diff options
| -rw-r--r-- | plugins/check_by_ssh.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/plugins/check_by_ssh.c b/plugins/check_by_ssh.c index 39d49070..1ad547ed 100644 --- a/plugins/check_by_ssh.c +++ b/plugins/check_by_ssh.c @@ -50,6 +50,7 @@ unsigned int services = 0; int skip_stdout = 0; int skip_stderr = 0; int warn_on_stderr = 0; +bool unknown_timeout = FALSE; char *remotecmd = NULL; char **commargv = NULL; int commargc = 0; @@ -101,6 +102,13 @@ main (int argc, char **argv) result = cmd_run_array (commargv, &chld_out, &chld_err, 0); + /* SSH returns 255 if connection attempt fails; include the first line of error output */ + if (result == 255 && unknown_timeout) { + printf (_("SSH connection failed: %s\n"), + chld_err.lines > 0 ? chld_err.line[0] : "(no error output)"); + return STATE_UNKNOWN; + } + if (verbose) { for(i = 0; i < chld_out.lines; i++) printf("stdout: %s\n", chld_out.line[i]); @@ -180,6 +188,7 @@ process_arguments (int argc, char **argv) {"verbose", no_argument, 0, 'v'}, {"fork", no_argument, 0, 'f'}, {"timeout", required_argument, 0, 't'}, + {"unknown-timeout", no_argument, 0, 'U'}, {"host", required_argument, 0, 'H'}, /* backward compatibility */ {"hostname", required_argument, 0, 'H'}, {"port", required_argument,0,'p'}, @@ -212,7 +221,7 @@ process_arguments (int argc, char **argv) strcpy (argv[c], "-t"); while (1) { - c = getopt_long (argc, argv, "Vvh1246fqt:H:O:p:i:u:l:C:S::E::n:s:o:F:", longopts, + c = getopt_long (argc, argv, "Vvh1246fqt:UH:O:p:i:u:l:C:S::E::n:s:o:F:", longopts, &option); if (c == -1 || c == EOF) @@ -234,6 +243,9 @@ process_arguments (int argc, char **argv) else timeout_interval = atoi (optarg); break; + case 'U': + unknown_timeout = TRUE; + break; case 'H': /* host */ hostname = optarg; break; @@ -445,6 +457,8 @@ print_help (void) printf (" %s\n", _("Tell ssh to suppress warning and diagnostic messages [optional]")); printf (UT_WARN_CRIT); printf (UT_CONN_TIMEOUT, DEFAULT_SOCKET_TIMEOUT); + printf (" %s\n","-U, --unknown-timeout"); + printf (" %s\n", _("Make connection problems return UNKNOWN instead of CRITICAL")); printf (UT_VERBOSE); printf("\n"); printf (" %s\n", _("The most common mode of use is to refer to a local identity file with")); @@ -474,7 +488,7 @@ void print_usage (void) { printf ("%s\n", _("Usage:")); - printf (" %s -H <host> -C <command> [-fqv] [-1|-2] [-4|-6]\n" + printf (" %s -H <host> -C <command> [-fqvU] [-1|-2] [-4|-6]\n" " [-S [lines]] [-E [lines]] [-W] [-t timeout] [-i identity]\n" " [-l user] [-n name] [-s servicelist] [-O outputfile]\n" " [-p port] [-o ssh-option] [-F configfile]\n", |