[PATCH v3 0/1] MR9291: tdh: Add semi-stub for TdhEnumerateProviders().

[Paul Gofman (＠gofman)]

--
  v3: tdh: Add semi-stub for TdhEnumerateProviders().

https://gitlab.winehq.org/wine/wine/-/merge_requests/9291

[PATCH v3 1/1] tdh: Add semi-stub for TdhEnumerateProviders().

[Paul Gofman]

From: Paul Gofman

---
 configure.ac               |  1 +
 dlls/tdh/Makefile.in       |  1 +
 dlls/tdh/tdh.spec          |  2 +-
 dlls/tdh/tdh_main.c        | 17 ++++++++++
 dlls/tdh/tests/Makefile.in |  5 +++
 dlls/tdh/tests/tdh.c       | 63 ++++++++++++++++++++++++++++++++++++++
 include/Makefile.in        |  1 +
 include/tdh.h              | 42 +++++++++++++++++++++++++
 8 files changed, 131 insertions(+), 1 deletion(-)
 create mode 100644 dlls/tdh/tests/Makefile.in
 create mode 100644 dlls/tdh/tests/tdh.c
 create mode 100644 include/tdh.h

diff --git a/configure.ac b/configure.ac
index a7f00402498..142a93b570a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3201,6 +3201,7 @@ WINE_CONFIG_MAKEFILE(dlls/taskschd)
 WINE_CONFIG_MAKEFILE(dlls/taskschd/tests)
 WINE_CONFIG_MAKEFILE(dlls/tbs)
 WINE_CONFIG_MAKEFILE(dlls/tdh)
+WINE_CONFIG_MAKEFILE(dlls/tdh/tests)
 WINE_CONFIG_MAKEFILE(dlls/tdi.sys)
 WINE_CONFIG_MAKEFILE(dlls/threadpoolwinrt)
 WINE_CONFIG_MAKEFILE(dlls/threadpoolwinrt/tests)
diff --git a/dlls/tdh/Makefile.in b/dlls/tdh/Makefile.in
index 063718160d8..971bf129d62 100644
--- a/dlls/tdh/Makefile.in
+++ b/dlls/tdh/Makefile.in
@@ -1,4 +1,5 @@
 MODULE    = tdh.dll
+IMPORTLIB = tdh

EXTRADLLFLAGS = -Wb,--prefer-native

diff --git a/dlls/tdh/tdh.spec b/dlls/tdh/tdh.spec
index cde397c3899..0a2663714fe 100644
--- a/dlls/tdh/tdh.spec
+++ b/dlls/tdh/tdh.spec
@@ -7,7 +7,7 @@
 @ stub TdhEnumerateManifestProviderEvents
 @ stub TdhEnumerateProviderFieldInformation
 @ stub TdhEnumerateProviderFilters
-@ stub TdhEnumerateProviders
+@ stdcall TdhEnumerateProviders(ptr ptr)
 @ stub TdhEnumerateRemoteWBEMProviderFieldInformation
 @ stub TdhEnumerateRemoteWBEMProviders
 @ stub TdhFormatProperty
diff --git a/dlls/tdh/tdh_main.c b/dlls/tdh/tdh_main.c
index 60f32976b98..1b46ac793f0 100644
--- a/dlls/tdh/tdh_main.c
+++ b/dlls/tdh/tdh_main.c
@@ -23,6 +23,7 @@
 #include "windef.h"
 #include "winbase.h"
 #include "winternl.h"
+#include "tdh.h"
 #include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(tdh);
@@ -38,3 +39,19 @@ ULONG WINAPI TdhLoadManifestFromBinary(LPWSTR binary)
     FIXME("(%s): stub\n", debugstr_w(binary));
     return STATUS_SUCCESS;
 }
+
+ULONG WINAPI TdhEnumerateProviders( PROVIDER_ENUMERATION_INFO *buffer, ULONG *buffer_size )
+{
+    FIXME( "%p %p semi-stub.\n", buffer, buffer_size );
+
+    if (!buffer_size) return ERROR_INVALID_PARAMETER;
+    if (*buffer_size && !buffer) return ERROR_INVALID_PARAMETER;
+
+    if (*buffer_size < offsetof(PROVIDER_ENUMERATION_INFO, TraceProviderInfoArray))
+    {
+        *buffer_size = offsetof(PROVIDER_ENUMERATION_INFO, TraceProviderInfoArray);
+        return ERROR_INSUFFICIENT_BUFFER;
+    }
+    buffer->NumberOfProviders = 0;
+    return ERROR_SUCCESS;
+}
diff --git a/dlls/tdh/tests/Makefile.in b/dlls/tdh/tests/Makefile.in
new file mode 100644
index 00000000000..4e0c6aeddb1
--- /dev/null
+++ b/dlls/tdh/tests/Makefile.in
@@ -0,0 +1,5 @@
+TESTDLL   = tdh.dll
+IMPORTS   = tdh
+
+SOURCES = \
+	tdh.c
diff --git a/dlls/tdh/tests/tdh.c b/dlls/tdh/tests/tdh.c
new file mode 100644
index 00000000000..731e78aaa7e
--- /dev/null
+++ b/dlls/tdh/tests/tdh.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2025 Paul Gofman for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+
+#include "windef.h"
+#include "winbase.h"
+
+#include "tdh.h"
+
+#include "wine/test.h"
+
+static void test_providers(void)
+{
+    PROVIDER_ENUMERATION_INFO *info;
+    ULONG size, size2;
+    DWORD err;
+
+    err = TdhEnumerateProviders( NULL, NULL );
+    ok( err == ERROR_INVALID_PARAMETER, "got %lu.\n", err );
+
+    size = 1;
+    err = TdhEnumerateProviders( NULL, &size );
+    ok( err == ERROR_INVALID_PARAMETER, "got %lu.\n", err );
+    ok( size == 1, "got %lu.\n", size );
+
+    size = 0;
+    err = TdhEnumerateProviders( NULL, &size );
+    ok( err == ERROR_INSUFFICIENT_BUFFER, "got %lu.\n", err );
+    ok( size >= offsetof( PROVIDER_ENUMERATION_INFO, TraceProviderInfoArray ), "got %lu.\n", size );
+    info = malloc( size );
+    size2 = 1;
+    err = TdhEnumerateProviders( info, &size2 );
+    ok( err == ERROR_INSUFFICIENT_BUFFER, "got %lu.\n", err );
+    ok( size2 == size, "got %lu, %lu.\n", size2, size );
+
+    size2 = size;
+    err = TdhEnumerateProviders( info, &size2 );
+    ok( !err, "got %lu.\n", err );
+    ok( size2 == size, "got %lu, %lu.\n", size2, size );
+    size2 = offsetof( PROVIDER_ENUMERATION_INFO, TraceProviderInfoArray[info->NumberOfProviders] );
+    ok( size >= size2, "got %lu, expected %lu.\n", size, size2 );
+}
+
+START_TEST(tdh)
+{
+    test_providers();
+}
diff --git a/include/Makefile.in b/include/Makefile.in
index a43168baf1f..6b33733a6f2 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -785,6 +785,7 @@ SOURCES = \
    tchar.h \
    tcpestats.h \
    tcpmib.h \
+	tdh.h \
    textserv.h \
    textstor.idl \
    threadpoolapiset.h \
diff --git a/include/tdh.h b/include/tdh.h
new file mode 100644
index 00000000000..007ccfc7fb7
--- /dev/null
+++ b/include/tdh.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2025 Paul Gofman for CodeWeavers
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __WINE_TDH_H
+#define __WINE_TDH_H
+
+ULONG WINAPI TdhLoadManifest( WCHAR *manifest );
+ULONG WINAPI TdhLoadManifestFromBinary( WCHAR *binary );
+
+typedef struct _TRACE_PROVIDER_INFO
+{
+    GUID ProviderGuid;
+    ULONG SchemaSource;
+    ULONG ProviderNameOffset;
+}
+TRACE_PROVIDER_INFO;
+
+typedef struct _PROVIDER_ENUMERATION_INFO
+{
+    ULONG NumberOfProviders;
+    ULONG Reserved;
+    TRACE_PROVIDER_INFO TraceProviderInfoArray[ANYSIZE_ARRAY];
+}
+PROVIDER_ENUMERATION_INFO;
+
+ULONG WINAPI TdhEnumerateProviders( PROVIDER_ENUMERATION_INFO *buffer, ULONG *buffer_size );
+#endif