X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_by_ssh.c;h=d5bd3de4e8c9794f508cbf57f2ca981213716a48;hb=016d33230eb4fffd7e1f5644ce4901cb4d01f4e3;hp=866044bd3b9e62975e538c908a5d149d77f19110;hpb=7283211f00a3a89956d9dfc4a851dc1aaa7a1cf3;p=nagiosplug.git diff --git a/plugins/check_by_ssh.c b/plugins/check_by_ssh.c index 866044b..d5bd3de 100644 --- a/plugins/check_by_ssh.c +++ b/plugins/check_by_ssh.c @@ -1,49 +1,43 @@ /****************************************************************************** - * - * This file is part of the Nagios Plugins. - * - * Copyright (c) 1999, 2000, 2001 Karl DeBisschop - * - * 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. + + $Id$ + *****************************************************************************/ const char *progname = "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 *revision = "$Revision$"; +const char *copyright = "2000-2004"; +const char *email = "nagiosplug-devel@lists.sourceforge.net"; -#include "config.h" #include "common.h" -#include "popen.h" +#include "netutils.h" #include "utils.h" -#include +#include "popen.h" int process_arguments (int, char **); int validate_arguments (void); -void print_help (const 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; @@ -51,37 +45,38 @@ char **service; 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 (""); - /* process arguments */ - if (process_arguments (argc, argv) == ERROR) - usage ("Could not parse arguments\n"); + setlocale (LC_ALL, ""); + bindtextdomain (PACKAGE, LOCALEDIR); + textdomain (PACKAGE); + /* process arguments */ + if (process_arguments (argc, argv) != TRUE) + usage4 (_("Could not parse arguments")); /* Set signal handling and alarm timeout */ if (signal (SIGALRM, popen_timeout_alarm_handler) == SIG_ERR) { - printf ("Cannot catch SIGALRM"); - return STATE_UNKNOWN; + usage4 (_(" Cannot catch SIGALRM")); } alarm (timeout_interval); - /* run the command */ if (verbose) @@ -90,7 +85,7 @@ main (int argc, char **argv) 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; } @@ -98,21 +93,28 @@ main (int argc, char **argv) /* 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 */ @@ -123,14 +125,14 @@ main (int argc, char **argv) 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; @@ -150,6 +152,7 @@ main (int argc, char **argv) } + /* print the first line from the remote command */ else { eol = strpbrk (result_text, "\r\n"); @@ -158,24 +161,20 @@ main (int argc, char **argv) printf ("%s\n", result_text); } - /* return error status from remote command */ + + /* return error status from remote command */ return result; } - - - - /* process command-line arguments */ int process_arguments (int argc, char **argv) { - int c, i; + int c; char *p1, *p2; - size_t len; - 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'}, @@ -190,6 +189,9 @@ process_arguments (int argc, char **argv) {"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} @@ -203,38 +205,40 @@ process_arguments (int argc, char **argv) strcpy (argv[c], "-t"); while (1) { - c = getopt_long (argc, argv, "Vvh46ft:H:O:p:i:u:l:C:n:s:", long_options, - &option_index); + c = getopt_long (argc, argv, "Vvh1246ft:H:O:p:i:u:l:C:S:n:s:", longopts, + &option); if (c == -1 || c == EOF) break; switch (c) { case '?': /* help */ + printf (_("%s: Unknown argument: %s\n\n"), progname, optarg); 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 hostname/address"), optarg); hostname = optarg; break; case 'p': /* port number */ if (!is_integer (optarg)) - usage2 ("port must be an integer", optarg); + usage2 (_("Port must be a positive integer"), optarg); asprintf (&comm,"%s -p %s", comm, optarg); break; case 'O': /* output file */ @@ -244,7 +248,7 @@ process_arguments (int argc, char **argv) case 's': /* description of service to check */ 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) * sizeof(char *)); @@ -261,8 +265,10 @@ process_arguments (int argc, char **argv) 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; @@ -271,15 +277,22 @@ process_arguments (int argc, char **argv) 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 (c <= argc) { - terminate (STATE_UNKNOWN, "%s: You must provide a host name\n", progname); + die (STATE_UNKNOWN, _("%s: You must provide a host name\n"), progname); } else if (!is_host (argv[c])) - terminate (STATE_UNKNOWN, "%s: Invalid host name %s\n", progname, argv[c]); + die (STATE_UNKNOWN, "%s: %s %s\n", progname, _("Invalid hostname/address"), argv[c]); hostname = argv[c++]; } @@ -292,10 +305,10 @@ process_arguments (int argc, char **argv) } if (commands > 1) - remotecmd = strscat (remotecmd, ";echo STATUS CODE: $?;"); + asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd); if (remotecmd == NULL || strlen (remotecmd) <= 1) - usage ("No remotecmd\n"); + usage (_("No remotecmd\n")); asprintf (&comm, "%s %s '%s'", comm, hostname, remotecmd); @@ -304,8 +317,6 @@ process_arguments (int argc, char **argv) - - int validate_arguments (void) { @@ -313,79 +324,94 @@ validate_arguments (void) return ERROR; if (passive && commands != services) - terminate (STATE_UNKNOWN, "%s: In passive mode, you must provide a service name for each command.\n", progname); + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide a service name for each command.\n"), progname); if (passive && host_shortname == NULL) - terminate (STATE_UNKNOWN, "%s: In passive mode, you must provide the host short name from the nagios configs.\n", progname); + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide the host short name from the nagios configs.\n"), progname); return OK; } - - - void -print_help (const char *cmd) +print_help (void) { - print_revision (cmd, "$Revision$"); + print_revision (progname, revision); + + printf (_("Copyright (c) 1999 Karl DeBisschop \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 -C \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 \n\ + -C [-n name] [-s servicelist] [-O outputfile] [-p port]\n"), + progname); + printf (_(UT_HLP_VRS), progname, progname); }