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diff --git a/plugins/check_by_ssh.c b/plugins/check_by_ssh.c
index 59e417861fcac568f13e3c36cf79b5e04dc2f9e9..49794cc7c0552eeba1f565bee60dbffa7720cef9 100644 (file)
--- a/plugins/check_by_ssh.c
+++ b/plugins/check_by_ssh.c
/******************************************************************************
- *
- * This file is part of the Nagios Plugins.
- *
- * Copyright (c) 1999, 2000, 2001 Karl DeBisschop <karl@debisschop.net>
- *
- * 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.
- *
- * $Id$
- *
+
+ 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.
+
*****************************************************************************/
-#define PROGRAM check_by_ssh
-#define DESCRIPTION "Run checks on a remote system using ssh, wrapping the proper timeout around the ssh invocation."
-#define AUTHOR "Karl DeBisschop"
-#define EMAIL "karl@debisschop.net"
-#define COPYRIGHTDATE "1999, 2000, 2001"
+const char *progname = "check_by_ssh";
+const char *revision = "$Revision$";
+const char *copyright = "2000-2003";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
-#include "config.h"
#include "common.h"
-#include "popen.h"
+#include "netutils.h"
#include "utils.h"
-#include <time.h>
-
-#define PROGNAME "check_by_ssh"
+#include "popen.h"
int process_arguments (int, char **);
int validate_arguments (void);
-void print_help (char *command_name);
+void print_help (void);
void print_usage (void);
-
int commands = 0;
int services = 0;
-char *remotecmd = "";
-char *comm = SSH_COMMAND;
+int skip_lines = 0;
+char *remotecmd = NULL;
+char *comm = NULL;
char *hostname = NULL;
char *outputfile = NULL;
char *host_shortname = NULL;
int passive = FALSE;
int verbose = FALSE;
-
int
main (int argc, char **argv)
{
- char input_buffer[MAX_INPUT_BUFFER] = "";
- char *result_text = "";
+ char input_buffer[MAX_INPUT_BUFFER];
+ char *result_text;
char *status_text;
- char *output = "";
- char *summary = "";
+ char *output;
char *eol = NULL;
- char *srvc_desc = NULL;
int cresult;
int result = STATE_UNKNOWN;
time_t local_time;
FILE *fp = NULL;
+ remotecmd = strdup ("");
+ comm = strdup (SSH_COMMAND);
+ result_text = strdup ("");
+
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
/* process arguments */
if (process_arguments (argc, argv) == ERROR)
- usage ("Could not parse arguments\n");
+ usage (_("Could not parse arguments\n"));
/* Set signal handling and alarm timeout */
if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) {
- printf ("Cannot catch SIGALRM");
+ printf (_("Cannot catch SIGALRM"));
return STATE_UNKNOWN;
}
alarm (timeout_interval);
child_process = spopen (comm);
if (child_process == NULL) {
- printf ("Unable to open pipe: %s", comm);
+ printf (_("Could not open pipe: %s\n"), comm);
return STATE_UNKNOWN;
}
/* open STDERR for spopen */
child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
if (child_stderr == NULL) {
- printf ("Could not open stderr for %s\n", SSH_COMMAND);
+ printf (_("Could not open stderr for %s\n"), SSH_COMMAND);
}
- /* get results from remote command */
+ /* build up results from remote command in result_text */
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process))
asprintf (&result_text, "%s%s", result_text, input_buffer);
-
/* WARNING if output found on stderr */
- if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) {
- printf ("%s\n", input_buffer);
- return STATE_WARNING;
+ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) {
+ if (skip_lines > 0) {
+ if (input_buffer[strlen(input_buffer)-1] == '\n') {
+ skip_lines--;
+ }
+ } else {
+ printf ("%s", input_buffer);
+ result = STATE_WARNING;
+ }
}
(void) fclose (child_stderr);
+ if (result == STATE_WARNING)
+ return result;
/* close the pipe */
if (passive) {
if (!(fp = fopen (outputfile, "a"))) {
- printf ("SSH WARNING: could not open %s\n", outputfile);
+ printf (_("SSH WARNING: could not open %s\n"), outputfile);
exit (STATE_UNKNOWN);
}
- time (&local_time);
+ local_time = time (NULL);
commands = 0;
while (result_text && strlen(result_text) > 0) {
- status_text = (strstr (result_text, "STATUS CODE: "));
+ status_text = strstr (result_text, "STATUS CODE: ");
if (status_text == NULL) {
printf ("%s", result_text);
return result;
}
+
/* print the first line from the remote command */
else {
eol = strpbrk (result_text, "\r\n");
printf ("%s\n", result_text);
}
- /* return error status from remote command */
+
+ /* return error status from remote command */
return result;
}
+\f
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
- int c, i;
+ int c;
char *p1, *p2;
- size_t len;
-#ifdef HAVE_GETOPT_H
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{"verbose", no_argument, 0, 'v'},
{"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'},
{0, 0, 0, 0}
};
-#endif
if (argc < 2)
return ERROR;
strcpy (argv[c], "-t");
while (1) {
-#ifdef HAVE_GETOPT_H
- c =
- getopt_long (argc, argv, "Vvh46ft:H:O:p:i:u:l:C:n:s:", long_options,
- &option_index);
-#else
- c = getopt (argc, argv, "Vvh46ft:H:O:p:i:u:l:C:n:s:");
-#endif
+ c = getopt_long (argc, argv, "Vvh1246ft:H:O:p:i:u:l:C:S:n:s:", longopts,
+ &option);
if (c == -1 || c == EOF)
break;
print_usage ();
exit (STATE_UNKNOWN);
case 'V': /* version */
- print_revision (PROGNAME, "$Revision$");
+ print_revision (progname, "$Revision$");
exit (STATE_OK);
case 'h': /* help */
- print_help (PROGNAME);
+ print_help ();
exit (STATE_OK);
case 'v': /* help */
verbose = TRUE;
break;
case 't': /* timeout period */
if (!is_integer (optarg))
- usage2 ("timeout interval must be an integer", optarg);
- timeout_interval = atoi (optarg);
+ usage2 (_("Timeout interval must be a positive integer"), optarg);
+ else
+ timeout_interval = atoi (optarg);
break;
case 'H': /* host */
if (!is_host (optarg))
- usage2 ("invalid host name", optarg);
+ usage2 (_("Invalid host name"), optarg);
hostname = optarg;
break;
case 'p': /* port number */
if (!is_integer (optarg))
- usage2 ("port must be an integer", optarg);
+ usage2 (_("port must be an integer"), optarg);
asprintf (&comm,"%s -p %s", comm, optarg);
break;
case 'O': /* output file */
passive = TRUE;
break;
case 's': /* description of service to check */
- service = realloc (service, ++services);
+ service = realloc (service, (++services) * sizeof(char *));
p1 = optarg;
- while (p2 = index (p1, ':')) {
+ while ((p2 = index (p1, ':'))) {
*p2 = '\0';
asprintf (&service[services-1], "%s", p1);
- service = realloc (service, ++services);
+ service = realloc (service, (++services) * sizeof(char *));
p1 = p2 + 1;
}
asprintf (&service[services-1], "%s", p1);
case 'i': /* identity */
asprintf (&comm, "%s -%c %s", comm, c, optarg);
break;
- case '4': /* Pass these switches directly to ssh */
- case '6': /* -4 for IPv4, -6 for IPv6 */
+ 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;
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))
+ usage2 (_("skip lines must be an integer"), optarg);
+ else
+ skip_lines = atoi (optarg);
+ break;
}
}
c = optind;
if (hostname == NULL) {
- if (!is_host (argv[c]))
- terminate (STATE_UNKNOWN, "%s: Invalid host name %s\n", PROGNAME, argv[c]);
+ if (c <= argc) {
+ die (STATE_UNKNOWN, _("%s: You must provide a host name\n"), progname);
+ } else if (!is_host (argv[c]))
+ die (STATE_UNKNOWN, _("%s: Invalid host name %s\n"), progname, argv[c]);
hostname = argv[c++];
}
if (strlen(remotecmd) == 0) {
for (; c < argc; c++)
- asprintf (&remotecmd, "%s %s", remotecmd, argv[c]);
+ if (strlen(remotecmd) > 0)
+ asprintf (&remotecmd, "%s %s", remotecmd, argv[c]);
+ else
+ asprintf (&remotecmd, "%s", argv[c]);
}
if (commands > 1)
- remotecmd = strscat (remotecmd, ";echo STATUS CODE: $?;");
+ asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd);
if (remotecmd == NULL || strlen (remotecmd) <= 1)
- usage ("No remotecmd\n");
+ usage (_("No remotecmd\n"));
asprintf (&comm, "%s %s '%s'", comm, hostname, remotecmd);
return ERROR;
if (passive && commands != services)
- terminate (STATE_UNKNOWN, "%s: In passive mode, you must provide a service name for each command.\n", PROGNAME);
+ die (STATE_UNKNOWN, _("%s: In passive mode, you must provide a service name for each command.\n"), progname);
if (passive && host_shortname == NULL)
- terminate (STATE_UNKNOWN, "%s: In passive mode, you must provide the host short name from the nagios configs.\n", PROGNAME);
+ die (STATE_UNKNOWN, _("%s: In passive mode, you must provide the host short name from the nagios configs.\n"), progname);
return OK;
}
+\f
void
-print_help (char *cmd)
+print_help (void)
{
- print_revision (cmd, "$Revision$");
+ print_revision (progname, revision);
+
+ printf (_("Copyright (c) 1999 Karl DeBisschop <kdebisschop@users.sourceforge.net>\n"));
+ printf (_(COPYRIGHT), copyright, email);
- printf
- ("Copyright (c) 1999 Karl DeBisschop (kdebisschop@alum.mit.edu)\n\n"
- "This plugin will execute a command on a remote host using SSH\n\n");
+ printf (_("This plugin uses SSH to execute commands on a remote host\n\n"));
print_usage ();
- printf
- ("\nOptions:\n"
- "-H, --hostname=HOST\n"
- " name or IP address of remote host\n"
- "-C, --command='COMMAND STRING'\n"
- " command to execute on the remote machine\n"
- "-f tells ssh to fork rather than create a tty\n"
- "-t, --timeout=INTEGER\n"
- " specify timeout (default: %d seconds) [optional]\n"
- "-p, --port=PORT\n"
- " port to connect to on remote system [optional]\n"
- "-l, --logname=USERNAME\n"
- " SSH user name on remote host [optional]\n"
- "-i, --identity=KEYFILE\n"
- " identity of an authorized key [optional]\n"
- "-O, --output=FILE\n"
- " external command file for nagios [optional]\n"
- "-s, --services=LIST\n"
- " list of nagios service names, separated by ':' [optional]\n"
- "-n, --name=NAME\n"
- " short name of host in nagios configuration [optional]\n"
- "-4, --use-ipv4\n"
- " tell ssh to use IPv4\n"
- "-6, --use-ipv6\n"
- " tell ssh to use IPv6\n"
- "\n"
- "The most common mode of use is to refer to a local identity file with\n"
- "the '-i' option. In this mode, the identity pair should have a null\n"
- "passphrase and the public key should be listed in the authorized_keys\n"
- "file of the remote host. Usually the key will be restricted to running\n"
- "only one command on the remote server. If the remote SSH server tracks\n"
- "invocation agruments, the one remote program may be an agent that can\n"
- "execute additional commands as proxy\n"
- "\n"
- "To use passive mode, provide multiple '-C' options, and provide\n"
- "all of -O, -s, and -n options (servicelist order must match '-C'\n"
- "options)\n", DEFAULT_SOCKET_TIMEOUT);
+ printf (_(UT_HELP_VRSN));
+
+ printf (_(UT_HOST_PORT), 'p', "none");
+
+ printf (_(UT_IPv46));
+
+ printf (_("\
+ -1, --proto1\n\
+ tell ssh to use Protocol 1\n\
+ -2, --proto2\n\
+ tell ssh to use Protocol 2\n\
+ -S, --skiplines=n\n\
+ Ignore first n lines on STDERR (to suppress a logon banner)\n\
+ -f\n\
+ tells ssh to fork rather than create a tty\n"));
+
+ printf (_("\
+ -C, --command='COMMAND STRING'\n\
+ command to execute on the remote machine\n\
+ -l, --logname=USERNAME\n\
+ SSH user name on remote host [optional]\n\
+ -i, --identity=KEYFILE\n\
+ identity of an authorized key [optional]\n\
+ -O, --output=FILE\n\
+ external command file for nagios [optional]\n\
+ -s, --services=LIST\n\
+ list of nagios service names, separated by ':' [optional]\n\
+ -n, --name=NAME\n\
+ short name of host in nagios configuration [optional]\n"));
+
+ printf (_(UT_WARN_CRIT));
+
+ printf (_(UT_TIMEOUT), DEFAULT_SOCKET_TIMEOUT);
+
+ printf (_("\n\
+The most common mode of use is to refer to a local identity file with\n\
+the '-i' option. In this mode, the identity pair should have a null\n\
+passphrase and the public key should be listed in the authorized_keys\n\
+file of the remote host. Usually the key will be restricted to running\n\
+only one command on the remote server. If the remote SSH server tracks\n\
+invocation agruments, the one remote program may be an agent that can\n\
+execute additional commands as proxy\n"));
+
+ printf (_("\n\
+To use passive mode, provide multiple '-C' options, and provide\n\
+all of -O, -s, and -n options (servicelist order must match '-C'\n\
+options)\n"));
+
+ printf (_("\n\
+$ check_by_ssh -H localhost -n lh -s c1:c2:c3 \\\n\
+ -C uptime -C uptime -C uptime -O /tmp/foo\n\
+$ cat /tmp/foo\n\
+[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c1;0; up 2 days...\n\
+[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c2;0; up 2 days...\n\
+[1080933700] PROCESS_SERVICE_CHECK_RESULT;flint;c3;0; up 2 days...\n"));
+
+ printf (_(UT_SUPPORT));
}
void
print_usage (void)
{
- printf
- ("Usage:\n"
- "check_by_ssh [-f46] [-t timeout] [-i identity] [-l user] -H <host> -C <command>\n"
- " [-n name] [-s servicelist] [-O outputfile] [-p port]\n"
- "check_by_ssh -V prints version info\n"
- "check_by_ssh -h prints more detailed help\n");
+ printf (_("\n\
+Usage: %s [-f46] [-t timeout] [-i identity] [-l user] -H <host> \n\
+ -C <command> [-n name] [-s servicelist] [-O outputfile] [-p port]\n"),
+ progname);
+ printf (_(UT_HLP_VRS), progname, progname);
}