D-Bus: dbus-sysdeps-wince-glue.c Source File

D-Bus 1.16.2

dbus-sysdeps-wince-glue.c
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-sysdeps-wince-glue.c Wrappers for Windows CE around system/libc features (internal to D-BUS implementation)
3 *
4 * Copyright (C) 2002, 2003 Red Hat, Inc.
5 * Copyright (C) 2003 CodeFactory AB
6 * Copyright (C) 2005 Novell, Inc.
7 * Copyright (C) 2006 Ralf Habacker <ralf.habacker@freenet.de>
8 * Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
9 * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
10 *
11 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
12 *
13 * Licensed under the Academic Free License version 2.1
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 *
29 */
30
31#include <config.h>
32#include "dbus-internals.h"
33#include "dbus-sysdeps.h"
34#include "dbus-sysdeps-win.h"
35
36#include <windows.h>
37/* Including shlobj.h creates trouble on some compilers. Just chicken
38 out here by defining just what we need. */
39#ifndef CSIDL_PERSONAL
40#define CSIDL_PERSONAL 5
41#endif
42
43
44/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
45static char *
46stpcpy (char *dest, const char *src)
47{
48 char *d = dest;
49 const char *s = src;
50
51 do
52 *d++ = *s;
53 while (*s++ != '\0');
54
55 return d - 1;
56}
57
58
59/* This is special cased, because we must avoid using many dbus
60 functions (such as memory allocations): Those functions may in turn
61 cause verbose output and check the flag! */
62static char *
63get_verbose_setting()
64{
65 const wchar_t dir[] = L"Software\\freedesktop\\DBus";
66 const wchar_t name[] = L"Verbose";
67 HKEY root_key;
68 HKEY key_handle;
69 DWORD nbytes;
70 DWORD n1;
71 DWORD type;
72 wchar_t *result_w = NULL;
73 char *result;
74 int len;
75
76 root_key = HKEY_LOCAL_MACHINE;
77 if (RegOpenKeyExW (root_key, dir, 0, KEY_READ, &key_handle))
78 return NULL;
79
80 nbytes = 1;
81 if (RegQueryValueExW (key_handle, name, 0, NULL, NULL, &nbytes))
82 {
83 RegCloseKey (key_handle);
84 return NULL;
85 }
86 /* Round up to multiple of wchar_t, convert to number of wchar_t's, and add 1. */
87 n1 = ((nbytes + sizeof(wchar_t) - 1) / sizeof (wchar_t)) + 1;
88 result_w = malloc (n1 * sizeof (wchar_t));
89 if (!result_w)
90 {
91 RegCloseKey (key_handle);
92 return NULL;
93 }
94 if (RegQueryValueExW (key_handle, name, 0, &type, (LPBYTE) result_w, &nbytes))
95 {
96 RegCloseKey (key_handle);
97 free (result_w);
98 return NULL;
99 }
100 RegCloseKey (key_handle);
101 result_w[n1 - 1] = 0; /* Make sure it is really a string. */
102
103 /* NOTE: REG_MULTI_SZ and REG_EXPAND_SZ not supported, because they
104 are not needed in this module. */
105 if (type != REG_SZ)
106 {
107 free (result_w);
108 return NULL;
109 }
110
111 len = WideCharToMultiByte (CP_UTF8, 0, result_w, -1, NULL, 0, NULL, NULL);
112 if (len < 0)
113 {
114 free (result_w);
115 return NULL;
116 }
117
118 result = malloc (len + 1);
119 if (!result)
120 {
121 free (result_w);
122 return NULL;
123 }
124
125 len = WideCharToMultiByte (CP_UTF8, 0, result_w, -1, result, len, NULL, NULL);
126 free (result_w);
127 if (len < 0)
128 {
129 free (result);
130 return NULL;
131 }
132 return result;
133}
134
135
136/* Return a string from the W32 Registry or NULL in case of error.
137 Caller must release the return value. A NULL for root is an alias
138 for HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE in turn. */
139static char *
140read_w32_registry_string (const char *root, const char *dir, const char *name)
141{
142 HKEY root_key, key_handle;
143 DWORD n1, nbytes, type;
144 char *result = NULL;
145
146 if ( !root )
147 root_key = HKEY_CURRENT_USER;
148 else if ( !strcmp( root, "HKEY_CLASSES_ROOT" ) )
149 root_key = HKEY_CLASSES_ROOT;
150 else if ( !strcmp( root, "HKEY_CURRENT_USER" ) )
151 root_key = HKEY_CURRENT_USER;
152 else if ( !strcmp( root, "HKEY_LOCAL_MACHINE" ) )
153 root_key = HKEY_LOCAL_MACHINE;
154 else if ( !strcmp( root, "HKEY_USERS" ) )
155 root_key = HKEY_USERS;
156 else
157 return NULL;
158
159 if (RegOpenKeyExA (root_key, dir, 0, KEY_READ, &key_handle))
160 {
161 if (root)
162 return NULL; /* no need for a RegClose, so return direct */
163 /* It seems to be common practise to fall back to HKLM. */
164 if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, dir, 0, KEY_READ, &key_handle))
165 return NULL; /* still no need for a RegClose, so return direct */
166 }
167
168 nbytes = 1;
169 if (RegQueryValueExA (key_handle, name, 0, NULL, NULL, &nbytes))
170 {
171 if (root)
172 goto out;
173 /* Try to fallback to HKLM also for a missing value. */
174 RegCloseKey (key_handle);
175 if (RegOpenKeyExA (HKEY_LOCAL_MACHINE, dir, 0, KEY_READ, &key_handle))
176 return NULL; /* Nope. */
177 if (RegQueryValueExA (key_handle, name, 0, NULL, NULL, &nbytes))
178 goto out;
179 }
180 n1 = nbytes + 1;
181 result = malloc (n1);
182 if (!result)
183 goto out;
184 if (RegQueryValueExA (key_handle, name, 0, &type, result, &n1))
185 {
186 free(result);
187 result = NULL;
188 goto out;
189 }
190 result[nbytes] = 0; /* Make sure it is really a string. */
191
192 out:
193 RegCloseKey (key_handle);
194 return result;
195}
196
197
198static char *
199find_inst_dir ()
200{
201 return read_w32_registry_string ("HKEY_LOCAL_MACHINE",
202 "Software\\freedesktop\\DBus",
203 "Install Directory");
204}
205
206
207static char *
208find_env_in_registry (const char *name)
209{
210 return read_w32_registry_string ("HKEY_LOCAL_MACHINE",
211 "Software\\freedesktop\\DBus",
212 name);
213}
214
215
216static char *
217find_program_in_inst_dir (const char *name)
218{
219 char *result = NULL;
220 char *tmp;
221
222 tmp = find_inst_dir ();
223 if (!tmp)
224 return NULL;
225
226 result = malloc (strlen (tmp) + 5 + strlen (name) + 1);
227 if (!result)
228 {
229 free (tmp);
230 return NULL;
231 }
232
233 strcpy (stpcpy (stpcpy (result, tmp), "\\bin\\"), name);
234 free (tmp);
235
236 return result;
237}
238
239
240static char *
241find_inst_subdir (const char *name)
242{
243 char *result = NULL;
244 char *tmp;
245
246 tmp = find_inst_dir ();
247 if (!tmp)
248 return NULL;
249
250 result = malloc (strlen (tmp) + 1 + strlen (name) + 1);
251 if (!result)
252 {
253 free (tmp);
254 return NULL;
255 }
256
257 strcpy (stpcpy (stpcpy (result, tmp), "\\"), name);
258 free (tmp);
259
260 return result;
261}
262
263
264static char *
265find_my_documents_folder ()
266{
267 /* One for safety, just in case. */
268 char dir[MAX_PATH + 1];
269 char *result;
270
271 dir[0] = '\0';
272 /* May return false even if successful. */
273 SHGetSpecialFolderPathA (0, dir, CSIDL_PERSONAL, 0);
274 if (dir[0] == '\0')
275 return NULL;
276
277 result = malloc (strlen (dir) + 1);
278 if (!result)
279 return NULL;
280 strcpy (result, dir);
281 return result;
282}
283
284
285#define MAX_ENV 30
286
287char *environ[MAX_ENV + 1];
288
289char *
290getenv (const char *name)
291{
292 static char *past_result;
293 char **envp;
294 int idx;
295
296 if (past_result)
297 {
298 free (past_result);
299 past_result = NULL;
300 }
301
302 if (! strcmp (name, "DBUS_VERBOSE"))
303 return past_result = get_verbose_setting ();
304 else if (! strcmp (name, "HOMEPATH"))
305 return past_result = find_my_documents_folder ();
306 else if (! strcmp (name, "DBUS_DATADIR"))
307 return past_result = find_inst_subdir ("share");
308
309 for (envp = environ; *envp != 0; envp++)
310 {
311 const char *varp = name;
312 char *ep = *envp;
313 int same_name = 0;
314
315 while (*varp == *ep && *varp != '\0')
316 {
317 ++ep;
318 ++varp;
319 };
320
321 if (*varp == '\0' && *ep == '=')
322 return ep + 1;
323 }
324
325 return NULL;
326}
327
328
329int
330putenv (char *str)
331{
332 char **envp;
333 int idx;
334 for (envp = environ; *envp != 0; envp++)
335 {
336 char *varp = str;
337 char *ep = *envp;
338 int same_name = 0;
339
340 while (*varp == *ep && *varp != '\0')
341 {
342 if (*varp == '=')
343 same_name = 1;
344 ++ep;
345 ++varp;
346 };
347
348 if (*varp == *ep && *varp == '\0')
349 return 0;
350 if (same_name)
351 {
352 *envp = str;
353 return 0;
354 }
355 }
356
357 idx = envp - environ;
358 if (idx > MAX_ENV)
359 {
360 _dbus_win_set_errno (ENOMEM);
361 return -1;
362 }
363
364 environ[idx] = str;
365 return 0;
366}
367
368
369clock_t
370clock (void)
371{
372 return GetTickCount ();
373}
374
375
376void
377abort (void)
378{
379 /* This is what windows does. */
380 exit (3);
381}
382
383
384void
385GetSystemTimeAsFileTime (LPFILETIME ftp)
386{
387 SYSTEMTIME st;
388 GetSystemTime (&st);
389 SystemTimeToFileTime (&st, ftp);
390}
391
392
393unsigned char*
394_mbsrchr (const unsigned char* str, unsigned int ch)
395{
396 /* FIXME. This is not multi-byte safe. */
397 return strrchr (str, ch);
398}
399
400
401HANDLE OpenFileMappingA(DWORD dwDesiredAccess,
402 BOOL bInheritHandle,
403 LPCSTR lpName)
404{
405 DWORD flProtect = 0;
406 HANDLE hMapping;
407
408 if (dwDesiredAccess & FILE_MAP_READ)
409 flProtect |= PAGE_READONLY;
410
411 if (dwDesiredAccess & FILE_MAP_WRITE)
412 flProtect |= PAGE_READWRITE;
413
414 SetLastError (0);
415 hMapping = CreateFileMappingA(INVALID_HANDLE_VALUE,
416 NULL, flProtect, 0, 0, lpName);
417 if (hMapping != INVALID_HANDLE_VALUE)
418 {
419 /* Just in case Windows CE changes its behaviour, we check for
420 the right error value here. */
421 if (GetLastError () != ERROR_ALREADY_EXISTS)
422 {
423 CloseHandle(hMapping);
424 hMapping = INVALID_HANDLE_VALUE;
425 }
426 }
427 return hMapping;
428}
429
430
431BOOL
432MoveFileExA (LPCSTR lpExistingFileName, LPCSTR lpNewFileName, DWORD dwFlags)
433{
434 _dbus_assert (dwFlags == MOVEFILE_REPLACE_EXISTING);
435
436 if (_dbus_file_exists (lpNewFileName))
437 {
438 BOOL result = DeleteFileA (lpNewFileName);
439 if (result == 0)
440 return FALSE;
441 }
442 return MoveFileA (lpExistingFileName, lpNewFileName);
443}
444
445
446BOOL
447SetHandleInformation (HANDLE hObject, DWORD dwMask, DWORD dwFlags)
448{
449 _dbus_assert (dwMask == (HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE));
450 _dbus_assert (dwFlags == 0);
451
452 /* Not supported on Windows CE, and actually the default. So just
453 return overwhelming success. */
454 return 1;
455}
456
457
458DWORD
459SearchPathA (LPCSTR lpPath, LPCSTR lpFileName, LPCSTR lpExtension,
460 DWORD nBufferLength, LPSTR lpBuffer, LPSTR* lpFilePart)
461{
462 char *filename;
463 char *filepart;
464 int filename_len;
465
466 _dbus_assert (lpPath == NULL);
467 _dbus_assert (lpExtension == NULL);
468
469 filename = find_program_in_inst_dir (lpFileName);
470 if (!filename)
471 {
472 SetLastError (ERROR_FILE_NOT_FOUND);
473 return 0;
474 }
475
476 filename_len = strlen (filename) + 1;
477 if (filename_len > nBufferLength)
478 {
479 free (filename);
480 return filename_len;
481 }
482
483 strcpy (lpBuffer, filename);
484 free (filename);
485
486 filepart = _mbsrchr (lpBuffer, '\\');
487 if (!filepart)
488 filepart = lpBuffer;
489 *lpFilePart = filepart;
490
491 return filename_len - 1;
492}
493
494
499 dbus_bool_t
500_dbus_getsid(char **sid)
501{
502 /* There is nothing like this on Windows CE, so we fake it. */
503 static const char asid[] = "S-1-5-21-515967899-920026266-1708537768-1000";
504 char *buf = LocalAlloc (LMEM_FIXED, sizeof (asid));
505 if (!buf)
506 {
507 _dbus_win_warn_win_error ("LocalAlloc failed", GetLastError ());
508 return FALSE;
509 }
510
511 memcpy (buf, asid, sizeof (asid));
512 *sid = buf;
513 return TRUE;
514}
515
516
517BOOL
518LookupAccountNameW (LPCWSTR lpSystemName, LPCWSTR lpAccountName, PSID Sid, PDWORD cbSid,
519 LPWSTR ReferencedDomainName, PDWORD cchReferencedDomainName, PSID_NAME_USE peUse)
520{
521 /* Currently not needed. */
522 return FALSE;
523}
524
525
526BOOL
527IsValidSid (PSID psid)
528{
529 /* Currently not needed. */
530 return FALSE;
531}
532
533
534HANDLE
535CreateFileA (LPCSTR lpFileName, DWORD dwDesiredAccess, DWORD dwSharedMode,
536 LPSECURITY_ATTRIBUTES lpSecurityAttributes,
537 DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
538 HANDLE hTemplateFile)
539{
540 wchar_t *filename;
541 HANDLE result;
542 int err;
543
544 filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
545 if (!filename)
546 return INVALID_HANDLE_VALUE;
547
548 result = CreateFileW (filename, dwDesiredAccess, dwSharedMode,
549 lpSecurityAttributes, dwCreationDisposition,
550 dwFlagsAndAttributes, hTemplateFile);
551
552 err = GetLastError ();
553 dbus_free (filename);
554 SetLastError (err);
555 return result;
556}
557
558
559BOOL
560DeleteFileA (LPCSTR lpFileName)
561{
562 wchar_t *filename;
563 BOOL result;
564 int err;
565
566 filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
567 if (!filename)
568 return FALSE;
569
570 result = DeleteFileW (filename);
571
572 err = GetLastError ();
573 dbus_free (filename);
574 SetLastError (err);
575 return result;
576}
577
578
579BOOL
580MoveFileA (LPCSTR lpExistingFileName, LPCSTR lpNewFileName)
581{
582 wchar_t *existing_filename;
583 wchar_t *new_filename;
584 BOOL result;
585 int err;
586
587 existing_filename = _dbus_win_utf8_to_utf16 (lpExistingFileName, NULL);
588 if (! existing_filename)
589 return FALSE;
590
591 new_filename = _dbus_win_utf8_to_utf16 (lpNewFileName, NULL);
592 if (! new_filename)
593 {
594 dbus_free (existing_filename);
595 return FALSE;
596 }
597
598 result = MoveFileW (existing_filename, new_filename);
599
600 err = GetLastError ();
601 dbus_free (existing_filename);
602 dbus_free (new_filename);
603 SetLastError (err);
604 return result;
605}
606
607
608DWORD
609GetFileAttributesA(LPCSTR lpFileName)
610{
611 wchar_t *filename;
612 DWORD result;
613 int err;
614
615 filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
616 if (!filename)
617 return INVALID_FILE_ATTRIBUTES;
618
619 result = GetFileAttributesW (filename);
620
621 err = GetLastError ();
622 dbus_free (filename);
623 SetLastError (err);
624 return result;
625}
626
627
628BOOL
629GetFileAttributesExA (LPCSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
630 PVOID lpFileInformation)
631{
632 wchar_t *filename;
633 DWORD result;
634 int err;
635
636 filename = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
637 if (!filename)
638 return INVALID_FILE_ATTRIBUTES;
639
640 result = GetFileAttributesExW (filename, fInfoLevelId, lpFileInformation);
641
642 err = GetLastError ();
643 dbus_free (filename);
644 SetLastError (err);
645 return result;
646}
647
648
649HANDLE
650CreateFileMappingA (HANDLE hFile, LPSECURITY_ATTRIBUTES lpAttributes,
651 DWORD flProtect, DWORD dwMaximumSizeHigh,
652 DWORD dwMaximumSizeLow, LPCSTR lpName)
653{
654 wchar_t *name;
655 HANDLE result;
656 int err;
657
658 if (lpName)
659 {
660 name = _dbus_win_utf8_to_utf16 (lpName, NULL);
661 if (!name)
662 return INVALID_HANDLE_VALUE;
663 }
664 else
665 name = NULL;
666
667 result = CreateFileMappingW (hFile, lpAttributes, flProtect,
668 dwMaximumSizeHigh, dwMaximumSizeLow,
669 name);
670
671 err = GetLastError ();
672 dbus_free (name);
673 SetLastError (err);
674 return result;
675}
676
677
678BOOL
679CreateDirectoryA (LPCSTR lpPathName, LPSECURITY_ATTRIBUTES lpSecurityAttributes)
680{
681 wchar_t *pathname;
682 BOOL result;
683 int err;
684
685 pathname = _dbus_win_utf8_to_utf16 (lpPathName, NULL);
686 if (!pathname)
687 return FALSE;
688
689 result = CreateDirectoryW (pathname, lpSecurityAttributes);
690
691 err = GetLastError ();
692 dbus_free (pathname);
693 SetLastError (err);
694 return result;
695}
696
697
698BOOL
699RemoveDirectoryA (LPCSTR lpPathName)
700{
701 wchar_t *pathname;
702 BOOL result;
703 int err;
704
705 pathname = _dbus_win_utf8_to_utf16 (lpPathName, NULL);
706 if (!pathname)
707 return FALSE;
708
709 result = RemoveDirectoryW (pathname);
710
711 err = GetLastError ();
712 dbus_free (pathname);
713 SetLastError (err);
714 return result;
715}
716
717
718static BOOL
719convert_find_data (LPWIN32_FIND_DATAW fdw, LPWIN32_FIND_DATAA fda)
720{
721 char *filename;
722 int len;
723
724 fda->dwFileAttributes = fdw->dwFileAttributes;
725 fda->ftCreationTime = fdw->ftCreationTime;
726 fda->ftLastAccessTime = fdw->ftLastAccessTime;
727 fda->ftLastWriteTime = fdw->ftLastWriteTime;
728 fda->nFileSizeHigh = fdw->nFileSizeHigh;
729 fda->nFileSizeLow = fdw->nFileSizeLow;
730
731 filename = _dbus_win_utf16_to_utf8 (fdw->cFileName, NULL);
732 if (!filename)
733 return FALSE;
734
735 len = sizeof (fda->cFileName);
736 strncpy (fda->cFileName, filename, len);
737 fda->cFileName[len - 1] = '\0';
738
739 return TRUE;
740}
741
742
743HANDLE
744FindFirstFileA (LPCSTR lpFileName, LPWIN32_FIND_DATAA lpFindFileData)
745{
746 wchar_t *pathname;
747 WIN32_FIND_DATAW find_file_data;
748 HANDLE result;
749 int err;
750
751 pathname = _dbus_win_utf8_to_utf16 (lpFileName, NULL);
752 if (!pathname)
753 return INVALID_HANDLE_VALUE;
754
755 result = FindFirstFileW (pathname, &find_file_data);
756 if (result != INVALID_HANDLE_VALUE)
757 {
758 BOOL res = convert_find_data (&find_file_data, lpFindFileData);
759 if (! res)
760 {
761 err = GetLastError ();
762 FindClose (result);
763 SetLastError (err);
764 result = INVALID_HANDLE_VALUE;
765 }
766 }
767
768 err = GetLastError ();
769 dbus_free (pathname);
770 SetLastError (err);
771 return result;
772}
773
774
775BOOL
776FindNextFileA (HANDLE hFindFile, LPWIN32_FIND_DATAA lpFindFileData)
777{
778 WIN32_FIND_DATAW find_file_data;
779 BOOL result;
780 int err;
781
782 result = FindNextFileW (hFindFile, &find_file_data);
783 if (result)
784 result = convert_find_data (&find_file_data, lpFindFileData);
785
786 return result;
787}
788
789
790HANDLE
791CreateMutexA (LPSECURITY_ATTRIBUTES lpMutexAttributes, BOOL bInitialOwner,
792 LPCSTR lpName)
793{
794 wchar_t *name;
795 HANDLE result;
796 int err;
797
798 if (lpName)
799 {
800 name = _dbus_win_utf8_to_utf16 (lpName, NULL);
801 if (!name)
802 return INVALID_HANDLE_VALUE;
803 }
804 else
805 name = NULL;
806
807 result = CreateMutexW (lpMutexAttributes, bInitialOwner, name);
808
809 err = GetLastError ();
810 dbus_free (name);
811 SetLastError (err);
812 return result;
813}
814
815
816BOOL
817CreateProcessA (LPCSTR pszImageName, LPSTR pszCmdLine,
818 LPSECURITY_ATTRIBUTES psaProcess,
819 LPSECURITY_ATTRIBUTES psaThread, BOOL fInheritHandles,
820 DWORD fdwCreate, PVOID pvEnvironment, LPCSTR pszCurDir,
821 LPSTARTUPINFOA psiStartInfo,
822 LPPROCESS_INFORMATION pProcInfo)
823{
824 wchar_t *image_name = NULL;
825 wchar_t *cmd_line = NULL;
826 BOOL result;
827 int err;
828
829 _dbus_assert (psaProcess == NULL);
830 _dbus_assert (psaThread == NULL);
831 _dbus_assert (fInheritHandles == FALSE);
832 _dbus_assert (pvEnvironment == NULL);
833 _dbus_assert (pszCurDir == NULL);
834 /* psiStartInfo is generally not NULL. */
835
836 if (pszImageName)
837 {
838 image_name = _dbus_win_utf8_to_utf16 (pszImageName, NULL);
839 if (!image_name)
840 return 0;
841 }
842 if (pszCmdLine)
843 {
844 cmd_line = _dbus_win_utf8_to_utf16 (pszCmdLine, NULL);
845 if (!cmd_line)
846 {
847 if (image_name)
848 dbus_free (image_name);
849 return 0;
850 }
851 }
852
853 result = CreateProcessW (image_name, cmd_line, NULL, NULL, FALSE,
854 fdwCreate, NULL, NULL, NULL, pProcInfo);
855
856 err = GetLastError ();
857 dbus_free (image_name);
858 dbus_free (cmd_line);
859 SetLastError (err);
860 return result;
861}
862
863
864LONG
865RegOpenKeyExA (HKEY hKey, LPCSTR lpSubKey, DWORD ulOptions,
866 REGSAM samDesired, PHKEY phkResult)
867{
868 wchar_t *subkey;
869 LONG result;
870 int err;
871
872 if (lpSubKey)
873 {
874 subkey = _dbus_win_utf8_to_utf16 (lpSubKey, NULL);
875 if (!subkey)
876 return 0;
877 }
878 else
879 subkey = NULL;
880
881 result = RegOpenKeyEx (hKey, subkey, ulOptions, samDesired, phkResult);
882
883 err = GetLastError ();
884 dbus_free (subkey);
885 SetLastError (err);
886 return result;
887}
888
889
890LONG
891RegQueryValueExA (HKEY hKey, LPCSTR lpValueName, LPDWORD lpReserved,
892 LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)
893{
894 wchar_t *name;
895 LONG err;
896 BYTE *data;
897 DWORD data_len;
898 DWORD type;
899
900 if (lpValueName)
901 {
902 name = _dbus_win_utf8_to_utf16 (lpValueName, NULL);
903 if (!name)
904 return GetLastError ();
905 }
906 else
907 name = NULL;
908
909 data_len = 0;
910 err = RegQueryValueExW (hKey, name, lpReserved, lpType, NULL, &data_len);
911 if (err || !lpcbData)
912 {
913 dbus_free (name);
914 return err;
915 }
916
917 data = malloc (data_len + sizeof (wchar_t));
918 if (!data)
919 {
920 dbus_free (name);
921 return ERROR_NOT_ENOUGH_MEMORY;
922 }
923
924 err = RegQueryValueExW (hKey, name, lpReserved, &type, data, &data_len);
925 if (lpType)
926 *lpType = type;
927 dbus_free (name);
928 /* If err is ERROR_MORE_DATA, there probably was a race condition.
929 We can punt this to the caller just as well. */
930 if (err)
931 {
932 free (data);
933 return err;
934 }
935
936 /* NOTE: REG_MULTI_SZ and REG_EXPAND_SZ not supported, because they
937 are not needed in this module. */
938 if (type == REG_SZ)
939 {
940 char *data_c;
941 int data_c_len;
942
943 /* This is valid since we allocated one more above. */
944 data[data_len] = '\0';
945 data[data_len + 1] = '\0';
946
947 /* The cast is valid because malloc guarantees alignment of
948 basic types. */
949 data_c = _dbus_win_utf16_to_utf8 ((wchar_t*) data, NULL);
950 if (!data_c)
951 {
952 free (data);
953 return GetLastError();
954 }
955
956 data_c_len = strlen (data_c) + 1;
957 _dbus_assert (data_c_len <= data_len + sizeof (wchar_t));
958 memcpy (data, data_c, data_c_len);
959 data_len = data_c_len;
960 dbus_free (data_c);
961 }
962
963 /* DATA and DATA_LEN now contain the result. */
964 if (lpData)
965 {
966 if (data_len > *lpcbData)
967 err = ERROR_MORE_DATA;
968 else
969 memcpy (lpData, data, data_len);
970 }
971 free (data);
972 *lpcbData = data_len;
973 return err;
974}
975
976
977DWORD
978FormatMessageA (DWORD dwFlags, PCVOID lpSource, DWORD dwMessageId,
979 DWORD dwLanguageId, LPSTR lpBuffer, DWORD nSize,
980 va_list* Arguments)
981{
982 LPWSTR buffer_w = NULL;
983 LPSTR buffer_c;
984 DWORD len;
985 char *buffer_new;
986 DWORD buffer_new_len;
987 BOOL buffer_w_free;
988
989 len = FormatMessageW (dwFlags | FORMAT_MESSAGE_ALLOCATE_BUFFER,
990 lpSource, dwMessageId, dwLanguageId,
991 (LPWSTR) &buffer_w, 0, Arguments);
992 if (len == 0)
993 return 0;
994
995 buffer_c = _dbus_win_utf16_to_utf8 (buffer_w, NULL);
996 if (! buffer_c)
997 {
998 LocalFree (buffer_w);
999 return 0;
1000 }
1001
1002 if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER)
1003 {
1004 /* We need to return a buffer that's freeable with LocalFree. */
1005 buffer_new = (char *) buffer_w;
1006 buffer_new_len = sizeof (wchar_t) * (len + 1);
1007 buffer_w_free = FALSE;
1008 /* Avoid alignment issue by using memcpy. */
1009 memcpy (lpBuffer, &buffer_new, sizeof (buffer_new));
1010 }
1011 else
1012 {
1013 buffer_new = lpBuffer;
1014 buffer_new_len = nSize;
1015 buffer_w_free = TRUE;
1016 }
1017
1018 strncpy (buffer_new, buffer_c, buffer_new_len);
1019 dbus_free (buffer_c);
1020 buffer_new[buffer_new_len - 1] = '\0';
1021 if (buffer_w_free)
1022 LocalFree (buffer_w);
1023
1024 /* strlen is correct (not _mbstrlen), because we want storage and
1025 not string length. */
1026 return strlen (buffer_new);
1027}
1028
1029
1030DWORD
1031GetModuleFileNameA (HINSTANCE hModule, LPSTR lpFilename, DWORD nSize)
1032{
1033 wchar_t *filename_w;
1034 char *filename_c;
1035 DWORD len;
1036
1037 if (nSize == 0)
1038 {
1039 /* Windows XP/2000. */
1040 SetLastError (0);
1041 return 0;
1042 }
1043
1044 filename_w = malloc (sizeof (wchar_t) * nSize);
1045 if (! filename_w)
1046 return 0;
1047
1048 len = GetModuleFileNameW (hModule, filename_w, nSize);
1049 if (len == 0)
1050 {
1051 /* Note: If we fail with ERROR_INSUFFICIENT_BUFFER, this is still
1052 (approximately) correct. */
1053 free (filename_w);
1054 return 0;
1055 }
1056
1057 filename_w[nSize - 1] = '\0';
1058 filename_c = _dbus_win_utf16_to_utf8 (filename_w, NULL);
1059 free (filename_w);
1060 if (! filename_c)
1061 return 0;
1062
1063 strncpy (lpFilename, filename_c, nSize);
1064 dbus_free (filename_c);
1065 lpFilename[nSize - 1] = '\0';
1066 /* strlen is correct (not _mbstrlen), because we want storage and
1067 not string length. */
1068 return strlen (lpFilename);
1069}
1070
1071
1072DWORD
1073GetTempPathA (DWORD nBufferLength, LPSTR lpBuffer)
1074{
1075 wchar_t dummy[1];
1076 DWORD len;
1077
1078 len = GetTempPathW (0, dummy);
1079 if (len == 0)
1080 return 0;
1081
1082 _dbus_assert (len <= MAX_PATH);
1083
1084 /* Better be safe than sorry. MSDN doesn't say if len is with or
1085 without terminating 0. */
1086 len++;
1087
1088 {
1089 wchar_t *buffer_w;
1090 DWORD len_w;
1091 char *buffer_c;
1092 DWORD len_c;
1093
1094 buffer_w = malloc (sizeof (wchar_t) * len);
1095 if (! buffer_w)
1096 return 0;
1097
1098 len_w = GetTempPathW (len, buffer_w);
1099 /* Give up if we still can't get at it. */
1100 if (len_w == 0 || len_w >= len)
1101 {
1102 free (buffer_w);
1103 return 0;
1104 }
1105
1106 /* Better be really safe. */
1107 buffer_w[len_w] = '\0';
1108
1109 buffer_c = _dbus_win_utf16_to_utf8 (buffer_w, NULL);
1110 free (buffer_w);
1111 if (! buffer_c)
1112 return 0;
1113
1114 /* strlen is correct (not _mbstrlen), because we want storage and
1115 not string length. */
1116 len_c = strlen (buffer_c) + 1;
1117 if (len_c > nBufferLength)
1118 return len_c;
1119
1120 strcpy (lpBuffer, buffer_c);
1121 dbus_free (buffer_c);
1122 return len_c - 1;
1123 }
1124}
1125
1126
1127BOOL
1128SHGetSpecialFolderPathA (HWND hwndOwner, LPSTR lpszPath, int nFolder,
1129 BOOL fCreate)
1130{
1131 wchar_t path[MAX_PATH];
1132 char *path_c;
1133 BOOL result;
1134
1135 path[0] = (wchar_t) 0;
1136 result = SHGetSpecialFolderPathW (hwndOwner, path, nFolder, fCreate);
1137 /* Note: May return false even if succeeds. */
1138
1139 path[MAX_PATH - 1] = (wchar_t) 0;
1140 path_c = _dbus_win_utf16_to_utf8 (path, NULL);
1141 if (! path_c)
1142 return 0;
1143
1144 strncpy (lpszPath, path_c, MAX_PATH);
1145 dbus_free (path_c);
1146 lpszPath[MAX_PATH - 1] = '\0';
1147 return result;
1148}
1149
1150
1151void
1152OutputDebugStringA (LPCSTR lpOutputString)
1153{
1154 wchar_t *str;
1155 HANDLE result;
1156 int err;
1157
1158 str = _dbus_win_utf8_to_utf16 (lpOutputString, NULL);
1159 if (!str)
1160 return;
1161
1162 OutputDebugStringW (str);
1163
1164 err = GetLastError ();
1165 dbus_free (str);
1166 SetLastError (err);
1167}
_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