![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_tcp.c b/plugins/check_tcp.c
index cbe859568a7b051cda21cf963a4848b4630fca9a..eb31774d1fa4f01f54b9f6aec5c38014f5449db1 100644 (file)
--- a/plugins/check_tcp.c
+++ b/plugins/check_tcp.c
-/******************************************************************************
- *
- * This file is part of the Nagios Plugins.
- *
- * Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>
- *
- * The Nagios Plugins are free software; you can redistribute them
- * and/or modify them 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.
- *
- * $Id$
- *
- *****************************************************************************/
-
-#define PROGRAM check_tcp
-#define REVISION "$Revision$"
-#define DESCRIPTION "Check a TCP port"
-#define AUTHOR "Ethan Galstad"
-#define EMAIL "nagios@nagios.org"
-#define COPYRIGHTDATE "2002"
-
+/*****************************************************************************
+*
+* 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.
+*
+*****************************************************************************/
#include "config.h"
#include "common.h"
#include "netutils.h"
#include "utils.h"
#ifdef HAVE_SSL_H
-#include <rsa.h>
-#include <crypto.h>
-#include <x509.h>
-#include <pem.h>
-#include <ssl.h>
-#include <err.h>
-#endif
-
-#ifdef HAVE_OPENSSL_SSL_H
-#include <openssl/rsa.h>
-#include <openssl/crypto.h>
-#include <openssl/x509.h>
-#include <openssl/pem.h>
-#include <openssl/ssl.h>
-#include <openssl/err.h>
+# include <rsa.h>
+# include <crypto.h>
+# include <x509.h>
+# include <pem.h>
+# include <ssl.h>
+# include <err.h>
+#else
+# ifdef HAVE_OPENSSL_SSL_H
+# include <openssl/rsa.h>
+# include <openssl/crypto.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/ssl.h>
+# include <openssl/err.h>
+# endif
#endif
#ifdef HAVE_SSL
int connect_SSL (void);
#endif
-#define TCP_PROTOCOL 1
-#define UDP_PROTOCOL 2
+enum {
+ TCP_PROTOCOL = 1,
+ UDP_PROTOCOL = 2,
+ MAXBUF = 1024
+};
int process_arguments (int, char **);
void print_usage (void);
void print_help (void);
+int my_recv (void);
-char *PROGNAME = NULL;
char *SERVICE = NULL;
char *SEND = NULL;
char *EXPECT = NULL;
char *server_quit = NULL;
char **server_expect = NULL;
int server_expect_count = 0;
+int maxbytes = 0;
char **warn_codes = NULL;
int warn_codes_count = 0;
char **crit_codes = NULL;
int verbose = FALSE;
int use_ssl = FALSE;
int sd = 0;
+char *buffer = "";
+
+/* progname changes depending on symlink called */
+char *progname = "check_tcp";
+const char *revision = "$Revision$";
+const char *copyright = "2002-2003";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
+\f
+
+
+
+void
+print_usage (void)
+{
+ printf (_("\
+Usage: %s -H host -p port [-w <warning time>] [-c <critical time>]\n\
+ [-s <send string>] [-e <expect string>] [-q <quit string>]\n\
+ [-m <maximum bytes>] [-d <delay>] [-t <timeout seconds>]\n\
+ [-r <refuse state>] [-v] [-4|-6]\n"), progname);
+ printf (" %s (-h|--help)\n", progname);
+ printf (" %s (-V|--version)\n", progname);
+}
+void
+print_help (void)
+{
+ print_revision (progname, revision);
+
+ printf (_(COPYRIGHT), copyright, email);
+
+ printf (_("This plugin tests %s connections with the specified host.\n\n"),
+ SERVICE);
+
+ print_usage ();
+
+ printf (_(HELP_VRSN));
+
+ printf (_(HOST_PORT_46), 'p', "none");
+
+ printf (_("\
+ -s, --send=STRING\n\
+ String to send to the server\n\
+ -e, --expect=STRING\n\
+ String to expect in server response\n\
+ -q, --quit=STRING\n\
+ String to send server to initiate a clean close of the connection\n"));
+
+ printf (_("\
+ -r, --refuse=ok|warn|crit\n\
+ Accept tcp refusals with states ok, warn, crit (default: crit)\n\
+ -m, --maxbytes=INTEGER\n\
+ Close connection once more than this number of bytes are received\n\
+ -d, --delay=INTEGER\n\
+ Seconds to wait between sending string and polling for response\n"));
+
+ printf (_(WARN_CRIT_TO), DEFAULT_SOCKET_TIMEOUT);
+
+ printf (_(VRBS));
+
+ support ();
+}
+\f
+
int
main (int argc, char **argv)
{
int result;
int i;
- char *buffer = "";
char *status = "";
struct timeval tv;
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
if (strstr (argv[0], "check_udp")) {
- asprintf (&PROGNAME, "check_udp");
- asprintf (&SERVICE, "UDP");
+ progname = strdup ("check_udp");
+ SERVICE = strdup ("UDP");
SEND = NULL;
EXPECT = NULL;
QUIT = NULL;
PORT = 0;
}
else if (strstr (argv[0], "check_tcp")) {
- asprintf (&PROGNAME, "check_tcp");
- asprintf (&SERVICE, "TCP");
+ progname = strdup ("check_tcp");
+ SERVICE = strdup ("TCP");
SEND = NULL;
EXPECT = NULL;
QUIT = NULL;
PORT = 0;
}
else if (strstr (argv[0], "check_ftp")) {
- asprintf (&PROGNAME, "check_ftp");
- asprintf (&SERVICE, "FTP");
+ progname = strdup ("check_ftp");
+ SERVICE = strdup ("FTP");
SEND = NULL;
- asprintf (&EXPECT, "220");
- asprintf (&QUIT, "QUIT\r\n");
+ EXPECT = strdup ("220");
+ QUIT = strdup ("QUIT\r\n");
PROTOCOL = TCP_PROTOCOL;
PORT = 21;
}
else if (strstr (argv[0], "check_smtp")) {
- asprintf (&PROGNAME, "check_smtp");
- asprintf (&SERVICE, "SMTP");
+ progname = strdup ("check_smtp");
+ SERVICE = strdup ("SMTP");
SEND = NULL;
- asprintf (&EXPECT, "220");
- asprintf (&QUIT, "QUIT\r\n");
+ EXPECT = strdup ("220");
+ QUIT = strdup ("QUIT\r\n");
PROTOCOL = TCP_PROTOCOL;
PORT = 25;
}
else if (strstr (argv[0], "check_pop")) {
- asprintf (&PROGNAME, "check_pop");
- asprintf (&SERVICE, "POP");
+ progname = strdup ("check_pop");
+ SERVICE = strdup ("POP");
SEND = NULL;
- asprintf (&EXPECT, "+OK");
- asprintf (&QUIT, "QUIT\r\n");
+ EXPECT = strdup ("+OK");
+ QUIT = strdup ("QUIT\r\n");
PROTOCOL = TCP_PROTOCOL;
PORT = 110;
}
else if (strstr (argv[0], "check_imap")) {
- asprintf (&PROGNAME, "check_imap");
- asprintf (&SERVICE, "IMAP");
+ progname = strdup ("check_imap");
+ SERVICE = strdup ("IMAP");
SEND = NULL;
- asprintf (&EXPECT, "* OK");
- asprintf (&QUIT, "a1 LOGOUT\r\n");
+ EXPECT = strdup ("* OK");
+ QUIT = strdup ("a1 LOGOUT\r\n");
PROTOCOL = TCP_PROTOCOL;
PORT = 143;
}
#ifdef HAVE_SSL
else if (strstr(argv[0],"check_simap")) {
- asprintf (&PROGNAME, "check_simap");
- asprintf (&SERVICE, "SIMAP");
+ progname = strdup ("check_simap");
+ SERVICE = strdup ("SIMAP");
SEND=NULL;
- asprintf (&EXPECT, "* OK");
- asprintf (&QUIT, "a1 LOGOUT\r\n");
+ EXPECT = strdup ("* OK");
+ QUIT = strdup ("a1 LOGOUT\r\n");
PROTOCOL=TCP_PROTOCOL;
use_ssl=TRUE;
PORT=993;
}
else if (strstr(argv[0],"check_spop")) {
- asprintf (&PROGNAME, "check_spop");
- asprintf (&SERVICE, "SPOP");
+ progname = strdup ("check_spop");
+ SERVICE = strdup ("SPOP");
SEND=NULL;
- asprintf (&EXPECT, "110");
- asprintf (&QUIT, "QUIT\r\n");
+ EXPECT = strdup ("+OK");
+ QUIT = strdup ("QUIT\r\n");
PROTOCOL=TCP_PROTOCOL;
use_ssl=TRUE;
PORT=995;
}
#endif
else if (strstr (argv[0], "check_nntp")) {
- asprintf (&PROGNAME, "check_nntp");
- asprintf (&SERVICE, "NNTP");
+ progname = strdup ("check_nntp");
+ SERVICE = strdup ("NNTP");
SEND = NULL;
EXPECT = NULL;
server_expect = realloc (server_expect, ++server_expect_count);
PORT = 119;
}
else {
- usage ("ERROR: Generic check_tcp called with unknown service\n");
+ usage (_("ERROR: Generic check_tcp called with unknown service\n"));
}
- asprintf (&server_address, "127.0.0.1");
+ server_address = strdup ("127.0.0.1");
server_port = PORT;
server_send = SEND;
server_quit = QUIT;
if (process_arguments (argc, argv) == ERROR)
- usage ("Could not parse arguments\n");
+ usage (_("Could not parse arguments\n"));
/* use default expect if none listed in process_arguments() */
if (EXPECT && server_expect_count == 0) {
{
if (PROTOCOL == UDP_PROTOCOL)
result = my_udp_connect (server_address, server_port, &sd);
- else /* default is TCP */
+ else
+ /* default is TCP */
result = my_tcp_connect (server_address, server_port, &sd);
}
if (server_send || server_expect_count > 0) {
- buffer = malloc (MAX_INPUT_BUFFER);
+ buffer = malloc (MAXBUF);
+ memset (buffer, '\0', MAXBUF);
/* watch for the expect string */
-#ifdef HAVE_SSL
- if (use_ssl && SSL_read (ssl, buffer, MAX_INPUT_BUFFER - 1) > 0)
+ while ((i = my_recv ()) > 0) {
+ buffer[i] = '\0';
asprintf (&status, "%s%s", status, buffer);
- else
-#endif
- if (recv (sd, buffer, MAX_INPUT_BUFFER - 1, 0) > 0)
- asprintf (&status, "%s%s", status, buffer);
+ if (buffer[i-2] == '\r' && buffer[i-1] == '\n')
+ break;
+ if (maxbytes>0 && strlen(status) >= (unsigned)maxbytes)
+ break;
+ }
/* return a CRITICAL status if we couldn't read any data */
if (status == NULL)
- terminate (STATE_CRITICAL, "No data received from host\n");
+ terminate (STATE_CRITICAL, _("No data received from host\n"));
strip (status);
if (verbose)
printf ("%d %d\n", i, server_expect_count);
if (i >= server_expect_count)
- terminate (STATE_WARNING, "Invalid response from host\n");
+ terminate (STATE_WARNING, _("Invalid response from host\n"));
if (strstr (status, server_expect[i]))
break;
}
}
}
- if (server_quit)
+ if (server_quit != NULL) {
#ifdef HAVE_SSL
if (use_ssl) {
- SSL_write (ssl, QUIT, strlen (QUIT));
+ SSL_write (ssl, server_quit, strlen (server_quit));
SSL_shutdown (ssl);
SSL_free (ssl);
SSL_CTX_free (ctx);
}
- else
+ else {
+#endif
+ send (sd, server_quit, strlen (server_quit), 0);
+#ifdef HAVE_SSL
+ }
#endif
- send (sd, server_quit, strlen (server_quit), 0);
+ }
/* close the connection */
if (sd)
alarm (0);
printf
- ("%s %s - %7.3f second response time on port %d",
+ (_("%s %s%s - %.3f second response time on port %d"),
SERVICE,
- state_text (result), elapsed_time, server_port);
+ state_text (result),
+ (was_refused) ? " (refused)" : "",
+ elapsed_time, server_port);
if (status && strlen(status) > 0)
printf (" [%s]", status);
- printf ("|time=%7.3f\n", elapsed_time);
+ printf ("|time=%.3f\n", elapsed_time);
return result;
}
-
-
-
-
+\f
{
int c;
-#ifdef HAVE_GETOPT_H
int option_index = 0;
static struct option long_options[] = {
{"hostname", required_argument, 0, 'H'},
{"port", required_argument, 0, 'p'},
{"send", required_argument, 0, 's'},
{"expect", required_argument, 0, 'e'},
+ {"maxbytes", required_argument, 0, 'm'},
{"quit", required_argument, 0, 'q'},
{"delay", required_argument, 0, 'd'},
+ {"refuse", required_argument, 0, 'r'},
+ {"use-ipv4", no_argument, 0, '4'},
+ {"use-ipv6", no_argument, 0, '6'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
-#endif
if (argc < 2)
usage ("No arguments found\n");
}
while (1) {
-#ifdef HAVE_GETOPT_H
- c =
- getopt_long (argc, argv, "+hVvH:s:e:q:c:w:t:p:C:W:d:S", long_options,
- &option_index);
-#else
- c = getopt (argc, argv, "+hVvH:s:e:q:c:w:t:p:C:W:d:S");
-#endif
+ c = getopt_long (argc, argv, "+hVv46H:s:e:q:m:c:w:t:p:C:W:d:Sr:",
+ long_options, &option_index);
if (c == -1 || c == EOF || c == 1)
break;
switch (c) {
case '?': /* print short usage statement if args not parsable */
- printf ("%s: Unknown argument: %s\n\n", my_basename (argv[0]), optarg);
+ printf (_("%s: Unknown argument: %s\n\n"), progname, optarg);
print_usage ();
exit (STATE_UNKNOWN);
case 'h': /* help */
print_help ();
exit (STATE_OK);
case 'V': /* version */
- print_revision (PROGNAME, "$Revision$");
+ print_revision (progname, "$Revision$");
exit (STATE_OK);
case 'v': /* verbose mode */
verbose = TRUE;
break;
+ case '4':
+ address_family = AF_INET;
+ break;
+ case '6':
+#ifdef USE_IPV6
+ address_family = AF_INET6;
+#else
+ usage (_("IPv6 support not available\n"));
+#endif
+ break;
case 'H': /* hostname */
if (is_host (optarg) == FALSE)
- usage ("Invalid host name/address\n");
+ usage2 (_("invalid host name or address"), optarg);
server_address = optarg;
break;
case 'c': /* critical */
if (!is_intnonneg (optarg))
- usage ("Critical threshold must be a nonnegative integer\n");
+ usage (_("Critical threshold must be a nonnegative integer\n"));
critical_time = strtod (optarg, NULL);
check_critical_time = TRUE;
break;
case 'w': /* warning */
if (!is_intnonneg (optarg))
- usage ("Warning threshold must be a nonnegative integer\n");
+ usage (_("Warning threshold must be a nonnegative integer\n"));
warning_time = strtod (optarg, NULL);
check_warning_time = TRUE;
break;
break;
case 't': /* timeout */
if (!is_intpos (optarg))
- usage ("Timeout interval must be a positive integer\n");
+ usage (_("Timeout interval must be a positive integer\n"));
socket_timeout = atoi (optarg);
break;
case 'p': /* port */
if (!is_intpos (optarg))
- usage ("Server port must be a positive integer\n");
+ usage (_("Server port must be a positive integer\n"));
server_port = atoi (optarg);
break;
case 's':
server_expect = realloc (server_expect, ++server_expect_count);
server_expect[server_expect_count - 1] = optarg;
break;
+ case 'm':
+ if (!is_intpos (optarg))
+ usage (_("Maxbytes must be a positive integer\n"));
+ maxbytes = atoi (optarg);
case 'q':
server_quit = optarg;
break;
+ case 'r':
+ if (!strncmp(optarg,"ok",2))
+ econn_refuse_state = STATE_OK;
+ else if (!strncmp(optarg,"warn",4))
+ econn_refuse_state = STATE_WARNING;
+ else if (!strncmp(optarg,"crit",4))
+ econn_refuse_state = STATE_CRITICAL;
+ else
+ usage (_("Refuse mut be one of ok, warn, crit\n"));
+ break;
case 'd':
if (is_intpos (optarg))
delay = atoi (optarg);
else
- usage ("Delay must be a positive integer\n");
+ usage (_("Delay must be a positive integer\n"));
break;
case 'S':
#ifndef HAVE_SSL
terminate (STATE_UNKNOWN,
- "SSL support not available. Install OpenSSL and recompile.");
+ _("SSL support not available. Install OpenSSL and recompile."));
#endif
use_ssl = TRUE;
break;
}
if (server_address == NULL)
- usage ("You must provide a server address\n");
+ usage (_("You must provide a server address\n"));
return OK;
}
-
-
-
-
-
-void
-print_usage (void)
-{
- printf
- ("Usage: %s -H host -p port [-w warn_time] [-c crit_time] [-s send]\n"
- " [-e expect] [-W wait] [-t to_sec] [-v]\n", PROGNAME);
-}
-
-
-
-
-
-void
-print_help (void)
-{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)\n\n"
- "This plugin tests %s connections with the specified host.\n\n",
- SERVICE);
- print_usage ();
- printf
- ("Options:\n"
- " -H, --hostname=ADDRESS\n"
- " Host name argument for servers using host headers (use numeric\n"
- " address if possible to bypass DNS lookup).\n"
- " -p, --port=INTEGER\n"
- " Port number\n"
- " -s, --send=STRING\n"
- " String to send to the server\n"
- " -e, --expect=STRING\n"
- " String to expect in server response"
- " -W, --wait=INTEGER\n"
- " Seconds to wait between sending string and polling for response\n"
- " -w, --warning=DOUBLE\n"
- " Response time to result in warning status (seconds)\n"
- " -c, --critical=DOUBLE\n"
- " Response time to result in critical status (seconds)\n"
- " -t, --timeout=INTEGER\n"
- " Seconds before connection times out (default: %d)\n"
- " -v"
- " Show details for command-line debugging (do not use with nagios server)\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n"
- " Print version information\n", DEFAULT_SOCKET_TIMEOUT);
-}
-
+\f
#ifdef HAVE_SSL
int
SSL_load_error_strings ();
if ((ctx = SSL_CTX_new (meth)) == NULL)
{
- printf ("ERROR: Cannot create SSL context.\n");
+ printf (_("ERROR: Cannot create SSL context.\n"));
return STATE_CRITICAL;
}
time (&start_time);
/* Make TCP connection */
- if (my_tcp_connect (server_address, server_port, &sd) == STATE_OK)
+ if (my_tcp_connect (server_address, server_port, &sd) == STATE_OK && was_refused == FALSE)
{
/* Do the SSL handshake */
if ((ssl = SSL_new (ctx)) != NULL)
}
else
{
- printf ("ERROR: Cannot initiate SSL handshake.\n");
+ printf (_("ERROR: Cannot initiate SSL handshake.\n"));
}
SSL_free (ssl);
}
}
#endif
+
+
+int
+my_recv (void)
+{
+ int i;
+
+#ifdef HAVE_SSL
+ if (use_ssl) {
+ i = SSL_read (ssl, buffer, MAXBUF - 1);
+ }
+ else {
+#endif
+ i = read (sd, buffer, MAXBUF - 1);
+#ifdef HAVE_SSL
+ }
+#endif
+
+ return i;
+}