dbus-sysdeps-wince-glue.c
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* dbus-sysdeps-wince-glue.c Wrappers for Windows CE around system/libc features (internal to D-BUS implementation)
*
* Copyright (C) 2002, 2003 Red Hat, Inc.
* Copyright (C) 2003 CodeFactory AB
* Copyright (C) 2005 Novell, Inc.
* Copyright (C) 2006 Ralf Habacker <ralf.habacker@freenet.de>
* Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
* Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
*
* SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
*
* Licensed under the Academic Free License version 2.1
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <config.h>
#include "dbus-internals.h"
#include "dbus-sysdeps.h"
#include "dbus-sysdeps-win.h"
#include <windows.h>
/* Including shlobj.h creates trouble on some compilers. Just chicken
out here by defining just what we need. */
#ifndef CSIDL_PERSONAL
#define CSIDL_PERSONAL 5
#endif
/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
static char *
stpcpy (char *dest, const char *src)
{
char *d = dest;
const char *s = src;
do
*d++ = *s;
while (*s++ != '\0');
return d - 1;
}
/* This is special cased, because we must avoid using many dbus
functions (such as memory allocations): Those functions may in turn
cause verbose output and check the flag! */
static char *
get_verbose_setting()
{
const wchar_t dir[] = L"Software\\freedesktop\\DBus";
const wchar_t name[] = L"Verbose";
HKEY root_key;
HKEY key_handle;
DWORD nbytes;
DWORD n1;
DWORD type;
wchar_t *result_w = NULL;
char *result;
int len;
root_key = HKEY_LOCAL_MACHINE;
if (RegOpenKeyExW (root_key, dir, 0, KEY_READ, &key_handle))
return NULL;
nbytes = 1;
if (RegQueryValueExW (key_handle, name, 0, NULL, NULL, &nbytes))
{
RegCloseKey (key_handle);
return NULL;
}
/* Round up to multiple of wchar_t, convert to number of wchar_t's, and add 1. */
n1 = ((nbytes + sizeof(wchar_t) - 1) / sizeof (wchar_t)) + 1;
result_w = malloc (n1 * sizeof (wchar_t));
if (!result_w)
{
RegCloseKey (key_handle);
return NULL;
}
if (RegQueryValueExW (key_handle, name, 0, &type, (LPBYTE) result_w, &nbytes))
{
RegCloseKey (key_handle);
free (result_w);
return NULL;
}
RegCloseKey (key_handle);
result_w[n1 - 1] = 0; /* Make sure it is really a string. */
/* NOTE: REG_MULTI_SZ and REG_EXPAND_SZ not supported, because they
are not needed in this module. */
if (type != REG_SZ)
{
free (result_w);
return NULL;
}
len = WideCharToMultiByte (CP_UTF8, 0, result_w, -1, NULL, 0, NULL, NULL);
if (len < 0)
{
free (result_w);
return NULL;
}
result = malloc (len + 1);
if (!result)
{
free (result_w);
return NULL;
}
len = WideCharToMultiByte (CP_UTF8, 0, result_w, -1, result, len, NULL, NULL);
free (result_w);
if (len < 0)
{
free (result);
return NULL;
}
return result;
}
/* Return a string from the W32 Registry or NULL in case of error.
Caller must release the return value. A NULL for root is an alias
for HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE in turn. */
static char *
read_w32_registry_string (const char *root, const char *dir, const char *name)
{
HKEY root_key, key_handle;
DWORD n1, nbytes, type;
char *result = NULL;
if ( !root )
root_key = HKEY_CURRENT_USER;
else if ( !strcmp( root, "HKEY_CLASSES_ROOT" ) )
root_key = HKEY_CLASSES_ROOT;
else if ( !strcmp( root, "HKEY_CURRENT_USER" ) )
root_key = HKEY_CURRENT_USER;
else if ( !strcmp( root, "HKEY_LOCAL_MACHINE" ) )
root_key = HKEY_LOCAL_MACHINE;
else if ( !strcmp( root, "HKEY_USERS" ) )
root_key = HKEY_USERS;
else
return NULL;
if (RegOpenKeyExA (root_key, dir, 0, KEY_READ, &key_handle))
{
if (root)
return NULL; /* no need for a RegClose, so return direct */
/* It seems to be common practise to fall back to HKLM. */
if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, dir, 0, KEY_READ, &key_handle))
return NULL; /* still no need for a RegClose, so return direct */
}
nbytes = 1;
if (RegQueryValueExA (key_handle, name, 0, NULL, NULL, &nbytes))
{
if (root)
goto out;
/* Try to fallback to HKLM also for a missing value. */
RegCloseKey (key_handle);
if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, dir, 0, KEY_READ, &key_handle))
return NULL; /* Nope. */
if (RegQueryValueExA (key_handle, name, 0, NULL, NULL, &nbytes))
goto out;
}
n1 = nbytes + 1;
result = malloc (n1);
if (!result)
goto out;
if (RegQueryValueExA (key_handle, name, 0, &type, result, &n1))
{
free(result);
result = NULL;
goto out;
}
result[nbytes] = 0; /* Make sure it is really a string. */
out:
RegCloseKey (key_handle);
return result;
}
static char *
find_inst_dir ()
{
return read_w32_registry_string ("HKEY_LOCAL_MACHINE",
"Software\\freedesktop\\DBus",
"Install Directory");
}
static char *
find_env_in_registry (const char *name)
{
return read_w32_registry_string ("HKEY_LOCAL_MACHINE",
"Software\\freedesktop\\DBus",
name);
}
static char *
find_program_in_inst_dir (const char *name)
{
char *result = NULL;
char *tmp;
tmp = find_inst_dir ();
if (!tmp)
return NULL;
result = malloc (strlen (tmp) + 5 + strlen (name) + 1);
if (!result)
{
free (tmp);
return NULL;
}
strcpy (stpcpy (stpcpy (result, tmp), "\\bin\\"), name);
free (tmp);
return result;
}
static char *
find_inst_subdir (const char *name)
{
char *result = NULL;
char *tmp;
tmp = find_inst_dir ();
if (!tmp)
return NULL;
result = malloc (strlen (tmp) + 1 + strlen (name) + 1);
if (!result)
{
free (tmp);
return NULL;
}
strcpy (stpcpy (stpcpy (result, tmp), "\\"), name);
free (tmp);
return result;
}
static char *
find_my_documents_folder ()
{
/* One for safety, just in case. */
char dir[MAX_PATH + 1];
char *result;
dir[0] = '\0';
/* May return false even if successful. */
SHGetSpecialFolderPathA (0, dir, CSIDL_PERSONAL, 0);
if (dir[0] == '\0')
return NULL;
result = malloc (strlen (dir) + 1);
if (!result)
return NULL;
strcpy (result, dir);
return result;
}
#define MAX_ENV 30
char *environ[MAX_ENV + 1];
char *
getenv (const char *name)
{
static char *past_result;
char **envp;
int idx;
if (past_result)
{
free (past_result);
past_result = NULL;
}
if (! strcmp (name, "DBUS_VERBOSE"))
return past_result = get_verbose_setting ();
else if (! strcmp (name, "HOMEPATH"))
return past_result = find_my_documents_folder ();
else if (! strcmp (name, "DBUS_DATADIR"))
return past_result = find_inst_subdir ("share");
for (envp = environ; *envp != 0; envp++)
{
const char *varp = name;
char *ep = *envp;
int same_name = 0;
while (*varp == *ep && *varp != '\0')
{
++ep;
++varp;
};
if (*varp == '\0' && *ep == '=')
return ep + 1;
}
return NULL;
}
int
putenv (char *str)
{
char **envp;
int idx;
for (envp = environ; *envp != 0; envp++)
{
char *varp = str;
char *ep = *envp;
int same_name = 0;
while (*varp == *ep && *varp != '\0')
{
if (*varp == '=')
same_name = 1;
++ep;
++varp;
};
if (*varp == *ep && *varp == '\0')
return 0;
if (same_name)
{
*envp = str;
return 0;
}
}
idx = envp - environ;
if (idx > MAX_ENV)
{
_dbus_win_set_errno (ENOMEM);
return -1;
}
environ[idx] = str;
return 0;
}
clock_t
clock (void)
{
return GetTickCount ();
}
void
abort (void)
{
/* This is what windows does. */
exit (3);
}
void
GetSystemTimeAsFileTime (LPFILETIME ftp)
{
SYSTEMTIME st;
GetSystemTime (&st);
SystemTimeToFileTime (&st, ftp);
}
unsigned char*
_mbsrchr (const unsigned char* str, unsigned int ch)
{
/* FIXME. This is not multi-byte safe. */
return strrchr (str, ch);
}
HANDLE OpenFileMappingA(DWORD dwDesiredAccess,
BOOL bInheritHandle,
LPCSTR lpName)
{
DWORD flProtect = 0;
HANDLE hMapping;
if (dwDesiredAccess & FILE_MAP_READ)
flProtect |= PAGE_READONLY;
if (dwDesiredAccess & FILE_MAP_WRITE)
flProtect |= PAGE_READWRITE;
SetLastError (0);
hMapping = CreateFileMappingA(INVALID_HANDLE_VALUE,
NULL, flProtect, 0, 0, lpName);
if (hMapping != INVALID_HANDLE_VALUE)
{
/* Just in case Windows CE changes its behaviour, we check for
the right error value here. */
if (GetLastError () != ERROR_ALREADY_EXISTS)
{
CloseHandle(hMapping);
hMapping = INVALID_HANDLE_VALUE;
}
}
return hMapping;
}
BOOL
MoveFileExA (LPCSTR lpExistingFileName, LPCSTR lpNewFileName, DWORD dwFlags)
{
_dbus_assert (dwFlags == MOVEFILE_REPLACE_EXISTING);
if (_dbus_file_exists (lpNewFileName))
{
BOOL result = DeleteFileA (lpNewFileName);
if (result == 0)
return FALSE;
}
return MoveFileA (lpExistingFileName, lpNewFileName);
}
BOOL
SetHandleInformation (HANDLE hObject, DWORD dwMask, DWORD dwFlags)
{
_dbus_assert (dwMask == (HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE));
_dbus_assert (dwFlags == 0);
/* Not supported on Windows CE, and actually the default. So just
return overwhelming success. */
return 1;
}
DWORD
SearchPathA (LPCSTR lpPath, LPCSTR lpFileName, LPCSTR lpExtension,
DWORD nBufferLength, LPSTR lpBuffer, LPSTR* lpFilePart)
{
char *filename;
char *filepart;
int filename_len;
_dbus_assert (lpPath == NULL);
_dbus_assert (lpExtension == NULL);
filename = find_program_in_inst_dir (lpFileName);
if (!filename)
{
SetLastError (ERROR_FILE_NOT_FOUND);
return 0;
}
filename_len = strlen (filename) + 1;
if (filename_len > nBufferLength)
{
free (filename);
return filename_len;
}
strcpy (lpBuffer, filename);
free (filename);
filepart = _mbsrchr (lpBuffer, '\\');
if (!filepart)
filepart = lpBuffer;
*lpFilePart = filepart;
return filename_len - 1;
}
dbus_bool_t
_dbus_getsid(char **sid)
{
/* There is nothing like this on Windows CE, so we fake it. */
static const char asid[] = "S-1-5-21-515967899-920026266-1708537768-1000";
char *buf = LocalAlloc (LMEM_FIXED, sizeof (asid));
if (!buf)
{
_dbus_win_warn_win_error ("LocalAlloc failed", GetLastError ());
return FALSE;
}
memcpy (buf, asid, sizeof (asid));
*sid = buf;
return TRUE;
}
BOOL
LookupAccountNameW (LPCWSTR lpSystemName, LPCWSTR lpAccountName, PSID Sid, PDWORD cbSid,
LPWSTR ReferencedDomainName, PDWORD cchReferencedDomainName, PSID_NAME_USE peUse)
{
/* Currently not needed. */
return FALSE;
}
BOOL
IsValidSid (PSID psid)
{
/* Currently not needed. */
return FALSE;
}
HANDLE
CreateFileA (LPCSTR lpFileName, DWORD dwDesiredAccess, DWORD dwSharedMode,
LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
HANDLE hTemplateFile)
{
wchar_t *filename;
HANDLE result;
int err;
filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
if (!filename)
return INVALID_HANDLE_VALUE;
result = CreateFileW (filename, dwDesiredAccess, dwSharedMode,
lpSecurityAttributes, dwCreationDisposition,
dwFlagsAndAttributes, hTemplateFile);
err = GetLastError ();
dbus_free (filename);
SetLastError (err);
return result;
}
BOOL
DeleteFileA (LPCSTR lpFileName)
{
wchar_t *filename;
BOOL result;
int err;
filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
if (!filename)
return FALSE;
result = DeleteFileW (filename);
err = GetLastError ();
dbus_free (filename);
SetLastError (err);
return result;
}
BOOL
MoveFileA (LPCSTR lpExistingFileName, LPCSTR lpNewFileName)
{
wchar_t *existing_filename;
wchar_t *new_filename;
BOOL result;
int err;
existing_filename = _dbus_win_utf8_to_utf16 (lpExistingFileName, NULL);
if (! existing_filename)
return FALSE;
new_filename = _dbus_win_utf8_to_utf16 (lpNewFileName, NULL);
if (! new_filename)
{
dbus_free (existing_filename);
return FALSE;
}
result = MoveFileW (existing_filename, new_filename);
err = GetLastError ();
dbus_free (existing_filename);
dbus_free (new_filename);
SetLastError (err);
return result;
}
DWORD
GetFileAttributesA(LPCSTR lpFileName)
{
wchar_t *filename;
DWORD result;
int err;
filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
if (!filename)
return INVALID_FILE_ATTRIBUTES;
result = GetFileAttributesW (filename);
err = GetLastError ();
dbus_free (filename);
SetLastError (err);
return result;
}
BOOL
GetFileAttributesExA (LPCSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
PVOID lpFileInformation)
{
wchar_t *filename;
DWORD result;
int err;
filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
if (!filename)
return INVALID_FILE_ATTRIBUTES;
result = GetFileAttributesExW (filename, fInfoLevelId, lpFileInformation);
err = GetLastError ();
dbus_free (filename);
SetLastError (err);
return result;
}
HANDLE
CreateFileMappingA (HANDLE hFile, LPSECURITY_ATTRIBUTES lpAttributes,
DWORD flProtect, DWORD dwMaximumSizeHigh,
DWORD dwMaximumSizeLow, LPCSTR lpName)
{
wchar_t *name;
HANDLE result;
int err;
if (lpName)
{
name = _dbus_win_utf8_to_utf16 (lpName, NULL);
if (!name)
return INVALID_HANDLE_VALUE;
}
else
name = NULL;
result = CreateFileMappingW (hFile, lpAttributes, flProtect,
dwMaximumSizeHigh, dwMaximumSizeLow,
name);
err = GetLastError ();
dbus_free (name);
SetLastError (err);
return result;
}
BOOL
CreateDirectoryA (LPCSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
{
wchar_t *pathname;
BOOL result;
int err;
pathname = _dbus_win_utf8_to_utf16 (lpPathName, NULL);
if (!pathname)
return FALSE;
result = CreateDirectoryW (pathname, lpSecurityAttributes);
err = GetLastError ();
dbus_free (pathname);
SetLastError (err);
return result;
}
BOOL
RemoveDirectoryA (LPCSTR lpPathName)
{
wchar_t *pathname;
BOOL result;
int err;
pathname = _dbus_win_utf8_to_utf16 (lpPathName, NULL);
if (!pathname)
return FALSE;
result = RemoveDirectoryW (pathname);
err = GetLastError ();
dbus_free (pathname);
SetLastError (err);
return result;
}
static BOOL
convert_find_data (LPWIN32_FIND_DATAW fdw, LPWIN32_FIND_DATAA fda)
{
char *filename;
int len;
fda->dwFileAttributes = fdw->dwFileAttributes;
fda->ftCreationTime = fdw->ftCreationTime;
fda->ftLastAccessTime = fdw->ftLastAccessTime;
fda->ftLastWriteTime = fdw->ftLastWriteTime;
fda->nFileSizeHigh = fdw->nFileSizeHigh;
fda->nFileSizeLow = fdw->nFileSizeLow;
filename = _dbus_win_utf16_to_utf8 (fdw->cFileName, NULL);
if (!filename)
return FALSE;
len = sizeof (fda->cFileName);
strncpy (fda->cFileName, filename, len);
fda->cFileName[len - 1] = '\0';
return TRUE;
}
HANDLE
FindFirstFileA (LPCSTR lpFileName, LPWIN32_FIND_DATAA lpFindFileData)
{
wchar_t *pathname;
WIN32_FIND_DATAW find_file_data;
HANDLE result;
int err;
pathname = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
if (!pathname)
return INVALID_HANDLE_VALUE;
result = FindFirstFileW (pathname, &find_file_data);
if (result != INVALID_HANDLE_VALUE)
{
BOOL res = convert_find_data (&find_file_data, lpFindFileData);
if (! res)
{
err = GetLastError ();
FindClose (result);
SetLastError (err);
result = INVALID_HANDLE_VALUE;
}
}
err = GetLastError ();
dbus_free (pathname);
SetLastError (err);
return result;
}
BOOL
FindNextFileA (HANDLE hFindFile, LPWIN32_FIND_DATAA lpFindFileData)
{
WIN32_FIND_DATAW find_file_data;
BOOL result;
int err;
result = FindNextFileW (hFindFile, &find_file_data);
if (result)
result = convert_find_data (&find_file_data, lpFindFileData);
return result;
}
HANDLE
CreateMutexA (LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner,
LPCSTR lpName)
{
wchar_t *name;
HANDLE result;
int err;
if (lpName)
{
name = _dbus_win_utf8_to_utf16 (lpName, NULL);
if (!name)
return INVALID_HANDLE_VALUE;
}
else
name = NULL;
result = CreateMutexW (lpMutexAttributes, bInitialOwner, name);
err = GetLastError ();
dbus_free (name);
SetLastError (err);
return result;
}
BOOL
CreateProcessA (LPCSTR pszImageName, LPSTR pszCmdLine,
LPSECURITY_ATTRIBUTES psaProcess,
LPSECURITY_ATTRIBUTES psaThread, BOOL fInheritHandles,
DWORD fdwCreate, PVOID pvEnvironment, LPCSTR pszCurDir,
LPSTARTUPINFOA psiStartInfo,
LPPROCESS_INFORMATION pProcInfo)
{
wchar_t *image_name = NULL;
wchar_t *cmd_line = NULL;
BOOL result;
int err;
_dbus_assert (psaProcess == NULL);
_dbus_assert (psaThread == NULL);
_dbus_assert (fInheritHandles == FALSE);
_dbus_assert (pvEnvironment == NULL);
_dbus_assert (pszCurDir == NULL);
/* psiStartInfo is generally not NULL. */
if (pszImageName)
{
image_name = _dbus_win_utf8_to_utf16 (pszImageName, NULL);
if (!image_name)
return 0;
}
if (pszCmdLine)
{
cmd_line = _dbus_win_utf8_to_utf16 (pszCmdLine, NULL);
if (!cmd_line)
{
if (image_name)
dbus_free (image_name);
return 0;
}
}
result = CreateProcessW (image_name, cmd_line, NULL, NULL, FALSE,
fdwCreate, NULL, NULL, NULL, pProcInfo);
err = GetLastError ();
dbus_free (image_name);
dbus_free (cmd_line);
SetLastError (err);
return result;
}
LONG
RegOpenKeyExA (HKEY hKey, LPCSTR lpSubKey, DWORD ulOptions,
REGSAM samDesired, PHKEY phkResult)
{
wchar_t *subkey;
LONG result;
int err;
if (lpSubKey)
{
subkey = _dbus_win_utf8_to_utf16 (lpSubKey, NULL);
if (!subkey)
return 0;
}
else
subkey = NULL;
result = RegOpenKeyEx (hKey, subkey, ulOptions, samDesired, phkResult);
err = GetLastError ();
dbus_free (subkey);
SetLastError (err);
return result;
}
LONG
RegQueryValueExA (HKEY hKey, LPCSTR lpValueName, LPDWORD lpReserved,
LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)
{
wchar_t *name;
LONG err;
BYTE *data;
DWORD data_len;
DWORD type;
if (lpValueName)
{
name = _dbus_win_utf8_to_utf16 (lpValueName, NULL);
if (!name)
return GetLastError ();
}
else
name = NULL;
data_len = 0;
err = RegQueryValueExW (hKey, name, lpReserved, lpType, NULL, &data_len);
if (err || !lpcbData)
{
dbus_free (name);
return err;
}
data = malloc (data_len + sizeof (wchar_t));
if (!data)
{
dbus_free (name);
return ERROR_NOT_ENOUGH_MEMORY;
}
err = RegQueryValueExW (hKey, name, lpReserved, &type, data, &data_len);
if (lpType)
*lpType = type;
dbus_free (name);
/* If err is ERROR_MORE_DATA, there probably was a race condition.
We can punt this to the caller just as well. */
if (err)
{
free (data);
return err;
}
/* NOTE: REG_MULTI_SZ and REG_EXPAND_SZ not supported, because they
are not needed in this module. */
if (type == REG_SZ)
{
char *data_c;
int data_c_len;
/* This is valid since we allocated one more above. */
data[data_len] = '\0';
data[data_len + 1] = '\0';
/* The cast is valid because malloc guarantees alignment of
basic types. */
data_c = _dbus_win_utf16_to_utf8 ((wchar_t*) data, NULL);
if (!data_c)
{
free (data);
return GetLastError();
}
data_c_len = strlen (data_c) + 1;
_dbus_assert (data_c_len <= data_len + sizeof (wchar_t));
memcpy (data, data_c, data_c_len);
data_len = data_c_len;
dbus_free (data_c);
}
/* DATA and DATA_LEN now contain the result. */
if (lpData)
{
if (data_len > *lpcbData)
err = ERROR_MORE_DATA;
else
memcpy (lpData, data, data_len);
}
free (data);
*lpcbData = data_len;
return err;
}
DWORD
FormatMessageA (DWORD dwFlags, PCVOID lpSource, DWORD dwMessageId,
DWORD dwLanguageId, LPSTR lpBuffer, DWORD nSize,
va_list* Arguments)
{
LPWSTR buffer_w = NULL;
LPSTR buffer_c;
DWORD len;
char *buffer_new;
DWORD buffer_new_len;
BOOL buffer_w_free;
len = FormatMessageW (dwFlags | FORMAT_MESSAGE_ALLOCATE_BUFFER,
lpSource, dwMessageId, dwLanguageId,
(LPWSTR) &buffer_w, 0, Arguments);
if (len == 0)
return 0;
buffer_c = _dbus_win_utf16_to_utf8 (buffer_w, NULL);
if (! buffer_c)
{
LocalFree (buffer_w);
return 0;
}
if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER)
{
/* We need to return a buffer that's freeable with LocalFree. */
buffer_new = (char *) buffer_w;
buffer_new_len = sizeof (wchar_t) * (len + 1);
buffer_w_free = FALSE;
/* Avoid alignment issue by using memcpy. */
memcpy (lpBuffer, &buffer_new, sizeof (buffer_new));
}
else
{
buffer_new = lpBuffer;
buffer_new_len = nSize;
buffer_w_free = TRUE;
}
strncpy (buffer_new, buffer_c, buffer_new_len);
dbus_free (buffer_c);
buffer_new[buffer_new_len - 1] = '\0';
if (buffer_w_free)
LocalFree (buffer_w);
/* strlen is correct (not _mbstrlen), because we want storage and
not string length. */
return strlen (buffer_new);
}
DWORD
GetModuleFileNameA (HINSTANCE hModule, LPSTR lpFilename, DWORD nSize)
{
wchar_t *filename_w;
char *filename_c;
DWORD len;
if (nSize == 0)
{
/* Windows XP/2000. */
SetLastError (0);
return 0;
}
filename_w = malloc (sizeof (wchar_t) * nSize);
if (! filename_w)
return 0;
len = GetModuleFileNameW (hModule, filename_w, nSize);
if (len == 0)
{
/* Note: If we fail with ERROR_INSUFFICIENT_BUFFER, this is still
(approximately) correct. */
free (filename_w);
return 0;
}
filename_w[nSize - 1] = '\0';
filename_c = _dbus_win_utf16_to_utf8 (filename_w, NULL);
free (filename_w);
if (! filename_c)
return 0;
strncpy (lpFilename, filename_c, nSize);
dbus_free (filename_c);
lpFilename[nSize - 1] = '\0';
/* strlen is correct (not _mbstrlen), because we want storage and
not string length. */
return strlen (lpFilename);
}
DWORD
GetTempPathA (DWORD nBufferLength, LPSTR lpBuffer)
{
wchar_t dummy[1];
DWORD len;
len = GetTempPathW (0, dummy);
if (len == 0)
return 0;
_dbus_assert (len <= MAX_PATH);
/* Better be safe than sorry. MSDN doesn't say if len is with or
without terminating 0. */
len++;
{
wchar_t *buffer_w;
DWORD len_w;
char *buffer_c;
DWORD len_c;
buffer_w = malloc (sizeof (wchar_t) * len);
if (! buffer_w)
return 0;
len_w = GetTempPathW (len, buffer_w);
/* Give up if we still can't get at it. */
if (len_w == 0 || len_w >= len)
{
free (buffer_w);
return 0;
}
/* Better be really safe. */
buffer_w[len_w] = '\0';
buffer_c = _dbus_win_utf16_to_utf8 (buffer_w, NULL);
free (buffer_w);
if (! buffer_c)
return 0;
/* strlen is correct (not _mbstrlen), because we want storage and
not string length. */
len_c = strlen (buffer_c) + 1;
if (len_c > nBufferLength)
return len_c;
strcpy (lpBuffer, buffer_c);
dbus_free (buffer_c);
return len_c - 1;
}
}
BOOL
SHGetSpecialFolderPathA (HWND hwndOwner, LPSTR lpszPath, int nFolder,
BOOL fCreate)
{
wchar_t path[MAX_PATH];
char *path_c;
BOOL result;
path[0] = (wchar_t) 0;
result = SHGetSpecialFolderPathW (hwndOwner, path, nFolder, fCreate);
/* Note: May return false even if succeeds. */
path[MAX_PATH - 1] = (wchar_t) 0;
path_c = _dbus_win_utf16_to_utf8 (path, NULL);
if (! path_c)
return 0;
strncpy (lpszPath, path_c, MAX_PATH);
dbus_free (path_c);
lpszPath[MAX_PATH - 1] = '\0';
return result;
}
void
OutputDebugStringA (LPCSTR lpOutputString)
{
wchar_t *str;
HANDLE result;
int err;
str = _dbus_win_utf8_to_utf16 (lpOutputString, NULL);
if (!str)
return;
OutputDebugStringW (str);
err = GetLastError ();
dbus_free (str);
SetLastError (err);
}
_dbus_file_exists
dbus_bool_t _dbus_file_exists(const char *file)
File interface.
Definition dbus-sysdeps-util-unix.c:564
_dbus_assert
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
Definition dbus-internals.h:153
NULL
#define NULL
A null pointer, defined appropriately for C or C++.
Definition dbus-macros.h:51
TRUE
#define TRUE
Expands to "1".
Definition dbus-macros.h:41
FALSE
#define FALSE
Expands to "0".
Definition dbus-macros.h:44
dbus_free
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
Definition dbus-memory.c:710
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition dbus-types.h:37