1 /**
2  * \file
3  * System.Diagnostics.Process support
4  *
5  * Author:
6  *	Dick Porter (dick@ximian.com)
7  *
8  * Copyright 2002 Ximian, Inc.
9  * Copyright 2002-2006 Novell, Inc.
10  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
11  */
12 
13 #include <config.h>
14 #include <glib.h>
15 
16 #include <stdio.h>
17 #include <string.h>
18 #include <pthread.h>
19 #include <sched.h>
20 #include <sys/time.h>
21 #include <errno.h>
22 #include <sys/types.h>
23 #include <sys/stat.h>
24 #include <unistd.h>
25 #ifdef HAVE_SIGNAL_H
26 #include <signal.h>
27 #endif
28 #include <sys/time.h>
29 #include <fcntl.h>
30 #ifdef HAVE_SYS_PARAM_H
31 #include <sys/param.h>
32 #endif
33 #include <ctype.h>
34 
35 #ifdef HAVE_SYS_WAIT_H
36 #include <sys/wait.h>
37 #endif
38 #ifdef HAVE_SYS_RESOURCE_H
39 #include <sys/resource.h>
40 #endif
41 
42 #ifdef HAVE_SYS_MKDEV_H
43 #include <sys/mkdev.h>
44 #endif
45 
46 #ifdef HAVE_UTIME_H
47 #include <utime.h>
48 #endif
49 
50 #include <mono/metadata/w32process.h>
51 #include <mono/metadata/w32process-internals.h>
52 #include <mono/metadata/w32process-unix-internals.h>
53 #include <mono/metadata/w32error.h>
54 #include <mono/metadata/class.h>
55 #include <mono/metadata/class-internals.h>
56 #include <mono/metadata/object.h>
57 #include <mono/metadata/object-internals.h>
58 #include <mono/metadata/metadata.h>
59 #include <mono/metadata/metadata-internals.h>
60 #include <mono/metadata/exception.h>
61 #include <mono/metadata/w32handle.h>
62 #include <mono/metadata/w32file.h>
63 #include <mono/utils/mono-membar.h>
64 #include <mono/utils/mono-logger-internals.h>
65 #include <mono/utils/strenc.h>
66 #include <mono/utils/mono-proclib.h>
67 #include <mono/utils/mono-path.h>
68 #include <mono/utils/mono-lazy-init.h>
69 #include <mono/utils/mono-signal-handler.h>
70 #include <mono/utils/mono-time.h>
71 #include <mono/utils/mono-mmap.h>
72 #include <mono/utils/strenc.h>
73 #include <mono/utils/mono-io-portability.h>
74 #include <mono/utils/w32api.h>
75 
76 #ifndef MAXPATHLEN
77 #define MAXPATHLEN 242
78 #endif
79 
80 #define STILL_ACTIVE ((int) 0x00000103)
81 
82 #define LOGDEBUG(...)
83 /* define LOGDEBUG(...) g_message(__VA_ARGS__)  */
84 
85 /* The process' environment strings */
86 #if defined(__APPLE__)
87 #if defined (TARGET_OSX)
88 /* Apple defines this in crt_externs.h but doesn't provide that header for
89  * arm-apple-darwin9.  We'll manually define the symbol on Apple as it does
90  * in fact exist on all implementations (so far)
91  */
92 gchar ***_NSGetEnviron(void);
93 #define environ (*_NSGetEnviron())
94 #else
95 static char *mono_environ[1] = { NULL };
96 #define environ mono_environ
97 #endif /* defined (TARGET_OSX) */
98 #else
99 extern char **environ;
100 #endif
101 
102 typedef enum {
103 	STARTF_USESHOWWINDOW=0x001,
104 	STARTF_USESIZE=0x002,
105 	STARTF_USEPOSITION=0x004,
106 	STARTF_USECOUNTCHARS=0x008,
107 	STARTF_USEFILLATTRIBUTE=0x010,
108 	STARTF_RUNFULLSCREEN=0x020,
109 	STARTF_FORCEONFEEDBACK=0x040,
110 	STARTF_FORCEOFFFEEDBACK=0x080,
111 	STARTF_USESTDHANDLES=0x100
112 } StartupFlags;
113 
114 typedef struct {
115 	gpointer input;
116 	gpointer output;
117 	gpointer error;
118 } StartupHandles;
119 
120 typedef struct {
121 #if G_BYTE_ORDER == G_BIG_ENDIAN
122 	guint32 highDateTime;
123 	guint32 lowDateTime;
124 #else
125 	guint32 lowDateTime;
126 	guint32 highDateTime;
127 #endif
128 } ProcessTime;
129 
130 /*
131  * Process describes processes we create.
132  * It contains a semaphore that can be waited on in order to wait
133  * for process termination.
134  */
135 typedef struct _Process {
136 	pid_t pid; /* the pid of the process. This value is only valid until the process has exited. */
137 	MonoCoopSem exit_sem; /* this semaphore will be released when the process exits */
138 	int status; /* the exit status */
139 	gint32 handle_count; /* the number of handles to this process instance */
140 	/* we keep a ref to the creating _WapiHandle_process handle until
141 	 * the process has exited, so that the information there isn't lost.
142 	 */
143 	gpointer handle;
144 	gboolean signalled;
145 	struct _Process *next;
146 } Process;
147 
148 /* MonoW32HandleProcess is a structure containing all the required information for process handling. */
149 typedef struct {
150 	pid_t pid;
151 	gboolean child;
152 	guint32 exitstatus;
153 	gpointer main_thread;
154 	guint64 create_time;
155 	guint64 exit_time;
156 	char *pname;
157 	size_t min_working_set;
158 	size_t max_working_set;
159 	gboolean exited;
160 	Process *process;
161 } MonoW32HandleProcess;
162 
163 /*
164  * VS_VERSIONINFO:
165  *
166  * 2 bytes: Length in bytes (this block, and all child blocks. does _not_ include alignment padding between blocks)
167  * 2 bytes: Length in bytes of VS_FIXEDFILEINFO struct
168  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
169  * Variable length unicode string (null terminated): Key (currently "VS_VERSION_INFO")
170  * Variable length padding to align VS_FIXEDFILEINFO on a 32-bit boundary
171  * VS_FIXEDFILEINFO struct
172  * Variable length padding to align Child struct on a 32-bit boundary
173  * Child struct (zero or one StringFileInfo structs, zero or one VarFileInfo structs)
174  */
175 
176 /*
177  * StringFileInfo:
178  *
179  * 2 bytes: Length in bytes (includes this block, as well as all Child blocks)
180  * 2 bytes: Value length (always zero)
181  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
182  * Variable length unicode string: Key (currently "StringFileInfo")
183  * Variable length padding to align Child struct on a 32-bit boundary
184  * Child structs ( one or more StringTable structs.  Each StringTable struct's Key member indicates the appropriate language and code page for displaying the text in that StringTable struct.)
185  */
186 
187 /*
188  * StringTable:
189  *
190  * 2 bytes: Length in bytes (includes this block as well as all Child blocks, but excludes any padding between String blocks)
191  * 2 bytes: Value length (always zero)
192  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
193  * Variable length unicode string: Key. An 8-digit hex number stored as a unicode string.  The four most significant digits represent the language identifier.  The four least significant digits represent the code page for which the data is formatted.
194  * Variable length padding to align Child struct on a 32-bit boundary
195  * Child structs (an array of one or more String structs (each aligned on a 32-bit boundary)
196  */
197 
198 /*
199  * String:
200  *
201  * 2 bytes: Length in bytes (of this block)
202  * 2 bytes: Value length (the length in words of the Value member)
203  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
204  * Variable length unicode string: Key. arbitrary string, identifies data.
205  * Variable length padding to align Value on a 32-bit boundary
206  * Value: Variable length unicode string, holding data.
207  */
208 
209 /*
210  * VarFileInfo:
211  *
212  * 2 bytes: Length in bytes (includes this block, as well as all Child blocks)
213  * 2 bytes: Value length (always zero)
214  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
215  * Variable length unicode string: Key (currently "VarFileInfo")
216  * Variable length padding to align Child struct on a 32-bit boundary
217  * Child structs (a Var struct)
218  */
219 
220 /*
221  * Var:
222  *
223  * 2 bytes: Length in bytes of this block
224  * 2 bytes: Value length in bytes of the Value
225  * 2 bytes: Type (contains 1 if version resource contains text data and 0 if version resource contains binary data)
226  * Variable length unicode string: Key ("Translation")
227  * Variable length padding to align Value on a 32-bit boundary
228  * Value: an array of one or more 4 byte values that are language and code page identifier pairs, low-order word containing a language identifier, and the high-order word containing a code page number.  Either word can be zero, indicating that the file is language or code page independent.
229  */
230 
231 #if G_BYTE_ORDER == G_BIG_ENDIAN
232 #define VS_FFI_SIGNATURE	0xbd04effe
233 #define VS_FFI_STRUCVERSION	0x00000100
234 #else
235 #define VS_FFI_SIGNATURE	0xfeef04bd
236 #define VS_FFI_STRUCVERSION	0x00010000
237 #endif
238 
239 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
240 
241 #define IMAGE_DIRECTORY_ENTRY_EXPORT	0
242 #define IMAGE_DIRECTORY_ENTRY_IMPORT	1
243 #define IMAGE_DIRECTORY_ENTRY_RESOURCE	2
244 
245 #define IMAGE_SIZEOF_SHORT_NAME	8
246 
247 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
248 #define IMAGE_DOS_SIGNATURE	0x4d5a
249 #define IMAGE_NT_SIGNATURE	0x50450000
250 #define IMAGE_NT_OPTIONAL_HDR32_MAGIC	0xb10
251 #define IMAGE_NT_OPTIONAL_HDR64_MAGIC	0xb20
252 #else
253 #define IMAGE_DOS_SIGNATURE	0x5a4d
254 #define IMAGE_NT_SIGNATURE	0x00004550
255 #define IMAGE_NT_OPTIONAL_HDR32_MAGIC	0x10b
256 #define IMAGE_NT_OPTIONAL_HDR64_MAGIC	0x20b
257 #endif
258 
259 typedef struct {
260 	guint16 e_magic;
261 	guint16 e_cblp;
262 	guint16 e_cp;
263 	guint16 e_crlc;
264 	guint16 e_cparhdr;
265 	guint16 e_minalloc;
266 	guint16 e_maxalloc;
267 	guint16 e_ss;
268 	guint16 e_sp;
269 	guint16 e_csum;
270 	guint16 e_ip;
271 	guint16 e_cs;
272 	guint16 e_lfarlc;
273 	guint16 e_ovno;
274 	guint16 e_res[4];
275 	guint16 e_oemid;
276 	guint16 e_oeminfo;
277 	guint16 e_res2[10];
278 	guint32 e_lfanew;
279 } IMAGE_DOS_HEADER;
280 
281 typedef struct {
282 	guint16 Machine;
283 	guint16 NumberOfSections;
284 	guint32 TimeDateStamp;
285 	guint32 PointerToSymbolTable;
286 	guint32 NumberOfSymbols;
287 	guint16 SizeOfOptionalHeader;
288 	guint16 Characteristics;
289 } IMAGE_FILE_HEADER;
290 
291 typedef struct {
292 	guint32 VirtualAddress;
293 	guint32 Size;
294 } IMAGE_DATA_DIRECTORY;
295 
296 typedef struct {
297 	guint16 Magic;
298 	guint8 MajorLinkerVersion;
299 	guint8 MinorLinkerVersion;
300 	guint32 SizeOfCode;
301 	guint32 SizeOfInitializedData;
302 	guint32 SizeOfUninitializedData;
303 	guint32 AddressOfEntryPoint;
304 	guint32 BaseOfCode;
305 	guint32 BaseOfData;
306 	guint32 ImageBase;
307 	guint32 SectionAlignment;
308 	guint32 FileAlignment;
309 	guint16 MajorOperatingSystemVersion;
310 	guint16 MinorOperatingSystemVersion;
311 	guint16 MajorImageVersion;
312 	guint16 MinorImageVersion;
313 	guint16 MajorSubsystemVersion;
314 	guint16 MinorSubsystemVersion;
315 	guint32 Win32VersionValue;
316 	guint32 SizeOfImage;
317 	guint32 SizeOfHeaders;
318 	guint32 CheckSum;
319 	guint16 Subsystem;
320 	guint16 DllCharacteristics;
321 	guint32 SizeOfStackReserve;
322 	guint32 SizeOfStackCommit;
323 	guint32 SizeOfHeapReserve;
324 	guint32 SizeOfHeapCommit;
325 	guint32 LoaderFlags;
326 	guint32 NumberOfRvaAndSizes;
327 	IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
328 } IMAGE_OPTIONAL_HEADER32;
329 
330 typedef struct {
331 	guint16 Magic;
332 	guint8 MajorLinkerVersion;
333 	guint8 MinorLinkerVersion;
334 	guint32 SizeOfCode;
335 	guint32 SizeOfInitializedData;
336 	guint32 SizeOfUninitializedData;
337 	guint32 AddressOfEntryPoint;
338 	guint32 BaseOfCode;
339 	guint64 ImageBase;
340 	guint32 SectionAlignment;
341 	guint32 FileAlignment;
342 	guint16 MajorOperatingSystemVersion;
343 	guint16 MinorOperatingSystemVersion;
344 	guint16 MajorImageVersion;
345 	guint16 MinorImageVersion;
346 	guint16 MajorSubsystemVersion;
347 	guint16 MinorSubsystemVersion;
348 	guint32 Win32VersionValue;
349 	guint32 SizeOfImage;
350 	guint32 SizeOfHeaders;
351 	guint32 CheckSum;
352 	guint16 Subsystem;
353 	guint16 DllCharacteristics;
354 	guint64 SizeOfStackReserve;
355 	guint64 SizeOfStackCommit;
356 	guint64 SizeOfHeapReserve;
357 	guint64 SizeOfHeapCommit;
358 	guint32 LoaderFlags;
359 	guint32 NumberOfRvaAndSizes;
360 	IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
361 } IMAGE_OPTIONAL_HEADER64;
362 
363 #if SIZEOF_VOID_P == 8
364 typedef IMAGE_OPTIONAL_HEADER64 IMAGE_OPTIONAL_HEADER;
365 #else
366 typedef IMAGE_OPTIONAL_HEADER32 IMAGE_OPTIONAL_HEADER;
367 #endif
368 
369 typedef struct {
370 	guint32 Signature;
371 	IMAGE_FILE_HEADER FileHeader;
372 	IMAGE_OPTIONAL_HEADER32 OptionalHeader;
373 } IMAGE_NT_HEADERS32;
374 
375 typedef struct {
376 	guint32 Signature;
377 	IMAGE_FILE_HEADER FileHeader;
378 	IMAGE_OPTIONAL_HEADER64 OptionalHeader;
379 } IMAGE_NT_HEADERS64;
380 
381 #if SIZEOF_VOID_P == 8
382 typedef IMAGE_NT_HEADERS64 IMAGE_NT_HEADERS;
383 #else
384 typedef IMAGE_NT_HEADERS32 IMAGE_NT_HEADERS;
385 #endif
386 
387 typedef struct {
388 	guint8 Name[IMAGE_SIZEOF_SHORT_NAME];
389 	union {
390 		guint32 PhysicalAddress;
391 		guint32 VirtualSize;
392 	} Misc;
393 	guint32 VirtualAddress;
394 	guint32 SizeOfRawData;
395 	guint32 PointerToRawData;
396 	guint32 PointerToRelocations;
397 	guint32 PointerToLinenumbers;
398 	guint16 NumberOfRelocations;
399 	guint16 NumberOfLinenumbers;
400 	guint32 Characteristics;
401 } IMAGE_SECTION_HEADER;
402 
403 #define IMAGE_FIRST_SECTION32(header) ((IMAGE_SECTION_HEADER *)((gsize)(header) + G_STRUCT_OFFSET (IMAGE_NT_HEADERS32, OptionalHeader) + GUINT16_FROM_LE (((IMAGE_NT_HEADERS32 *)(header))->FileHeader.SizeOfOptionalHeader)))
404 
405 #define RT_CURSOR	0x01
406 #define RT_BITMAP	0x02
407 #define RT_ICON		0x03
408 #define RT_MENU		0x04
409 #define RT_DIALOG	0x05
410 #define RT_STRING	0x06
411 #define RT_FONTDIR	0x07
412 #define RT_FONT		0x08
413 #define RT_ACCELERATOR	0x09
414 #define RT_RCDATA	0x0a
415 #define RT_MESSAGETABLE	0x0b
416 #define RT_GROUP_CURSOR	0x0c
417 #define RT_GROUP_ICON	0x0e
418 #define RT_VERSION	0x10
419 #define RT_DLGINCLUDE	0x11
420 #define RT_PLUGPLAY	0x13
421 #define RT_VXD		0x14
422 #define RT_ANICURSOR	0x15
423 #define RT_ANIICON	0x16
424 #define RT_HTML		0x17
425 #define RT_MANIFEST	0x18
426 
427 typedef struct {
428 	guint32 Characteristics;
429 	guint32 TimeDateStamp;
430 	guint16 MajorVersion;
431 	guint16 MinorVersion;
432 	guint16 NumberOfNamedEntries;
433 	guint16 NumberOfIdEntries;
434 } IMAGE_RESOURCE_DIRECTORY;
435 
436 typedef struct {
437 	union {
438 		struct {
439 #if G_BYTE_ORDER == G_BIG_ENDIAN
440 			guint32 NameIsString:1;
441 			guint32 NameOffset:31;
442 #else
443 			guint32 NameOffset:31;
444 			guint32 NameIsString:1;
445 #endif
446 		};
447 		guint32 Name;
448 #if G_BYTE_ORDER == G_BIG_ENDIAN
449 		struct {
450 			guint16 __wapi_big_endian_padding;
451 			guint16 Id;
452 		};
453 #else
454 		guint16 Id;
455 #endif
456 	};
457 	union {
458 		guint32 OffsetToData;
459 		struct {
460 #if G_BYTE_ORDER == G_BIG_ENDIAN
461 			guint32 DataIsDirectory:1;
462 			guint32 OffsetToDirectory:31;
463 #else
464 			guint32 OffsetToDirectory:31;
465 			guint32 DataIsDirectory:1;
466 #endif
467 		};
468 	};
469 } IMAGE_RESOURCE_DIRECTORY_ENTRY;
470 
471 typedef struct {
472 	guint32 OffsetToData;
473 	guint32 Size;
474 	guint32 CodePage;
475 	guint32 Reserved;
476 } IMAGE_RESOURCE_DATA_ENTRY;
477 
478 #define VOS_UNKNOWN		0x00000000
479 #define VOS_DOS			0x00010000
480 #define VOS_OS216		0x00020000
481 #define VOS_OS232		0x00030000
482 #define VOS_NT			0x00040000
483 #define VOS__BASE		0x00000000
484 #define VOS__WINDOWS16		0x00000001
485 #define VOS__PM16		0x00000002
486 #define VOS__PM32		0x00000003
487 #define VOS__WINDOWS32		0x00000004
488 /* Should "embrace and extend" here with some entries for linux etc */
489 
490 #define VOS_DOS_WINDOWS16	0x00010001
491 #define VOS_DOS_WINDOWS32	0x00010004
492 #define VOS_OS216_PM16		0x00020002
493 #define VOS_OS232_PM32		0x00030003
494 #define VOS_NT_WINDOWS32	0x00040004
495 
496 #define VFT_UNKNOWN		0x0000
497 #define VFT_APP			0x0001
498 #define VFT_DLL			0x0002
499 #define VFT_DRV			0x0003
500 #define VFT_FONT		0x0004
501 #define VFT_VXD			0x0005
502 #define VFT_STATIC_LIB		0x0007
503 
504 #define VFT2_UNKNOWN		0x0000
505 #define VFT2_DRV_PRINTER	0x0001
506 #define VFT2_DRV_KEYBOARD	0x0002
507 #define VFT2_DRV_LANGUAGE	0x0003
508 #define VFT2_DRV_DISPLAY	0x0004
509 #define VFT2_DRV_MOUSE		0x0005
510 #define VFT2_DRV_NETWORK	0x0006
511 #define VFT2_DRV_SYSTEM		0x0007
512 #define VFT2_DRV_INSTALLABLE	0x0008
513 #define VFT2_DRV_SOUND		0x0009
514 #define VFT2_DRV_COMM		0x000a
515 #define VFT2_DRV_INPUTMETHOD	0x000b
516 #define VFT2_FONT_RASTER	0x0001
517 #define VFT2_FONT_VECTOR	0x0002
518 #define VFT2_FONT_TRUETYPE	0x0003
519 
520 #define MAKELANGID(primary,secondary) ((guint16)((secondary << 10) | (primary)))
521 
522 #define ALIGN32(ptr) ptr = (gpointer)((char *)ptr + 3); ptr = (gpointer)((char *)ptr - ((gsize)ptr & 3));
523 
524 #if HAVE_SIGACTION
525 static mono_lazy_init_t process_sig_chld_once = MONO_LAZY_INIT_STATUS_NOT_INITIALIZED;
526 #endif
527 
528 static gchar *cli_launcher;
529 
530 static Process *processes;
531 static MonoCoopMutex processes_mutex;
532 
533 static pid_t current_pid;
534 static gpointer current_process;
535 
536 static const gunichar2 utf16_space_bytes [2] = { 0x20, 0 };
537 static const gunichar2 *utf16_space = utf16_space_bytes;
538 static const gunichar2 utf16_quote_bytes [2] = { 0x22, 0 };
539 static const gunichar2 *utf16_quote = utf16_quote_bytes;
540 
541 /* Check if a pid is valid - i.e. if a process exists with this pid. */
542 static gboolean
process_is_alive(pid_t pid)543 process_is_alive (pid_t pid)
544 {
545 #if defined(HOST_WATCHOS)
546 	return TRUE; // TODO: Rewrite using sysctl
547 #elif defined(HOST_DARWIN) || defined(__OpenBSD__) || defined(__FreeBSD__)
548 	if (pid == 0)
549 		return FALSE;
550 	if (kill (pid, 0) == 0)
551 		return TRUE;
552 	if (errno == EPERM)
553 		return TRUE;
554 	return FALSE;
555 #elif defined(__HAIKU__)
556 	team_info teamInfo;
557 	if (get_team_info ((team_id)pid, &teamInfo) == B_OK)
558 		return TRUE;
559 	return FALSE;
560 #else
561 	gchar *dir = g_strdup_printf ("/proc/%d", pid);
562 	gboolean result = access (dir, F_OK) == 0;
563 	g_free (dir);
564 	return result;
565 #endif
566 }
567 
568 static void
process_details(MonoW32Handle * handle_data)569 process_details (MonoW32Handle *handle_data)
570 {
571 	MonoW32HandleProcess *process_handle = (MonoW32HandleProcess *) handle_data->specific;
572 	g_print ("pid: %d, exited: %s, exitstatus: %d",
573 		process_handle->pid, process_handle->exited ? "true" : "false", process_handle->exitstatus);
574 }
575 
576 static const gchar*
process_typename(void)577 process_typename (void)
578 {
579 	return "Process";
580 }
581 
582 static gsize
process_typesize(void)583 process_typesize (void)
584 {
585 	return sizeof (MonoW32HandleProcess);
586 }
587 
588 static MonoW32HandleWaitRet
process_wait(MonoW32Handle * handle_data,guint32 timeout,gboolean * alerted)589 process_wait (MonoW32Handle *handle_data, guint32 timeout, gboolean *alerted)
590 {
591 	MonoW32HandleProcess *process_handle;
592 	pid_t pid G_GNUC_UNUSED, ret;
593 	int status;
594 	gint64 start, now;
595 	Process *process;
596 
597 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT ")", __func__, handle_data, timeout);
598 
599 	if (alerted)
600 		*alerted = FALSE;
601 
602 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
603 
604 	if (process_handle->exited) {
605 		/* We've already done this one */
606 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): Process already exited", __func__, handle_data, timeout);
607 		return MONO_W32HANDLE_WAIT_RET_SUCCESS_0;
608 	}
609 
610 	pid = process_handle->pid;
611 
612 	if (pid == mono_process_current_pid ()) {
613 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): waiting on current process", __func__, handle_data, timeout);
614 		return MONO_W32HANDLE_WAIT_RET_TIMEOUT;
615 	}
616 
617 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): PID: %d", __func__, handle_data, timeout, pid);
618 
619 	if (!process_handle->child) {
620 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): waiting on non-child process", __func__, handle_data, timeout);
621 
622 		if (!process_is_alive (pid)) {
623 			/* assume the process has exited */
624 			process_handle->exited = TRUE;
625 			process_handle->exitstatus = -1;
626 			mono_w32handle_set_signal_state (handle_data, TRUE, TRUE);
627 
628 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): non-child process is not alive anymore (2)", __func__, handle_data, timeout);
629 			return MONO_W32HANDLE_WAIT_RET_SUCCESS_0;
630 		}
631 
632 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): non-child process wait failed, error : %s (%d))", __func__, handle_data, timeout, g_strerror (errno), errno);
633 		return MONO_W32HANDLE_WAIT_RET_FAILED;
634 	}
635 
636 	/* We don't need to lock processes here, the entry
637 	 * has a handle_count > 0 which means it will not be freed. */
638 	process = process_handle->process;
639 	g_assert (process);
640 
641 	start = mono_msec_ticks ();
642 	now = start;
643 
644 	while (1) {
645 		if (timeout != MONO_INFINITE_WAIT) {
646 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): waiting on semaphore for %" G_GINT64_FORMAT " ms...",
647 				__func__, handle_data, timeout, timeout - (now - start));
648 			ret = mono_coop_sem_timedwait (&process->exit_sem, (timeout - (now - start)), alerted ? MONO_SEM_FLAGS_ALERTABLE : MONO_SEM_FLAGS_NONE);
649 		} else {
650 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): waiting on semaphore forever...",
651 				__func__, handle_data, timeout);
652 			ret = mono_coop_sem_wait (&process->exit_sem, alerted ? MONO_SEM_FLAGS_ALERTABLE : MONO_SEM_FLAGS_NONE);
653 		}
654 
655 		if (ret == MONO_SEM_TIMEDWAIT_RET_SUCCESS) {
656 			/* Success, process has exited */
657 			mono_coop_sem_post (&process->exit_sem);
658 			break;
659 		}
660 
661 		if (ret == MONO_SEM_TIMEDWAIT_RET_TIMEDOUT) {
662 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): wait timeout (timeout = 0)", __func__, handle_data, timeout);
663 			return MONO_W32HANDLE_WAIT_RET_TIMEOUT;
664 		}
665 
666 		now = mono_msec_ticks ();
667 		if (now - start >= timeout) {
668 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): wait timeout", __func__, handle_data, timeout);
669 			return MONO_W32HANDLE_WAIT_RET_TIMEOUT;
670 		}
671 
672 		if (alerted && ret == MONO_SEM_TIMEDWAIT_RET_ALERTED) {
673 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): wait alerted", __func__, handle_data, timeout);
674 			*alerted = TRUE;
675 			return MONO_W32HANDLE_WAIT_RET_ALERTED;
676 		}
677 	}
678 
679 	/* Process must have exited */
680 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): Waited successfully", __func__, handle_data, timeout);
681 
682 	status = process->status;
683 	if (WIFSIGNALED (status))
684 		process_handle->exitstatus = 128 + WTERMSIG (status);
685 	else
686 		process_handle->exitstatus = WEXITSTATUS (status);
687 
688 	process_handle->exit_time = mono_100ns_datetime ();
689 
690 	process_handle->exited = TRUE;
691 
692 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s (%p, %" G_GUINT32_FORMAT "): Setting pid %d signalled, exit status %d",
693 		   __func__, handle_data, timeout, process_handle->pid, process_handle->exitstatus);
694 
695 	mono_w32handle_set_signal_state (handle_data, TRUE, TRUE);
696 
697 	return MONO_W32HANDLE_WAIT_RET_SUCCESS_0;
698 }
699 
700 static void
processes_cleanup(void)701 processes_cleanup (void)
702 {
703 	static gint32 cleaning_up;
704 	Process *process;
705 	Process *prev = NULL;
706 
707 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s", __func__);
708 
709 	/* Ensure we're not in here in multiple threads at once, nor recursive. */
710 	if (mono_atomic_cas_i32 (&cleaning_up, 1, 0) != 0)
711 		return;
712 
713 	/*
714 	 * This needs to be done outside the lock but atomically, hence the CAS above.
715 	 */
716 	for (process = processes; process; process = process->next) {
717 		if (process->signalled && process->handle) {
718 			/* This process has exited and we need to remove the artifical ref
719 			 * on the handle */
720 			mono_w32handle_close (process->handle);
721 			process->handle = NULL;
722 		}
723 	}
724 
725 	mono_coop_mutex_lock (&processes_mutex);
726 
727 	for (process = processes; process;) {
728 		Process *next = process->next;
729 		if (process->handle_count == 0 && process->signalled) {
730 			/*
731 			 * Unlink the entry.
732 			 */
733 			if (process == processes)
734 				processes = process->next;
735 			else
736 				prev->next = process->next;
737 
738 			mono_coop_sem_destroy (&process->exit_sem);
739 			g_free (process);
740 		} else {
741 			prev = process;
742 		}
743 		process = next;
744 	}
745 
746 	mono_coop_mutex_unlock (&processes_mutex);
747 
748 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s done", __func__);
749 
750 	mono_atomic_xchg_i32 (&cleaning_up, 0);
751 }
752 
753 static void
process_close(gpointer handle,gpointer data)754 process_close (gpointer handle, gpointer data)
755 {
756 	MonoW32HandleProcess *process_handle;
757 
758 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s", __func__);
759 
760 	process_handle = (MonoW32HandleProcess *) data;
761 	g_free (process_handle->pname);
762 	process_handle->pname = NULL;
763 	if (process_handle->process)
764 		mono_atomic_dec_i32 (&process_handle->process->handle_count);
765 	processes_cleanup ();
766 }
767 
768 static MonoW32HandleOps process_ops = {
769 	process_close,		/* close_shared */
770 	NULL,				/* signal */
771 	NULL,				/* own */
772 	NULL,				/* is_owned */
773 	process_wait,			/* special_wait */
774 	NULL,				/* prewait */
775 	process_details,	/* details */
776 	process_typename,	/* typename */
777 	process_typesize,	/* typesize */
778 };
779 
780 static void
process_set_defaults(MonoW32HandleProcess * process_handle)781 process_set_defaults (MonoW32HandleProcess *process_handle)
782 {
783 	/* These seem to be the defaults on w2k */
784 	process_handle->min_working_set = 204800;
785 	process_handle->max_working_set = 1413120;
786 
787 	process_handle->create_time = mono_100ns_datetime ();
788 }
789 
790 static void
process_set_name(MonoW32HandleProcess * process_handle)791 process_set_name (MonoW32HandleProcess *process_handle)
792 {
793 	char *progname, *utf8_progname, *slash;
794 
795 	progname = g_get_prgname ();
796 	utf8_progname = mono_utf8_from_external (progname);
797 
798 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: using [%s] as prog name", __func__, progname);
799 
800 	if (utf8_progname) {
801 		slash = strrchr (utf8_progname, '/');
802 		if (slash)
803 			process_handle->pname = g_strdup (slash+1);
804 		else
805 			process_handle->pname = g_strdup (utf8_progname);
806 		g_free (utf8_progname);
807 	}
808 }
809 
810 void
mono_w32process_init(void)811 mono_w32process_init (void)
812 {
813 	MonoW32HandleProcess process_handle;
814 
815 	mono_w32handle_register_ops (MONO_W32TYPE_PROCESS, &process_ops);
816 
817 	mono_w32handle_register_capabilities (MONO_W32TYPE_PROCESS,
818 		(MonoW32HandleCapability)(MONO_W32HANDLE_CAP_WAIT | MONO_W32HANDLE_CAP_SPECIAL_WAIT));
819 
820 	current_pid = getpid ();
821 
822 	memset (&process_handle, 0, sizeof (process_handle));
823 	process_handle.pid = current_pid;
824 	process_set_defaults (&process_handle);
825 	process_set_name (&process_handle);
826 
827 	current_process = mono_w32handle_new (MONO_W32TYPE_PROCESS, &process_handle);
828 	g_assert (current_process != INVALID_HANDLE_VALUE);
829 
830 	mono_coop_mutex_init (&processes_mutex);
831 }
832 
833 void
mono_w32process_cleanup(void)834 mono_w32process_cleanup (void)
835 {
836 	g_free (cli_launcher);
837 }
838 
839 static int
len16(const gunichar2 * str)840 len16 (const gunichar2 *str)
841 {
842 	int len = 0;
843 
844 	while (*str++ != 0)
845 		len++;
846 
847 	return len;
848 }
849 
850 static gunichar2 *
utf16_concat(const gunichar2 * first,...)851 utf16_concat (const gunichar2 *first, ...)
852 {
853 	va_list args;
854 	int total = 0, i;
855 	const gunichar2 *s;
856 	const gunichar2 *p;
857 	gunichar2 *ret;
858 
859 	va_start (args, first);
860 	total += len16 (first);
861 	for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg(args, gunichar2 *))
862 		total += len16 (s);
863 	va_end (args);
864 
865 	ret = g_new (gunichar2, total + 1);
866 	if (ret == NULL)
867 		return NULL;
868 
869 	ret [total] = 0;
870 	i = 0;
871 	for (s = first; *s != 0; s++)
872 		ret [i++] = *s;
873 	va_start (args, first);
874 	for (s = va_arg (args, gunichar2 *); s != NULL; s = va_arg (args, gunichar2 *)){
875 		for (p = s; *p != 0; p++)
876 			ret [i++] = *p;
877 	}
878 	va_end (args);
879 
880 	return ret;
881 }
882 
883 guint32
mono_w32process_get_pid(gpointer handle)884 mono_w32process_get_pid (gpointer handle)
885 {
886 	MonoW32Handle *handle_data;
887 	guint32 ret;
888 
889 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
890 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
891 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
892 		return 0;
893 	}
894 
895 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
896 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
897 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
898 		mono_w32handle_unref (handle_data);
899 		return 0;
900 	}
901 
902 	ret = ((MonoW32HandleProcess*) handle_data->specific)->pid;
903 
904 	mono_w32handle_unref (handle_data);
905 
906 	return ret;
907 }
908 
909 typedef struct {
910 	guint32 pid;
911 	gpointer handle;
912 } GetProcessForeachData;
913 
914 static gboolean
get_process_foreach_callback(MonoW32Handle * handle_data,gpointer user_data)915 get_process_foreach_callback (MonoW32Handle *handle_data, gpointer user_data)
916 {
917 	GetProcessForeachData *foreach_data;
918 	MonoW32HandleProcess *process_handle;
919 	pid_t pid;
920 
921 	if (handle_data->type != MONO_W32TYPE_PROCESS)
922 		return FALSE;
923 
924 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
925 
926 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: looking at process %d", __func__, process_handle->pid);
927 
928 	pid = process_handle->pid;
929 	if (pid == 0)
930 		return FALSE;
931 
932 	foreach_data = (GetProcessForeachData*) user_data;
933 
934 	/* It's possible to have more than one process handle with the
935 	 * same pid, but only the one running process can be
936 	 * unsignalled. */
937 	if (foreach_data->pid != pid)
938 		return FALSE;
939 	if (mono_w32handle_issignalled (handle_data))
940 		return FALSE;
941 
942 	foreach_data->handle = mono_w32handle_duplicate (handle_data);
943 	return TRUE;
944 }
945 
946 HANDLE
ves_icall_System_Diagnostics_Process_GetProcess_internal(guint32 pid)947 ves_icall_System_Diagnostics_Process_GetProcess_internal (guint32 pid)
948 {
949 	GetProcessForeachData foreach_data;
950 	gpointer handle;
951 
952 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: looking for process %d", __func__, pid);
953 
954 	memset (&foreach_data, 0, sizeof (foreach_data));
955 	foreach_data.pid = pid;
956 	mono_w32handle_foreach (get_process_foreach_callback, &foreach_data);
957 	handle = foreach_data.handle;
958 	if (handle) {
959 		/* get_process_foreach_callback already added a ref */
960 		return handle;
961 	}
962 
963 	if (process_is_alive (pid)) {
964 		/* non-child process */
965 		MonoW32HandleProcess process_handle;
966 
967 		memset (&process_handle, 0, sizeof (process_handle));
968 		process_handle.pid = pid;
969 		process_handle.pname = mono_w32process_get_name (pid);
970 
971 		handle = mono_w32handle_new (MONO_W32TYPE_PROCESS, &process_handle);
972 		if (handle == INVALID_HANDLE_VALUE) {
973 			g_warning ("%s: error creating process handle", __func__);
974 
975 			mono_w32error_set_last (ERROR_OUTOFMEMORY);
976 			return NULL;
977 		}
978 
979 		return handle;
980 	}
981 
982 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find pid %d", __func__, pid);
983 
984 	mono_w32error_set_last (ERROR_PROC_NOT_FOUND);
985 	return NULL;
986 }
987 
988 static gboolean
match_procname_to_modulename(char * procname,char * modulename)989 match_procname_to_modulename (char *procname, char *modulename)
990 {
991 	char* lastsep = NULL;
992 	char* lastsep2 = NULL;
993 	char* pname = NULL;
994 	char* mname = NULL;
995 	gboolean result = FALSE;
996 
997 	if (procname == NULL || modulename == NULL)
998 		return (FALSE);
999 
1000 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: procname=\"%s\", modulename=\"%s\"", __func__, procname, modulename);
1001 	pname = mono_path_resolve_symlinks (procname);
1002 	mname = mono_path_resolve_symlinks (modulename);
1003 
1004 	if (!strcmp (pname, mname))
1005 		result = TRUE;
1006 
1007 	if (!result) {
1008 		lastsep = strrchr (mname, '/');
1009 		if (lastsep)
1010 			if (!strcmp (lastsep+1, pname))
1011 				result = TRUE;
1012 		if (!result) {
1013 			lastsep2 = strrchr (pname, '/');
1014 			if (lastsep2){
1015 				if (lastsep) {
1016 					if (!strcmp (lastsep+1, lastsep2+1))
1017 						result = TRUE;
1018 				} else {
1019 					if (!strcmp (mname, lastsep2+1))
1020 						result = TRUE;
1021 				}
1022 			}
1023 		}
1024 	}
1025 
1026 	g_free (pname);
1027 	g_free (mname);
1028 
1029 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: result is %" G_GINT32_FORMAT, __func__, result);
1030 	return result;
1031 }
1032 
1033 gboolean
mono_w32process_try_get_modules(gpointer handle,gpointer * modules,guint32 size,guint32 * needed)1034 mono_w32process_try_get_modules (gpointer handle, gpointer *modules, guint32 size, guint32 *needed)
1035 {
1036 	MonoW32Handle *handle_data;
1037 	MonoW32HandleProcess *process_handle;
1038 	GSList *mods = NULL, *mods_iter;
1039 	MonoW32ProcessModule *module;
1040 	guint32 count, avail = size / sizeof(gpointer);
1041 	int i;
1042 	pid_t pid;
1043 	char *pname = NULL;
1044 
1045 	/* Store modules in an array of pointers (main module as
1046 	 * modules[0]), using the load address for each module as a
1047 	 * token.  (Use 'NULL' as an alternative for the main module
1048 	 * so that the simple implementation can just return one item
1049 	 * for now.)  Get the info from /proc/<pid>/maps on linux,
1050 	 * /proc/<pid>/map on FreeBSD, other systems will have to
1051 	 * implement /dev/kmem reading or whatever other horrid
1052 	 * technique is needed.
1053 	 */
1054 	if (size < sizeof(gpointer))
1055 		return FALSE;
1056 
1057 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
1058 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
1059 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1060 		return FALSE;
1061 	}
1062 
1063 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
1064 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
1065 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1066 		mono_w32handle_unref (handle_data);
1067 		return FALSE;
1068 	}
1069 
1070 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
1071 
1072 	pid = process_handle->pid;
1073 	pname = g_strdup (process_handle->pname);
1074 
1075 	if (!pname) {
1076 		modules[0] = NULL;
1077 		*needed = sizeof(gpointer);
1078 		mono_w32handle_unref (handle_data);
1079 		return TRUE;
1080 	}
1081 
1082 	mods = mono_w32process_get_modules (pid);
1083 	if (!mods) {
1084 		modules[0] = NULL;
1085 		*needed = sizeof(gpointer);
1086 		g_free (pname);
1087 		mono_w32handle_unref (handle_data);
1088 		return TRUE;
1089 	}
1090 
1091 	count = 0;
1092 
1093 	/*
1094 	 * Use the NULL shortcut, as the first line in
1095 	 * /proc/<pid>/maps isn't the executable, and we need
1096 	 * that first in the returned list. Check the module name
1097 	 * to see if it ends with the proc name and substitute
1098 	 * the first entry with it.  FIXME if this turns out to
1099 	 * be a problem.
1100 	 */
1101 	modules[0] = NULL;
1102 	mods_iter = mods;
1103 	for (i = 0; mods_iter; i++) {
1104 		if (i < avail - 1) {
1105 			module = (MonoW32ProcessModule *)mods_iter->data;
1106 			if (modules[0] != NULL)
1107 				modules[i] = module->address_start;
1108 			else if (match_procname_to_modulename (pname, module->filename))
1109 				modules[0] = module->address_start;
1110 			else
1111 				modules[i + 1] = module->address_start;
1112 		}
1113 		mono_w32process_module_free ((MonoW32ProcessModule *)mods_iter->data);
1114 		mods_iter = g_slist_next (mods_iter);
1115 		count++;
1116 	}
1117 
1118 	/* count + 1 to leave slot 0 for the main module */
1119 	*needed = sizeof(gpointer) * (count + 1);
1120 
1121 	g_slist_free (mods);
1122 	g_free (pname);
1123 	mono_w32handle_unref (handle_data);
1124 	return TRUE;
1125 }
1126 
1127 guint32
mono_w32process_module_get_filename(gpointer handle,gpointer module,gunichar2 * basename,guint32 size)1128 mono_w32process_module_get_filename (gpointer handle, gpointer module, gunichar2 *basename, guint32 size)
1129 {
1130 	gint pid, len;
1131 	gsize bytes;
1132 	gchar *path;
1133 	gunichar2 *proc_path;
1134 
1135 	size *= sizeof (gunichar2); /* adjust for unicode characters */
1136 
1137 	if (basename == NULL || size == 0)
1138 		return 0;
1139 
1140 	pid = mono_w32process_get_pid (handle);
1141 
1142 	path = mono_w32process_get_path (pid);
1143 	if (path == NULL)
1144 		return 0;
1145 
1146 	proc_path = mono_unicode_from_external (path, &bytes);
1147 	g_free (path);
1148 
1149 	if (proc_path == NULL)
1150 		return 0;
1151 
1152 	len = (bytes / 2);
1153 
1154 	/* Add the terminator */
1155 	bytes += 2;
1156 
1157 	if (size < bytes) {
1158 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Size %" G_GUINT32_FORMAT " smaller than needed (%zd); truncating", __func__, size, bytes);
1159 		memcpy (basename, proc_path, size);
1160 	} else {
1161 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Size %" G_GUINT32_FORMAT " larger than needed (%zd)", __func__, size, bytes);
1162 		memcpy (basename, proc_path, bytes);
1163 	}
1164 
1165 	g_free (proc_path);
1166 
1167 	return len;
1168 }
1169 
1170 guint32
mono_w32process_module_get_name(gpointer handle,gpointer module,gunichar2 * basename,guint32 size)1171 mono_w32process_module_get_name (gpointer handle, gpointer module, gunichar2 *basename, guint32 size)
1172 {
1173 	MonoW32Handle *handle_data;
1174 	MonoW32HandleProcess *process_handle;
1175 	pid_t pid;
1176 	gunichar2 *procname;
1177 	char *procname_ext = NULL;
1178 	glong len;
1179 	gsize bytes;
1180 	GSList *mods = NULL, *mods_iter;
1181 	MonoW32ProcessModule *found_module;
1182 	char *pname = NULL;
1183 
1184 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Getting module base name, process handle %p module %p basename %p size %" G_GUINT32_FORMAT,
1185 		   __func__, handle, module, basename, size);
1186 
1187 	size = size * sizeof (gunichar2); /* adjust for unicode characters */
1188 
1189 	if (basename == NULL || size == 0)
1190 		return 0;
1191 
1192 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
1193 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
1194 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1195 		return 0;
1196 	}
1197 
1198 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
1199 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
1200 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1201 		mono_w32handle_unref (handle_data);
1202 		return 0;
1203 	}
1204 
1205 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
1206 
1207 	pid = process_handle->pid;
1208 	pname = g_strdup (process_handle->pname);
1209 
1210 	mods = mono_w32process_get_modules (pid);
1211 	if (!mods && module != NULL) {
1212 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't get modules %p", __func__, handle);
1213 		g_free (pname);
1214 		mono_w32handle_unref (handle_data);
1215 		return 0;
1216 	}
1217 
1218 	/* If module != NULL compare the address.
1219 	 * If module == NULL we are looking for the main module.
1220 	 * The best we can do for now check it the module name end with the process name.
1221 	 */
1222 	for (mods_iter = mods; mods_iter; mods_iter = g_slist_next (mods_iter)) {
1223 		found_module = (MonoW32ProcessModule *)mods_iter->data;
1224 		if (procname_ext == NULL &&
1225 			((module == NULL && match_procname_to_modulename (pname, found_module->filename)) ||
1226 			 (module != NULL && found_module->address_start == module))) {
1227 			procname_ext = g_path_get_basename (found_module->filename);
1228 		}
1229 
1230 		mono_w32process_module_free (found_module);
1231 	}
1232 
1233 	if (procname_ext == NULL) {
1234 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find procname_ext from procmods %p", __func__, handle);
1235 		/* If it's *still* null, we might have hit the
1236 		 * case where reading /proc/$pid/maps gives an
1237 		 * empty file for this user.
1238 		 */
1239 		procname_ext = mono_w32process_get_name (pid);
1240 		if (!procname_ext)
1241 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find procname_ext from proc_get_name %p pid %d", __func__, handle, pid);
1242 	}
1243 
1244 	g_slist_free (mods);
1245 	g_free (pname);
1246 
1247 	if (procname_ext) {
1248 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Process name is [%s]", __func__,
1249 			   procname_ext);
1250 
1251 		procname = mono_unicode_from_external (procname_ext, &bytes);
1252 		if (procname == NULL) {
1253 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't get procname %p", __func__, handle);
1254 			/* bugger */
1255 			g_free (procname_ext);
1256 			mono_w32handle_unref (handle_data);
1257 			return 0;
1258 		}
1259 
1260 		len = (bytes / 2);
1261 
1262 		/* Add the terminator */
1263 		bytes += 2;
1264 
1265 		if (size < bytes) {
1266 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Size %" G_GUINT32_FORMAT " smaller than needed (%zd); truncating", __func__, size, bytes);
1267 
1268 			memcpy (basename, procname, size);
1269 		} else {
1270 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Size %" G_GUINT32_FORMAT " larger than needed (%zd)",
1271 				   __func__, size, bytes);
1272 
1273 			memcpy (basename, procname, bytes);
1274 		}
1275 
1276 		g_free (procname);
1277 		g_free (procname_ext);
1278 
1279 		mono_w32handle_unref (handle_data);
1280 		return len;
1281 	}
1282 
1283 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find procname_ext %p", __func__, handle);
1284 	mono_w32handle_unref (handle_data);
1285 	return 0;
1286 }
1287 
1288 gboolean
mono_w32process_module_get_information(gpointer handle,gpointer module,MODULEINFO * modinfo,guint32 size)1289 mono_w32process_module_get_information (gpointer handle, gpointer module, MODULEINFO *modinfo, guint32 size)
1290 {
1291 	MonoW32Handle *handle_data;
1292 	MonoW32HandleProcess *process_handle;
1293 	pid_t pid;
1294 	GSList *mods = NULL, *mods_iter;
1295 	MonoW32ProcessModule *found_module;
1296 	gboolean ret = FALSE;
1297 	char *pname = NULL;
1298 
1299 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Getting module info, process handle %p module %p",
1300 		   __func__, handle, module);
1301 
1302 	if (modinfo == NULL || size < sizeof (MODULEINFO))
1303 		return FALSE;
1304 
1305 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
1306 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
1307 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1308 		return FALSE;
1309 	}
1310 
1311 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
1312 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
1313 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
1314 		mono_w32handle_unref (handle_data);
1315 		return FALSE;
1316 	}
1317 
1318 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
1319 
1320 	pid = process_handle->pid;
1321 	pname = g_strdup (process_handle->pname);
1322 
1323 	mods = mono_w32process_get_modules (pid);
1324 	if (!mods) {
1325 		g_free (pname);
1326 		mono_w32handle_unref (handle_data);
1327 		return FALSE;
1328 	}
1329 
1330 	/* If module != NULL compare the address.
1331 	 * If module == NULL we are looking for the main module.
1332 	 * The best we can do for now check it the module name end with the process name.
1333 	 */
1334 	for (mods_iter = mods; mods_iter; mods_iter = g_slist_next (mods_iter)) {
1335 			found_module = (MonoW32ProcessModule *)mods_iter->data;
1336 			if (ret == FALSE &&
1337 				((module == NULL && match_procname_to_modulename (pname, found_module->filename)) ||
1338 				 (module != NULL && found_module->address_start == module))) {
1339 				modinfo->lpBaseOfDll = found_module->address_start;
1340 				modinfo->SizeOfImage = (gsize)(found_module->address_end) - (gsize)(found_module->address_start);
1341 				modinfo->EntryPoint = found_module->address_offset;
1342 				ret = TRUE;
1343 			}
1344 
1345 			mono_w32process_module_free (found_module);
1346 	}
1347 
1348 	g_slist_free (mods);
1349 	g_free (pname);
1350 	mono_w32handle_unref (handle_data);
1351 	return ret;
1352 }
1353 
1354 static void
switch_dir_separators(char * path)1355 switch_dir_separators (char *path)
1356 {
1357 	size_t i, pathLength = strlen(path);
1358 
1359 	/* Turn all the slashes round the right way, except for \' */
1360 	/* There are probably other characters that need to be excluded as well. */
1361 	for (i = 0; i < pathLength; i++) {
1362 		if (path[i] == '\\' && i < pathLength - 1 && path[i+1] != '\'' )
1363 			path[i] = '/';
1364 	}
1365 }
1366 
1367 #if HAVE_SIGACTION
1368 
1369 MONO_SIGNAL_HANDLER_FUNC (static, mono_sigchld_signal_handler, (int _dummy, siginfo_t *info, void *context))
1370 {
1371 	/*
1372 	 * Don't want to do any complicated processing here so just wake up the finalizer thread which will call
1373 	 * mono_w32process_signal_finished ().
1374 	 */
1375 	int old_errno = errno;
1376 
1377 	mono_gc_finalize_notify ();
1378 
1379 	errno = old_errno;
1380 }
1381 
1382 static void
process_add_sigchld_handler(void)1383 process_add_sigchld_handler (void)
1384 {
1385 	struct sigaction sa;
1386 
1387 	sa.sa_sigaction = mono_sigchld_signal_handler;
1388 	sigemptyset (&sa.sa_mask);
1389 	sa.sa_flags = SA_NOCLDSTOP | SA_SIGINFO | SA_RESTART;
1390 	g_assert (sigaction (SIGCHLD, &sa, NULL) != -1);
1391 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "Added SIGCHLD handler");
1392 }
1393 
1394 #endif
1395 
1396 /*
1397  * mono_w32process_signal_finished:
1398  *
1399  *   Signal the exit semaphore for processes which have finished.
1400  */
1401 void
mono_w32process_signal_finished(void)1402 mono_w32process_signal_finished (void)
1403 {
1404 	int status;
1405 	int pid;
1406 	Process *process;
1407 
1408 	do {
1409 		do {
1410 			pid = waitpid (-1, &status, WNOHANG);
1411 		} while (pid == -1 && errno == EINTR);
1412 
1413 		if (pid <= 0)
1414 			break;
1415 
1416 		mono_coop_mutex_lock (&processes_mutex);
1417 
1418 		for (process = processes; process; process = process->next) {
1419 			if (process->pid != pid)
1420 				continue;
1421 			if (process->signalled)
1422 				continue;
1423 
1424 			process->signalled = TRUE;
1425 			process->status = status;
1426 			mono_coop_sem_post (&process->exit_sem);
1427 			break;
1428 		}
1429 
1430 		mono_coop_mutex_unlock (&processes_mutex);
1431 	} while (1);
1432 }
1433 
1434 static gboolean
is_readable_or_executable(const char * prog)1435 is_readable_or_executable (const char *prog)
1436 {
1437 	struct stat buf;
1438 	int a = access (prog, R_OK);
1439 	int b = access (prog, X_OK);
1440 	if (a != 0 && b != 0)
1441 		return FALSE;
1442 	if (stat (prog, &buf))
1443 		return FALSE;
1444 	if (S_ISREG (buf.st_mode))
1445 		return TRUE;
1446 	return FALSE;
1447 }
1448 
1449 static gboolean
is_executable(const char * prog)1450 is_executable (const char *prog)
1451 {
1452 	struct stat buf;
1453 	if (access (prog, X_OK) != 0)
1454 		return FALSE;
1455 	if (stat (prog, &buf))
1456 		return FALSE;
1457 	if (S_ISREG (buf.st_mode))
1458 		return TRUE;
1459 	return FALSE;
1460 }
1461 
1462 static gboolean
is_managed_binary(const char * filename)1463 is_managed_binary (const char *filename)
1464 {
1465 	int original_errno = errno;
1466 #if defined(HAVE_LARGE_FILE_SUPPORT) && defined(O_LARGEFILE)
1467 	int file = open (filename, O_RDONLY | O_LARGEFILE);
1468 #else
1469 	int file = open (filename, O_RDONLY);
1470 #endif
1471 	off_t new_offset;
1472 	unsigned char buffer[8];
1473 	off_t file_size, optional_header_offset;
1474 	off_t pe_header_offset, clr_header_offset;
1475 	gboolean managed = FALSE;
1476 	int num_read;
1477 	guint32 first_word, second_word, magic_number;
1478 
1479 	/* If we are unable to open the file, then we definitely
1480 	 * can't say that it is managed. The child mono process
1481 	 * probably wouldn't be able to open it anyway.
1482 	 */
1483 	if (file < 0) {
1484 		errno = original_errno;
1485 		return FALSE;
1486 	}
1487 
1488 	/* Retrieve the length of the file for future sanity checks. */
1489 	file_size = lseek (file, 0, SEEK_END);
1490 	lseek (file, 0, SEEK_SET);
1491 
1492 	/* We know we need to read a header field at offset 60. */
1493 	if (file_size < 64)
1494 		goto leave;
1495 
1496 	num_read = read (file, buffer, 2);
1497 
1498 	if ((num_read != 2) || (buffer[0] != 'M') || (buffer[1] != 'Z'))
1499 		goto leave;
1500 
1501 	new_offset = lseek (file, 60, SEEK_SET);
1502 
1503 	if (new_offset != 60)
1504 		goto leave;
1505 
1506 	num_read = read (file, buffer, 4);
1507 
1508 	if (num_read != 4)
1509 		goto leave;
1510 	pe_header_offset =  buffer[0]
1511 		| (buffer[1] <<  8)
1512 		| (buffer[2] << 16)
1513 		| (buffer[3] << 24);
1514 
1515 	if (pe_header_offset + 24 > file_size)
1516 		goto leave;
1517 
1518 	new_offset = lseek (file, pe_header_offset, SEEK_SET);
1519 
1520 	if (new_offset != pe_header_offset)
1521 		goto leave;
1522 
1523 	num_read = read (file, buffer, 4);
1524 
1525 	if ((num_read != 4) || (buffer[0] != 'P') || (buffer[1] != 'E') || (buffer[2] != 0) || (buffer[3] != 0))
1526 		goto leave;
1527 
1528 	/*
1529 	 * Verify that the header we want in the optional header data
1530 	 * is present in this binary.
1531 	 */
1532 	new_offset = lseek (file, pe_header_offset + 20, SEEK_SET);
1533 
1534 	if (new_offset != pe_header_offset + 20)
1535 		goto leave;
1536 
1537 	num_read = read (file, buffer, 2);
1538 
1539 	if ((num_read != 2) || ((buffer[0] | (buffer[1] << 8)) < 216))
1540 		goto leave;
1541 
1542 	optional_header_offset = pe_header_offset + 24;
1543 
1544 	/* Read the PE magic number */
1545 	new_offset = lseek (file, optional_header_offset, SEEK_SET);
1546 
1547 	if (new_offset != optional_header_offset)
1548 		goto leave;
1549 
1550 	num_read = read (file, buffer, 2);
1551 
1552 	if (num_read != 2)
1553 		goto leave;
1554 
1555 	magic_number = (buffer[0] | (buffer[1] << 8));
1556 
1557 	if (magic_number == 0x10B)  // PE32
1558 		clr_header_offset = 208;
1559 	else if (magic_number == 0x20B)  // PE32+
1560 		clr_header_offset = 224;
1561 	else
1562 		goto leave;
1563 
1564 	/* Read the CLR header address and size fields. These will be
1565 	 * zero if the binary is not managed.
1566 	 */
1567 	new_offset = lseek (file, optional_header_offset + clr_header_offset, SEEK_SET);
1568 
1569 	if (new_offset != optional_header_offset + clr_header_offset)
1570 		goto leave;
1571 
1572 	num_read = read (file, buffer, 8);
1573 
1574 	/* We are not concerned with endianness, only with
1575 	 * whether it is zero or not.
1576 	 */
1577 	first_word = *(guint32 *)&buffer[0];
1578 	second_word = *(guint32 *)&buffer[4];
1579 
1580 	if ((num_read != 8) || (first_word == 0) || (second_word == 0))
1581 		goto leave;
1582 
1583 	managed = TRUE;
1584 
1585 leave:
1586 	close (file);
1587 	errno = original_errno;
1588 	return managed;
1589 }
1590 
1591 static gboolean
process_create(const gunichar2 * appname,const gunichar2 * cmdline,const gunichar2 * cwd,StartupHandles * startup_handles,MonoW32ProcessInfo * process_info)1592 process_create (const gunichar2 *appname, const gunichar2 *cmdline,
1593 	const gunichar2 *cwd, StartupHandles *startup_handles, MonoW32ProcessInfo *process_info)
1594 {
1595 #if defined (HAVE_FORK) && defined (HAVE_EXECVE)
1596 	char *cmd = NULL, *prog = NULL, *full_prog = NULL, *args = NULL, *args_after_prog = NULL;
1597 	char *dir = NULL, **env_strings = NULL, **argv = NULL;
1598 	guint32 i;
1599 	gboolean ret = FALSE;
1600 	gpointer handle = NULL;
1601 	GError *gerr = NULL;
1602 	int in_fd, out_fd, err_fd;
1603 	pid_t pid = 0;
1604 	int startup_pipe [2] = {-1, -1};
1605 	int dummy;
1606 	Process *process;
1607 
1608 #if HAVE_SIGACTION
1609 	mono_lazy_initialize (&process_sig_chld_once, process_add_sigchld_handler);
1610 #endif
1611 
1612 	/* appname and cmdline specify the executable and its args:
1613 	 *
1614 	 * If appname is not NULL, it is the name of the executable.
1615 	 * Otherwise the executable is the first token in cmdline.
1616 	 *
1617 	 * Executable searching:
1618 	 *
1619 	 * If appname is not NULL, it can specify the full path and
1620 	 * file name, or else a partial name and the current directory
1621 	 * will be used.  There is no additional searching.
1622 	 *
1623 	 * If appname is NULL, the first whitespace-delimited token in
1624 	 * cmdline is used.  If the name does not contain a full
1625 	 * directory path, the search sequence is:
1626 	 *
1627 	 * 1) The directory containing the current process
1628 	 * 2) The current working directory
1629 	 * 3) The windows system directory  (Ignored)
1630 	 * 4) The windows directory (Ignored)
1631 	 * 5) $PATH
1632 	 *
1633 	 * Just to make things more interesting, tokens can contain
1634 	 * white space if they are surrounded by quotation marks.  I'm
1635 	 * beginning to understand just why windows apps are generally
1636 	 * so crap, with an API like this :-(
1637 	 */
1638 	if (appname != NULL) {
1639 		cmd = mono_unicode_to_external (appname);
1640 		if (cmd == NULL) {
1641 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unicode conversion returned NULL",
1642 				   __func__);
1643 
1644 			mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
1645 			goto free_strings;
1646 		}
1647 
1648 		switch_dir_separators(cmd);
1649 	}
1650 
1651 	if (cmdline != NULL) {
1652 		args = mono_unicode_to_external (cmdline);
1653 		if (args == NULL) {
1654 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unicode conversion returned NULL", __func__);
1655 
1656 			mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
1657 			goto free_strings;
1658 		}
1659 	}
1660 
1661 	if (cwd != NULL) {
1662 		dir = mono_unicode_to_external (cwd);
1663 		if (dir == NULL) {
1664 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unicode conversion returned NULL", __func__);
1665 
1666 			mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
1667 			goto free_strings;
1668 		}
1669 
1670 		/* Turn all the slashes round the right way */
1671 		switch_dir_separators(dir);
1672 	}
1673 
1674 
1675 	/* We can't put off locating the executable any longer :-( */
1676 	if (cmd != NULL) {
1677 		char *unquoted;
1678 		if (g_ascii_isalpha (cmd[0]) && (cmd[1] == ':')) {
1679 			/* Strip off the drive letter.  I can't
1680 			 * believe that CP/M holdover is still
1681 			 * visible...
1682 			 */
1683 			g_memmove (cmd, cmd+2, strlen (cmd)-2);
1684 			cmd[strlen (cmd)-2] = '\0';
1685 		}
1686 
1687 		unquoted = g_shell_unquote (cmd, NULL);
1688 		if (unquoted[0] == '/') {
1689 			/* Assume full path given */
1690 			prog = g_strdup (unquoted);
1691 
1692 			/* Executable existing ? */
1693 			if (!is_readable_or_executable (prog)) {
1694 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Couldn't find executable %s",
1695 					   __func__, prog);
1696 				g_free (unquoted);
1697 				mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
1698 				goto free_strings;
1699 			}
1700 		} else {
1701 			/* Search for file named by cmd in the current
1702 			 * directory
1703 			 */
1704 			char *curdir = g_get_current_dir ();
1705 
1706 			prog = g_strdup_printf ("%s/%s", curdir, unquoted);
1707 			g_free (curdir);
1708 
1709 			/* And make sure it's readable */
1710 			if (!is_readable_or_executable (prog)) {
1711 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Couldn't find executable %s",
1712 					   __func__, prog);
1713 				g_free (unquoted);
1714 				mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
1715 				goto free_strings;
1716 			}
1717 		}
1718 		g_free (unquoted);
1719 
1720 		args_after_prog = args;
1721 	} else {
1722 		char *token = NULL;
1723 		char quote;
1724 
1725 		/* Dig out the first token from args, taking quotation
1726 		 * marks into account
1727 		 */
1728 
1729 		/* First, strip off all leading whitespace */
1730 		args = g_strchug (args);
1731 
1732 		/* args_after_prog points to the contents of args
1733 		 * after token has been set (otherwise argv[0] is
1734 		 * duplicated)
1735 		 */
1736 		args_after_prog = args;
1737 
1738 		/* Assume the opening quote will always be the first
1739 		 * character
1740 		 */
1741 		if (args[0] == '\"' || args [0] == '\'') {
1742 			quote = args [0];
1743 			for (i = 1; args[i] != '\0' && args[i] != quote; i++);
1744 			if (args [i + 1] == '\0' || g_ascii_isspace (args[i+1])) {
1745 				/* We found the first token */
1746 				token = g_strndup (args+1, i-1);
1747 				args_after_prog = g_strchug (args + i + 1);
1748 			} else {
1749 				/* Quotation mark appeared in the
1750 				 * middle of the token.  Just give the
1751 				 * whole first token, quotes and all,
1752 				 * to exec.
1753 				 */
1754 			}
1755 		}
1756 
1757 		if (token == NULL) {
1758 			/* No quote mark, or malformed */
1759 			for (i = 0; args[i] != '\0'; i++) {
1760 				if (g_ascii_isspace (args[i])) {
1761 					token = g_strndup (args, i);
1762 					args_after_prog = args + i + 1;
1763 					break;
1764 				}
1765 			}
1766 		}
1767 
1768 		if (token == NULL && args[0] != '\0') {
1769 			/* Must be just one token in the string */
1770 			token = g_strdup (args);
1771 			args_after_prog = NULL;
1772 		}
1773 
1774 		if (token == NULL) {
1775 			/* Give up */
1776 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Couldn't find what to exec", __func__);
1777 
1778 			mono_w32error_set_last (ERROR_PATH_NOT_FOUND);
1779 			goto free_strings;
1780 		}
1781 
1782 		/* Turn all the slashes round the right way. Only for
1783 		 * the prg. name
1784 		 */
1785 		switch_dir_separators(token);
1786 
1787 		if (g_ascii_isalpha (token[0]) && (token[1] == ':')) {
1788 			/* Strip off the drive letter.  I can't
1789 			 * believe that CP/M holdover is still
1790 			 * visible...
1791 			 */
1792 			g_memmove (token, token+2, strlen (token)-2);
1793 			token[strlen (token)-2] = '\0';
1794 		}
1795 
1796 		if (token[0] == '/') {
1797 			/* Assume full path given */
1798 			prog = g_strdup (token);
1799 
1800 			/* Executable existing ? */
1801 			if (!is_readable_or_executable (prog)) {
1802 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Couldn't find executable %s",
1803 					   __func__, token);
1804 				g_free (token);
1805 				mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
1806 				goto free_strings;
1807 			}
1808 		} else {
1809 			char *curdir = g_get_current_dir ();
1810 
1811 			/* FIXME: Need to record the directory
1812 			 * containing the current process, and check
1813 			 * that for the new executable as the first
1814 			 * place to look
1815 			 */
1816 
1817 			prog = g_strdup_printf ("%s/%s", curdir, token);
1818 			g_free (curdir);
1819 
1820 			/* I assume X_OK is the criterion to use,
1821 			 * rather than F_OK
1822 			 *
1823 			 * X_OK is too strict *if* the target is a CLR binary
1824 			 */
1825 			if (!is_readable_or_executable (prog)) {
1826 				g_free (prog);
1827 				prog = g_find_program_in_path (token);
1828 				if (prog == NULL) {
1829 					mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Couldn't find executable %s", __func__, token);
1830 
1831 					g_free (token);
1832 					mono_w32error_set_last (ERROR_FILE_NOT_FOUND);
1833 					goto free_strings;
1834 				}
1835 			}
1836 		}
1837 
1838 		g_free (token);
1839 	}
1840 
1841 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Exec prog [%s] args [%s]",
1842 		__func__, prog, args_after_prog);
1843 
1844 	/* Check for CLR binaries; if found, we will try to invoke
1845 	 * them using the same mono binary that started us.
1846 	 */
1847 	if (is_managed_binary (prog)) {
1848 		gunichar2 *newapp, *newcmd;
1849 		gsize bytes_ignored;
1850 
1851 		newapp = mono_unicode_from_external (cli_launcher ? cli_launcher : "mono", &bytes_ignored);
1852 		if (newapp) {
1853 			if (appname)
1854 				newcmd = utf16_concat (utf16_quote, newapp, utf16_quote, utf16_space, appname, utf16_space, cmdline, NULL);
1855 			else
1856 				newcmd = utf16_concat (utf16_quote, newapp, utf16_quote, utf16_space, cmdline, NULL);
1857 
1858 			g_free (newapp);
1859 
1860 			if (newcmd) {
1861 				ret = process_create (NULL, newcmd, cwd, startup_handles, process_info);
1862 
1863 				g_free (newcmd);
1864 
1865 				goto free_strings;
1866 			}
1867 		}
1868 	} else {
1869 		if (!is_executable (prog)) {
1870 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Executable permisson not set on %s", __func__, prog);
1871 			mono_w32error_set_last (ERROR_ACCESS_DENIED);
1872 			goto free_strings;
1873 		}
1874 	}
1875 
1876 	if (args_after_prog != NULL && *args_after_prog) {
1877 		char *qprog;
1878 
1879 		qprog = g_shell_quote (prog);
1880 		full_prog = g_strconcat (qprog, " ", args_after_prog, NULL);
1881 		g_free (qprog);
1882 	} else {
1883 		full_prog = g_shell_quote (prog);
1884 	}
1885 
1886 	ret = g_shell_parse_argv (full_prog, NULL, &argv, &gerr);
1887 	if (ret == FALSE) {
1888 		g_message ("process_create: %s\n", gerr->message);
1889 		g_error_free (gerr);
1890 		gerr = NULL;
1891 		goto free_strings;
1892 	}
1893 
1894 	if (startup_handles) {
1895 		in_fd = GPOINTER_TO_UINT (startup_handles->input);
1896 		out_fd = GPOINTER_TO_UINT (startup_handles->output);
1897 		err_fd = GPOINTER_TO_UINT (startup_handles->error);
1898 	} else {
1899 		in_fd = GPOINTER_TO_UINT (mono_w32file_get_console_input ());
1900 		out_fd = GPOINTER_TO_UINT (mono_w32file_get_console_output ());
1901 		err_fd = GPOINTER_TO_UINT (mono_w32file_get_console_error ());
1902 	}
1903 
1904 	/*
1905 	 * process->env_variables is a an array of MonoString*
1906 	 *
1907 	 * If new_environ is not NULL it specifies the entire set of
1908 	 * environment variables in the new process.  Otherwise the
1909 	 * new process inherits the same environment.
1910 	 */
1911 	if (process_info->env_variables) {
1912 		gint i, str_length, var_length;
1913 		MonoString *var;
1914 		gunichar2 *str;
1915 
1916 		/* +2: one for the process handle value, and the last one is NULL */
1917 		env_strings = g_new0 (gchar*, mono_array_length (process_info->env_variables) + 2);
1918 
1919 		str = NULL;
1920 		str_length = 0;
1921 
1922 		/* Copy each environ string into 'strings' turning it into utf8 (or the requested encoding) at the same time */
1923 		for (i = 0; i < mono_array_length (process_info->env_variables); ++i) {
1924 			var = mono_array_get (process_info->env_variables, MonoString*, i);
1925 			var_length = mono_string_length (var);
1926 
1927 			/* str is a null-terminated copy of var */
1928 
1929 			if (var_length + 1 > str_length) {
1930 				str_length = var_length + 1;
1931 				str = g_renew (gunichar2, str, str_length);
1932 			}
1933 
1934 			memcpy (str, mono_string_chars (var), var_length * sizeof (gunichar2));
1935 			str [var_length] = '\0';
1936 
1937 			env_strings [i] = mono_unicode_to_external (str);
1938 		}
1939 
1940 		g_free (str);
1941 	} else {
1942 		guint32 env_count;
1943 
1944 		env_count = 0;
1945 		for (i = 0; environ[i] != NULL; i++)
1946 			env_count++;
1947 
1948 		/* +2: one for the process handle value, and the last one is NULL */
1949 		env_strings = g_new0 (gchar*, env_count + 2);
1950 
1951 		/* Copy each environ string into 'strings' turning it into utf8 (or the requested encoding) at the same time */
1952 		for (i = 0; i < env_count; i++)
1953 			env_strings [i] = g_strdup (environ[i]);
1954 	}
1955 
1956 	/* Create a pipe to make sure the child doesn't exit before
1957 	 * we can add the process to the linked list of processes */
1958 	if (pipe (startup_pipe) == -1) {
1959 		/* Could not create the pipe to synchroniz process startup. We'll just not synchronize.
1960 		 * This is just for a very hard to hit race condition in the first place */
1961 		startup_pipe [0] = startup_pipe [1] = -1;
1962 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: new process startup not synchronized. We may not notice if the newly created process exits immediately.", __func__);
1963 	}
1964 
1965 	switch (pid = fork ()) {
1966 	case -1: /* Error */ {
1967 		mono_w32error_set_last (ERROR_OUTOFMEMORY);
1968 		ret = FALSE;
1969 		break;
1970 	}
1971 	case 0: /* Child */ {
1972 		if (startup_pipe [0] != -1) {
1973 			/* Wait until the parent has updated it's internal data */
1974 			ssize_t _i G_GNUC_UNUSED = read (startup_pipe [0], &dummy, 1);
1975 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: child: parent has completed its setup", __func__);
1976 			close (startup_pipe [0]);
1977 			close (startup_pipe [1]);
1978 		}
1979 
1980 		/* should we detach from the process group? */
1981 
1982 		/* Connect stdin, stdout and stderr */
1983 		dup2 (in_fd, 0);
1984 		dup2 (out_fd, 1);
1985 		dup2 (err_fd, 2);
1986 
1987 		/* Close all file descriptors */
1988 		for (i = eg_getdtablesize() - 1; i > 2; i--)
1989 			close (i);
1990 
1991 #ifdef DEBUG_ENABLED
1992 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: exec()ing [%s] in dir [%s]", __func__, cmd,
1993 			   dir == NULL?".":dir);
1994 		for (i = 0; argv[i] != NULL; i++)
1995 			g_message ("arg %" G_GUINT32_FORMAT ": [%s]", i, argv[i]);
1996 
1997 		for (i = 0; env_strings[i] != NULL; i++)
1998 			g_message ("env %" G_GUINT32_FORMAT ": [%s]", i, env_strings[i]);
1999 #endif
2000 
2001 		/* set cwd */
2002 		if (dir != NULL && chdir (dir) == -1) {
2003 			/* set error */
2004 			_exit (-1);
2005 		}
2006 
2007 		/* exec */
2008 		execve (argv[0], argv, env_strings);
2009 
2010 		/* set error */
2011 		_exit (-1);
2012 
2013 		break;
2014 	}
2015 	default: /* Parent */ {
2016 		MonoW32Handle *handle_data;
2017 		MonoW32HandleProcess process_handle;
2018 
2019 		memset (&process_handle, 0, sizeof (process_handle));
2020 		process_handle.pid = pid;
2021 		process_handle.child = TRUE;
2022 		process_handle.pname = g_strdup (prog);
2023 		process_set_defaults (&process_handle);
2024 
2025 		/* Add our process into the linked list of processes */
2026 		process = (Process *) g_malloc0 (sizeof (Process));
2027 		process->pid = pid;
2028 		process->handle_count = 1;
2029 		mono_coop_sem_init (&process->exit_sem, 0);
2030 
2031 		process_handle.process = process;
2032 
2033 		handle = mono_w32handle_new (MONO_W32TYPE_PROCESS, &process_handle);
2034 		if (handle == INVALID_HANDLE_VALUE) {
2035 			g_warning ("%s: error creating process handle", __func__);
2036 
2037 			mono_coop_sem_destroy (&process->exit_sem);
2038 			g_free (process);
2039 
2040 			mono_w32error_set_last (ERROR_OUTOFMEMORY);
2041 			ret = FALSE;
2042 			break;
2043 		}
2044 
2045 		if (!mono_w32handle_lookup_and_ref (handle, &handle_data))
2046 			g_error ("%s: unknown handle %p", __func__, handle);
2047 
2048 		if (handle_data->type != MONO_W32TYPE_PROCESS)
2049 			g_error ("%s: unknown process handle %p", __func__, handle);
2050 
2051 		/* Keep the process handle artificially alive until the process
2052 		 * exits so that the information in the handle isn't lost. */
2053 		process->handle = mono_w32handle_duplicate (handle_data);
2054 
2055 		mono_coop_mutex_lock (&processes_mutex);
2056 		process->next = processes;
2057 		mono_memory_barrier ();
2058 		processes = process;
2059 		mono_coop_mutex_unlock (&processes_mutex);
2060 
2061 		if (process_info != NULL) {
2062 			process_info->process_handle = handle;
2063 			process_info->pid = pid;
2064 		}
2065 
2066 		mono_w32handle_unref (handle_data);
2067 
2068 		break;
2069 	}
2070 	}
2071 
2072 	if (startup_pipe [1] != -1) {
2073 		/* Write 1 byte, doesn't matter what */
2074 		ssize_t _i G_GNUC_UNUSED = write (startup_pipe [1], startup_pipe, 1);
2075 		close (startup_pipe [0]);
2076 		close (startup_pipe [1]);
2077 	}
2078 
2079 free_strings:
2080 	if (cmd)
2081 		g_free (cmd);
2082 	if (full_prog)
2083 		g_free (full_prog);
2084 	if (prog)
2085 		g_free (prog);
2086 	if (args)
2087 		g_free (args);
2088 	if (dir)
2089 		g_free (dir);
2090 	if (env_strings)
2091 		g_strfreev (env_strings);
2092 	if (argv)
2093 		g_strfreev (argv);
2094 
2095 	mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: returning handle %p for pid %d", __func__, handle, pid);
2096 
2097 	/* Check if something needs to be cleaned up. */
2098 	processes_cleanup ();
2099 
2100 	return ret;
2101 #else
2102 	mono_w32error_set_last (ERROR_NOT_SUPPORTED);
2103 	return FALSE;
2104 #endif // defined (HAVE_FORK) && defined (HAVE_EXECVE)
2105 }
2106 
2107 MonoBoolean
ves_icall_System_Diagnostics_Process_ShellExecuteEx_internal(MonoW32ProcessStartInfo * proc_start_info,MonoW32ProcessInfo * process_info)2108 ves_icall_System_Diagnostics_Process_ShellExecuteEx_internal (MonoW32ProcessStartInfo *proc_start_info, MonoW32ProcessInfo *process_info)
2109 {
2110 	const gunichar2 *lpFile;
2111 	const gunichar2 *lpParameters;
2112 	const gunichar2 *lpDirectory;
2113 	gunichar2 *args;
2114 	gboolean ret;
2115 	gboolean handler_needswait = FALSE;
2116 
2117 	if (!proc_start_info->filename) {
2118 		/* w2k returns TRUE for this, for some reason. */
2119 		ret = TRUE;
2120 		goto done;
2121 	}
2122 
2123 	lpFile = proc_start_info->filename ? mono_string_chars (proc_start_info->filename) : NULL;
2124 	lpParameters = proc_start_info->arguments ? mono_string_chars (proc_start_info->arguments) : NULL;
2125 	lpDirectory = proc_start_info->working_directory && mono_string_length (proc_start_info->working_directory) != 0 ?
2126 		mono_string_chars (proc_start_info->working_directory) : NULL;
2127 
2128 	/* Put both executable and parameters into the second argument
2129 	 * to process_create (), so it searches $PATH.  The conversion
2130 	 * into and back out of utf8 is because there is no
2131 	 * g_strdup_printf () equivalent for gunichar2 :-(
2132 	 */
2133 	args = utf16_concat (utf16_quote, lpFile, utf16_quote, lpParameters == NULL ? NULL : utf16_space, lpParameters, NULL);
2134 	if (args == NULL) {
2135 		mono_w32error_set_last (ERROR_INVALID_DATA);
2136 		ret = FALSE;
2137 		goto done;
2138 	}
2139 	ret = process_create (NULL, args, lpDirectory, NULL, process_info);
2140 	g_free (args);
2141 
2142 	if (!ret && mono_w32error_get_last () == ERROR_OUTOFMEMORY)
2143 		goto done;
2144 
2145 	if (!ret) {
2146 		static char *handler;
2147 		static gunichar2 *handler_utf16;
2148 
2149 		if (handler_utf16 == (gunichar2 *)-1) {
2150 			ret = FALSE;
2151 			goto done;
2152 		}
2153 
2154 #ifdef HOST_DARWIN
2155 		handler = g_strdup ("/usr/bin/open");
2156 		handler_needswait = TRUE;
2157 #else
2158 		/*
2159 		 * On Linux, try: xdg-open, the FreeDesktop standard way of doing it,
2160 		 * if that fails, try to use gnome-open, then kfmclient
2161 		 */
2162 		handler = g_find_program_in_path ("xdg-open");
2163 		if (handler == NULL){
2164 			handler = g_find_program_in_path ("gnome-open");
2165 			if (handler == NULL){
2166 				handler = g_find_program_in_path ("kfmclient");
2167 				if (handler == NULL){
2168 					handler_utf16 = (gunichar2 *) -1;
2169 					ret = FALSE;
2170 					goto done;
2171 				} else {
2172 					/* kfmclient needs exec argument */
2173 					char *old = handler;
2174 					handler = g_strconcat (old, " exec",
2175 							       NULL);
2176 					g_free (old);
2177 				}
2178 			}
2179 		}
2180 #endif
2181 		handler_utf16 = g_utf8_to_utf16 (handler, -1, NULL, NULL, NULL);
2182 		g_free (handler);
2183 
2184 		/* Put quotes around the filename, in case it's a url
2185 		 * that contains #'s (process_create() calls
2186 		 * g_shell_parse_argv(), which deliberately throws
2187 		 * away anything after an unquoted #).  Fixes bug
2188 		 * 371567.
2189 		 */
2190 		args = utf16_concat (handler_utf16, utf16_space, utf16_quote, lpFile, utf16_quote,
2191 			lpParameters == NULL ? NULL : utf16_space, lpParameters, NULL);
2192 		if (args == NULL) {
2193 			mono_w32error_set_last (ERROR_INVALID_DATA);
2194 			ret = FALSE;
2195 			goto done;
2196 		}
2197 		ret = process_create (NULL, args, lpDirectory, NULL, process_info);
2198 		g_free (args);
2199 		if (!ret) {
2200 			if (mono_w32error_get_last () != ERROR_OUTOFMEMORY)
2201 				mono_w32error_set_last (ERROR_INVALID_DATA);
2202 			ret = FALSE;
2203 			goto done;
2204 		}
2205 
2206 		if (handler_needswait) {
2207 			gint32 exitcode;
2208 			MonoW32HandleWaitRet waitret;
2209 			waitret = process_wait (process_info->process_handle, MONO_INFINITE_WAIT, NULL);
2210 			ves_icall_Microsoft_Win32_NativeMethods_GetExitCodeProcess (process_info->process_handle, &exitcode);
2211 			if (exitcode != 0)
2212 				ret = FALSE;
2213 		}
2214 		/* Shell exec should not return a process handle when it spawned a GUI thing, like a browser. */
2215 		mono_w32handle_close (process_info->process_handle);
2216 		process_info->process_handle = INVALID_HANDLE_VALUE;
2217 	}
2218 
2219 done:
2220 	if (ret == FALSE) {
2221 		process_info->pid = -mono_w32error_get_last ();
2222 	} else {
2223 #if !defined(MONO_CROSS_COMPILE)
2224 		process_info->pid = mono_w32process_get_pid (process_info->process_handle);
2225 #else
2226 		process_info->pid = 0;
2227 #endif
2228 	}
2229 
2230 	return ret;
2231 }
2232 
2233 /* Only used when UseShellExecute is false */
2234 static gboolean
process_get_complete_path(const gunichar2 * appname,gchar ** completed)2235 process_get_complete_path (const gunichar2 *appname, gchar **completed)
2236 {
2237 	gchar *utf8app;
2238 	gchar *found;
2239 
2240 	utf8app = g_utf16_to_utf8 (appname, -1, NULL, NULL, NULL);
2241 
2242 	if (g_path_is_absolute (utf8app)) {
2243 		*completed = g_shell_quote (utf8app);
2244 		g_free (utf8app);
2245 		return TRUE;
2246 	}
2247 
2248 	if (g_file_test (utf8app, G_FILE_TEST_IS_EXECUTABLE) && !g_file_test (utf8app, G_FILE_TEST_IS_DIR)) {
2249 		*completed = g_shell_quote (utf8app);
2250 		g_free (utf8app);
2251 		return TRUE;
2252 	}
2253 
2254 	found = g_find_program_in_path (utf8app);
2255 	if (found == NULL) {
2256 		*completed = NULL;
2257 		g_free (utf8app);
2258 		return FALSE;
2259 	}
2260 
2261 	*completed = g_shell_quote (found);
2262 	g_free (found);
2263 	g_free (utf8app);
2264 	return TRUE;
2265 }
2266 
2267 static gboolean
process_get_shell_arguments(MonoW32ProcessStartInfo * proc_start_info,gunichar2 ** shell_path)2268 process_get_shell_arguments (MonoW32ProcessStartInfo *proc_start_info, gunichar2 **shell_path)
2269 {
2270 	gchar *complete_path = NULL;
2271 
2272 	*shell_path = NULL;
2273 
2274 	if (process_get_complete_path (mono_string_chars (proc_start_info->filename), &complete_path)) {
2275 		*shell_path = g_utf8_to_utf16 (complete_path, -1, NULL, NULL, NULL);
2276 		g_free (complete_path);
2277 	}
2278 
2279 	return *shell_path != NULL;
2280 }
2281 
2282 MonoBoolean
ves_icall_System_Diagnostics_Process_CreateProcess_internal(MonoW32ProcessStartInfo * proc_start_info,HANDLE stdin_handle,HANDLE stdout_handle,HANDLE stderr_handle,MonoW32ProcessInfo * process_info)2283 ves_icall_System_Diagnostics_Process_CreateProcess_internal (MonoW32ProcessStartInfo *proc_start_info,
2284 	HANDLE stdin_handle, HANDLE stdout_handle, HANDLE stderr_handle, MonoW32ProcessInfo *process_info)
2285 {
2286 	gboolean ret;
2287 	gunichar2 *dir;
2288 	StartupHandles startup_handles;
2289 	gunichar2 *shell_path = NULL;
2290 	gunichar2 *args = NULL;
2291 
2292 	memset (&startup_handles, 0, sizeof (startup_handles));
2293 	startup_handles.input = stdin_handle;
2294 	startup_handles.output = stdout_handle;
2295 	startup_handles.error = stderr_handle;
2296 
2297 	if (!process_get_shell_arguments (proc_start_info, &shell_path)) {
2298 		process_info->pid = -ERROR_FILE_NOT_FOUND;
2299 		return FALSE;
2300 	}
2301 
2302 	args = proc_start_info->arguments && mono_string_length (proc_start_info->arguments) > 0 ?
2303 			mono_string_chars (proc_start_info->arguments): NULL;
2304 
2305 	/* The default dir name is "".  Turn that into NULL to mean "current directory" */
2306 	dir = proc_start_info->working_directory && mono_string_length (proc_start_info->working_directory) > 0 ?
2307 			mono_string_chars (proc_start_info->working_directory) : NULL;
2308 
2309 	ret = process_create (shell_path, args, dir, &startup_handles, process_info);
2310 
2311 	if (shell_path != NULL)
2312 		g_free (shell_path);
2313 
2314 	if (!ret)
2315 		process_info->pid = -mono_w32error_get_last ();
2316 
2317 	return ret;
2318 }
2319 
2320 /* Returns an array of pids */
2321 MonoArray *
ves_icall_System_Diagnostics_Process_GetProcesses_internal(void)2322 ves_icall_System_Diagnostics_Process_GetProcesses_internal (void)
2323 {
2324 	MonoError error;
2325 	MonoArray *procs;
2326 	gpointer *pidarray;
2327 	int i, count;
2328 
2329 	pidarray = mono_process_list (&count);
2330 	if (!pidarray) {
2331 		mono_set_pending_exception (mono_get_exception_not_supported ("This system does not support EnumProcesses"));
2332 		return NULL;
2333 	}
2334 	procs = mono_array_new_checked (mono_domain_get (), mono_get_int32_class (), count, &error);
2335 	if (mono_error_set_pending_exception (&error)) {
2336 		g_free (pidarray);
2337 		return NULL;
2338 	}
2339 	if (sizeof (guint32) == sizeof (gpointer)) {
2340 		memcpy (mono_array_addr (procs, guint32, 0), pidarray, count * sizeof (gint32));
2341 	} else {
2342 		for (i = 0; i < count; ++i)
2343 			*(mono_array_addr (procs, guint32, i)) = GPOINTER_TO_UINT (pidarray [i]);
2344 	}
2345 	g_free (pidarray);
2346 
2347 	return procs;
2348 }
2349 
2350 void
mono_w32process_set_cli_launcher(gchar * path)2351 mono_w32process_set_cli_launcher (gchar *path)
2352 {
2353 	g_free (cli_launcher);
2354 	cli_launcher = g_strdup (path);
2355 }
2356 
2357 gpointer
ves_icall_Microsoft_Win32_NativeMethods_GetCurrentProcess(void)2358 ves_icall_Microsoft_Win32_NativeMethods_GetCurrentProcess (void)
2359 {
2360 	return current_process;
2361 }
2362 
2363 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_GetExitCodeProcess(gpointer handle,gint32 * exitcode)2364 ves_icall_Microsoft_Win32_NativeMethods_GetExitCodeProcess (gpointer handle, gint32 *exitcode)
2365 {
2366 	MonoW32Handle *handle_data;
2367 	MonoW32HandleProcess *process_handle;
2368 
2369 	if (!exitcode)
2370 		return FALSE;
2371 
2372 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2373 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2374 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2375 		return FALSE;
2376 	}
2377 
2378 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2379 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2380 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2381 		mono_w32handle_unref (handle_data);
2382 		return FALSE;
2383 	}
2384 
2385 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
2386 
2387 	if (process_handle->pid == current_pid) {
2388 		*exitcode = STILL_ACTIVE;
2389 		mono_w32handle_unref (handle_data);
2390 		return TRUE;
2391 	}
2392 
2393 	/* A process handle is only signalled if the process has exited
2394 	 * and has been waited for. Make sure any process exit has been
2395 	 * noticed before checking if the process is signalled.
2396 	 * Fixes bug 325463. */
2397 	mono_w32handle_wait_one (handle, 0, TRUE);
2398 
2399 	*exitcode = mono_w32handle_issignalled (handle_data) ? process_handle->exitstatus : STILL_ACTIVE;
2400 
2401 	mono_w32handle_unref (handle_data);
2402 
2403 	return TRUE;
2404 }
2405 
2406 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_CloseProcess(gpointer handle)2407 ves_icall_Microsoft_Win32_NativeMethods_CloseProcess (gpointer handle)
2408 {
2409 	return mono_w32handle_close (handle);
2410 }
2411 
2412 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_TerminateProcess(gpointer handle,gint32 exitcode)2413 ves_icall_Microsoft_Win32_NativeMethods_TerminateProcess (gpointer handle, gint32 exitcode)
2414 {
2415 #ifdef HAVE_KILL
2416 	MonoW32Handle *handle_data;
2417 	int ret;
2418 	pid_t pid;
2419 
2420 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2421 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2422 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2423 		return FALSE;
2424 	}
2425 
2426 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2427 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2428 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2429 		mono_w32handle_unref (handle_data);
2430 		return FALSE;
2431 	}
2432 
2433 	pid = ((MonoW32HandleProcess*) handle_data->specific)->pid;
2434 
2435 	ret = kill (pid, exitcode == -1 ? SIGKILL : SIGTERM);
2436 	if (ret == 0) {
2437 		mono_w32handle_unref (handle_data);
2438 		return TRUE;
2439 	}
2440 
2441 	switch (errno) {
2442 	case EINVAL: mono_w32error_set_last (ERROR_INVALID_PARAMETER); break;
2443 	case EPERM:  mono_w32error_set_last (ERROR_ACCESS_DENIED);     break;
2444 	case ESRCH:  mono_w32error_set_last (ERROR_PROC_NOT_FOUND);    break;
2445 	default:     mono_w32error_set_last (ERROR_GEN_FAILURE);       break;
2446 	}
2447 
2448 	mono_w32handle_unref (handle_data);
2449 	return FALSE;
2450 #else
2451 	g_error ("kill() is not supported by this platform");
2452 #endif
2453 }
2454 
2455 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_GetProcessWorkingSetSize(gpointer handle,gsize * min,gsize * max)2456 ves_icall_Microsoft_Win32_NativeMethods_GetProcessWorkingSetSize (gpointer handle, gsize *min, gsize *max)
2457 {
2458 	MonoW32Handle *handle_data;
2459 	MonoW32HandleProcess *process_handle;
2460 
2461 	if (!min || !max)
2462 		return FALSE;
2463 
2464 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2465 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2466 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2467 		return FALSE;
2468 	}
2469 
2470 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2471 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2472 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2473 		mono_w32handle_unref (handle_data);
2474 		return FALSE;
2475 	}
2476 
2477 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
2478 
2479 	if (!process_handle->child) {
2480 		mono_w32handle_unref (handle_data);
2481 		return FALSE;
2482 	}
2483 
2484 	*min = process_handle->min_working_set;
2485 	*max = process_handle->max_working_set;
2486 
2487 	mono_w32handle_unref (handle_data);
2488 	return TRUE;
2489 }
2490 
2491 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_SetProcessWorkingSetSize(gpointer handle,gsize min,gsize max)2492 ves_icall_Microsoft_Win32_NativeMethods_SetProcessWorkingSetSize (gpointer handle, gsize min, gsize max)
2493 {
2494 	MonoW32Handle *handle_data;
2495 	MonoW32HandleProcess *process_handle;
2496 
2497 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2498 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2499 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2500 		return FALSE;
2501 	}
2502 
2503 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2504 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2505 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2506 		mono_w32handle_unref (handle_data);
2507 		return FALSE;
2508 	}
2509 
2510 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
2511 
2512 	if (!process_handle->child) {
2513 		mono_w32handle_unref (handle_data);
2514 		return FALSE;
2515 	}
2516 
2517 	process_handle->min_working_set = min;
2518 	process_handle->max_working_set = max;
2519 
2520 	mono_w32handle_unref (handle_data);
2521 	return TRUE;
2522 }
2523 
2524 gint32
ves_icall_Microsoft_Win32_NativeMethods_GetPriorityClass(gpointer handle)2525 ves_icall_Microsoft_Win32_NativeMethods_GetPriorityClass (gpointer handle)
2526 {
2527 #ifdef HAVE_GETPRIORITY
2528 	MonoW32Handle *handle_data;
2529 	gint res;
2530 	gint32 ret;
2531 	pid_t pid;
2532 
2533 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2534 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2535 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2536 		return 0;
2537 	}
2538 
2539 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2540 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2541 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2542 		mono_w32handle_unref (handle_data);
2543 		return 0;
2544 	}
2545 
2546 	pid = ((MonoW32HandleProcess*) handle_data->specific)->pid;
2547 
2548 	errno = 0;
2549 	res = getpriority (PRIO_PROCESS, pid);
2550 	if (res == -1 && errno != 0) {
2551 		switch (errno) {
2552 		case EPERM:
2553 		case EACCES:
2554 			mono_w32error_set_last (ERROR_ACCESS_DENIED);
2555 			break;
2556 		case ESRCH:
2557 			mono_w32error_set_last (ERROR_PROC_NOT_FOUND);
2558 			break;
2559 		default:
2560 			mono_w32error_set_last (ERROR_GEN_FAILURE);
2561 		}
2562 
2563 		mono_w32handle_unref (handle_data);
2564 		return 0;
2565 	}
2566 
2567 	if (res == 0)
2568 		ret = MONO_W32PROCESS_PRIORITY_CLASS_NORMAL;
2569 	else if (res < -15)
2570 		ret = MONO_W32PROCESS_PRIORITY_CLASS_REALTIME;
2571 	else if (res < -10)
2572 		ret = MONO_W32PROCESS_PRIORITY_CLASS_HIGH;
2573 	else if (res < 0)
2574 		ret = MONO_W32PROCESS_PRIORITY_CLASS_ABOVE_NORMAL;
2575 	else if (res > 10)
2576 		ret = MONO_W32PROCESS_PRIORITY_CLASS_IDLE;
2577 	else if (res > 0)
2578 		ret = MONO_W32PROCESS_PRIORITY_CLASS_BELOW_NORMAL;
2579 	else
2580 		ret = MONO_W32PROCESS_PRIORITY_CLASS_NORMAL;
2581 
2582 	mono_w32handle_unref (handle_data);
2583 	return ret;
2584 #else
2585 	mono_w32error_set_last (ERROR_NOT_SUPPORTED);
2586 	return 0;
2587 #endif
2588 }
2589 
2590 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_SetPriorityClass(gpointer handle,gint32 priorityClass)2591 ves_icall_Microsoft_Win32_NativeMethods_SetPriorityClass (gpointer handle, gint32 priorityClass)
2592 {
2593 #ifdef HAVE_SETPRIORITY
2594 	MonoW32Handle *handle_data;
2595 	int ret;
2596 	int prio;
2597 	pid_t pid;
2598 
2599 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2600 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2601 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2602 		return FALSE;
2603 	}
2604 
2605 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2606 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2607 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2608 		mono_w32handle_unref (handle_data);
2609 		return FALSE;
2610 	}
2611 
2612 	pid = ((MonoW32HandleProcess*) handle_data->specific)->pid;
2613 
2614 	switch (priorityClass) {
2615 	case MONO_W32PROCESS_PRIORITY_CLASS_IDLE:
2616 		prio = 19;
2617 		break;
2618 	case MONO_W32PROCESS_PRIORITY_CLASS_BELOW_NORMAL:
2619 		prio = 10;
2620 		break;
2621 	case MONO_W32PROCESS_PRIORITY_CLASS_NORMAL:
2622 		prio = 0;
2623 		break;
2624 	case MONO_W32PROCESS_PRIORITY_CLASS_ABOVE_NORMAL:
2625 		prio = -5;
2626 		break;
2627 	case MONO_W32PROCESS_PRIORITY_CLASS_HIGH:
2628 		prio = -11;
2629 		break;
2630 	case MONO_W32PROCESS_PRIORITY_CLASS_REALTIME:
2631 		prio = -20;
2632 		break;
2633 	default:
2634 		mono_w32error_set_last (ERROR_INVALID_PARAMETER);
2635 		mono_w32handle_unref (handle_data);
2636 		return FALSE;
2637 	}
2638 
2639 	ret = setpriority (PRIO_PROCESS, pid, prio);
2640 	if (ret == -1) {
2641 		switch (errno) {
2642 		case EPERM:
2643 		case EACCES:
2644 			mono_w32error_set_last (ERROR_ACCESS_DENIED);
2645 			break;
2646 		case ESRCH:
2647 			mono_w32error_set_last (ERROR_PROC_NOT_FOUND);
2648 			break;
2649 		default:
2650 			mono_w32error_set_last (ERROR_GEN_FAILURE);
2651 		}
2652 	}
2653 
2654 	mono_w32handle_unref (handle_data);
2655 	return ret == 0;
2656 #else
2657 	mono_w32error_set_last (ERROR_NOT_SUPPORTED);
2658 	return FALSE;
2659 #endif
2660 }
2661 
2662 static void
ticks_to_processtime(guint64 ticks,ProcessTime * processtime)2663 ticks_to_processtime (guint64 ticks, ProcessTime *processtime)
2664 {
2665 	processtime->lowDateTime = ticks & 0xFFFFFFFF;
2666 	processtime->highDateTime = ticks >> 32;
2667 }
2668 
2669 MonoBoolean
ves_icall_Microsoft_Win32_NativeMethods_GetProcessTimes(gpointer handle,gint64 * creation_time,gint64 * exit_time,gint64 * kernel_time,gint64 * user_time)2670 ves_icall_Microsoft_Win32_NativeMethods_GetProcessTimes (gpointer handle, gint64 *creation_time, gint64 *exit_time, gint64 *kernel_time, gint64 *user_time)
2671 {
2672 	MonoW32Handle *handle_data;
2673 	MonoW32HandleProcess *process_handle;
2674 	ProcessTime *creation_processtime, *exit_processtime, *kernel_processtime, *user_processtime;
2675 
2676 	if (!creation_time || !exit_time || !kernel_time || !user_time) {
2677 		/* Not sure if w32 allows NULLs here or not */
2678 		return FALSE;
2679 	}
2680 
2681 	creation_processtime = (ProcessTime*) creation_time;
2682 	exit_processtime = (ProcessTime*) exit_time;
2683 	kernel_processtime = (ProcessTime*) kernel_time;
2684 	user_processtime = (ProcessTime*) user_time;
2685 
2686 	memset (creation_processtime, 0, sizeof (ProcessTime));
2687 	memset (exit_processtime, 0, sizeof (ProcessTime));
2688 	memset (kernel_processtime, 0, sizeof (ProcessTime));
2689 	memset (user_processtime, 0, sizeof (ProcessTime));
2690 
2691 	if (!mono_w32handle_lookup_and_ref (handle, &handle_data)) {
2692 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown handle %p", __func__, handle);
2693 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2694 		return FALSE;
2695 	}
2696 
2697 	if (handle_data->type != MONO_W32TYPE_PROCESS) {
2698 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unknown process handle %p", __func__, handle);
2699 		mono_w32error_set_last (ERROR_INVALID_HANDLE);
2700 		mono_w32handle_unref (handle_data);
2701 		return FALSE;
2702 	}
2703 
2704 	process_handle = (MonoW32HandleProcess*) handle_data->specific;
2705 
2706 	if (!process_handle->child) {
2707 		gint64 start_ticks, user_ticks, kernel_ticks;
2708 
2709 		mono_process_get_times (GINT_TO_POINTER (process_handle->pid),
2710 			&start_ticks, &user_ticks, &kernel_ticks);
2711 
2712 		ticks_to_processtime (start_ticks, creation_processtime);
2713 		ticks_to_processtime (kernel_ticks, kernel_processtime);
2714 		ticks_to_processtime (user_ticks, user_processtime);
2715 
2716 		mono_w32handle_unref (handle_data);
2717 		return TRUE;
2718 	}
2719 
2720 	ticks_to_processtime (process_handle->create_time, creation_processtime);
2721 
2722 	/* A process handle is only signalled if the process has
2723 	 * exited, otherwise exit_processtime isn't set */
2724 	if (mono_w32handle_issignalled (handle_data))
2725 		ticks_to_processtime (process_handle->exit_time, exit_processtime);
2726 
2727 #ifdef HAVE_GETRUSAGE
2728 	if (process_handle->pid == getpid ()) {
2729 		struct rusage time_data;
2730 		if (getrusage (RUSAGE_SELF, &time_data) == 0) {
2731 			ticks_to_processtime ((guint64)time_data.ru_utime.tv_sec * 10000000 + (guint64)time_data.ru_utime.tv_usec * 10, user_processtime);
2732 			ticks_to_processtime ((guint64)time_data.ru_stime.tv_sec * 10000000 + (guint64)time_data.ru_stime.tv_usec * 10, kernel_processtime);
2733 		}
2734 	}
2735 #endif
2736 
2737 	mono_w32handle_unref (handle_data);
2738 	return TRUE;
2739 }
2740 
2741 static IMAGE_SECTION_HEADER *
get_enclosing_section_header(guint32 rva,IMAGE_NT_HEADERS32 * nt_headers)2742 get_enclosing_section_header (guint32 rva, IMAGE_NT_HEADERS32 *nt_headers)
2743 {
2744 	IMAGE_SECTION_HEADER *section = IMAGE_FIRST_SECTION32 (nt_headers);
2745 	guint32 i;
2746 
2747 	for (i = 0; i < GUINT16_FROM_LE (nt_headers->FileHeader.NumberOfSections); i++, section++) {
2748 		guint32 size = GUINT32_FROM_LE (section->Misc.VirtualSize);
2749 		if (size == 0) {
2750 			size = GUINT32_FROM_LE (section->SizeOfRawData);
2751 		}
2752 
2753 		if ((rva >= GUINT32_FROM_LE (section->VirtualAddress)) &&
2754 		    (rva < (GUINT32_FROM_LE (section->VirtualAddress) + size))) {
2755 			return(section);
2756 		}
2757 	}
2758 
2759 	return(NULL);
2760 }
2761 
2762 /* This works for both 32bit and 64bit files, as the differences are
2763  * all after the section header block
2764  */
2765 static gpointer
get_ptr_from_rva(guint32 rva,IMAGE_NT_HEADERS32 * ntheaders,gpointer file_map)2766 get_ptr_from_rva (guint32 rva, IMAGE_NT_HEADERS32 *ntheaders, gpointer file_map)
2767 {
2768 	IMAGE_SECTION_HEADER *section_header;
2769 	guint32 delta;
2770 
2771 	section_header = get_enclosing_section_header (rva, ntheaders);
2772 	if (section_header == NULL) {
2773 		return(NULL);
2774 	}
2775 
2776 	delta = (guint32)(GUINT32_FROM_LE (section_header->VirtualAddress) -
2777 			  GUINT32_FROM_LE (section_header->PointerToRawData));
2778 
2779 	return((guint8 *)file_map + rva - delta);
2780 }
2781 
2782 static gpointer
scan_resource_dir(IMAGE_RESOURCE_DIRECTORY * root,IMAGE_NT_HEADERS32 * nt_headers,gpointer file_map,IMAGE_RESOURCE_DIRECTORY_ENTRY * entry,int level,guint32 res_id,guint32 lang_id,gsize * size)2783 scan_resource_dir (IMAGE_RESOURCE_DIRECTORY *root, IMAGE_NT_HEADERS32 *nt_headers, gpointer file_map,
2784 	IMAGE_RESOURCE_DIRECTORY_ENTRY *entry, int level, guint32 res_id, guint32 lang_id, gsize *size)
2785 {
2786 	IMAGE_RESOURCE_DIRECTORY_ENTRY swapped_entry;
2787 	gboolean is_string, is_dir;
2788 	guint32 name_offset, dir_offset, data_offset;
2789 
2790 	swapped_entry.Name = GUINT32_FROM_LE (entry->Name);
2791 	swapped_entry.OffsetToData = GUINT32_FROM_LE (entry->OffsetToData);
2792 
2793 	is_string = swapped_entry.NameIsString;
2794 	is_dir = swapped_entry.DataIsDirectory;
2795 	name_offset = swapped_entry.NameOffset;
2796 	dir_offset = swapped_entry.OffsetToDirectory;
2797 	data_offset = swapped_entry.OffsetToData;
2798 
2799 	if (level == 0) {
2800 		/* Normally holds a directory entry for each type of
2801 		 * resource
2802 		 */
2803 		if ((is_string == FALSE &&
2804 		     name_offset != res_id) ||
2805 		    (is_string == TRUE)) {
2806 			return(NULL);
2807 		}
2808 	} else if (level == 1) {
2809 		/* Normally holds a directory entry for each resource
2810 		 * item
2811 		 */
2812 	} else if (level == 2) {
2813 		/* Normally holds a directory entry for each language
2814 		 */
2815 		if ((is_string == FALSE &&
2816 		     name_offset != lang_id &&
2817 		     lang_id != 0) ||
2818 		    (is_string == TRUE)) {
2819 			return(NULL);
2820 		}
2821 	} else {
2822 		g_assert_not_reached ();
2823 	}
2824 
2825 	if (is_dir == TRUE) {
2826 		IMAGE_RESOURCE_DIRECTORY *res_dir = (IMAGE_RESOURCE_DIRECTORY *)((guint8 *)root + dir_offset);
2827 		IMAGE_RESOURCE_DIRECTORY_ENTRY *sub_entries = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(res_dir + 1);
2828 		guint32 entries, i;
2829 
2830 		entries = GUINT16_FROM_LE (res_dir->NumberOfNamedEntries) + GUINT16_FROM_LE (res_dir->NumberOfIdEntries);
2831 
2832 		for (i = 0; i < entries; i++) {
2833 			IMAGE_RESOURCE_DIRECTORY_ENTRY *sub_entry = &sub_entries[i];
2834 			gpointer ret;
2835 
2836 			ret = scan_resource_dir (root, nt_headers, file_map,
2837 						 sub_entry, level + 1, res_id,
2838 						 lang_id, size);
2839 			if (ret != NULL) {
2840 				return(ret);
2841 			}
2842 		}
2843 
2844 		return(NULL);
2845 	} else {
2846 		IMAGE_RESOURCE_DATA_ENTRY *data_entry = (IMAGE_RESOURCE_DATA_ENTRY *)((guint8 *)root + data_offset);
2847 		*size = GUINT32_FROM_LE (data_entry->Size);
2848 
2849 		return(get_ptr_from_rva (GUINT32_FROM_LE (data_entry->OffsetToData), nt_headers, file_map));
2850 	}
2851 }
2852 
2853 static gpointer
find_pe_file_resources32(gpointer file_map,guint32 map_size,guint32 res_id,guint32 lang_id,gsize * size)2854 find_pe_file_resources32 (gpointer file_map, guint32 map_size, guint32 res_id, guint32 lang_id, gsize *size)
2855 {
2856 	IMAGE_DOS_HEADER *dos_header;
2857 	IMAGE_NT_HEADERS32 *nt_headers;
2858 	IMAGE_RESOURCE_DIRECTORY *resource_dir;
2859 	IMAGE_RESOURCE_DIRECTORY_ENTRY *resource_dir_entry;
2860 	guint32 resource_rva, entries, i;
2861 	gpointer ret = NULL;
2862 
2863 	dos_header = (IMAGE_DOS_HEADER *)file_map;
2864 	if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) {
2865 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Bad dos signature 0x%x", __func__, dos_header->e_magic);
2866 
2867 		mono_w32error_set_last (ERROR_INVALID_DATA);
2868 		return(NULL);
2869 	}
2870 
2871 	if (map_size < sizeof(IMAGE_NT_HEADERS32) + GUINT32_FROM_LE (dos_header->e_lfanew)) {
2872 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: File is too small: %" G_GUINT32_FORMAT, __func__, map_size);
2873 
2874 		mono_w32error_set_last (ERROR_BAD_LENGTH);
2875 		return(NULL);
2876 	}
2877 
2878 	nt_headers = (IMAGE_NT_HEADERS32 *)((guint8 *)file_map + GUINT32_FROM_LE (dos_header->e_lfanew));
2879 	if (nt_headers->Signature != IMAGE_NT_SIGNATURE) {
2880 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Bad NT signature 0x%x", __func__, nt_headers->Signature);
2881 
2882 		mono_w32error_set_last (ERROR_INVALID_DATA);
2883 		return(NULL);
2884 	}
2885 
2886 	if (nt_headers->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
2887 		/* Do 64-bit stuff */
2888 		resource_rva = GUINT32_FROM_LE (((IMAGE_NT_HEADERS64 *)nt_headers)->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
2889 	} else {
2890 		resource_rva = GUINT32_FROM_LE (nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
2891 	}
2892 
2893 	if (resource_rva == 0) {
2894 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: No resources in file!", __func__);
2895 
2896 		mono_w32error_set_last (ERROR_INVALID_DATA);
2897 		return(NULL);
2898 	}
2899 
2900 	resource_dir = (IMAGE_RESOURCE_DIRECTORY *)get_ptr_from_rva (resource_rva, (IMAGE_NT_HEADERS32 *)nt_headers, file_map);
2901 	if (resource_dir == NULL) {
2902 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find resource directory", __func__);
2903 
2904 		mono_w32error_set_last (ERROR_INVALID_DATA);
2905 		return(NULL);
2906 	}
2907 
2908 	entries = GUINT16_FROM_LE (resource_dir->NumberOfNamedEntries) + GUINT16_FROM_LE (resource_dir->NumberOfIdEntries);
2909 	resource_dir_entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(resource_dir + 1);
2910 
2911 	for (i = 0; i < entries; i++) {
2912 		IMAGE_RESOURCE_DIRECTORY_ENTRY *direntry = &resource_dir_entry[i];
2913 		ret = scan_resource_dir (resource_dir,
2914 					 (IMAGE_NT_HEADERS32 *)nt_headers,
2915 					 file_map, direntry, 0, res_id,
2916 					 lang_id, size);
2917 		if (ret != NULL) {
2918 			return(ret);
2919 		}
2920 	}
2921 
2922 	return(NULL);
2923 }
2924 
2925 static gpointer
find_pe_file_resources64(gpointer file_map,guint32 map_size,guint32 res_id,guint32 lang_id,gsize * size)2926 find_pe_file_resources64 (gpointer file_map, guint32 map_size, guint32 res_id, guint32 lang_id, gsize *size)
2927 {
2928 	IMAGE_DOS_HEADER *dos_header;
2929 	IMAGE_NT_HEADERS64 *nt_headers;
2930 	IMAGE_RESOURCE_DIRECTORY *resource_dir;
2931 	IMAGE_RESOURCE_DIRECTORY_ENTRY *resource_dir_entry;
2932 	guint32 resource_rva, entries, i;
2933 	gpointer ret = NULL;
2934 
2935 	dos_header = (IMAGE_DOS_HEADER *)file_map;
2936 	if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) {
2937 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Bad dos signature 0x%x", __func__, dos_header->e_magic);
2938 
2939 		mono_w32error_set_last (ERROR_INVALID_DATA);
2940 		return(NULL);
2941 	}
2942 
2943 	if (map_size < sizeof(IMAGE_NT_HEADERS64) + GUINT32_FROM_LE (dos_header->e_lfanew)) {
2944 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: File is too small: %" G_GUINT32_FORMAT, __func__, map_size);
2945 
2946 		mono_w32error_set_last (ERROR_BAD_LENGTH);
2947 		return(NULL);
2948 	}
2949 
2950 	nt_headers = (IMAGE_NT_HEADERS64 *)((guint8 *)file_map + GUINT32_FROM_LE (dos_header->e_lfanew));
2951 	if (nt_headers->Signature != IMAGE_NT_SIGNATURE) {
2952 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Bad NT signature 0x%x", __func__,
2953 			   nt_headers->Signature);
2954 
2955 		mono_w32error_set_last (ERROR_INVALID_DATA);
2956 		return(NULL);
2957 	}
2958 
2959 	if (nt_headers->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
2960 		/* Do 64-bit stuff */
2961 		resource_rva = GUINT32_FROM_LE (((IMAGE_NT_HEADERS64 *)nt_headers)->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
2962 	} else {
2963 		resource_rva = GUINT32_FROM_LE (nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress);
2964 	}
2965 
2966 	if (resource_rva == 0) {
2967 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: No resources in file!", __func__);
2968 
2969 		mono_w32error_set_last (ERROR_INVALID_DATA);
2970 		return(NULL);
2971 	}
2972 
2973 	resource_dir = (IMAGE_RESOURCE_DIRECTORY *)get_ptr_from_rva (resource_rva, (IMAGE_NT_HEADERS32 *)nt_headers, file_map);
2974 	if (resource_dir == NULL) {
2975 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Can't find resource directory", __func__);
2976 
2977 		mono_w32error_set_last (ERROR_INVALID_DATA);
2978 		return(NULL);
2979 	}
2980 
2981 	entries = GUINT16_FROM_LE (resource_dir->NumberOfNamedEntries) + GUINT16_FROM_LE (resource_dir->NumberOfIdEntries);
2982 	resource_dir_entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(resource_dir + 1);
2983 
2984 	for (i = 0; i < entries; i++) {
2985 		IMAGE_RESOURCE_DIRECTORY_ENTRY *direntry = &resource_dir_entry[i];
2986 		ret = scan_resource_dir (resource_dir,
2987 					 (IMAGE_NT_HEADERS32 *)nt_headers,
2988 					 file_map, direntry, 0, res_id,
2989 					 lang_id, size);
2990 		if (ret != NULL) {
2991 			return(ret);
2992 		}
2993 	}
2994 
2995 	return(NULL);
2996 }
2997 
2998 static gpointer
find_pe_file_resources(gpointer file_map,guint32 map_size,guint32 res_id,guint32 lang_id,gsize * size)2999 find_pe_file_resources (gpointer file_map, guint32 map_size, guint32 res_id, guint32 lang_id, gsize *size)
3000 {
3001 	/* Figure this out when we support 64bit PE files */
3002 	if (1) {
3003 		return find_pe_file_resources32 (file_map, map_size, res_id,
3004 						 lang_id, size);
3005 	} else {
3006 		return find_pe_file_resources64 (file_map, map_size, res_id,
3007 						 lang_id, size);
3008 	}
3009 }
3010 
3011 static gpointer
map_pe_file(gunichar2 * filename,gint32 * map_size,void ** handle)3012 map_pe_file (gunichar2 *filename, gint32 *map_size, void **handle)
3013 {
3014 	gchar *filename_ext;
3015 	int fd;
3016 	struct stat statbuf;
3017 	gpointer file_map;
3018 
3019 	/* According to the MSDN docs, a search path is applied to
3020 	 * filename.  FIXME: implement this, for now just pass it
3021 	 * straight to fopen
3022 	 */
3023 
3024 	filename_ext = mono_unicode_to_external (filename);
3025 	if (filename_ext == NULL) {
3026 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: unicode conversion returned NULL", __func__);
3027 
3028 		mono_w32error_set_last (ERROR_INVALID_NAME);
3029 		return(NULL);
3030 	}
3031 
3032 	fd = open (filename_ext, O_RDONLY, 0);
3033 	if (fd == -1 && (errno == ENOENT || errno == ENOTDIR) && IS_PORTABILITY_SET) {
3034 		gint saved_errno;
3035 		gchar *located_filename;
3036 
3037 		saved_errno = errno;
3038 
3039 		located_filename = mono_portability_find_file (filename_ext, TRUE);
3040 		if (!located_filename) {
3041 			errno = saved_errno;
3042 
3043 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Error opening file %s (1): %s", __func__, filename_ext, strerror (errno));
3044 
3045 			g_free (filename_ext);
3046 
3047 			mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
3048 			return NULL;
3049 		}
3050 
3051 		fd = open (located_filename, O_RDONLY, 0);
3052 		if (fd == -1) {
3053 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Error opening file %s (2): %s", __func__, filename_ext, strerror (errno));
3054 
3055 			g_free (filename_ext);
3056 			g_free (located_filename);
3057 
3058 			mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
3059 			return NULL;
3060 		}
3061 
3062 		g_free (located_filename);
3063 	}
3064 
3065 	if (fstat (fd, &statbuf) == -1) {
3066 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Error stat()ing file %s: %s", __func__, filename_ext, strerror (errno));
3067 
3068 		mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
3069 		g_free (filename_ext);
3070 		close (fd);
3071 		return(NULL);
3072 	}
3073 	*map_size = statbuf.st_size;
3074 
3075 	/* Check basic file size */
3076 	if (statbuf.st_size < sizeof(IMAGE_DOS_HEADER)) {
3077 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: File %s is too small: %lld", __func__, filename_ext, (long long) statbuf.st_size);
3078 
3079 		mono_w32error_set_last (ERROR_BAD_LENGTH);
3080 		g_free (filename_ext);
3081 		close (fd);
3082 		return(NULL);
3083 	}
3084 
3085 	file_map = mono_file_map (statbuf.st_size, MONO_MMAP_READ | MONO_MMAP_PRIVATE, fd, 0, handle);
3086 	if (file_map == NULL) {
3087 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Error mmap()int file %s: %s", __func__, filename_ext, strerror (errno));
3088 
3089 		mono_w32error_set_last (mono_w32error_unix_to_win32 (errno));
3090 		g_free (filename_ext);
3091 		close (fd);
3092 		return(NULL);
3093 	}
3094 
3095 	/* Don't need the fd any more */
3096 	close (fd);
3097 	g_free (filename_ext);
3098 
3099 	return(file_map);
3100 }
3101 
3102 static void
unmap_pe_file(gpointer file_map,void * handle)3103 unmap_pe_file (gpointer file_map, void *handle)
3104 {
3105 	gint res;
3106 
3107 	res = mono_file_unmap (file_map, handle);
3108 	if (G_UNLIKELY (res != 0))
3109 		g_error ("%s: mono_file_unmap failed, error: \"%s\" (%d)", __func__, g_strerror (errno), errno);
3110 }
3111 
3112 static guint32
unicode_chars(const gunichar2 * str)3113 unicode_chars (const gunichar2 *str)
3114 {
3115 	guint32 len = 0;
3116 
3117 	do {
3118 		if (str[len] == '\0') {
3119 			return(len);
3120 		}
3121 		len++;
3122 	} while(1);
3123 }
3124 
3125 static gboolean
unicode_compare(const gunichar2 * str1,const gunichar2 * str2)3126 unicode_compare (const gunichar2 *str1, const gunichar2 *str2)
3127 {
3128 	while (*str1 && *str2) {
3129 		if (*str1 != *str2) {
3130 			return(FALSE);
3131 		}
3132 		++str1;
3133 		++str2;
3134 	}
3135 
3136 	return(*str1 == *str2);
3137 }
3138 
3139 /* compare a little-endian null-terminated utf16 string and a normal string.
3140  * Can be used only for ascii or latin1 chars.
3141  */
3142 static gboolean
unicode_string_equals(const gunichar2 * str1,const gchar * str2)3143 unicode_string_equals (const gunichar2 *str1, const gchar *str2)
3144 {
3145 	while (*str1 && *str2) {
3146 		if (GUINT16_TO_LE (*str1) != *str2) {
3147 			return(FALSE);
3148 		}
3149 		++str1;
3150 		++str2;
3151 	}
3152 
3153 	return(*str1 == *str2);
3154 }
3155 
3156 typedef struct {
3157 	guint16 data_len;
3158 	guint16 value_len;
3159 	guint16 type;
3160 	gunichar2 *key;
3161 } version_data;
3162 
3163 /* Returns a pointer to the value data, because there's no way to know
3164  * how big that data is (value_len is set to zero for most blocks :-( )
3165  */
3166 static gconstpointer
get_versioninfo_block(gconstpointer data,version_data * block)3167 get_versioninfo_block (gconstpointer data, version_data *block)
3168 {
3169 	block->data_len = GUINT16_FROM_LE (*((guint16 *)data));
3170 	data = (char *)data + sizeof(guint16);
3171 	block->value_len = GUINT16_FROM_LE (*((guint16 *)data));
3172 	data = (char *)data + sizeof(guint16);
3173 
3174 	/* No idea what the type is supposed to indicate */
3175 	block->type = GUINT16_FROM_LE (*((guint16 *)data));
3176 	data = (char *)data + sizeof(guint16);
3177 	block->key = ((gunichar2 *)data);
3178 
3179 	/* Skip over the key (including the terminator) */
3180 	data = ((gunichar2 *)data) + (unicode_chars (block->key) + 1);
3181 
3182 	/* align on a 32-bit boundary */
3183 	ALIGN32 (data);
3184 
3185 	return(data);
3186 }
3187 
3188 static gconstpointer
get_fixedfileinfo_block(gconstpointer data,version_data * block)3189 get_fixedfileinfo_block (gconstpointer data, version_data *block)
3190 {
3191 	gconstpointer data_ptr;
3192 	VS_FIXEDFILEINFO *ffi;
3193 
3194 	data_ptr = get_versioninfo_block (data, block);
3195 
3196 	if (block->value_len != sizeof(VS_FIXEDFILEINFO)) {
3197 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: FIXEDFILEINFO size mismatch", __func__);
3198 		return(NULL);
3199 	}
3200 
3201 	if (!unicode_string_equals (block->key, "VS_VERSION_INFO")) {
3202 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: VS_VERSION_INFO mismatch", __func__);
3203 
3204 		return(NULL);
3205 	}
3206 
3207 	ffi = ((VS_FIXEDFILEINFO *)data_ptr);
3208 	if ((ffi->dwSignature != VS_FFI_SIGNATURE) ||
3209 	    (ffi->dwStrucVersion != VS_FFI_STRUCVERSION)) {
3210 		mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: FIXEDFILEINFO bad signature", __func__);
3211 
3212 		return(NULL);
3213 	}
3214 
3215 	return(data_ptr);
3216 }
3217 
3218 static gconstpointer
get_varfileinfo_block(gconstpointer data_ptr,version_data * block)3219 get_varfileinfo_block (gconstpointer data_ptr, version_data *block)
3220 {
3221 	/* data is pointing at a Var block
3222 	 */
3223 	data_ptr = get_versioninfo_block (data_ptr, block);
3224 
3225 	return(data_ptr);
3226 }
3227 
3228 static gconstpointer
get_string_block(gconstpointer data_ptr,const gunichar2 * string_key,gpointer * string_value,guint32 * string_value_len,version_data * block)3229 get_string_block (gconstpointer data_ptr, const gunichar2 *string_key, gpointer *string_value,
3230 	guint32 *string_value_len, version_data *block)
3231 {
3232 	guint16 data_len = block->data_len;
3233 	guint16 string_len = 28; /* Length of the StringTable block */
3234 	char *orig_data_ptr = (char *)data_ptr - 28;
3235 
3236 	/* data_ptr is pointing at an array of one or more String blocks
3237 	 * with total length (not including alignment padding) of
3238 	 * data_len
3239 	 */
3240 	while (((char *)data_ptr - (char *)orig_data_ptr) < data_len) {
3241 		/* align on a 32-bit boundary */
3242 		ALIGN32 (data_ptr);
3243 
3244 		data_ptr = get_versioninfo_block (data_ptr, block);
3245 		if (block->data_len == 0) {
3246 			/* We must have hit padding, so give up
3247 			 * processing now
3248 			 */
3249 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3250 
3251 			return(NULL);
3252 		}
3253 
3254 		string_len = string_len + block->data_len;
3255 
3256 		if (string_key != NULL &&
3257 		    string_value != NULL &&
3258 		    string_value_len != NULL &&
3259 		    unicode_compare (string_key, block->key) == TRUE) {
3260 			*string_value = (gpointer)data_ptr;
3261 			*string_value_len = block->value_len;
3262 		}
3263 
3264 		/* Skip over the value */
3265 		data_ptr = ((gunichar2 *)data_ptr) + block->value_len;
3266 	}
3267 
3268 	return(data_ptr);
3269 }
3270 
3271 /* Returns a pointer to the byte following the Stringtable block, or
3272  * NULL if the data read hits padding.  We can't recover from this
3273  * because the data length does not include padding bytes, so it's not
3274  * possible to just return the start position + length
3275  *
3276  * If lang == NULL it means we're just stepping through this block
3277  */
3278 static gconstpointer
get_stringtable_block(gconstpointer data_ptr,gchar * lang,const gunichar2 * string_key,gpointer * string_value,guint32 * string_value_len,version_data * block)3279 get_stringtable_block (gconstpointer data_ptr, gchar *lang, const gunichar2 *string_key, gpointer *string_value,
3280 	guint32 *string_value_len, version_data *block)
3281 {
3282 	guint16 data_len = block->data_len;
3283 	guint16 string_len = 36; /* length of the StringFileInfo block */
3284 	gchar *found_lang;
3285 	gchar *lowercase_lang;
3286 
3287 	/* data_ptr is pointing at an array of StringTable blocks,
3288 	 * with total length (not including alignment padding) of
3289 	 * data_len
3290 	 */
3291 
3292 	while(string_len < data_len) {
3293 		/* align on a 32-bit boundary */
3294 		ALIGN32 (data_ptr);
3295 
3296 		data_ptr = get_versioninfo_block (data_ptr, block);
3297 		if (block->data_len == 0) {
3298 			/* We must have hit padding, so give up
3299 			 * processing now
3300 			 */
3301 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3302 			return(NULL);
3303 		}
3304 
3305 		string_len = string_len + block->data_len;
3306 
3307 		found_lang = g_utf16_to_utf8 (block->key, 8, NULL, NULL, NULL);
3308 		if (found_lang == NULL) {
3309 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Didn't find a valid language key, giving up", __func__);
3310 			return(NULL);
3311 		}
3312 
3313 		lowercase_lang = g_utf8_strdown (found_lang, -1);
3314 		g_free (found_lang);
3315 		found_lang = lowercase_lang;
3316 		lowercase_lang = NULL;
3317 
3318 		if (lang != NULL && !strcmp (found_lang, lang)) {
3319 			/* Got the one we're interested in */
3320 			data_ptr = get_string_block (data_ptr, string_key,
3321 						     string_value,
3322 						     string_value_len, block);
3323 		} else {
3324 			data_ptr = get_string_block (data_ptr, NULL, NULL,
3325 						     NULL, block);
3326 		}
3327 
3328 		g_free (found_lang);
3329 
3330 		if (data_ptr == NULL) {
3331 			/* Child block hit padding */
3332 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Child block hit 0-length block, giving up", __func__);
3333 			return(NULL);
3334 		}
3335 	}
3336 
3337 	return(data_ptr);
3338 }
3339 
3340 #if G_BYTE_ORDER == G_BIG_ENDIAN
3341 static gconstpointer
big_up_string_block(gconstpointer data_ptr,version_data * block)3342 big_up_string_block (gconstpointer data_ptr, version_data *block)
3343 {
3344 	guint16 data_len = block->data_len;
3345 	guint16 string_len = 28; /* Length of the StringTable block */
3346 	gchar *big_value;
3347 	char *orig_data_ptr = (char *)data_ptr - 28;
3348 
3349 	/* data_ptr is pointing at an array of one or more String
3350 	 * blocks with total length (not including alignment padding)
3351 	 * of data_len
3352 	 */
3353 	while (((char *)data_ptr - (char *)orig_data_ptr) < data_len) {
3354 		/* align on a 32-bit boundary */
3355 		ALIGN32 (data_ptr);
3356 
3357 		data_ptr = get_versioninfo_block (data_ptr, block);
3358 		if (block->data_len == 0) {
3359 			/* We must have hit padding, so give up
3360 			 * processing now
3361 			 */
3362 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3363 			return(NULL);
3364 		}
3365 
3366 		string_len = string_len + block->data_len;
3367 
3368 		big_value = g_convert ((gchar *)block->key,
3369 				       unicode_chars (block->key) * 2,
3370 				       "UTF-16BE", "UTF-16LE", NULL, NULL,
3371 				       NULL);
3372 		if (big_value == NULL) {
3373 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Didn't find a valid string, giving up", __func__);
3374 			return(NULL);
3375 		}
3376 
3377 		/* The swapped string should be exactly the same
3378 		 * length as the original little-endian one, but only
3379 		 * copy the number of original chars just to be on the
3380 		 * safe side
3381 		 */
3382 		memcpy (block->key, big_value, unicode_chars (block->key) * 2);
3383 		g_free (big_value);
3384 
3385 		big_value = g_convert ((gchar *)data_ptr,
3386 				       unicode_chars (data_ptr) * 2,
3387 				       "UTF-16BE", "UTF-16LE", NULL, NULL,
3388 				       NULL);
3389 		if (big_value == NULL) {
3390 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Didn't find a valid data string, giving up", __func__);
3391 			return(NULL);
3392 		}
3393 		memcpy ((gpointer)data_ptr, big_value,
3394 			unicode_chars (data_ptr) * 2);
3395 		g_free (big_value);
3396 
3397 		data_ptr = ((gunichar2 *)data_ptr) + block->value_len;
3398 	}
3399 
3400 	return(data_ptr);
3401 }
3402 
3403 /* Returns a pointer to the byte following the Stringtable block, or
3404  * NULL if the data read hits padding.  We can't recover from this
3405  * because the data length does not include padding bytes, so it's not
3406  * possible to just return the start position + length
3407  */
3408 static gconstpointer
big_up_stringtable_block(gconstpointer data_ptr,version_data * block)3409 big_up_stringtable_block (gconstpointer data_ptr, version_data *block)
3410 {
3411 	guint16 data_len = block->data_len;
3412 	guint16 string_len = 36; /* length of the StringFileInfo block */
3413 	gchar *big_value;
3414 
3415 	/* data_ptr is pointing at an array of StringTable blocks,
3416 	 * with total length (not including alignment padding) of
3417 	 * data_len
3418 	 */
3419 
3420 	while(string_len < data_len) {
3421 		/* align on a 32-bit boundary */
3422 		ALIGN32 (data_ptr);
3423 
3424 		data_ptr = get_versioninfo_block (data_ptr, block);
3425 		if (block->data_len == 0) {
3426 			/* We must have hit padding, so give up
3427 			 * processing now
3428 			 */
3429 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3430 			return(NULL);
3431 		}
3432 
3433 		string_len = string_len + block->data_len;
3434 
3435 		big_value = g_convert ((gchar *)block->key, 16, "UTF-16BE",
3436 				       "UTF-16LE", NULL, NULL, NULL);
3437 		if (big_value == NULL) {
3438 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Didn't find a valid string, giving up", __func__);
3439 			return(NULL);
3440 		}
3441 
3442 		memcpy (block->key, big_value, 16);
3443 		g_free (big_value);
3444 
3445 		data_ptr = big_up_string_block (data_ptr, block);
3446 
3447 		if (data_ptr == NULL) {
3448 			/* Child block hit padding */
3449 			mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Child block hit 0-length block, giving up", __func__);
3450 			return(NULL);
3451 		}
3452 	}
3453 
3454 	return(data_ptr);
3455 }
3456 
3457 /* Follows the data structures and turns all UTF-16 strings from the
3458  * LE found in the resource section into UTF-16BE
3459  */
3460 static void
big_up(gconstpointer datablock,guint32 size)3461 big_up (gconstpointer datablock, guint32 size)
3462 {
3463 	gconstpointer data_ptr;
3464 	gint32 data_len; /* signed to guard against underflow */
3465 	version_data block;
3466 
3467 	data_ptr = get_fixedfileinfo_block (datablock, &block);
3468 	if (data_ptr != NULL) {
3469 		VS_FIXEDFILEINFO *ffi = (VS_FIXEDFILEINFO *)data_ptr;
3470 
3471 		/* Byteswap all the fields */
3472 		ffi->dwFileVersionMS = GUINT32_SWAP_LE_BE (ffi->dwFileVersionMS);
3473 		ffi->dwFileVersionLS = GUINT32_SWAP_LE_BE (ffi->dwFileVersionLS);
3474 		ffi->dwProductVersionMS = GUINT32_SWAP_LE_BE (ffi->dwProductVersionMS);
3475 		ffi->dwProductVersionLS = GUINT32_SWAP_LE_BE (ffi->dwProductVersionLS);
3476 		ffi->dwFileFlagsMask = GUINT32_SWAP_LE_BE (ffi->dwFileFlagsMask);
3477 		ffi->dwFileFlags = GUINT32_SWAP_LE_BE (ffi->dwFileFlags);
3478 		ffi->dwFileOS = GUINT32_SWAP_LE_BE (ffi->dwFileOS);
3479 		ffi->dwFileType = GUINT32_SWAP_LE_BE (ffi->dwFileType);
3480 		ffi->dwFileSubtype = GUINT32_SWAP_LE_BE (ffi->dwFileSubtype);
3481 		ffi->dwFileDateMS = GUINT32_SWAP_LE_BE (ffi->dwFileDateMS);
3482 		ffi->dwFileDateLS = GUINT32_SWAP_LE_BE (ffi->dwFileDateLS);
3483 
3484 		/* The FFI and header occupies the first 92 bytes
3485 		 */
3486 		data_ptr = (char *)data_ptr + sizeof(VS_FIXEDFILEINFO);
3487 		data_len = block.data_len - 92;
3488 
3489 		/* There now follow zero or one StringFileInfo blocks
3490 		 * and zero or one VarFileInfo blocks
3491 		 */
3492 		while (data_len > 0) {
3493 			/* align on a 32-bit boundary */
3494 			ALIGN32 (data_ptr);
3495 
3496 			data_ptr = get_versioninfo_block (data_ptr, &block);
3497 			if (block.data_len == 0) {
3498 				/* We must have hit padding, so give
3499 				 * up processing now
3500 				 */
3501 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3502 				return;
3503 			}
3504 
3505 			data_len = data_len - block.data_len;
3506 
3507 			if (unicode_string_equals (block.key, "VarFileInfo")) {
3508 				data_ptr = get_varfileinfo_block (data_ptr,
3509 								  &block);
3510 				data_ptr = ((guchar *)data_ptr) + block.value_len;
3511 			} else if (unicode_string_equals (block.key,
3512 							  "StringFileInfo")) {
3513 				data_ptr = big_up_stringtable_block (data_ptr,
3514 								     &block);
3515 			} else {
3516 				/* Bogus data */
3517 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Not a valid VERSIONINFO child block", __func__);
3518 				return;
3519 			}
3520 
3521 			if (data_ptr == NULL) {
3522 				/* Child block hit padding */
3523 				mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Child block hit 0-length block, giving up", __func__);
3524 				return;
3525 			}
3526 		}
3527 	}
3528 }
3529 #endif
3530 
3531 gboolean
mono_w32process_get_fileversion_info(gunichar2 * filename,gpointer * data)3532 mono_w32process_get_fileversion_info (gunichar2 *filename, gpointer *data)
3533 {
3534 	gpointer file_map;
3535 	gpointer versioninfo;
3536 	void *map_handle;
3537 	gint32 map_size;
3538 	gsize datasize;
3539 
3540 	g_assert (data);
3541 	*data = NULL;
3542 
3543 	file_map = map_pe_file (filename, &map_size, &map_handle);
3544 	if (!file_map)
3545 		return FALSE;
3546 
3547 	versioninfo = find_pe_file_resources (file_map, map_size, RT_VERSION, 0, &datasize);
3548 	if (!versioninfo) {
3549 		unmap_pe_file (file_map, map_handle);
3550 		return FALSE;
3551 	}
3552 
3553 	*data = g_malloc0 (datasize);
3554 
3555 	/* This could probably process the data so that mono_w32process_ver_query_value() doesn't have to follow the
3556 	 * data blocks every time. But hey, these functions aren't likely to appear in many profiles. */
3557 	memcpy (*data, versioninfo, datasize);
3558 
3559 #if G_BYTE_ORDER == G_BIG_ENDIAN
3560 	big_up (*data, datasize);
3561 #endif
3562 
3563 	unmap_pe_file (file_map, map_handle);
3564 
3565 	return TRUE;
3566 }
3567 
3568 gboolean
mono_w32process_ver_query_value(gconstpointer datablock,const gunichar2 * subblock,gpointer * buffer,guint32 * len)3569 mono_w32process_ver_query_value (gconstpointer datablock, const gunichar2 *subblock, gpointer *buffer, guint32 *len)
3570 {
3571 	gchar *subblock_utf8, *lang_utf8 = NULL;
3572 	gboolean ret = FALSE;
3573 	version_data block;
3574 	gconstpointer data_ptr;
3575 	gint32 data_len; /* signed to guard against underflow */
3576 	gboolean want_var = FALSE;
3577 	gboolean want_string = FALSE;
3578 	gunichar2 lang[8];
3579 	const gunichar2 *string_key = NULL;
3580 	gpointer string_value = NULL;
3581 	guint32 string_value_len = 0;
3582 	gchar *lowercase_lang;
3583 
3584 	subblock_utf8 = g_utf16_to_utf8 (subblock, -1, NULL, NULL, NULL);
3585 	if (subblock_utf8 == NULL) {
3586 		return(FALSE);
3587 	}
3588 
3589 	if (!strcmp (subblock_utf8, "\\VarFileInfo\\Translation")) {
3590 		want_var = TRUE;
3591 	} else if (!strncmp (subblock_utf8, "\\StringFileInfo\\", 16)) {
3592 		want_string = TRUE;
3593 		memcpy (lang, subblock + 16, 8 * sizeof(gunichar2));
3594 		lang_utf8 = g_utf16_to_utf8 (lang, 8, NULL, NULL, NULL);
3595 		lowercase_lang = g_utf8_strdown (lang_utf8, -1);
3596 		g_free (lang_utf8);
3597 		lang_utf8 = lowercase_lang;
3598 		lowercase_lang = NULL;
3599 		string_key = subblock + 25;
3600 	}
3601 
3602 	if (!strcmp (subblock_utf8, "\\")) {
3603 		data_ptr = get_fixedfileinfo_block (datablock, &block);
3604 		if (data_ptr != NULL) {
3605 			*buffer = (gpointer)data_ptr;
3606 			*len = block.value_len;
3607 
3608 			ret = TRUE;
3609 		}
3610 	} else if (want_var || want_string) {
3611 		data_ptr = get_fixedfileinfo_block (datablock, &block);
3612 		if (data_ptr != NULL) {
3613 			/* The FFI and header occupies the first 92
3614 			 * bytes
3615 			 */
3616 			data_ptr = (char *)data_ptr + sizeof(VS_FIXEDFILEINFO);
3617 			data_len = block.data_len - 92;
3618 
3619 			/* There now follow zero or one StringFileInfo
3620 			 * blocks and zero or one VarFileInfo blocks
3621 			 */
3622 			while (data_len > 0) {
3623 				/* align on a 32-bit boundary */
3624 				ALIGN32 (data_ptr);
3625 
3626 				data_ptr = get_versioninfo_block (data_ptr,
3627 								  &block);
3628 				if (block.data_len == 0) {
3629 					/* We must have hit padding,
3630 					 * so give up processing now
3631 					 */
3632 					mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Hit 0-length block, giving up", __func__);
3633 					goto done;
3634 				}
3635 
3636 				data_len = data_len - block.data_len;
3637 
3638 				if (unicode_string_equals (block.key, "VarFileInfo")) {
3639 					data_ptr = get_varfileinfo_block (data_ptr, &block);
3640 					if (want_var) {
3641 						*buffer = (gpointer)data_ptr;
3642 						*len = block.value_len;
3643 						ret = TRUE;
3644 						goto done;
3645 					} else {
3646 						/* Skip over the Var block */
3647 						data_ptr = ((guchar *)data_ptr) + block.value_len;
3648 					}
3649 				} else if (unicode_string_equals (block.key, "StringFileInfo")) {
3650 					data_ptr = get_stringtable_block (data_ptr, lang_utf8, string_key, &string_value, &string_value_len, &block);
3651 					if (want_string &&
3652 					    string_value != NULL &&
3653 					    string_value_len != 0) {
3654 						*buffer = string_value;
3655 						*len = unicode_chars ((const gunichar2 *)string_value) + 1; /* Include trailing null */
3656 						ret = TRUE;
3657 						goto done;
3658 					}
3659 				} else {
3660 					/* Bogus data */
3661 					mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Not a valid VERSIONINFO child block", __func__);
3662 					goto done;
3663 				}
3664 
3665 				if (data_ptr == NULL) {
3666 					/* Child block hit padding */
3667 					mono_trace (G_LOG_LEVEL_DEBUG, MONO_TRACE_IO_LAYER_PROCESS, "%s: Child block hit 0-length block, giving up", __func__);
3668 					goto done;
3669 				}
3670 			}
3671 		}
3672 	}
3673 
3674   done:
3675 	if (lang_utf8) {
3676 		g_free (lang_utf8);
3677 	}
3678 
3679 	g_free (subblock_utf8);
3680 	return(ret);
3681 }
3682 
3683 static guint32
copy_lang(gunichar2 * lang_out,guint32 lang_len,const gchar * text)3684 copy_lang (gunichar2 *lang_out, guint32 lang_len, const gchar *text)
3685 {
3686 	gunichar2 *unitext;
3687 	int chars = strlen (text);
3688 	int ret;
3689 
3690 	unitext = g_utf8_to_utf16 (text, -1, NULL, NULL, NULL);
3691 	g_assert (unitext != NULL);
3692 
3693 	if (chars < (lang_len - 1)) {
3694 		memcpy (lang_out, (gpointer)unitext, chars * 2);
3695 		lang_out[chars] = '\0';
3696 		ret = chars;
3697 	} else {
3698 		memcpy (lang_out, (gpointer)unitext, (lang_len - 1) * 2);
3699 		lang_out[lang_len] = '\0';
3700 		ret = lang_len;
3701 	}
3702 
3703 	g_free (unitext);
3704 
3705 	return(ret);
3706 }
3707 
3708 guint32
mono_w32process_ver_language_name(guint32 lang,gunichar2 * lang_out,guint32 lang_len)3709 mono_w32process_ver_language_name (guint32 lang, gunichar2 *lang_out, guint32 lang_len)
3710 {
3711 	int primary, secondary;
3712 	const char *name = NULL;
3713 
3714 	primary = lang & 0x3FF;
3715 	secondary = (lang >> 10) & 0x3F;
3716 
3717 	switch(primary) {
3718 	case 0x00:
3719 		switch (secondary) {
3720 		case 0x01: name = "Process Default Language"; break;
3721 		}
3722 		break;
3723 	case 0x01:
3724 		switch (secondary) {
3725 		case 0x00:
3726 		case 0x01: name = "Arabic (Saudi Arabia)"; break;
3727 		case 0x02: name = "Arabic (Iraq)"; break;
3728 		case 0x03: name = "Arabic (Egypt)"; break;
3729 		case 0x04: name = "Arabic (Libya)"; break;
3730 		case 0x05: name = "Arabic (Algeria)"; break;
3731 		case 0x06: name = "Arabic (Morocco)"; break;
3732 		case 0x07: name = "Arabic (Tunisia)"; break;
3733 		case 0x08: name = "Arabic (Oman)"; break;
3734 		case 0x09: name = "Arabic (Yemen)"; break;
3735 		case 0x0a: name = "Arabic (Syria)"; break;
3736 		case 0x0b: name = "Arabic (Jordan)"; break;
3737 		case 0x0c: name = "Arabic (Lebanon)"; break;
3738 		case 0x0d: name = "Arabic (Kuwait)"; break;
3739 		case 0x0e: name = "Arabic (U.A.E.)"; break;
3740 		case 0x0f: name = "Arabic (Bahrain)"; break;
3741 		case 0x10: name = "Arabic (Qatar)"; break;
3742 		}
3743 		break;
3744 	case 0x02:
3745 		switch (secondary) {
3746 		case 0x00: name = "Bulgarian (Bulgaria)"; break;
3747 		case 0x01: name = "Bulgarian"; break;
3748 		}
3749 		break;
3750 	case 0x03:
3751 		switch (secondary) {
3752 		case 0x00: name = "Catalan (Spain)"; break;
3753 		case 0x01: name = "Catalan"; break;
3754 		}
3755 		break;
3756 	case 0x04:
3757 		switch (secondary) {
3758 		case 0x00:
3759 		case 0x01: name = "Chinese (Taiwan)"; break;
3760 		case 0x02: name = "Chinese (PRC)"; break;
3761 		case 0x03: name = "Chinese (Hong Kong S.A.R.)"; break;
3762 		case 0x04: name = "Chinese (Singapore)"; break;
3763 		case 0x05: name = "Chinese (Macau S.A.R.)"; break;
3764 		}
3765 		break;
3766 	case 0x05:
3767 		switch (secondary) {
3768 		case 0x00: name = "Czech (Czech Republic)"; break;
3769 		case 0x01: name = "Czech"; break;
3770 		}
3771 		break;
3772 	case 0x06:
3773 		switch (secondary) {
3774 		case 0x00: name = "Danish (Denmark)"; break;
3775 		case 0x01: name = "Danish"; break;
3776 		}
3777 		break;
3778 	case 0x07:
3779 		switch (secondary) {
3780 		case 0x00:
3781 		case 0x01: name = "German (Germany)"; break;
3782 		case 0x02: name = "German (Switzerland)"; break;
3783 		case 0x03: name = "German (Austria)"; break;
3784 		case 0x04: name = "German (Luxembourg)"; break;
3785 		case 0x05: name = "German (Liechtenstein)"; break;
3786 		}
3787 		break;
3788 	case 0x08:
3789 		switch (secondary) {
3790 		case 0x00: name = "Greek (Greece)"; break;
3791 		case 0x01: name = "Greek"; break;
3792 		}
3793 		break;
3794 	case 0x09:
3795 		switch (secondary) {
3796 		case 0x00:
3797 		case 0x01: name = "English (United States)"; break;
3798 		case 0x02: name = "English (United Kingdom)"; break;
3799 		case 0x03: name = "English (Australia)"; break;
3800 		case 0x04: name = "English (Canada)"; break;
3801 		case 0x05: name = "English (New Zealand)"; break;
3802 		case 0x06: name = "English (Ireland)"; break;
3803 		case 0x07: name = "English (South Africa)"; break;
3804 		case 0x08: name = "English (Jamaica)"; break;
3805 		case 0x09: name = "English (Caribbean)"; break;
3806 		case 0x0a: name = "English (Belize)"; break;
3807 		case 0x0b: name = "English (Trinidad and Tobago)"; break;
3808 		case 0x0c: name = "English (Zimbabwe)"; break;
3809 		case 0x0d: name = "English (Philippines)"; break;
3810 		case 0x10: name = "English (India)"; break;
3811 		case 0x11: name = "English (Malaysia)"; break;
3812 		case 0x12: name = "English (Singapore)"; break;
3813 		}
3814 		break;
3815 	case 0x0a:
3816 		switch (secondary) {
3817 		case 0x00: name = "Spanish (Spain)"; break;
3818 		case 0x01: name = "Spanish (Traditional Sort)"; break;
3819 		case 0x02: name = "Spanish (Mexico)"; break;
3820 		case 0x03: name = "Spanish (International Sort)"; break;
3821 		case 0x04: name = "Spanish (Guatemala)"; break;
3822 		case 0x05: name = "Spanish (Costa Rica)"; break;
3823 		case 0x06: name = "Spanish (Panama)"; break;
3824 		case 0x07: name = "Spanish (Dominican Republic)"; break;
3825 		case 0x08: name = "Spanish (Venezuela)"; break;
3826 		case 0x09: name = "Spanish (Colombia)"; break;
3827 		case 0x0a: name = "Spanish (Peru)"; break;
3828 		case 0x0b: name = "Spanish (Argentina)"; break;
3829 		case 0x0c: name = "Spanish (Ecuador)"; break;
3830 		case 0x0d: name = "Spanish (Chile)"; break;
3831 		case 0x0e: name = "Spanish (Uruguay)"; break;
3832 		case 0x0f: name = "Spanish (Paraguay)"; break;
3833 		case 0x10: name = "Spanish (Bolivia)"; break;
3834 		case 0x11: name = "Spanish (El Salvador)"; break;
3835 		case 0x12: name = "Spanish (Honduras)"; break;
3836 		case 0x13: name = "Spanish (Nicaragua)"; break;
3837 		case 0x14: name = "Spanish (Puerto Rico)"; break;
3838 		case 0x15: name = "Spanish (United States)"; break;
3839 		}
3840 		break;
3841 	case 0x0b:
3842 		switch (secondary) {
3843 		case 0x00: name = "Finnish (Finland)"; break;
3844 		case 0x01: name = "Finnish"; break;
3845 		}
3846 		break;
3847 	case 0x0c:
3848 		switch (secondary) {
3849 		case 0x00:
3850 		case 0x01: name = "French (France)"; break;
3851 		case 0x02: name = "French (Belgium)"; break;
3852 		case 0x03: name = "French (Canada)"; break;
3853 		case 0x04: name = "French (Switzerland)"; break;
3854 		case 0x05: name = "French (Luxembourg)"; break;
3855 		case 0x06: name = "French (Monaco)"; break;
3856 		}
3857 		break;
3858 	case 0x0d:
3859 		switch (secondary) {
3860 		case 0x00: name = "Hebrew (Israel)"; break;
3861 		case 0x01: name = "Hebrew"; break;
3862 		}
3863 		break;
3864 	case 0x0e:
3865 		switch (secondary) {
3866 		case 0x00: name = "Hungarian (Hungary)"; break;
3867 		case 0x01: name = "Hungarian"; break;
3868 		}
3869 		break;
3870 	case 0x0f:
3871 		switch (secondary) {
3872 		case 0x00: name = "Icelandic (Iceland)"; break;
3873 		case 0x01: name = "Icelandic"; break;
3874 		}
3875 		break;
3876 	case 0x10:
3877 		switch (secondary) {
3878 		case 0x00:
3879 		case 0x01: name = "Italian (Italy)"; break;
3880 		case 0x02: name = "Italian (Switzerland)"; break;
3881 		}
3882 		break;
3883 	case 0x11:
3884 		switch (secondary) {
3885 		case 0x00: name = "Japanese (Japan)"; break;
3886 		case 0x01: name = "Japanese"; break;
3887 		}
3888 		break;
3889 	case 0x12:
3890 		switch (secondary) {
3891 		case 0x00: name = "Korean (Korea)"; break;
3892 		case 0x01: name = "Korean"; break;
3893 		}
3894 		break;
3895 	case 0x13:
3896 		switch (secondary) {
3897 		case 0x00:
3898 		case 0x01: name = "Dutch (Netherlands)"; break;
3899 		case 0x02: name = "Dutch (Belgium)"; break;
3900 		}
3901 		break;
3902 	case 0x14:
3903 		switch (secondary) {
3904 		case 0x00:
3905 		case 0x01: name = "Norwegian (Bokmal)"; break;
3906 		case 0x02: name = "Norwegian (Nynorsk)"; break;
3907 		}
3908 		break;
3909 	case 0x15:
3910 		switch (secondary) {
3911 		case 0x00: name = "Polish (Poland)"; break;
3912 		case 0x01: name = "Polish"; break;
3913 		}
3914 		break;
3915 	case 0x16:
3916 		switch (secondary) {
3917 		case 0x00:
3918 		case 0x01: name = "Portuguese (Brazil)"; break;
3919 		case 0x02: name = "Portuguese (Portugal)"; break;
3920 		}
3921 		break;
3922 	case 0x17:
3923 		switch (secondary) {
3924 		case 0x01: name = "Romansh (Switzerland)"; break;
3925 		}
3926 		break;
3927 	case 0x18:
3928 		switch (secondary) {
3929 		case 0x00: name = "Romanian (Romania)"; break;
3930 		case 0x01: name = "Romanian"; break;
3931 		}
3932 		break;
3933 	case 0x19:
3934 		switch (secondary) {
3935 		case 0x00: name = "Russian (Russia)"; break;
3936 		case 0x01: name = "Russian"; break;
3937 		}
3938 		break;
3939 	case 0x1a:
3940 		switch (secondary) {
3941 		case 0x00: name = "Croatian (Croatia)"; break;
3942 		case 0x01: name = "Croatian"; break;
3943 		case 0x02: name = "Serbian (Latin)"; break;
3944 		case 0x03: name = "Serbian (Cyrillic)"; break;
3945 		case 0x04: name = "Croatian (Bosnia and Herzegovina)"; break;
3946 		case 0x05: name = "Bosnian (Latin, Bosnia and Herzegovina)"; break;
3947 		case 0x06: name = "Serbian (Latin, Bosnia and Herzegovina)"; break;
3948 		case 0x07: name = "Serbian (Cyrillic, Bosnia and Herzegovina)"; break;
3949 		case 0x08: name = "Bosnian (Cyrillic, Bosnia and Herzegovina)"; break;
3950 		}
3951 		break;
3952 	case 0x1b:
3953 		switch (secondary) {
3954 		case 0x00: name = "Slovak (Slovakia)"; break;
3955 		case 0x01: name = "Slovak"; break;
3956 		}
3957 		break;
3958 	case 0x1c:
3959 		switch (secondary) {
3960 		case 0x00: name = "Albanian (Albania)"; break;
3961 		case 0x01: name = "Albanian"; break;
3962 		}
3963 		break;
3964 	case 0x1d:
3965 		switch (secondary) {
3966 		case 0x00: name = "Swedish (Sweden)"; break;
3967 		case 0x01: name = "Swedish"; break;
3968 		case 0x02: name = "Swedish (Finland)"; break;
3969 		}
3970 		break;
3971 	case 0x1e:
3972 		switch (secondary) {
3973 		case 0x00: name = "Thai (Thailand)"; break;
3974 		case 0x01: name = "Thai"; break;
3975 		}
3976 		break;
3977 	case 0x1f:
3978 		switch (secondary) {
3979 		case 0x00: name = "Turkish (Turkey)"; break;
3980 		case 0x01: name = "Turkish"; break;
3981 		}
3982 		break;
3983 	case 0x20:
3984 		switch (secondary) {
3985 		case 0x00: name = "Urdu (Islamic Republic of Pakistan)"; break;
3986 		case 0x01: name = "Urdu"; break;
3987 		}
3988 		break;
3989 	case 0x21:
3990 		switch (secondary) {
3991 		case 0x00: name = "Indonesian (Indonesia)"; break;
3992 		case 0x01: name = "Indonesian"; break;
3993 		}
3994 		break;
3995 	case 0x22:
3996 		switch (secondary) {
3997 		case 0x00: name = "Ukrainian (Ukraine)"; break;
3998 		case 0x01: name = "Ukrainian"; break;
3999 		}
4000 		break;
4001 	case 0x23:
4002 		switch (secondary) {
4003 		case 0x00: name = "Belarusian (Belarus)"; break;
4004 		case 0x01: name = "Belarusian"; break;
4005 		}
4006 		break;
4007 	case 0x24:
4008 		switch (secondary) {
4009 		case 0x00: name = "Slovenian (Slovenia)"; break;
4010 		case 0x01: name = "Slovenian"; break;
4011 		}
4012 		break;
4013 	case 0x25:
4014 		switch (secondary) {
4015 		case 0x00: name = "Estonian (Estonia)"; break;
4016 		case 0x01: name = "Estonian"; break;
4017 		}
4018 		break;
4019 	case 0x26:
4020 		switch (secondary) {
4021 		case 0x00: name = "Latvian (Latvia)"; break;
4022 		case 0x01: name = "Latvian"; break;
4023 		}
4024 		break;
4025 	case 0x27:
4026 		switch (secondary) {
4027 		case 0x00: name = "Lithuanian (Lithuania)"; break;
4028 		case 0x01: name = "Lithuanian"; break;
4029 		}
4030 		break;
4031 	case 0x28:
4032 		switch (secondary) {
4033 		case 0x01: name = "Tajik (Tajikistan)"; break;
4034 		}
4035 		break;
4036 	case 0x29:
4037 		switch (secondary) {
4038 		case 0x00: name = "Farsi (Iran)"; break;
4039 		case 0x01: name = "Farsi"; break;
4040 		}
4041 		break;
4042 	case 0x2a:
4043 		switch (secondary) {
4044 		case 0x00: name = "Vietnamese (Viet Nam)"; break;
4045 		case 0x01: name = "Vietnamese"; break;
4046 		}
4047 		break;
4048 	case 0x2b:
4049 		switch (secondary) {
4050 		case 0x00: name = "Armenian (Armenia)"; break;
4051 		case 0x01: name = "Armenian"; break;
4052 		}
4053 		break;
4054 	case 0x2c:
4055 		switch (secondary) {
4056 		case 0x00: name = "Azeri (Latin) (Azerbaijan)"; break;
4057 		case 0x01: name = "Azeri (Latin)"; break;
4058 		case 0x02: name = "Azeri (Cyrillic)"; break;
4059 		}
4060 		break;
4061 	case 0x2d:
4062 		switch (secondary) {
4063 		case 0x00: name = "Basque (Spain)"; break;
4064 		case 0x01: name = "Basque"; break;
4065 		}
4066 		break;
4067 	case 0x2e:
4068 		switch (secondary) {
4069 		case 0x01: name = "Upper Sorbian (Germany)"; break;
4070 		case 0x02: name = "Lower Sorbian (Germany)"; break;
4071 		}
4072 		break;
4073 	case 0x2f:
4074 		switch (secondary) {
4075 		case 0x00: name = "FYRO Macedonian (Former Yugoslav Republic of Macedonia)"; break;
4076 		case 0x01: name = "FYRO Macedonian"; break;
4077 		}
4078 		break;
4079 	case 0x32:
4080 		switch (secondary) {
4081 		case 0x00: name = "Tswana (South Africa)"; break;
4082 		case 0x01: name = "Tswana"; break;
4083 		}
4084 		break;
4085 	case 0x34:
4086 		switch (secondary) {
4087 		case 0x00: name = "Xhosa (South Africa)"; break;
4088 		case 0x01: name = "Xhosa"; break;
4089 		}
4090 		break;
4091 	case 0x35:
4092 		switch (secondary) {
4093 		case 0x00: name = "Zulu (South Africa)"; break;
4094 		case 0x01: name = "Zulu"; break;
4095 		}
4096 		break;
4097 	case 0x36:
4098 		switch (secondary) {
4099 		case 0x00: name = "Afrikaans (South Africa)"; break;
4100 		case 0x01: name = "Afrikaans"; break;
4101 		}
4102 		break;
4103 	case 0x37:
4104 		switch (secondary) {
4105 		case 0x00: name = "Georgian (Georgia)"; break;
4106 		case 0x01: name = "Georgian"; break;
4107 		}
4108 		break;
4109 	case 0x38:
4110 		switch (secondary) {
4111 		case 0x00: name = "Faroese (Faroe Islands)"; break;
4112 		case 0x01: name = "Faroese"; break;
4113 		}
4114 		break;
4115 	case 0x39:
4116 		switch (secondary) {
4117 		case 0x00: name = "Hindi (India)"; break;
4118 		case 0x01: name = "Hindi"; break;
4119 		}
4120 		break;
4121 	case 0x3a:
4122 		switch (secondary) {
4123 		case 0x00: name = "Maltese (Malta)"; break;
4124 		case 0x01: name = "Maltese"; break;
4125 		}
4126 		break;
4127 	case 0x3b:
4128 		switch (secondary) {
4129 		case 0x00: name = "Sami (Northern) (Norway)"; break;
4130 		case 0x01: name = "Sami, Northern (Norway)"; break;
4131 		case 0x02: name = "Sami, Northern (Sweden)"; break;
4132 		case 0x03: name = "Sami, Northern (Finland)"; break;
4133 		case 0x04: name = "Sami, Lule (Norway)"; break;
4134 		case 0x05: name = "Sami, Lule (Sweden)"; break;
4135 		case 0x06: name = "Sami, Southern (Norway)"; break;
4136 		case 0x07: name = "Sami, Southern (Sweden)"; break;
4137 		case 0x08: name = "Sami, Skolt (Finland)"; break;
4138 		case 0x09: name = "Sami, Inari (Finland)"; break;
4139 		}
4140 		break;
4141 	case 0x3c:
4142 		switch (secondary) {
4143 		case 0x02: name = "Irish (Ireland)"; break;
4144 		}
4145 		break;
4146 	case 0x3e:
4147 		switch (secondary) {
4148 		case 0x00:
4149 		case 0x01: name = "Malay (Malaysia)"; break;
4150 		case 0x02: name = "Malay (Brunei Darussalam)"; break;
4151 		}
4152 		break;
4153 	case 0x3f:
4154 		switch (secondary) {
4155 		case 0x00: name = "Kazakh (Kazakhstan)"; break;
4156 		case 0x01: name = "Kazakh"; break;
4157 		}
4158 		break;
4159 	case 0x40:
4160 		switch (secondary) {
4161 		case 0x00: name = "Kyrgyz (Kyrgyzstan)"; break;
4162 		case 0x01: name = "Kyrgyz (Cyrillic)"; break;
4163 		}
4164 		break;
4165 	case 0x41:
4166 		switch (secondary) {
4167 		case 0x00: name = "Swahili (Kenya)"; break;
4168 		case 0x01: name = "Swahili"; break;
4169 		}
4170 		break;
4171 	case 0x42:
4172 		switch (secondary) {
4173 		case 0x01: name = "Turkmen (Turkmenistan)"; break;
4174 		}
4175 		break;
4176 	case 0x43:
4177 		switch (secondary) {
4178 		case 0x00: name = "Uzbek (Latin) (Uzbekistan)"; break;
4179 		case 0x01: name = "Uzbek (Latin)"; break;
4180 		case 0x02: name = "Uzbek (Cyrillic)"; break;
4181 		}
4182 		break;
4183 	case 0x44:
4184 		switch (secondary) {
4185 		case 0x00: name = "Tatar (Russia)"; break;
4186 		case 0x01: name = "Tatar"; break;
4187 		}
4188 		break;
4189 	case 0x45:
4190 		switch (secondary) {
4191 		case 0x00:
4192 		case 0x01: name = "Bengali (India)"; break;
4193 		}
4194 		break;
4195 	case 0x46:
4196 		switch (secondary) {
4197 		case 0x00: name = "Punjabi (India)"; break;
4198 		case 0x01: name = "Punjabi"; break;
4199 		}
4200 		break;
4201 	case 0x47:
4202 		switch (secondary) {
4203 		case 0x00: name = "Gujarati (India)"; break;
4204 		case 0x01: name = "Gujarati"; break;
4205 		}
4206 		break;
4207 	case 0x49:
4208 		switch (secondary) {
4209 		case 0x00: name = "Tamil (India)"; break;
4210 		case 0x01: name = "Tamil"; break;
4211 		}
4212 		break;
4213 	case 0x4a:
4214 		switch (secondary) {
4215 		case 0x00: name = "Telugu (India)"; break;
4216 		case 0x01: name = "Telugu"; break;
4217 		}
4218 		break;
4219 	case 0x4b:
4220 		switch (secondary) {
4221 		case 0x00: name = "Kannada (India)"; break;
4222 		case 0x01: name = "Kannada"; break;
4223 		}
4224 		break;
4225 	case 0x4c:
4226 		switch (secondary) {
4227 		case 0x00:
4228 		case 0x01: name = "Malayalam (India)"; break;
4229 		}
4230 		break;
4231 	case 0x4d:
4232 		switch (secondary) {
4233 		case 0x01: name = "Assamese (India)"; break;
4234 		}
4235 		break;
4236 	case 0x4e:
4237 		switch (secondary) {
4238 		case 0x00: name = "Marathi (India)"; break;
4239 		case 0x01: name = "Marathi"; break;
4240 		}
4241 		break;
4242 	case 0x4f:
4243 		switch (secondary) {
4244 		case 0x00: name = "Sanskrit (India)"; break;
4245 		case 0x01: name = "Sanskrit"; break;
4246 		}
4247 		break;
4248 	case 0x50:
4249 		switch (secondary) {
4250 		case 0x00: name = "Mongolian (Mongolia)"; break;
4251 		case 0x01: name = "Mongolian (Cyrillic)"; break;
4252 		case 0x02: name = "Mongolian (PRC)"; break;
4253 		}
4254 		break;
4255 	case 0x51:
4256 		switch (secondary) {
4257 		case 0x01: name = "Tibetan (PRC)"; break;
4258 		case 0x02: name = "Tibetan (Bhutan)"; break;
4259 		}
4260 		break;
4261 	case 0x52:
4262 		switch (secondary) {
4263 		case 0x00: name = "Welsh (United Kingdom)"; break;
4264 		case 0x01: name = "Welsh"; break;
4265 		}
4266 		break;
4267 	case 0x53:
4268 		switch (secondary) {
4269 		case 0x01: name = "Khmer (Cambodia)"; break;
4270 		}
4271 		break;
4272 	case 0x54:
4273 		switch (secondary) {
4274 		case 0x01: name = "Lao (Lao PDR)"; break;
4275 		}
4276 		break;
4277 	case 0x56:
4278 		switch (secondary) {
4279 		case 0x00: name = "Galician (Spain)"; break;
4280 		case 0x01: name = "Galician"; break;
4281 		}
4282 		break;
4283 	case 0x57:
4284 		switch (secondary) {
4285 		case 0x00: name = "Konkani (India)"; break;
4286 		case 0x01: name = "Konkani"; break;
4287 		}
4288 		break;
4289 	case 0x5a:
4290 		switch (secondary) {
4291 		case 0x00: name = "Syriac (Syria)"; break;
4292 		case 0x01: name = "Syriac"; break;
4293 		}
4294 		break;
4295 	case 0x5b:
4296 		switch (secondary) {
4297 		case 0x01: name = "Sinhala (Sri Lanka)"; break;
4298 		}
4299 		break;
4300 	case 0x5d:
4301 		switch (secondary) {
4302 		case 0x01: name = "Inuktitut (Syllabics, Canada)"; break;
4303 		case 0x02: name = "Inuktitut (Latin, Canada)"; break;
4304 		}
4305 		break;
4306 	case 0x5e:
4307 		switch (secondary) {
4308 		case 0x01: name = "Amharic (Ethiopia)"; break;
4309 		}
4310 		break;
4311 	case 0x5f:
4312 		switch (secondary) {
4313 		case 0x02: name = "Tamazight (Algeria, Latin)"; break;
4314 		}
4315 		break;
4316 	case 0x61:
4317 		switch (secondary) {
4318 		case 0x01: name = "Nepali (Nepal)"; break;
4319 		}
4320 		break;
4321 	case 0x62:
4322 		switch (secondary) {
4323 		case 0x01: name = "Frisian (Netherlands)"; break;
4324 		}
4325 		break;
4326 	case 0x63:
4327 		switch (secondary) {
4328 		case 0x01: name = "Pashto (Afghanistan)"; break;
4329 		}
4330 		break;
4331 	case 0x64:
4332 		switch (secondary) {
4333 		case 0x01: name = "Filipino (Philippines)"; break;
4334 		}
4335 		break;
4336 	case 0x65:
4337 		switch (secondary) {
4338 		case 0x00: name = "Divehi (Maldives)"; break;
4339 		case 0x01: name = "Divehi"; break;
4340 		}
4341 		break;
4342 	case 0x68:
4343 		switch (secondary) {
4344 		case 0x01: name = "Hausa (Nigeria, Latin)"; break;
4345 		}
4346 		break;
4347 	case 0x6a:
4348 		switch (secondary) {
4349 		case 0x01: name = "Yoruba (Nigeria)"; break;
4350 		}
4351 		break;
4352 	case 0x6b:
4353 		switch (secondary) {
4354 		case 0x00:
4355 		case 0x01: name = "Quechua (Bolivia)"; break;
4356 		case 0x02: name = "Quechua (Ecuador)"; break;
4357 		case 0x03: name = "Quechua (Peru)"; break;
4358 		}
4359 		break;
4360 	case 0x6c:
4361 		switch (secondary) {
4362 		case 0x00: name = "Northern Sotho (South Africa)"; break;
4363 		case 0x01: name = "Northern Sotho"; break;
4364 		}
4365 		break;
4366 	case 0x6d:
4367 		switch (secondary) {
4368 		case 0x01: name = "Bashkir (Russia)"; break;
4369 		}
4370 		break;
4371 	case 0x6e:
4372 		switch (secondary) {
4373 		case 0x01: name = "Luxembourgish (Luxembourg)"; break;
4374 		}
4375 		break;
4376 	case 0x6f:
4377 		switch (secondary) {
4378 		case 0x01: name = "Greenlandic (Greenland)"; break;
4379 		}
4380 		break;
4381 	case 0x78:
4382 		switch (secondary) {
4383 		case 0x01: name = "Yi (PRC)"; break;
4384 		}
4385 		break;
4386 	case 0x7a:
4387 		switch (secondary) {
4388 		case 0x01: name = "Mapudungun (Chile)"; break;
4389 		}
4390 		break;
4391 	case 0x7c:
4392 		switch (secondary) {
4393 		case 0x01: name = "Mohawk (Mohawk)"; break;
4394 		}
4395 		break;
4396 	case 0x7e:
4397 		switch (secondary) {
4398 		case 0x01: name = "Breton (France)"; break;
4399 		}
4400 		break;
4401 	case 0x7f:
4402 		switch (secondary) {
4403 		case 0x00: name = "Invariant Language (Invariant Country)"; break;
4404 		}
4405 		break;
4406 	case 0x80:
4407 		switch (secondary) {
4408 		case 0x01: name = "Uighur (PRC)"; break;
4409 		}
4410 		break;
4411 	case 0x81:
4412 		switch (secondary) {
4413 		case 0x00: name = "Maori (New Zealand)"; break;
4414 		case 0x01: name = "Maori"; break;
4415 		}
4416 		break;
4417 	case 0x83:
4418 		switch (secondary) {
4419 		case 0x01: name = "Corsican (France)"; break;
4420 		}
4421 		break;
4422 	case 0x84:
4423 		switch (secondary) {
4424 		case 0x01: name = "Alsatian (France)"; break;
4425 		}
4426 		break;
4427 	case 0x85:
4428 		switch (secondary) {
4429 		case 0x01: name = "Yakut (Russia)"; break;
4430 		}
4431 		break;
4432 	case 0x86:
4433 		switch (secondary) {
4434 		case 0x01: name = "K'iche (Guatemala)"; break;
4435 		}
4436 		break;
4437 	case 0x87:
4438 		switch (secondary) {
4439 		case 0x01: name = "Kinyarwanda (Rwanda)"; break;
4440 		}
4441 		break;
4442 	case 0x88:
4443 		switch (secondary) {
4444 		case 0x01: name = "Wolof (Senegal)"; break;
4445 		}
4446 		break;
4447 	case 0x8c:
4448 		switch (secondary) {
4449 		case 0x01: name = "Dari (Afghanistan)"; break;
4450 		}
4451 		break;
4452 
4453 	default:
4454 		name = "Language Neutral";
4455 
4456 	}
4457 
4458 	if (!name)
4459 		name = "Language Neutral";
4460 
4461 	return copy_lang (lang_out, lang_len, name);
4462 }
4463