Hugh McMaster : reg: Only print the name of the registry key if it contains values or we are recursing.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: ec0a799ea8884479d7b56b81fb9fdd106f1a751b
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=ec0a799ea8884479d7b56b81f...

Author: Hugh McMaster 
Date:   Wed Apr 28 19:19:30 2021 +1000

reg: Only print the name of the registry key if it contains values or we are recursing.

Signed-off-by: Hugh McMaster 
Signed-off-by: Alexandre Julliard

---

programs/reg/query.c       | 14 ++++++++++----
 programs/reg/tests/query.c |  2 +-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/programs/reg/query.c b/programs/reg/query.c
index efcd16f8ad5..4af6c7f5449 100644
--- a/programs/reg/query.c
+++ b/programs/reg/query.c
@@ -210,9 +210,10 @@ static int query_value(HKEY hkey, WCHAR *value_name, WCHAR *path, BOOL recurse)
     return 0;
 }

-static int query_all(HKEY hkey, WCHAR *path, BOOL recurse)
+static int query_all(HKEY hkey, WCHAR *path, BOOL recurse, BOOL recursing)
 {
     LONG rc;
+    DWORD num_values;
     DWORD max_value_len = 256, value_len;
     DWORD max_data_bytes = 2048, data_size;
     DWORD subkey_len;
@@ -221,7 +222,12 @@ static int query_all(HKEY hkey, WCHAR *path, BOOL recurse)
     BYTE *data;
     HKEY subkey;

-    output_string(L"%1\n", path);
+    rc = RegQueryInfoKeyW(hkey, NULL, NULL, NULL, NULL, NULL, NULL,
+                          &num_values, NULL, NULL, NULL, NULL);
+    if (rc) return 1;
+
+    if (num_values || recursing)
+        output_string(L"%1\n", path);

value_name = malloc(max_value_len * sizeof(WCHAR));
     data = malloc(max_data_bytes);
@@ -275,7 +281,7 @@ static int query_all(HKEY hkey, WCHAR *path, BOOL recurse)
                 subkey_path = build_subkey_path(path, path_len, subkey_name, subkey_len);
                 if (!RegOpenKeyExW(hkey, subkey_name, 0, KEY_READ, &subkey))
                 {
-                    query_all(subkey, subkey_path, recurse);
+                    query_all(subkey, subkey_path, recurse, TRUE);
                     RegCloseKey(subkey);
                 }
                 free(subkey_path);
@@ -311,7 +317,7 @@ static int run_query(HKEY root, WCHAR *path, WCHAR *key_name, WCHAR *value_name,
             output_message(STRING_MATCHES_FOUND, num_values_found);
     }
     else
-        ret = query_all(hkey, key_name, recurse);
+        ret = query_all(hkey, key_name, recurse, FALSE);

RegCloseKey(hkey);

diff --git a/programs/reg/tests/query.c b/programs/reg/tests/query.c
index a8720da8da1..4ccbab58cb8 100644
--- a/programs/reg/tests/query.c
+++ b/programs/reg/tests/query.c
@@ -282,7 +282,7 @@ static void test_query(void)

read_reg_output("reg query HKCU\" KEY_BASE, buf, sizeof(buf), &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);
-    compare_query(buf, test8a, FALSE, TODO_REG_COMPARE);
+    compare_query(buf, test8a, FALSE, 0);

read_reg_output("reg query HKCU\" KEY_BASE " /s", buf, sizeof(buf), &r);
     ok(r == REG_EXIT_SUCCESS, "got exit code %d, expected 0\n", r);