*/
/*
- * Copyright (C) 2013, 2014 Eric Biggers
+ * Copyright (C) 2013, 2014, 2015 Eric Biggers
*
- * This file is part of wimlib, a library for working with WIM files.
+ * This file 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 3 of the License, or (at your option) any
+ * later version.
*
- * wimlib is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 3 of the License, or (at your option)
- * any later version.
- *
- * wimlib 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 General Public License for more
+ * This file 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 General Public License
- * along with wimlib; if not, see http://www.gnu.org/licenses/.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this file; if not, see http://www.gnu.org/licenses/.
*/
#ifdef __WIN32__
# include "config.h"
#endif
-#include <errno.h>
-
-#include <winternl.h>
-
#include "wimlib/win32_common.h"
-#include "wimlib/assert.h"
+
#include "wimlib/error.h"
#include "wimlib/util.h"
-static int
-win32_error_to_errno(DWORD err_code)
-{
- /* This mapping is that used in Cygwin.
- * Some of these choices are arbitrary. */
- switch (err_code) {
- case ERROR_ACCESS_DENIED:
- return EACCES;
- case ERROR_ACTIVE_CONNECTIONS:
- return EAGAIN;
- case ERROR_ALREADY_EXISTS:
- return EEXIST;
- case ERROR_BAD_DEVICE:
- return ENODEV;
- case ERROR_BAD_EXE_FORMAT:
- return ENOEXEC;
- case ERROR_BAD_NETPATH:
- return ENOENT;
- case ERROR_BAD_NET_NAME:
- return ENOENT;
- case ERROR_BAD_NET_RESP:
- return ENOSYS;
- case ERROR_BAD_PATHNAME:
- return ENOENT;
- case ERROR_BAD_PIPE:
- return EINVAL;
- case ERROR_BAD_UNIT:
- return ENODEV;
- case ERROR_BAD_USERNAME:
- return EINVAL;
- case ERROR_BEGINNING_OF_MEDIA:
- return EIO;
- case ERROR_BROKEN_PIPE:
- return EPIPE;
- case ERROR_BUSY:
- return EBUSY;
- case ERROR_BUS_RESET:
- return EIO;
- case ERROR_CALL_NOT_IMPLEMENTED:
- return ENOSYS;
- case ERROR_CANNOT_MAKE:
- return EPERM;
- case ERROR_CHILD_NOT_COMPLETE:
- return EBUSY;
- case ERROR_COMMITMENT_LIMIT:
- return EAGAIN;
- case ERROR_CRC:
- return EIO;
- case ERROR_DEVICE_DOOR_OPEN:
- return EIO;
- case ERROR_DEVICE_IN_USE:
- return EAGAIN;
- case ERROR_DEVICE_REQUIRES_CLEANING:
- return EIO;
- case ERROR_DIRECTORY:
- return ENOTDIR;
- case ERROR_DIR_NOT_EMPTY:
- return ENOTEMPTY;
- case ERROR_DISK_CORRUPT:
- return EIO;
- case ERROR_DISK_FULL:
- return ENOSPC;
-#ifdef ENOTUNIQ
- case ERROR_DUP_NAME:
- return ENOTUNIQ;
-#endif
- case ERROR_EAS_DIDNT_FIT:
- return ENOSPC;
-#ifdef ENOTSUP
- case ERROR_EAS_NOT_SUPPORTED:
- return ENOTSUP;
-#endif
- case ERROR_EA_LIST_INCONSISTENT:
- return EINVAL;
- case ERROR_EA_TABLE_FULL:
- return ENOSPC;
- case ERROR_END_OF_MEDIA:
- return ENOSPC;
- case ERROR_EOM_OVERFLOW:
- return EIO;
- case ERROR_EXE_MACHINE_TYPE_MISMATCH:
- return ENOEXEC;
- case ERROR_EXE_MARKED_INVALID:
- return ENOEXEC;
- case ERROR_FILEMARK_DETECTED:
- return EIO;
- case ERROR_FILENAME_EXCED_RANGE:
- return ENAMETOOLONG;
- case ERROR_FILE_CORRUPT:
- return EEXIST;
- case ERROR_FILE_EXISTS:
- return EEXIST;
- case ERROR_FILE_INVALID:
- return ENXIO;
- case ERROR_FILE_NOT_FOUND:
- return ENOENT;
- case ERROR_HANDLE_DISK_FULL:
- return ENOSPC;
-#ifdef ENODATA
- case ERROR_HANDLE_EOF:
- return ENODATA;
-#endif
- case ERROR_INVALID_ADDRESS:
- return EINVAL;
- case ERROR_INVALID_AT_INTERRUPT_TIME:
- return EINTR;
- case ERROR_INVALID_BLOCK_LENGTH:
- return EIO;
- case ERROR_INVALID_DATA:
- return EINVAL;
- case ERROR_INVALID_DRIVE:
- return ENODEV;
- case ERROR_INVALID_EA_NAME:
- return EINVAL;
- case ERROR_INVALID_EXE_SIGNATURE:
- return ENOEXEC;
-#ifdef EBADRQC
- case ERROR_INVALID_FUNCTION:
- return EBADRQC;
-#endif
- case ERROR_INVALID_HANDLE:
- return EBADF;
- case ERROR_INVALID_NAME:
- return ENOENT;
- case ERROR_INVALID_PARAMETER:
- return EINVAL;
- case ERROR_INVALID_SIGNAL_NUMBER:
- return EINVAL;
- case ERROR_IOPL_NOT_ENABLED:
- return ENOEXEC;
- case ERROR_IO_DEVICE:
- return EIO;
- case ERROR_IO_INCOMPLETE:
- return EAGAIN;
- case ERROR_IO_PENDING:
- return EAGAIN;
- case ERROR_LOCK_VIOLATION:
- return EBUSY;
- case ERROR_MAX_THRDS_REACHED:
- return EAGAIN;
- case ERROR_META_EXPANSION_TOO_LONG:
- return EINVAL;
- case ERROR_MOD_NOT_FOUND:
- return ENOENT;
-#ifdef EMSGSIZE
- case ERROR_MORE_DATA:
- return EMSGSIZE;
-#endif
- case ERROR_NEGATIVE_SEEK:
- return EINVAL;
- case ERROR_NETNAME_DELETED:
- return ENOENT;
- case ERROR_NOACCESS:
- return EFAULT;
- case ERROR_NONE_MAPPED:
- return EINVAL;
- case ERROR_NONPAGED_SYSTEM_RESOURCES:
- return EAGAIN;
-#ifdef ENOLINK
- case ERROR_NOT_CONNECTED:
- return ENOLINK;
-#endif
- case ERROR_NOT_ENOUGH_MEMORY:
- return ENOMEM;
- case ERROR_NOT_OWNER:
- return EPERM;
-#ifdef ENOMEDIUM
- case ERROR_NOT_READY:
- return ENOMEDIUM;
-#endif
- case ERROR_NOT_SAME_DEVICE:
- return EXDEV;
- case ERROR_NOT_SUPPORTED:
- return ENOSYS;
- case ERROR_NO_DATA:
- return EPIPE;
- case ERROR_NO_DATA_DETECTED:
- return EIO;
-#ifdef ENOMEDIUM
- case ERROR_NO_MEDIA_IN_DRIVE:
- return ENOMEDIUM;
-#endif
-#ifdef ENMFILE
- case ERROR_NO_MORE_FILES:
- return ENMFILE;
-#endif
-#ifdef ENMFILE
- case ERROR_NO_MORE_ITEMS:
- return ENMFILE;
-#endif
- case ERROR_NO_MORE_SEARCH_HANDLES:
- return ENFILE;
- case ERROR_NO_PROC_SLOTS:
- return EAGAIN;
- case ERROR_NO_SIGNAL_SENT:
- return EIO;
- case ERROR_NO_SYSTEM_RESOURCES:
- return EFBIG;
- case ERROR_NO_TOKEN:
- return EINVAL;
- case ERROR_OPEN_FAILED:
- return EIO;
- case ERROR_OPEN_FILES:
- return EAGAIN;
- case ERROR_OUTOFMEMORY:
- return ENOMEM;
- case ERROR_PAGED_SYSTEM_RESOURCES:
- return EAGAIN;
- case ERROR_PAGEFILE_QUOTA:
- return EAGAIN;
- case ERROR_PATH_NOT_FOUND:
- return ENOENT;
- case ERROR_PIPE_BUSY:
- return EBUSY;
- case ERROR_PIPE_CONNECTED:
- return EBUSY;
-#ifdef ECOMM
- case ERROR_PIPE_LISTENING:
- return ECOMM;
- case ERROR_PIPE_NOT_CONNECTED:
- return ECOMM;
-#endif
- case ERROR_POSSIBLE_DEADLOCK:
- return EDEADLOCK;
- case ERROR_PRIVILEGE_NOT_HELD:
- return EPERM;
- case ERROR_PROCESS_ABORTED:
- return EFAULT;
- case ERROR_PROC_NOT_FOUND:
- return ESRCH;
-#ifdef ENONET
- case ERROR_REM_NOT_LIST:
- return ENONET;
-#endif
- case ERROR_SECTOR_NOT_FOUND:
- return EINVAL;
- case ERROR_SEEK:
- return EINVAL;
- case ERROR_SETMARK_DETECTED:
- return EIO;
- case ERROR_SHARING_BUFFER_EXCEEDED:
- return ENOLCK;
- case ERROR_SHARING_VIOLATION:
- return EBUSY;
- case ERROR_SIGNAL_PENDING:
- return EBUSY;
- case ERROR_SIGNAL_REFUSED:
- return EIO;
-#ifdef ELIBBAD
- case ERROR_SXS_CANT_GEN_ACTCTX:
- return ELIBBAD;
-#endif
- case ERROR_THREAD_1_INACTIVE:
- return EINVAL;
- case ERROR_TOO_MANY_LINKS:
- return EMLINK;
- case ERROR_TOO_MANY_OPEN_FILES:
- return EMFILE;
- case ERROR_WAIT_NO_CHILDREN:
- return ECHILD;
- case ERROR_WORKING_SET_QUOTA:
- return EAGAIN;
- case ERROR_WRITE_PROTECT:
- return EROFS;
- default:
- return -1;
- }
-}
-
-
-void
-set_errno_from_win32_error(DWORD err)
-{
- errno = win32_error_to_errno(err);
-}
-
-void
-set_errno_from_GetLastError(void)
-{
- set_errno_from_win32_error(GetLastError());
-}
-
-void
-set_errno_from_nt_status(NTSTATUS status)
-{
- set_errno_from_win32_error((*func_RtlNtStatusToDosError)(status));
-}
-
-/* Given a Windows-style path, return the number of characters of the prefix
- * that specify the path to the root directory of a drive, or return 0 if the
- * drive is relative (or at least on the current drive, in the case of
- * absolute-but-not-really-absolute paths like \Windows\System32) */
-static size_t
-win32_path_drive_spec_len(const wchar_t *path)
-{
- size_t n = 0;
-
- if (!wcsncmp(path, L"\\\\?\\", 4)) {
- /* \\?\-prefixed path. Check for following drive letter and
- * path separator. */
- if (path[4] != L'\0' && path[5] == L':' &&
- is_any_path_separator(path[6]))
- n = 7;
- } else {
- /* Not a \\?\-prefixed path. Check for an initial drive letter
- * and path separator. */
- if (path[0] != L'\0' && path[1] == L':' &&
- is_any_path_separator(path[2]))
- n = 3;
- }
- /* Include any additional path separators.*/
- if (n > 0)
- while (is_any_path_separator(path[n]))
- n++;
- return n;
-}
-
-bool
-win32_path_is_root_of_drive(const wchar_t *path)
-{
- size_t drive_spec_len;
- wchar_t full_path[32768];
- DWORD ret;
-
- ret = GetFullPathName(path, ARRAY_LEN(full_path), full_path, NULL);
- if (ret > 0 && ret < ARRAY_LEN(full_path))
- path = full_path;
-
- /* Explicit drive letter and path separator? */
- drive_spec_len = win32_path_drive_spec_len(path);
- if (drive_spec_len > 0 && path[drive_spec_len] == L'\0')
- return true;
-
- /* All path separators? */
- for (const wchar_t *p = path; *p != L'\0'; p++)
- if (!is_any_path_separator(*p))
- return false;
- return true;
-}
-
-
-/* Given a path, which may not yet exist, get a set of flags that describe the
- * features of the volume the path is on. */
-int
-win32_get_vol_flags(const wchar_t *path, unsigned *vol_flags_ret,
- bool *supports_SetFileShortName_ret)
-{
- wchar_t *volume;
- BOOL bret;
- DWORD vol_flags;
- size_t drive_spec_len;
- wchar_t filesystem_name[MAX_PATH + 1];
-
- if (supports_SetFileShortName_ret)
- *supports_SetFileShortName_ret = false;
-
- drive_spec_len = win32_path_drive_spec_len(path);
-
- if (drive_spec_len == 0)
- if (path[0] != L'\0' && path[1] == L':') /* Drive-relative path? */
- drive_spec_len = 2;
-
- if (drive_spec_len == 0) {
- /* Path does not start with a drive letter; use the volume of
- * the current working directory. */
- volume = NULL;
- } else {
- /* Path starts with a drive letter (or \\?\ followed by a drive
- * letter); use it. */
- volume = alloca((drive_spec_len + 2) * sizeof(wchar_t));
- wmemcpy(volume, path, drive_spec_len);
- /* Add trailing backslash in case this was a drive-relative
- * path. */
- volume[drive_spec_len] = L'\\';
- volume[drive_spec_len + 1] = L'\0';
- }
- bret = GetVolumeInformation(
- volume, /* lpRootPathName */
- NULL, /* lpVolumeNameBuffer */
- 0, /* nVolumeNameSize */
- NULL, /* lpVolumeSerialNumber */
- NULL, /* lpMaximumComponentLength */
- &vol_flags, /* lpFileSystemFlags */
- filesystem_name, /* lpFileSystemNameBuffer */
- ARRAY_LEN(filesystem_name)); /* nFileSystemNameSize */
- if (!bret) {
- set_errno_from_GetLastError();
- WARNING_WITH_ERRNO("Failed to get volume information for "
- "path \"%ls\"", path);
- vol_flags = 0xffffffff;
- goto out;
- }
-
- if (wcsstr(filesystem_name, L"NTFS")) {
- /* FILE_SUPPORTS_HARD_LINKS is only supported on Windows 7 and later.
- * Force it on anyway if filesystem is NTFS. */
- vol_flags |= FILE_SUPPORTS_HARD_LINKS;
-
- if (supports_SetFileShortName_ret)
- *supports_SetFileShortName_ret = true;
- }
-
-out:
- DEBUG("using vol_flags = %x", vol_flags);
- *vol_flags_ret = vol_flags;
- return 0;
-}
-
static bool
win32_modify_privilege(const wchar_t *privilege, bool enable)
{
win32_modify_apply_privileges(false);
}
-HANDLE
-win32_open_existing_file(const wchar_t *path, DWORD dwDesiredAccess)
-{
- return CreateFile(path,
- dwDesiredAccess,
- FILE_SHARE_READ,
- NULL, /* lpSecurityAttributes */
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS |
- FILE_FLAG_OPEN_REPARSE_POINT,
- NULL /* hTemplateFile */);
-}
-
/* Pointers to dynamically loaded functions */
-/* kernel32.dll: Vista and later */
-BOOL (WINAPI *func_CreateSymbolicLinkW)(const wchar_t *lpSymlinkFileName,
- const wchar_t *lpTargetFileName,
- DWORD dwFlags);
-
/* ntdll.dll */
+NTSTATUS (WINAPI *func_NtCreateFile)(PHANDLE FileHandle,
+ ACCESS_MASK DesiredAccess,
+ POBJECT_ATTRIBUTES ObjectAttributes,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ PLARGE_INTEGER AllocationSize,
+ ULONG FileAttributes,
+ ULONG ShareAccess,
+ ULONG CreateDisposition,
+ ULONG CreateOptions,
+ PVOID EaBuffer,
+ ULONG EaLength);
+
NTSTATUS (WINAPI *func_NtOpenFile) (PHANDLE FileHandle,
ACCESS_MASK DesiredAccess,
POBJECT_ATTRIBUTES ObjectAttributes,
PLARGE_INTEGER ByteOffset,
PULONG Key);
-NTSTATUS (WINAPI *func_NtOpenFile) (PHANDLE FileHandle,
- ACCESS_MASK DesiredAccess,
- POBJECT_ATTRIBUTES ObjectAttributes,
- PIO_STATUS_BLOCK IoStatusBlock,
- ULONG ShareAccess,
- ULONG OpenOptions);
+NTSTATUS (WINAPI *func_NtWriteFile) (HANDLE FileHandle,
+ HANDLE Event,
+ PIO_APC_ROUTINE ApcRoutine,
+ PVOID ApcContext,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ PVOID Buffer,
+ ULONG Length,
+ PLARGE_INTEGER ByteOffset,
+ PULONG Key);
NTSTATUS (WINAPI *func_NtQueryInformationFile)(HANDLE FileHandle,
PIO_STATUS_BLOCK IoStatusBlock,
ULONG Length,
FS_INFORMATION_CLASS FsInformationClass);
+NTSTATUS (WINAPI *func_NtSetInformationFile)(HANDLE FileHandle,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ PVOID FileInformation,
+ ULONG Length,
+ FILE_INFORMATION_CLASS FileInformationClass);
+
NTSTATUS (WINAPI *func_NtSetSecurityObject)(HANDLE Handle,
SECURITY_INFORMATION SecurityInformation,
PSECURITY_DESCRIPTOR SecurityDescriptor);
+NTSTATUS (WINAPI *func_NtFsControlFile) (HANDLE FileHandle,
+ HANDLE Event,
+ PIO_APC_ROUTINE ApcRoutine,
+ PVOID ApcContext,
+ PIO_STATUS_BLOCK IoStatusBlock,
+ ULONG FsControlCode,
+ PVOID InputBuffer,
+ ULONG InputBufferLength,
+ PVOID OutputBuffer,
+ ULONG OutputBufferLength);
+
NTSTATUS (WINAPI *func_NtClose) (HANDLE Handle);
DWORD (WINAPI *func_RtlNtStatusToDosError)(NTSTATUS status);
+BOOLEAN (WINAPI *func_RtlDosPathNameToNtPathName_U)
+ (IN PCWSTR DosName,
+ OUT PUNICODE_STRING NtName,
+ OUT PCWSTR *PartName,
+ OUT PRTL_RELATIVE_NAME_U RelativeName);
+
+NTSTATUS (WINAPI *func_RtlDosPathNameToNtPathName_U_WithStatus)
+ (IN PCWSTR DosName,
+ OUT PUNICODE_STRING NtName,
+ OUT PCWSTR *PartName,
+ OUT PRTL_RELATIVE_NAME_U RelativeName);
+
NTSTATUS (WINAPI *func_RtlCreateSystemVolumeInformationFolder)
(PCUNICODE_STRING VolumeRootPath);
-static OSVERSIONINFO windows_version_info = {
- .dwOSVersionInfoSize = sizeof(OSVERSIONINFO),
-};
-
static bool acquired_privileges = false;
-bool
-windows_version_is_at_least(unsigned major, unsigned minor)
-{
- return windows_version_info.dwMajorVersion > major ||
- (windows_version_info.dwMajorVersion == major &&
- windows_version_info.dwMinorVersion >= minor);
-}
-
struct dll_sym {
void **func_ptr;
const char *name;
struct dll_spec ntdll_spec = {
.name = L"ntdll.dll",
.syms = {
+ DLL_SYM(NtCreateFile, true),
DLL_SYM(NtOpenFile, true),
DLL_SYM(NtReadFile, true),
+ DLL_SYM(NtWriteFile, true),
DLL_SYM(NtQueryInformationFile, true),
DLL_SYM(NtQuerySecurityObject, true),
DLL_SYM(NtQueryDirectoryFile, true),
DLL_SYM(NtQueryVolumeInformationFile, true),
+ DLL_SYM(NtSetInformationFile, true),
DLL_SYM(NtSetSecurityObject, true),
+ DLL_SYM(NtFsControlFile, true),
DLL_SYM(NtClose, true),
DLL_SYM(RtlNtStatusToDosError, true),
DLL_SYM(RtlCreateSystemVolumeInformationFolder, false),
- {NULL, NULL},
- },
-};
-
-struct dll_spec kernel32_spec = {
- .name = L"kernel32.dll",
- .syms = {
- DLL_SYM(CreateSymbolicLinkW, false),
+ DLL_SYM(RtlDosPathNameToNtPathName_U, true),
+ DLL_SYM(RtlDosPathNameToNtPathName_U_WithStatus, false), /* Not present on XP */
{NULL, NULL},
},
};
acquired_privileges = true;
}
- /* Get Windows version information. */
- GetVersionEx(&windows_version_info);
-
- /* Try to dynamically load some functions. */
- ret = init_dll(&kernel32_spec);
- if (ret)
- goto out_drop_privs;
-
ret = init_dll(&ntdll_spec);
if (ret)
- goto out_cleanup_kernel32;
+ goto out_drop_privs;
return 0;
-out_cleanup_kernel32:
- cleanup_dll(&kernel32_spec);
out_drop_privs:
win32_release_capture_and_apply_privileges();
return ret;
if (acquired_privileges)
win32_release_capture_and_apply_privileges();
- cleanup_dll(&kernel32_spec);
cleanup_dll(&ntdll_spec);
}
+/*
+ * Translates a Win32-namespace path into an NT-namespace path.
+ *
+ * On success, returns 0. The NT-namespace path will be stored in the
+ * UNICODE_STRING structure pointed to by nt_path. nt_path->Buffer will be set
+ * to a new buffer that must later be freed with HeapFree(). (Really
+ * RtlHeapFree(), but HeapFree() seems to be the same thing.)
+ *
+ * On failure, returns WIMLIB_ERR_NOMEM or WIMLIB_ERR_INVALID_PARAM.
+ */
+int
+win32_path_to_nt_path(const wchar_t *win32_path, UNICODE_STRING *nt_path)
+{
+ NTSTATUS status;
+
+ if (func_RtlDosPathNameToNtPathName_U_WithStatus) {
+ status = (*func_RtlDosPathNameToNtPathName_U_WithStatus)(win32_path,
+ nt_path,
+ NULL, NULL);
+ } else {
+ if ((*func_RtlDosPathNameToNtPathName_U)(win32_path, nt_path,
+ NULL, NULL))
+ status = STATUS_SUCCESS;
+ else
+ status = STATUS_NO_MEMORY;
+ }
+
+ if (likely(NT_SUCCESS(status)))
+ return 0;
+
+ if (status == STATUS_NO_MEMORY)
+ return WIMLIB_ERR_NOMEM;
+
+ ERROR("\"%ls\": invalid path name (status=0x%08"PRIx32")",
+ win32_path, (u32)status);
+ return WIMLIB_ERR_INVALID_PARAM;
+}
+
+int
+win32_get_drive_path(const wchar_t *file_path, wchar_t drive_path[7])
+{
+ tchar *file_abspath;
+
+ file_abspath = realpath(file_path, NULL);
+ if (!file_abspath)
+ return WIMLIB_ERR_NOMEM;
+
+ if (file_abspath[0] == L'\0' || file_abspath[1] != L':') {
+ ERROR("\"%ls\": Path format not recognized", file_abspath);
+ FREE(file_abspath);
+ return WIMLIB_ERR_UNSUPPORTED;
+ }
+
+ wsprintf(drive_path, L"\\\\.\\%lc:", file_abspath[0]);
+ FREE(file_abspath);
+ return 0;
+}
+
+static void
+windows_msg(u32 code, const wchar_t *format, va_list va,
+ bool is_ntstatus, bool is_error)
+{
+ wchar_t _buf[STACK_MAX / 8];
+ wchar_t *buf = _buf;
+ size_t buflen = ARRAY_LEN(_buf);
+ size_t ret;
+ size_t n;
+
+retry:
+ n = vsnwprintf(buf, buflen, format, va);
+
+ if (n >= buflen)
+ goto realloc;
+
+ n += snwprintf(&buf[n], buflen - n,
+ (is_ntstatus ?
+ L" (status=%08"PRIx32"): " :
+ L" (err=%"PRIu32"): "),
+ code);
+
+ if (n >= buflen)
+ goto realloc;
+
+ ret = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+ NULL,
+ is_ntstatus ? (*func_RtlNtStatusToDosError)(code) : code,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ &buf[n],
+ buflen - n,
+ NULL);
+ n += ret;
+
+ if (n >= buflen || (ret == 0 && GetLastError() == ERROR_INSUFFICIENT_BUFFER))
+ goto realloc;
+
+ if (buf[n - 1] == L'\n')
+ buf[--n] = L'\0';
+ if (buf[n - 1] == L'\r')
+ buf[--n] = L'\0';
+ if (buf[n - 1] == L'.')
+ buf[--n] = L'\0';
+
+ if (is_error)
+ ERROR("%ls", buf);
+ else
+ WARNING("%ls", buf);
+ if (buf != _buf)
+ FREE(buf);
+ return;
+
+realloc:
+ if (buf != _buf)
+ FREE(buf);
+ buflen *= 2;
+ buf = MALLOC(buflen * sizeof(buf[0]));
+ if (buf)
+ goto retry;
+ ERROR("Ran out of memory while building error message!!!");
+}
+
+void
+win32_warning(DWORD err, const wchar_t *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ windows_msg(err, format, va, false, false);
+ va_end(va);
+}
+
+void
+win32_error(DWORD err, const wchar_t *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ windows_msg(err, format, va, false, true);
+ va_end(va);
+}
+
+void
+winnt_warning(NTSTATUS status, const wchar_t *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ windows_msg(status, format, va, true, false);
+ va_end(va);
+}
+
+void
+winnt_error(NTSTATUS status, const wchar_t *format, ...)
+{
+ va_list va;
+
+ va_start(va, format);
+ windows_msg(status, format, va, true, true);
+ va_end(va);
+}
+
#endif /* __WIN32__ */