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push 149f0a5527ac85057a8ef03858d34d91c36f97e8
[wine/hacks.git] / dlls / kernel32 / format_msg.c
blobc312acddafb32305264f88f7199178fef9e1e84e
1 /*
2 * FormatMessage implementation
3 *
4 * Copyright 1996 Marcus Meissner
5 * Copyright 2009 Alexandre Julliard
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include "config.h"
23
24 #include <stdarg.h>
25 #include <stdio.h>
26 #include <string.h>
27
28 #include "ntstatus.h"
29 #define WIN32_NO_STATUS
30 #include "windef.h"
31 #include "winbase.h"
32 #include "winerror.h"
33 #include "winternl.h"
34 #include "winuser.h"
35 #include "winnls.h"
36 #include "wine/unicode.h"
37 #include "kernel_private.h"
38 #include "wine/debug.h"
39
40 WINE_DEFAULT_DEBUG_CHANNEL(resource);
41
42 struct format_args
43 {
44 ULONG_PTR *args;
45 __ms_va_list *list;
46 int last;
47 };
48
49 /* Messages used by FormatMessage
50 *
51 * They can be specified either directly or using a message ID and
52 * loading them from the resource.
53 *
54 * The resourcedata has following format:
55 * start:
56 * 0: DWORD nrofentries
57 * nrofentries * subentry:
58 * 0: DWORD firstentry
59 * 4: DWORD lastentry
60 * 8: DWORD offset from start to the stringentries
61 *
62 * (lastentry-firstentry) * stringentry:
63 * 0: WORD len (0 marks end) [ includes the 4 byte header length ]
64 * 2: WORD flags
65 * 4: CHAR[len-4]
66 * (stringentry i of a subentry refers to the ID 'firstentry+i')
67 *
68 * Yes, ANSI strings in win32 resources. Go figure.
69 */
70
71 static const WCHAR PCNTFMTWSTR[] = { '%','%','%','s',0 };
72 static const WCHAR FMTWSTR[] = { '%','s',0 };
73
74 /**********************************************************************
75 * load_messageW (internal)
76 */
77 static LPWSTR load_messageW( HMODULE module, UINT id, WORD lang )
78 {
79 const MESSAGE_RESOURCE_ENTRY *mre;
80 WCHAR *buffer;
81 NTSTATUS status;
82
83 TRACE("module = %p, id = %08x\n", module, id );
84
85 if (!module) module = GetModuleHandleW( NULL );
86 if ((status = RtlFindMessage( module, RT_MESSAGETABLE, lang, id, &mre )) != STATUS_SUCCESS)
87 {
88 SetLastError( RtlNtStatusToDosError(status) );
89 return NULL;
90 }
91
92 if (mre->Flags & MESSAGE_RESOURCE_UNICODE)
93 {
94 int len = (strlenW( (const WCHAR *)mre->Text ) + 1) * sizeof(WCHAR);
95 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len ))) return NULL;
96 memcpy( buffer, mre->Text, len );
97 }
98 else
99 {
100 int len = MultiByteToWideChar( CP_ACP, 0, (const char *)mre->Text, -1, NULL, 0 );
101 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return NULL;
102 MultiByteToWideChar( CP_ACP, 0, (const char*)mre->Text, -1, buffer, len );
103 }
104 TRACE("returning %s\n", wine_dbgstr_w(buffer));
105 return buffer;
106 }
107
108
109 /**********************************************************************
110 * load_messageA (internal)
111 */
112 static LPSTR load_messageA( HMODULE module, UINT id, WORD lang )
113 {
114 const MESSAGE_RESOURCE_ENTRY *mre;
115 char *buffer;
116 NTSTATUS status;
117
118 TRACE("module = %p, id = %08x\n", module, id );
119
120 if (!module) module = GetModuleHandleW( NULL );
121 if ((status = RtlFindMessage( module, RT_MESSAGETABLE, lang, id, &mre )) != STATUS_SUCCESS)
122 {
123 SetLastError( RtlNtStatusToDosError(status) );
124 return NULL;
125 }
126
127 if (mre->Flags & MESSAGE_RESOURCE_UNICODE)
128 {
129 int len = WideCharToMultiByte( CP_ACP, 0, (const WCHAR *)mre->Text, -1, NULL, 0, NULL, NULL );
130 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len ))) return NULL;
131 WideCharToMultiByte( CP_ACP, 0, (const WCHAR *)mre->Text, -1, buffer, len, NULL, NULL );
132 }
133 else
134 {
135 int len = strlen((const char*)mre->Text) + 1;
136 if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len ))) return NULL;
137 memcpy( buffer, mre->Text, len );
138 }
139 TRACE("returning %s\n", wine_dbgstr_a(buffer));
140 return buffer;
141 }
142
143
144 /**********************************************************************
145 * get_arg (internal)
146 */
147 static ULONG_PTR get_arg( int nr, DWORD flags, struct format_args *args )
148 {
149 if (nr == -1) nr = args->last + 1;
150 if (args->list)
151 {
152 if (!args->args) args->args = HeapAlloc( GetProcessHeap(), 0, 99 * sizeof(ULONG_PTR) );
153 while (nr > args->last)
154 args->args[args->last++] = va_arg( *args->list, ULONG_PTR );
155 }
156 if (nr > args->last) args->last = nr;
157 return args->args[nr - 1];
158 }
159
160
161 /**********************************************************************
162 * format_insertA (internal)
163 */
164 static LPCSTR format_insertA( int insert, LPCSTR format, DWORD flags,
165 struct format_args *args, LPSTR *result )
166 {
167 char *astring = NULL, *p, fmt[256];
168 ULONG_PTR arg;
169 int size;
170
171 if (*format != '!') /* simple string */
172 {
173 char *str = (char *)get_arg( insert, flags, args );
174 *result = HeapAlloc( GetProcessHeap(), 0, strlen(str) + 1 );
175 strcpy( *result, str );
176 return format;
177 }
178
179 format++;
180 p = fmt;
181 *p++ = '%';
182
183 while (*format == '0' ||
184 *format == '+' ||
185 *format == '-' ||
186 *format == ' ' ||
187 *format == '*' ||
188 *format == '#')
189 {
190 if (*format == '*')
191 {
192 p += sprintf( p, "%lu", get_arg( insert, flags, args ));
193 insert = -1;
194 format++;
195 }
196 else *p++ = *format++;
197 }
198 while (isdigit(*format)) *p++ = *format++;
199
200 if (*format == '.')
201 {
202 *p++ = *format++;
203 if (*format == '*')
204 {
205 p += sprintf( p, "%lu", get_arg( insert, flags, args ));
206 insert = -1;
207 format++;
208 }
209 else
210 while (isdigit(*format)) *p++ = *format++;
211 }
212
213 /* replicate MS bug: drop an argument when using va_list with width/precision */
214 if (insert == -1 && args->list) args->last--;
215 arg = get_arg( insert, flags, args );
216
217 /* check for wide string format */
218 if ((format[0] == 'l' && format[1] == 's') ||
219 (format[0] == 'l' && format[1] == 'S') ||
220 (format[0] == 'w' && format[1] == 's') ||
221 (format[0] == 'S'))
222 {
223 DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)arg, -1, /*FIXME*/
224 NULL, 0, NULL, NULL );
225 astring = HeapAlloc( GetProcessHeap(), 0, len );
226 WideCharToMultiByte( CP_ACP, 0, (WCHAR *)arg, -1, astring, len, NULL, NULL );
227 arg = (ULONG_PTR)astring;
228 *p++ = 's';
229 }
230 /* check for wide character format */
231 else if ((format[0] == 'l' && format[1] == 'c') ||
232 (format[0] == 'l' && format[1] == 'C') ||
233 (format[0] == 'w' && format[1] == 'c') ||
234 (format[0] == 'C'))
235 {
236 WCHAR ch = arg;
237 DWORD len = WideCharToMultiByte( CP_ACP, 0, &ch, 1, NULL, 0, NULL, NULL );
238 astring = HeapAlloc( GetProcessHeap(), 0, len + 1 );
239 WideCharToMultiByte( CP_ACP, 0, &ch, 1, astring, len, NULL, NULL );
240 astring[len] = 0;
241 arg = (ULONG_PTR)astring;
242 *p++ = 's';
243 }
244 /* check for ascii string format */
245 else if ((format[0] == 'h' && format[1] == 's') ||
246 (format[0] == 'h' && format[1] == 'S'))
247 {
248 *p++ = 's';
249 }
250 /* check for ascii character format */
251 else if ((format[0] == 'h' && format[1] == 'c') ||
252 (format[0] == 'h' && format[1] == 'C'))
253 {
254 *p++ = 'c';
255 }
256 /* FIXME: handle I64 etc. */
257 else while (*format && *format != '!') *p++ = *format++;
258
259 *p = 0;
260 size = 256;
261 for (;;)
262 {
263 char *ret = HeapAlloc( GetProcessHeap(), 0, size );
264 int needed = snprintf( ret, size, fmt, arg );
265 if (needed == -1 || needed >= size)
266 {
267 HeapFree( GetProcessHeap(), 0, ret );
268 size = max( needed + 1, size * 2 );
269 }
270 else
271 {
272 *result = ret;
273 break;
274 }
275 }
276
277 while (*format && *format != '!') format++;
278 if (*format == '!') format++;
279
280 HeapFree( GetProcessHeap(), 0, astring );
281 return format;
282 }
283
284
285 /**********************************************************************
286 * format_insertW (internal)
287 */
288 static LPCWSTR format_insertW( int insert, LPCWSTR format, DWORD flags,
289 struct format_args *args, LPWSTR *result )
290 {
291 static const WCHAR fmt_lu[] = {'%','l','u',0};
292 WCHAR *wstring = NULL, *p, fmt[256];
293 ULONG_PTR arg;
294 int size;
295
296 if (*format != '!') /* simple string */
297 {
298 WCHAR *str = (WCHAR *)get_arg( insert, flags, args );
299 *result = HeapAlloc( GetProcessHeap(), 0, (strlenW(str) + 1) * sizeof(WCHAR) );
300 strcpyW( *result, str );
301 return format;
302 }
303
304 format++;
305 p = fmt;
306 *p++ = '%';
307
308 while (*format == '0' ||
309 *format == '+' ||
310 *format == '-' ||
311 *format == ' ' ||
312 *format == '*' ||
313 *format == '#')
314 {
315 if (*format == '*')
316 {
317 p += sprintfW( p, fmt_lu, get_arg( insert, flags, args ));
318 insert = -1;
319 format++;
320 }
321 else *p++ = *format++;
322 }
323 while (isdigitW(*format)) *p++ = *format++;
324
325 if (*format == '.')
326 {
327 *p++ = *format++;
328 if (*format == '*')
329 {
330 p += sprintfW( p, fmt_lu, get_arg( insert, flags, args ));
331 insert = -1;
332 format++;
333 }
334 else
335 while (isdigitW(*format)) *p++ = *format++;
336 }
337
338 /* replicate MS bug: drop an argument when using va_list with width/precision */
339 if (insert == -1 && args->list) args->last--;
340 arg = get_arg( insert, flags, args );
341
342 /* check for ascii string format */
343 if ((format[0] == 'h' && format[1] == 's') ||
344 (format[0] == 'h' && format[1] == 'S') ||
345 (format[0] == 'S'))
346 {
347 DWORD len = MultiByteToWideChar( CP_ACP, 0, (char *)arg, -1, /*FIXME*/ NULL, 0 );
348 wstring = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
349 MultiByteToWideChar( CP_ACP, 0, (char *)arg, -1, wstring, len );
350 arg = (ULONG_PTR)wstring;
351 *p++ = 's';
352 }
353 /* check for ascii character format */
354 else if ((format[0] == 'h' && format[1] == 'c') ||
355 (format[0] == 'h' && format[1] == 'C') ||
356 (format[0] == 'C'))
357 {
358 char ch = arg;
359 wstring = HeapAlloc( GetProcessHeap(), 0, 2 * sizeof(WCHAR) );
360 MultiByteToWideChar( CP_ACP, 0, &ch, 1, wstring, 1 );
361 wstring[1] = 0;
362 arg = (ULONG_PTR)wstring;
363 *p++ = 's';
364 }
365 /* check for wide string format */
366 else if ((format[0] == 'l' && format[1] == 's') ||
367 (format[0] == 'l' && format[1] == 'S') ||
368 (format[0] == 'w' && format[1] == 's'))
369 {
370 *p++ = 's';
371 }
372 /* check for wide character format */
373 else if ((format[0] == 'l' && format[1] == 'c') ||
374 (format[0] == 'l' && format[1] == 'C') ||
375 (format[0] == 'w' && format[1] == 'c'))
376 {
377 *p++ = 'c';
378 }
379 /* FIXME: handle I64 etc. */
380 else while (*format && *format != '!') *p++ = *format++;
381
382 *p = 0;
383 size = 256;
384 for (;;)
385 {
386 WCHAR *ret = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) );
387 int needed = snprintfW( ret, size, fmt, arg );
388 if (needed == -1 || needed >= size)
389 {
390 HeapFree( GetProcessHeap(), 0, ret );
391 size = max( needed + 1, size * 2 );
392 }
393 else
394 {
395 *result = ret;
396 break;
397 }
398 }
399
400 while (*format && *format != '!') format++;
401 if (*format == '!') format++;
402
403 HeapFree( GetProcessHeap(), 0, wstring );
404 return format;
405 }
406
407
408 /***********************************************************************
409 * FormatMessageA (KERNEL32.@)
410 * FIXME: missing wrap,
411 */
412 DWORD WINAPI FormatMessageA(
413 DWORD dwFlags,
414 LPCVOID lpSource,
415 DWORD dwMessageId,
416 DWORD dwLanguageId,
417 LPSTR lpBuffer,
418 DWORD nSize,
419 __ms_va_list* args )
420 {
421 struct format_args format_args;
422 DWORD ret = 0;
423 LPSTR target,t;
424 DWORD talloced;
425 LPSTR from;
426 LPCSTR f;
427 DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
428 BOOL eos = FALSE;
429 CHAR ch;
430
431 TRACE("(0x%x,%p,%d,0x%x,%p,%d,%p)\n",
432 dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
433 if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
434 &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
435 || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
436
437 if (!lpBuffer)
438 {
439 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
440 return 0;
441 }
442
443 if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
444 {
445 format_args.args = (ULONG_PTR *)args;
446 format_args.list = NULL;
447 format_args.last = 0;
448 }
449 else
450 {
451 format_args.args = NULL;
452 format_args.list = args;
453 format_args.last = 0;
454 }
455
456 if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
457 FIXME("line wrapping (%u) not supported.\n", width);
458 from = NULL;
459 if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
460 {
461 from = HeapAlloc( GetProcessHeap(), 0, strlen(lpSource) + 1 );
462 strcpy( from, lpSource );
463 }
464 else {
465 from = NULL;
466 if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)
467 from = load_messageA( (HMODULE)lpSource, dwMessageId, dwLanguageId );
468 if (!from && (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM))
469 from = load_messageA( kernel32_handle, dwMessageId, dwLanguageId );
470 if (!from) return 0;
471 }
472 target = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
473 t = target;
474 talloced= 100;
475
476 #define ADD_TO_T(c) do { \
477 *t++=c;\
478 if ((DWORD)(t-target) == talloced) {\
479 target = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
480 t = target+talloced;\
481 talloced*=2;\
482 }\
483 } while (0)
484
485 if (from) {
486 f=from;
487 if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
488 while (*f && !eos)
489 ADD_TO_T(*f++);
490 }
491 else {
492 while (*f && !eos) {
493 if (*f=='%') {
494 int insertnr;
495 char *str,*x;
496
497 f++;
498 if (!*f) {
499 ADD_TO_T('%');
500 continue;
501 }
502 switch (*f) {
503 case '1':case '2':case '3':case '4':case '5':
504 case '6':case '7':case '8':case '9':
505 insertnr=*f-'0';
506 switch (f[1]) {
507 case '0':case '1':case '2':case '3':
508 case '4':case '5':case '6':case '7':
509 case '8':case '9':
510 f++;
511 insertnr=insertnr*10+*f-'0';
512 f++;
513 break;
514 default:
515 f++;
516 break;
517 }
518 f = format_insertA( insertnr, f, dwFlags, &format_args, &str );
519 for (x = str; *x; x++) ADD_TO_T(*x);
520 HeapFree( GetProcessHeap(), 0, str );
521 break;
522 case 'n':
523 ADD_TO_T('\r');
524 ADD_TO_T('\n');
525 f++;
526 break;
527 case '0':
528 eos = TRUE;
529 f++;
530 break;
531 default:
532 ADD_TO_T(*f++);
533 break;
534 }
535 } else {
536 ch = *f;
537 f++;
538 if (ch == '\r') {
539 if (*f == '\n')
540 f++;
541 if(width)
542 ADD_TO_T(' ');
543 else
544 {
545 ADD_TO_T('\r');
546 ADD_TO_T('\n');
547 }
548 } else {
549 if (ch == '\n')
550 {
551 if(width)
552 ADD_TO_T(' ');
553 else
554 {
555 ADD_TO_T('\r');
556 ADD_TO_T('\n');
557 }
558 }
559 else
560 ADD_TO_T(ch);
561 }
562 }
563 }
564 }
565 *t='\0';
566 }
567 talloced = strlen(target)+1;
568 if (nSize && talloced<nSize) {
569 target = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
570 }
571 TRACE("-- %s\n",debugstr_a(target));
572 if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
573 *((LPVOID*)lpBuffer) = LocalAlloc(LMEM_ZEROINIT,max(nSize, talloced));
574 memcpy(*(LPSTR*)lpBuffer,target,talloced);
575 } else {
576 lstrcpynA(lpBuffer,target,nSize);
577 }
578 HeapFree(GetProcessHeap(),0,target);
579 HeapFree(GetProcessHeap(),0,from);
580 if (!(dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)) HeapFree( GetProcessHeap(), 0, format_args.args );
581 ret = (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ? strlen(*(LPSTR*)lpBuffer) : strlen(lpBuffer);
582 TRACE("-- returning %d\n", ret);
583 return ret;
584 }
585 #undef ADD_TO_T
586
587
588 /***********************************************************************
589 * FormatMessageW (KERNEL32.@)
590 */
591 DWORD WINAPI FormatMessageW(
592 DWORD dwFlags,
593 LPCVOID lpSource,
594 DWORD dwMessageId,
595 DWORD dwLanguageId,
596 LPWSTR lpBuffer,
597 DWORD nSize,
598 __ms_va_list* args )
599 {
600 struct format_args format_args;
601 LPWSTR target,t;
602 DWORD talloced;
603 LPWSTR from;
604 LPCWSTR f;
605 DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
606 BOOL eos = FALSE;
607 WCHAR ch;
608
609 TRACE("(0x%x,%p,%d,0x%x,%p,%d,%p)\n",
610 dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
611 if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
612 &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
613 || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
614
615 if (!lpBuffer)
616 {
617 SetLastError(ERROR_INVALID_PARAMETER);
618 return 0;
619 }
620
621 if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
622 {
623 format_args.args = (ULONG_PTR *)args;
624 format_args.list = NULL;
625 format_args.last = 0;
626 }
627 else
628 {
629 format_args.args = NULL;
630 format_args.list = args;
631 format_args.last = 0;
632 }
633
634 if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
635 FIXME("line wrapping not supported.\n");
636 from = NULL;
637 if (dwFlags & FORMAT_MESSAGE_FROM_STRING) {
638 from = HeapAlloc( GetProcessHeap(), 0, (strlenW(lpSource) + 1) *
639 sizeof(WCHAR) );
640 strcpyW( from, lpSource );
641 }
642 else {
643 from = NULL;
644 if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)
645 from = load_messageW( (HMODULE)lpSource, dwMessageId, dwLanguageId );
646 if (!from && (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM))
647 from = load_messageW( kernel32_handle, dwMessageId, dwLanguageId );
648 if (!from) return 0;
649 }
650 target = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100 * sizeof(WCHAR) );
651 t = target;
652 talloced= 100;
653
654 #define ADD_TO_T(c) do {\
655 *t++=c;\
656 if ((DWORD)(t-target) == talloced) {\
657 target = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2*sizeof(WCHAR));\
658 t = target+talloced;\
659 talloced*=2;\
660 } \
661 } while (0)
662
663 if (from) {
664 f=from;
665 if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
666 while (*f && !eos)
667 ADD_TO_T(*f++);
668 }
669 else {
670 while (*f && !eos) {
671 if (*f=='%') {
672 int insertnr;
673 WCHAR *str,*x;
674
675 f++;
676 if (!*f) {
677 ADD_TO_T('%');
678 continue;
679 }
680
681 switch (*f) {
682 case '1':case '2':case '3':case '4':case '5':
683 case '6':case '7':case '8':case '9':
684 insertnr=*f-'0';
685 switch (f[1]) {
686 case '0':case '1':case '2':case '3':
687 case '4':case '5':case '6':case '7':
688 case '8':case '9':
689 f++;
690 insertnr=insertnr*10+*f-'0';
691 f++;
692 break;
693 default:
694 f++;
695 break;
696 }
697 f = format_insertW( insertnr, f, dwFlags, &format_args, &str );
698 for (x = str; *x; x++) ADD_TO_T(*x);
699 HeapFree( GetProcessHeap(), 0, str );
700 break;
701 case 'n':
702 ADD_TO_T('\r');
703 ADD_TO_T('\n');
704 f++;
705 break;
706 case '0':
707 eos = TRUE;
708 f++;
709 break;
710 default:
711 ADD_TO_T(*f++);
712 break;
713 }
714 } else {
715 ch = *f;
716 f++;
717 if (ch == '\r') {
718 if (*f == '\n')
719 f++;
720 if(width)
721 ADD_TO_T(' ');
722 else
723 {
724 ADD_TO_T('\r');
725 ADD_TO_T('\n');
726 }
727 } else {
728 if (ch == '\n')
729 {
730 if(width)
731 ADD_TO_T(' ');
732 else
733 {
734 ADD_TO_T('\r');
735 ADD_TO_T('\n');
736 }
737 }
738 else
739 ADD_TO_T(ch);
740 }
741 }
742 }
743 }
744 *t='\0';
745 }
746 talloced = strlenW(target)+1;
747 if (nSize && talloced<nSize)
748 target = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize*sizeof(WCHAR));
749 if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
750 /* nSize is the MINIMUM size */
751 DWORD len = strlenW(target) + 1;
752 *((LPVOID*)lpBuffer) = LocalAlloc(LMEM_ZEROINIT,len*sizeof(WCHAR));
753 strcpyW(*(LPWSTR*)lpBuffer, target);
754 }
755 else lstrcpynW(lpBuffer, target, nSize);
756
757 HeapFree(GetProcessHeap(),0,target);
758 HeapFree(GetProcessHeap(),0,from);
759 if (!(dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)) HeapFree( GetProcessHeap(), 0, format_args.args );
760 TRACE("ret=%s\n", wine_dbgstr_w((dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
761 *(LPWSTR*)lpBuffer : lpBuffer));
762 return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
763 strlenW(*(LPWSTR*)lpBuffer):
764 strlenW(lpBuffer);
765 }
766 #undef ADD_TO_T
useful hacks and other patches not (yet) suitable for mainline