X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=plugins%2Fcheck_by_ssh.c;h=59e8ea0ca42e8491ff8fa224fa27b53800de3c08;hb=3a9b2491aa376e199ec9c8b2d4c9b5daa6c942aa;hp=59264dcd69da1052b4abf3a6363e3535f05d7eb0;hpb=318bb4ae140f0676f1988815d99dcf707a51337c;p=nagiosplug.git diff --git a/plugins/check_by_ssh.c b/plugins/check_by_ssh.c index 59264dc..59e8ea0 100644 --- a/plugins/check_by_ssh.c +++ b/plugins/check_by_ssh.c @@ -1,78 +1,72 @@ /****************************************************************************** - * - * 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. + *****************************************************************************/ -#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 - -#define PROGNAME "check_by_ssh" +#include "popen.h" int process_arguments (int, char **); -int call_getopt (int, char **); int validate_arguments (void); -void print_help (char *command_name); +void print_help (void); void print_usage (void); - -int commands; +int commands = 0; +int services = 0; char *remotecmd = NULL; char *comm = NULL; char *hostname = NULL; char *outputfile = NULL; char *host_shortname = NULL; -char *servicelist = NULL; +char **service; int passive = FALSE; int verbose = FALSE; + + + + int main (int argc, char **argv) { - char input_buffer[MAX_INPUT_BUFFER] = ""; - char *result_text = NULL; + char input_buffer[MAX_INPUT_BUFFER]; + char *result_text; char *status_text; - char *output = NULL; + char *output; char *eol = NULL; - char *srvc_desc = NULL; int cresult; int result = STATE_UNKNOWN; time_t local_time; FILE *fp = NULL; + asprintf (&remotecmd, "%s", ""); + asprintf (&comm, "%s", SSH_COMMAND); /* 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 */ @@ -91,7 +85,7 @@ main (int argc, char **argv) child_process = spopen (comm); if (child_process == NULL) { - printf ("Unable to open pipe: %s", comm); + printf (_("Unable to open pipe: %s"), comm); return STATE_UNKNOWN; } @@ -99,15 +93,13 @@ 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 */ - result_text = realloc (result_text, 1); - result_text[0] = 0; while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) - result_text = strscat (result_text, input_buffer); + asprintf (&result_text, "%s%s", result_text, input_buffer); /* WARNING if output found on stderr */ @@ -126,29 +118,28 @@ 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); - srvc_desc = strtok (servicelist, ":"); - while (result_text != NULL) { - status_text = (strstr (result_text, "STATUS CODE: ")); + commands = 0; + while (result_text && strlen(result_text) > 0) { + status_text = strstr (result_text, _("STATUS CODE: ")); if (status_text == NULL) { printf ("%s", result_text); return result; } - output = result_text; + asprintf (&output, "%s", result_text); result_text = strnl (status_text); eol = strpbrk (output, "\r\n"); if (eol != NULL) eol[0] = 0; - if (srvc_desc && status_text - && sscanf (status_text, "STATUS CODE: %d", &cresult) == 1) { - fprintf (fp, "%d PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n", - (int) local_time, host_shortname, srvc_desc, cresult, + if (service[commands] && status_text + && sscanf (status_text, _("STATUS CODE: %d"), &cresult) == 1) { + fprintf (fp, _("[%d] PROCESS_SERVICE_CHECK_RESULT;%s;%s;%d;%s\n"), + (int) local_time, host_shortname, service[commands++], cresult, output); - srvc_desc = strtok (NULL, ":"); } } @@ -156,14 +147,12 @@ main (int argc, char **argv) /* print the first line from the remote command */ else { - eol = strpbrk (result_text, "\r\n"); - if (eol) - eol[0] = 0; - printf ("%s\n", result_text); - + eol = strpbrk (result_text, "\r\n"); + if (eol) + eol[0] = 0; + printf ("%s\n", result_text); } - /* return error status from remote command */ return result; } @@ -172,66 +161,14 @@ main (int argc, char **argv) + /* process command-line arguments */ int process_arguments (int argc, char **argv) { int c; + char *p1, *p2; - if (argc < 2) - return ERROR; - - remotecmd = realloc (remotecmd, 1); - remotecmd[0] = 0; - - for (c = 1; c < argc; c++) - if (strcmp ("-to", argv[c]) == 0) - strcpy (argv[c], "-t"); - - comm = strscpy (comm, SSH_COMMAND); - - c = 0; - while (c += (call_getopt (argc - c, &argv[c]))) { - - if (argc <= c) - break; - - if (hostname == NULL) { - if (!is_host (argv[c])) - terminate (STATE_UNKNOWN, "%s: Invalid host name %s\n", PROGNAME, - argv[c]); - hostname = argv[c]; - } - else if (remotecmd == NULL) { - remotecmd = strscpy (remotecmd, argv[c++]); - for (; c < argc; c++) - remotecmd = ssprintf (remotecmd, "%s %s", remotecmd, argv[c]); - } - - } - - if (commands > 1) - remotecmd = strscat (remotecmd, ";echo STATUS CODE: $?;"); - - if (remotecmd == NULL || strlen (remotecmd) <= 1) - usage ("No remotecmd\n"); - - comm = ssprintf (comm, "%s %s '%s'", comm, hostname, remotecmd); - - return validate_arguments (); -} - - - - - -/* Call getopt */ -int -call_getopt (int argc, char **argv) -{ - int c, i = 1; - -#ifdef HAVE_GETOPT_H int option_index = 0; static struct option long_options[] = { {"version", no_argument, 0, 'V'}, @@ -248,72 +185,69 @@ call_getopt (int argc, char **argv) {"user", required_argument, 0, 'u'}, {"logname", required_argument, 0, 'l'}, {"command", required_argument, 0, 'C'}, + {"proto1", no_argument, 0, '1'}, + {"proto2", no_argument, 0, '2'}, {"use-ipv4", no_argument, 0, '4'}, {"use-ipv6", no_argument, 0, '6'}, {0, 0, 0, 0} }; -#endif + + if (argc < 2) + return ERROR; + + for (c = 1; c < argc; c++) + if (strcmp ("-to", argv[c]) == 0) + strcpy (argv[c], "-t"); while (1) { -#ifdef HAVE_GETOPT_H - c = - getopt_long (argc, argv, "+?Vvhft46H:O:p:i:u:l:C:n:s:", long_options, + c = getopt_long (argc, argv, "Vvh1246ft:H:O:p:i:u:l:C:n:s:", long_options, &option_index); -#else - c = getopt (argc, argv, "+?Vvhft46H:O:p:i:u:l:C:n:s:"); -#endif if (c == -1 || c == EOF) break; - i++; - switch (c) { - case 't': - case 'H': - case 'O': - case 'p': - case 'i': - case 'u': - case 'l': - case 'n': - case 's': - i++; - } - switch (c) { case '?': /* help */ print_usage (); exit (STATE_UNKNOWN); case 'V': /* version */ - print_revision (PROGNAME, "$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); + usage2 (_("timeout interval must be an integer"), optarg); 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); - comm = ssprintf (comm,"%s -p %s", comm, optarg); + usage2 (_("port must be an integer"), optarg); + asprintf (&comm,"%s -p %s", comm, optarg); break; case 'O': /* output file */ outputfile = optarg; passive = TRUE; break; case 's': /* description of service to check */ - servicelist = optarg; + service = realloc (service, (++services) * sizeof(char *)); + p1 = optarg; + while ((p2 = index (p1, ':'))) { + *p2 = '\0'; + asprintf (&service[services-1], "%s", p1); + service = realloc (service, (++services) * sizeof(char *)); + p1 = p2 + 1; + } + asprintf (&service[services-1], "%s", p1); break; case 'n': /* short name of host in nagios configuration */ host_shortname = optarg; @@ -322,21 +256,49 @@ call_getopt (int argc, char **argv) c = 'l'; case 'l': /* login name */ case 'i': /* identity */ - comm = ssprintf (comm, "%s -%c %s", comm, c, optarg); + 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 */ - comm = ssprintf (comm, "%s -%c", comm, c); + asprintf (&comm, "%s -%c", comm, c); break; case 'C': /* Command for remote machine */ commands++; if (commands > 1) - remotecmd = strscat (remotecmd, ";echo STATUS CODE: $?;"); - remotecmd = strscat (remotecmd, optarg); + asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd); + asprintf (&remotecmd, "%s%s", remotecmd, optarg); } } - return i; + + c = optind; + if (hostname == NULL) { + 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++) + if (strlen(remotecmd) > 0) + asprintf (&remotecmd, "%s %s", remotecmd, argv[c]); + else + asprintf (&remotecmd, "%s", argv[c]); + } + + if (commands > 1) + asprintf (&remotecmd, "%s;echo STATUS CODE: $?;", remotecmd); + + if (remotecmd == NULL || strlen (remotecmd) <= 1) + usage (_("No remotecmd\n")); + + asprintf (&comm, "%s %s '%s'", comm, hostname, remotecmd); + + return validate_arguments (); } @@ -348,6 +310,13 @@ validate_arguments (void) { if (remotecmd == NULL || hostname == NULL) return ERROR; + + if (passive && commands != services) + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide a service name for each command.\n"), progname); + + if (passive && host_shortname == NULL) + die (STATE_UNKNOWN, _("%s: In passive mode, you must provide the host short name from the nagios configs.\n"), progname); + return OK; } @@ -355,54 +324,64 @@ validate_arguments (void) + void -print_help (char *cmd) +print_help (void) { - print_revision (cmd, "$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\ + -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")); } @@ -412,10 +391,9 @@ print_help (char *cmd) 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); }