X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemctl%2Fsystemctl.c;h=f6eed1cc7f60593240cf824ecf593451e9e1e7e7;hp=39f4e6c5093f8c8479e26212f6a6c136265a2ec3;hb=45c0c61df3c63cb1f20505c8d292385d5e300578;hpb=48c2826b4ea686cd69e489f9c6fe2d9ddebb6a69

diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 39f4e6c50..f6eed1cc7 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -4058,6 +4058,22 @@ static int runlevel_help(void) {
         return 0;
 }
 
+static int help_types(void) {
+        int i;
+
+        puts("Available unit types:");
+        for(i = UNIT_SERVICE; i < _UNIT_TYPE_MAX; i++)
+                if (unit_type_table[i])
+                        puts(unit_type_table[i]);
+
+        puts("\nAvailable unit load states: ");
+        for(i = UNIT_STUB; i < _UNIT_LOAD_STATE_MAX; i++)
+                if (unit_type_table[i])
+                        puts(unit_load_state_table[i]);
+
+        return 0;
+}
+
 static int systemctl_parse_argv(int argc, char *argv[]) {
 
         enum {
@@ -4137,6 +4153,11 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
                         return 0;
 
                 case 't':
+                        if (streq(optarg, "help")) {
+                                help_types();
+                                return 0;
+                        }
+
                         if (unit_type_from_string(optarg) >= 0) {
                                 arg_type = optarg;
                                 break;
@@ -4147,6 +4168,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
                         }
                         log_error("Unkown unit type or load state '%s'.",
                                   optarg);
+                        log_info("Use -t help to see a list of allowed values.");
                         return -EINVAL;
                 case 'p': {
                         char **l;