Code

standardize localization string
[nagiosplug.git] / plugins / check_udp.c
1 /******************************************************************************
3  This program is free software; you can redistribute it and/or modify
4  it under the terms of the GNU General Public License as published by
5  the Free Software Foundation; either version 2 of the License, or
6  (at your option) any later version.
8  This program is distributed in the hope that it will be useful,
9  but WITHOUT ANY WARRANTY; without even the implied warranty of
10  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  GNU General Public License for more details.
13  You should have received a copy of the GNU General Public License
14  along with this program; if not, write to the Free Software
15  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17  $Id$
18  
19 *****************************************************************************/
21 const char *progname = "check_udp";
22 const char *revision = "$Revision$";
23 const char *copyright = "1999-2002";
24 const char *email = "nagiosplug-devel@lists.sourceforge.net";
26 #include "common.h"
27 #include "netutils.h"
28 #include "utils.h"
30 int process_arguments (int, char **);
31 void print_help (void);
32 void print_usage (void);
34 int warning_time = 0;
35 int check_warning_time = FALSE;
36 int critical_time = 0;
37 int check_critical_time = FALSE;
38 int verbose = FALSE;
39 int server_port = 0;
40 char *server_address = NULL;
41 char *server_expect = NULL;
42 char *server_send;
44 int
45 main (int argc, char **argv)
46 {
47         int result;
48         char recv_buffer[MAX_INPUT_BUFFER];
50         setlocale (LC_ALL, "");
51         bindtextdomain (PACKAGE, LOCALEDIR);
52         textdomain (PACKAGE);
54         if (process_arguments (argc, argv) == ERROR)
55                 usage (_("check_udp: could not parse arguments\n"));
57         /* initialize alarm signal handling */
58         signal (SIGALRM, socket_timeout_alarm_handler);
60         /* set socket timeout */
61         alarm (socket_timeout);
63         time (&start_time);
64         result = process_udp_request (server_address, server_port, server_send,
65                         recv_buffer, MAX_INPUT_BUFFER - 1);
66         time (&end_time);
68         if (result != STATE_OK) {
69                 printf ("No response from host on port %d\n", server_port);
70                 result = STATE_CRITICAL;
71         }
73         else {
75                 /* check to see if we got the response we wanted */
76                 if (server_expect) {
77                         if (!strstr (recv_buffer, server_expect)) {
78                                 printf ("Invalid response received from host on port %d\n",
79                                                                 server_port);
80                                 result = STATE_CRITICAL;
81                         }
82                 }
83         }
85         /* we connected, so close connection before exiting */
86         if (result == STATE_OK) {
88                 if (check_critical_time == TRUE
89                                 && (end_time - start_time) > critical_time) result = STATE_CRITICAL;
90                 else if (check_warning_time == TRUE
91                                                  && (end_time - start_time) > warning_time) result =
92                                 STATE_WARNING;
94                 printf (_("Connection %s on port %d - %d second response time\n"),
95                                                 (result == STATE_OK) ? _("accepted") : _("problem"), server_port,
96                                                 (int) (end_time - start_time));
97         }
99         /* reset the alarm */
100         alarm (0);
102         return result;
107 /* process command-line arguments */
108 int
109 process_arguments (int argc, char **argv)
111         int c;
113         int option = 0;
114         static struct option longopts[] = {
115                 {"hostname", required_argument, 0, 'H'},
116                 {"critical", required_argument, 0, 'c'},
117                 {"warning", required_argument, 0, 'w'},
118                 {"timeout", required_argument, 0, 't'},
119                 {"port", required_argument, 0, 'p'},
120                 {"expect", required_argument, 0, 'e'},
121                 {"send", required_argument, 0, 's'},
122                 {"verbose", no_argument, 0, 'v'},
123                 {"version", no_argument, 0, 'V'},
124                 {"help", no_argument, 0, 'h'},
125                 {0, 0, 0, 0}
126         };
128         if (argc < 2)
129                 usage ("\n");
131         for (c = 1; c < argc; c++) {
132                 if (strcmp ("-to", argv[c]) == 0)
133                         strcpy (argv[c], "-t");
134                 else if (strcmp ("-wt", argv[c]) == 0)
135                         strcpy (argv[c], "-w");
136                 else if (strcmp ("-ct", argv[c]) == 0)
137                         strcpy (argv[c], "-c");
138         }
140         while (1) {
141                 c = getopt_long (argc, argv, "+hVvH:e:s:c:w:t:p:", longopts, &option);
143                 if (c == -1 || c == EOF || c == 1)
144                         break;
146                 switch (c) {
147                 case '?':                                                                       /* print short usage statement if args not parsable */
148                         printf (_("%s: Unknown argument: %s\n\n"), progname, optarg);
149                         print_usage ();
150                         exit (STATE_UNKNOWN);
151                 case 'h':                                                                       /* help */
152                         print_help ();
153                         exit (STATE_OK);
154                 case 'V':                                                                       /* version */
155                         print_revision (progname, revision);
156                         exit (STATE_OK);
157                 case 'v':                                                                       /* verbose mode */
158                         verbose = TRUE;
159                         break;
160                 case 'H':                                                                       /* hostname */
161                         if (is_host (optarg) == FALSE)
162                                 usage2 (_("Invalid hostname/address"), optarg);
163                         server_address = optarg;
164                         break;
165                 case 'c':                                                                       /* critical */
166                         if (!is_intnonneg (optarg))
167                                 usage (_("Critical threshold must be a positive integer\n"));
168                         else
169                                 critical_time = atoi (optarg);
170                         check_critical_time = TRUE;
171                         break;
172                 case 'w':                                                                       /* warning */
173                         if (!is_intnonneg (optarg))
174                                 usage (_("Warning threshold must be a positive integer\n"));
175                         else
176                                 warning_time = atoi (optarg);
177                         check_warning_time = TRUE;
178                         break;
179                 case 't':                                                                       /* timeout */
180                         if (!is_intnonneg (optarg))
181                                 usage2 (_("Timeout interval must be a positive integer"), optarg);
182                         else
183                                 socket_timeout = atoi (optarg);
184                         break;
185                 case 'p':                                                                       /* port */
186                         if (!is_intnonneg (optarg))
187                                 usage (_("Port must be a positive integer\n"));
188                         else
189                                 server_port = atoi (optarg);
190                         break;
191                 case 'e':                                                                       /* expect */
192                         server_expect = optarg;
193                         break;
194                 case 's':                                                                       /* send */
195                         server_send = optarg;
196                         break;
197                 }
198         }
200         c = optind;
201         if (server_address == NULL && c < argc && argv[c]) {
202                 if (is_host (argv[c]) == FALSE)
203                         usage2 (_("Invalid hostname/address"), optarg);
204                 server_address = argv[c++];
205         }
207         if (server_address == NULL)
208                 usage (_("Host name was not supplied\n"));
210         if (server_send == NULL)
211                 server_send = strdup("");
213         return c;
218 void
219 print_help (void)
221         print_revision (progname, revision);
223         printf ("Copyright (c) 1999 Ethan Galstad\n");
224         printf (COPYRIGHT, copyright, email);
226         printf (_("\
227 This plugin tests an UDP connection with the specified host.\n\n"));
229         print_usage ();
231         printf (_(UT_HELP_VRSN));
233         printf (_(UT_HOST_PORT), 'p', "none");
235         printf (_("\
236  -e, --expect=STRING <optional>\n\
237     String to expect in first line of server response\n\
238  -s, --send=STRING <optional>\n\
239     String to send to the server when initiating the connection\n"));
241         printf (_(UT_WARN_CRIT));
243         printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
245         printf (_(UT_VERBOSE));
247         printf (_("\
248 This plugin will attempt to connect to the specified port on the host.\n\
249 Successful connects return STATE_OK, refusals and timeouts return\n\
250 STATE_CRITICAL, other errors return STATE_UNKNOWN.\n\n"));
252         printf(_(UT_SUPPORT));
258 /* Original Command line: 
259    check_udp <host_address> [-p port] [-s send] [-e expect] \
260    [-wt warn_time] [-ct crit_time] [-to to_sec] */
261 void
262 print_usage (void)
264         printf (_("\
265 Usage: %s -H <host_address> [-p port] [-w warn_time] [-c crit_time]\n\
266     [-e expect] [-s send] [-t to_sec] [-v]\n"), progname);
267         printf (_(UT_HLP_VRS), progname, progname);