reg: Fail if duplicate command-line switches are passed to 'reg add'.

programs/reg/add.c

@@ -227,6 +227,7 @@ int reg_add(int argc, WCHAR *argvW[])
 
             if (!lstrcmpiW(str, L"ve"))
             {
+                if (value_empty) goto invalid;
                 value_empty = TRUE;
                 continue;
             }
@@ -249,11 +250,12 @@ int reg_add(int argc, WCHAR *argvW[])
                 break;
             case 's':
                 str = argvW[++i];
-                if (!str || lstrlenW(str) != 1)
+                if (separator || !str || lstrlenW(str) != 1)
                     goto invalid;
                 separator = str[0];
                 break;
             case 'f':
+                if (force) goto invalid;
                 force = TRUE;
                 break;
             default:

programs/reg/tests/add.c

@@ -234,7 +234,7 @@ static void test_add(void)
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
 
     run_reg_exe("reg add HKCU\\" KEY_BASE " /f /f", &r);
-    todo_wine ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
+    ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
 
     open_key(HKEY_CURRENT_USER, KEY_BASE, 0, &hkey);
 
@@ -295,7 +295,7 @@ static void test_add(void)
     verify_reg(hkey, NULL, REG_SZ, "", 1, 0);
 
     run_reg_exe("reg add HKCU\\" KEY_BASE " /ve /f /ve", &r);
-    todo_wine ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
+    ok(r == REG_EXIT_FAILURE, "got exit code %d, expected 1\n", r);
 
     run_reg_exe("reg add HKEY_CURRENT_USER\\" KEY_BASE " /ve /d WineTEST /f", &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);