summaryrefslogtreecommitdiff
path: root/pidgin/win32/winpidgin.c
blob: c0186c32cfe08e4463501fc839621a798156b376 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
/*
 *  winpidgin.c
 *
 *  Date: June, 2002
 *  Description: Entry point for win32 pidgin, and various win32 dependant
 *  routines.
 *
 * Pidgin is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * 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  02111-1301  USA
 *
 */

/* This is for ATTACH_PARENT_PROCESS */
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x501
#endif
#include <windows.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "config.h"

typedef int (CALLBACK* LPFNPIDGINMAIN)(HINSTANCE, int, char**);
typedef void (CALLBACK* LPFNSETDLLDIRECTORY)(LPCWSTR);
typedef BOOL (CALLBACK* LPFNATTACHCONSOLE)(DWORD);

static BOOL portable_mode = FALSE;

/*
 *  PROTOTYPES
 */
static LPFNPIDGINMAIN pidgin_main = NULL;
static LPFNSETDLLDIRECTORY MySetDllDirectory = NULL;

static const wchar_t *get_win32_error_message(DWORD err) {
	static wchar_t err_msg[512];

	FormatMessageW(
		FORMAT_MESSAGE_FROM_SYSTEM,
		NULL, err,
		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
		(LPWSTR) &err_msg, sizeof(err_msg) / sizeof(wchar_t), NULL);

	return err_msg;
}

static BOOL read_reg_string(HKEY key, wchar_t *sub_key, wchar_t *val_name, LPBYTE data, LPDWORD data_len) {
	HKEY hkey;
	BOOL ret = FALSE;
	LONG retv;

	if (ERROR_SUCCESS == (retv = RegOpenKeyExW(key, sub_key, 0,
					KEY_QUERY_VALUE, &hkey))) {
		if (ERROR_SUCCESS == (retv = RegQueryValueExW(hkey, val_name,
						NULL, NULL, data, data_len)))
			ret = TRUE;
		else {
			const wchar_t *err_msg = get_win32_error_message(retv);

			wprintf(L"Could not read reg key '%s' subkey '%s' value: '%s'.\nMessage: (%ld) %s\n",
					(key == HKEY_LOCAL_MACHINE) ? L"HKLM"
					 : ((key == HKEY_CURRENT_USER) ? L"HKCU" : L"???"),
					sub_key, val_name, retv, err_msg);
		}
		RegCloseKey(hkey);
	}
	else {
		wchar_t szBuf[80];

		FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM, NULL, retv, 0,
				(LPWSTR) &szBuf, sizeof(szBuf) / sizeof(wchar_t), NULL);
		wprintf(L"Could not open reg subkey: %s\nError: (%ld) %s\n",
				sub_key, retv, szBuf);
	}

	return ret;
}

static BOOL common_dll_prep(const wchar_t *path) {
	HMODULE hmod;
	HKEY hkey;
	struct _stat stat_buf;
	wchar_t test_path[MAX_PATH + 1];

	_snwprintf(test_path, sizeof(test_path) / sizeof(wchar_t),
		L"%s\\libgtk-win32-2.0-0.dll", path);
	test_path[sizeof(test_path) / sizeof(wchar_t) - 1] = L'\0';

	if (_wstat(test_path, &stat_buf) != 0) {
		printf("Unable to determine GTK+ path. \n"
			"Assuming GTK+ is in the PATH.\n");
		return FALSE;
	}


	wprintf(L"GTK+ path found: %s\n", path);

	if ((hmod = GetModuleHandleW(L"kernel32.dll"))) {
		MySetDllDirectory = (LPFNSETDLLDIRECTORY) GetProcAddress(
			hmod, "SetDllDirectoryW");
		if (!MySetDllDirectory)
			printf("SetDllDirectory not supported\n");
	} else
		printf("Error getting kernel32.dll module handle\n");

	/* For Windows XP SP1+ / Server 2003 we use SetDllDirectory to avoid dll hell */
	if (MySetDllDirectory) {
		printf("Using SetDllDirectory\n");
		MySetDllDirectory(path);
	}

	/* For the rest, we set the current directory and make sure
	 * SafeDllSearch is set to 0 where needed. */
	else {
		OSVERSIONINFOW osinfo;

		printf("Setting current directory to GTK+ dll directory\n");
		SetCurrentDirectoryW(path);
		/* For Windows 2000 (SP3+) / WinXP (No SP):
		 * If SafeDllSearchMode is set to 1, Windows system directories are
		 * searched for dlls before the current directory. Therefore we set it
		 * to 0.
		 */
		osinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
		GetVersionExW(&osinfo);
		if ((osinfo.dwMajorVersion == 5
				&& osinfo.dwMinorVersion == 0
				&& wcscmp(osinfo.szCSDVersion, L"Service Pack 3") >= 0)
			||
			(osinfo.dwMajorVersion == 5
				&& osinfo.dwMinorVersion == 1
				&& wcscmp(osinfo.szCSDVersion, L"") >= 0)
		) {
			DWORD regval = 1;
			DWORD reglen = sizeof(DWORD);

			printf("Using Win2k (SP3+) / WinXP (No SP)... Checking SafeDllSearch\n");
			read_reg_string(HKEY_LOCAL_MACHINE,
				L"System\\CurrentControlSet\\Control\\Session Manager",
				L"SafeDllSearchMode",
				(LPBYTE) &regval,
				&reglen);

			if (regval != 0) {
				printf("Trying to set SafeDllSearchMode to 0\n");
				regval = 0;
				if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
					L"System\\CurrentControlSet\\Control\\Session Manager",
					0,  KEY_SET_VALUE, &hkey
				) == ERROR_SUCCESS) {
					if (RegSetValueExW(hkey,
						L"SafeDllSearchMode", 0,
						REG_DWORD, (LPBYTE) &regval,
						sizeof(DWORD)
					) != ERROR_SUCCESS)
						printf("Error writing SafeDllSearchMode. Error: %u\n",
							(UINT) GetLastError());
					RegCloseKey(hkey);
				} else
					printf("Error opening Session Manager key for writing. Error: %u\n",
						(UINT) GetLastError());
			} else
				printf("SafeDllSearchMode is set to 0\n");
		}/*end else*/
	}

	return TRUE;
}

static BOOL dll_prep(const wchar_t *pidgin_dir) {
	wchar_t path[MAX_PATH + 1];
	path[0] = L'\0';

	if (*pidgin_dir) {
		_snwprintf(path, sizeof(path) / sizeof(wchar_t), L"%s\\Gtk\\bin", pidgin_dir);
		path[sizeof(path) / sizeof(wchar_t) - 1] = L'\0';
	}

	return common_dll_prep(path);
}

static void portable_mode_dll_prep(const wchar_t *pidgin_dir) {
	/* need to be able to fit MAX_PATH + "PURPLEHOME=" in path2 */
	wchar_t path[MAX_PATH + 1];
	wchar_t path2[MAX_PATH + 12];
	const wchar_t *prev = NULL;

	/* We assume that GTK+ is installed under \\path\to\Pidgin\..\GTK
	 * First we find \\path\to
	 */
	if (*pidgin_dir)
		/* pidgin_dir points to \\path\to\Pidgin */
		prev = wcsrchr(pidgin_dir, L'\\');

	if (prev) {
		int cnt = (prev - pidgin_dir);
		wcsncpy(path, pidgin_dir, cnt);
		path[cnt] = L'\0';
	} else {
		printf("Unable to determine current executable path. \n"
			"This will prevent the settings dir from being set.\n"
			"Assuming GTK+ is in the PATH.\n");
		return;
	}

	/* Set $HOME so that the GTK+ settings get stored in the right place */
	_snwprintf(path2, sizeof(path2) / sizeof(wchar_t), L"HOME=%s", path);
	_wputenv(path2);

	/* Set up the settings dir base to be \\path\to
	 * The actual settings dir will be \\path\to\.purple */
	_snwprintf(path2, sizeof(path2) / sizeof(wchar_t), L"PURPLEHOME=%s", path);
	wprintf(L"Setting settings dir: %s\n", path2);
	_wputenv(path2);

	if (!dll_prep(pidgin_dir)) {
		/* set the GTK+ path to be \\path\to\GTK\bin */
		wcscat(path, L"\\GTK\\bin");
		common_dll_prep(path);
	}
}

static wchar_t* winpidgin_lcid_to_posix(LCID lcid) {
	wchar_t *posix = NULL;
	int lang_id = PRIMARYLANGID(lcid);
	int sub_id = SUBLANGID(lcid);

	switch (lang_id) {
		case LANG_AFRIKAANS: posix = L"af"; break;
		case LANG_ARABIC: posix = L"ar"; break;
		case LANG_AZERI: posix = L"az"; break;
		case LANG_BENGALI: posix = L"bn"; break;
		case LANG_BULGARIAN: posix = L"bg"; break;
		case LANG_CATALAN: posix = L"ca"; break;
		case LANG_CZECH: posix = L"cs"; break;
		case LANG_DANISH: posix = L"da"; break;
		case LANG_ESTONIAN: posix = L"et"; break;
		case LANG_PERSIAN: posix = L"fa"; break;
		case LANG_GERMAN: posix = L"de"; break;
		case LANG_GREEK: posix = L"el"; break;
		case LANG_ENGLISH:
			switch (sub_id) {
				case SUBLANG_ENGLISH_UK:
					posix = L"en_GB"; break;
				case SUBLANG_ENGLISH_AUS:
					posix = L"en_AU"; break;
				case SUBLANG_ENGLISH_CAN:
					posix = L"en_CA"; break;
				default:
					posix = L"en"; break;
			}
			break;
		case LANG_SPANISH: posix = L"es"; break;
		case LANG_BASQUE: posix = L"eu"; break;
		case LANG_FINNISH: posix = L"fi"; break;
		case LANG_FRENCH: posix = L"fr"; break;
		case LANG_GALICIAN: posix = L"gl"; break;
		case LANG_GUJARATI: posix = L"gu"; break;
		case LANG_HEBREW: posix = L"he"; break;
		case LANG_HINDI: posix = L"hi"; break;
		case LANG_HUNGARIAN: posix = L"hu"; break;
		case LANG_ICELANDIC: break;
		case LANG_INDONESIAN: posix = L"id"; break;
		case LANG_ITALIAN: posix = L"it"; break;
		case LANG_JAPANESE: posix = L"ja"; break;
		case LANG_GEORGIAN: posix = L"ka"; break;
		case LANG_KANNADA: posix = L"kn"; break;
		case LANG_KOREAN: posix = L"ko"; break;
		case LANG_LITHUANIAN: posix = L"lt"; break;
		case LANG_MACEDONIAN: posix = L"mk"; break;
		case LANG_DUTCH: posix = L"nl"; break;
		case LANG_NEPALI: posix = L"ne"; break;
		case LANG_NORWEGIAN:
			switch (sub_id) {
				case SUBLANG_NORWEGIAN_BOKMAL:
					posix = L"nb"; break;
				case SUBLANG_NORWEGIAN_NYNORSK:
					posix = L"nn"; break;
			}
			break;
		case LANG_PUNJABI: posix = L"pa"; break;
		case LANG_POLISH: posix = L"pl"; break;
		case LANG_PASHTO: posix = L"ps"; break;
		case LANG_PORTUGUESE:
			switch (sub_id) {
				case SUBLANG_PORTUGUESE_BRAZILIAN:
					posix = L"pt_BR"; break;
				default:
				posix = L"pt"; break;
			}
			break;
		case LANG_ROMANIAN: posix = L"ro"; break;
		case LANG_RUSSIAN: posix = L"ru"; break;
		case LANG_SLOVAK: posix = L"sk"; break;
		case LANG_SLOVENIAN: posix = L"sl"; break;
		case LANG_ALBANIAN: posix = L"sq"; break;
		/* LANG_CROATIAN == LANG_SERBIAN == LANG_BOSNIAN */
		case LANG_SERBIAN:
			switch (sub_id) {
				case SUBLANG_SERBIAN_LATIN:
					posix = L"sr@Latn"; break;
				case SUBLANG_SERBIAN_CYRILLIC:
					posix = L"sr"; break;
				case SUBLANG_BOSNIAN_BOSNIA_HERZEGOVINA_CYRILLIC:
				case SUBLANG_BOSNIAN_BOSNIA_HERZEGOVINA_LATIN:
					posix = L"bs"; break;
				case SUBLANG_CROATIAN_BOSNIA_HERZEGOVINA_LATIN:
					posix = L"hr"; break;
			}
			break;
		case LANG_SWEDISH: posix = L"sv"; break;
		case LANG_TAMIL: posix = L"ta"; break;
		case LANG_TELUGU: posix = L"te"; break;
		case LANG_THAI: posix = L"th"; break;
		case LANG_TURKISH: posix = L"tr"; break;
		case LANG_UKRAINIAN: posix = L"uk"; break;
		case LANG_VIETNAMESE: posix = L"vi"; break;
		case LANG_XHOSA: posix = L"xh"; break;
		case LANG_CHINESE:
			switch (sub_id) {
				case SUBLANG_CHINESE_SIMPLIFIED:
					posix = L"zh_CN"; break;
				case SUBLANG_CHINESE_TRADITIONAL:
					posix = L"zh_TW"; break;
				default:
					posix = L"zh"; break;
			}
			break;
		case LANG_URDU: break;
		case LANG_BELARUSIAN: break;
		case LANG_LATVIAN: break;
		case LANG_ARMENIAN: break;
		case LANG_FAEROESE: break;
		case LANG_MALAY: break;
		case LANG_KAZAK: break;
		case LANG_KYRGYZ: break;
		case LANG_SWAHILI: break;
		case LANG_UZBEK: break;
		case LANG_TATAR: break;
		case LANG_ORIYA: break;
		case LANG_MALAYALAM: break;
		case LANG_ASSAMESE: break;
		case LANG_MARATHI: break;
		case LANG_SANSKRIT: break;
		case LANG_MONGOLIAN: break;
		case LANG_KONKANI: break;
		case LANG_MANIPURI: break;
		case LANG_SINDHI: break;
		case LANG_SYRIAC: break;
		case LANG_KASHMIRI: break;
		case LANG_DIVEHI: break;
	}

	/* Deal with exceptions */
	if (posix == NULL) {
		switch (lcid) {
			case 0x0455: posix = L"my_MM"; break; /* Myanmar (Burmese) */
			case 9999: posix = L"ku"; break; /* Kurdish (from NSIS) */
		}
	}

	return posix;
}

/* Determine and set Pidgin locale as follows (in order of priority):
   - Check PIDGINLANG env var
   - Check NSIS Installer Language reg value
   - Use default user locale
*/
static const wchar_t *winpidgin_get_locale() {
	const wchar_t *locale = NULL;
	LCID lcid;
	wchar_t data[10];
	DWORD datalen = sizeof(data) / sizeof(wchar_t);

	/* Check if user set PIDGINLANG env var */
	if ((locale = _wgetenv(L"PIDGINLANG")))
		return locale;

	if (!portable_mode && read_reg_string(HKEY_CURRENT_USER, L"SOFTWARE\\pidgin",
			L"Installer Language", (LPBYTE) &data, &datalen)) {
		if ((locale = winpidgin_lcid_to_posix(_wtoi(data))))
			return locale;
	}

	lcid = GetUserDefaultLCID();
	if ((locale = winpidgin_lcid_to_posix(lcid)))
		return locale;

	return L"en";
}

static void winpidgin_set_locale() {
	const wchar_t *locale;
	wchar_t envstr[25];

	locale = winpidgin_get_locale();

	_snwprintf(envstr, sizeof(envstr) / sizeof(wchar_t), L"LANG=%s", locale);
	wprintf(L"Setting locale: %s\n", envstr);
	_wputenv(envstr);
}


static void winpidgin_add_stuff_to_path() {
	wchar_t perl_path[MAX_PATH + 1];
	wchar_t *ppath = NULL;
	wchar_t mit_kerberos_path[MAX_PATH + 1];
	wchar_t *mpath = NULL;
	DWORD plen;

	printf("%s", "Looking for Perl... ");

	plen = sizeof(perl_path) / sizeof(wchar_t);
	if (read_reg_string(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Perl", L"",
			    (LPBYTE) &perl_path, &plen)) {
		/* We *could* check for perl510.dll, but it seems unnecessary. */
		wprintf(L"found in '%s'.\n", perl_path);

		if (perl_path[wcslen(perl_path) - 1] != L'\\')
			wcscat(perl_path, L"\\");
		wcscat(perl_path, L"bin");

		ppath = perl_path;
	} else
		printf("%s", "not found.\n");

	printf("%s", "Looking for MIT Kerberos... ");

	plen = sizeof(mit_kerberos_path) / sizeof(wchar_t);
	if (read_reg_string(HKEY_LOCAL_MACHINE, L"SOFTWARE\\MIT\\Kerberos", L"InstallDir",
			    (LPBYTE) &mit_kerberos_path, &plen)) {
		/* We *could* check for gssapi32.dll */
		wprintf(L"found in '%s'.\n", mit_kerberos_path);

		if (mit_kerberos_path[wcslen(mit_kerberos_path) - 1] != L'\\')
			wcscat(mit_kerberos_path, L"\\");
		wcscat(mit_kerberos_path, L"bin");

		mpath = mit_kerberos_path;
	} else
		printf("%s", "not found.\n");

	if (ppath != NULL || mpath != NULL) {
		const wchar_t *path = _wgetenv(L"PATH");
		BOOL add_ppath = ppath != NULL && (path == NULL || !wcsstr(path, ppath));
		BOOL add_mpath = mpath != NULL && (path == NULL || !wcsstr(path, mpath));
		wchar_t *newpath;
		int newlen;

		if (add_ppath || add_mpath) {
			/* Enough to add "PATH=" + path + ";"  + ppath + ";" + mpath + \0 */
			newlen = 6 + (path ? wcslen(path) + 1 : 0);
			if (add_ppath)
				newlen += wcslen(ppath) + 1;
			if (add_mpath)
				newlen += wcslen(mpath) + 1;
			newpath = malloc(newlen * sizeof(wchar_t));

			_snwprintf(newpath, newlen, L"PATH=%s%s%s%s%s%s",
				  path ? path : L"",
				  path ? L";" : L"",
				  add_ppath ? ppath : L"",
				  add_ppath ? L";" : L"",
				  add_mpath ? mpath : L"",
				  add_mpath ? L";" : L"");

			wprintf(L"New PATH: %s\n", newpath);

			_wputenv(newpath);
			free(newpath);
		}
	}
}

#define PIDGIN_WM_FOCUS_REQUEST (WM_APP + 13)
#define PIDGIN_WM_PROTOCOL_HANDLE (WM_APP + 14)

static BOOL winpidgin_set_running(BOOL fail_if_running) {
	HANDLE h;

	if ((h = CreateMutexW(NULL, FALSE, L"pidgin_is_running"))) {
		DWORD err = GetLastError();
		if (err == ERROR_ALREADY_EXISTS) {
			if (fail_if_running) {
				HWND msg_win;

				printf("An instance of Pidgin is already running.\n");

				if((msg_win = FindWindowExW(NULL, NULL, L"WinpidginMsgWinCls", NULL)))
					if(SendMessage(msg_win, PIDGIN_WM_FOCUS_REQUEST, (WPARAM) NULL, (LPARAM) NULL))
						return FALSE;

				/* If we get here, the focus request wasn't successful */

				MessageBoxW(NULL,
					L"An instance of Pidgin is already running",
					NULL, MB_OK | MB_TOPMOST);

				return FALSE;
			}
		} else if (err != ERROR_SUCCESS)
			printf("Error (%u) accessing \"pidgin_is_running\" mutex.\n", (UINT) err);
	}
	return TRUE;
}

#define PROTO_HANDLER_SWITCH L"--protocolhandler="

static void handle_protocol(wchar_t *cmd) {
	char *remote_msg, *utf8msg;
	wchar_t *tmp1, *tmp2;
	int len, wlen;
	SIZE_T len_written;
	HWND msg_win;
	DWORD pid;
	HANDLE process;

	/* The start of the message */
	tmp1 = cmd + wcslen(PROTO_HANDLER_SWITCH);

	/* The end of the message */
	if ((tmp2 = wcschr(tmp1, L' ')))
		wlen = (tmp2 - tmp1);
	else
		wlen = wcslen(tmp1);

	if (wlen == 0) {
		printf("No protocol message specified.\n");
		return;
	}

	if (!(msg_win = FindWindowExW(NULL, NULL, L"WinpidginMsgWinCls", NULL))) {
		printf("Unable to find an instance of Pidgin to handle protocol message.\n");
		return;
	}

	len = WideCharToMultiByte(CP_UTF8, 0, tmp1,
			wlen, NULL, 0, NULL, NULL);
	if (len) {
		utf8msg = malloc(len * sizeof(char));
		len = WideCharToMultiByte(CP_UTF8, 0, tmp1,
			wlen, utf8msg, len, NULL, NULL);
	}

	if (len == 0) {
		printf("No protocol message specified.\n");
		return;
	}

	GetWindowThreadProcessId(msg_win, &pid);
	if (!(process = OpenProcess(PROCESS_VM_OPERATION | PROCESS_VM_WRITE, FALSE, pid))) {
		DWORD dw = GetLastError();
		const wchar_t *err_msg = get_win32_error_message(dw);
		wprintf(L"Unable to open Pidgin process. (%u) %s\n", (UINT) dw, err_msg);
		return;
	}

	wprintf(L"Trying to handle protocol message:\n'%.*s'\n", wlen, tmp1);

	/* MEM_COMMIT initializes the memory to zero
	 * so we don't need to worry that our section of utf8msg isn't nul-terminated */
	if ((remote_msg = (char*) VirtualAllocEx(process, NULL, len + 1, MEM_COMMIT, PAGE_READWRITE))) {
		if (WriteProcessMemory(process, remote_msg, utf8msg, len, &len_written)) {
			if (!SendMessageA(msg_win, PIDGIN_WM_PROTOCOL_HANDLE, len_written, (LPARAM) remote_msg))
				printf("Unable to send protocol message to Pidgin instance.\n");
		} else {
			DWORD dw = GetLastError();
			const wchar_t *err_msg = get_win32_error_message(dw);
			wprintf(L"Unable to write to remote memory. (%u) %s\n", (UINT) dw, err_msg);
		}

		VirtualFreeEx(process, remote_msg, 0, MEM_RELEASE);
	} else {
		DWORD dw = GetLastError();
		const wchar_t *err_msg = get_win32_error_message(dw);
		wprintf(L"Unable to allocate remote memory. (%u) %s\n", (UINT) dw, err_msg);
	}

	CloseHandle(process);
	free(utf8msg);
}


int _stdcall
WinMain (struct HINSTANCE__ *hInstance, struct HINSTANCE__ *hPrevInstance,
		char *lpszCmdLine, int nCmdShow) {
	wchar_t errbuf[512];
	wchar_t pidgin_dir[MAX_PATH];
	wchar_t *pidgin_dir_start = NULL;
	wchar_t exe_name[MAX_PATH];
	HMODULE hmod;
	wchar_t *wtmp;
	int pidgin_argc;
	char **pidgin_argv; /* This is in utf-8 */
	int i, j, k;
	BOOL debug = FALSE, help = FALSE, version = FALSE, multiple = FALSE, success;
	LPWSTR *szArglist;
	LPWSTR cmdLine;

	/* If debug or help or version flag used, create console for output */
	for (i = 1; i < __argc; i++) {
		if (strlen(__argv[i]) > 1 && __argv[i][0] == '-') {
			/* check if we're looking at -- or - option */
			if (__argv[i][1] == '-') {
				if (strstr(__argv[i], "--debug") == __argv[i])
					debug = TRUE;
				else if (strstr(__argv[i], "--help") == __argv[i])
					help = TRUE;
				else if (strstr(__argv[i], "--version") == __argv[i])
					version = TRUE;
				else if (strstr(__argv[i], "--multiple") == __argv[i])
					multiple = TRUE;
			} else {
				if (strchr(__argv[i], 'd'))
					debug = TRUE;
				else if (strchr(__argv[i], 'h'))
					help = TRUE;
				else if (strchr(__argv[i], 'v'))
					version = TRUE;
				else if (strchr(__argv[i], 'm'))
					multiple = TRUE;
			}
		}
	}

	if (debug || help || version) {
		/* If stdout hasn't been redirected to a file, alloc a console
		 *  (_istty() doesn't work for stuff using the GUI subsystem) */
		if (_fileno(stdout) == -1 || _fileno(stdout) == -2) {
			LPFNATTACHCONSOLE MyAttachConsole = NULL;
			if ((hmod = GetModuleHandleW(L"kernel32.dll"))) {
				MyAttachConsole =
					(LPFNATTACHCONSOLE)
					GetProcAddress(hmod, "AttachConsole");
			}
			if ((MyAttachConsole && MyAttachConsole(ATTACH_PARENT_PROCESS))
					|| AllocConsole()) {
				freopen("CONOUT$", "w", stdout);
				freopen("CONOUT$", "w", stderr);
			}
		}
	}

	cmdLine = GetCommandLineW();

	/* If this is a protocol handler invocation, deal with it accordingly */
	if ((wtmp = wcsstr(cmdLine, PROTO_HANDLER_SWITCH)) != NULL) {
		handle_protocol(wtmp);
		return 0;
	}

	/* Load exception handler if we have it */
	if (GetModuleFileNameW(NULL, pidgin_dir, MAX_PATH) != 0) {

		/* primitive dirname() */
		pidgin_dir_start = wcsrchr(pidgin_dir, L'\\');

		if (pidgin_dir_start) {
			HMODULE hmod;
			pidgin_dir_start[0] = L'\0';

			/* tmp++ will now point to the executable file name */
			wcscpy(exe_name, pidgin_dir_start + 1);

			wcscat(pidgin_dir, L"\\exchndl.dll");
			if ((hmod = LoadLibraryW(pidgin_dir))) {
				FARPROC proc;
				/* exchndl.dll is built without UNICODE */
				char debug_dir[MAX_PATH];
				printf("Loaded exchndl.dll\n");
				/* Temporarily override exchndl.dll's logfile
				 * to something sane (Pidgin will override it
				 * again when it initializes) */
				proc = GetProcAddress(hmod, "SetLogFile");
				if (proc) {
					if (GetTempPathA(sizeof(debug_dir) * sizeof(char), debug_dir) != 0) {
						strcat(debug_dir, "pidgin.RPT");
						printf(" Setting exchndl.dll LogFile to %s\n",
							debug_dir);
						(proc)(debug_dir);
					}
				}
				proc = GetProcAddress(hmod, "SetDebugInfoDir");
				if (proc) {
					char *pidgin_dir_ansi = NULL;
					/* Restore pidgin_dir to point to where the executable is */
					pidgin_dir_start[0] = L'\0';
					i = WideCharToMultiByte(CP_ACP, 0, pidgin_dir,
						-1, NULL, 0, NULL, NULL);
					if (i != 0) {
						pidgin_dir_ansi = malloc(i * sizeof(char));
						i = WideCharToMultiByte(CP_ACP, 0, pidgin_dir,
							-1, pidgin_dir_ansi, i, NULL, NULL);
						if (i == 0) {
							free(pidgin_dir_ansi);
							pidgin_dir_ansi = NULL;
						}
					}
					if (pidgin_dir_ansi != NULL) {
						_snprintf(debug_dir, sizeof(debug_dir) / sizeof(char),
							"%s\\pidgin-%s-dbgsym",
							pidgin_dir_ansi,  VERSION);
						debug_dir[sizeof(debug_dir) / sizeof(char) - 1] = '\0';
						printf(" Setting exchndl.dll DebugInfoDir to %s\n",
							debug_dir);
						(proc)(debug_dir);
						free(pidgin_dir_ansi);
					}
				}

			}

			/* Restore pidgin_dir to point to where the executable is */
			pidgin_dir_start[0] = L'\0';
		}
	} else {
		DWORD dw = GetLastError();
		const wchar_t *err_msg = get_win32_error_message(dw);
		_snwprintf(errbuf, 512,
			L"Error getting module filename.\nError: (%u) %s",
			(UINT) dw, err_msg);
		wprintf(L"%s\n", errbuf);
		MessageBoxW(NULL, errbuf, NULL, MB_OK | MB_TOPMOST);
		pidgin_dir[0] = L'\0';
	}

	/* Determine if we're running in portable mode */
	if (wcsstr(cmdLine, L"--portable-mode")
			|| (exe_name != NULL && wcsstr(exe_name, L"-portable.exe"))) {
		printf("Running in PORTABLE mode.\n");
		portable_mode = TRUE;
	}

	if (portable_mode)
		portable_mode_dll_prep(pidgin_dir);
	else if (!getenv("PIDGIN_NO_DLL_CHECK"))
		dll_prep(pidgin_dir);

	winpidgin_set_locale();

	winpidgin_add_stuff_to_path();

	/* If help, version or multiple flag used, do not check Mutex */
	if (!help && !version)
		if (!winpidgin_set_running(getenv("PIDGIN_MULTI_INST") == NULL && !multiple))
			return 0;

	/* Now we are ready for Pidgin .. */
	wcscat(pidgin_dir, L"\\pidgin.dll");
	if ((hmod = LoadLibraryW(pidgin_dir)))
		pidgin_main = (LPFNPIDGINMAIN) GetProcAddress(hmod, "pidgin_main");

	/* Restore pidgin_dir to point to where the executable is */
	if (pidgin_dir_start)
		pidgin_dir_start[0] = L'\0';

	if (!pidgin_main) {
		DWORD dw = GetLastError();
		BOOL mod_not_found = (dw == ERROR_MOD_NOT_FOUND || dw == ERROR_DLL_NOT_FOUND);
		const wchar_t *err_msg = get_win32_error_message(dw);

		_snwprintf(errbuf, 512, L"Error loading pidgin.dll.\nError: (%u) %s%s%s",
			(UINT) dw, err_msg,
			mod_not_found ? L"\n" : L"",
			mod_not_found ? L"This probably means that GTK+ can't be found." : L"");
		wprintf(L"%s\n", errbuf);
		MessageBoxW(NULL, errbuf, L"Error", MB_OK | MB_TOPMOST);

		return 0;
	}

	/* Convert argv to utf-8*/
	szArglist = CommandLineToArgvW(cmdLine, &j);
	pidgin_argc = j;
	pidgin_argv = malloc(pidgin_argc* sizeof(char*));
	k = 0;
	for (i = 0; i < j; i++) {
		success = FALSE;
		/* Remove the --portable-mode arg from the args passed to pidgin so it doesn't choke */
		if (wcsstr(szArglist[i], L"--portable-mode") == NULL) {
			int len = WideCharToMultiByte(CP_UTF8, 0, szArglist[i],
				-1, NULL, 0, NULL, NULL);
			if (len != 0) {
				char *arg = malloc(len * sizeof(char));
				len = WideCharToMultiByte(CP_UTF8, 0, szArglist[i],
					-1, arg, len, NULL, NULL);
				if (len != 0) {
					pidgin_argv[k++] = arg;
					success = TRUE;
				}
			}
			if (!success)
				wprintf(L"Error converting argument '%s' to UTF-8\n",
					szArglist[i]);
		}
		if (!success)
			pidgin_argc--;
	}
	LocalFree(szArglist);


	return pidgin_main(hInstance, pidgin_argc, pidgin_argv);
}