[2/3] advapi32: Do not fail in RegQueryInfoKey if *class_len is 0.
Thomas Faber
thomas.faber at reactos.org
Tue May 19 09:15:13 CDT 2015
From 75688cfe232ee1ba2d6617693a3766f2f01f55a4 Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber at reactos.org>
Date: Tue, 19 May 2015 10:03:41 -0400
Subject: advapi32: Do not fail in RegQueryInfoKey if *class_len is 0.
---
dlls/advapi32/registry.c | 5 +++--
dlls/advapi32/tests/registry.c | 8 ++++----
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/dlls/advapi32/registry.c b/dlls/advapi32/registry.c
index 633c0c4..0697c9c 100644
--- a/dlls/advapi32/registry.c
+++ b/dlls/advapi32/registry.c
@@ -849,7 +849,7 @@ LSTATUS WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPD
status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size );
if (status && status != STATUS_BUFFER_OVERFLOW) goto done;
- if (class)
+ if (class && class_len && *class_len)
{
/* retry with a dynamically allocated buffer */
while (status == STATUS_BUFFER_OVERFLOW)
@@ -1052,7 +1052,8 @@ LSTATUS WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDW
RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength);
if (class_len)
{
- if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
+ if (*class_len == 0) class = NULL;
+ if (class && len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW;
*class_len = len;
}
if (class && !status)
diff --git a/dlls/advapi32/tests/registry.c b/dlls/advapi32/tests/registry.c
index c862b46..2aca837 100644
--- a/dlls/advapi32/tests/registry.c
+++ b/dlls/advapi32/tests/registry.c
@@ -1747,7 +1747,7 @@ static void test_reg_query_info(void)
/* with subkey & default value */
ret = RegQueryInfoKeyA(subkey, NULL, &classlen, NULL, &subkeys, &maxsubkeylen, &maxclasslen, &values, &maxvaluenamelen, &maxvaluelen, &sdlen, &lastwrite);
- todo_wine ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
+ ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
ok(classlen == strlen(subkey_class), "classlen = %u\n", classlen);
ok(subkeys == 1, "subkeys = %u\n", subkeys);
ok(maxsubkeylen == strlen("subsubkey"), "maxsubkeylen = %u\n", maxsubkeylen);
@@ -1780,7 +1780,7 @@ static void test_reg_query_info(void)
/* with named value */
ret = RegQueryInfoKeyA(subkey, NULL, &classlen, NULL, &subkeys, &maxsubkeylen, &maxclasslen, &values, &maxvaluenamelen, &maxvaluelen, &sdlen, &lastwrite);
- todo_wine ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
+ ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
ok(values == 3, "values = %u\n", values);
ok(maxvaluenamelen == strlen("value one"), "maxvaluenamelen = %u\n", maxvaluenamelen);
ok(maxvaluelen == sizeof("second value data") * sizeof(WCHAR), "maxvaluelen = %u\n", maxvaluelen);
@@ -1795,7 +1795,7 @@ static void test_reg_query_info(void)
memset(classbuffer, 0x55, sizeof(classbuffer));
classlen = 0;
ret = RegQueryInfoKeyA(subkey, classbuffer, &classlen, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
- todo_wine ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
+ ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
ok(classlen == strlen(subkey_class) /* win2k */ ||
classlen == 0, "classlen = %u\n", classlen);
memset(expectbuffer, 0x55, sizeof(expectbuffer));
@@ -1804,7 +1804,7 @@ static void test_reg_query_info(void)
memset(classbufferW, 0x55, sizeof(classbufferW));
classlen = 0;
ret = RegQueryInfoKeyW(subkey, classbufferW, &classlen, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
- todo_wine ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
+ ok(ret == ERROR_SUCCESS, "ret = %d\n", ret);
ok(classlen == strlen(subkey_class) /* win2k */ ||
classlen == 0, "classlen = %u\n", classlen);
memset(expectbufferW, 0x55, sizeof(expectbufferW));
--
1.7.1
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