3 files changed, 60 insertions, 10 deletions

diff --git a/plugins/check_http.c b/plugins/check_http.c
index 468e4c2..038ac68 100644
--- a/plugins/check_http.c
+++ b/plugins/check_http.c
@@ -45,13 +45,17 @@ certificate expiration times.\n"
             [-w <warn time>] [-c <critical time>] [-t <timeout>] [-L]\n\
             [-a auth] [-f <ok | warn | critcal | follow>] [-e <expect>]\n\
             [-s string] [-l] [-r <regex> | -R <case-insensitive regex>]\n\
-            [-P string] [-m min_pg_size]"
+            [-P string] [-m min_pg_size] [-4|-6]"
 
 #define LONGOPTIONS "\
  -H, --hostname=ADDRESS\n\
     Host name argument for servers using host headers (virtual host)\n\
  -I, --IP-address=ADDRESS\n\
    IP address or name (use numeric address if possible to bypass DNS lookup).\n\
+ -4, --use-ipv4\n\
+   Use IPv4 protocol\n\
+ -6, --use-ipv6\n\
+   Use IPv6 protocol\n\
  -e, --expect=STRING\n\
    String to expect in first (status) line of server response (default: %s)\n\
    If specified skips all other status line logic (ex: 3xx, 4xx, 5xx processing)\n\
@@ -316,6 +320,8 @@ process_arguments (int argc, char **argv)
                 {"onredirect", required_argument, 0, 'f'},
                 {"certificate", required_argument, 0, 'C'},
                 {"min", required_argument, 0, 'm'},
+                {"use-ipv4", no_argument, 0, '4'},
+                {"use-ipv6", no_argument, 0, '6'},
                 {0, 0, 0, 0}
         };
 
@@ -336,7 +342,7 @@ process_arguments (int argc, char **argv)
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "Vvht:c:w:H:P:I:a:e:p:s:R:r:u:f:C:nlLSm:", long_options, &option_index);
+                c = getopt_long (argc, argv, "Vvh46t:c:w:H:P:I:a:e:p:s:R:r:u:f:C:nlLSm:", long_options, &option_index);
                 if (c == -1 || c == EOF)
                         break;
 
@@ -464,6 +470,16 @@ process_arguments (int argc, char **argv)
                         }
                         break;
 #endif
+                case '4':
+                        address_family = AF_INET;
+                        break;
+                case '6':
+#ifdef USE_IPV6
+                        address_family = AF_INET6;
+#else
+                        usage ("IPv6 support not available\n");
+#endif
+                        break;
                 case 'v': /* verbose */
                         verbose = TRUE;
                         break;
diff --git a/plugins/check_ldap.c b/plugins/check_ldap.c
index 8eb8956..af919f2 100644
--- a/plugins/check_ldap.c
+++ b/plugins/check_ldap.c
@@ -159,6 +159,8 @@ process_arguments (int argc, char **argv)
                 {"ver2", no_argument, 0, '2'},
                 {"ver3", no_argument, 0, '3'},
 #endif
+                {"use-ipv4", no_argument, 0, '4'},
+                {"use-ipv6", no_argument, 0, '6'},
                 {"port", required_argument, 0, 'p'},
                 {"warn", required_argument, 0, 'w'},
                 {"crit", required_argument, 0, 'c'},
@@ -174,7 +176,7 @@ process_arguments (int argc, char **argv)
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "hV23t:c:w:H:b:p:a:D:P:", longopts, &option_index);
+                c = getopt_long (argc, argv, "hV2346t:c:w:H:b:p:a:D:P:", longopts, &option_index);
 
                 if (c == -1 || c == EOF)
                         break;
@@ -223,14 +225,28 @@ process_arguments (int argc, char **argv)
                         ld_protocol = 3;
                         break;
 #endif
+                case '4':
+                        address_family = AF_INET;
+                        break;
+                case '6':
+#ifdef USE_IPV6
+                        address_family = AF_INET6;
+#else
+                        usage ("IPv6 support not available\n");
+#endif
+                        break;
                 default:
                         usage ("check_ldap: could not parse unknown arguments\n");
                         break;
                 }
         }
 
-        if (ld_host[0] == 0) {
-                asprintf (&ld_host, "%s", argv[c]);
+        c = optind;
+        if (strlen(ld_host) == 0 && is_host(argv[c])) {
+                asprintf (&ld_host, "%s", argv[c++]);
+        }
+        if (strlen(ld_base) == 0 && argv[c]) {
+                asprintf (&ld_base, "%s", argv[c++]);
         }
 
         return validate_arguments ();
@@ -271,8 +287,10 @@ print_help ()
                  "\t-P [--pass] ... ldap password (if required)\n"
                  "\t-p [--port] ... ldap port (default: %d)\n"
 #ifdef HAVE_LDAP_SET_OPTION
-                 "\t-2 [--ver2] ... use ldap porotocol version 2\n"
-                 "\t-3 [--ver3] ... use ldap porotocol version 3\n"
+                 "\t-2 [--ver2] ... use ldap protocol version 2\n"
+                 "\t-3 [--ver3] ... use ldap protocol version 3\n"
+                 "\t-4 [--use-ipv4] ... use IPv4 protocol\n"
+                 "\t-6 [--use-ipv6] ... use IPv6 protocol\n"
                  "\t\t(default protocol version: %d)\n"
 #endif
                  "\t-w [--warn] ... time in secs. - if the exceeds <warn> the STATE_WARNING will be returned\n"
@@ -292,7 +310,7 @@ print_usage ()
                 ("Usage: %s -H <host> -b <base_dn> [-p <port>] [-a <attr>] [-D <binddn>]\n"
                  "         [-P <password>] [-w <warn_time>] [-c <crit_time>] [-t timeout]\n"
 #ifdef HAVE_LDAP_SET_OPTION
-                 "         [-2|-3]\n"
+                 "         [-2|-3] [-4|-6]\n"
 #endif
                  "(Note: all times are in seconds.)\n", progname);
 }
diff --git a/plugins/check_smtp.c b/plugins/check_smtp.c
index dd9f19b..7562c4c 100644
--- a/plugins/check_smtp.c
+++ b/plugins/check_smtp.c
@@ -33,11 +33,15 @@ STATE_WARNING return values.\n";
 
 const char *option_summary = "\
 -H host [-p port] [-e expect] [-C command] [-f from addr]\n\
-         [-w warn] [-c crit] [-t timeout] [-n] [-v]";
+         [-w warn] [-c crit] [-t timeout] [-n] [-v] [-4|-6]";
 
 const char *options = "\
  -H, --hostname=STRING or IPADDRESS\n\
    Check server on the indicated host\n\
+ -4, --use-ipv4\n\
+   Use IPv4 protocol\n\
+ -6, --use-ipv6\n\
+   Use IPv6 protocol\n\
  -p, --port=INTEGER\n\
    Make connection on the indicated port (default: %d)\n\
  -e, --expect=STRING\n\
@@ -233,6 +237,8 @@ process_arguments (int argc, char **argv)
                 {"nocommand", required_argument, 0, 'n'},
                 {"verbose", no_argument, 0, 'v'},
                 {"version", no_argument, 0, 'V'},
+                {"use-ipv4", no_argument, 0, '4'},
+                {"use-ipv6", no_argument, 0, '6'},
                 {"help", no_argument, 0, 'h'},
                 {0, 0, 0, 0}
         };
@@ -250,7 +256,7 @@ process_arguments (int argc, char **argv)
         }
 
         while (1) {
-                c = getopt_long (argc, argv, "+hVvt:p:f:e:c:w:H:C:",
+                c = getopt_long (argc, argv, "+hVv46t:p:f:e:c:w:H:C:",
                                  long_options, &option_index);
 
                 if (c == -1 || c == EOF)
@@ -315,6 +321,16 @@ process_arguments (int argc, char **argv)
                                 usage ("Time interval must be a nonnegative integer\n");
                         }
                         break;
+                case '4':
+                        address_family = AF_INET;
+                        break;
+                case '6':
+#ifdef USE_IPV6
+                        address_family = AF_INET6;
+#else
+                        usage ("IPv6 support not available\n");
+#endif
+                        break;
                 case 'V':                                                                       /* version */
                         print_revision (progname, revision);
                         exit (STATE_OK);