wine-staging/patches/ntdll-NtQueryEaFile/0001-ntdll-Improve-stub-of-NtQueryEaFile.patch

From 1111d9a53405b19b57a4385f7e2815b9c62238fa Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Sat, 6 Jun 2015 07:03:33 +0800
Subject: [PATCH] ntdll: Improve stub of NtQueryEaFile.

Based on a patch by Qian Hong.
---
 dlls/ntdll/file.c       | 19 ++++++++--
 dlls/ntdll/tests/file.c | 83 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 98 insertions(+), 4 deletions(-)

diff --git a/dlls/ntdll/file.c b/dlls/ntdll/file.c
index 2269ae311a..bed55c6fe7 100644
--- a/dlls/ntdll/file.c
+++ b/dlls/ntdll/file.c
@@ -3962,14 +3962,25 @@ NTSTATUS WINAPI NtQueryVolumeInformationFile( HANDLE handle, PIO_STATUS_BLOCK io
  *  Success: 0. Attributes read into buffer
  *  Failure: An NTSTATUS error code describing the error.
  */
-NTSTATUS WINAPI NtQueryEaFile( HANDLE hFile, PIO_STATUS_BLOCK iosb, PVOID buffer, ULONG length,
+NTSTATUS WINAPI NtQueryEaFile( HANDLE handle, PIO_STATUS_BLOCK iosb, PVOID buffer, ULONG length,
                                BOOLEAN single_entry, PVOID ea_list, ULONG ea_list_len,
                                PULONG ea_index, BOOLEAN restart )
 {
-    FIXME("(%p,%p,%p,%d,%d,%p,%d,%p,%d) stub\n",
-            hFile, iosb, buffer, length, single_entry, ea_list,
+    int fd, needs_close;
+    NTSTATUS status;
+
+    FIXME("(%p,%p,%p,%d,%d,%p,%d,%p,%d) semi-stub\n",
+            handle, iosb, buffer, length, single_entry, ea_list,
             ea_list_len, ea_index, restart);
-    return STATUS_ACCESS_DENIED;
+
+    if ((status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )) != STATUS_SUCCESS)
+        return status;
+
+    if (buffer && length)
+        memset( buffer, 0, length );
+
+    if (needs_close) close( fd );
+    return STATUS_NO_EAS_ON_FILE;
 }
 
 
diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c
index 1c3d0bc9a9..e210cbe9f2 100644
--- a/dlls/ntdll/tests/file.c
+++ b/dlls/ntdll/tests/file.c
@@ -85,6 +85,7 @@ static NTSTATUS (WINAPI *pNtQueryDirectoryFile)(HANDLE,HANDLE,PIO_APC_ROUTINE,PV
 static NTSTATUS (WINAPI *pNtQueryVolumeInformationFile)(HANDLE,PIO_STATUS_BLOCK,PVOID,ULONG,FS_INFORMATION_CLASS);
 static NTSTATUS (WINAPI *pNtQueryFullAttributesFile)(const OBJECT_ATTRIBUTES*, FILE_NETWORK_OPEN_INFORMATION*);
 static NTSTATUS (WINAPI *pNtFlushBuffersFile)(HANDLE, IO_STATUS_BLOCK*);
+static NTSTATUS (WINAPI *pNtQueryEaFile)(HANDLE,PIO_STATUS_BLOCK,PVOID,ULONG,BOOLEAN,PVOID,ULONG,PULONG,BOOLEAN);
 
 static WCHAR fooW[] = {'f','o','o',0};
 
@@ -4994,6 +4995,86 @@ static void test_flush_buffers_file(void)
     DeleteFileA(buffer);
 }
 
+static void test_query_ea(void)
+{
+    #define EA_BUFFER_SIZE 4097
+    unsigned char data[EA_BUFFER_SIZE + 8];
+    unsigned char *buffer = (void *)(((DWORD_PTR)data + 7) & ~7);
+    DWORD buffer_len, i;
+    IO_STATUS_BLOCK io;
+    NTSTATUS status;
+    HANDLE handle;
+
+    if (!(handle = create_temp_file(0))) return;
+
+    /* test with INVALID_HANDLE_VALUE */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    memset(buffer, 0xcc, EA_BUFFER_SIZE);
+    buffer_len = EA_BUFFER_SIZE - 1;
+    status = pNtQueryEaFile(INVALID_HANDLE_VALUE, &io, buffer, buffer_len, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_OBJECT_TYPE_MISMATCH, "expected STATUS_OBJECT_TYPE_MISMATCH, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+    ok(buffer[0] == 0xcc, "data at position 0 overwritten\n");
+
+    /* test with 0xdeadbeef */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    memset(buffer, 0xcc, EA_BUFFER_SIZE);
+    buffer_len = EA_BUFFER_SIZE - 1;
+    status = pNtQueryEaFile((void *)0xdeadbeef, &io, buffer, buffer_len, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_INVALID_HANDLE, "expected STATUS_INVALID_HANDLE, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+    ok(buffer[0] == 0xcc, "data at position 0 overwritten\n");
+
+    /* test without buffer */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    status = pNtQueryEaFile(handle, &io, NULL, 0, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_NO_EAS_ON_FILE, "expected STATUS_NO_EAS_ON_FILE, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+
+    /* test with zero buffer */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    status = pNtQueryEaFile(handle, &io, buffer, 0, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_NO_EAS_ON_FILE, "expected STATUS_NO_EAS_ON_FILE, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+
+    /* test with very small buffer */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    memset(buffer, 0xcc, EA_BUFFER_SIZE);
+    buffer_len = 4;
+    status = pNtQueryEaFile(handle, &io, buffer, buffer_len, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_NO_EAS_ON_FILE, "expected STATUS_NO_EAS_ON_FILE, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+    for (i = 0; i < buffer_len && !buffer[i]; i++);
+    ok(i == buffer_len,  "expected %u bytes filled with 0x00, got %u bytes\n", buffer_len, i);
+    ok(buffer[i] == 0xcc, "data at position %u overwritten\n", buffer[i]);
+
+    /* test with very big buffer */
+    U(io).Status = 0xdeadbeef;
+    io.Information = 0xdeadbeef;
+    memset(buffer, 0xcc, EA_BUFFER_SIZE);
+    buffer_len = EA_BUFFER_SIZE - 1;
+    status = pNtQueryEaFile(handle, &io, buffer, buffer_len, TRUE, NULL, 0, NULL, FALSE);
+    ok(status == STATUS_NO_EAS_ON_FILE, "expected STATUS_NO_EAS_ON_FILE, got %x\n", status);
+    ok(U(io).Status == 0xdeadbeef, "expected 0xdeadbeef, got %x\n", U(io).Status);
+    ok(io.Information == 0xdeadbeef, "expected 0xdeadbeef, got %lu\n", io.Information);
+    for (i = 0; i < buffer_len && !buffer[i]; i++);
+    ok(i == buffer_len,  "expected %u bytes filled with 0x00, got %u bytes\n", buffer_len, i);
+    ok(buffer[i] == 0xcc, "data at position %u overwritten\n", buffer[i]);
+
+    CloseHandle(handle);
+    #undef EA_BUFFER_SIZE
+}
+
 static void test_file_readonly_access(void)
 {
     static const DWORD default_sharing = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
@@ -5483,6 +5564,7 @@ START_TEST(file)
     pNtQueryVolumeInformationFile = (void *)GetProcAddress(hntdll, "NtQueryVolumeInformationFile");
     pNtQueryFullAttributesFile = (void *)GetProcAddress(hntdll, "NtQueryFullAttributesFile");
     pNtFlushBuffersFile = (void *)GetProcAddress(hntdll, "NtFlushBuffersFile");
+    pNtQueryEaFile          = (void *)GetProcAddress(hntdll, "NtQueryEaFile");
 
     test_read_write();
     test_NtCreateFile();
@@ -5513,6 +5595,7 @@ START_TEST(file)
     test_query_volume_information_file();
     test_query_attribute_information_file();
     test_ioctl();
+    test_query_ea();
     test_flush_buffers_file();
     test_reparse_points();
 }
-- 
2.23.0