1 /*
2 * File handling functions
3 *
4 * Copyright 1993 Erik Bos
5 * Copyright 1996, 2004 Alexandre Julliard
6 * Copyright 2003 Eric Pouech
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 */
23
24 #include "config.h"
25 #include "wine/port.h"
26
27 #include <errno.h>
28 #include <stdio.h>
29 #include <stdarg.h>
30
31 #define NONAMELESSUNION
32 #define NONAMELESSSTRUCT
33 #include "winerror.h"
34 #include "ntstatus.h"
35 #define WIN32_NO_STATUS
36 #include "windef.h"
37 #include "winbase.h"
38 #include "winternl.h"
39
40 #include "kernel_private.h"
41 #include "wine/unicode.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(file);
45
46 #define MAX_PATHNAME_LEN 1024
47
48
49 /* check if a file name is for an executable file (.exe or .com) */
50 static inline BOOL is_executable( const WCHAR *name )
51 {
52 static const WCHAR exeW[] = {'.','e','x','e',0};
53 static const WCHAR comW[] = {'.','c','o','m',0};
54 int len = strlenW(name);
55
56 if (len < 4) return FALSE;
57 return (!strcmpiW( name + len - 4, exeW ) || !strcmpiW( name + len - 4, comW ));
58 }
59
60 /***********************************************************************
61 * copy_filename_WtoA
62 *
63 * copy a file name back to OEM/Ansi, but only if the buffer is large enough
64 */
65 static DWORD copy_filename_WtoA( LPCWSTR nameW, LPSTR buffer, DWORD len )
66 {
67 UNICODE_STRING strW;
68 DWORD ret;
69 BOOL is_ansi = AreFileApisANSI();
70
71 RtlInitUnicodeString( &strW, nameW );
72
73 ret = is_ansi ? RtlUnicodeStringToAnsiSize(&strW) : RtlUnicodeStringToOemSize(&strW);
74 if (buffer && ret <= len)
75 {
76 ANSI_STRING str;
77
78 str.Buffer = buffer;
79 str.MaximumLength = len;
80 if (is_ansi)
81 RtlUnicodeStringToAnsiString( &str, &strW, FALSE );
82 else
83 RtlUnicodeStringToOemString( &str, &strW, FALSE );
84 ret = str.Length; /* length without terminating 0 */
85 }
86 return ret;
87 }
88
89 /***********************************************************************
90 * add_boot_rename_entry
91 *
92 * Adds an entry to the registry that is loaded when windows boots and
93 * checks if there are some files to be removed or renamed/moved.
94 * <fn1> has to be valid and <fn2> may be NULL. If both pointers are
95 * non-NULL then the file is moved, otherwise it is deleted. The
96 * entry of the registrykey is always appended with two zero
97 * terminated strings. If <fn2> is NULL then the second entry is
98 * simply a single 0-byte. Otherwise the second filename goes
99 * there. The entries are prepended with \??\ before the path and the
100 * second filename gets also a '!' as the first character if
101 * MOVEFILE_REPLACE_EXISTING is set. After the final string another
102 * 0-byte follows to indicate the end of the strings.
103 * i.e.:
104 * \??\D:\test\file1[0]
105 * !\??\D:\test\file1_renamed[0]
106 * \??\D:\Test|delete[0]
107 * [0] <- file is to be deleted, second string empty
108 * \??\D:\test\file2[0]
109 * !\??\D:\test\file2_renamed[0]
110 * [0] <- indicates end of strings
111 *
112 * or:
113 * \??\D:\test\file1[0]
114 * !\??\D:\test\file1_renamed[0]
115 * \??\D:\Test|delete[0]
116 * [0] <- file is to be deleted, second string empty
117 * [0] <- indicates end of strings
118 *
119 */
120 static BOOL add_boot_rename_entry( LPCWSTR source, LPCWSTR dest, DWORD flags )
121 {
122 static const WCHAR ValueName[] = {'P','e','n','d','i','n','g',
123 'F','i','l','e','R','e','n','a','m','e',
124 'O','p','e','r','a','t','i','o','n','s',0};
125 static const WCHAR SessionW[] = {'M','a','c','h','i','n','e','\\',
126 'S','y','s','t','e','m','\\',
127 'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
128 'C','o','n','t','r','o','l','\\',
129 'S','e','s','s','i','o','n',' ','M','a','n','a','g','e','r',0};
130 static const int info_size = FIELD_OFFSET( KEY_VALUE_PARTIAL_INFORMATION, Data );
131
132 OBJECT_ATTRIBUTES attr;
133 UNICODE_STRING nameW, source_name, dest_name;
134 KEY_VALUE_PARTIAL_INFORMATION *info;
135 BOOL rc = FALSE;
136 HANDLE Reboot = 0;
137 DWORD len1, len2;
138 DWORD DataSize = 0;
139 BYTE *Buffer = NULL;
140 WCHAR *p;
141
142 if (!RtlDosPathNameToNtPathName_U( source, &source_name, NULL, NULL ))
143 {
144 SetLastError( ERROR_PATH_NOT_FOUND );
145 return FALSE;
146 }
147 dest_name.Buffer = NULL;
148 if (dest && !RtlDosPathNameToNtPathName_U( dest, &dest_name, NULL, NULL ))
149 {
150 RtlFreeUnicodeString( &source_name );
151 SetLastError( ERROR_PATH_NOT_FOUND );
152 return FALSE;
153 }
154
155 attr.Length = sizeof(attr);
156 attr.RootDirectory = 0;
157 attr.ObjectName = &nameW;
158 attr.Attributes = 0;
159 attr.SecurityDescriptor = NULL;
160 attr.SecurityQualityOfService = NULL;
161 RtlInitUnicodeString( &nameW, SessionW );
162
163 if (NtCreateKey( &Reboot, KEY_ALL_ACCESS, &attr, 0, NULL, 0, NULL ) != STATUS_SUCCESS)
164 {
165 WARN("Error creating key for reboot managment [%s]\n",
166 "SYSTEM\\CurrentControlSet\\Control\\Session Manager");
167 RtlFreeUnicodeString( &source_name );
168 RtlFreeUnicodeString( &dest_name );
169 return FALSE;
170 }
171
172 len1 = source_name.Length + sizeof(WCHAR);
173 if (dest)
174 {
175 len2 = dest_name.Length + sizeof(WCHAR);
176 if (flags & MOVEFILE_REPLACE_EXISTING)
177 len2 += sizeof(WCHAR); /* Plus 1 because of the leading '!' */
178 }
179 else len2 = sizeof(WCHAR); /* minimum is the 0 characters for the empty second string */
180
181 RtlInitUnicodeString( &nameW, ValueName );
182
183 /* First we check if the key exists and if so how many bytes it already contains. */
184 if (NtQueryValueKey( Reboot, &nameW, KeyValuePartialInformation,
185 NULL, 0, &DataSize ) == STATUS_BUFFER_OVERFLOW)
186 {
187 if (!(Buffer = HeapAlloc( GetProcessHeap(), 0, DataSize + len1 + len2 + sizeof(WCHAR) )))
188 goto Quit;
189 if (NtQueryValueKey( Reboot, &nameW, KeyValuePartialInformation,
190 Buffer, DataSize, &DataSize )) goto Quit;
191 info = (KEY_VALUE_PARTIAL_INFORMATION *)Buffer;
192 if (info->Type != REG_MULTI_SZ) goto Quit;
193 if (DataSize > sizeof(info)) DataSize -= sizeof(WCHAR); /* remove terminating null (will be added back later) */
194 }
195 else
196 {
197 DataSize = info_size;
198 if (!(Buffer = HeapAlloc( GetProcessHeap(), 0, DataSize + len1 + len2 + sizeof(WCHAR) )))
199 goto Quit;
200 }
201
202 memcpy( Buffer + DataSize, source_name.Buffer, len1 );
203 DataSize += len1;
204 p = (WCHAR *)(Buffer + DataSize);
205 if (dest)
206 {
207 if (flags & MOVEFILE_REPLACE_EXISTING)
208 *p++ = '!';
209 memcpy( p, dest_name.Buffer, len2 );
210 DataSize += len2;
211 }
212 else
213 {
214 *p = 0;
215 DataSize += sizeof(WCHAR);
216 }
217
218 /* add final null */
219 p = (WCHAR *)(Buffer + DataSize);
220 *p = 0;
221 DataSize += sizeof(WCHAR);
222
223 rc = !NtSetValueKey(Reboot, &nameW, 0, REG_MULTI_SZ, Buffer + info_size, DataSize - info_size);
224
225 Quit:
226 RtlFreeUnicodeString( &source_name );
227 RtlFreeUnicodeString( &dest_name );
228 if (Reboot) NtClose(Reboot);
229 HeapFree( GetProcessHeap(), 0, Buffer );
230 return(rc);
231 }
232
233
234 /***********************************************************************
235 * GetFullPathNameW (KERNEL32.@)
236 * NOTES
237 * if the path closed with '\', *lastpart is 0
238 */
239 DWORD WINAPI GetFullPathNameW( LPCWSTR name, DWORD len, LPWSTR buffer,
240 LPWSTR *lastpart )
241 {
242 return RtlGetFullPathName_U(name, len * sizeof(WCHAR), buffer, lastpart) / sizeof(WCHAR);
243 }
244
245 /***********************************************************************
246 * GetFullPathNameA (KERNEL32.@)
247 * NOTES
248 * if the path closed with '\', *lastpart is 0
249 */
250 DWORD WINAPI GetFullPathNameA( LPCSTR name, DWORD len, LPSTR buffer,
251 LPSTR *lastpart )
252 {
253 WCHAR *nameW;
254 WCHAR bufferW[MAX_PATH];
255 DWORD ret;
256
257 if (!(nameW = FILE_name_AtoW( name, FALSE ))) return 0;
258
259 ret = GetFullPathNameW( nameW, MAX_PATH, bufferW, NULL);
260
261 if (!ret) return 0;
262 if (ret > MAX_PATH)
263 {
264 SetLastError(ERROR_FILENAME_EXCED_RANGE);
265 return 0;
266 }
267 ret = copy_filename_WtoA( bufferW, buffer, len );
268 if (ret < len && lastpart)
269 {
270 LPSTR p = buffer + strlen(buffer) - 1;
271
272 if (*p != '\\')
273 {
274 while ((p > buffer + 2) && (*p != '\\')) p--;
275 *lastpart = p + 1;
276 }
277 else *lastpart = NULL;
278 }
279 return ret;
280 }
281
282
283 /***********************************************************************
284 * GetLongPathNameW (KERNEL32.@)
285 *
286 * NOTES
287 * observed (Win2000):
288 * shortpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
289 * shortpath="": LastError=ERROR_PATH_NOT_FOUND, ret=0
290 */
291 DWORD WINAPI GetLongPathNameW( LPCWSTR shortpath, LPWSTR longpath, DWORD longlen )
292 {
293 WCHAR tmplongpath[MAX_PATHNAME_LEN];
294 LPCWSTR p;
295 DWORD sp = 0, lp = 0;
296 DWORD tmplen;
297 BOOL unixabsolute;
298 WIN32_FIND_DATAW wfd;
299 HANDLE goit;
300
301 if (!shortpath)
302 {
303 SetLastError(ERROR_INVALID_PARAMETER);
304 return 0;
305 }
306 if (!shortpath[0])
307 {
308 SetLastError(ERROR_PATH_NOT_FOUND);
309 return 0;
310 }
311
312 TRACE("%s,%p,%d\n", debugstr_w(shortpath), longpath, longlen);
313
314 if (shortpath[0] == '\\' && shortpath[1] == '\\')
315 {
316 ERR("UNC pathname %s\n", debugstr_w(shortpath));
317 lstrcpynW( longpath, shortpath, longlen );
318 return strlenW(longpath);
319 }
320
321 unixabsolute = (shortpath[0] == '/');
322
323 /* check for drive letter */
324 if (!unixabsolute && shortpath[1] == ':' )
325 {
326 tmplongpath[0] = shortpath[0];
327 tmplongpath[1] = ':';
328 lp = sp = 2;
329 }
330
331 while (shortpath[sp])
332 {
333 /* check for path delimiters and reproduce them */
334 if (shortpath[sp] == '\\' || shortpath[sp] == '/')
335 {
336 if (!lp || tmplongpath[lp-1] != '\\')
337 {
338 /* strip double "\\" */
339 tmplongpath[lp++] = '\\';
340 }
341 tmplongpath[lp] = 0; /* terminate string */
342 sp++;
343 continue;
344 }
345
346 p = shortpath + sp;
347 if (sp == 0 && p[0] == '.' && (p[1] == '/' || p[1] == '\\'))
348 {
349 tmplongpath[lp++] = *p++;
350 tmplongpath[lp++] = *p++;
351 }
352 for (; *p && *p != '/' && *p != '\\'; p++);
353 tmplen = p - (shortpath + sp);
354 lstrcpynW(tmplongpath + lp, shortpath + sp, tmplen + 1);
355 /* Check if the file exists and use the existing file name */
356 goit = FindFirstFileW(tmplongpath, &wfd);
357 if (goit == INVALID_HANDLE_VALUE)
358 {
359 TRACE("not found %s!\n", debugstr_w(tmplongpath));
360 SetLastError ( ERROR_FILE_NOT_FOUND );
361 return 0;
362 }
363 FindClose(goit);
364 strcpyW(tmplongpath + lp, wfd.cFileName);
365 lp += strlenW(tmplongpath + lp);
366 sp += tmplen;
367 }
368 tmplen = strlenW(shortpath) - 1;
369 if ((shortpath[tmplen] == '/' || shortpath[tmplen] == '\\') &&
370 (tmplongpath[lp - 1] != '/' && tmplongpath[lp - 1] != '\\'))
371 tmplongpath[lp++] = shortpath[tmplen];
372 tmplongpath[lp] = 0;
373
374 tmplen = strlenW(tmplongpath) + 1;
375 if (tmplen <= longlen)
376 {
377 strcpyW(longpath, tmplongpath);
378 TRACE("returning %s\n", debugstr_w(longpath));
379 tmplen--; /* length without 0 */
380 }
381
382 return tmplen;
383 }
384
385 /***********************************************************************
386 * GetLongPathNameA (KERNEL32.@)
387 */
388 DWORD WINAPI GetLongPathNameA( LPCSTR shortpath, LPSTR longpath, DWORD longlen )
389 {
390 WCHAR *shortpathW;
391 WCHAR longpathW[MAX_PATH];
392 DWORD ret;
393
394 TRACE("%s\n", debugstr_a(shortpath));
395
396 if (!(shortpathW = FILE_name_AtoW( shortpath, FALSE ))) return 0;
397
398 ret = GetLongPathNameW(shortpathW, longpathW, MAX_PATH);
399
400 if (!ret) return 0;
401 if (ret > MAX_PATH)
402 {
403 SetLastError(ERROR_FILENAME_EXCED_RANGE);
404 return 0;
405 }
406 return copy_filename_WtoA( longpathW, longpath, longlen );
407 }
408
409
410 /***********************************************************************
411 * GetShortPathNameW (KERNEL32.@)
412 *
413 * NOTES
414 * observed:
415 * longpath=NULL: LastError=ERROR_INVALID_PARAMETER, ret=0
416 * longpath="" or invalid: LastError=ERROR_BAD_PATHNAME, ret=0
417 *
418 * more observations ( with NT 3.51 (WinDD) ):
419 * longpath <= 8.3 -> just copy longpath to shortpath
420 * longpath > 8.3 ->
421 * a) file does not exist -> return 0, LastError = ERROR_FILE_NOT_FOUND
422 * b) file does exist -> set the short filename.
423 * - trailing slashes are reproduced in the short name, even if the
424 * file is not a directory
425 * - the absolute/relative path of the short name is reproduced like found
426 * in the long name
427 * - longpath and shortpath may have the same address
428 * Peter Ganten, 1999
429 */
430 DWORD WINAPI GetShortPathNameW( LPCWSTR longpath, LPWSTR shortpath, DWORD shortlen )
431 {
432 WCHAR tmpshortpath[MAX_PATHNAME_LEN];
433 LPCWSTR p;
434 DWORD sp = 0, lp = 0;
435 DWORD tmplen;
436 WIN32_FIND_DATAW wfd;
437 HANDLE goit;
438 UNICODE_STRING ustr;
439 WCHAR ustr_buf[8+1+3+1];
440
441 TRACE("%s\n", debugstr_w(longpath));
442
443 if (!longpath)
444 {
445 SetLastError(ERROR_INVALID_PARAMETER);
446 return 0;
447 }
448 if (!longpath[0])
449 {
450 SetLastError(ERROR_BAD_PATHNAME);
451 return 0;
452 }
453
454 /* check for drive letter */
455 if (longpath[0] != '/' && longpath[1] == ':' )
456 {
457 tmpshortpath[0] = longpath[0];
458 tmpshortpath[1] = ':';
459 sp = lp = 2;
460 }
461
462 ustr.Buffer = ustr_buf;
463 ustr.Length = 0;
464 ustr.MaximumLength = sizeof(ustr_buf);
465
466 while (longpath[lp])
467 {
468 /* check for path delimiters and reproduce them */
469 if (longpath[lp] == '\\' || longpath[lp] == '/')
470 {
471 if (!sp || tmpshortpath[sp-1] != '\\')
472 {
473 /* strip double "\\" */
474 tmpshortpath[sp] = '\\';
475 sp++;
476 }
477 tmpshortpath[sp] = 0; /* terminate string */
478 lp++;
479 continue;
480 }
481
482 for (p = longpath + lp; *p && *p != '/' && *p != '\\'; p++);
483 tmplen = p - (longpath + lp);
484 lstrcpynW(tmpshortpath + sp, longpath + lp, tmplen + 1);
485 /* Check, if the current element is a valid dos name */
486 if (tmplen <= 8+1+3)
487 {
488 BOOLEAN spaces;
489 memcpy(ustr_buf, longpath + lp, tmplen * sizeof(WCHAR));
490 ustr_buf[tmplen] = '\0';
491 ustr.Length = tmplen * sizeof(WCHAR);
492 if (RtlIsNameLegalDOS8Dot3(&ustr, NULL, &spaces) && !spaces)
493 {
494 sp += tmplen;
495 lp += tmplen;
496 continue;
497 }
498 }
499
500 /* Check if the file exists and use the existing short file name */
501 goit = FindFirstFileW(tmpshortpath, &wfd);
502 if (goit == INVALID_HANDLE_VALUE) goto notfound;
503 FindClose(goit);
504 strcpyW(tmpshortpath + sp, wfd.cAlternateFileName);
505 sp += strlenW(tmpshortpath + sp);
506 lp += tmplen;
507 }
508 tmpshortpath[sp] = 0;
509
510 tmplen = strlenW(tmpshortpath) + 1;
511 if (tmplen <= shortlen)
512 {
513 strcpyW(shortpath, tmpshortpath);
514 TRACE("returning %s\n", debugstr_w(shortpath));
515 tmplen--; /* length without 0 */
516 }
517
518 return tmplen;
519
520 notfound:
521 TRACE("not found!\n" );
522 SetLastError ( ERROR_FILE_NOT_FOUND );
523 return 0;
524 }
525
526 /***********************************************************************
527 * GetShortPathNameA (KERNEL32.@)
528 */
529 DWORD WINAPI GetShortPathNameA( LPCSTR longpath, LPSTR shortpath, DWORD shortlen )
530 {
531 WCHAR *longpathW;
532 WCHAR shortpathW[MAX_PATH];
533 DWORD ret;
534
535 TRACE("%s\n", debugstr_a(longpath));
536
537 if (!(longpathW = FILE_name_AtoW( longpath, FALSE ))) return 0;
538
539 ret = GetShortPathNameW(longpathW, shortpathW, MAX_PATH);
540
541 if (!ret) return 0;
542 if (ret > MAX_PATH)
543 {
544 SetLastError(ERROR_FILENAME_EXCED_RANGE);
545 return 0;
546 }
547 return copy_filename_WtoA( shortpathW, shortpath, shortlen );
548 }
549
550
551 /***********************************************************************
552 * GetTempPathA (KERNEL32.@)
553 */
554 DWORD WINAPI GetTempPathA( DWORD count, LPSTR path )
555 {
556 WCHAR pathW[MAX_PATH];
557 UINT ret;
558
559 ret = GetTempPathW(MAX_PATH, pathW);
560
561 if (!ret)
562 return 0;
563
564 if (ret > MAX_PATH)
565 {
566 SetLastError(ERROR_FILENAME_EXCED_RANGE);
567 return 0;
568 }
569 return copy_filename_WtoA( pathW, path, count );
570 }
571
572
573 /***********************************************************************
574 * GetTempPathW (KERNEL32.@)
575 */
576 DWORD WINAPI GetTempPathW( DWORD count, LPWSTR path )
577 {
578 static const WCHAR tmp[] = { 'T', 'M', 'P', 0 };
579 static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
580 static const WCHAR userprofile[] = { 'U','S','E','R','P','R','O','F','I','L','E',0 };
581 WCHAR tmp_path[MAX_PATH];
582 UINT ret;
583
584 TRACE("%u,%p\n", count, path);
585
586 if (!(ret = GetEnvironmentVariableW( tmp, tmp_path, MAX_PATH )) &&
587 !(ret = GetEnvironmentVariableW( temp, tmp_path, MAX_PATH )) &&
588 !(ret = GetEnvironmentVariableW( userprofile, tmp_path, MAX_PATH )) &&
589 !(ret = GetWindowsDirectoryW( tmp_path, MAX_PATH )))
590 return 0;
591
592 if (ret > MAX_PATH)
593 {
594 SetLastError(ERROR_FILENAME_EXCED_RANGE);
595 return 0;
596 }
597
598 ret = GetFullPathNameW(tmp_path, MAX_PATH, tmp_path, NULL);
599 if (!ret) return 0;
600
601 if (ret > MAX_PATH - 2)
602 {
603 SetLastError(ERROR_FILENAME_EXCED_RANGE);
604 return 0;
605 }
606
607 if (tmp_path[ret-1] != '\\')
608 {
609 tmp_path[ret++] = '\\';
610 tmp_path[ret] = '\0';
611 }
612
613 ret++; /* add space for terminating 0 */
614
615 if (count)
616 {
617 lstrcpynW(path, tmp_path, count);
618 if (count >= ret)
619 ret--; /* return length without 0 */
620 else if (count < 4)
621 path[0] = 0; /* avoid returning ambiguous "X:" */
622 }
623
624 TRACE("returning %u, %s\n", ret, debugstr_w(path));
625 return ret;
626 }
627
628
629 /***********************************************************************
630 * GetTempFileNameA (KERNEL32.@)
631 */
632 UINT WINAPI GetTempFileNameA( LPCSTR path, LPCSTR prefix, UINT unique, LPSTR buffer)
633 {
634 WCHAR *pathW, *prefixW = NULL;
635 WCHAR bufferW[MAX_PATH];
636 UINT ret;
637
638 if (!(pathW = FILE_name_AtoW( path, FALSE ))) return 0;
639 if (prefix && !(prefixW = FILE_name_AtoW( prefix, TRUE ))) return 0;
640
641 ret = GetTempFileNameW(pathW, prefixW, unique, bufferW);
642 if (ret) FILE_name_WtoA( bufferW, -1, buffer, MAX_PATH );
643
644 HeapFree( GetProcessHeap(), 0, prefixW );
645 return ret;
646 }
647
648 /***********************************************************************
649 * GetTempFileNameW (KERNEL32.@)
650 */
651 UINT WINAPI GetTempFileNameW( LPCWSTR path, LPCWSTR prefix, UINT unique, LPWSTR buffer )
652 {
653 static const WCHAR formatW[] = {'%','x','.','t','m','p',0};
654
655 int i;
656 LPWSTR p;
657
658 if ( !path || !buffer )
659 {
660 SetLastError( ERROR_INVALID_PARAMETER );
661 return 0;
662 }
663
664 strcpyW( buffer, path );
665 p = buffer + strlenW(buffer);
666
667 /* add a \, if there isn't one */
668 if ((p == buffer) || (p[-1] != '\\')) *p++ = '\\';
669
670 if (prefix)
671 for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
672
673 unique &= 0xffff;
674
675 if (unique) sprintfW( p, formatW, unique );
676 else
677 {
678 /* get a "random" unique number and try to create the file */
679 HANDLE handle;
680 UINT num = GetTickCount() & 0xffff;
681
682 if (!num) num = 1;
683 unique = num;
684 do
685 {
686 sprintfW( p, formatW, unique );
687 handle = CreateFileW( buffer, GENERIC_WRITE, 0, NULL,
688 CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
689 if (handle != INVALID_HANDLE_VALUE)
690 { /* We created it */
691 TRACE("created %s\n", debugstr_w(buffer) );
692 CloseHandle( handle );
693 break;
694 }
695 if (GetLastError() != ERROR_FILE_EXISTS &&
696 GetLastError() != ERROR_SHARING_VIOLATION)
697 break; /* No need to go on */
698 if (!(++unique & 0xffff)) unique = 1;
699 } while (unique != num);
700 }
701
702 TRACE("returning %s\n", debugstr_w(buffer) );
703 return unique;
704 }
705
706
707 /***********************************************************************
708 * contains_pathW
709 *
710 * Check if the file name contains a path; helper for SearchPathW.
711 * A relative path is not considered a path unless it starts with ./ or ../
712 */
713 static inline BOOL contains_pathW (LPCWSTR name)
714 {
715 if (RtlDetermineDosPathNameType_U( name ) != RELATIVE_PATH) return TRUE;
716 if (name[0] != '.') return FALSE;
717 if (name[1] == '/' || name[1] == '\\') return TRUE;
718 return (name[1] == '.' && (name[2] == '/' || name[2] == '\\'));
719 }
720
721
722 /***********************************************************************
723 * SearchPathW [KERNEL32.@]
724 *
725 * Searches for a specified file in the search path.
726 *
727 * PARAMS
728 * path [I] Path to search (NULL means default)
729 * name [I] Filename to search for.
730 * ext [I] File extension to append to file name. The first
731 * character must be a period. This parameter is
732 * specified only if the filename given does not
733 * contain an extension.
734 * buflen [I] size of buffer, in characters
735 * buffer [O] buffer for found filename
736 * lastpart [O] address of pointer to last used character in
737 * buffer (the final '\')
738 *
739 * RETURNS
740 * Success: length of string copied into buffer, not including
741 * terminating null character. If the filename found is
742 * longer than the length of the buffer, the length of the
743 * filename is returned.
744 * Failure: Zero
745 *
746 * NOTES
747 * If the file is not found, calls SetLastError(ERROR_FILE_NOT_FOUND)
748 * (tested on NT 4.0)
749 */
750 DWORD WINAPI SearchPathW( LPCWSTR path, LPCWSTR name, LPCWSTR ext, DWORD buflen,
751 LPWSTR buffer, LPWSTR *lastpart )
752 {
753 DWORD ret = 0;
754
755 /* If the name contains an explicit path, ignore the path */
756
757 if (contains_pathW(name))
758 {
759 /* try first without extension */
760 if (RtlDoesFileExists_U( name ))
761 return GetFullPathNameW( name, buflen, buffer, lastpart );
762
763 if (ext)
764 {
765 LPCWSTR p = strrchrW( name, '.' );
766 if (p && !strchrW( p, '/' ) && !strchrW( p, '\\' ))
767 ext = NULL; /* Ignore the specified extension */
768 }
769
770 /* Allocate a buffer for the file name and extension */
771 if (ext)
772 {
773 LPWSTR tmp;
774 DWORD len = strlenW(name) + strlenW(ext);
775
776 if (!(tmp = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) )))
777 {
778 SetLastError( ERROR_OUTOFMEMORY );
779 return 0;
780 }
781 strcpyW( tmp, name );
782 strcatW( tmp, ext );
783 if (RtlDoesFileExists_U( tmp ))
784 ret = GetFullPathNameW( tmp, buflen, buffer, lastpart );
785 HeapFree( GetProcessHeap(), 0, tmp );
786 }
787 }
788 else if (path && path[0]) /* search in the specified path */
789 {
790 ret = RtlDosSearchPath_U( path, name, ext, buflen * sizeof(WCHAR),
791 buffer, lastpart ) / sizeof(WCHAR);
792 }
793 else /* search in the default path */
794 {
795 WCHAR *dll_path = MODULE_get_dll_load_path( NULL );
796
797 if (dll_path)
798 {
799 ret = RtlDosSearchPath_U( dll_path, name, ext, buflen * sizeof(WCHAR),
800 buffer, lastpart ) / sizeof(WCHAR);
801 HeapFree( GetProcessHeap(), 0, dll_path );
802 }
803 else
804 {
805 SetLastError( ERROR_OUTOFMEMORY );
806 return 0;
807 }
808 }
809
810 if (!ret) SetLastError( ERROR_FILE_NOT_FOUND );
811 else TRACE( "found %s\n", debugstr_w(buffer) );
812 return ret;
813 }
814
815
816 /***********************************************************************
817 * SearchPathA (KERNEL32.@)
818 *
819 * See SearchPathW.
820 */
821 DWORD WINAPI SearchPathA( LPCSTR path, LPCSTR name, LPCSTR ext,
822 DWORD buflen, LPSTR buffer, LPSTR *lastpart )
823 {
824 WCHAR *pathW = NULL, *nameW = NULL, *extW = NULL;
825 WCHAR bufferW[MAX_PATH];
826 DWORD ret;
827
828 if (!name || !(nameW = FILE_name_AtoW( name, FALSE ))) return 0;
829 if (path && !(pathW = FILE_name_AtoW( path, TRUE ))) return 0;
830
831 if (ext && !(extW = FILE_name_AtoW( ext, TRUE )))
832 {
833 HeapFree( GetProcessHeap(), 0, pathW );
834 return 0;
835 }
836
837 ret = SearchPathW(pathW, nameW, extW, MAX_PATH, bufferW, NULL);
838
839 HeapFree( GetProcessHeap(), 0, pathW );
840 HeapFree( GetProcessHeap(), 0, extW );
841
842 if (!ret) return 0;
843 if (ret > MAX_PATH)
844 {
845 SetLastError(ERROR_FILENAME_EXCED_RANGE);
846 return 0;
847 }
848 ret = copy_filename_WtoA( bufferW, buffer, buflen );
849 if (buflen > ret && lastpart)
850 *lastpart = strrchr(buffer, '\\') + 1;
851 return ret;
852 }
853
854
855 /**************************************************************************
856 * CopyFileW (KERNEL32.@)
857 */
858 BOOL WINAPI CopyFileW( LPCWSTR source, LPCWSTR dest, BOOL fail_if_exists )
859 {
860 static const int buffer_size = 65536;
861 HANDLE h1, h2;
862 BY_HANDLE_FILE_INFORMATION info;
863 DWORD count;
864 BOOL ret = FALSE;
865 char *buffer;
866
867 if (!source || !dest)
868 {
869 SetLastError(ERROR_INVALID_PARAMETER);
870 return FALSE;
871 }
872 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, buffer_size )))
873 {
874 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
875 return FALSE;
876 }
877
878 TRACE("%s -> %s\n", debugstr_w(source), debugstr_w(dest));
879
880 if ((h1 = CreateFileW(source, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
881 NULL, OPEN_EXISTING, 0, 0)) == INVALID_HANDLE_VALUE)
882 {
883 WARN("Unable to open source %s\n", debugstr_w(source));
884 HeapFree( GetProcessHeap(), 0, buffer );
885 return FALSE;
886 }
887
888 if (!GetFileInformationByHandle( h1, &info ))
889 {
890 WARN("GetFileInformationByHandle returned error for %s\n", debugstr_w(source));
891 HeapFree( GetProcessHeap(), 0, buffer );
892 CloseHandle( h1 );
893 return FALSE;
894 }
895
896 if ((h2 = CreateFileW( dest, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
897 fail_if_exists ? CREATE_NEW : CREATE_ALWAYS,
898 info.dwFileAttributes, h1 )) == INVALID_HANDLE_VALUE)
899 {
900 WARN("Unable to open dest %s\n", debugstr_w(dest));
901 HeapFree( GetProcessHeap(), 0, buffer );
902 CloseHandle( h1 );
903 return FALSE;
904 }
905
906 while (ReadFile( h1, buffer, buffer_size, &count, NULL ) && count)
907 {
908 char *p = buffer;
909 while (count != 0)
910 {
911 DWORD res;
912 if (!WriteFile( h2, p, count, &res, NULL ) || !res) goto done;
913 p += res;
914 count -= res;
915 }
916 }
917 ret = TRUE;
918 done:
919 /* Maintain the timestamp of source file to destination file */
920 SetFileTime(h2, NULL, NULL, &info.ftLastWriteTime);
921 HeapFree( GetProcessHeap(), 0, buffer );
922 CloseHandle( h1 );
923 CloseHandle( h2 );
924 return ret;
925 }
926
927
928 /**************************************************************************
929 * CopyFileA (KERNEL32.@)
930 */
931 BOOL WINAPI CopyFileA( LPCSTR source, LPCSTR dest, BOOL fail_if_exists)
932 {
933 WCHAR *sourceW, *destW;
934 BOOL ret;
935
936 if (!(sourceW = FILE_name_AtoW( source, FALSE ))) return FALSE;
937 if (!(destW = FILE_name_AtoW( dest, TRUE ))) return FALSE;
938
939 ret = CopyFileW( sourceW, destW, fail_if_exists );
940
941 HeapFree( GetProcessHeap(), 0, destW );
942 return ret;
943 }
944
945
946 /**************************************************************************
947 * CopyFileExW (KERNEL32.@)
948 *
949 * This implementation ignores most of the extra parameters passed-in into
950 * the "ex" version of the method and calls the CopyFile method.
951 * It will have to be fixed eventually.
952 */
953 BOOL WINAPI CopyFileExW(LPCWSTR sourceFilename, LPCWSTR destFilename,
954 LPPROGRESS_ROUTINE progressRoutine, LPVOID appData,
955 LPBOOL cancelFlagPointer, DWORD copyFlags)
956 {
957 /*
958 * Interpret the only flag that CopyFile can interpret.
959 */
960 return CopyFileW(sourceFilename, destFilename, (copyFlags & COPY_FILE_FAIL_IF_EXISTS) != 0);
961 }
962
963
964 /**************************************************************************
965 * CopyFileExA (KERNEL32.@)