1 | /* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */ |
2 | /* If you are missing that file, acquire a complete release at teeworlds.com. */ |
3 | #include <atomic> |
4 | #include <cctype> |
5 | #include <charconv> |
6 | #include <chrono> |
7 | #include <cinttypes> |
8 | #include <cmath> |
9 | #include <cstdarg> |
10 | #include <cstdio> |
11 | #include <cstring> |
12 | #include <iomanip> // std::get_time |
13 | #include <iterator> // std::size |
14 | #include <sstream> // std::istringstream |
15 | #include <string_view> |
16 | |
17 | #include "lock.h" |
18 | #include "logger.h" |
19 | #include "system.h" |
20 | |
21 | #include <sys/types.h> |
22 | |
23 | #if defined(CONF_WEBSOCKETS) |
24 | #include <engine/shared/websockets.h> |
25 | #endif |
26 | |
27 | #if defined(CONF_FAMILY_UNIX) |
28 | #include <csignal> |
29 | #include <locale> |
30 | #include <sys/stat.h> |
31 | #include <sys/time.h> |
32 | #include <sys/utsname.h> |
33 | #include <sys/wait.h> |
34 | #include <unistd.h> |
35 | |
36 | /* unix net includes */ |
37 | #include <arpa/inet.h> |
38 | #include <cerrno> |
39 | #include <netdb.h> |
40 | #include <netinet/in.h> |
41 | #include <pthread.h> |
42 | #include <sys/ioctl.h> |
43 | #include <sys/socket.h> |
44 | |
45 | #include <dirent.h> |
46 | |
47 | #if defined(CONF_PLATFORM_MACOS) |
48 | // some lock and pthread functions are already defined in headers |
49 | // included from Carbon.h |
50 | // this prevents having duplicate definitions of those |
51 | #define _lock_set_user_ |
52 | #define _task_user_ |
53 | |
54 | #include <Carbon/Carbon.h> |
55 | #include <CoreFoundation/CoreFoundation.h> |
56 | #include <mach-o/dyld.h> |
57 | #include <mach/mach_time.h> |
58 | |
59 | #if defined(__MAC_10_10) && __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10 |
60 | #include <pthread/qos.h> |
61 | #endif |
62 | #endif |
63 | |
64 | #elif defined(CONF_FAMILY_WINDOWS) |
65 | #include <windows.h> |
66 | #include <winsock2.h> |
67 | #include <ws2tcpip.h> |
68 | |
69 | #include <cerrno> |
70 | #include <cfenv> |
71 | #include <io.h> |
72 | #include <objbase.h> |
73 | #include <process.h> |
74 | #include <share.h> |
75 | #include <shellapi.h> |
76 | #include <shlobj.h> // SHChangeNotify |
77 | #include <shlwapi.h> |
78 | #include <wincrypt.h> |
79 | #else |
80 | #error NOT IMPLEMENTED |
81 | #endif |
82 | |
83 | #if defined(CONF_PLATFORM_SOLARIS) |
84 | #include <sys/filio.h> |
85 | #endif |
86 | |
87 | IOHANDLE io_stdin() |
88 | { |
89 | return stdin; |
90 | } |
91 | |
92 | IOHANDLE io_stdout() |
93 | { |
94 | return stdout; |
95 | } |
96 | |
97 | IOHANDLE io_stderr() |
98 | { |
99 | return stderr; |
100 | } |
101 | |
102 | IOHANDLE io_current_exe() |
103 | { |
104 | // From https://stackoverflow.com/a/1024937. |
105 | #if defined(CONF_FAMILY_WINDOWS) |
106 | wchar_t wide_path[IO_MAX_PATH_LENGTH]; |
107 | if(GetModuleFileNameW(NULL, wide_path, std::size(wide_path)) == 0 || GetLastError() != ERROR_SUCCESS) |
108 | { |
109 | return 0; |
110 | } |
111 | const std::optional<std::string> path = windows_wide_to_utf8(wide_path); |
112 | return path.has_value() ? io_open(path.value().c_str(), IOFLAG_READ) : 0; |
113 | #elif defined(CONF_PLATFORM_MACOS) |
114 | char path[IO_MAX_PATH_LENGTH]; |
115 | uint32_t path_size = sizeof(path); |
116 | if(_NSGetExecutablePath(path, &path_size)) |
117 | { |
118 | return 0; |
119 | } |
120 | return io_open(path, IOFLAG_READ); |
121 | #else |
122 | static const char *NAMES[] = { |
123 | "/proc/self/exe" , // Linux, Android |
124 | "/proc/curproc/exe" , // NetBSD |
125 | "/proc/curproc/file" , // DragonFly |
126 | }; |
127 | for(auto &name : NAMES) |
128 | { |
129 | IOHANDLE result = io_open(filename: name, flags: IOFLAG_READ); |
130 | if(result) |
131 | { |
132 | return result; |
133 | } |
134 | } |
135 | return 0; |
136 | #endif |
137 | } |
138 | |
139 | static NETSTATS network_stats = {.sent_packets: 0}; |
140 | |
141 | #define VLEN 128 |
142 | #define PACKETSIZE 1400 |
143 | typedef struct |
144 | { |
145 | #ifdef CONF_PLATFORM_LINUX |
146 | int pos; |
147 | int size; |
148 | struct mmsghdr msgs[VLEN]; |
149 | struct iovec iovecs[VLEN]; |
150 | char bufs[VLEN][PACKETSIZE]; |
151 | char sockaddrs[VLEN][128]; |
152 | #else |
153 | char buf[PACKETSIZE]; |
154 | #endif |
155 | } NETSOCKET_BUFFER; |
156 | |
157 | void net_buffer_init(NETSOCKET_BUFFER *buffer); |
158 | void net_buffer_reinit(NETSOCKET_BUFFER *buffer); |
159 | void net_buffer_simple(NETSOCKET_BUFFER *buffer, char **buf, int *size); |
160 | |
161 | struct NETSOCKET_INTERNAL |
162 | { |
163 | int type; |
164 | int ipv4sock; |
165 | int ipv6sock; |
166 | int web_ipv4sock; |
167 | |
168 | NETSOCKET_BUFFER buffer; |
169 | }; |
170 | static NETSOCKET_INTERNAL invalid_socket = {.type: NETTYPE_INVALID, .ipv4sock: -1, .ipv6sock: -1, .web_ipv4sock: -1}; |
171 | |
172 | #define AF_WEBSOCKET_INET (0xee) |
173 | |
174 | std::atomic_bool dbg_assert_failing = false; |
175 | DBG_ASSERT_HANDLER dbg_assert_handler; |
176 | |
177 | bool dbg_assert_has_failed() |
178 | { |
179 | return dbg_assert_failing.load(m: std::memory_order_acquire); |
180 | } |
181 | |
182 | void dbg_assert_imp(const char *filename, int line, bool test, const char *msg) |
183 | { |
184 | if(!test) |
185 | { |
186 | const bool already_failing = dbg_assert_has_failed(); |
187 | dbg_assert_failing.store(i: true, m: std::memory_order_release); |
188 | char error[512]; |
189 | str_format(buffer: error, buffer_size: sizeof(error), format: "%s(%d): %s" , filename, line, msg); |
190 | dbg_msg(sys: "assert" , fmt: "%s" , error); |
191 | if(!already_failing) |
192 | { |
193 | DBG_ASSERT_HANDLER handler = dbg_assert_handler; |
194 | if(handler) |
195 | handler(error); |
196 | } |
197 | log_global_logger_finish(); |
198 | dbg_break(); |
199 | } |
200 | } |
201 | |
202 | void dbg_break() |
203 | { |
204 | #ifdef __GNUC__ |
205 | __builtin_trap(); |
206 | #else |
207 | abort(); |
208 | #endif |
209 | } |
210 | |
211 | void dbg_assert_set_handler(DBG_ASSERT_HANDLER handler) |
212 | { |
213 | dbg_assert_handler = std::move(handler); |
214 | } |
215 | |
216 | void dbg_msg(const char *sys, const char *fmt, ...) |
217 | { |
218 | va_list args; |
219 | va_start(args, fmt); |
220 | log_log_v(level: LEVEL_INFO, sys, fmt, args); |
221 | va_end(args); |
222 | } |
223 | |
224 | /* */ |
225 | |
226 | void mem_copy(void *dest, const void *source, size_t size) |
227 | { |
228 | memcpy(dest: dest, src: source, n: size); |
229 | } |
230 | |
231 | void mem_move(void *dest, const void *source, size_t size) |
232 | { |
233 | memmove(dest: dest, src: source, n: size); |
234 | } |
235 | |
236 | int mem_comp(const void *a, const void *b, size_t size) |
237 | { |
238 | return memcmp(s1: a, s2: b, n: size); |
239 | } |
240 | |
241 | bool mem_has_null(const void *block, size_t size) |
242 | { |
243 | const unsigned char *bytes = (const unsigned char *)block; |
244 | for(size_t i = 0; i < size; i++) |
245 | { |
246 | if(bytes[i] == 0) |
247 | { |
248 | return true; |
249 | } |
250 | } |
251 | return false; |
252 | } |
253 | |
254 | IOHANDLE io_open(const char *filename, int flags) |
255 | { |
256 | dbg_assert(flags == IOFLAG_READ || flags == IOFLAG_WRITE || flags == IOFLAG_APPEND, "flags must be read, write or append" ); |
257 | #if defined(CONF_FAMILY_WINDOWS) |
258 | const std::wstring wide_filename = windows_utf8_to_wide(filename); |
259 | DWORD desired_access; |
260 | DWORD creation_disposition; |
261 | const char *open_mode; |
262 | if((flags & IOFLAG_READ) != 0) |
263 | { |
264 | desired_access = FILE_READ_DATA; |
265 | creation_disposition = OPEN_EXISTING; |
266 | open_mode = "rb" ; |
267 | } |
268 | else if(flags == IOFLAG_WRITE) |
269 | { |
270 | desired_access = FILE_WRITE_DATA; |
271 | creation_disposition = CREATE_ALWAYS; |
272 | open_mode = "wb" ; |
273 | } |
274 | else if(flags == IOFLAG_APPEND) |
275 | { |
276 | desired_access = FILE_APPEND_DATA; |
277 | creation_disposition = OPEN_ALWAYS; |
278 | open_mode = "ab" ; |
279 | } |
280 | else |
281 | { |
282 | dbg_assert(false, "logic error" ); |
283 | return nullptr; |
284 | } |
285 | HANDLE handle = CreateFileW(wide_filename.c_str(), desired_access, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, creation_disposition, FILE_ATTRIBUTE_NORMAL, nullptr); |
286 | if(handle == INVALID_HANDLE_VALUE) |
287 | return nullptr; |
288 | const int file_descriptor = _open_osfhandle((intptr_t)handle, 0); |
289 | dbg_assert(file_descriptor != -1, "_open_osfhandle failure" ); |
290 | FILE *file_stream = _fdopen(file_descriptor, open_mode); |
291 | dbg_assert(file_stream != nullptr, "_fdopen failure" ); |
292 | return file_stream; |
293 | #else |
294 | const char *open_mode; |
295 | if((flags & IOFLAG_READ) != 0) |
296 | { |
297 | open_mode = "rb" ; |
298 | } |
299 | else if(flags == IOFLAG_WRITE) |
300 | { |
301 | open_mode = "wb" ; |
302 | } |
303 | else if(flags == IOFLAG_APPEND) |
304 | { |
305 | open_mode = "ab" ; |
306 | } |
307 | else |
308 | { |
309 | dbg_assert(false, "logic error" ); |
310 | return nullptr; |
311 | } |
312 | return fopen(filename: filename, modes: open_mode); |
313 | #endif |
314 | } |
315 | |
316 | unsigned io_read(IOHANDLE io, void *buffer, unsigned size) |
317 | { |
318 | return fread(ptr: buffer, size: 1, n: size, stream: (FILE *)io); |
319 | } |
320 | |
321 | void io_read_all(IOHANDLE io, void **result, unsigned *result_len) |
322 | { |
323 | long signed_len = io_length(io); |
324 | unsigned len = signed_len < 0 ? 1024 : (unsigned)signed_len; // use default initial size if we couldn't get the length |
325 | char *buffer = (char *)malloc(size: len + 1); |
326 | unsigned read = io_read(io, buffer, size: len + 1); // +1 to check if the file size is larger than expected |
327 | if(read < len) |
328 | { |
329 | buffer = (char *)realloc(ptr: buffer, size: read + 1); |
330 | len = read; |
331 | } |
332 | else if(read > len) |
333 | { |
334 | unsigned cap = 2 * read; |
335 | len = read; |
336 | buffer = (char *)realloc(ptr: buffer, size: cap); |
337 | while((read = io_read(io, buffer: buffer + len, size: cap - len)) != 0) |
338 | { |
339 | len += read; |
340 | if(len == cap) |
341 | { |
342 | cap *= 2; |
343 | buffer = (char *)realloc(ptr: buffer, size: cap); |
344 | } |
345 | } |
346 | buffer = (char *)realloc(ptr: buffer, size: len + 1); |
347 | } |
348 | buffer[len] = 0; |
349 | *result = buffer; |
350 | *result_len = len; |
351 | } |
352 | |
353 | char *io_read_all_str(IOHANDLE io) |
354 | { |
355 | void *buffer; |
356 | unsigned len; |
357 | io_read_all(io, result: &buffer, result_len: &len); |
358 | if(mem_has_null(block: buffer, size: len)) |
359 | { |
360 | free(ptr: buffer); |
361 | return nullptr; |
362 | } |
363 | return (char *)buffer; |
364 | } |
365 | |
366 | int io_skip(IOHANDLE io, int size) |
367 | { |
368 | return io_seek(io, offset: size, origin: IOSEEK_CUR); |
369 | } |
370 | |
371 | int io_seek(IOHANDLE io, int offset, int origin) |
372 | { |
373 | int real_origin; |
374 | switch(origin) |
375 | { |
376 | case IOSEEK_START: |
377 | real_origin = SEEK_SET; |
378 | break; |
379 | case IOSEEK_CUR: |
380 | real_origin = SEEK_CUR; |
381 | break; |
382 | case IOSEEK_END: |
383 | real_origin = SEEK_END; |
384 | break; |
385 | default: |
386 | dbg_assert(false, "origin invalid" ); |
387 | return -1; |
388 | } |
389 | return fseek(stream: (FILE *)io, off: offset, whence: real_origin); |
390 | } |
391 | |
392 | long int io_tell(IOHANDLE io) |
393 | { |
394 | return ftell(stream: (FILE *)io); |
395 | } |
396 | |
397 | long int io_length(IOHANDLE io) |
398 | { |
399 | long int length; |
400 | io_seek(io, offset: 0, origin: IOSEEK_END); |
401 | length = io_tell(io); |
402 | io_seek(io, offset: 0, origin: IOSEEK_START); |
403 | return length; |
404 | } |
405 | |
406 | int io_error(IOHANDLE io) |
407 | { |
408 | return ferror(stream: (FILE *)io); |
409 | } |
410 | |
411 | unsigned io_write(IOHANDLE io, const void *buffer, unsigned size) |
412 | { |
413 | return fwrite(ptr: buffer, size: 1, n: size, s: (FILE *)io); |
414 | } |
415 | |
416 | bool io_write_newline(IOHANDLE io) |
417 | { |
418 | #if defined(CONF_FAMILY_WINDOWS) |
419 | return io_write(io, "\r\n" , 2) == 2; |
420 | #else |
421 | return io_write(io, buffer: "\n" , size: 1) == 1; |
422 | #endif |
423 | } |
424 | |
425 | int io_close(IOHANDLE io) |
426 | { |
427 | return fclose(stream: (FILE *)io) != 0; |
428 | } |
429 | |
430 | int io_flush(IOHANDLE io) |
431 | { |
432 | return fflush(stream: (FILE *)io); |
433 | } |
434 | |
435 | int io_sync(IOHANDLE io) |
436 | { |
437 | if(io_flush(io)) |
438 | { |
439 | return 1; |
440 | } |
441 | #if defined(CONF_FAMILY_WINDOWS) |
442 | return FlushFileBuffers((HANDLE)_get_osfhandle(_fileno((FILE *)io))) == FALSE; |
443 | #else |
444 | return fsync(fd: fileno(stream: (FILE *)io)) != 0; |
445 | #endif |
446 | } |
447 | |
448 | #define ASYNC_BUFSIZE (8 * 1024) |
449 | #define ASYNC_LOCAL_BUFSIZE (64 * 1024) |
450 | |
451 | struct ASYNCIO |
452 | { |
453 | CLock lock; |
454 | IOHANDLE io; |
455 | SEMAPHORE sphore; |
456 | void *thread; |
457 | |
458 | unsigned char *buffer; |
459 | unsigned int buffer_size; |
460 | unsigned int read_pos; |
461 | unsigned int write_pos; |
462 | |
463 | int error; |
464 | unsigned char finish; |
465 | unsigned char refcount; |
466 | }; |
467 | |
468 | enum |
469 | { |
470 | ASYNCIO_RUNNING, |
471 | ASYNCIO_CLOSE, |
472 | ASYNCIO_EXIT, |
473 | }; |
474 | |
475 | struct BUFFERS |
476 | { |
477 | unsigned char *buf1; |
478 | unsigned int len1; |
479 | unsigned char *buf2; |
480 | unsigned int len2; |
481 | }; |
482 | |
483 | static void buffer_ptrs(ASYNCIO *aio, struct BUFFERS *buffers) |
484 | { |
485 | mem_zero(block: buffers, size: sizeof(*buffers)); |
486 | if(aio->read_pos < aio->write_pos) |
487 | { |
488 | buffers->buf1 = aio->buffer + aio->read_pos; |
489 | buffers->len1 = aio->write_pos - aio->read_pos; |
490 | } |
491 | else if(aio->read_pos > aio->write_pos) |
492 | { |
493 | buffers->buf1 = aio->buffer + aio->read_pos; |
494 | buffers->len1 = aio->buffer_size - aio->read_pos; |
495 | buffers->buf2 = aio->buffer; |
496 | buffers->len2 = aio->write_pos; |
497 | } |
498 | } |
499 | |
500 | static void aio_handle_free_and_unlock(ASYNCIO *aio) RELEASE(aio->lock) |
501 | { |
502 | int do_free; |
503 | aio->refcount--; |
504 | |
505 | do_free = aio->refcount == 0; |
506 | aio->lock.unlock(); |
507 | if(do_free) |
508 | { |
509 | free(ptr: aio->buffer); |
510 | sphore_destroy(sem: &aio->sphore); |
511 | delete aio; |
512 | } |
513 | } |
514 | |
515 | static void aio_thread(void *user) |
516 | { |
517 | ASYNCIO *aio = (ASYNCIO *)user; |
518 | |
519 | aio->lock.lock(); |
520 | while(true) |
521 | { |
522 | struct BUFFERS buffers; |
523 | int result_io_error; |
524 | unsigned char local_buffer[ASYNC_LOCAL_BUFSIZE]; |
525 | unsigned int local_buffer_len = 0; |
526 | |
527 | if(aio->read_pos == aio->write_pos) |
528 | { |
529 | if(aio->finish != ASYNCIO_RUNNING) |
530 | { |
531 | if(aio->finish == ASYNCIO_CLOSE) |
532 | { |
533 | io_close(io: aio->io); |
534 | } |
535 | aio_handle_free_and_unlock(aio); |
536 | break; |
537 | } |
538 | aio->lock.unlock(); |
539 | sphore_wait(sem: &aio->sphore); |
540 | aio->lock.lock(); |
541 | continue; |
542 | } |
543 | |
544 | buffer_ptrs(aio, buffers: &buffers); |
545 | if(buffers.buf1) |
546 | { |
547 | if(buffers.len1 > sizeof(local_buffer) - local_buffer_len) |
548 | { |
549 | buffers.len1 = sizeof(local_buffer) - local_buffer_len; |
550 | } |
551 | mem_copy(dest: local_buffer + local_buffer_len, source: buffers.buf1, size: buffers.len1); |
552 | local_buffer_len += buffers.len1; |
553 | if(buffers.buf2) |
554 | { |
555 | if(buffers.len2 > sizeof(local_buffer) - local_buffer_len) |
556 | { |
557 | buffers.len2 = sizeof(local_buffer) - local_buffer_len; |
558 | } |
559 | mem_copy(dest: local_buffer + local_buffer_len, source: buffers.buf2, size: buffers.len2); |
560 | local_buffer_len += buffers.len2; |
561 | } |
562 | } |
563 | aio->read_pos = (aio->read_pos + buffers.len1 + buffers.len2) % aio->buffer_size; |
564 | aio->lock.unlock(); |
565 | |
566 | io_write(io: aio->io, buffer: local_buffer, size: local_buffer_len); |
567 | io_flush(io: aio->io); |
568 | result_io_error = io_error(io: aio->io); |
569 | |
570 | aio->lock.lock(); |
571 | aio->error = result_io_error; |
572 | } |
573 | } |
574 | |
575 | ASYNCIO *aio_new(IOHANDLE io) |
576 | { |
577 | ASYNCIO *aio = new ASYNCIO; |
578 | if(!aio) |
579 | { |
580 | return 0; |
581 | } |
582 | aio->io = io; |
583 | sphore_init(sem: &aio->sphore); |
584 | aio->thread = 0; |
585 | |
586 | aio->buffer = (unsigned char *)malloc(ASYNC_BUFSIZE); |
587 | if(!aio->buffer) |
588 | { |
589 | sphore_destroy(sem: &aio->sphore); |
590 | delete aio; |
591 | return 0; |
592 | } |
593 | aio->buffer_size = ASYNC_BUFSIZE; |
594 | aio->read_pos = 0; |
595 | aio->write_pos = 0; |
596 | aio->error = 0; |
597 | aio->finish = ASYNCIO_RUNNING; |
598 | aio->refcount = 2; |
599 | |
600 | aio->thread = thread_init(threadfunc: aio_thread, user: aio, name: "aio" ); |
601 | if(!aio->thread) |
602 | { |
603 | free(ptr: aio->buffer); |
604 | sphore_destroy(sem: &aio->sphore); |
605 | delete aio; |
606 | return 0; |
607 | } |
608 | return aio; |
609 | } |
610 | |
611 | static unsigned int buffer_len(ASYNCIO *aio) |
612 | { |
613 | if(aio->write_pos >= aio->read_pos) |
614 | { |
615 | return aio->write_pos - aio->read_pos; |
616 | } |
617 | else |
618 | { |
619 | return aio->buffer_size + aio->write_pos - aio->read_pos; |
620 | } |
621 | } |
622 | |
623 | static unsigned int next_buffer_size(unsigned int cur_size, unsigned int need_size) |
624 | { |
625 | while(cur_size < need_size) |
626 | { |
627 | cur_size *= 2; |
628 | } |
629 | return cur_size; |
630 | } |
631 | |
632 | void aio_lock(ASYNCIO *aio) ACQUIRE(aio->lock) |
633 | { |
634 | aio->lock.lock(); |
635 | } |
636 | |
637 | void aio_unlock(ASYNCIO *aio) RELEASE(aio->lock) |
638 | { |
639 | aio->lock.unlock(); |
640 | sphore_signal(sem: &aio->sphore); |
641 | } |
642 | |
643 | void aio_write_unlocked(ASYNCIO *aio, const void *buffer, unsigned size) |
644 | { |
645 | unsigned int remaining; |
646 | remaining = aio->buffer_size - buffer_len(aio); |
647 | |
648 | // Don't allow full queue to distinguish between empty and full queue. |
649 | if(size < remaining) |
650 | { |
651 | unsigned int remaining_contiguous = aio->buffer_size - aio->write_pos; |
652 | if(size > remaining_contiguous) |
653 | { |
654 | mem_copy(dest: aio->buffer + aio->write_pos, source: buffer, size: remaining_contiguous); |
655 | size -= remaining_contiguous; |
656 | buffer = ((unsigned char *)buffer) + remaining_contiguous; |
657 | aio->write_pos = 0; |
658 | } |
659 | mem_copy(dest: aio->buffer + aio->write_pos, source: buffer, size); |
660 | aio->write_pos = (aio->write_pos + size) % aio->buffer_size; |
661 | } |
662 | else |
663 | { |
664 | // Add 1 so the new buffer isn't completely filled. |
665 | unsigned int new_written = buffer_len(aio) + size + 1; |
666 | unsigned int next_size = next_buffer_size(cur_size: aio->buffer_size, need_size: new_written); |
667 | unsigned int next_len = 0; |
668 | unsigned char *next_buffer = (unsigned char *)malloc(size: next_size); |
669 | |
670 | struct BUFFERS buffers; |
671 | buffer_ptrs(aio, buffers: &buffers); |
672 | if(buffers.buf1) |
673 | { |
674 | mem_copy(dest: next_buffer + next_len, source: buffers.buf1, size: buffers.len1); |
675 | next_len += buffers.len1; |
676 | if(buffers.buf2) |
677 | { |
678 | mem_copy(dest: next_buffer + next_len, source: buffers.buf2, size: buffers.len2); |
679 | next_len += buffers.len2; |
680 | } |
681 | } |
682 | mem_copy(dest: next_buffer + next_len, source: buffer, size); |
683 | next_len += size; |
684 | |
685 | free(ptr: aio->buffer); |
686 | aio->buffer = next_buffer; |
687 | aio->buffer_size = next_size; |
688 | aio->read_pos = 0; |
689 | aio->write_pos = next_len; |
690 | } |
691 | } |
692 | |
693 | void aio_write(ASYNCIO *aio, const void *buffer, unsigned size) |
694 | { |
695 | aio_lock(aio); |
696 | aio_write_unlocked(aio, buffer, size); |
697 | aio_unlock(aio); |
698 | } |
699 | |
700 | void aio_write_newline_unlocked(ASYNCIO *aio) |
701 | { |
702 | #if defined(CONF_FAMILY_WINDOWS) |
703 | aio_write_unlocked(aio, "\r\n" , 2); |
704 | #else |
705 | aio_write_unlocked(aio, buffer: "\n" , size: 1); |
706 | #endif |
707 | } |
708 | |
709 | void aio_write_newline(ASYNCIO *aio) |
710 | { |
711 | aio_lock(aio); |
712 | aio_write_newline_unlocked(aio); |
713 | aio_unlock(aio); |
714 | } |
715 | |
716 | int aio_error(ASYNCIO *aio) |
717 | { |
718 | CLockScope ls(aio->lock); |
719 | return aio->error; |
720 | } |
721 | |
722 | void aio_free(ASYNCIO *aio) |
723 | { |
724 | aio->lock.lock(); |
725 | if(aio->thread) |
726 | { |
727 | thread_detach(thread: aio->thread); |
728 | aio->thread = 0; |
729 | } |
730 | aio_handle_free_and_unlock(aio); |
731 | } |
732 | |
733 | void aio_close(ASYNCIO *aio) |
734 | { |
735 | { |
736 | CLockScope ls(aio->lock); |
737 | aio->finish = ASYNCIO_CLOSE; |
738 | } |
739 | sphore_signal(sem: &aio->sphore); |
740 | } |
741 | |
742 | void aio_wait(ASYNCIO *aio) |
743 | { |
744 | void *thread; |
745 | { |
746 | CLockScope ls(aio->lock); |
747 | thread = aio->thread; |
748 | aio->thread = 0; |
749 | if(aio->finish == ASYNCIO_RUNNING) |
750 | { |
751 | aio->finish = ASYNCIO_EXIT; |
752 | } |
753 | } |
754 | sphore_signal(sem: &aio->sphore); |
755 | thread_wait(thread); |
756 | } |
757 | |
758 | struct THREAD_RUN |
759 | { |
760 | void (*threadfunc)(void *); |
761 | void *u; |
762 | }; |
763 | |
764 | #if defined(CONF_FAMILY_UNIX) |
765 | static void *thread_run(void *user) |
766 | #elif defined(CONF_FAMILY_WINDOWS) |
767 | static unsigned long __stdcall thread_run(void *user) |
768 | #else |
769 | #error not implemented |
770 | #endif |
771 | { |
772 | #if defined(CONF_FAMILY_WINDOWS) |
773 | CWindowsComLifecycle WindowsComLifecycle(false); |
774 | #endif |
775 | struct THREAD_RUN *data = (THREAD_RUN *)user; |
776 | void (*threadfunc)(void *) = data->threadfunc; |
777 | void *u = data->u; |
778 | free(ptr: data); |
779 | threadfunc(u); |
780 | return 0; |
781 | } |
782 | |
783 | void *thread_init(void (*threadfunc)(void *), void *u, const char *name) |
784 | { |
785 | struct THREAD_RUN *data = (THREAD_RUN *)malloc(size: sizeof(*data)); |
786 | data->threadfunc = threadfunc; |
787 | data->u = u; |
788 | #if defined(CONF_FAMILY_UNIX) |
789 | { |
790 | pthread_attr_t attr; |
791 | dbg_assert(pthread_attr_init(&attr) == 0, "pthread_attr_init failure" ); |
792 | #if defined(CONF_PLATFORM_MACOS) && defined(__MAC_10_10) && __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10 |
793 | dbg_assert(pthread_attr_set_qos_class_np(&attr, QOS_CLASS_USER_INTERACTIVE, 0) == 0, "pthread_attr_set_qos_class_np failure" ); |
794 | #endif |
795 | pthread_t id; |
796 | dbg_assert(pthread_create(&id, &attr, thread_run, data) == 0, "pthread_create failure" ); |
797 | return (void *)id; |
798 | } |
799 | #elif defined(CONF_FAMILY_WINDOWS) |
800 | HANDLE thread = CreateThread(nullptr, 0, thread_run, data, 0, nullptr); |
801 | dbg_assert(thread != nullptr, "CreateThread failure" ); |
802 | // TODO: Set thread name using SetThreadDescription (would require minimum Windows 10 version 1607) |
803 | return thread; |
804 | #else |
805 | #error not implemented |
806 | #endif |
807 | } |
808 | |
809 | void thread_wait(void *thread) |
810 | { |
811 | #if defined(CONF_FAMILY_UNIX) |
812 | dbg_assert(pthread_join((pthread_t)thread, nullptr) == 0, "pthread_join failure" ); |
813 | #elif defined(CONF_FAMILY_WINDOWS) |
814 | dbg_assert(WaitForSingleObject((HANDLE)thread, INFINITE) == WAIT_OBJECT_0, "WaitForSingleObject failure" ); |
815 | dbg_assert(CloseHandle(thread), "CloseHandle failure" ); |
816 | #else |
817 | #error not implemented |
818 | #endif |
819 | } |
820 | |
821 | void thread_yield() |
822 | { |
823 | #if defined(CONF_FAMILY_UNIX) |
824 | dbg_assert(sched_yield() == 0, "sched_yield failure" ); |
825 | #elif defined(CONF_FAMILY_WINDOWS) |
826 | Sleep(0); |
827 | #else |
828 | #error not implemented |
829 | #endif |
830 | } |
831 | |
832 | void thread_detach(void *thread) |
833 | { |
834 | #if defined(CONF_FAMILY_UNIX) |
835 | dbg_assert(pthread_detach((pthread_t)thread) == 0, "pthread_detach failure" ); |
836 | #elif defined(CONF_FAMILY_WINDOWS) |
837 | dbg_assert(CloseHandle(thread), "CloseHandle failure" ); |
838 | #else |
839 | #error not implemented |
840 | #endif |
841 | } |
842 | |
843 | void thread_init_and_detach(void (*threadfunc)(void *), void *u, const char *name) |
844 | { |
845 | void *thread = thread_init(threadfunc, u, name); |
846 | thread_detach(thread); |
847 | } |
848 | |
849 | #if defined(CONF_FAMILY_WINDOWS) |
850 | void sphore_init(SEMAPHORE *sem) |
851 | { |
852 | *sem = CreateSemaphoreW(nullptr, 0, std::numeric_limits<LONG>::max(), nullptr); |
853 | dbg_assert(*sem != nullptr, "CreateSemaphoreW failure" ); |
854 | } |
855 | void sphore_wait(SEMAPHORE *sem) |
856 | { |
857 | dbg_assert(WaitForSingleObject((HANDLE)*sem, INFINITE) == WAIT_OBJECT_0, "WaitForSingleObject failure" ); |
858 | } |
859 | void sphore_signal(SEMAPHORE *sem) |
860 | { |
861 | dbg_assert(ReleaseSemaphore((HANDLE)*sem, 1, nullptr), "ReleaseSemaphore failure" ); |
862 | } |
863 | void sphore_destroy(SEMAPHORE *sem) |
864 | { |
865 | dbg_assert(CloseHandle((HANDLE)*sem), "CloseHandle failure" ); |
866 | } |
867 | #elif defined(CONF_PLATFORM_MACOS) |
868 | void sphore_init(SEMAPHORE *sem) |
869 | { |
870 | char aBuf[32]; |
871 | str_format(aBuf, sizeof(aBuf), "%p" , (void *)sem); |
872 | *sem = sem_open(aBuf, O_CREAT | O_EXCL, S_IRWXU | S_IRWXG, 0); |
873 | dbg_assert(*sem != SEM_FAILED, "sem_open failure" ); |
874 | } |
875 | void sphore_wait(SEMAPHORE *sem) |
876 | { |
877 | while(true) |
878 | { |
879 | if(sem_wait(*sem) == 0) |
880 | break; |
881 | dbg_assert(errno == EINTR, "sem_wait failure" ); |
882 | } |
883 | } |
884 | void sphore_signal(SEMAPHORE *sem) |
885 | { |
886 | dbg_assert(sem_post(*sem) == 0, "sem_post failure" ); |
887 | } |
888 | void sphore_destroy(SEMAPHORE *sem) |
889 | { |
890 | dbg_assert(sem_close(*sem) == 0, "sem_close failure" ); |
891 | char aBuf[32]; |
892 | str_format(aBuf, sizeof(aBuf), "%p" , (void *)sem); |
893 | dbg_assert(sem_unlink(aBuf) == 0, "sem_unlink failure" ); |
894 | } |
895 | #elif defined(CONF_FAMILY_UNIX) |
896 | void sphore_init(SEMAPHORE *sem) |
897 | { |
898 | dbg_assert(sem_init(sem, 0, 0) == 0, "sem_init failure" ); |
899 | } |
900 | void sphore_wait(SEMAPHORE *sem) |
901 | { |
902 | while(true) |
903 | { |
904 | if(sem_wait(sem: sem) == 0) |
905 | break; |
906 | dbg_assert(errno == EINTR, "sem_wait failure" ); |
907 | } |
908 | } |
909 | void sphore_signal(SEMAPHORE *sem) |
910 | { |
911 | dbg_assert(sem_post(sem) == 0, "sem_post failure" ); |
912 | } |
913 | void sphore_destroy(SEMAPHORE *sem) |
914 | { |
915 | dbg_assert(sem_destroy(sem) == 0, "sem_destroy failure" ); |
916 | } |
917 | #endif |
918 | |
919 | static int new_tick = -1; |
920 | |
921 | void set_new_tick() |
922 | { |
923 | new_tick = 1; |
924 | } |
925 | |
926 | /* ----- time ----- */ |
927 | static_assert(std::chrono::steady_clock::is_steady, "Compiler does not support steady clocks, it might be out of date." ); |
928 | static_assert(std::chrono::steady_clock::period::den / std::chrono::steady_clock::period::num >= 1000000000, "Compiler has a bad timer precision and might be out of date." ); |
929 | static const std::chrono::time_point<std::chrono::steady_clock> tw_start_time = std::chrono::steady_clock::now(); |
930 | |
931 | int64_t time_get_impl() |
932 | { |
933 | return std::chrono::duration_cast<std::chrono::nanoseconds>(d: std::chrono::steady_clock::now() - tw_start_time).count(); |
934 | } |
935 | |
936 | int64_t time_get() |
937 | { |
938 | static int64_t last = 0; |
939 | if(new_tick == 0) |
940 | return last; |
941 | if(new_tick != -1) |
942 | new_tick = 0; |
943 | |
944 | last = time_get_impl(); |
945 | return last; |
946 | } |
947 | |
948 | int64_t time_freq() |
949 | { |
950 | using namespace std::chrono_literals; |
951 | return std::chrono::nanoseconds(1s).count(); |
952 | } |
953 | |
954 | /* ----- network ----- */ |
955 | |
956 | const NETADDR NETADDR_ZEROED = {.type: NETTYPE_INVALID, .ip: {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, .port: 0}; |
957 | |
958 | static void netaddr_to_sockaddr_in(const NETADDR *src, struct sockaddr_in *dest) |
959 | { |
960 | mem_zero(block: dest, size: sizeof(struct sockaddr_in)); |
961 | if(src->type != NETTYPE_IPV4 && src->type != NETTYPE_WEBSOCKET_IPV4) |
962 | { |
963 | dbg_msg(sys: "system" , fmt: "couldn't convert NETADDR of type %d to ipv4" , src->type); |
964 | return; |
965 | } |
966 | |
967 | dest->sin_family = AF_INET; |
968 | dest->sin_port = htons(hostshort: src->port); |
969 | mem_copy(dest: &dest->sin_addr.s_addr, source: src->ip, size: 4); |
970 | } |
971 | |
972 | static void netaddr_to_sockaddr_in6(const NETADDR *src, struct sockaddr_in6 *dest) |
973 | { |
974 | mem_zero(block: dest, size: sizeof(struct sockaddr_in6)); |
975 | if(src->type != NETTYPE_IPV6) |
976 | { |
977 | dbg_msg(sys: "system" , fmt: "couldn't not convert NETADDR of type %d to ipv6" , src->type); |
978 | return; |
979 | } |
980 | |
981 | dest->sin6_family = AF_INET6; |
982 | dest->sin6_port = htons(hostshort: src->port); |
983 | mem_copy(dest: &dest->sin6_addr.s6_addr, source: src->ip, size: 16); |
984 | } |
985 | |
986 | static void sockaddr_to_netaddr(const struct sockaddr *src, NETADDR *dst) |
987 | { |
988 | if(src->sa_family == AF_INET) |
989 | { |
990 | mem_zero(block: dst, size: sizeof(NETADDR)); |
991 | dst->type = NETTYPE_IPV4; |
992 | dst->port = htons(hostshort: ((struct sockaddr_in *)src)->sin_port); |
993 | mem_copy(dest: dst->ip, source: &((struct sockaddr_in *)src)->sin_addr.s_addr, size: 4); |
994 | } |
995 | else if(src->sa_family == AF_WEBSOCKET_INET) |
996 | { |
997 | mem_zero(block: dst, size: sizeof(NETADDR)); |
998 | dst->type = NETTYPE_WEBSOCKET_IPV4; |
999 | dst->port = htons(hostshort: ((struct sockaddr_in *)src)->sin_port); |
1000 | mem_copy(dest: dst->ip, source: &((struct sockaddr_in *)src)->sin_addr.s_addr, size: 4); |
1001 | } |
1002 | else if(src->sa_family == AF_INET6) |
1003 | { |
1004 | mem_zero(block: dst, size: sizeof(NETADDR)); |
1005 | dst->type = NETTYPE_IPV6; |
1006 | dst->port = htons(hostshort: ((struct sockaddr_in6 *)src)->sin6_port); |
1007 | mem_copy(dest: dst->ip, source: &((struct sockaddr_in6 *)src)->sin6_addr.s6_addr, size: 16); |
1008 | } |
1009 | else |
1010 | { |
1011 | mem_zero(block: dst, size: sizeof(struct sockaddr)); |
1012 | dbg_msg(sys: "system" , fmt: "couldn't convert sockaddr of family %d" , src->sa_family); |
1013 | } |
1014 | } |
1015 | |
1016 | int net_addr_comp(const NETADDR *a, const NETADDR *b) |
1017 | { |
1018 | return mem_comp(a, b, size: sizeof(NETADDR)); |
1019 | } |
1020 | |
1021 | bool NETADDR::operator==(const NETADDR &other) const |
1022 | { |
1023 | return net_addr_comp(a: this, b: &other) == 0; |
1024 | } |
1025 | |
1026 | int net_addr_comp_noport(const NETADDR *a, const NETADDR *b) |
1027 | { |
1028 | NETADDR ta = *a, tb = *b; |
1029 | ta.port = tb.port = 0; |
1030 | |
1031 | return net_addr_comp(a: &ta, b: &tb); |
1032 | } |
1033 | |
1034 | void net_addr_str_v6(const unsigned short ip[8], int port, char *buffer, int buffer_size) |
1035 | { |
1036 | int longest_seq_len = 0; |
1037 | int longest_seq_start = -1; |
1038 | int w = 0; |
1039 | int i; |
1040 | { |
1041 | int seq_len = 0; |
1042 | int seq_start = -1; |
1043 | // Determine longest sequence of zeros. |
1044 | for(i = 0; i < 8 + 1; i++) |
1045 | { |
1046 | if(seq_start != -1) |
1047 | { |
1048 | if(i == 8 || ip[i] != 0) |
1049 | { |
1050 | if(longest_seq_len < seq_len) |
1051 | { |
1052 | longest_seq_len = seq_len; |
1053 | longest_seq_start = seq_start; |
1054 | } |
1055 | seq_len = 0; |
1056 | seq_start = -1; |
1057 | } |
1058 | else |
1059 | { |
1060 | seq_len += 1; |
1061 | } |
1062 | } |
1063 | else |
1064 | { |
1065 | if(i != 8 && ip[i] == 0) |
1066 | { |
1067 | seq_start = i; |
1068 | seq_len = 1; |
1069 | } |
1070 | } |
1071 | } |
1072 | } |
1073 | if(longest_seq_len <= 1) |
1074 | { |
1075 | longest_seq_len = 0; |
1076 | longest_seq_start = -1; |
1077 | } |
1078 | w += str_copy(dst: buffer + w, src: "[" , dst_size: buffer_size - w); |
1079 | for(i = 0; i < 8; i++) |
1080 | { |
1081 | if(longest_seq_start <= i && i < longest_seq_start + longest_seq_len) |
1082 | { |
1083 | if(i == longest_seq_start) |
1084 | { |
1085 | w += str_copy(dst: buffer + w, src: "::" , dst_size: buffer_size - w); |
1086 | } |
1087 | } |
1088 | else |
1089 | { |
1090 | const char *colon = (i == 0 || i == longest_seq_start + longest_seq_len) ? "" : ":" ; |
1091 | w += str_format(buffer: buffer + w, buffer_size: buffer_size - w, format: "%s%x" , colon, ip[i]); |
1092 | } |
1093 | } |
1094 | w += str_copy(dst: buffer + w, src: "]" , dst_size: buffer_size - w); |
1095 | if(port >= 0) |
1096 | { |
1097 | str_format(buffer: buffer + w, buffer_size: buffer_size - w, format: ":%d" , port); |
1098 | } |
1099 | } |
1100 | |
1101 | void net_addr_str(const NETADDR *addr, char *string, int max_length, int add_port) |
1102 | { |
1103 | if(addr->type == NETTYPE_IPV4 || addr->type == NETTYPE_WEBSOCKET_IPV4) |
1104 | { |
1105 | if(add_port != 0) |
1106 | str_format(buffer: string, buffer_size: max_length, format: "%d.%d.%d.%d:%d" , addr->ip[0], addr->ip[1], addr->ip[2], addr->ip[3], addr->port); |
1107 | else |
1108 | str_format(buffer: string, buffer_size: max_length, format: "%d.%d.%d.%d" , addr->ip[0], addr->ip[1], addr->ip[2], addr->ip[3]); |
1109 | } |
1110 | else if(addr->type == NETTYPE_IPV6) |
1111 | { |
1112 | int port = -1; |
1113 | unsigned short ip[8]; |
1114 | int i; |
1115 | if(add_port) |
1116 | { |
1117 | port = addr->port; |
1118 | } |
1119 | for(i = 0; i < 8; i++) |
1120 | { |
1121 | ip[i] = (addr->ip[i * 2] << 8) | (addr->ip[i * 2 + 1]); |
1122 | } |
1123 | net_addr_str_v6(ip, port, buffer: string, buffer_size: max_length); |
1124 | } |
1125 | else |
1126 | str_format(buffer: string, buffer_size: max_length, format: "unknown type %d" , addr->type); |
1127 | } |
1128 | |
1129 | static int (const char *hostname, char *host, int max_host, int *port) |
1130 | { |
1131 | int i; |
1132 | |
1133 | *port = 0; |
1134 | host[0] = 0; |
1135 | |
1136 | if(hostname[0] == '[') |
1137 | { |
1138 | // ipv6 mode |
1139 | for(i = 1; i < max_host && hostname[i] && hostname[i] != ']'; i++) |
1140 | host[i - 1] = hostname[i]; |
1141 | host[i - 1] = 0; |
1142 | if(hostname[i] != ']') // malformatted |
1143 | return -1; |
1144 | |
1145 | i++; |
1146 | if(hostname[i] == ':') |
1147 | *port = str_toint(str: hostname + i + 1); |
1148 | } |
1149 | else |
1150 | { |
1151 | // generic mode (ipv4, hostname etc) |
1152 | for(i = 0; i < max_host - 1 && hostname[i] && hostname[i] != ':'; i++) |
1153 | host[i] = hostname[i]; |
1154 | host[i] = 0; |
1155 | |
1156 | if(hostname[i] == ':') |
1157 | *port = str_toint(str: hostname + i + 1); |
1158 | } |
1159 | |
1160 | return 0; |
1161 | } |
1162 | |
1163 | int net_host_lookup_impl(const char *hostname, NETADDR *addr, int types) |
1164 | { |
1165 | struct addrinfo hints; |
1166 | struct addrinfo *result = NULL; |
1167 | int e; |
1168 | char host[256]; |
1169 | int port = 0; |
1170 | |
1171 | if(priv_net_extract(hostname, host, max_host: sizeof(host), port: &port)) |
1172 | return -1; |
1173 | |
1174 | dbg_msg(sys: "host_lookup" , fmt: "host='%s' port=%d %d" , host, port, types); |
1175 | |
1176 | mem_zero(block: &hints, size: sizeof(hints)); |
1177 | |
1178 | hints.ai_family = AF_UNSPEC; |
1179 | |
1180 | if(types == NETTYPE_IPV4) |
1181 | hints.ai_family = AF_INET; |
1182 | else if(types == NETTYPE_IPV6) |
1183 | hints.ai_family = AF_INET6; |
1184 | |
1185 | e = getaddrinfo(name: host, NULL, req: &hints, pai: &result); |
1186 | |
1187 | if(!result) |
1188 | return -1; |
1189 | |
1190 | if(e != 0) |
1191 | { |
1192 | freeaddrinfo(ai: result); |
1193 | return -1; |
1194 | } |
1195 | |
1196 | sockaddr_to_netaddr(src: result->ai_addr, dst: addr); |
1197 | addr->port = port; |
1198 | freeaddrinfo(ai: result); |
1199 | return 0; |
1200 | } |
1201 | |
1202 | int net_host_lookup(const char *hostname, NETADDR *addr, int types) |
1203 | { |
1204 | const char *ws_hostname = str_startswith(str: hostname, prefix: "ws://" ); |
1205 | if(ws_hostname) |
1206 | { |
1207 | if((types & NETTYPE_WEBSOCKET_IPV4) == 0) |
1208 | { |
1209 | return -1; |
1210 | } |
1211 | int result = net_host_lookup_impl(hostname: ws_hostname, addr, types: NETTYPE_IPV4); |
1212 | if(result == 0 && addr->type == NETTYPE_IPV4) |
1213 | { |
1214 | addr->type = NETTYPE_WEBSOCKET_IPV4; |
1215 | } |
1216 | return result; |
1217 | } |
1218 | return net_host_lookup_impl(hostname, addr, types: types & ~NETTYPE_WEBSOCKET_IPV4); |
1219 | } |
1220 | |
1221 | static int parse_int(int *out, const char **str) |
1222 | { |
1223 | int i = 0; |
1224 | *out = 0; |
1225 | if(!str_isnum(c: **str)) |
1226 | return -1; |
1227 | |
1228 | i = **str - '0'; |
1229 | (*str)++; |
1230 | |
1231 | while(true) |
1232 | { |
1233 | if(!str_isnum(c: **str)) |
1234 | { |
1235 | *out = i; |
1236 | return 0; |
1237 | } |
1238 | |
1239 | i = (i * 10) + (**str - '0'); |
1240 | (*str)++; |
1241 | } |
1242 | |
1243 | return 0; |
1244 | } |
1245 | |
1246 | static int parse_char(char c, const char **str) |
1247 | { |
1248 | if(**str != c) |
1249 | return -1; |
1250 | (*str)++; |
1251 | return 0; |
1252 | } |
1253 | |
1254 | static int parse_uint8(unsigned char *out, const char **str) |
1255 | { |
1256 | int i; |
1257 | if(parse_int(out: &i, str) != 0) |
1258 | return -1; |
1259 | if(i < 0 || i > 0xff) |
1260 | return -1; |
1261 | *out = i; |
1262 | return 0; |
1263 | } |
1264 | |
1265 | static int parse_uint16(unsigned short *out, const char **str) |
1266 | { |
1267 | int i; |
1268 | if(parse_int(out: &i, str) != 0) |
1269 | return -1; |
1270 | if(i < 0 || i > 0xffff) |
1271 | return -1; |
1272 | *out = i; |
1273 | return 0; |
1274 | } |
1275 | |
1276 | int net_addr_from_url(NETADDR *addr, const char *string, char *host_buf, size_t host_buf_size) |
1277 | { |
1278 | const char *str = str_startswith(str: string, prefix: "tw-0.6+udp://" ); |
1279 | if(!str) |
1280 | return 1; |
1281 | |
1282 | mem_zero(block: addr, size: sizeof(*addr)); |
1283 | |
1284 | int length = str_length(str); |
1285 | int start = 0; |
1286 | int end = length; |
1287 | for(int i = 0; i < length; i++) |
1288 | { |
1289 | if(str[i] == '@') |
1290 | { |
1291 | if(start != 0) |
1292 | { |
1293 | // Two at signs. |
1294 | return true; |
1295 | } |
1296 | start = i + 1; |
1297 | } |
1298 | else if(str[i] == '/' || str[i] == '?' || str[i] == '#') |
1299 | { |
1300 | end = i; |
1301 | break; |
1302 | } |
1303 | } |
1304 | |
1305 | char host[128]; |
1306 | str_truncate(dst: host, dst_size: sizeof(host), src: str + start, truncation_len: end - start); |
1307 | if(host_buf) |
1308 | str_copy(dst: host_buf, src: host, dst_size: host_buf_size); |
1309 | |
1310 | return net_addr_from_str(addr, string: host); |
1311 | } |
1312 | |
1313 | int net_addr_from_str(NETADDR *addr, const char *string) |
1314 | { |
1315 | const char *str = string; |
1316 | mem_zero(block: addr, size: sizeof(NETADDR)); |
1317 | |
1318 | if(str[0] == '[') |
1319 | { |
1320 | /* ipv6 */ |
1321 | struct sockaddr_in6 sa6; |
1322 | char buf[128]; |
1323 | int i; |
1324 | str++; |
1325 | for(i = 0; i < 127 && str[i] && str[i] != ']'; i++) |
1326 | buf[i] = str[i]; |
1327 | buf[i] = 0; |
1328 | str += i; |
1329 | #if defined(CONF_FAMILY_WINDOWS) |
1330 | { |
1331 | int size; |
1332 | sa6.sin6_family = AF_INET6; |
1333 | size = (int)sizeof(sa6); |
1334 | if(WSAStringToAddressA(buf, AF_INET6, NULL, (struct sockaddr *)&sa6, &size) != 0) |
1335 | return -1; |
1336 | } |
1337 | #else |
1338 | sa6.sin6_family = AF_INET6; |
1339 | |
1340 | if(inet_pton(AF_INET6, cp: buf, buf: &sa6.sin6_addr) != 1) |
1341 | return -1; |
1342 | #endif |
1343 | sockaddr_to_netaddr(src: (struct sockaddr *)&sa6, dst: addr); |
1344 | |
1345 | if(*str == ']') |
1346 | { |
1347 | str++; |
1348 | if(*str == ':') |
1349 | { |
1350 | str++; |
1351 | if(parse_uint16(out: &addr->port, str: &str)) |
1352 | return -1; |
1353 | } |
1354 | else |
1355 | { |
1356 | addr->port = 0; |
1357 | } |
1358 | } |
1359 | else |
1360 | return -1; |
1361 | |
1362 | return 0; |
1363 | } |
1364 | else |
1365 | { |
1366 | /* ipv4 */ |
1367 | if(parse_uint8(out: &addr->ip[0], str: &str)) |
1368 | return -1; |
1369 | if(parse_char(c: '.', str: &str)) |
1370 | return -1; |
1371 | if(parse_uint8(out: &addr->ip[1], str: &str)) |
1372 | return -1; |
1373 | if(parse_char(c: '.', str: &str)) |
1374 | return -1; |
1375 | if(parse_uint8(out: &addr->ip[2], str: &str)) |
1376 | return -1; |
1377 | if(parse_char(c: '.', str: &str)) |
1378 | return -1; |
1379 | if(parse_uint8(out: &addr->ip[3], str: &str)) |
1380 | return -1; |
1381 | if(*str == ':') |
1382 | { |
1383 | str++; |
1384 | if(parse_uint16(out: &addr->port, str: &str)) |
1385 | return -1; |
1386 | } |
1387 | if(*str != '\0') |
1388 | return -1; |
1389 | |
1390 | addr->type = NETTYPE_IPV4; |
1391 | } |
1392 | |
1393 | return 0; |
1394 | } |
1395 | |
1396 | static void priv_net_close_socket(int sock) |
1397 | { |
1398 | #if defined(CONF_FAMILY_WINDOWS) |
1399 | closesocket(sock); |
1400 | #else |
1401 | if(close(fd: sock) != 0) |
1402 | dbg_msg(sys: "socket" , fmt: "close failed: %d" , errno); |
1403 | #endif |
1404 | } |
1405 | |
1406 | static int priv_net_close_all_sockets(NETSOCKET sock) |
1407 | { |
1408 | /* close down ipv4 */ |
1409 | if(sock->ipv4sock >= 0) |
1410 | { |
1411 | priv_net_close_socket(sock: sock->ipv4sock); |
1412 | sock->ipv4sock = -1; |
1413 | sock->type &= ~NETTYPE_IPV4; |
1414 | } |
1415 | |
1416 | #if defined(CONF_WEBSOCKETS) |
1417 | /* close down websocket_ipv4 */ |
1418 | if(sock->web_ipv4sock >= 0) |
1419 | { |
1420 | websocket_destroy(socket: sock->web_ipv4sock); |
1421 | sock->web_ipv4sock = -1; |
1422 | sock->type &= ~NETTYPE_WEBSOCKET_IPV4; |
1423 | } |
1424 | #endif |
1425 | |
1426 | /* close down ipv6 */ |
1427 | if(sock->ipv6sock >= 0) |
1428 | { |
1429 | priv_net_close_socket(sock: sock->ipv6sock); |
1430 | sock->ipv6sock = -1; |
1431 | sock->type &= ~NETTYPE_IPV6; |
1432 | } |
1433 | |
1434 | free(ptr: sock); |
1435 | return 0; |
1436 | } |
1437 | |
1438 | #if defined(CONF_FAMILY_WINDOWS) |
1439 | std::string windows_format_system_message(unsigned long error) |
1440 | { |
1441 | WCHAR *wide_message; |
1442 | const DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_MAX_WIDTH_MASK; |
1443 | if(FormatMessageW(flags, NULL, error, 0, (LPWSTR)&wide_message, 0, NULL) == 0) |
1444 | return "unknown error" ; |
1445 | |
1446 | std::optional<std::string> message = windows_wide_to_utf8(wide_message); |
1447 | LocalFree(wide_message); |
1448 | return message.value_or("(invalid UTF-16 in error message)" ); |
1449 | } |
1450 | #endif |
1451 | |
1452 | static int priv_net_create_socket(int domain, int type, struct sockaddr *addr, int sockaddrlen) |
1453 | { |
1454 | int sock, e; |
1455 | |
1456 | /* create socket */ |
1457 | sock = socket(domain: domain, type: type, protocol: 0); |
1458 | if(sock < 0) |
1459 | { |
1460 | #if defined(CONF_FAMILY_WINDOWS) |
1461 | int error = WSAGetLastError(); |
1462 | const std::string message = windows_format_system_message(error); |
1463 | dbg_msg("net" , "failed to create socket with domain %d and type %d (%d '%s')" , domain, type, error, message.c_str()); |
1464 | #else |
1465 | dbg_msg(sys: "net" , fmt: "failed to create socket with domain %d and type %d (%d '%s')" , domain, type, errno, strerror(errno)); |
1466 | #endif |
1467 | return -1; |
1468 | } |
1469 | |
1470 | #if defined(CONF_FAMILY_UNIX) |
1471 | /* on tcp sockets set SO_REUSEADDR |
1472 | to fix port rebind on restart */ |
1473 | if(domain == AF_INET && type == SOCK_STREAM) |
1474 | { |
1475 | int option = 1; |
1476 | if(setsockopt(fd: sock, SOL_SOCKET, SO_REUSEADDR, optval: &option, optlen: sizeof(option)) != 0) |
1477 | dbg_msg(sys: "socket" , fmt: "Setting SO_REUSEADDR failed: %d" , errno); |
1478 | } |
1479 | #endif |
1480 | |
1481 | /* set to IPv6 only if that's what we are creating */ |
1482 | #if defined(IPV6_V6ONLY) /* windows sdk 6.1 and higher */ |
1483 | if(domain == AF_INET6) |
1484 | { |
1485 | int ipv6only = 1; |
1486 | if(setsockopt(fd: sock, IPPROTO_IPV6, IPV6_V6ONLY, optval: (const char *)&ipv6only, optlen: sizeof(ipv6only)) != 0) |
1487 | dbg_msg(sys: "socket" , fmt: "Setting V6ONLY failed: %d" , errno); |
1488 | } |
1489 | #endif |
1490 | |
1491 | /* bind the socket */ |
1492 | e = bind(fd: sock, addr: addr, len: sockaddrlen); |
1493 | if(e != 0) |
1494 | { |
1495 | #if defined(CONF_FAMILY_WINDOWS) |
1496 | int error = WSAGetLastError(); |
1497 | const std::string message = windows_format_system_message(error); |
1498 | dbg_msg("net" , "failed to bind socket with domain %d and type %d (%d '%s')" , domain, type, error, message.c_str()); |
1499 | #else |
1500 | dbg_msg(sys: "net" , fmt: "failed to bind socket with domain %d and type %d (%d '%s')" , domain, type, errno, strerror(errno)); |
1501 | #endif |
1502 | priv_net_close_socket(sock); |
1503 | return -1; |
1504 | } |
1505 | |
1506 | /* return the newly created socket */ |
1507 | return sock; |
1508 | } |
1509 | |
1510 | int net_socket_type(NETSOCKET sock) |
1511 | { |
1512 | return sock->type; |
1513 | } |
1514 | |
1515 | NETSOCKET net_udp_create(NETADDR bindaddr) |
1516 | { |
1517 | NETSOCKET sock = (NETSOCKET_INTERNAL *)malloc(size: sizeof(*sock)); |
1518 | *sock = invalid_socket; |
1519 | NETADDR tmpbindaddr = bindaddr; |
1520 | int broadcast = 1; |
1521 | int socket = -1; |
1522 | |
1523 | if(bindaddr.type & NETTYPE_IPV4) |
1524 | { |
1525 | struct sockaddr_in addr; |
1526 | |
1527 | /* bind, we should check for error */ |
1528 | tmpbindaddr.type = NETTYPE_IPV4; |
1529 | netaddr_to_sockaddr_in(src: &tmpbindaddr, dest: &addr); |
1530 | socket = priv_net_create_socket(AF_INET, SOCK_DGRAM, addr: (struct sockaddr *)&addr, sockaddrlen: sizeof(addr)); |
1531 | if(socket >= 0) |
1532 | { |
1533 | sock->type |= NETTYPE_IPV4; |
1534 | sock->ipv4sock = socket; |
1535 | |
1536 | /* set broadcast */ |
1537 | if(setsockopt(fd: socket, SOL_SOCKET, SO_BROADCAST, optval: (const char *)&broadcast, optlen: sizeof(broadcast)) != 0) |
1538 | { |
1539 | dbg_msg(sys: "socket" , fmt: "Setting BROADCAST on ipv4 failed: %d" , net_errno()); |
1540 | } |
1541 | |
1542 | { |
1543 | /* set DSCP/TOS */ |
1544 | int iptos = 0x10 /* IPTOS_LOWDELAY */; |
1545 | if(setsockopt(fd: socket, IPPROTO_IP, IP_TOS, optval: (char *)&iptos, optlen: sizeof(iptos)) != 0) |
1546 | { |
1547 | dbg_msg(sys: "socket" , fmt: "Setting TOS on ipv4 failed: %d" , net_errno()); |
1548 | } |
1549 | } |
1550 | } |
1551 | } |
1552 | #if defined(CONF_WEBSOCKETS) |
1553 | if(bindaddr.type & NETTYPE_WEBSOCKET_IPV4) |
1554 | { |
1555 | char addr_str[NETADDR_MAXSTRSIZE]; |
1556 | |
1557 | /* bind, we should check for error */ |
1558 | tmpbindaddr.type = NETTYPE_WEBSOCKET_IPV4; |
1559 | |
1560 | net_addr_str(addr: &tmpbindaddr, string: addr_str, max_length: sizeof(addr_str), add_port: 0); |
1561 | socket = websocket_create(addr: addr_str, port: tmpbindaddr.port); |
1562 | |
1563 | if(socket >= 0) |
1564 | { |
1565 | sock->type |= NETTYPE_WEBSOCKET_IPV4; |
1566 | sock->web_ipv4sock = socket; |
1567 | } |
1568 | } |
1569 | #endif |
1570 | |
1571 | if(bindaddr.type & NETTYPE_IPV6) |
1572 | { |
1573 | struct sockaddr_in6 addr; |
1574 | |
1575 | /* bind, we should check for error */ |
1576 | tmpbindaddr.type = NETTYPE_IPV6; |
1577 | netaddr_to_sockaddr_in6(src: &tmpbindaddr, dest: &addr); |
1578 | socket = priv_net_create_socket(AF_INET6, SOCK_DGRAM, addr: (struct sockaddr *)&addr, sockaddrlen: sizeof(addr)); |
1579 | if(socket >= 0) |
1580 | { |
1581 | sock->type |= NETTYPE_IPV6; |
1582 | sock->ipv6sock = socket; |
1583 | |
1584 | /* set broadcast */ |
1585 | if(setsockopt(fd: socket, SOL_SOCKET, SO_BROADCAST, optval: (const char *)&broadcast, optlen: sizeof(broadcast)) != 0) |
1586 | { |
1587 | dbg_msg(sys: "socket" , fmt: "Setting BROADCAST on ipv6 failed: %d" , net_errno()); |
1588 | } |
1589 | |
1590 | // TODO: setting IP_TOS on ipv6 with setsockopt is not supported on Windows, see https://github.com/ddnet/ddnet/issues/7605 |
1591 | #if !defined(CONF_FAMILY_WINDOWS) |
1592 | { |
1593 | /* set DSCP/TOS */ |
1594 | int iptos = 0x10 /* IPTOS_LOWDELAY */; |
1595 | if(setsockopt(fd: socket, IPPROTO_IP, IP_TOS, optval: (char *)&iptos, optlen: sizeof(iptos)) != 0) |
1596 | { |
1597 | dbg_msg(sys: "socket" , fmt: "Setting TOS on ipv6 failed: %d" , net_errno()); |
1598 | } |
1599 | } |
1600 | #endif |
1601 | } |
1602 | } |
1603 | |
1604 | if(socket < 0) |
1605 | { |
1606 | free(ptr: sock); |
1607 | sock = nullptr; |
1608 | } |
1609 | else |
1610 | { |
1611 | /* set non-blocking */ |
1612 | net_set_non_blocking(sock); |
1613 | |
1614 | net_buffer_init(buffer: &sock->buffer); |
1615 | } |
1616 | |
1617 | /* return */ |
1618 | return sock; |
1619 | } |
1620 | |
1621 | int net_udp_send(NETSOCKET sock, const NETADDR *addr, const void *data, int size) |
1622 | { |
1623 | int d = -1; |
1624 | |
1625 | if(addr->type & NETTYPE_IPV4) |
1626 | { |
1627 | if(sock->ipv4sock >= 0) |
1628 | { |
1629 | struct sockaddr_in sa; |
1630 | if(addr->type & NETTYPE_LINK_BROADCAST) |
1631 | { |
1632 | mem_zero(block: &sa, size: sizeof(sa)); |
1633 | sa.sin_port = htons(hostshort: addr->port); |
1634 | sa.sin_family = AF_INET; |
1635 | sa.sin_addr.s_addr = INADDR_BROADCAST; |
1636 | } |
1637 | else |
1638 | netaddr_to_sockaddr_in(src: addr, dest: &sa); |
1639 | |
1640 | d = sendto(fd: (int)sock->ipv4sock, buf: (const char *)data, n: size, flags: 0, addr: (struct sockaddr *)&sa, addr_len: sizeof(sa)); |
1641 | } |
1642 | else |
1643 | dbg_msg(sys: "net" , fmt: "can't send ipv4 traffic to this socket" ); |
1644 | } |
1645 | |
1646 | #if defined(CONF_WEBSOCKETS) |
1647 | if(addr->type & NETTYPE_WEBSOCKET_IPV4) |
1648 | { |
1649 | if(sock->web_ipv4sock >= 0) |
1650 | { |
1651 | char addr_str[NETADDR_MAXSTRSIZE]; |
1652 | str_format(buffer: addr_str, buffer_size: sizeof(addr_str), format: "%d.%d.%d.%d" , addr->ip[0], addr->ip[1], addr->ip[2], addr->ip[3]); |
1653 | d = websocket_send(socket: sock->web_ipv4sock, data: (const unsigned char *)data, size, addr_str, port: addr->port); |
1654 | } |
1655 | |
1656 | else |
1657 | dbg_msg(sys: "net" , fmt: "can't send websocket_ipv4 traffic to this socket" ); |
1658 | } |
1659 | #endif |
1660 | |
1661 | if(addr->type & NETTYPE_IPV6) |
1662 | { |
1663 | if(sock->ipv6sock >= 0) |
1664 | { |
1665 | struct sockaddr_in6 sa; |
1666 | if(addr->type & NETTYPE_LINK_BROADCAST) |
1667 | { |
1668 | mem_zero(block: &sa, size: sizeof(sa)); |
1669 | sa.sin6_port = htons(hostshort: addr->port); |
1670 | sa.sin6_family = AF_INET6; |
1671 | sa.sin6_addr.s6_addr[0] = 0xff; /* multicast */ |
1672 | sa.sin6_addr.s6_addr[1] = 0x02; /* link local scope */ |
1673 | sa.sin6_addr.s6_addr[15] = 1; /* all nodes */ |
1674 | } |
1675 | else |
1676 | netaddr_to_sockaddr_in6(src: addr, dest: &sa); |
1677 | |
1678 | d = sendto(fd: (int)sock->ipv6sock, buf: (const char *)data, n: size, flags: 0, addr: (struct sockaddr *)&sa, addr_len: sizeof(sa)); |
1679 | } |
1680 | else |
1681 | dbg_msg(sys: "net" , fmt: "can't send ipv6 traffic to this socket" ); |
1682 | } |
1683 | /* |
1684 | else |
1685 | dbg_msg("net", "can't send to network of type %d", addr->type); |
1686 | */ |
1687 | |
1688 | /*if(d < 0) |
1689 | { |
1690 | char addrstr[256]; |
1691 | net_addr_str(addr, addrstr, sizeof(addrstr)); |
1692 | |
1693 | dbg_msg("net", "sendto error (%d '%s')", errno, strerror(errno)); |
1694 | dbg_msg("net", "\tsock = %d %x", sock, sock); |
1695 | dbg_msg("net", "\tsize = %d %x", size, size); |
1696 | dbg_msg("net", "\taddr = %s", addrstr); |
1697 | |
1698 | }*/ |
1699 | network_stats.sent_bytes += size; |
1700 | network_stats.sent_packets++; |
1701 | return d; |
1702 | } |
1703 | |
1704 | void net_buffer_init(NETSOCKET_BUFFER *buffer) |
1705 | { |
1706 | #if defined(CONF_PLATFORM_LINUX) |
1707 | int i; |
1708 | buffer->pos = 0; |
1709 | buffer->size = 0; |
1710 | mem_zero(block: buffer->msgs, size: sizeof(buffer->msgs)); |
1711 | mem_zero(block: buffer->iovecs, size: sizeof(buffer->iovecs)); |
1712 | mem_zero(block: buffer->sockaddrs, size: sizeof(buffer->sockaddrs)); |
1713 | for(i = 0; i < VLEN; ++i) |
1714 | { |
1715 | buffer->iovecs[i].iov_base = buffer->bufs[i]; |
1716 | buffer->iovecs[i].iov_len = PACKETSIZE; |
1717 | buffer->msgs[i].msg_hdr.msg_iov = &(buffer->iovecs[i]); |
1718 | buffer->msgs[i].msg_hdr.msg_iovlen = 1; |
1719 | buffer->msgs[i].msg_hdr.msg_name = &(buffer->sockaddrs[i]); |
1720 | buffer->msgs[i].msg_hdr.msg_namelen = sizeof(buffer->sockaddrs[i]); |
1721 | } |
1722 | #endif |
1723 | } |
1724 | |
1725 | void net_buffer_reinit(NETSOCKET_BUFFER *buffer) |
1726 | { |
1727 | #if defined(CONF_PLATFORM_LINUX) |
1728 | for(int i = 0; i < VLEN; i++) |
1729 | { |
1730 | buffer->msgs[i].msg_hdr.msg_namelen = sizeof(buffer->sockaddrs[i]); |
1731 | } |
1732 | #endif |
1733 | } |
1734 | |
1735 | void net_buffer_simple(NETSOCKET_BUFFER *buffer, char **buf, int *size) |
1736 | { |
1737 | #if defined(CONF_PLATFORM_LINUX) |
1738 | *buf = buffer->bufs[0]; |
1739 | *size = sizeof(buffer->bufs[0]); |
1740 | #else |
1741 | *buf = buffer->buf; |
1742 | *size = sizeof(buffer->buf); |
1743 | #endif |
1744 | } |
1745 | |
1746 | int net_udp_recv(NETSOCKET sock, NETADDR *addr, unsigned char **data) |
1747 | { |
1748 | char sockaddrbuf[128]; |
1749 | int bytes = 0; |
1750 | |
1751 | #if defined(CONF_PLATFORM_LINUX) |
1752 | if(sock->ipv4sock >= 0) |
1753 | { |
1754 | if(sock->buffer.pos >= sock->buffer.size) |
1755 | { |
1756 | net_buffer_reinit(buffer: &sock->buffer); |
1757 | sock->buffer.size = recvmmsg(fd: sock->ipv4sock, vmessages: sock->buffer.msgs, VLEN, flags: 0, NULL); |
1758 | sock->buffer.pos = 0; |
1759 | } |
1760 | } |
1761 | |
1762 | if(sock->ipv6sock >= 0) |
1763 | { |
1764 | if(sock->buffer.pos >= sock->buffer.size) |
1765 | { |
1766 | net_buffer_reinit(buffer: &sock->buffer); |
1767 | sock->buffer.size = recvmmsg(fd: sock->ipv6sock, vmessages: sock->buffer.msgs, VLEN, flags: 0, NULL); |
1768 | sock->buffer.pos = 0; |
1769 | } |
1770 | } |
1771 | |
1772 | if(sock->buffer.pos < sock->buffer.size) |
1773 | { |
1774 | sockaddr_to_netaddr(src: (struct sockaddr *)&(sock->buffer.sockaddrs[sock->buffer.pos]), dst: addr); |
1775 | bytes = sock->buffer.msgs[sock->buffer.pos].msg_len; |
1776 | *data = (unsigned char *)sock->buffer.bufs[sock->buffer.pos]; |
1777 | sock->buffer.pos++; |
1778 | network_stats.recv_bytes += bytes; |
1779 | network_stats.recv_packets++; |
1780 | return bytes; |
1781 | } |
1782 | #else |
1783 | if(sock->ipv4sock >= 0) |
1784 | { |
1785 | socklen_t fromlen = sizeof(struct sockaddr_in); |
1786 | bytes = recvfrom(sock->ipv4sock, sock->buffer.buf, sizeof(sock->buffer.buf), 0, (struct sockaddr *)&sockaddrbuf, &fromlen); |
1787 | *data = (unsigned char *)sock->buffer.buf; |
1788 | } |
1789 | |
1790 | if(bytes <= 0 && sock->ipv6sock >= 0) |
1791 | { |
1792 | socklen_t fromlen = sizeof(struct sockaddr_in6); |
1793 | bytes = recvfrom(sock->ipv6sock, sock->buffer.buf, sizeof(sock->buffer.buf), 0, (struct sockaddr *)&sockaddrbuf, &fromlen); |
1794 | *data = (unsigned char *)sock->buffer.buf; |
1795 | } |
1796 | #endif |
1797 | |
1798 | #if defined(CONF_WEBSOCKETS) |
1799 | if(bytes <= 0 && sock->web_ipv4sock >= 0) |
1800 | { |
1801 | char *buf; |
1802 | int size; |
1803 | net_buffer_simple(buffer: &sock->buffer, buf: &buf, size: &size); |
1804 | socklen_t fromlen = sizeof(struct sockaddr); |
1805 | struct sockaddr_in *sockaddrbuf_in = (struct sockaddr_in *)&sockaddrbuf; |
1806 | bytes = websocket_recv(socket: sock->web_ipv4sock, data: (unsigned char *)buf, maxsize: size, sockaddrbuf: sockaddrbuf_in, fromLen: fromlen); |
1807 | *data = (unsigned char *)buf; |
1808 | sockaddrbuf_in->sin_family = AF_WEBSOCKET_INET; |
1809 | } |
1810 | #endif |
1811 | |
1812 | if(bytes > 0) |
1813 | { |
1814 | sockaddr_to_netaddr(src: (struct sockaddr *)&sockaddrbuf, dst: addr); |
1815 | network_stats.recv_bytes += bytes; |
1816 | network_stats.recv_packets++; |
1817 | return bytes; |
1818 | } |
1819 | else if(bytes == 0) |
1820 | return 0; |
1821 | return -1; /* error */ |
1822 | } |
1823 | |
1824 | int net_udp_close(NETSOCKET sock) |
1825 | { |
1826 | return priv_net_close_all_sockets(sock); |
1827 | } |
1828 | |
1829 | NETSOCKET net_tcp_create(NETADDR bindaddr) |
1830 | { |
1831 | NETSOCKET sock = (NETSOCKET_INTERNAL *)malloc(size: sizeof(*sock)); |
1832 | *sock = invalid_socket; |
1833 | NETADDR tmpbindaddr = bindaddr; |
1834 | int socket4 = -1; |
1835 | |
1836 | if(bindaddr.type & NETTYPE_IPV4) |
1837 | { |
1838 | struct sockaddr_in addr; |
1839 | |
1840 | /* bind, we should check for error */ |
1841 | tmpbindaddr.type = NETTYPE_IPV4; |
1842 | netaddr_to_sockaddr_in(src: &tmpbindaddr, dest: &addr); |
1843 | socket4 = priv_net_create_socket(AF_INET, SOCK_STREAM, addr: (struct sockaddr *)&addr, sockaddrlen: sizeof(addr)); |
1844 | if(socket4 >= 0) |
1845 | { |
1846 | sock->type |= NETTYPE_IPV4; |
1847 | sock->ipv4sock = socket4; |
1848 | } |
1849 | } |
1850 | |
1851 | int socket6 = -1; |
1852 | if(bindaddr.type & NETTYPE_IPV6) |
1853 | { |
1854 | struct sockaddr_in6 addr; |
1855 | |
1856 | /* bind, we should check for error */ |
1857 | tmpbindaddr.type = NETTYPE_IPV6; |
1858 | netaddr_to_sockaddr_in6(src: &tmpbindaddr, dest: &addr); |
1859 | socket6 = priv_net_create_socket(AF_INET6, SOCK_STREAM, addr: (struct sockaddr *)&addr, sockaddrlen: sizeof(addr)); |
1860 | if(socket6 >= 0) |
1861 | { |
1862 | sock->type |= NETTYPE_IPV6; |
1863 | sock->ipv6sock = socket6; |
1864 | } |
1865 | } |
1866 | |
1867 | if(socket4 < 0 && socket6 < 0) |
1868 | { |
1869 | free(ptr: sock); |
1870 | sock = nullptr; |
1871 | } |
1872 | |
1873 | /* return */ |
1874 | return sock; |
1875 | } |
1876 | |
1877 | static int net_set_blocking_impl(NETSOCKET sock, bool blocking) |
1878 | { |
1879 | unsigned long mode = blocking ? 0 : 1; |
1880 | const char *mode_str = blocking ? "blocking" : "non-blocking" ; |
1881 | int sockets[] = {sock->ipv4sock, sock->ipv6sock}; |
1882 | const char *socket_str[] = {"ipv4" , "ipv6" }; |
1883 | |
1884 | for(size_t i = 0; i < std::size(sockets); ++i) |
1885 | { |
1886 | if(sockets[i] >= 0) |
1887 | { |
1888 | #if defined(CONF_FAMILY_WINDOWS) |
1889 | int result = ioctlsocket(sockets[i], FIONBIO, (unsigned long *)&mode); |
1890 | if(result != NO_ERROR) |
1891 | dbg_msg("socket" , "setting %s %s failed: %d" , socket_str[i], mode_str, result); |
1892 | #else |
1893 | if(ioctl(fd: sockets[i], FIONBIO, (unsigned long *)&mode) == -1) |
1894 | dbg_msg(sys: "socket" , fmt: "setting %s %s failed: %d" , socket_str[i], mode_str, errno); |
1895 | #endif |
1896 | } |
1897 | } |
1898 | |
1899 | return 0; |
1900 | } |
1901 | |
1902 | int net_set_non_blocking(NETSOCKET sock) |
1903 | { |
1904 | return net_set_blocking_impl(sock, blocking: false); |
1905 | } |
1906 | |
1907 | int net_set_blocking(NETSOCKET sock) |
1908 | { |
1909 | return net_set_blocking_impl(sock, blocking: true); |
1910 | } |
1911 | |
1912 | int net_tcp_listen(NETSOCKET sock, int backlog) |
1913 | { |
1914 | int err = -1; |
1915 | if(sock->ipv4sock >= 0) |
1916 | err = listen(fd: sock->ipv4sock, n: backlog); |
1917 | if(sock->ipv6sock >= 0) |
1918 | err = listen(fd: sock->ipv6sock, n: backlog); |
1919 | return err; |
1920 | } |
1921 | |
1922 | int net_tcp_accept(NETSOCKET sock, NETSOCKET *new_sock, NETADDR *a) |
1923 | { |
1924 | int s; |
1925 | socklen_t sockaddr_len; |
1926 | |
1927 | *new_sock = nullptr; |
1928 | |
1929 | if(sock->ipv4sock >= 0) |
1930 | { |
1931 | struct sockaddr_in addr; |
1932 | sockaddr_len = sizeof(addr); |
1933 | |
1934 | s = accept(fd: sock->ipv4sock, addr: (struct sockaddr *)&addr, addr_len: &sockaddr_len); |
1935 | |
1936 | if(s != -1) |
1937 | { |
1938 | sockaddr_to_netaddr(src: (const struct sockaddr *)&addr, dst: a); |
1939 | |
1940 | *new_sock = (NETSOCKET_INTERNAL *)malloc(size: sizeof(**new_sock)); |
1941 | **new_sock = invalid_socket; |
1942 | (*new_sock)->type = NETTYPE_IPV4; |
1943 | (*new_sock)->ipv4sock = s; |
1944 | return s; |
1945 | } |
1946 | } |
1947 | |
1948 | if(sock->ipv6sock >= 0) |
1949 | { |
1950 | struct sockaddr_in6 addr; |
1951 | sockaddr_len = sizeof(addr); |
1952 | |
1953 | s = accept(fd: sock->ipv6sock, addr: (struct sockaddr *)&addr, addr_len: &sockaddr_len); |
1954 | |
1955 | if(s != -1) |
1956 | { |
1957 | *new_sock = (NETSOCKET_INTERNAL *)malloc(size: sizeof(**new_sock)); |
1958 | **new_sock = invalid_socket; |
1959 | sockaddr_to_netaddr(src: (const struct sockaddr *)&addr, dst: a); |
1960 | (*new_sock)->type = NETTYPE_IPV6; |
1961 | (*new_sock)->ipv6sock = s; |
1962 | return s; |
1963 | } |
1964 | } |
1965 | |
1966 | return -1; |
1967 | } |
1968 | |
1969 | int net_tcp_connect(NETSOCKET sock, const NETADDR *a) |
1970 | { |
1971 | if(a->type & NETTYPE_IPV4) |
1972 | { |
1973 | struct sockaddr_in addr; |
1974 | netaddr_to_sockaddr_in(src: a, dest: &addr); |
1975 | if(sock->ipv4sock < 0) |
1976 | return -2; |
1977 | return connect(fd: sock->ipv4sock, addr: (struct sockaddr *)&addr, len: sizeof(addr)); |
1978 | } |
1979 | |
1980 | if(a->type & NETTYPE_IPV6) |
1981 | { |
1982 | struct sockaddr_in6 addr; |
1983 | netaddr_to_sockaddr_in6(src: a, dest: &addr); |
1984 | if(sock->ipv6sock < 0) |
1985 | return -2; |
1986 | return connect(fd: sock->ipv6sock, addr: (struct sockaddr *)&addr, len: sizeof(addr)); |
1987 | } |
1988 | |
1989 | return -1; |
1990 | } |
1991 | |
1992 | int net_tcp_connect_non_blocking(NETSOCKET sock, NETADDR bindaddr) |
1993 | { |
1994 | int res = 0; |
1995 | |
1996 | net_set_non_blocking(sock); |
1997 | res = net_tcp_connect(sock, a: &bindaddr); |
1998 | net_set_blocking(sock); |
1999 | |
2000 | return res; |
2001 | } |
2002 | |
2003 | int net_tcp_send(NETSOCKET sock, const void *data, int size) |
2004 | { |
2005 | int bytes = -1; |
2006 | |
2007 | if(sock->ipv4sock >= 0) |
2008 | bytes = send(fd: (int)sock->ipv4sock, buf: (const char *)data, n: size, flags: 0); |
2009 | if(sock->ipv6sock >= 0) |
2010 | bytes = send(fd: (int)sock->ipv6sock, buf: (const char *)data, n: size, flags: 0); |
2011 | |
2012 | return bytes; |
2013 | } |
2014 | |
2015 | int net_tcp_recv(NETSOCKET sock, void *data, int maxsize) |
2016 | { |
2017 | int bytes = -1; |
2018 | |
2019 | if(sock->ipv4sock >= 0) |
2020 | bytes = recv(fd: (int)sock->ipv4sock, buf: (char *)data, n: maxsize, flags: 0); |
2021 | if(sock->ipv6sock >= 0) |
2022 | bytes = recv(fd: (int)sock->ipv6sock, buf: (char *)data, n: maxsize, flags: 0); |
2023 | |
2024 | return bytes; |
2025 | } |
2026 | |
2027 | int net_tcp_close(NETSOCKET sock) |
2028 | { |
2029 | return priv_net_close_all_sockets(sock); |
2030 | } |
2031 | |
2032 | int net_errno() |
2033 | { |
2034 | #if defined(CONF_FAMILY_WINDOWS) |
2035 | return WSAGetLastError(); |
2036 | #else |
2037 | return errno; |
2038 | #endif |
2039 | } |
2040 | |
2041 | int net_would_block() |
2042 | { |
2043 | #if defined(CONF_FAMILY_WINDOWS) |
2044 | return net_errno() == WSAEWOULDBLOCK; |
2045 | #else |
2046 | return net_errno() == EWOULDBLOCK; |
2047 | #endif |
2048 | } |
2049 | |
2050 | void net_init() |
2051 | { |
2052 | #if defined(CONF_FAMILY_WINDOWS) |
2053 | WSADATA wsa_data; |
2054 | dbg_assert(WSAStartup(MAKEWORD(1, 1), &wsa_data) == 0, "network initialization failed." ); |
2055 | #endif |
2056 | } |
2057 | |
2058 | #if defined(CONF_FAMILY_UNIX) |
2059 | UNIXSOCKET net_unix_create_unnamed() |
2060 | { |
2061 | return socket(AF_UNIX, SOCK_DGRAM, protocol: 0); |
2062 | } |
2063 | |
2064 | int net_unix_send(UNIXSOCKET sock, UNIXSOCKETADDR *addr, void *data, int size) |
2065 | { |
2066 | return sendto(fd: sock, buf: data, n: size, flags: 0, addr: (struct sockaddr *)addr, addr_len: sizeof(struct sockaddr_un)); |
2067 | } |
2068 | |
2069 | void net_unix_set_addr(UNIXSOCKETADDR *addr, const char *path) |
2070 | { |
2071 | mem_zero(block: addr, size: sizeof(*addr)); |
2072 | addr->sun_family = AF_UNIX; |
2073 | str_copy(dst&: addr->sun_path, src: path); |
2074 | } |
2075 | |
2076 | void net_unix_close(UNIXSOCKET sock) |
2077 | { |
2078 | close(fd: sock); |
2079 | } |
2080 | #endif |
2081 | |
2082 | #if defined(CONF_FAMILY_WINDOWS) |
2083 | static inline time_t filetime_to_unixtime(LPFILETIME filetime) |
2084 | { |
2085 | time_t t; |
2086 | ULARGE_INTEGER li; |
2087 | li.LowPart = filetime->dwLowDateTime; |
2088 | li.HighPart = filetime->dwHighDateTime; |
2089 | |
2090 | li.QuadPart /= 10000000; // 100ns to 1s |
2091 | li.QuadPart -= 11644473600LL; // Windows epoch is in the past |
2092 | |
2093 | t = li.QuadPart; |
2094 | return t == (time_t)li.QuadPart ? t : (time_t)-1; |
2095 | } |
2096 | #endif |
2097 | |
2098 | void fs_listdir(const char *dir, FS_LISTDIR_CALLBACK cb, int type, void *user) |
2099 | { |
2100 | #if defined(CONF_FAMILY_WINDOWS) |
2101 | char buffer[IO_MAX_PATH_LENGTH]; |
2102 | str_format(buffer, sizeof(buffer), "%s/*" , dir); |
2103 | const std::wstring wide_buffer = windows_utf8_to_wide(buffer); |
2104 | |
2105 | WIN32_FIND_DATAW finddata; |
2106 | HANDLE handle = FindFirstFileW(wide_buffer.c_str(), &finddata); |
2107 | if(handle == INVALID_HANDLE_VALUE) |
2108 | return; |
2109 | |
2110 | do |
2111 | { |
2112 | const std::optional<std::string> current_entry = windows_wide_to_utf8(finddata.cFileName); |
2113 | if(!current_entry.has_value()) |
2114 | { |
2115 | log_error("filesystem" , "ERROR: file/folder name containing invalid UTF-16 found in folder '%s'" , dir); |
2116 | continue; |
2117 | } |
2118 | if(cb(current_entry.value().c_str(), (finddata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0, type, user)) |
2119 | break; |
2120 | } while(FindNextFileW(handle, &finddata)); |
2121 | |
2122 | FindClose(handle); |
2123 | #else |
2124 | DIR *dir_handle = opendir(name: dir); |
2125 | if(dir_handle == nullptr) |
2126 | return; |
2127 | |
2128 | char buffer[IO_MAX_PATH_LENGTH]; |
2129 | str_format(buffer, buffer_size: sizeof(buffer), format: "%s/" , dir); |
2130 | size_t length = str_length(str: buffer); |
2131 | while(true) |
2132 | { |
2133 | struct dirent *entry = readdir(dirp: dir_handle); |
2134 | if(entry == nullptr) |
2135 | break; |
2136 | if(!str_utf8_check(str: entry->d_name)) |
2137 | { |
2138 | log_error("filesystem" , "ERROR: file/folder name containing invalid UTF-8 found in folder '%s'" , dir); |
2139 | continue; |
2140 | } |
2141 | str_copy(dst: buffer + length, src: entry->d_name, dst_size: sizeof(buffer) - length); |
2142 | if(cb(entry->d_name, fs_is_dir(path: buffer), type, user)) |
2143 | break; |
2144 | } |
2145 | |
2146 | closedir(dirp: dir_handle); |
2147 | #endif |
2148 | } |
2149 | |
2150 | void fs_listdir_fileinfo(const char *dir, FS_LISTDIR_CALLBACK_FILEINFO cb, int type, void *user) |
2151 | { |
2152 | #if defined(CONF_FAMILY_WINDOWS) |
2153 | char buffer[IO_MAX_PATH_LENGTH]; |
2154 | str_format(buffer, sizeof(buffer), "%s/*" , dir); |
2155 | const std::wstring wide_buffer = windows_utf8_to_wide(buffer); |
2156 | |
2157 | WIN32_FIND_DATAW finddata; |
2158 | HANDLE handle = FindFirstFileW(wide_buffer.c_str(), &finddata); |
2159 | if(handle == INVALID_HANDLE_VALUE) |
2160 | return; |
2161 | |
2162 | do |
2163 | { |
2164 | const std::optional<std::string> current_entry = windows_wide_to_utf8(finddata.cFileName); |
2165 | if(!current_entry.has_value()) |
2166 | { |
2167 | log_error("filesystem" , "ERROR: file/folder name containing invalid UTF-16 found in folder '%s'" , dir); |
2168 | continue; |
2169 | } |
2170 | |
2171 | CFsFileInfo info; |
2172 | info.m_pName = current_entry.value().c_str(); |
2173 | info.m_TimeCreated = filetime_to_unixtime(&finddata.ftCreationTime); |
2174 | info.m_TimeModified = filetime_to_unixtime(&finddata.ftLastWriteTime); |
2175 | |
2176 | if(cb(&info, (finddata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0, type, user)) |
2177 | break; |
2178 | } while(FindNextFileW(handle, &finddata)); |
2179 | |
2180 | FindClose(handle); |
2181 | #else |
2182 | DIR *dir_handle = opendir(name: dir); |
2183 | if(dir_handle == nullptr) |
2184 | return; |
2185 | |
2186 | char buffer[IO_MAX_PATH_LENGTH]; |
2187 | str_format(buffer, buffer_size: sizeof(buffer), format: "%s/" , dir); |
2188 | size_t length = str_length(str: buffer); |
2189 | |
2190 | while(true) |
2191 | { |
2192 | struct dirent *entry = readdir(dirp: dir_handle); |
2193 | if(entry == nullptr) |
2194 | break; |
2195 | if(!str_utf8_check(str: entry->d_name)) |
2196 | { |
2197 | log_error("filesystem" , "ERROR: file/folder name containing invalid UTF-8 found in folder '%s'" , dir); |
2198 | continue; |
2199 | } |
2200 | str_copy(dst: buffer + length, src: entry->d_name, dst_size: sizeof(buffer) - length); |
2201 | time_t created = -1, modified = -1; |
2202 | fs_file_time(name: buffer, created: &created, modified: &modified); |
2203 | |
2204 | CFsFileInfo info; |
2205 | info.m_pName = entry->d_name; |
2206 | info.m_TimeCreated = created; |
2207 | info.m_TimeModified = modified; |
2208 | |
2209 | if(cb(&info, fs_is_dir(path: buffer), type, user)) |
2210 | break; |
2211 | } |
2212 | |
2213 | closedir(dirp: dir_handle); |
2214 | #endif |
2215 | } |
2216 | |
2217 | int fs_storage_path(const char *appname, char *path, int max) |
2218 | { |
2219 | #if defined(CONF_FAMILY_WINDOWS) |
2220 | WCHAR *wide_home = _wgetenv(L"APPDATA" ); |
2221 | if(!wide_home) |
2222 | { |
2223 | path[0] = '\0'; |
2224 | return -1; |
2225 | } |
2226 | const std::optional<std::string> home = windows_wide_to_utf8(wide_home); |
2227 | if(!home.has_value()) |
2228 | { |
2229 | log_error("filesystem" , "ERROR: the APPDATA environment variable contains invalid UTF-16" ); |
2230 | path[0] = '\0'; |
2231 | return -1; |
2232 | } |
2233 | str_format(path, max, "%s/%s" , home.value().c_str(), appname); |
2234 | return 0; |
2235 | #else |
2236 | char *home = getenv(name: "HOME" ); |
2237 | if(!home) |
2238 | { |
2239 | path[0] = '\0'; |
2240 | return -1; |
2241 | } |
2242 | |
2243 | if(!str_utf8_check(str: home)) |
2244 | { |
2245 | log_error("filesystem" , "ERROR: the HOME environment variable contains invalid UTF-8" ); |
2246 | path[0] = '\0'; |
2247 | return -1; |
2248 | } |
2249 | |
2250 | #if defined(CONF_PLATFORM_HAIKU) |
2251 | str_format(path, max, "%s/config/settings/%s" , home, appname); |
2252 | #elif defined(CONF_PLATFORM_MACOS) |
2253 | str_format(path, max, "%s/Library/Application Support/%s" , home, appname); |
2254 | #else |
2255 | if(str_comp(a: appname, b: "Teeworlds" ) == 0) |
2256 | { |
2257 | // fallback for old directory for Teeworlds compatibility |
2258 | str_format(buffer: path, buffer_size: max, format: "%s/.%s" , home, appname); |
2259 | } |
2260 | else |
2261 | { |
2262 | char *data_home = getenv(name: "XDG_DATA_HOME" ); |
2263 | if(data_home) |
2264 | { |
2265 | if(!str_utf8_check(str: data_home)) |
2266 | { |
2267 | log_error("filesystem" , "ERROR: the XDG_DATA_HOME environment variable contains invalid UTF-8" ); |
2268 | path[0] = '\0'; |
2269 | return -1; |
2270 | } |
2271 | str_format(buffer: path, buffer_size: max, format: "%s/%s" , data_home, appname); |
2272 | } |
2273 | else |
2274 | str_format(buffer: path, buffer_size: max, format: "%s/.local/share/%s" , home, appname); |
2275 | } |
2276 | for(int i = str_length(str: path) - str_length(str: appname); path[i]; i++) |
2277 | path[i] = tolower(c: (unsigned char)path[i]); |
2278 | #endif |
2279 | |
2280 | return 0; |
2281 | #endif |
2282 | } |
2283 | |
2284 | int fs_makedir_rec_for(const char *path) |
2285 | { |
2286 | char buffer[IO_MAX_PATH_LENGTH]; |
2287 | str_copy(dst&: buffer, src: path); |
2288 | for(int index = 1; buffer[index] != '\0'; ++index) |
2289 | { |
2290 | // Do not try to create folder for drive letters on Windows, |
2291 | // as this is not necessary and may fail for system drives. |
2292 | if((buffer[index] == '/' || buffer[index] == '\\') && buffer[index + 1] != '\0' && buffer[index - 1] != ':') |
2293 | { |
2294 | buffer[index] = '\0'; |
2295 | if(fs_makedir(path: buffer) < 0) |
2296 | { |
2297 | return -1; |
2298 | } |
2299 | buffer[index] = '/'; |
2300 | } |
2301 | } |
2302 | return 0; |
2303 | } |
2304 | |
2305 | int fs_makedir(const char *path) |
2306 | { |
2307 | #if defined(CONF_FAMILY_WINDOWS) |
2308 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2309 | if(CreateDirectoryW(wide_path.c_str(), NULL) != 0) |
2310 | return 0; |
2311 | if(GetLastError() == ERROR_ALREADY_EXISTS) |
2312 | return 0; |
2313 | return -1; |
2314 | #else |
2315 | #ifdef CONF_PLATFORM_HAIKU |
2316 | struct stat st; |
2317 | if(stat(path, &st) == 0) |
2318 | return 0; |
2319 | #endif |
2320 | if(mkdir(path: path, mode: 0755) == 0) |
2321 | return 0; |
2322 | if(errno == EEXIST) |
2323 | return 0; |
2324 | return -1; |
2325 | #endif |
2326 | } |
2327 | |
2328 | int fs_removedir(const char *path) |
2329 | { |
2330 | #if defined(CONF_FAMILY_WINDOWS) |
2331 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2332 | if(RemoveDirectoryW(wide_path.c_str()) != 0) |
2333 | return 0; |
2334 | return -1; |
2335 | #else |
2336 | if(rmdir(path: path) == 0) |
2337 | return 0; |
2338 | return -1; |
2339 | #endif |
2340 | } |
2341 | |
2342 | int fs_is_file(const char *path) |
2343 | { |
2344 | #if defined(CONF_FAMILY_WINDOWS) |
2345 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2346 | DWORD attributes = GetFileAttributesW(wide_path.c_str()); |
2347 | return attributes != INVALID_FILE_ATTRIBUTES && !(attributes & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0; |
2348 | #else |
2349 | struct stat sb; |
2350 | if(stat(file: path, buf: &sb) == -1) |
2351 | return 0; |
2352 | return S_ISREG(sb.st_mode) ? 1 : 0; |
2353 | #endif |
2354 | } |
2355 | |
2356 | int fs_is_dir(const char *path) |
2357 | { |
2358 | #if defined(CONF_FAMILY_WINDOWS) |
2359 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2360 | DWORD attributes = GetFileAttributesW(wide_path.c_str()); |
2361 | return attributes != INVALID_FILE_ATTRIBUTES && (attributes & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0; |
2362 | #else |
2363 | struct stat sb; |
2364 | if(stat(file: path, buf: &sb) == -1) |
2365 | return 0; |
2366 | return S_ISDIR(sb.st_mode) ? 1 : 0; |
2367 | #endif |
2368 | } |
2369 | |
2370 | int fs_is_relative_path(const char *path) |
2371 | { |
2372 | #if defined(CONF_FAMILY_WINDOWS) |
2373 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2374 | return PathIsRelativeW(wide_path.c_str()) ? 1 : 0; |
2375 | #else |
2376 | return path[0] == '/' ? 0 : 1; // yes, it's that simple |
2377 | #endif |
2378 | } |
2379 | |
2380 | int fs_chdir(const char *path) |
2381 | { |
2382 | #if defined(CONF_FAMILY_WINDOWS) |
2383 | const std::wstring wide_path = windows_utf8_to_wide(path); |
2384 | return SetCurrentDirectoryW(wide_path.c_str()) != 0 ? 0 : 1; |
2385 | #else |
2386 | return chdir(path: path) ? 1 : 0; |
2387 | #endif |
2388 | } |
2389 | |
2390 | char *fs_getcwd(char *buffer, int buffer_size) |
2391 | { |
2392 | #if defined(CONF_FAMILY_WINDOWS) |
2393 | const DWORD size_needed = GetCurrentDirectoryW(0, nullptr); |
2394 | std::wstring wide_current_dir(size_needed, L'0'); |
2395 | dbg_assert(GetCurrentDirectoryW(size_needed, wide_current_dir.data()) == size_needed - 1, "GetCurrentDirectoryW failure" ); |
2396 | const std::optional<std::string> current_dir = windows_wide_to_utf8(wide_current_dir.c_str()); |
2397 | if(!current_dir.has_value()) |
2398 | { |
2399 | buffer[0] = '\0'; |
2400 | return nullptr; |
2401 | } |
2402 | str_copy(buffer, current_dir.value().c_str(), buffer_size); |
2403 | return buffer; |
2404 | #else |
2405 | char *result = getcwd(buf: buffer, size: buffer_size); |
2406 | if(result == nullptr || !str_utf8_check(str: result)) |
2407 | { |
2408 | buffer[0] = '\0'; |
2409 | return nullptr; |
2410 | } |
2411 | return result; |
2412 | #endif |
2413 | } |
2414 | |
2415 | const char *fs_filename(const char *path) |
2416 | { |
2417 | for(const char *filename = path + str_length(str: path); filename >= path; --filename) |
2418 | { |
2419 | if(filename[0] == '/' || filename[0] == '\\') |
2420 | return filename + 1; |
2421 | } |
2422 | return path; |
2423 | } |
2424 | |
2425 | void fs_split_file_extension(const char *filename, char *name, size_t name_size, char *extension, size_t extension_size) |
2426 | { |
2427 | dbg_assert(name != nullptr || extension != nullptr, "name or extension parameter required" ); |
2428 | dbg_assert(name == nullptr || name_size > 0, "name_size invalid" ); |
2429 | dbg_assert(extension == nullptr || extension_size > 0, "extension_size invalid" ); |
2430 | |
2431 | const char *last_dot = str_rchr(haystack: filename, needle: '.'); |
2432 | if(last_dot == nullptr || last_dot == filename) |
2433 | { |
2434 | if(extension != nullptr) |
2435 | extension[0] = '\0'; |
2436 | if(name != nullptr) |
2437 | str_copy(dst: name, src: filename, dst_size: name_size); |
2438 | } |
2439 | else |
2440 | { |
2441 | if(extension != nullptr) |
2442 | str_copy(dst: extension, src: last_dot + 1, dst_size: extension_size); |
2443 | if(name != nullptr) |
2444 | str_truncate(dst: name, dst_size: name_size, src: filename, truncation_len: last_dot - filename); |
2445 | } |
2446 | } |
2447 | |
2448 | int fs_parent_dir(char *path) |
2449 | { |
2450 | char *parent = 0; |
2451 | for(; *path; ++path) |
2452 | { |
2453 | if(*path == '/' || *path == '\\') |
2454 | parent = path; |
2455 | } |
2456 | |
2457 | if(parent) |
2458 | { |
2459 | *parent = 0; |
2460 | return 0; |
2461 | } |
2462 | return 1; |
2463 | } |
2464 | |
2465 | int fs_remove(const char *filename) |
2466 | { |
2467 | #if defined(CONF_FAMILY_WINDOWS) |
2468 | const std::wstring wide_filename = windows_utf8_to_wide(filename); |
2469 | return DeleteFileW(wide_filename.c_str()) == 0; |
2470 | #else |
2471 | return unlink(name: filename) != 0; |
2472 | #endif |
2473 | } |
2474 | |
2475 | int fs_rename(const char *oldname, const char *newname) |
2476 | { |
2477 | #if defined(CONF_FAMILY_WINDOWS) |
2478 | const std::wstring wide_oldname = windows_utf8_to_wide(oldname); |
2479 | const std::wstring wide_newname = windows_utf8_to_wide(newname); |
2480 | if(MoveFileExW(wide_oldname.c_str(), wide_newname.c_str(), MOVEFILE_REPLACE_EXISTING | MOVEFILE_COPY_ALLOWED) == 0) |
2481 | return 1; |
2482 | #else |
2483 | if(rename(old: oldname, new: newname) != 0) |
2484 | return 1; |
2485 | #endif |
2486 | return 0; |
2487 | } |
2488 | |
2489 | int fs_file_time(const char *name, time_t *created, time_t *modified) |
2490 | { |
2491 | #if defined(CONF_FAMILY_WINDOWS) |
2492 | WIN32_FIND_DATAW finddata; |
2493 | const std::wstring wide_name = windows_utf8_to_wide(name); |
2494 | HANDLE handle = FindFirstFileW(wide_name.c_str(), &finddata); |
2495 | if(handle == INVALID_HANDLE_VALUE) |
2496 | return 1; |
2497 | |
2498 | *created = filetime_to_unixtime(&finddata.ftCreationTime); |
2499 | *modified = filetime_to_unixtime(&finddata.ftLastWriteTime); |
2500 | FindClose(handle); |
2501 | #elif defined(CONF_FAMILY_UNIX) |
2502 | struct stat sb; |
2503 | if(stat(file: name, buf: &sb)) |
2504 | return 1; |
2505 | |
2506 | *created = sb.st_ctime; |
2507 | *modified = sb.st_mtime; |
2508 | #else |
2509 | #error not implemented |
2510 | #endif |
2511 | |
2512 | return 0; |
2513 | } |
2514 | |
2515 | void swap_endian(void *data, unsigned elem_size, unsigned num) |
2516 | { |
2517 | char *src = (char *)data; |
2518 | char *dst = src + (elem_size - 1); |
2519 | |
2520 | while(num) |
2521 | { |
2522 | unsigned n = elem_size >> 1; |
2523 | char tmp; |
2524 | while(n) |
2525 | { |
2526 | tmp = *src; |
2527 | *src = *dst; |
2528 | *dst = tmp; |
2529 | |
2530 | src++; |
2531 | dst--; |
2532 | n--; |
2533 | } |
2534 | |
2535 | src = src + (elem_size >> 1); |
2536 | dst = src + (elem_size - 1); |
2537 | num--; |
2538 | } |
2539 | } |
2540 | |
2541 | int net_socket_read_wait(NETSOCKET sock, int time) |
2542 | { |
2543 | struct timeval tv; |
2544 | fd_set readfds; |
2545 | int sockid; |
2546 | |
2547 | tv.tv_sec = time / 1000000; |
2548 | tv.tv_usec = time % 1000000; |
2549 | sockid = 0; |
2550 | |
2551 | FD_ZERO(&readfds); |
2552 | if(sock->ipv4sock >= 0) |
2553 | { |
2554 | FD_SET(sock->ipv4sock, &readfds); |
2555 | sockid = sock->ipv4sock; |
2556 | } |
2557 | if(sock->ipv6sock >= 0) |
2558 | { |
2559 | FD_SET(sock->ipv6sock, &readfds); |
2560 | if(sock->ipv6sock > sockid) |
2561 | sockid = sock->ipv6sock; |
2562 | } |
2563 | #if defined(CONF_WEBSOCKETS) |
2564 | if(sock->web_ipv4sock >= 0) |
2565 | { |
2566 | int maxfd = websocket_fd_set(socket: sock->web_ipv4sock, set: &readfds); |
2567 | if(maxfd > sockid) |
2568 | { |
2569 | sockid = maxfd; |
2570 | FD_SET(sockid, &readfds); |
2571 | } |
2572 | } |
2573 | #endif |
2574 | |
2575 | /* don't care about writefds and exceptfds */ |
2576 | if(time < 0) |
2577 | select(nfds: sockid + 1, readfds: &readfds, NULL, NULL, NULL); |
2578 | else |
2579 | select(nfds: sockid + 1, readfds: &readfds, NULL, NULL, timeout: &tv); |
2580 | |
2581 | if(sock->ipv4sock >= 0 && FD_ISSET(sock->ipv4sock, &readfds)) |
2582 | return 1; |
2583 | #if defined(CONF_WEBSOCKETS) |
2584 | if(sock->web_ipv4sock >= 0 && FD_ISSET(sockid, &readfds)) |
2585 | return 1; |
2586 | #endif |
2587 | if(sock->ipv6sock >= 0 && FD_ISSET(sock->ipv6sock, &readfds)) |
2588 | return 1; |
2589 | |
2590 | return 0; |
2591 | } |
2592 | |
2593 | int64_t time_timestamp() |
2594 | { |
2595 | return time(timer: 0); |
2596 | } |
2597 | |
2598 | static struct tm *time_localtime_threadlocal(time_t *time_data) |
2599 | { |
2600 | #if defined(CONF_FAMILY_WINDOWS) |
2601 | // The result of localtime is thread-local on Windows |
2602 | // https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/localtime-localtime32-localtime64 |
2603 | return localtime(time_data); |
2604 | #else |
2605 | // Thread-local buffer for the result of localtime_r |
2606 | thread_local struct tm time_info_buf; |
2607 | return localtime_r(timer: time_data, tp: &time_info_buf); |
2608 | #endif |
2609 | } |
2610 | |
2611 | int time_houroftheday() |
2612 | { |
2613 | time_t time_data; |
2614 | time(timer: &time_data); |
2615 | struct tm *time_info = time_localtime_threadlocal(time_data: &time_data); |
2616 | return time_info->tm_hour; |
2617 | } |
2618 | |
2619 | static bool time_iseasterday(time_t time_data, struct tm *time_info) |
2620 | { |
2621 | // compute Easter day (Sunday) using https://en.wikipedia.org/w/index.php?title=Computus&oldid=890710285#Anonymous_Gregorian_algorithm |
2622 | int Y = time_info->tm_year + 1900; |
2623 | int a = Y % 19; |
2624 | int b = Y / 100; |
2625 | int c = Y % 100; |
2626 | int d = b / 4; |
2627 | int e = b % 4; |
2628 | int f = (b + 8) / 25; |
2629 | int g = (b - f + 1) / 3; |
2630 | int h = (19 * a + b - d - g + 15) % 30; |
2631 | int i = c / 4; |
2632 | int k = c % 4; |
2633 | int L = (32 + 2 * e + 2 * i - h - k) % 7; |
2634 | int m = (a + 11 * h + 22 * L) / 451; |
2635 | int month = (h + L - 7 * m + 114) / 31; |
2636 | int day = ((h + L - 7 * m + 114) % 31) + 1; |
2637 | |
2638 | // (now-1d ≤ easter ≤ now+2d) <=> (easter-2d ≤ now ≤ easter+1d) <=> (Good Friday ≤ now ≤ Easter Monday) |
2639 | for(int day_offset = -1; day_offset <= 2; day_offset++) |
2640 | { |
2641 | time_data = time_data + day_offset * 60 * 60 * 24; |
2642 | time_info = time_localtime_threadlocal(time_data: &time_data); |
2643 | if(time_info->tm_mon == month - 1 && time_info->tm_mday == day) |
2644 | return true; |
2645 | } |
2646 | return false; |
2647 | } |
2648 | |
2649 | ETimeSeason time_season() |
2650 | { |
2651 | time_t time_data; |
2652 | time(timer: &time_data); |
2653 | struct tm *time_info = time_localtime_threadlocal(time_data: &time_data); |
2654 | |
2655 | if((time_info->tm_mon == 11 && time_info->tm_mday == 31) || (time_info->tm_mon == 0 && time_info->tm_mday == 1)) |
2656 | { |
2657 | return SEASON_NEWYEAR; |
2658 | } |
2659 | else if(time_info->tm_mon == 11 && time_info->tm_mday >= 24 && time_info->tm_mday <= 26) |
2660 | { |
2661 | return SEASON_XMAS; |
2662 | } |
2663 | else if((time_info->tm_mon == 9 && time_info->tm_mday == 31) || (time_info->tm_mon == 10 && time_info->tm_mday == 1)) |
2664 | { |
2665 | return SEASON_HALLOWEEN; |
2666 | } |
2667 | else if(time_iseasterday(time_data, time_info)) |
2668 | { |
2669 | return SEASON_EASTER; |
2670 | } |
2671 | |
2672 | switch(time_info->tm_mon) |
2673 | { |
2674 | case 11: |
2675 | case 0: |
2676 | case 1: |
2677 | return SEASON_WINTER; |
2678 | case 2: |
2679 | case 3: |
2680 | case 4: |
2681 | return SEASON_SPRING; |
2682 | case 5: |
2683 | case 6: |
2684 | case 7: |
2685 | return SEASON_SUMMER; |
2686 | case 8: |
2687 | case 9: |
2688 | case 10: |
2689 | return SEASON_AUTUMN; |
2690 | default: |
2691 | dbg_assert(false, "Invalid month" ); |
2692 | dbg_break(); |
2693 | } |
2694 | } |
2695 | |
2696 | void str_append(char *dst, const char *src, int dst_size) |
2697 | { |
2698 | int s = str_length(str: dst); |
2699 | int i = 0; |
2700 | while(s < dst_size) |
2701 | { |
2702 | dst[s] = src[i]; |
2703 | if(!src[i]) /* check for null termination */ |
2704 | break; |
2705 | s++; |
2706 | i++; |
2707 | } |
2708 | |
2709 | dst[dst_size - 1] = 0; /* assure null termination */ |
2710 | str_utf8_fix_truncation(str: dst); |
2711 | } |
2712 | |
2713 | int str_copy(char *dst, const char *src, int dst_size) |
2714 | { |
2715 | dst[0] = '\0'; |
2716 | strncat(dest: dst, src: src, n: dst_size - 1); |
2717 | return str_utf8_fix_truncation(str: dst); |
2718 | } |
2719 | |
2720 | void str_utf8_truncate(char *dst, int dst_size, const char *src, int truncation_len) |
2721 | { |
2722 | int size = -1; |
2723 | const char *cursor = src; |
2724 | int pos = 0; |
2725 | while(pos <= truncation_len && cursor - src < dst_size && size != cursor - src) |
2726 | { |
2727 | size = cursor - src; |
2728 | if(str_utf8_decode(ptr: &cursor) == 0) |
2729 | { |
2730 | break; |
2731 | } |
2732 | pos++; |
2733 | } |
2734 | str_copy(dst, src, dst_size: size + 1); |
2735 | } |
2736 | |
2737 | void str_truncate(char *dst, int dst_size, const char *src, int truncation_len) |
2738 | { |
2739 | int size = dst_size; |
2740 | if(truncation_len < size) |
2741 | { |
2742 | size = truncation_len + 1; |
2743 | } |
2744 | str_copy(dst, src, dst_size: size); |
2745 | } |
2746 | |
2747 | int str_length(const char *str) |
2748 | { |
2749 | return (int)strlen(s: str); |
2750 | } |
2751 | |
2752 | int str_format_v(char *buffer, int buffer_size, const char *format, va_list args) |
2753 | { |
2754 | #if defined(CONF_FAMILY_WINDOWS) |
2755 | _vsprintf_p(buffer, buffer_size, format, args); |
2756 | buffer[buffer_size - 1] = 0; /* assure null termination */ |
2757 | #else |
2758 | vsnprintf(s: buffer, maxlen: buffer_size, format: format, arg: args); |
2759 | /* null termination is assured by definition of vsnprintf */ |
2760 | #endif |
2761 | return str_utf8_fix_truncation(str: buffer); |
2762 | } |
2763 | |
2764 | int str_format_int(char *buffer, size_t buffer_size, int value) |
2765 | { |
2766 | buffer[0] = '\0'; // Fix false positive clang-analyzer-core.UndefinedBinaryOperatorResult when using result |
2767 | auto result = std::to_chars(first: buffer, last: buffer + buffer_size - 1, value: value); |
2768 | result.ptr[0] = '\0'; |
2769 | return result.ptr - buffer; |
2770 | } |
2771 | |
2772 | #undef str_format |
2773 | int str_format(char *buffer, int buffer_size, const char *format, ...) |
2774 | { |
2775 | va_list args; |
2776 | va_start(args, format); |
2777 | int length = str_format_v(buffer, buffer_size, format, args); |
2778 | va_end(args); |
2779 | return length; |
2780 | } |
2781 | #if !defined(CONF_DEBUG) |
2782 | #define str_format str_format_opt |
2783 | #endif |
2784 | |
2785 | const char *str_trim_words(const char *str, int words) |
2786 | { |
2787 | while(*str && str_isspace(c: *str)) |
2788 | str++; |
2789 | while(words && *str) |
2790 | { |
2791 | if(str_isspace(c: *str) && !str_isspace(c: *(str + 1))) |
2792 | words--; |
2793 | str++; |
2794 | } |
2795 | return str; |
2796 | } |
2797 | |
2798 | bool str_has_cc(const char *str) |
2799 | { |
2800 | unsigned char *s = (unsigned char *)str; |
2801 | while(*s) |
2802 | { |
2803 | if(*s < 32) |
2804 | { |
2805 | return true; |
2806 | } |
2807 | s++; |
2808 | } |
2809 | return false; |
2810 | } |
2811 | |
2812 | /* makes sure that the string only contains the characters between 32 and 255 */ |
2813 | void str_sanitize_cc(char *str_in) |
2814 | { |
2815 | unsigned char *str = (unsigned char *)str_in; |
2816 | while(*str) |
2817 | { |
2818 | if(*str < 32) |
2819 | *str = ' '; |
2820 | str++; |
2821 | } |
2822 | } |
2823 | |
2824 | /* makes sure that the string only contains the characters between 32 and 255 + \r\n\t */ |
2825 | void str_sanitize(char *str_in) |
2826 | { |
2827 | unsigned char *str = (unsigned char *)str_in; |
2828 | while(*str) |
2829 | { |
2830 | if(*str < 32 && !(*str == '\r') && !(*str == '\n') && !(*str == '\t')) |
2831 | *str = ' '; |
2832 | str++; |
2833 | } |
2834 | } |
2835 | |
2836 | void str_sanitize_filename(char *str_in) |
2837 | { |
2838 | unsigned char *str = (unsigned char *)str_in; |
2839 | while(*str) |
2840 | { |
2841 | if(*str < 32 || *str == '\\' || *str == '/' || *str == '|' || *str == ':' || *str == '*' || *str == '?' || *str == '<' || *str == '>' || *str == '"') |
2842 | *str = ' '; |
2843 | str++; |
2844 | } |
2845 | } |
2846 | |
2847 | /* removes leading and trailing spaces and limits the use of multiple spaces */ |
2848 | void str_clean_whitespaces(char *str_in) |
2849 | { |
2850 | char *read = str_in; |
2851 | char *write = str_in; |
2852 | |
2853 | /* skip initial whitespace */ |
2854 | while(*read == ' ') |
2855 | read++; |
2856 | |
2857 | /* end of read string is detected in the loop */ |
2858 | while(true) |
2859 | { |
2860 | /* skip whitespace */ |
2861 | int found_whitespace = 0; |
2862 | for(; *read == ' '; read++) |
2863 | found_whitespace = 1; |
2864 | /* if not at the end of the string, put a found whitespace here */ |
2865 | if(*read) |
2866 | { |
2867 | if(found_whitespace) |
2868 | *write++ = ' '; |
2869 | *write++ = *read++; |
2870 | } |
2871 | else |
2872 | { |
2873 | *write = 0; |
2874 | break; |
2875 | } |
2876 | } |
2877 | } |
2878 | |
2879 | char *str_skip_to_whitespace(char *str) |
2880 | { |
2881 | while(*str && !str_isspace(c: *str)) |
2882 | str++; |
2883 | return str; |
2884 | } |
2885 | |
2886 | const char *str_skip_to_whitespace_const(const char *str) |
2887 | { |
2888 | while(*str && !str_isspace(c: *str)) |
2889 | str++; |
2890 | return str; |
2891 | } |
2892 | |
2893 | char *str_skip_whitespaces(char *str) |
2894 | { |
2895 | while(*str && str_isspace(c: *str)) |
2896 | str++; |
2897 | return str; |
2898 | } |
2899 | |
2900 | const char *str_skip_whitespaces_const(const char *str) |
2901 | { |
2902 | while(*str && str_isspace(c: *str)) |
2903 | str++; |
2904 | return str; |
2905 | } |
2906 | |
2907 | /* case */ |
2908 | int str_comp_nocase(const char *a, const char *b) |
2909 | { |
2910 | #if defined(CONF_FAMILY_WINDOWS) |
2911 | return _stricmp(a, b); |
2912 | #else |
2913 | return strcasecmp(s1: a, s2: b); |
2914 | #endif |
2915 | } |
2916 | |
2917 | int str_comp_nocase_num(const char *a, const char *b, int num) |
2918 | { |
2919 | #if defined(CONF_FAMILY_WINDOWS) |
2920 | return _strnicmp(a, b, num); |
2921 | #else |
2922 | return strncasecmp(s1: a, s2: b, n: num); |
2923 | #endif |
2924 | } |
2925 | |
2926 | int str_comp(const char *a, const char *b) |
2927 | { |
2928 | return strcmp(s1: a, s2: b); |
2929 | } |
2930 | |
2931 | int str_comp_num(const char *a, const char *b, int num) |
2932 | { |
2933 | return strncmp(s1: a, s2: b, n: num); |
2934 | } |
2935 | |
2936 | int str_comp_filenames(const char *a, const char *b) |
2937 | { |
2938 | int result; |
2939 | |
2940 | for(; *a && *b; ++a, ++b) |
2941 | { |
2942 | if(str_isnum(c: *a) && str_isnum(c: *b)) |
2943 | { |
2944 | result = 0; |
2945 | do |
2946 | { |
2947 | if(!result) |
2948 | result = *a - *b; |
2949 | ++a; |
2950 | ++b; |
2951 | } while(str_isnum(c: *a) && str_isnum(c: *b)); |
2952 | |
2953 | if(str_isnum(c: *a)) |
2954 | return 1; |
2955 | else if(str_isnum(c: *b)) |
2956 | return -1; |
2957 | else if(result || *a == '\0' || *b == '\0') |
2958 | return result; |
2959 | } |
2960 | |
2961 | result = tolower(c: *a) - tolower(c: *b); |
2962 | if(result) |
2963 | return result; |
2964 | } |
2965 | return *a - *b; |
2966 | } |
2967 | |
2968 | const char *str_startswith_nocase(const char *str, const char *prefix) |
2969 | { |
2970 | int prefixl = str_length(str: prefix); |
2971 | if(str_comp_nocase_num(a: str, b: prefix, num: prefixl) == 0) |
2972 | { |
2973 | return str + prefixl; |
2974 | } |
2975 | else |
2976 | { |
2977 | return 0; |
2978 | } |
2979 | } |
2980 | |
2981 | const char *str_startswith(const char *str, const char *prefix) |
2982 | { |
2983 | int prefixl = str_length(str: prefix); |
2984 | if(str_comp_num(a: str, b: prefix, num: prefixl) == 0) |
2985 | { |
2986 | return str + prefixl; |
2987 | } |
2988 | else |
2989 | { |
2990 | return 0; |
2991 | } |
2992 | } |
2993 | |
2994 | const char *str_endswith_nocase(const char *str, const char *suffix) |
2995 | { |
2996 | int strl = str_length(str); |
2997 | int suffixl = str_length(str: suffix); |
2998 | const char *strsuffix; |
2999 | if(strl < suffixl) |
3000 | { |
3001 | return 0; |
3002 | } |
3003 | strsuffix = str + strl - suffixl; |
3004 | if(str_comp_nocase(a: strsuffix, b: suffix) == 0) |
3005 | { |
3006 | return strsuffix; |
3007 | } |
3008 | else |
3009 | { |
3010 | return 0; |
3011 | } |
3012 | } |
3013 | |
3014 | const char *str_endswith(const char *str, const char *suffix) |
3015 | { |
3016 | int strl = str_length(str); |
3017 | int suffixl = str_length(str: suffix); |
3018 | const char *strsuffix; |
3019 | if(strl < suffixl) |
3020 | { |
3021 | return 0; |
3022 | } |
3023 | strsuffix = str + strl - suffixl; |
3024 | if(str_comp(a: strsuffix, b: suffix) == 0) |
3025 | { |
3026 | return strsuffix; |
3027 | } |
3028 | else |
3029 | { |
3030 | return 0; |
3031 | } |
3032 | } |
3033 | |
3034 | static int min3(int a, int b, int c) |
3035 | { |
3036 | int min = a; |
3037 | if(b < min) |
3038 | min = b; |
3039 | if(c < min) |
3040 | min = c; |
3041 | return min; |
3042 | } |
3043 | |
3044 | int str_utf8_dist(const char *a, const char *b) |
3045 | { |
3046 | int buf_len = 2 * (str_length(str: a) + 1 + str_length(str: b) + 1); |
3047 | int *buf = (int *)calloc(nmemb: buf_len, size: sizeof(*buf)); |
3048 | int result = str_utf8_dist_buffer(a, b, buf, buf_len); |
3049 | free(ptr: buf); |
3050 | return result; |
3051 | } |
3052 | |
3053 | static int str_to_utf32_unchecked(const char *str, int **out) |
3054 | { |
3055 | int out_len = 0; |
3056 | while((**out = str_utf8_decode(ptr: &str))) |
3057 | { |
3058 | (*out)++; |
3059 | out_len++; |
3060 | } |
3061 | return out_len; |
3062 | } |
3063 | |
3064 | int str_utf32_dist_buffer(const int *a, int a_len, const int *b, int b_len, int *buf, int buf_len) |
3065 | { |
3066 | int i, j; |
3067 | dbg_assert(buf_len >= (a_len + 1) + (b_len + 1), "buffer too small" ); |
3068 | if(a_len > b_len) |
3069 | { |
3070 | int tmp1 = a_len; |
3071 | const int *tmp2 = a; |
3072 | |
3073 | a_len = b_len; |
3074 | a = b; |
3075 | |
3076 | b_len = tmp1; |
3077 | b = tmp2; |
3078 | } |
3079 | #define B(i, j) buf[((j)&1) * (a_len + 1) + (i)] |
3080 | for(i = 0; i <= a_len; i++) |
3081 | { |
3082 | B(i, 0) = i; |
3083 | } |
3084 | for(j = 1; j <= b_len; j++) |
3085 | { |
3086 | B(0, j) = j; |
3087 | for(i = 1; i <= a_len; i++) |
3088 | { |
3089 | int subst = (a[i - 1] != b[j - 1]); |
3090 | B(i, j) = min3( |
3091 | B(i - 1, j) + 1, |
3092 | B(i, j - 1) + 1, |
3093 | B(i - 1, j - 1) + subst); |
3094 | } |
3095 | } |
3096 | return B(a_len, b_len); |
3097 | #undef B |
3098 | } |
3099 | |
3100 | int str_utf8_dist_buffer(const char *a_utf8, const char *b_utf8, int *buf, int buf_len) |
3101 | { |
3102 | int a_utf8_len = str_length(str: a_utf8); |
3103 | int b_utf8_len = str_length(str: b_utf8); |
3104 | int *a, *b; // UTF-32 |
3105 | int a_len, b_len; // UTF-32 length |
3106 | dbg_assert(buf_len >= 2 * (a_utf8_len + 1 + b_utf8_len + 1), "buffer too small" ); |
3107 | if(a_utf8_len > b_utf8_len) |
3108 | { |
3109 | const char *tmp2 = a_utf8; |
3110 | a_utf8 = b_utf8; |
3111 | b_utf8 = tmp2; |
3112 | } |
3113 | a = buf; |
3114 | a_len = str_to_utf32_unchecked(str: a_utf8, out: &buf); |
3115 | b = buf; |
3116 | b_len = str_to_utf32_unchecked(str: b_utf8, out: &buf); |
3117 | return str_utf32_dist_buffer(a, a_len, b, b_len, buf, buf_len: buf_len - b_len - a_len); |
3118 | } |
3119 | |
3120 | const char *str_find_nocase(const char *haystack, const char *needle) |
3121 | { |
3122 | while(*haystack) /* native implementation */ |
3123 | { |
3124 | const char *a = haystack; |
3125 | const char *b = needle; |
3126 | while(*a && *b && tolower(c: (unsigned char)*a) == tolower(c: (unsigned char)*b)) |
3127 | { |
3128 | a++; |
3129 | b++; |
3130 | } |
3131 | if(!(*b)) |
3132 | return haystack; |
3133 | haystack++; |
3134 | } |
3135 | |
3136 | return 0; |
3137 | } |
3138 | |
3139 | const char *str_find(const char *haystack, const char *needle) |
3140 | { |
3141 | while(*haystack) /* native implementation */ |
3142 | { |
3143 | const char *a = haystack; |
3144 | const char *b = needle; |
3145 | while(*a && *b && *a == *b) |
3146 | { |
3147 | a++; |
3148 | b++; |
3149 | } |
3150 | if(!(*b)) |
3151 | return haystack; |
3152 | haystack++; |
3153 | } |
3154 | |
3155 | return 0; |
3156 | } |
3157 | |
3158 | const char *str_rchr(const char *haystack, char needle) |
3159 | { |
3160 | return strrchr(s: haystack, c: needle); |
3161 | } |
3162 | |
3163 | int str_countchr(const char *haystack, char needle) |
3164 | { |
3165 | int count = 0; |
3166 | while(*haystack) |
3167 | { |
3168 | if(*haystack == needle) |
3169 | count++; |
3170 | haystack++; |
3171 | } |
3172 | return count; |
3173 | } |
3174 | |
3175 | void str_hex(char *dst, int dst_size, const void *data, int data_size) |
3176 | { |
3177 | static const char hex[] = "0123456789ABCDEF" ; |
3178 | int data_index; |
3179 | int dst_index; |
3180 | for(data_index = 0, dst_index = 0; data_index < data_size && dst_index < dst_size - 3; data_index++) |
3181 | { |
3182 | dst[data_index * 3] = hex[((const unsigned char *)data)[data_index] >> 4]; |
3183 | dst[data_index * 3 + 1] = hex[((const unsigned char *)data)[data_index] & 0xf]; |
3184 | dst[data_index * 3 + 2] = ' '; |
3185 | dst_index += 3; |
3186 | } |
3187 | dst[dst_index] = '\0'; |
3188 | } |
3189 | |
3190 | void str_hex_cstyle(char *dst, int dst_size, const void *data, int data_size, int bytes_per_line) |
3191 | { |
3192 | static const char hex[] = "0123456789ABCDEF" ; |
3193 | int data_index; |
3194 | int dst_index; |
3195 | int remaining_bytes_per_line = bytes_per_line; |
3196 | for(data_index = 0, dst_index = 0; data_index < data_size && dst_index < dst_size - 6; data_index++) |
3197 | { |
3198 | --remaining_bytes_per_line; |
3199 | dst[data_index * 6] = '0'; |
3200 | dst[data_index * 6 + 1] = 'x'; |
3201 | dst[data_index * 6 + 2] = hex[((const unsigned char *)data)[data_index] >> 4]; |
3202 | dst[data_index * 6 + 3] = hex[((const unsigned char *)data)[data_index] & 0xf]; |
3203 | dst[data_index * 6 + 4] = ','; |
3204 | if(remaining_bytes_per_line == 0) |
3205 | { |
3206 | dst[data_index * 6 + 5] = '\n'; |
3207 | remaining_bytes_per_line = bytes_per_line; |
3208 | } |
3209 | else |
3210 | { |
3211 | dst[data_index * 6 + 5] = ' '; |
3212 | } |
3213 | dst_index += 6; |
3214 | } |
3215 | dst[dst_index] = '\0'; |
3216 | // Remove trailing comma and space/newline |
3217 | if(dst_index >= 1) |
3218 | dst[dst_index - 1] = '\0'; |
3219 | if(dst_index >= 2) |
3220 | dst[dst_index - 2] = '\0'; |
3221 | } |
3222 | |
3223 | static int hexval(char x) |
3224 | { |
3225 | switch(x) |
3226 | { |
3227 | case '0': return 0; |
3228 | case '1': return 1; |
3229 | case '2': return 2; |
3230 | case '3': return 3; |
3231 | case '4': return 4; |
3232 | case '5': return 5; |
3233 | case '6': return 6; |
3234 | case '7': return 7; |
3235 | case '8': return 8; |
3236 | case '9': return 9; |
3237 | case 'a': |
3238 | case 'A': return 10; |
3239 | case 'b': |
3240 | case 'B': return 11; |
3241 | case 'c': |
3242 | case 'C': return 12; |
3243 | case 'd': |
3244 | case 'D': return 13; |
3245 | case 'e': |
3246 | case 'E': return 14; |
3247 | case 'f': |
3248 | case 'F': return 15; |
3249 | default: return -1; |
3250 | } |
3251 | } |
3252 | |
3253 | static int byteval(const char *hex, unsigned char *dst) |
3254 | { |
3255 | int v1 = hexval(x: hex[0]); |
3256 | int v2 = hexval(x: hex[1]); |
3257 | |
3258 | if(v1 < 0 || v2 < 0) |
3259 | return 1; |
3260 | |
3261 | *dst = v1 * 16 + v2; |
3262 | return 0; |
3263 | } |
3264 | |
3265 | int str_hex_decode(void *dst, int dst_size, const char *src) |
3266 | { |
3267 | unsigned char *cdst = (unsigned char *)dst; |
3268 | int slen = str_length(str: src); |
3269 | int len = slen / 2; |
3270 | int i; |
3271 | if(slen != dst_size * 2) |
3272 | return 2; |
3273 | |
3274 | for(i = 0; i < len && dst_size; i++, dst_size--) |
3275 | { |
3276 | if(byteval(hex: src + i * 2, dst: cdst++)) |
3277 | return 1; |
3278 | } |
3279 | return 0; |
3280 | } |
3281 | |
3282 | void str_base64(char *dst, int dst_size, const void *data_raw, int data_size) |
3283 | { |
3284 | static const char DIGITS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" ; |
3285 | |
3286 | const unsigned char *data = (const unsigned char *)data_raw; |
3287 | unsigned value = 0; |
3288 | int num_bits = 0; |
3289 | int i = 0; |
3290 | int o = 0; |
3291 | |
3292 | dst_size -= 1; |
3293 | dst[dst_size] = 0; |
3294 | while(true) |
3295 | { |
3296 | if(num_bits < 6 && i < data_size) |
3297 | { |
3298 | value = (value << 8) | data[i]; |
3299 | num_bits += 8; |
3300 | i += 1; |
3301 | } |
3302 | if(o == dst_size) |
3303 | { |
3304 | return; |
3305 | } |
3306 | if(num_bits > 0) |
3307 | { |
3308 | unsigned padded; |
3309 | if(num_bits >= 6) |
3310 | { |
3311 | padded = (value >> (num_bits - 6)) & 0x3f; |
3312 | } |
3313 | else |
3314 | { |
3315 | padded = (value << (6 - num_bits)) & 0x3f; |
3316 | } |
3317 | dst[o] = DIGITS[padded]; |
3318 | num_bits -= 6; |
3319 | o += 1; |
3320 | } |
3321 | else if(o % 4 != 0) |
3322 | { |
3323 | dst[o] = '='; |
3324 | o += 1; |
3325 | } |
3326 | else |
3327 | { |
3328 | dst[o] = 0; |
3329 | return; |
3330 | } |
3331 | } |
3332 | } |
3333 | |
3334 | static int base64_digit_value(char digit) |
3335 | { |
3336 | if('A' <= digit && digit <= 'Z') |
3337 | { |
3338 | return digit - 'A'; |
3339 | } |
3340 | else if('a' <= digit && digit <= 'z') |
3341 | { |
3342 | return digit - 'a' + 26; |
3343 | } |
3344 | else if('0' <= digit && digit <= '9') |
3345 | { |
3346 | return digit - '0' + 52; |
3347 | } |
3348 | else if(digit == '+') |
3349 | { |
3350 | return 62; |
3351 | } |
3352 | else if(digit == '/') |
3353 | { |
3354 | return 63; |
3355 | } |
3356 | return -1; |
3357 | } |
3358 | |
3359 | int str_base64_decode(void *dst_raw, int dst_size, const char *data) |
3360 | { |
3361 | unsigned char *dst = (unsigned char *)dst_raw; |
3362 | int data_len = str_length(str: data); |
3363 | |
3364 | int i; |
3365 | int o = 0; |
3366 | |
3367 | if(data_len % 4 != 0) |
3368 | { |
3369 | return -3; |
3370 | } |
3371 | if(data_len / 4 * 3 > dst_size) |
3372 | { |
3373 | // Output buffer too small. |
3374 | return -2; |
3375 | } |
3376 | for(i = 0; i < data_len; i += 4) |
3377 | { |
3378 | int num_output_bytes = 3; |
3379 | char copy[4]; |
3380 | int d[4]; |
3381 | int value; |
3382 | int b; |
3383 | mem_copy(dest: copy, source: data + i, size: sizeof(copy)); |
3384 | if(i == data_len - 4) |
3385 | { |
3386 | if(copy[3] == '=') |
3387 | { |
3388 | copy[3] = 'A'; |
3389 | num_output_bytes = 2; |
3390 | if(copy[2] == '=') |
3391 | { |
3392 | copy[2] = 'A'; |
3393 | num_output_bytes = 1; |
3394 | } |
3395 | } |
3396 | } |
3397 | d[0] = base64_digit_value(digit: copy[0]); |
3398 | d[1] = base64_digit_value(digit: copy[1]); |
3399 | d[2] = base64_digit_value(digit: copy[2]); |
3400 | d[3] = base64_digit_value(digit: copy[3]); |
3401 | if(d[0] == -1 || d[1] == -1 || d[2] == -1 || d[3] == -1) |
3402 | { |
3403 | // Invalid digit. |
3404 | return -1; |
3405 | } |
3406 | value = (d[0] << 18) | (d[1] << 12) | (d[2] << 6) | d[3]; |
3407 | for(b = 0; b < 3; b++) |
3408 | { |
3409 | unsigned char byte_value = (value >> (16 - 8 * b)) & 0xff; |
3410 | if(b < num_output_bytes) |
3411 | { |
3412 | dst[o] = byte_value; |
3413 | o += 1; |
3414 | } |
3415 | else |
3416 | { |
3417 | if(byte_value != 0) |
3418 | { |
3419 | // Padding not zeroed. |
3420 | return -2; |
3421 | } |
3422 | } |
3423 | } |
3424 | } |
3425 | return o; |
3426 | } |
3427 | |
3428 | #ifdef __GNUC__ |
3429 | #pragma GCC diagnostic push |
3430 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" |
3431 | #endif |
3432 | void str_timestamp_ex(time_t time_data, char *buffer, int buffer_size, const char *format) |
3433 | { |
3434 | struct tm *time_info = time_localtime_threadlocal(time_data: &time_data); |
3435 | strftime(s: buffer, maxsize: buffer_size, format: format, tp: time_info); |
3436 | buffer[buffer_size - 1] = 0; /* assure null termination */ |
3437 | } |
3438 | |
3439 | void str_timestamp_format(char *buffer, int buffer_size, const char *format) |
3440 | { |
3441 | time_t time_data; |
3442 | time(timer: &time_data); |
3443 | str_timestamp_ex(time_data, buffer, buffer_size, format); |
3444 | } |
3445 | |
3446 | void str_timestamp(char *buffer, int buffer_size) |
3447 | { |
3448 | str_timestamp_format(buffer, buffer_size, FORMAT_NOSPACE); |
3449 | } |
3450 | |
3451 | bool timestamp_from_str(const char *string, const char *format, time_t *timestamp) |
3452 | { |
3453 | std::tm tm{}; |
3454 | std::istringstream ss(string); |
3455 | ss >> std::get_time(tmb: &tm, fmt: format); |
3456 | if(ss.fail() || !ss.eof()) |
3457 | return false; |
3458 | |
3459 | time_t result = mktime(tp: &tm); |
3460 | if(result < 0) |
3461 | return false; |
3462 | |
3463 | *timestamp = result; |
3464 | return true; |
3465 | } |
3466 | #ifdef __GNUC__ |
3467 | #pragma GCC diagnostic pop |
3468 | #endif |
3469 | |
3470 | int str_time(int64_t centisecs, int format, char *buffer, int buffer_size) |
3471 | { |
3472 | const int sec = 100; |
3473 | const int min = 60 * sec; |
3474 | const int hour = 60 * min; |
3475 | const int day = 24 * hour; |
3476 | |
3477 | if(buffer_size <= 0) |
3478 | return -1; |
3479 | |
3480 | if(centisecs < 0) |
3481 | centisecs = 0; |
3482 | |
3483 | buffer[0] = 0; |
3484 | |
3485 | switch(format) |
3486 | { |
3487 | case TIME_DAYS: |
3488 | if(centisecs >= day) |
3489 | return str_format(buffer, buffer_size, "%" PRId64 "d %02" PRId64 ":%02" PRId64 ":%02" PRId64, centisecs / day, |
3490 | (centisecs % day) / hour, (centisecs % hour) / min, (centisecs % min) / sec); |
3491 | [[fallthrough]]; |
3492 | case TIME_HOURS: |
3493 | if(centisecs >= hour) |
3494 | return str_format(buffer, buffer_size, "%02" PRId64 ":%02" PRId64 ":%02" PRId64, centisecs / hour, |
3495 | (centisecs % hour) / min, (centisecs % min) / sec); |
3496 | [[fallthrough]]; |
3497 | case TIME_MINS: |
3498 | return str_format(buffer, buffer_size, "%02" PRId64 ":%02" PRId64, centisecs / min, |
3499 | (centisecs % min) / sec); |
3500 | case TIME_HOURS_CENTISECS: |
3501 | if(centisecs >= hour) |
3502 | return str_format(buffer, buffer_size, "%02" PRId64 ":%02" PRId64 ":%02" PRId64 ".%02" PRId64, centisecs / hour, |
3503 | (centisecs % hour) / min, (centisecs % min) / sec, centisecs % sec); |
3504 | [[fallthrough]]; |
3505 | case TIME_MINS_CENTISECS: |
3506 | if(centisecs >= min) |
3507 | return str_format(buffer, buffer_size, "%02" PRId64 ":%02" PRId64 ".%02" PRId64, centisecs / min, |
3508 | (centisecs % min) / sec, centisecs % sec); |
3509 | [[fallthrough]]; |
3510 | case TIME_SECS_CENTISECS: |
3511 | return str_format(buffer, buffer_size, "%02" PRId64 ".%02" PRId64, (centisecs % min) / sec, centisecs % sec); |
3512 | } |
3513 | |
3514 | return -1; |
3515 | } |
3516 | |
3517 | int str_time_float(float secs, int format, char *buffer, int buffer_size) |
3518 | { |
3519 | return str_time(centisecs: llroundf(x: secs * 1000) / 10, format, buffer, buffer_size); |
3520 | } |
3521 | |
3522 | void str_escape(char **dst, const char *src, const char *end) |
3523 | { |
3524 | while(*src && *dst + 1 < end) |
3525 | { |
3526 | if(*src == '"' || *src == '\\') // escape \ and " |
3527 | { |
3528 | if(*dst + 2 < end) |
3529 | *(*dst)++ = '\\'; |
3530 | else |
3531 | break; |
3532 | } |
3533 | *(*dst)++ = *src++; |
3534 | } |
3535 | **dst = 0; |
3536 | } |
3537 | |
3538 | void net_stats(NETSTATS *stats_inout) |
3539 | { |
3540 | *stats_inout = network_stats; |
3541 | } |
3542 | |
3543 | int str_isspace(char c) |
3544 | { |
3545 | return c == ' ' || c == '\n' || c == '\r' || c == '\t'; |
3546 | } |
3547 | |
3548 | char str_uppercase(char c) |
3549 | { |
3550 | if(c >= 'a' && c <= 'z') |
3551 | return 'A' + (c - 'a'); |
3552 | return c; |
3553 | } |
3554 | |
3555 | bool str_isnum(char c) |
3556 | { |
3557 | return c >= '0' && c <= '9'; |
3558 | } |
3559 | |
3560 | int str_isallnum(const char *str) |
3561 | { |
3562 | while(*str) |
3563 | { |
3564 | if(!str_isnum(c: *str)) |
3565 | return 0; |
3566 | str++; |
3567 | } |
3568 | return 1; |
3569 | } |
3570 | |
3571 | int str_isallnum_hex(const char *str) |
3572 | { |
3573 | while(*str) |
3574 | { |
3575 | if(!str_isnum(c: *str) && !(*str >= 'a' && *str <= 'f') && !(*str >= 'A' && *str <= 'F')) |
3576 | return 0; |
3577 | str++; |
3578 | } |
3579 | return 1; |
3580 | } |
3581 | |
3582 | int str_toint(const char *str) |
3583 | { |
3584 | return str_toint_base(str, base: 10); |
3585 | } |
3586 | |
3587 | bool str_toint(const char *str, int *out) |
3588 | { |
3589 | // returns true if conversion was successful |
3590 | char *end; |
3591 | int value = strtol(nptr: str, endptr: &end, base: 10); |
3592 | if(*end != '\0') |
3593 | return false; |
3594 | if(out != nullptr) |
3595 | *out = value; |
3596 | return true; |
3597 | } |
3598 | |
3599 | int str_toint_base(const char *str, int base) |
3600 | { |
3601 | return strtol(nptr: str, endptr: nullptr, base: base); |
3602 | } |
3603 | |
3604 | unsigned long str_toulong_base(const char *str, int base) |
3605 | { |
3606 | return strtoul(nptr: str, endptr: nullptr, base: base); |
3607 | } |
3608 | |
3609 | int64_t str_toint64_base(const char *str, int base) |
3610 | { |
3611 | return strtoll(nptr: str, endptr: nullptr, base: base); |
3612 | } |
3613 | |
3614 | float str_tofloat(const char *str) |
3615 | { |
3616 | return strtod(nptr: str, endptr: nullptr); |
3617 | } |
3618 | |
3619 | bool str_tofloat(const char *str, float *out) |
3620 | { |
3621 | // returns true if conversion was successful |
3622 | char *end; |
3623 | float value = strtod(nptr: str, endptr: &end); |
3624 | if(*end != '\0') |
3625 | return false; |
3626 | if(out != nullptr) |
3627 | *out = value; |
3628 | return true; |
3629 | } |
3630 | |
3631 | int str_utf8_comp_nocase(const char *a, const char *b) |
3632 | { |
3633 | int code_a; |
3634 | int code_b; |
3635 | |
3636 | while(*a && *b) |
3637 | { |
3638 | code_a = str_utf8_tolower(code: str_utf8_decode(ptr: &a)); |
3639 | code_b = str_utf8_tolower(code: str_utf8_decode(ptr: &b)); |
3640 | |
3641 | if(code_a != code_b) |
3642 | return code_a - code_b; |
3643 | } |
3644 | return (unsigned char)*a - (unsigned char)*b; |
3645 | } |
3646 | |
3647 | int str_utf8_comp_nocase_num(const char *a, const char *b, int num) |
3648 | { |
3649 | int code_a; |
3650 | int code_b; |
3651 | const char *old_a = a; |
3652 | |
3653 | if(num <= 0) |
3654 | return 0; |
3655 | |
3656 | while(*a && *b) |
3657 | { |
3658 | code_a = str_utf8_tolower(code: str_utf8_decode(ptr: &a)); |
3659 | code_b = str_utf8_tolower(code: str_utf8_decode(ptr: &b)); |
3660 | |
3661 | if(code_a != code_b) |
3662 | return code_a - code_b; |
3663 | |
3664 | if(a - old_a >= num) |
3665 | return 0; |
3666 | } |
3667 | |
3668 | return (unsigned char)*a - (unsigned char)*b; |
3669 | } |
3670 | |
3671 | const char *str_utf8_find_nocase(const char *haystack, const char *needle, const char **end) |
3672 | { |
3673 | while(*haystack) /* native implementation */ |
3674 | { |
3675 | const char *a = haystack; |
3676 | const char *b = needle; |
3677 | const char *a_next = a; |
3678 | const char *b_next = b; |
3679 | while(*a && *b && str_utf8_tolower(code: str_utf8_decode(ptr: &a_next)) == str_utf8_tolower(code: str_utf8_decode(ptr: &b_next))) |
3680 | { |
3681 | a = a_next; |
3682 | b = b_next; |
3683 | } |
3684 | if(!(*b)) |
3685 | { |
3686 | if(end != nullptr) |
3687 | *end = a_next; |
3688 | return haystack; |
3689 | } |
3690 | str_utf8_decode(ptr: &haystack); |
3691 | } |
3692 | |
3693 | if(end != nullptr) |
3694 | *end = nullptr; |
3695 | return nullptr; |
3696 | } |
3697 | |
3698 | int str_utf8_isspace(int code) |
3699 | { |
3700 | return code <= 0x0020 || code == 0x0085 || code == 0x00A0 || code == 0x034F || |
3701 | code == 0x115F || code == 0x1160 || code == 0x1680 || code == 0x180E || |
3702 | (code >= 0x2000 && code <= 0x200F) || (code >= 0x2028 && code <= 0x202F) || |
3703 | (code >= 0x205F && code <= 0x2064) || (code >= 0x206A && code <= 0x206F) || |
3704 | code == 0x2800 || code == 0x3000 || code == 0x3164 || |
3705 | (code >= 0xFE00 && code <= 0xFE0F) || code == 0xFEFF || code == 0xFFA0 || |
3706 | (code >= 0xFFF9 && code <= 0xFFFC); |
3707 | } |
3708 | |
3709 | const char *str_utf8_skip_whitespaces(const char *str) |
3710 | { |
3711 | const char *str_old; |
3712 | int code; |
3713 | |
3714 | while(*str) |
3715 | { |
3716 | str_old = str; |
3717 | code = str_utf8_decode(ptr: &str); |
3718 | |
3719 | // check if unicode is not empty |
3720 | if(!str_utf8_isspace(code)) |
3721 | { |
3722 | return str_old; |
3723 | } |
3724 | } |
3725 | |
3726 | return str; |
3727 | } |
3728 | |
3729 | void str_utf8_trim_right(char *param) |
3730 | { |
3731 | const char *str = param; |
3732 | char *end = 0; |
3733 | while(*str) |
3734 | { |
3735 | char *str_old = (char *)str; |
3736 | int code = str_utf8_decode(ptr: &str); |
3737 | |
3738 | // check if unicode is not empty |
3739 | if(!str_utf8_isspace(code)) |
3740 | { |
3741 | end = 0; |
3742 | } |
3743 | else if(!end) |
3744 | { |
3745 | end = str_old; |
3746 | } |
3747 | } |
3748 | if(end) |
3749 | { |
3750 | *end = 0; |
3751 | } |
3752 | } |
3753 | |
3754 | int str_utf8_isstart(char c) |
3755 | { |
3756 | if((c & 0xC0) == 0x80) /* 10xxxxxx */ |
3757 | return 0; |
3758 | return 1; |
3759 | } |
3760 | |
3761 | int str_utf8_rewind(const char *str, int cursor) |
3762 | { |
3763 | while(cursor) |
3764 | { |
3765 | cursor--; |
3766 | if(str_utf8_isstart(c: *(str + cursor))) |
3767 | break; |
3768 | } |
3769 | return cursor; |
3770 | } |
3771 | |
3772 | int str_utf8_fix_truncation(char *str) |
3773 | { |
3774 | int len = str_length(str); |
3775 | if(len > 0) |
3776 | { |
3777 | int last_char_index = str_utf8_rewind(str, cursor: len); |
3778 | const char *last_char = str + last_char_index; |
3779 | // Fix truncated UTF-8. |
3780 | if(str_utf8_decode(ptr: &last_char) == -1) |
3781 | { |
3782 | str[last_char_index] = 0; |
3783 | return last_char_index; |
3784 | } |
3785 | } |
3786 | return len; |
3787 | } |
3788 | |
3789 | int str_utf8_forward(const char *str, int cursor) |
3790 | { |
3791 | const char *ptr = str + cursor; |
3792 | if(str_utf8_decode(ptr: &ptr) == 0) |
3793 | { |
3794 | return cursor; |
3795 | } |
3796 | return ptr - str; |
3797 | } |
3798 | |
3799 | int str_utf8_encode(char *ptr, int chr) |
3800 | { |
3801 | /* encode */ |
3802 | if(chr <= 0x7F) |
3803 | { |
3804 | ptr[0] = (char)chr; |
3805 | return 1; |
3806 | } |
3807 | else if(chr <= 0x7FF) |
3808 | { |
3809 | ptr[0] = 0xC0 | ((chr >> 6) & 0x1F); |
3810 | ptr[1] = 0x80 | (chr & 0x3F); |
3811 | return 2; |
3812 | } |
3813 | else if(chr <= 0xFFFF) |
3814 | { |
3815 | ptr[0] = 0xE0 | ((chr >> 12) & 0x0F); |
3816 | ptr[1] = 0x80 | ((chr >> 6) & 0x3F); |
3817 | ptr[2] = 0x80 | (chr & 0x3F); |
3818 | return 3; |
3819 | } |
3820 | else if(chr <= 0x10FFFF) |
3821 | { |
3822 | ptr[0] = 0xF0 | ((chr >> 18) & 0x07); |
3823 | ptr[1] = 0x80 | ((chr >> 12) & 0x3F); |
3824 | ptr[2] = 0x80 | ((chr >> 6) & 0x3F); |
3825 | ptr[3] = 0x80 | (chr & 0x3F); |
3826 | return 4; |
3827 | } |
3828 | |
3829 | return 0; |
3830 | } |
3831 | |
3832 | static unsigned char str_byte_next(const char **ptr) |
3833 | { |
3834 | unsigned char byte_value = **ptr; |
3835 | (*ptr)++; |
3836 | return byte_value; |
3837 | } |
3838 | |
3839 | static void str_byte_rewind(const char **ptr) |
3840 | { |
3841 | (*ptr)--; |
3842 | } |
3843 | |
3844 | int str_utf8_decode(const char **ptr) |
3845 | { |
3846 | // As per https://encoding.spec.whatwg.org/#utf-8-decoder. |
3847 | unsigned char utf8_lower_boundary = 0x80; |
3848 | unsigned char utf8_upper_boundary = 0xBF; |
3849 | int utf8_code_point = 0; |
3850 | int utf8_bytes_seen = 0; |
3851 | int utf8_bytes_needed = 0; |
3852 | while(true) |
3853 | { |
3854 | unsigned char byte_value = str_byte_next(ptr); |
3855 | if(utf8_bytes_needed == 0) |
3856 | { |
3857 | if(byte_value <= 0x7F) |
3858 | { |
3859 | return byte_value; |
3860 | } |
3861 | else if(0xC2 <= byte_value && byte_value <= 0xDF) |
3862 | { |
3863 | utf8_bytes_needed = 1; |
3864 | utf8_code_point = byte_value - 0xC0; |
3865 | } |
3866 | else if(0xE0 <= byte_value && byte_value <= 0xEF) |
3867 | { |
3868 | if(byte_value == 0xE0) |
3869 | utf8_lower_boundary = 0xA0; |
3870 | if(byte_value == 0xED) |
3871 | utf8_upper_boundary = 0x9F; |
3872 | utf8_bytes_needed = 2; |
3873 | utf8_code_point = byte_value - 0xE0; |
3874 | } |
3875 | else if(0xF0 <= byte_value && byte_value <= 0xF4) |
3876 | { |
3877 | if(byte_value == 0xF0) |
3878 | utf8_lower_boundary = 0x90; |
3879 | if(byte_value == 0xF4) |
3880 | utf8_upper_boundary = 0x8F; |
3881 | utf8_bytes_needed = 3; |
3882 | utf8_code_point = byte_value - 0xF0; |
3883 | } |
3884 | else |
3885 | { |
3886 | return -1; // Error. |
3887 | } |
3888 | utf8_code_point = utf8_code_point << (6 * utf8_bytes_needed); |
3889 | continue; |
3890 | } |
3891 | if(!(utf8_lower_boundary <= byte_value && byte_value <= utf8_upper_boundary)) |
3892 | { |
3893 | // Resetting variables not necessary, will be done when |
3894 | // the function is called again. |
3895 | str_byte_rewind(ptr); |
3896 | return -1; |
3897 | } |
3898 | utf8_lower_boundary = 0x80; |
3899 | utf8_upper_boundary = 0xBF; |
3900 | utf8_bytes_seen += 1; |
3901 | utf8_code_point = utf8_code_point + ((byte_value - 0x80) << (6 * (utf8_bytes_needed - utf8_bytes_seen))); |
3902 | if(utf8_bytes_seen != utf8_bytes_needed) |
3903 | { |
3904 | continue; |
3905 | } |
3906 | // Resetting variables not necessary, see above. |
3907 | return utf8_code_point; |
3908 | } |
3909 | } |
3910 | |
3911 | int str_utf8_check(const char *str) |
3912 | { |
3913 | int codepoint; |
3914 | while((codepoint = str_utf8_decode(ptr: &str))) |
3915 | { |
3916 | if(codepoint == -1) |
3917 | { |
3918 | return 0; |
3919 | } |
3920 | } |
3921 | return 1; |
3922 | } |
3923 | |
3924 | void str_utf8_stats(const char *str, size_t max_size, size_t max_count, size_t *size, size_t *count) |
3925 | { |
3926 | const char *cursor = str; |
3927 | *size = 0; |
3928 | *count = 0; |
3929 | while(*size < max_size && *count < max_count) |
3930 | { |
3931 | if(str_utf8_decode(ptr: &cursor) == 0) |
3932 | { |
3933 | break; |
3934 | } |
3935 | if((size_t)(cursor - str) >= max_size) |
3936 | { |
3937 | break; |
3938 | } |
3939 | *size = cursor - str; |
3940 | ++(*count); |
3941 | } |
3942 | } |
3943 | |
3944 | size_t str_utf8_offset_bytes_to_chars(const char *str, size_t byte_offset) |
3945 | { |
3946 | size_t char_offset = 0; |
3947 | size_t current_offset = 0; |
3948 | while(current_offset < byte_offset) |
3949 | { |
3950 | const size_t prev_byte_offset = current_offset; |
3951 | current_offset = str_utf8_forward(str, cursor: current_offset); |
3952 | if(current_offset == prev_byte_offset) |
3953 | break; |
3954 | char_offset++; |
3955 | } |
3956 | return char_offset; |
3957 | } |
3958 | |
3959 | size_t str_utf8_offset_chars_to_bytes(const char *str, size_t char_offset) |
3960 | { |
3961 | size_t byte_offset = 0; |
3962 | for(size_t i = 0; i < char_offset; i++) |
3963 | { |
3964 | const size_t prev_byte_offset = byte_offset; |
3965 | byte_offset = str_utf8_forward(str, cursor: byte_offset); |
3966 | if(byte_offset == prev_byte_offset) |
3967 | break; |
3968 | } |
3969 | return byte_offset; |
3970 | } |
3971 | |
3972 | unsigned str_quickhash(const char *str) |
3973 | { |
3974 | unsigned hash = 5381; |
3975 | for(; *str; str++) |
3976 | hash = ((hash << 5) + hash) + (*str); /* hash * 33 + c */ |
3977 | return hash; |
3978 | } |
3979 | |
3980 | static const char *str_token_get(const char *str, const char *delim, int *length) |
3981 | { |
3982 | size_t len = strspn(s: str, accept: delim); |
3983 | if(len > 1) |
3984 | str++; |
3985 | else |
3986 | str += len; |
3987 | if(!*str) |
3988 | return NULL; |
3989 | |
3990 | *length = strcspn(s: str, reject: delim); |
3991 | return str; |
3992 | } |
3993 | |
3994 | int str_in_list(const char *list, const char *delim, const char *needle) |
3995 | { |
3996 | const char *tok = list; |
3997 | int len = 0, notfound = 1, needlelen = str_length(str: needle); |
3998 | |
3999 | while(notfound && (tok = str_token_get(str: tok, delim, length: &len))) |
4000 | { |
4001 | notfound = needlelen != len || str_comp_num(a: tok, b: needle, num: len); |
4002 | tok = tok + len; |
4003 | } |
4004 | |
4005 | return !notfound; |
4006 | } |
4007 | |
4008 | const char *str_next_token(const char *str, const char *delim, char *buffer, int buffer_size) |
4009 | { |
4010 | int len = 0; |
4011 | const char *tok = str_token_get(str, delim, length: &len); |
4012 | if(len < 0 || tok == NULL) |
4013 | { |
4014 | buffer[0] = '\0'; |
4015 | return NULL; |
4016 | } |
4017 | |
4018 | len = buffer_size > len ? len : buffer_size - 1; |
4019 | mem_copy(dest: buffer, source: tok, size: len); |
4020 | buffer[len] = '\0'; |
4021 | |
4022 | return tok + len; |
4023 | } |
4024 | |
4025 | static_assert(sizeof(unsigned) == 4, "unsigned must be 4 bytes in size" ); |
4026 | static_assert(sizeof(unsigned) == sizeof(int), "unsigned and int must have the same size" ); |
4027 | |
4028 | unsigned bytes_be_to_uint(const unsigned char *bytes) |
4029 | { |
4030 | return ((bytes[0] & 0xffu) << 24u) | ((bytes[1] & 0xffu) << 16u) | ((bytes[2] & 0xffu) << 8u) | (bytes[3] & 0xffu); |
4031 | } |
4032 | |
4033 | void uint_to_bytes_be(unsigned char *bytes, unsigned value) |
4034 | { |
4035 | bytes[0] = (value >> 24u) & 0xffu; |
4036 | bytes[1] = (value >> 16u) & 0xffu; |
4037 | bytes[2] = (value >> 8u) & 0xffu; |
4038 | bytes[3] = value & 0xffu; |
4039 | } |
4040 | |
4041 | int pid() |
4042 | { |
4043 | #if defined(CONF_FAMILY_WINDOWS) |
4044 | return _getpid(); |
4045 | #else |
4046 | return getpid(); |
4047 | #endif |
4048 | } |
4049 | |
4050 | void cmdline_fix(int *argc, const char ***argv) |
4051 | { |
4052 | #if defined(CONF_FAMILY_WINDOWS) |
4053 | int wide_argc = 0; |
4054 | WCHAR **wide_argv = CommandLineToArgvW(GetCommandLineW(), &wide_argc); |
4055 | dbg_assert(wide_argv != NULL, "CommandLineToArgvW failure" ); |
4056 | dbg_assert(wide_argc > 0, "Invalid argc value" ); |
4057 | |
4058 | int total_size = 0; |
4059 | |
4060 | for(int i = 0; i < wide_argc; i++) |
4061 | { |
4062 | int size = WideCharToMultiByte(CP_UTF8, 0, wide_argv[i], -1, NULL, 0, NULL, NULL); |
4063 | dbg_assert(size != 0, "WideCharToMultiByte failure" ); |
4064 | total_size += size; |
4065 | } |
4066 | |
4067 | char **new_argv = (char **)malloc((wide_argc + 1) * sizeof(*new_argv)); |
4068 | new_argv[0] = (char *)malloc(total_size); |
4069 | mem_zero(new_argv[0], total_size); |
4070 | |
4071 | int remaining_size = total_size; |
4072 | for(int i = 0; i < wide_argc; i++) |
4073 | { |
4074 | int size = WideCharToMultiByte(CP_UTF8, 0, wide_argv[i], -1, new_argv[i], remaining_size, NULL, NULL); |
4075 | dbg_assert(size != 0, "WideCharToMultiByte failure" ); |
4076 | |
4077 | remaining_size -= size; |
4078 | new_argv[i + 1] = new_argv[i] + size; |
4079 | } |
4080 | |
4081 | LocalFree(wide_argv); |
4082 | new_argv[wide_argc] = 0; |
4083 | *argc = wide_argc; |
4084 | *argv = (const char **)new_argv; |
4085 | #endif |
4086 | } |
4087 | |
4088 | void cmdline_free(int argc, const char **argv) |
4089 | { |
4090 | #if defined(CONF_FAMILY_WINDOWS) |
4091 | free((void *)*argv); |
4092 | free((char **)argv); |
4093 | #endif |
4094 | } |
4095 | |
4096 | PROCESS shell_execute(const char *file, EShellExecuteWindowState window_state) |
4097 | { |
4098 | #if defined(CONF_FAMILY_WINDOWS) |
4099 | const std::wstring wide_file = windows_utf8_to_wide(file); |
4100 | |
4101 | SHELLEXECUTEINFOW info; |
4102 | mem_zero(&info, sizeof(SHELLEXECUTEINFOW)); |
4103 | info.cbSize = sizeof(SHELLEXECUTEINFOW); |
4104 | info.lpVerb = L"open" ; |
4105 | info.lpFile = wide_file.c_str(); |
4106 | switch(window_state) |
4107 | { |
4108 | case EShellExecuteWindowState::FOREGROUND: |
4109 | info.nShow = SW_SHOW; |
4110 | break; |
4111 | case EShellExecuteWindowState::BACKGROUND: |
4112 | info.nShow = SW_SHOWMINNOACTIVE; |
4113 | break; |
4114 | default: |
4115 | dbg_assert(false, "window_state invalid" ); |
4116 | dbg_break(); |
4117 | } |
4118 | info.fMask = SEE_MASK_NOCLOSEPROCESS; |
4119 | // Save and restore the FPU control word because ShellExecute might change it |
4120 | fenv_t floating_point_environment; |
4121 | int fegetenv_result = fegetenv(&floating_point_environment); |
4122 | ShellExecuteExW(&info); |
4123 | if(fegetenv_result == 0) |
4124 | fesetenv(&floating_point_environment); |
4125 | return info.hProcess; |
4126 | #elif defined(CONF_FAMILY_UNIX) |
4127 | char *argv[2]; |
4128 | pid_t pid; |
4129 | argv[0] = (char *)file; |
4130 | argv[1] = NULL; |
4131 | pid = fork(); |
4132 | if(pid == -1) |
4133 | { |
4134 | return 0; |
4135 | } |
4136 | if(pid == 0) |
4137 | { |
4138 | execvp(file: file, argv: argv); |
4139 | _exit(status: 1); |
4140 | } |
4141 | return pid; |
4142 | #endif |
4143 | } |
4144 | |
4145 | int kill_process(PROCESS process) |
4146 | { |
4147 | #if defined(CONF_FAMILY_WINDOWS) |
4148 | BOOL success = TerminateProcess(process, 0); |
4149 | BOOL is_alive = is_process_alive(process); |
4150 | if(success || !is_alive) |
4151 | { |
4152 | CloseHandle(process); |
4153 | return true; |
4154 | } |
4155 | return false; |
4156 | #elif defined(CONF_FAMILY_UNIX) |
4157 | if(!is_process_alive(process)) |
4158 | return true; |
4159 | int status; |
4160 | kill(pid: process, SIGTERM); |
4161 | return waitpid(pid: process, stat_loc: &status, options: 0) != -1; |
4162 | #endif |
4163 | } |
4164 | |
4165 | bool is_process_alive(PROCESS process) |
4166 | { |
4167 | if(process == INVALID_PROCESS) |
4168 | return false; |
4169 | #if defined(CONF_FAMILY_WINDOWS) |
4170 | DWORD exit_code; |
4171 | GetExitCodeProcess(process, &exit_code); |
4172 | return exit_code == STILL_ACTIVE; |
4173 | #else |
4174 | return waitpid(pid: process, stat_loc: nullptr, WNOHANG) == 0; |
4175 | #endif |
4176 | } |
4177 | |
4178 | #if !defined(CONF_PLATFORM_ANDROID) |
4179 | int open_link(const char *link) |
4180 | { |
4181 | #if defined(CONF_FAMILY_WINDOWS) |
4182 | const std::wstring wide_link = windows_utf8_to_wide(link); |
4183 | |
4184 | SHELLEXECUTEINFOW info; |
4185 | mem_zero(&info, sizeof(SHELLEXECUTEINFOW)); |
4186 | info.cbSize = sizeof(SHELLEXECUTEINFOW); |
4187 | info.lpVerb = NULL; // NULL to use the default verb, as "open" may not be available |
4188 | info.lpFile = wide_link.c_str(); |
4189 | info.nShow = SW_SHOWNORMAL; |
4190 | // The SEE_MASK_NOASYNC flag ensures that the ShellExecuteEx function |
4191 | // finishes its DDE conversation before it returns, so it's not necessary |
4192 | // to pump messages in the calling thread. |
4193 | // The SEE_MASK_FLAG_NO_UI flag suppresses error messages that would pop up |
4194 | // when the link cannot be opened, e.g. when a folder does not exist. |
4195 | // The SEE_MASK_ASYNCOK flag is not used. It would allow the call to |
4196 | // ShellExecuteEx to return earlier, but it also prevents us from doing |
4197 | // our own error handling, as the function would always return TRUE. |
4198 | info.fMask = SEE_MASK_NOASYNC | SEE_MASK_FLAG_NO_UI; |
4199 | // Save and restore the FPU control word because ShellExecute might change it |
4200 | fenv_t floating_point_environment; |
4201 | int fegetenv_result = fegetenv(&floating_point_environment); |
4202 | BOOL success = ShellExecuteExW(&info); |
4203 | if(fegetenv_result == 0) |
4204 | fesetenv(&floating_point_environment); |
4205 | return success; |
4206 | #elif defined(CONF_PLATFORM_LINUX) |
4207 | const int pid = fork(); |
4208 | if(pid == 0) |
4209 | execlp(file: "xdg-open" , arg: "xdg-open" , link, nullptr); |
4210 | return pid > 0; |
4211 | #elif defined(CONF_FAMILY_UNIX) |
4212 | const int pid = fork(); |
4213 | if(pid == 0) |
4214 | execlp("open" , "open" , link, nullptr); |
4215 | return pid > 0; |
4216 | #endif |
4217 | } |
4218 | |
4219 | int open_file(const char *path) |
4220 | { |
4221 | #if defined(CONF_PLATFORM_MACOS) |
4222 | return open_link(path); |
4223 | #else |
4224 | // Create a file link so the path can contain forward and |
4225 | // backward slashes. But the file link must be absolute. |
4226 | char buf[512]; |
4227 | char workingDir[IO_MAX_PATH_LENGTH]; |
4228 | if(fs_is_relative_path(path)) |
4229 | { |
4230 | if(!fs_getcwd(buffer: workingDir, buffer_size: sizeof(workingDir))) |
4231 | return 0; |
4232 | str_append(dst&: workingDir, src: "/" ); |
4233 | } |
4234 | else |
4235 | workingDir[0] = '\0'; |
4236 | str_format(buffer: buf, buffer_size: sizeof(buf), format: "file://%s%s" , workingDir, path); |
4237 | return open_link(link: buf); |
4238 | #endif |
4239 | } |
4240 | #endif // !defined(CONF_PLATFORM_ANDROID) |
4241 | |
4242 | struct SECURE_RANDOM_DATA |
4243 | { |
4244 | int initialized; |
4245 | #if defined(CONF_FAMILY_WINDOWS) |
4246 | HCRYPTPROV provider; |
4247 | #else |
4248 | IOHANDLE urandom; |
4249 | #endif |
4250 | }; |
4251 | |
4252 | static struct SECURE_RANDOM_DATA secure_random_data = {.initialized: 0}; |
4253 | |
4254 | int secure_random_init() |
4255 | { |
4256 | if(secure_random_data.initialized) |
4257 | { |
4258 | return 0; |
4259 | } |
4260 | #if defined(CONF_FAMILY_WINDOWS) |
4261 | if(CryptAcquireContext(&secure_random_data.provider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) |
4262 | { |
4263 | secure_random_data.initialized = 1; |
4264 | return 0; |
4265 | } |
4266 | else |
4267 | { |
4268 | return 1; |
4269 | } |
4270 | #else |
4271 | secure_random_data.urandom = io_open(filename: "/dev/urandom" , flags: IOFLAG_READ); |
4272 | if(secure_random_data.urandom) |
4273 | { |
4274 | secure_random_data.initialized = 1; |
4275 | return 0; |
4276 | } |
4277 | else |
4278 | { |
4279 | return 1; |
4280 | } |
4281 | #endif |
4282 | } |
4283 | |
4284 | int secure_random_uninit() |
4285 | { |
4286 | if(!secure_random_data.initialized) |
4287 | { |
4288 | return 0; |
4289 | } |
4290 | #if defined(CONF_FAMILY_WINDOWS) |
4291 | if(CryptReleaseContext(secure_random_data.provider, 0)) |
4292 | { |
4293 | secure_random_data.initialized = 0; |
4294 | return 0; |
4295 | } |
4296 | else |
4297 | { |
4298 | return 1; |
4299 | } |
4300 | #else |
4301 | if(!io_close(io: secure_random_data.urandom)) |
4302 | { |
4303 | secure_random_data.initialized = 0; |
4304 | return 0; |
4305 | } |
4306 | else |
4307 | { |
4308 | return 1; |
4309 | } |
4310 | #endif |
4311 | } |
4312 | |
4313 | void generate_password(char *buffer, unsigned length, const unsigned short *random, unsigned random_length) |
4314 | { |
4315 | static const char VALUES[] = "ABCDEFGHKLMNPRSTUVWXYZabcdefghjkmnopqt23456789" ; |
4316 | static const size_t NUM_VALUES = sizeof(VALUES) - 1; // Disregard the '\0'. |
4317 | unsigned i; |
4318 | dbg_assert(length >= random_length * 2 + 1, "too small buffer" ); |
4319 | dbg_assert(NUM_VALUES * NUM_VALUES >= 2048, "need at least 2048 possibilities for 2-character sequences" ); |
4320 | |
4321 | buffer[random_length * 2] = 0; |
4322 | |
4323 | for(i = 0; i < random_length; i++) |
4324 | { |
4325 | unsigned short random_number = random[i] % 2048; |
4326 | buffer[2 * i + 0] = VALUES[random_number / NUM_VALUES]; |
4327 | buffer[2 * i + 1] = VALUES[random_number % NUM_VALUES]; |
4328 | } |
4329 | } |
4330 | |
4331 | #define MAX_PASSWORD_LENGTH 128 |
4332 | |
4333 | void secure_random_password(char *buffer, unsigned length, unsigned pw_length) |
4334 | { |
4335 | unsigned short random[MAX_PASSWORD_LENGTH / 2]; |
4336 | // With 6 characters, we get a password entropy of log(2048) * 6/2 = 33bit. |
4337 | dbg_assert(length >= pw_length + 1, "too small buffer" ); |
4338 | dbg_assert(pw_length >= 6, "too small password length" ); |
4339 | dbg_assert(pw_length % 2 == 0, "need an even password length" ); |
4340 | dbg_assert(pw_length <= MAX_PASSWORD_LENGTH, "too large password length" ); |
4341 | |
4342 | secure_random_fill(bytes: random, length: pw_length); |
4343 | |
4344 | generate_password(buffer, length, random, random_length: pw_length / 2); |
4345 | } |
4346 | |
4347 | #undef MAX_PASSWORD_LENGTH |
4348 | |
4349 | void secure_random_fill(void *bytes, unsigned length) |
4350 | { |
4351 | if(!secure_random_data.initialized) |
4352 | { |
4353 | dbg_msg(sys: "secure" , fmt: "called secure_random_fill before secure_random_init" ); |
4354 | dbg_break(); |
4355 | } |
4356 | #if defined(CONF_FAMILY_WINDOWS) |
4357 | if(!CryptGenRandom(secure_random_data.provider, length, (unsigned char *)bytes)) |
4358 | { |
4359 | const DWORD LastError = GetLastError(); |
4360 | const std::string ErrorMsg = windows_format_system_message(LastError); |
4361 | dbg_msg("secure" , "CryptGenRandom failed: %ld %s" , LastError, ErrorMsg.c_str()); |
4362 | dbg_break(); |
4363 | } |
4364 | #else |
4365 | if(length != io_read(io: secure_random_data.urandom, buffer: bytes, size: length)) |
4366 | { |
4367 | dbg_msg(sys: "secure" , fmt: "io_read returned with a short read" ); |
4368 | dbg_break(); |
4369 | } |
4370 | #endif |
4371 | } |
4372 | |
4373 | int secure_rand() |
4374 | { |
4375 | unsigned int i; |
4376 | secure_random_fill(bytes: &i, length: sizeof(i)); |
4377 | return (int)(i % RAND_MAX); |
4378 | } |
4379 | |
4380 | // From https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2. |
4381 | static unsigned int find_next_power_of_two_minus_one(unsigned int n) |
4382 | { |
4383 | n--; |
4384 | n |= n >> 1; |
4385 | n |= n >> 2; |
4386 | n |= n >> 4; |
4387 | n |= n >> 4; |
4388 | n |= n >> 16; |
4389 | return n; |
4390 | } |
4391 | |
4392 | int secure_rand_below(int below) |
4393 | { |
4394 | unsigned int mask = find_next_power_of_two_minus_one(n: below); |
4395 | dbg_assert(below > 0, "below must be positive" ); |
4396 | while(true) |
4397 | { |
4398 | unsigned int n; |
4399 | secure_random_fill(bytes: &n, length: sizeof(n)); |
4400 | n &= mask; |
4401 | if((int)n < below) |
4402 | { |
4403 | return n; |
4404 | } |
4405 | } |
4406 | } |
4407 | |
4408 | bool os_version_str(char *version, size_t length) |
4409 | { |
4410 | #if defined(CONF_FAMILY_WINDOWS) |
4411 | const WCHAR *module_path = L"kernel32.dll" ; |
4412 | DWORD handle; |
4413 | DWORD size = GetFileVersionInfoSizeW(module_path, &handle); |
4414 | if(!size) |
4415 | { |
4416 | return false; |
4417 | } |
4418 | void *data = malloc(size); |
4419 | if(!GetFileVersionInfoW(module_path, handle, size, data)) |
4420 | { |
4421 | free(data); |
4422 | return false; |
4423 | } |
4424 | VS_FIXEDFILEINFO *fileinfo; |
4425 | UINT unused; |
4426 | if(!VerQueryValueW(data, L"\\" , (void **)&fileinfo, &unused)) |
4427 | { |
4428 | free(data); |
4429 | return false; |
4430 | } |
4431 | str_format(version, length, "Windows %hu.%hu.%hu.%hu" , |
4432 | HIWORD(fileinfo->dwProductVersionMS), |
4433 | LOWORD(fileinfo->dwProductVersionMS), |
4434 | HIWORD(fileinfo->dwProductVersionLS), |
4435 | LOWORD(fileinfo->dwProductVersionLS)); |
4436 | free(data); |
4437 | return true; |
4438 | #else |
4439 | struct utsname u; |
4440 | if(uname(name: &u)) |
4441 | { |
4442 | return false; |
4443 | } |
4444 | char [128]; |
4445 | extra[0] = 0; |
4446 | |
4447 | do |
4448 | { |
4449 | IOHANDLE os_release = io_open(filename: "/etc/os-release" , flags: IOFLAG_READ); |
4450 | char buf[4096]; |
4451 | int read; |
4452 | int offset; |
4453 | char *newline; |
4454 | if(!os_release) |
4455 | { |
4456 | break; |
4457 | } |
4458 | read = io_read(io: os_release, buffer: buf, size: sizeof(buf) - 1); |
4459 | io_close(io: os_release); |
4460 | buf[read] = 0; |
4461 | if(str_startswith(str: buf, prefix: "PRETTY_NAME=" )) |
4462 | { |
4463 | offset = 0; |
4464 | } |
4465 | else |
4466 | { |
4467 | const char *found = str_find(haystack: buf, needle: "\nPRETTY_NAME=" ); |
4468 | if(!found) |
4469 | { |
4470 | break; |
4471 | } |
4472 | offset = found - buf + 1; |
4473 | } |
4474 | newline = (char *)str_find(haystack: buf + offset, needle: "\n" ); |
4475 | if(newline) |
4476 | { |
4477 | *newline = 0; |
4478 | } |
4479 | str_format(buffer: extra, buffer_size: sizeof(extra), format: "; %s" , buf + offset + 12); |
4480 | } while(false); |
4481 | |
4482 | str_format(buffer: version, buffer_size: length, format: "%s %s (%s, %s)%s" , u.sysname, u.release, u.machine, u.version, extra); |
4483 | return true; |
4484 | #endif |
4485 | } |
4486 | |
4487 | void os_locale_str(char *locale, size_t length) |
4488 | { |
4489 | #if defined(CONF_FAMILY_WINDOWS) |
4490 | wchar_t wide_buffer[LOCALE_NAME_MAX_LENGTH]; |
4491 | dbg_assert(GetUserDefaultLocaleName(wide_buffer, std::size(wide_buffer)) > 0, "GetUserDefaultLocaleName failure" ); |
4492 | |
4493 | const std::optional<std::string> buffer = windows_wide_to_utf8(wide_buffer); |
4494 | dbg_assert(buffer.has_value(), "GetUserDefaultLocaleName returned invalid UTF-16" ); |
4495 | str_copy(locale, buffer.value().c_str(), length); |
4496 | #elif defined(CONF_PLATFORM_MACOS) |
4497 | CFLocaleRef locale_ref = CFLocaleCopyCurrent(); |
4498 | CFStringRef locale_identifier_ref = static_cast<CFStringRef>(CFLocaleGetValue(locale_ref, kCFLocaleIdentifier)); |
4499 | |
4500 | // Count number of UTF16 codepoints, +1 for zero-termination. |
4501 | // Assume maximum possible length for encoding as UTF-8. |
4502 | CFIndex locale_identifier_size = (UTF8_BYTE_LENGTH * CFStringGetLength(locale_identifier_ref) + 1) * sizeof(char); |
4503 | char *locale_identifier = (char *)malloc(locale_identifier_size); |
4504 | dbg_assert(CFStringGetCString(locale_identifier_ref, locale_identifier, locale_identifier_size, kCFStringEncodingUTF8), "CFStringGetCString failure" ); |
4505 | |
4506 | str_copy(locale, locale_identifier, length); |
4507 | |
4508 | free(locale_identifier); |
4509 | CFRelease(locale_ref); |
4510 | #else |
4511 | static const char *ENV_VARIABLES[] = { |
4512 | "LC_ALL" , |
4513 | "LC_MESSAGES" , |
4514 | "LANG" , |
4515 | }; |
4516 | |
4517 | locale[0] = '\0'; |
4518 | for(const char *env_variable : ENV_VARIABLES) |
4519 | { |
4520 | const char *env_value = getenv(name: env_variable); |
4521 | if(env_value) |
4522 | { |
4523 | str_copy(dst: locale, src: env_value, dst_size: length); |
4524 | break; |
4525 | } |
4526 | } |
4527 | #endif |
4528 | |
4529 | // Ensure RFC 3066 format: |
4530 | // - use hyphens instead of underscores |
4531 | // - truncate locale string after first non-standard letter |
4532 | for(int i = 0; i < str_length(str: locale); ++i) |
4533 | { |
4534 | if(locale[i] == '_') |
4535 | { |
4536 | locale[i] = '-'; |
4537 | } |
4538 | else if(locale[i] != '-' && !(locale[i] >= 'a' && locale[i] <= 'z') && !(locale[i] >= 'A' && locale[i] <= 'Z') && !(str_isnum(c: locale[i]))) |
4539 | { |
4540 | locale[i] = '\0'; |
4541 | break; |
4542 | } |
4543 | } |
4544 | |
4545 | // Use default if we could not determine the locale, |
4546 | // i.e. if only the C or POSIX locale is available. |
4547 | if(locale[0] == '\0' || str_comp(a: locale, b: "C" ) == 0 || str_comp(a: locale, b: "POSIX" ) == 0) |
4548 | str_copy(dst: locale, src: "en-US" , dst_size: length); |
4549 | } |
4550 | |
4551 | #if defined(CONF_EXCEPTION_HANDLING) |
4552 | #if defined(CONF_FAMILY_WINDOWS) |
4553 | static HMODULE exception_handling_module = nullptr; |
4554 | #endif |
4555 | |
4556 | void init_exception_handler() |
4557 | { |
4558 | #if defined(CONF_FAMILY_WINDOWS) |
4559 | const char *module_name = "exchndl.dll" ; |
4560 | exception_handling_module = LoadLibraryA(module_name); |
4561 | if(exception_handling_module == nullptr) |
4562 | { |
4563 | const DWORD LastError = GetLastError(); |
4564 | const std::string ErrorMsg = windows_format_system_message(LastError); |
4565 | dbg_msg("exception_handling" , "failed to load exception handling library '%s' (error %ld %s)" , module_name, LastError, ErrorMsg.c_str()); |
4566 | } |
4567 | #else |
4568 | #error exception handling not implemented |
4569 | #endif |
4570 | } |
4571 | |
4572 | void set_exception_handler_log_file(const char *log_file_path) |
4573 | { |
4574 | #if defined(CONF_FAMILY_WINDOWS) |
4575 | if(exception_handling_module != nullptr) |
4576 | { |
4577 | const std::wstring wide_log_file_path = windows_utf8_to_wide(log_file_path); |
4578 | // Intentional |
4579 | #ifdef __MINGW32__ |
4580 | #pragma GCC diagnostic push |
4581 | #pragma GCC diagnostic ignored "-Wcast-function-type" |
4582 | #endif |
4583 | const char *function_name = "ExcHndlSetLogFileNameW" ; |
4584 | auto exception_log_file_path_func = (BOOL(APIENTRY *)(const WCHAR *))(GetProcAddress(exception_handling_module, function_name)); |
4585 | #ifdef __MINGW32__ |
4586 | #pragma GCC diagnostic pop |
4587 | #endif |
4588 | if(exception_log_file_path_func == nullptr) |
4589 | { |
4590 | const DWORD LastError = GetLastError(); |
4591 | const std::string ErrorMsg = windows_format_system_message(LastError); |
4592 | dbg_msg("exception_handling" , "could not find function '%s' in exception handling library (error %ld %s)" , function_name, LastError, ErrorMsg.c_str()); |
4593 | } |
4594 | else |
4595 | exception_log_file_path_func(wide_log_file_path.c_str()); |
4596 | } |
4597 | #else |
4598 | #error exception handling not implemented |
4599 | #endif |
4600 | } |
4601 | #endif |
4602 | |
4603 | std::chrono::nanoseconds time_get_nanoseconds() |
4604 | { |
4605 | return std::chrono::nanoseconds(time_get_impl()); |
4606 | } |
4607 | |
4608 | int net_socket_read_wait(NETSOCKET sock, std::chrono::nanoseconds nanoseconds) |
4609 | { |
4610 | using namespace std::chrono_literals; |
4611 | return ::net_socket_read_wait(sock, time: (nanoseconds / std::chrono::nanoseconds(1us).count()).count()); |
4612 | } |
4613 | |
4614 | #if defined(CONF_FAMILY_WINDOWS) |
4615 | std::wstring windows_utf8_to_wide(const char *str) |
4616 | { |
4617 | const int orig_length = str_length(str); |
4618 | if(orig_length == 0) |
4619 | return L"" ; |
4620 | const int size_needed = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str, orig_length, nullptr, 0); |
4621 | dbg_assert(size_needed > 0, "Invalid UTF-8 passed to windows_utf8_to_wide" ); |
4622 | std::wstring wide_string(size_needed, L'\0'); |
4623 | dbg_assert(MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str, orig_length, wide_string.data(), size_needed) == size_needed, "MultiByteToWideChar failure" ); |
4624 | return wide_string; |
4625 | } |
4626 | |
4627 | std::optional<std::string> windows_wide_to_utf8(const wchar_t *wide_str) |
4628 | { |
4629 | const int orig_length = wcslen(wide_str); |
4630 | if(orig_length == 0) |
4631 | return "" ; |
4632 | const int size_needed = WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, wide_str, orig_length, nullptr, 0, nullptr, nullptr); |
4633 | if(size_needed == 0) |
4634 | return {}; |
4635 | std::string string(size_needed, '\0'); |
4636 | dbg_assert(WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, wide_str, orig_length, string.data(), size_needed, nullptr, nullptr) == size_needed, "WideCharToMultiByte failure" ); |
4637 | return string; |
4638 | } |
4639 | |
4640 | // See https://learn.microsoft.com/en-us/windows/win32/learnwin32/initializing-the-com-library |
4641 | CWindowsComLifecycle::CWindowsComLifecycle(bool HasWindow) |
4642 | { |
4643 | HRESULT result = CoInitializeEx(NULL, (HasWindow ? COINIT_APARTMENTTHREADED : COINIT_MULTITHREADED) | COINIT_DISABLE_OLE1DDE); |
4644 | dbg_assert(result != S_FALSE, "COM library already initialized on this thread" ); |
4645 | dbg_assert(result == S_OK, "COM library initialization failed" ); |
4646 | } |
4647 | CWindowsComLifecycle::~CWindowsComLifecycle() |
4648 | { |
4649 | CoUninitialize(); |
4650 | } |
4651 | |
4652 | static void windows_print_error(const char *system, const char *prefix, HRESULT error) |
4653 | { |
4654 | const std::string message = windows_format_system_message(error); |
4655 | dbg_msg(system, "%s: %s" , prefix, message.c_str()); |
4656 | } |
4657 | |
4658 | static std::wstring filename_from_path(const std::wstring &path) |
4659 | { |
4660 | const size_t pos = path.find_last_of(L"/\\" ); |
4661 | return pos == std::wstring::npos ? path : path.substr(pos + 1); |
4662 | } |
4663 | |
4664 | bool shell_register_protocol(const char *protocol_name, const char *executable, bool *updated) |
4665 | { |
4666 | const std::wstring protocol_name_wide = windows_utf8_to_wide(protocol_name); |
4667 | const std::wstring executable_wide = windows_utf8_to_wide(executable); |
4668 | |
4669 | // Open registry key for protocol associations of the current user |
4670 | HKEY handle_subkey_classes; |
4671 | const LRESULT result_subkey_classes = RegOpenKeyExW(HKEY_CURRENT_USER, L"SOFTWARE\\Classes" , 0, KEY_ALL_ACCESS, &handle_subkey_classes); |
4672 | if(result_subkey_classes != ERROR_SUCCESS) |
4673 | { |
4674 | windows_print_error("shell_register_protocol" , "Error opening registry key" , result_subkey_classes); |
4675 | return false; |
4676 | } |
4677 | |
4678 | // Create the protocol key |
4679 | HKEY handle_subkey_protocol; |
4680 | const LRESULT result_subkey_protocol = RegCreateKeyExW(handle_subkey_classes, protocol_name_wide.c_str(), 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_protocol, NULL); |
4681 | RegCloseKey(handle_subkey_classes); |
4682 | if(result_subkey_protocol != ERROR_SUCCESS) |
4683 | { |
4684 | windows_print_error("shell_register_protocol" , "Error creating registry key" , result_subkey_protocol); |
4685 | return false; |
4686 | } |
4687 | |
4688 | // Set the default value for the key, which specifies the name of the display name of the protocol |
4689 | const std::wstring value_protocol = L"URL:" + protocol_name_wide + L" Protocol" ; |
4690 | const LRESULT result_value_protocol = RegSetValueExW(handle_subkey_protocol, L"" , 0, REG_SZ, (BYTE *)value_protocol.c_str(), (value_protocol.length() + 1) * sizeof(wchar_t)); |
4691 | if(result_value_protocol != ERROR_SUCCESS) |
4692 | { |
4693 | windows_print_error("shell_register_protocol" , "Error setting registry value" , result_value_protocol); |
4694 | RegCloseKey(handle_subkey_protocol); |
4695 | return false; |
4696 | } |
4697 | |
4698 | // Set the "URL Protocol" value, to specify that this key describes a URL protocol |
4699 | const LRESULT result_value_empty = RegSetValueEx(handle_subkey_protocol, L"URL Protocol" , 0, REG_SZ, (BYTE *)L"" , sizeof(wchar_t)); |
4700 | if(result_value_empty != ERROR_SUCCESS) |
4701 | { |
4702 | windows_print_error("shell_register_protocol" , "Error setting registry value" , result_value_empty); |
4703 | RegCloseKey(handle_subkey_protocol); |
4704 | return false; |
4705 | } |
4706 | |
4707 | // Create the "DefaultIcon" subkey |
4708 | HKEY handle_subkey_icon; |
4709 | const LRESULT result_subkey_icon = RegCreateKeyExW(handle_subkey_protocol, L"DefaultIcon" , 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_icon, NULL); |
4710 | if(result_subkey_icon != ERROR_SUCCESS) |
4711 | { |
4712 | windows_print_error("shell_register_protocol" , "Error creating registry key" , result_subkey_icon); |
4713 | RegCloseKey(handle_subkey_protocol); |
4714 | return false; |
4715 | } |
4716 | |
4717 | // Set the default value for the key, which specifies the icon associated with the protocol |
4718 | const std::wstring value_icon = L"\"" + executable_wide + L"\",0" ; |
4719 | const LRESULT result_value_icon = RegSetValueExW(handle_subkey_icon, L"" , 0, REG_SZ, (BYTE *)value_icon.c_str(), (value_icon.length() + 1) * sizeof(wchar_t)); |
4720 | RegCloseKey(handle_subkey_icon); |
4721 | if(result_value_icon != ERROR_SUCCESS) |
4722 | { |
4723 | windows_print_error("shell_register_protocol" , "Error setting registry value" , result_value_icon); |
4724 | RegCloseKey(handle_subkey_protocol); |
4725 | return false; |
4726 | } |
4727 | |
4728 | // Create the "shell\open\command" subkeys |
4729 | HKEY handle_subkey_shell_open_command; |
4730 | const LRESULT result_subkey_shell_open_command = RegCreateKeyExW(handle_subkey_protocol, L"shell\\open\\command" , 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_shell_open_command, NULL); |
4731 | RegCloseKey(handle_subkey_protocol); |
4732 | if(result_subkey_shell_open_command != ERROR_SUCCESS) |
4733 | { |
4734 | windows_print_error("shell_register_protocol" , "Error creating registry key" , result_subkey_shell_open_command); |
4735 | return false; |
4736 | } |
4737 | |
4738 | // Get the previous default value for the key, so we can determine if it changed |
4739 | wchar_t old_value_executable[MAX_PATH + 16]; |
4740 | DWORD old_size_executable = sizeof(old_value_executable); |
4741 | const LRESULT result_old_value_executable = RegGetValueW(handle_subkey_shell_open_command, NULL, L"" , RRF_RT_REG_SZ, NULL, (BYTE *)old_value_executable, &old_size_executable); |
4742 | const std::wstring value_executable = L"\"" + executable_wide + L"\" \"%1\"" ; |
4743 | if(result_old_value_executable != ERROR_SUCCESS || wcscmp(old_value_executable, value_executable.c_str()) != 0) |
4744 | { |
4745 | // Set the default value for the key, which specifies the executable command associated with the protocol |
4746 | const LRESULT result_value_executable = RegSetValueExW(handle_subkey_shell_open_command, L"" , 0, REG_SZ, (BYTE *)value_executable.c_str(), (value_executable.length() + 1) * sizeof(wchar_t)); |
4747 | RegCloseKey(handle_subkey_shell_open_command); |
4748 | if(result_value_executable != ERROR_SUCCESS) |
4749 | { |
4750 | windows_print_error("shell_register_protocol" , "Error setting registry value" , result_value_executable); |
4751 | return false; |
4752 | } |
4753 | |
4754 | *updated = true; |
4755 | } |
4756 | else |
4757 | { |
4758 | RegCloseKey(handle_subkey_shell_open_command); |
4759 | } |
4760 | |
4761 | return true; |
4762 | } |
4763 | |
4764 | bool shell_register_extension(const char *extension, const char *description, const char *executable_name, const char *executable, bool *updated) |
4765 | { |
4766 | const std::wstring extension_wide = windows_utf8_to_wide(extension); |
4767 | const std::wstring executable_name_wide = windows_utf8_to_wide(executable_name); |
4768 | const std::wstring description_wide = executable_name_wide + L" " + windows_utf8_to_wide(description); |
4769 | const std::wstring program_id_wide = executable_name_wide + extension_wide; |
4770 | const std::wstring executable_wide = windows_utf8_to_wide(executable); |
4771 | |
4772 | // Open registry key for file associations of the current user |
4773 | HKEY handle_subkey_classes; |
4774 | const LRESULT result_subkey_classes = RegOpenKeyExW(HKEY_CURRENT_USER, L"SOFTWARE\\Classes" , 0, KEY_ALL_ACCESS, &handle_subkey_classes); |
4775 | if(result_subkey_classes != ERROR_SUCCESS) |
4776 | { |
4777 | windows_print_error("shell_register_extension" , "Error opening registry key" , result_subkey_classes); |
4778 | return false; |
4779 | } |
4780 | |
4781 | // Create the program ID key |
4782 | HKEY handle_subkey_program_id; |
4783 | const LRESULT result_subkey_program_id = RegCreateKeyExW(handle_subkey_classes, program_id_wide.c_str(), 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_program_id, NULL); |
4784 | if(result_subkey_program_id != ERROR_SUCCESS) |
4785 | { |
4786 | windows_print_error("shell_register_extension" , "Error creating registry key" , result_subkey_program_id); |
4787 | RegCloseKey(handle_subkey_classes); |
4788 | return false; |
4789 | } |
4790 | |
4791 | // Set the default value for the key, which specifies the file type description for legacy applications |
4792 | const LRESULT result_description_default = RegSetValueExW(handle_subkey_program_id, L"" , 0, REG_SZ, (BYTE *)description_wide.c_str(), (description_wide.length() + 1) * sizeof(wchar_t)); |
4793 | if(result_description_default != ERROR_SUCCESS) |
4794 | { |
4795 | windows_print_error("shell_register_extension" , "Error setting registry value" , result_description_default); |
4796 | RegCloseKey(handle_subkey_program_id); |
4797 | RegCloseKey(handle_subkey_classes); |
4798 | return false; |
4799 | } |
4800 | |
4801 | // Set the "FriendlyTypeName" value, which specifies the file type description for modern applications |
4802 | const LRESULT result_description_friendly = RegSetValueExW(handle_subkey_program_id, L"FriendlyTypeName" , 0, REG_SZ, (BYTE *)description_wide.c_str(), (description_wide.length() + 1) * sizeof(wchar_t)); |
4803 | if(result_description_friendly != ERROR_SUCCESS) |
4804 | { |
4805 | windows_print_error("shell_register_extension" , "Error setting registry value" , result_description_friendly); |
4806 | RegCloseKey(handle_subkey_program_id); |
4807 | RegCloseKey(handle_subkey_classes); |
4808 | return false; |
4809 | } |
4810 | |
4811 | // Create the "DefaultIcon" subkey |
4812 | HKEY handle_subkey_icon; |
4813 | const LRESULT result_subkey_icon = RegCreateKeyExW(handle_subkey_program_id, L"DefaultIcon" , 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_icon, NULL); |
4814 | if(result_subkey_icon != ERROR_SUCCESS) |
4815 | { |
4816 | windows_print_error("register_protocol" , "Error creating registry key" , result_subkey_icon); |
4817 | RegCloseKey(handle_subkey_program_id); |
4818 | RegCloseKey(handle_subkey_classes); |
4819 | return false; |
4820 | } |
4821 | |
4822 | // Set the default value for the key, which specifies the icon associated with the program ID |
4823 | const std::wstring value_icon = L"\"" + executable_wide + L"\",0" ; |
4824 | const LRESULT result_value_icon = RegSetValueExW(handle_subkey_icon, L"" , 0, REG_SZ, (BYTE *)value_icon.c_str(), (value_icon.length() + 1) * sizeof(wchar_t)); |
4825 | RegCloseKey(handle_subkey_icon); |
4826 | if(result_value_icon != ERROR_SUCCESS) |
4827 | { |
4828 | windows_print_error("register_protocol" , "Error setting registry value" , result_value_icon); |
4829 | RegCloseKey(handle_subkey_program_id); |
4830 | RegCloseKey(handle_subkey_classes); |
4831 | return false; |
4832 | } |
4833 | |
4834 | // Create the "shell\open\command" subkeys |
4835 | HKEY handle_subkey_shell_open_command; |
4836 | const LRESULT result_subkey_shell_open_command = RegCreateKeyExW(handle_subkey_program_id, L"shell\\open\\command" , 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_shell_open_command, NULL); |
4837 | RegCloseKey(handle_subkey_program_id); |
4838 | if(result_subkey_shell_open_command != ERROR_SUCCESS) |
4839 | { |
4840 | windows_print_error("shell_register_extension" , "Error creating registry key" , result_subkey_shell_open_command); |
4841 | RegCloseKey(handle_subkey_classes); |
4842 | return false; |
4843 | } |
4844 | |
4845 | // Get the previous default value for the key, so we can determine if it changed |
4846 | wchar_t old_value_executable[MAX_PATH + 16]; |
4847 | DWORD old_size_executable = sizeof(old_value_executable); |
4848 | const LRESULT result_old_value_executable = RegGetValueW(handle_subkey_shell_open_command, NULL, L"" , RRF_RT_REG_SZ, NULL, (BYTE *)old_value_executable, &old_size_executable); |
4849 | const std::wstring value_executable = L"\"" + executable_wide + L"\" \"%1\"" ; |
4850 | if(result_old_value_executable != ERROR_SUCCESS || wcscmp(old_value_executable, value_executable.c_str()) != 0) |
4851 | { |
4852 | // Set the default value for the key, which specifies the executable command associated with the application |
4853 | const LRESULT result_value_executable = RegSetValueExW(handle_subkey_shell_open_command, L"" , 0, REG_SZ, (BYTE *)value_executable.c_str(), (value_executable.length() + 1) * sizeof(wchar_t)); |
4854 | RegCloseKey(handle_subkey_shell_open_command); |
4855 | if(result_value_executable != ERROR_SUCCESS) |
4856 | { |
4857 | windows_print_error("shell_register_extension" , "Error setting registry value" , result_value_executable); |
4858 | RegCloseKey(handle_subkey_classes); |
4859 | return false; |
4860 | } |
4861 | |
4862 | *updated = true; |
4863 | } |
4864 | |
4865 | // Create the file extension key |
4866 | HKEY handle_subkey_extension; |
4867 | const LRESULT result_subkey_extension = RegCreateKeyExW(handle_subkey_classes, extension_wide.c_str(), 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_extension, NULL); |
4868 | RegCloseKey(handle_subkey_classes); |
4869 | if(result_subkey_extension != ERROR_SUCCESS) |
4870 | { |
4871 | windows_print_error("shell_register_extension" , "Error creating registry key" , result_subkey_extension); |
4872 | return false; |
4873 | } |
4874 | |
4875 | // Get the previous default value for the key, so we can determine if it changed |
4876 | wchar_t old_value_application[128]; |
4877 | DWORD old_size_application = sizeof(old_value_application); |
4878 | const LRESULT result_old_value_application = RegGetValueW(handle_subkey_extension, NULL, L"" , RRF_RT_REG_SZ, NULL, (BYTE *)old_value_application, &old_size_application); |
4879 | if(result_old_value_application != ERROR_SUCCESS || wcscmp(old_value_application, program_id_wide.c_str()) != 0) |
4880 | { |
4881 | // Set the default value for the key, which associates the file extension with the program ID |
4882 | const LRESULT result_value_application = RegSetValueExW(handle_subkey_extension, L"" , 0, REG_SZ, (BYTE *)program_id_wide.c_str(), (program_id_wide.length() + 1) * sizeof(wchar_t)); |
4883 | RegCloseKey(handle_subkey_extension); |
4884 | if(result_value_application != ERROR_SUCCESS) |
4885 | { |
4886 | windows_print_error("shell_register_extension" , "Error setting registry value" , result_value_application); |
4887 | return false; |
4888 | } |
4889 | |
4890 | *updated = true; |
4891 | } |
4892 | else |
4893 | { |
4894 | RegCloseKey(handle_subkey_extension); |
4895 | } |
4896 | |
4897 | return true; |
4898 | } |
4899 | |
4900 | bool shell_register_application(const char *name, const char *executable, bool *updated) |
4901 | { |
4902 | const std::wstring name_wide = windows_utf8_to_wide(name); |
4903 | const std::wstring executable_filename = filename_from_path(windows_utf8_to_wide(executable)); |
4904 | |
4905 | // Open registry key for application registrations |
4906 | HKEY handle_subkey_applications; |
4907 | const LRESULT result_subkey_applications = RegOpenKeyExW(HKEY_CURRENT_USER, L"SOFTWARE\\Classes\\Applications" , 0, KEY_ALL_ACCESS, &handle_subkey_applications); |
4908 | if(result_subkey_applications != ERROR_SUCCESS) |
4909 | { |
4910 | windows_print_error("shell_register_application" , "Error opening registry key" , result_subkey_applications); |
4911 | return false; |
4912 | } |
4913 | |
4914 | // Create the program key |
4915 | HKEY handle_subkey_program; |
4916 | const LRESULT result_subkey_program = RegCreateKeyExW(handle_subkey_applications, executable_filename.c_str(), 0, NULL, 0, KEY_ALL_ACCESS, NULL, &handle_subkey_program, NULL); |
4917 | RegCloseKey(handle_subkey_applications); |
4918 | if(result_subkey_program != ERROR_SUCCESS) |
4919 | { |
4920 | windows_print_error("shell_register_application" , "Error creating registry key" , result_subkey_program); |
4921 | return false; |
4922 | } |
4923 | |
4924 | // Get the previous default value for the key, so we can determine if it changed |
4925 | wchar_t old_value_executable[MAX_PATH]; |
4926 | DWORD old_size_executable = sizeof(old_value_executable); |
4927 | const LRESULT result_old_value_executable = RegGetValueW(handle_subkey_program, NULL, L"FriendlyAppName" , RRF_RT_REG_SZ, NULL, (BYTE *)old_value_executable, &old_size_executable); |
4928 | if(result_old_value_executable != ERROR_SUCCESS || wcscmp(old_value_executable, name_wide.c_str()) != 0) |
4929 | { |
4930 | // Set the "FriendlyAppName" value, which specifies the displayed name of the application |
4931 | const LRESULT result_program_name = RegSetValueExW(handle_subkey_program, L"FriendlyAppName" , 0, REG_SZ, (BYTE *)name_wide.c_str(), (name_wide.length() + 1) * sizeof(wchar_t)); |
4932 | RegCloseKey(handle_subkey_program); |
4933 | if(result_program_name != ERROR_SUCCESS) |
4934 | { |
4935 | windows_print_error("shell_register_application" , "Error setting registry value" , result_program_name); |
4936 | return false; |
4937 | } |
4938 | |
4939 | *updated = true; |
4940 | } |
4941 | else |
4942 | { |
4943 | RegCloseKey(handle_subkey_program); |
4944 | } |
4945 | |
4946 | return true; |
4947 | } |
4948 | |
4949 | bool shell_unregister_class(const char *shell_class, bool *updated) |
4950 | { |
4951 | const std::wstring class_wide = windows_utf8_to_wide(shell_class); |
4952 | |
4953 | // Open registry key for protocol and file associations of the current user |
4954 | HKEY handle_subkey_classes; |
4955 | const LRESULT result_subkey_classes = RegOpenKeyExW(HKEY_CURRENT_USER, L"SOFTWARE\\Classes" , 0, KEY_ALL_ACCESS, &handle_subkey_classes); |
4956 | if(result_subkey_classes != ERROR_SUCCESS) |
4957 | { |
4958 | windows_print_error("shell_unregister_class" , "Error opening registry key" , result_subkey_classes); |
4959 | return false; |
4960 | } |
4961 | |
4962 | // Delete the registry keys for the shell class (protocol or program ID) |
4963 | LRESULT result_delete = RegDeleteTreeW(handle_subkey_classes, class_wide.c_str()); |
4964 | RegCloseKey(handle_subkey_classes); |
4965 | if(result_delete == ERROR_SUCCESS) |
4966 | { |
4967 | *updated = true; |
4968 | } |
4969 | else if(result_delete != ERROR_FILE_NOT_FOUND) |
4970 | { |
4971 | windows_print_error("shell_unregister_class" , "Error deleting registry key" , result_delete); |
4972 | return false; |
4973 | } |
4974 | |
4975 | return true; |
4976 | } |
4977 | |
4978 | bool shell_unregister_application(const char *executable, bool *updated) |
4979 | { |
4980 | const std::wstring executable_filename = filename_from_path(windows_utf8_to_wide(executable)); |
4981 | |
4982 | // Open registry key for application registrations |
4983 | HKEY handle_subkey_applications; |
4984 | const LRESULT result_subkey_applications = RegOpenKeyExW(HKEY_CURRENT_USER, L"SOFTWARE\\Classes\\Applications" , 0, KEY_ALL_ACCESS, &handle_subkey_applications); |
4985 | if(result_subkey_applications != ERROR_SUCCESS) |
4986 | { |
4987 | windows_print_error("shell_unregister_application" , "Error opening registry key" , result_subkey_applications); |
4988 | return false; |
4989 | } |
4990 | |
4991 | // Delete the registry keys for the application description |
4992 | LRESULT result_delete = RegDeleteTreeW(handle_subkey_applications, executable_filename.c_str()); |
4993 | RegCloseKey(handle_subkey_applications); |
4994 | if(result_delete == ERROR_SUCCESS) |
4995 | { |
4996 | *updated = true; |
4997 | } |
4998 | else if(result_delete != ERROR_FILE_NOT_FOUND) |
4999 | { |
5000 | windows_print_error("shell_unregister_application" , "Error deleting registry key" , result_delete); |
5001 | return false; |
5002 | } |
5003 | |
5004 | return true; |
5005 | } |
5006 | |
5007 | void shell_update() |
5008 | { |
5009 | SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL); |
5010 | } |
5011 | #endif |
5012 | |
5013 | size_t std::hash<NETADDR>::operator()(const NETADDR &Addr) const noexcept |
5014 | { |
5015 | return std::hash<std::string_view>{}(std::string_view((const char *)&Addr, sizeof(Addr))); |
5016 | } |
5017 | |