Added address_family extern int variable to netutils to allow for -4 & -6

	options for explicit connection protocol
Added support for -4 & -6 options to check_ssh and check_tcp for testing


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@568 f882894a-f735-0410-b71e-b25c423dba1c

plugins/check_ssh.c

@@ -68,6 +68,8 @@ process_arguments (int argc, char **argv)
 	static struct option long_options[] = {
 		{"version", no_argument, 0, 'V'},
 		{"help", no_argument, 0, 'h'},
+		{"use-ipv4", no_argument, 0, '4'},
+		{"use-ipv6", no_argument, 0, '6'},
 		{"verbose", no_argument, 0, 'v'},
 		{"timeout", required_argument, 0, 't'},
 		{"host", required_argument, 0, 'H'},
@@ -82,7 +84,7 @@ process_arguments (int argc, char **argv)
 			strcpy (argv[c], "-t");
 
 	while (1) {
-		c = getopt_long (argc, argv, "+Vhvt:H:p:", long_options, &option_index);
+		c = getopt_long (argc, argv, "+Vhv46t:H:p:", long_options, &option_index);
 
 		if (c == -1 || c == EOF)
 			break;
@@ -104,6 +106,12 @@ process_arguments (int argc, char **argv)
 				usage ("Timeout Interval must be an integer!\n\n");
 			socket_timeout = atoi (optarg);
 			break;
+		case '4':
+			address_family = AF_INET;
+			break;
+		case '6':
+			address_family = AF_INET6;
+			break;
 		case 'H':									/* host */
 			if (is_host (optarg) == FALSE)
 				usage ("Invalid hostname/address\n");
@@ -217,7 +225,10 @@ print_usage (void)
 		("Usage:\n"
 		 " %s -t [timeout] -p [port] <host>\n"
 		 " %s -V prints version info\n"
-		 " %s -h prints more detailed help\n", progname, progname, progname);
+		 " %s -4 use IPv4 connection\n"
+		 " %s -6 use IPv6 connection\n"
+		 " %s -h prints more detailed help\n", 
+		 progname, progname, progname, progname, progname);
 }
 
 /* end of check_ssh.c */

plugins/check_tcp.c

@@ -29,7 +29,7 @@ This plugin tests %s connections with the specified host.\n";
 const char *option_summary = "\
 -H host -p port [-w warn_time] [-c crit_time] [-s send_string]\n\
 	[-e expect_string] [-q quit_string] [-m maxbytes] [-d delay]\n\
-  [-t to_sec] [-r refuse_state] [-v]\n";
+	[-t to_sec] [-r refuse_state] [-v] [-4] [-6]\n";
 
 const char *options = "\
  -H, --hostname=ADDRESS\n\
@@ -37,6 +37,10 @@ const char *options = "\
     address if possible to bypass DNS lookup).\n\
  -p, --port=INTEGER\n\
     Port number\n\
+ -4, --use-ipv4\n\
+    Use IPv4 connection\n\
+ -6, --use-ipv6\n\
+    Use IPv6 connection\n\
  -s, --send=STRING\n\
     String to send to the server\n\
  -e, --expect=STRING\n\
@@ -392,6 +396,8 @@ process_arguments (int argc, char **argv)
 		{"quit", required_argument, 0, 'q'},
 		{"delay", required_argument, 0, 'd'},
 		{"refuse", required_argument, 0, 'r'},
+		{"use-ipv4", no_argument, 0, '4'},
+		{"use-ipv6", no_argument, 0, '6'},
 		{"verbose", no_argument, 0, 'v'},
 		{"version", no_argument, 0, 'V'},
 		{"help", no_argument, 0, 'h'},
@@ -419,7 +425,7 @@ process_arguments (int argc, char **argv)
 	}
 
 	while (1) {
-		c = getopt_long (argc, argv, "+hVvH:s:e:q:m:c:w:t:p:C:W:d:Sr:",
+		c = getopt_long (argc, argv, "+hVv46H:s:e:q:m:c:w:t:p:C:W:d:Sr:",
 		                 long_options, &option_index);
 
 		if (c == -1 || c == EOF || c == 1)
@@ -439,6 +445,12 @@ process_arguments (int argc, char **argv)
 		case 'v':                 /* verbose mode */
 			verbose = TRUE;
 			break;
+		case '4':
+			address_family = AF_INET;
+			break;
+		case '6':
+			address_family = AF_INET6;
+			break;
 		case 'H':                 /* hostname */
 			if (is_host (optarg) == FALSE)
 				usage2 ("invalid host name or address", optarg);

plugins/netutils.c

@@ -35,6 +35,7 @@
 int socket_timeout = DEFAULT_SOCKET_TIMEOUT; 
 int econn_refuse_state = STATE_CRITICAL;
 int was_refused = FALSE;
+int address_family = AF_UNSPEC;
 
 /* handles socket timeouts */
 void
@@ -254,7 +255,7 @@ my_connect (char *host_name, int port, int *sd, int proto)
 	int result;
 
 	memset (&hints, 0, sizeof (hints));
-	hints.ai_family = PF_UNSPEC;
+	hints.ai_family = address_family;
 	hints.ai_protocol = proto;
 	hints.ai_socktype = (proto == IPPROTO_UDP) ? SOCK_DGRAM : SOCK_STREAM;
 

plugins/netutils.h

@@ -61,3 +61,4 @@ int is_hostname (char *);
 extern int socket_timeout;
 extern int econn_refuse_state;
 extern int was_refused;
+extern int address_family;