0, 'e'}, | 226 | {"expect", required_argument, 0, 'e'}, |
199 | {"critical", required_argument, 0, 'c'}, | 227 | {"critical", required_argument, 0, 'c'}, |
200 | {"warning", required_argument, 0, 'w'}, | 228 | {"warning", required_argument, 0, 'w'}, |
229 | {"timeout", required_argument, 0, 't'}, | ||
201 | {"port", required_argument, 0, 'p'}, | 230 | {"port", required_argument, 0, 'p'}, |
202 | {"from", required_argument, 0, 'f'}, | 231 | {"from", required_argument, 0, 'f'}, |
232 | {"command", required_argument, 0, 'C'}, | ||
233 | {"nocommand", required_argument, 0, 'n'}, | ||
203 | {"verbose", no_argument, 0, 'v'}, | 234 | {"verbose", no_argument, 0, 'v'}, |
204 | {"version", no_argument, 0, 'V'}, | 235 | {"version", no_argument, 0, 'V'}, |
205 | {"help", no_argument, 0, 'h'}, | 236 | {"help", no_argument, 0, 'h'}, |
@@ -219,8 +250,8 @@ process_arguments (int argc, char **argv) | |||
219 | } | 250 | } |
220 | 251 | ||
221 | while (1) { | 252 | while (1) { |
222 | c = getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:", long_options, | 253 | c = getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:C:", |
223 | &option_index); | 254 | long_options, &option_index); |
224 | 255 | ||
225 | if (c == -1 || c == EOF) | 256 | if (c == -1 || c == EOF) |
226 | break; | 257 | break; |
@@ -248,6 +279,13 @@ process_arguments (int argc, char **argv) | |||
248 | case 'e': /* server expect string on 220 */ | 279 | case 'e': /* server expect string on 220 */ |
249 | server_expect = optarg; | 280 | server_expect = optarg; |
250 | break; | 281 | break; |
282 | case 'C': /* server expect string on 220 */ | ||
283 | mail_command = optarg; | ||
284 | smtp_use_dummycmd = 1; | ||
285 | break; | ||
286 | case 'n': /* server expect string on 220 */ | ||
287 | smtp_use_dummycmd = 0; | ||
288 | break; | ||
251 | case 'c': /* critical time threshold */ | 289 | case 'c': /* critical time threshold */ |
252 | if (is_intnonneg (optarg)) { | 290 | if (is_intnonneg (optarg)) { |
253 | critical_time = atoi (optarg); | 291 | critical_time = atoi (optarg); |
@@ -278,7 +316,7 @@ process_arguments (int argc, char **argv) | |||
278 | } | 316 | } |
279 | break; | 317 | break; |
280 | case 'V': /* version */ | 318 | case 'V': /* version */ |
281 | print_revision (progname, "$Revision$"); | 319 | print_revision (progname, revision); |
282 | exit (STATE_OK); | 320 | exit (STATE_OK); |
283 | case 'h': /* help */ | 321 | case 'h': /* help */ |
284 | print_help (); | 322 | print_help (); |
@@ -324,34 +362,13 @@ validate_arguments (void) | |||
324 | void | 362 | void |
325 | print_help (void) | 363 | print_help (void) |
326 | { | 364 | { |
327 | print_revision (progname, "$Revision$"); | 365 | print_revision (progname, revision); |
328 | printf | 366 | printf ("Copyright (c) %s %s\n\t<%s>\n\n%s\n", |
329 | ("Copyright (c) 2000 Ethan Galstad/Karl DeBisschop\n\n" | 367 | copyright, authors, email, summary); |
330 | "This plugin test the SMTP service on the specified host.\n\n"); | ||
331 | print_usage (); | 368 | print_usage (); |
332 | printf | 369 | printf ("\nOptions:\n"); |
333 | ("\nOptions:\n" | 370 | printf (options, SMTP_PORT, SMTP_EXPECT, mail_command, from_arg, |
334 | " -H, --hostname=STRING or IPADDRESS\n" | 371 | DEFAULT_SOCKET_TIMEOUT); |
335 | " Check server on the indicated host\n" | ||
336 | " -p, --port=INTEGER\n" | ||
337 | " Make connection on the indicated port (default: %d)\n" | ||
338 | " -e, --expect=STRING\n" | ||
339 | " String to expect in first line of server response (default: %s)\n" | ||
340 | " -f, --from=STRING\n" | ||
341 | " from address to include in MAIL command (default NULL, Exchange2000 requires one)\n" | ||
342 | " -w, --warning=INTEGER\n" | ||
343 | " Seconds necessary to result in a warning status\n" | ||
344 | " -c, --critical=INTEGER\n" | ||
345 | " Seconds necessary to result in a critical status\n" | ||
346 | " -t, --timeout=INTEGER\n" | ||
347 | " Seconds before connection attempt times out (default: %d)\n" | ||
348 | " -v, --verbose\n" | ||
349 | " Print extra information (command-line use only)\n" | ||
350 | " -h, --help\n" | ||
351 | " Print detailed help screen\n" | ||
352 | " -V, --version\n" | ||
353 | " Print version information\n\n", | ||
354 | SMTP_PORT, SMTP_EXPECT, DEFAULT_SOCKET_TIMEOUT); | ||
355 | support (); | 372 | support (); |
356 | } | 373 | } |
357 | 374 | ||
@@ -362,8 +379,8 @@ print_help (void) | |||
362 | void | 379 | void |
363 | print_usage (void) | 380 | print_usage (void) |
364 | { | 381 | { |
365 | printf | 382 | printf ("Usage: %s %s\n" |
366 | ("Usage: %s -H host [-e expect] [-p port] [-f from addr] [-w warn] [-c crit] [-t timeout] [-v]\n" | 383 | " %s --help\n" |
367 | " %s --help\n" | 384 | " %s --version\n", |
368 | " %s --version\n", progname, progname, progname); | 385 | progname, option_summary, progname, progname); |
369 | } | 386 | } |