check_by_ssh: added -F config file to specify alternative ssh config

plugins/check_by_ssh.c

@@ -187,6 +187,7 @@ process_arguments (int argc, char **argv)
 		{"use-ipv6", no_argument, 0, '6'},
 		{"ssh-option", required_argument, 0, 'o'},
 		{"quiet", no_argument, 0, 'q'},
+		{"configfile", optional_argument, 0, 'F'},
 		{0, 0, 0, 0}
 	};
 
@@ -198,7 +199,7 @@ 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:", longopts,
+		c = getopt_long (argc, argv, "Vvh1246fqt:H:O:p:i:u:l:C:S::E::n:s:o:F:", longopts,
 		                 &option);
 
 		if (c == -1 || c == EOF)
@@ -306,6 +307,10 @@ process_arguments (int argc, char **argv)
 		case 'q':									/* Tell the ssh command to be quiet */
 			comm_append("-q");
 			break;
+		case 'F': 									/* ssh configfile */
+			comm_append("-F");
+			comm_append(optarg);
+			break;
 		default:									/* help */
 			usage5();
 		}
@@ -418,6 +423,8 @@ print_help (void)
   printf ("    %s\n", _("short name of host in nagios configuration [optional]"));
   printf (" %s\n","-o, --ssh-option=OPTION");
   printf ("    %s\n", _("Call ssh with '-o OPTION' (may be used multiple times) [optional]"));
+  printf (" %s\n","-F, --configfile");
+  printf ("    %s\n", _("Tell ssh to use this configfile [optional]"));
   printf (" %s\n","-q, --quiet");
   printf ("    %s\n", _("Tell ssh to suppress warning and diagnostic messages [optional]"));
 	printf (UT_WARN_CRIT);
@@ -454,6 +461,6 @@ print_usage (void)
 	printf (" %s -H <host> -C <command> [-fqv] [-1|-2] [-4|-6]\n"
 	        "       [-S [lines]] [-E [lines]] [-t timeout] [-i identity]\n"
 	        "       [-l user] [-n name] [-s servicelist] [-O outputfile]\n"
-	        "       [-p port] [-o ssh-option]\n",
+	        "       [-p port] [-o ssh-option] [-F configfile]\n",
 	        progname);
 }

plugins/t/check_by_ssh.t

@@ -17,9 +17,14 @@ my $ssh_key = getTestParameter( "NP_SSH_IDENTITY",
     "A key allowing access to NP_SSH_HOST",
     "~/.ssh/id_dsa");
 
+my $ssh_conf = getTestParameter( "NP_SSH_CONFIGFILE",
+    "A config file with ssh settings",
+    "~/.ssh/config");
+
+
 plan skip_all => "SSH_HOST and SSH_IDENTITY must be defined" unless ($ssh_service && $ssh_key);
 
-plan tests => 40;
+plan tests => 42;
 
 # Some random check strings/response
 my @responce = ('OK: Everything is fine!',
@@ -85,6 +90,12 @@ $result = NPTest->testCmd(
 cmp_ok($result->return_code, '==', 8, "Exit with return code 8 (out of bounds)");
 is($result->output, $responce[4], "Return proper status text even with unknown status codes");
 
+$result = NPTest->testCmd(
+	"./check_by_ssh -i $ssh_key -H $ssh_service -F $ssh_conf -C 'exit 0'"
+	);
+cmp_ok($result->return_code, '==', 0, "Exit with return code 0 (OK)");
+is($result->output, 'OK - check_by_ssh: Remote command \'exit 0\' returned status 0', "Status text if command returned none (OK)");
+
 # Multiple active checks
 $result = NPTest->testCmd(
 	"./check_by_ssh -i $ssh_key -H $ssh_service -C '$check[1]; sh -c exit\\ 1'  -C '$check[0]; sh -c exit\\ 0' -C '$check[3]; sh -c exit\\ 3' -C '$check[2]; sh -c exit\\ 2'"