compat/terminal: support echoing on windows
[git/dscho.git] / compat / mingw.c
blobecbfa6e597e4c4f2bd7a9313dc424968c42843fc
1 #include "../git-compat-util.h"
2 #include "win32.h"
3 #include <conio.h>
4 #include <wchar.h>
5 #include "../strbuf.h"
6 #include "../run-command.h"
7 #include "../cache.h"
9 static const int delay[] = { 0, 1, 10, 20, 40 };
10 unsigned int _CRT_fmode = _O_BINARY;
12 int err_win_to_posix(DWORD winerr)
14 int error = ENOSYS;
15 switch(winerr) {
16 case ERROR_ACCESS_DENIED: error = EACCES; break;
17 case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
18 case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
19 case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
20 case ERROR_ALREADY_EXISTS: error = EEXIST; break;
21 case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
22 case ERROR_BAD_COMMAND: error = EIO; break;
23 case ERROR_BAD_DEVICE: error = ENODEV; break;
24 case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
25 case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
26 case ERROR_BAD_FORMAT: error = ENOEXEC; break;
27 case ERROR_BAD_LENGTH: error = EINVAL; break;
28 case ERROR_BAD_PATHNAME: error = ENOENT; break;
29 case ERROR_BAD_PIPE: error = EPIPE; break;
30 case ERROR_BAD_UNIT: error = ENODEV; break;
31 case ERROR_BAD_USERNAME: error = EINVAL; break;
32 case ERROR_BROKEN_PIPE: error = EPIPE; break;
33 case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
34 case ERROR_BUSY: error = EBUSY; break;
35 case ERROR_BUSY_DRIVE: error = EBUSY; break;
36 case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
37 case ERROR_CANNOT_MAKE: error = EACCES; break;
38 case ERROR_CANTOPEN: error = EIO; break;
39 case ERROR_CANTREAD: error = EIO; break;
40 case ERROR_CANTWRITE: error = EIO; break;
41 case ERROR_CRC: error = EIO; break;
42 case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
43 case ERROR_DEVICE_IN_USE: error = EBUSY; break;
44 case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
45 case ERROR_DIRECTORY: error = EINVAL; break;
46 case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
47 case ERROR_DISK_CHANGE: error = EIO; break;
48 case ERROR_DISK_FULL: error = ENOSPC; break;
49 case ERROR_DRIVE_LOCKED: error = EBUSY; break;
50 case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
51 case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
52 case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
53 case ERROR_FILE_EXISTS: error = EEXIST; break;
54 case ERROR_FILE_INVALID: error = ENODEV; break;
55 case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
56 case ERROR_GEN_FAILURE: error = EIO; break;
57 case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
58 case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
59 case ERROR_INVALID_ACCESS: error = EACCES; break;
60 case ERROR_INVALID_ADDRESS: error = EFAULT; break;
61 case ERROR_INVALID_BLOCK: error = EFAULT; break;
62 case ERROR_INVALID_DATA: error = EINVAL; break;
63 case ERROR_INVALID_DRIVE: error = ENODEV; break;
64 case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
65 case ERROR_INVALID_FLAGS: error = EINVAL; break;
66 case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
67 case ERROR_INVALID_HANDLE: error = EBADF; break;
68 case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
69 case ERROR_INVALID_NAME: error = EINVAL; break;
70 case ERROR_INVALID_OWNER: error = EINVAL; break;
71 case ERROR_INVALID_PARAMETER: error = EINVAL; break;
72 case ERROR_INVALID_PASSWORD: error = EPERM; break;
73 case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
74 case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
75 case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
76 case ERROR_INVALID_WORKSTATION: error = EACCES; break;
77 case ERROR_IO_DEVICE: error = EIO; break;
78 case ERROR_IO_INCOMPLETE: error = EINTR; break;
79 case ERROR_LOCKED: error = EBUSY; break;
80 case ERROR_LOCK_VIOLATION: error = EACCES; break;
81 case ERROR_LOGON_FAILURE: error = EACCES; break;
82 case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
83 case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
84 case ERROR_MORE_DATA: error = EPIPE; break;
85 case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
86 case ERROR_NOACCESS: error = EFAULT; break;
87 case ERROR_NONE_MAPPED: error = EINVAL; break;
88 case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
89 case ERROR_NOT_READY: error = EAGAIN; break;
90 case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
91 case ERROR_NO_DATA: error = EPIPE; break;
92 case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
93 case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
94 case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
95 case ERROR_OPEN_FAILED: error = EIO; break;
96 case ERROR_OPEN_FILES: error = EBUSY; break;
97 case ERROR_OPERATION_ABORTED: error = EINTR; break;
98 case ERROR_OUTOFMEMORY: error = ENOMEM; break;
99 case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
100 case ERROR_PATH_BUSY: error = EBUSY; break;
101 case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
102 case ERROR_PIPE_BUSY: error = EBUSY; break;
103 case ERROR_PIPE_CONNECTED: error = EPIPE; break;
104 case ERROR_PIPE_LISTENING: error = EPIPE; break;
105 case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
106 case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
107 case ERROR_READ_FAULT: error = EIO; break;
108 case ERROR_SEEK: error = EIO; break;
109 case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
110 case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
111 case ERROR_SHARING_VIOLATION: error = EACCES; break;
112 case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
113 case ERROR_SWAPERROR: error = ENOENT; break;
114 case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
115 case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
116 case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
117 case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
118 case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
119 case ERROR_WRITE_FAULT: error = EIO; break;
120 case ERROR_WRITE_PROTECT: error = EROFS; break;
122 return error;
125 static inline int is_file_in_use_error(DWORD errcode)
127 switch (errcode) {
128 case ERROR_SHARING_VIOLATION:
129 case ERROR_ACCESS_DENIED:
130 return 1;
133 return 0;
136 static int read_yes_no_answer(void)
138 char answer[1024];
140 if (fgets(answer, sizeof(answer), stdin)) {
141 size_t answer_len = strlen(answer);
142 int got_full_line = 0, c;
144 /* remove the newline */
145 if (answer_len >= 2 && answer[answer_len-2] == '\r') {
146 answer[answer_len-2] = '\0';
147 got_full_line = 1;
148 } else if (answer_len >= 1 && answer[answer_len-1] == '\n') {
149 answer[answer_len-1] = '\0';
150 got_full_line = 1;
152 /* flush the buffer in case we did not get the full line */
153 if (!got_full_line)
154 while ((c = getchar()) != EOF && c != '\n')
156 } else
157 /* we could not read, return the
158 * default answer which is no */
159 return 0;
161 if (tolower(answer[0]) == 'y' && !answer[1])
162 return 1;
163 if (!strncasecmp(answer, "yes", sizeof(answer)))
164 return 1;
165 if (tolower(answer[0]) == 'n' && !answer[1])
166 return 0;
167 if (!strncasecmp(answer, "no", sizeof(answer)))
168 return 0;
170 /* did not find an answer we understand */
171 return -1;
174 static int ask_yes_no_if_possible(const char *format, ...)
176 char question[4096];
177 const char *retry_hook[] = { NULL, NULL, NULL };
178 va_list args;
180 va_start(args, format);
181 vsnprintf(question, sizeof(question), format, args);
182 va_end(args);
184 if ((retry_hook[0] = getenv("GIT_ASK_YESNO"))) {
185 retry_hook[1] = question;
186 return !run_command_v_opt(retry_hook, 0);
189 if (!isatty(_fileno(stdin)) || !isatty(_fileno(stderr)))
190 return 0;
192 while (1) {
193 int answer;
194 fprintf(stderr, "%s (y/n) ", question);
196 if ((answer = read_yes_no_answer()) >= 0)
197 return answer;
199 fprintf(stderr, "Sorry, I did not understand your answer. "
200 "Please type 'y' or 'n'\n");
204 int mingw_unlink(const char *pathname)
206 int ret, tries = 0;
207 wchar_t wpathname[MAX_PATH];
208 if (xutftowcs_path(wpathname, pathname) < 0)
209 return -1;
211 /* read-only files cannot be removed */
212 _wchmod(wpathname, 0666);
213 while ((ret = _wunlink(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
214 if (!is_file_in_use_error(GetLastError()))
215 break;
217 * We assume that some other process had the source or
218 * destination file open at the wrong moment and retry.
219 * In order to give the other process a higher chance to
220 * complete its operation, we give up our time slice now.
221 * If we have to retry again, we do sleep a bit.
223 Sleep(delay[tries]);
224 tries++;
226 while (ret == -1 && is_file_in_use_error(GetLastError()) &&
227 ask_yes_no_if_possible("Unlink of file '%s' failed. "
228 "Should I try again?", pathname))
229 ret = _wunlink(wpathname);
230 return ret;
233 static int is_dir_empty(const wchar_t *wpath)
235 WIN32_FIND_DATAW findbuf;
236 HANDLE handle;
237 wchar_t wbuf[MAX_PATH + 2];
238 wcscpy(wbuf, wpath);
239 wcscat(wbuf, L"\\*");
240 handle = FindFirstFileW(wbuf, &findbuf);
241 if (handle == INVALID_HANDLE_VALUE)
242 return GetLastError() == ERROR_NO_MORE_FILES;
244 while (!wcscmp(findbuf.cFileName, L".") ||
245 !wcscmp(findbuf.cFileName, L".."))
246 if (!FindNextFileW(handle, &findbuf)) {
247 DWORD err = GetLastError();
248 FindClose(handle);
249 return err == ERROR_NO_MORE_FILES;
251 FindClose(handle);
252 return 0;
255 int mingw_rmdir(const char *pathname)
257 int ret, tries = 0;
258 wchar_t wpathname[MAX_PATH];
259 if (xutftowcs_path(wpathname, pathname) < 0)
260 return -1;
262 while ((ret = _wrmdir(wpathname)) == -1 && tries < ARRAY_SIZE(delay)) {
263 if (!is_file_in_use_error(GetLastError()))
264 break;
265 if (!is_dir_empty(wpathname)) {
266 errno = ENOTEMPTY;
267 break;
270 * We assume that some other process had the source or
271 * destination file open at the wrong moment and retry.
272 * In order to give the other process a higher chance to
273 * complete its operation, we give up our time slice now.
274 * If we have to retry again, we do sleep a bit.
276 Sleep(delay[tries]);
277 tries++;
279 while (ret == -1 && is_file_in_use_error(GetLastError()) &&
280 ask_yes_no_if_possible("Deletion of directory '%s' failed. "
281 "Should I try again?", pathname))
282 ret = _wrmdir(wpathname);
283 return ret;
286 static int make_hidden(const wchar_t *path)
288 DWORD attribs = GetFileAttributesW(path);
289 if (SetFileAttributesW(path, FILE_ATTRIBUTE_HIDDEN | attribs))
290 return 0;
291 errno = err_win_to_posix(GetLastError());
292 return -1;
295 void mingw_mark_as_git_dir(const char *dir)
297 wchar_t wdir[MAX_PATH];
298 if (hide_dotfiles != HIDE_DOTFILES_FALSE && !is_bare_repository())
299 if (xutftowcs_path(wdir, dir) < 0 || make_hidden(wdir))
300 warning("Failed to make '%s' hidden", dir);
301 git_config_set("core.hideDotFiles",
302 hide_dotfiles == HIDE_DOTFILES_FALSE ? "false" :
303 (hide_dotfiles == HIDE_DOTFILES_DOTGITONLY ?
304 "dotGitOnly" : "true"));
307 int mingw_mkdir(const char *path, int mode)
309 int ret;
310 wchar_t wpath[MAX_PATH];
311 if (xutftowcs_path(wpath, path) < 0)
312 return -1;
313 ret = _wmkdir(wpath);
314 if (!ret && hide_dotfiles == HIDE_DOTFILES_TRUE) {
316 * In Windows a file or dir starting with a dot is not
317 * automatically hidden. So lets mark it as hidden when
318 * such a directory is created.
320 const char *start = basename((char*)path);
321 if (*start == '.')
322 return make_hidden(wpath);
324 return ret;
327 int mingw_open (const char *filename, int oflags, ...)
329 va_list args;
330 unsigned mode;
331 int fd;
332 wchar_t wfilename[MAX_PATH];
334 va_start(args, oflags);
335 mode = va_arg(args, int);
336 va_end(args);
338 if (filename && !strcmp(filename, "/dev/null"))
339 filename = "nul";
341 if (xutftowcs_path(wfilename, filename) < 0)
342 return -1;
343 fd = _wopen(wfilename, oflags, mode);
345 if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
346 DWORD attrs = GetFileAttributesW(wfilename);
347 if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
348 errno = EISDIR;
350 if ((oflags & O_CREAT) && fd >= 0 &&
351 hide_dotfiles == HIDE_DOTFILES_TRUE) {
353 * In Windows a file or dir starting with a dot is not
354 * automatically hidden. So lets mark it as hidden when
355 * such a file is created.
357 const char *start = basename((char*)filename);
358 if (*start == '.' && make_hidden(wfilename))
359 warning("Could not mark '%s' as hidden.", filename);
361 return fd;
364 #undef write
365 ssize_t mingw_write(int fd, const void *buf, size_t count)
368 * While write() calls to a file on a local disk are translated
369 * into WriteFile() calls with a maximum size of 64KB on Windows
370 * XP and 256KB on Vista, no such cap is placed on writes to
371 * files over the network on Windows XP. Unfortunately, there
372 * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
373 * bigger writes fail on Windows XP.
374 * So we cap to a nice 31MB here to avoid write failures over
375 * the net without changing the number of WriteFile() calls in
376 * the local case.
378 return write(fd, buf, min(count, 31 * 1024 * 1024));
381 FILE *mingw_fopen (const char *filename, const char *otype)
383 int hide = 0;
384 FILE *file;
385 wchar_t wfilename[MAX_PATH], wotype[4];
386 if (hide_dotfiles == HIDE_DOTFILES_TRUE &&
387 basename((char*)filename)[0] == '.')
388 hide = access(filename, F_OK);
389 if (filename && !strcmp(filename, "/dev/null"))
390 filename = "nul";
391 if (xutftowcs_path(wfilename, filename) < 0 ||
392 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
393 return NULL;
394 file = _wfopen(wfilename, wotype);
395 if (file && hide && make_hidden(wfilename))
396 warning("Could not mark '%s' as hidden.", filename);
397 return file;
400 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
402 int hide = 0;
403 FILE *file;
404 wchar_t wfilename[MAX_PATH], wotype[4];
405 if (hide_dotfiles == HIDE_DOTFILES_TRUE &&
406 basename((char*)filename)[0] == '.')
407 hide = access(filename, F_OK);
408 if (filename && !strcmp(filename, "/dev/null"))
409 filename = "nul";
410 if (xutftowcs_path(wfilename, filename) < 0 ||
411 xutftowcs(wotype, otype, ARRAY_SIZE(wotype)) < 0)
412 return NULL;
413 file = _wfreopen(wfilename, wotype, stream);
414 if (file && hide && make_hidden(wfilename))
415 warning("Could not mark '%s' as hidden.", filename);
416 return file;
419 int mingw_access(const char *filename, int mode)
421 wchar_t wfilename[MAX_PATH];
422 if (xutftowcs_path(wfilename, filename) < 0)
423 return -1;
424 /* X_OK is not supported by the MSVCRT version */
425 return _waccess(wfilename, mode & ~X_OK);
428 int mingw_chdir(const char *dirname)
430 wchar_t wdirname[MAX_PATH];
431 if (xutftowcs_path(wdirname, dirname) < 0)
432 return -1;
433 return _wchdir(wdirname);
436 int mingw_chmod(const char *filename, int mode)
438 wchar_t wfilename[MAX_PATH];
439 if (xutftowcs_path(wfilename, filename) < 0)
440 return -1;
441 return _wchmod(wfilename, mode);
445 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
446 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
448 static inline long long filetime_to_hnsec(const FILETIME *ft)
450 long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
451 /* Windows to Unix Epoch conversion */
452 return winTime - 116444736000000000LL;
455 static inline time_t filetime_to_time_t(const FILETIME *ft)
457 return (time_t)(filetime_to_hnsec(ft) / 10000000);
460 /* We keep the do_lstat code in a separate function to avoid recursion.
461 * When a path ends with a slash, the stat will fail with ENOENT. In
462 * this case, we strip the trailing slashes and stat again.
464 * If follow is true then act like stat() and report on the link
465 * target. Otherwise report on the link itself.
467 static int do_lstat(int follow, const char *file_name, struct stat *buf)
469 WIN32_FILE_ATTRIBUTE_DATA fdata;
470 wchar_t wfilename[MAX_PATH];
471 if (xutftowcs_path(wfilename, file_name) < 0)
472 return -1;
474 if (GetFileAttributesExW(wfilename, GetFileExInfoStandard, &fdata)) {
475 buf->st_ino = 0;
476 buf->st_gid = 0;
477 buf->st_uid = 0;
478 buf->st_nlink = 1;
479 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
480 buf->st_size = fdata.nFileSizeLow |
481 (((off_t)fdata.nFileSizeHigh)<<32);
482 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
483 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
484 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
485 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
486 if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
487 WIN32_FIND_DATAW findbuf;
488 HANDLE handle = FindFirstFileW(wfilename, &findbuf);
489 if (handle != INVALID_HANDLE_VALUE) {
490 if ((findbuf.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) &&
491 (findbuf.dwReserved0 == IO_REPARSE_TAG_SYMLINK)) {
492 if (follow) {
493 char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
494 buf->st_size = readlink(file_name, buffer, MAXIMUM_REPARSE_DATA_BUFFER_SIZE);
495 } else {
496 buf->st_mode = S_IFLNK;
498 buf->st_mode |= S_IREAD;
499 if (!(findbuf.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
500 buf->st_mode |= S_IWRITE;
502 FindClose(handle);
505 return 0;
507 switch (GetLastError()) {
508 case ERROR_ACCESS_DENIED:
509 case ERROR_SHARING_VIOLATION:
510 case ERROR_LOCK_VIOLATION:
511 case ERROR_SHARING_BUFFER_EXCEEDED:
512 errno = EACCES;
513 break;
514 case ERROR_BUFFER_OVERFLOW:
515 errno = ENAMETOOLONG;
516 break;
517 case ERROR_NOT_ENOUGH_MEMORY:
518 errno = ENOMEM;
519 break;
520 default:
521 errno = ENOENT;
522 break;
524 return -1;
527 /* We provide our own lstat/fstat functions, since the provided
528 * lstat/fstat functions are so slow. These stat functions are
529 * tailored for Git's usage (read: fast), and are not meant to be
530 * complete. Note that Git stat()s are redirected to mingw_lstat()
531 * too, since Windows doesn't really handle symlinks that well.
533 static int do_stat_internal(int follow, const char *file_name, struct stat *buf)
535 int namelen;
536 char alt_name[PATH_MAX];
538 if (!do_lstat(follow, file_name, buf))
539 return 0;
541 /* if file_name ended in a '/', Windows returned ENOENT;
542 * try again without trailing slashes
544 if (errno != ENOENT)
545 return -1;
547 namelen = strlen(file_name);
548 if (namelen && file_name[namelen-1] != '/')
549 return -1;
550 while (namelen && file_name[namelen-1] == '/')
551 --namelen;
552 if (!namelen || namelen >= PATH_MAX)
553 return -1;
555 memcpy(alt_name, file_name, namelen);
556 alt_name[namelen] = 0;
557 return do_lstat(follow, alt_name, buf);
560 int mingw_lstat(const char *file_name, struct stat *buf)
562 return do_stat_internal(0, file_name, buf);
564 int mingw_stat(const char *file_name, struct stat *buf)
566 return do_stat_internal(1, file_name, buf);
569 #undef fstat
570 int mingw_fstat(int fd, struct stat *buf)
572 HANDLE fh = (HANDLE)_get_osfhandle(fd);
573 BY_HANDLE_FILE_INFORMATION fdata;
575 if (fh == INVALID_HANDLE_VALUE) {
576 errno = EBADF;
577 return -1;
579 /* direct non-file handles to MS's fstat() */
580 if (GetFileType(fh) != FILE_TYPE_DISK)
581 return _fstati64(fd, buf);
583 if (GetFileInformationByHandle(fh, &fdata)) {
584 buf->st_ino = 0;
585 buf->st_gid = 0;
586 buf->st_uid = 0;
587 buf->st_nlink = 1;
588 buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
589 buf->st_size = fdata.nFileSizeLow |
590 (((off_t)fdata.nFileSizeHigh)<<32);
591 buf->st_dev = buf->st_rdev = 0; /* not used by Git */
592 buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
593 buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
594 buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
595 return 0;
597 errno = EBADF;
598 return -1;
601 static inline void time_t_to_filetime(time_t t, FILETIME *ft)
603 long long winTime = t * 10000000LL + 116444736000000000LL;
604 ft->dwLowDateTime = winTime;
605 ft->dwHighDateTime = winTime >> 32;
608 int mingw_utime (const char *file_name, const struct utimbuf *times)
610 FILETIME mft, aft;
611 int fh, rc;
612 DWORD attrs;
613 wchar_t wfilename[MAX_PATH];
614 if (xutftowcs_path(wfilename, file_name) < 0)
615 return -1;
617 /* must have write permission */
618 attrs = GetFileAttributesW(wfilename);
619 if (attrs != INVALID_FILE_ATTRIBUTES &&
620 (attrs & FILE_ATTRIBUTE_READONLY)) {
621 /* ignore errors here; open() will report them */
622 SetFileAttributesW(wfilename, attrs & ~FILE_ATTRIBUTE_READONLY);
625 if ((fh = _wopen(wfilename, O_RDWR | O_BINARY)) < 0) {
626 rc = -1;
627 goto revert_attrs;
630 if (times) {
631 time_t_to_filetime(times->modtime, &mft);
632 time_t_to_filetime(times->actime, &aft);
633 } else {
634 GetSystemTimeAsFileTime(&mft);
635 aft = mft;
637 if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
638 errno = EINVAL;
639 rc = -1;
640 } else
641 rc = 0;
642 close(fh);
644 revert_attrs:
645 if (attrs != INVALID_FILE_ATTRIBUTES &&
646 (attrs & FILE_ATTRIBUTE_READONLY)) {
647 /* ignore errors again */
648 SetFileAttributesW(wfilename, attrs);
650 return rc;
653 unsigned int sleep (unsigned int seconds)
655 Sleep(seconds*1000);
656 return 0;
659 char *mingw_mktemp(char *template)
661 wchar_t wtemplate[MAX_PATH];
662 if (xutftowcs_path(wtemplate, template) < 0)
663 return NULL;
664 if (!_wmktemp(wtemplate))
665 return NULL;
666 if (xwcstoutf(template, wtemplate, strlen(template) + 1) < 0)
667 return NULL;
668 return template;
671 int mkstemp(char *template)
673 char *filename = mktemp(template);
674 if (filename == NULL)
675 return -1;
676 return open(filename, O_RDWR | O_CREAT, 0600);
679 int gettimeofday(struct timeval *tv, void *tz)
681 FILETIME ft;
682 long long hnsec;
684 GetSystemTimeAsFileTime(&ft);
685 hnsec = filetime_to_hnsec(&ft);
686 tv->tv_sec = hnsec / 10000000;
687 tv->tv_usec = (hnsec % 10000000) / 10;
688 return 0;
691 int pipe(int filedes[2])
693 HANDLE h[2];
695 /* this creates non-inheritable handles */
696 if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
697 errno = err_win_to_posix(GetLastError());
698 return -1;
700 filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
701 if (filedes[0] < 0) {
702 CloseHandle(h[0]);
703 CloseHandle(h[1]);
704 return -1;
706 filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
707 if (filedes[0] < 0) {
708 close(filedes[0]);
709 CloseHandle(h[1]);
710 return -1;
712 return 0;
715 struct tm *gmtime_r(const time_t *timep, struct tm *result)
717 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
718 memcpy(result, gmtime(timep), sizeof(struct tm));
719 return result;
722 struct tm *localtime_r(const time_t *timep, struct tm *result)
724 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
725 memcpy(result, localtime(timep), sizeof(struct tm));
726 return result;
729 char *mingw_getcwd(char *pointer, int len)
731 int i;
732 wchar_t wpointer[MAX_PATH];
733 if (!_wgetcwd(wpointer, ARRAY_SIZE(wpointer)))
734 return NULL;
735 if (xwcstoutf(pointer, wpointer, len) < 0)
736 return NULL;
737 for (i = 0; pointer[i]; i++)
738 if (pointer[i] == '\\')
739 pointer[i] = '/';
740 return pointer;
744 * Compare environment entries by key (i.e. stopping at '=' or '\0').
746 static int compareenv(const void *v1, const void *v2)
748 const char *e1 = *(const char**)v1;
749 const char *e2 = *(const char**)v2;
751 for (;;) {
752 int c1 = *e1++;
753 int c2 = *e2++;
754 c1 = (c1 == '=') ? 0 : tolower(c1);
755 c2 = (c2 == '=') ? 0 : tolower(c2);
756 if (c1 > c2)
757 return 1;
758 if (c1 < c2)
759 return -1;
760 if (c1 == 0)
761 return 0;
765 static int bsearchenv(char **env, const char *name, size_t size)
767 unsigned low = 0, high = size;
768 while (low < high) {
769 unsigned mid = low + ((high - low) >> 1);
770 int cmp = compareenv(&env[mid], &name);
771 if (cmp < 0)
772 low = mid + 1;
773 else if (cmp > 0)
774 high = mid;
775 else
776 return mid;
778 return ~low; /* not found, return 1's complement of insert position */
782 * If name contains '=', then sets the variable, otherwise it unsets it
783 * Size includes the terminating NULL. Env must have room for size + 1 entries
784 * (in case of insert). Returns the new size. Optionally frees removed entries.
786 static int do_putenv(char **env, const char *name, int size, int free_old)
788 int i = bsearchenv(env, name, size - 1);
790 /* optionally free removed / replaced entry */
791 if (i >= 0 && free_old)
792 free(env[i]);
794 if (strchr(name, '=')) {
795 /* if new value ('key=value') is specified, insert or replace entry */
796 if (i < 0) {
797 i = ~i;
798 memmove(&env[i + 1], &env[i], (size - i) * sizeof(char*));
799 size++;
801 env[i] = (char*) name;
802 } else if (i >= 0) {
803 /* otherwise ('key') remove existing entry */
804 size--;
805 memmove(&env[i], &env[i + 1], (size - i) * sizeof(char*));
807 return size;
810 /* used number of elements of environ array, including terminating NULL */
811 static int environ_size = 0;
812 /* allocated size of environ array, in bytes */
813 static int environ_alloc = 0;
815 char *mingw_getenv(const char *name)
817 char *value;
818 int pos = bsearchenv(environ, name, environ_size - 1);
819 if (pos < 0)
820 return NULL;
821 value = strchr(environ[pos], '=');
822 return value ? &value[1] : NULL;
825 int mingw_putenv(const char *namevalue)
827 ALLOC_GROW(environ, (environ_size + 1) * sizeof(char*), environ_alloc);
828 environ_size = do_putenv(environ, namevalue, environ_size, 1);
829 return 0;
833 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
834 * (Parsing C++ Command-Line Arguments)
836 static const char *quote_arg(const char *arg)
838 /* count chars to quote */
839 int len = 0, n = 0;
840 int force_quotes = 0;
841 char *q, *d;
842 const char *p = arg;
843 if (!*p) force_quotes = 1;
844 while (*p) {
845 if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
846 force_quotes = 1;
847 else if (*p == '"')
848 n++;
849 else if (*p == '\\') {
850 int count = 0;
851 while (*p == '\\') {
852 count++;
853 p++;
854 len++;
856 if (*p == '"')
857 n += count*2 + 1;
858 continue;
860 len++;
861 p++;
863 if (!force_quotes && n == 0)
864 return arg;
866 /* insert \ where necessary */
867 d = q = xmalloc(len+n+3);
868 *d++ = '"';
869 while (*arg) {
870 if (*arg == '"')
871 *d++ = '\\';
872 else if (*arg == '\\') {
873 int count = 0;
874 while (*arg == '\\') {
875 count++;
876 *d++ = *arg++;
878 if (*arg == '"') {
879 while (count-- > 0)
880 *d++ = '\\';
881 *d++ = '\\';
884 *d++ = *arg++;
886 *d++ = '"';
887 *d++ = 0;
888 return q;
891 static const char *parse_interpreter(const char *cmd)
893 static char buf[100];
894 char *p, *opt;
895 int n, fd;
897 /* don't even try a .exe */
898 n = strlen(cmd);
899 if (n >= 4 && !strcasecmp(cmd+n-4, ".exe"))
900 return NULL;
902 fd = open(cmd, O_RDONLY);
903 if (fd < 0)
904 return NULL;
905 n = read(fd, buf, sizeof(buf)-1);
906 close(fd);
907 if (n < 4) /* at least '#!/x' and not error */
908 return NULL;
910 if (buf[0] != '#' || buf[1] != '!')
911 return NULL;
912 buf[n] = '\0';
913 p = buf + strcspn(buf, "\r\n");
914 if (!*p)
915 return NULL;
917 *p = '\0';
918 if (!(p = strrchr(buf+2, '/')) && !(p = strrchr(buf+2, '\\')))
919 return NULL;
920 /* strip options */
921 if ((opt = strchr(p+1, ' ')))
922 *opt = '\0';
923 return p+1;
927 * Splits the PATH into parts.
929 static char **get_path_split(void)
931 char *p, **path, *envpath = getenv("PATH");
932 int i, n = 0;
934 if (!envpath || !*envpath)
935 return NULL;
937 envpath = xstrdup(envpath);
938 p = envpath;
939 while (p) {
940 char *dir = p;
941 p = strchr(p, ';');
942 if (p) *p++ = '\0';
943 if (*dir) { /* not earlier, catches series of ; */
944 ++n;
947 if (!n)
948 return NULL;
950 path = xmalloc((n+1)*sizeof(char *));
951 p = envpath;
952 i = 0;
953 do {
954 if (*p)
955 path[i++] = xstrdup(p);
956 p = p+strlen(p)+1;
957 } while (i < n);
958 path[i] = NULL;
960 free(envpath);
962 return path;
965 static void free_path_split(char **path)
967 char **p = path;
969 if (!path)
970 return;
972 while (*p)
973 free(*p++);
974 free(path);
978 * exe_only means that we only want to detect .exe files, but not scripts
979 * (which do not have an extension)
981 static char *lookup_prog(const char *dir, const char *cmd, int isexe, int exe_only)
983 char path[MAX_PATH];
984 wchar_t wpath[MAX_PATH];
985 snprintf(path, sizeof(path), "%s\\%s.exe", dir, cmd);
987 if (xutftowcs_path(wpath, path) < 0)
988 return NULL;
990 if (!isexe && _waccess(wpath, F_OK) == 0)
991 return xstrdup(path);
992 wpath[wcslen(wpath)-4] = '\0';
993 if ((!exe_only || isexe) && _waccess(wpath, F_OK) == 0) {
994 if (!(GetFileAttributesW(wpath) & FILE_ATTRIBUTE_DIRECTORY)) {
995 path[strlen(path)-4] = '\0';
996 return xstrdup(path);
999 return NULL;
1003 * Determines the absolute path of cmd using the split path in path.
1004 * If cmd contains a slash or backslash, no lookup is performed.
1006 static char *path_lookup(const char *cmd, char **path, int exe_only)
1008 char *prog = NULL;
1009 int len = strlen(cmd);
1010 int isexe = len >= 4 && !strcasecmp(cmd+len-4, ".exe");
1012 if (strchr(cmd, '/') || strchr(cmd, '\\'))
1013 prog = xstrdup(cmd);
1015 while (!prog && *path)
1016 prog = lookup_prog(*path++, cmd, isexe, exe_only);
1018 return prog;
1022 * Create environment block suitable for CreateProcess. Merges current
1023 * process environment and the supplied environment changes.
1025 static wchar_t *make_environment_block(char **deltaenv)
1027 wchar_t *wenvblk = NULL;
1028 char **tmpenv;
1029 int i = 0, size = environ_size, wenvsz = 0, wenvpos = 0;
1031 while (deltaenv && deltaenv[i])
1032 i++;
1034 /* copy the environment, leaving space for changes */
1035 tmpenv = xmalloc((size + i) * sizeof(char*));
1036 memcpy(tmpenv, environ, size * sizeof(char*));
1038 /* merge supplied environment changes into the temporary environment */
1039 for (i = 0; deltaenv && deltaenv[i]; i++)
1040 size = do_putenv(tmpenv, deltaenv[i], size, 0);
1042 /* create environment block from temporary environment */
1043 for (i = 0; tmpenv[i]; i++) {
1044 size = 2 * strlen(tmpenv[i]) + 2; /* +2 for final \0 */
1045 ALLOC_GROW(wenvblk, (wenvpos + size) * sizeof(wchar_t), wenvsz);
1046 wenvpos += xutftowcs(&wenvblk[wenvpos], tmpenv[i], size) + 1;
1048 /* add final \0 terminator */
1049 wenvblk[wenvpos] = 0;
1050 free(tmpenv);
1051 return wenvblk;
1054 struct pinfo_t {
1055 struct pinfo_t *next;
1056 pid_t pid;
1057 HANDLE proc;
1058 } pinfo_t;
1059 struct pinfo_t *pinfo = NULL;
1060 CRITICAL_SECTION pinfo_cs;
1062 static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaenv,
1063 const char *dir,
1064 int prepend_cmd, int fhin, int fhout, int fherr)
1066 STARTUPINFOW si;
1067 PROCESS_INFORMATION pi;
1068 struct strbuf args;
1069 wchar_t wcmd[MAX_PATH], wdir[MAX_PATH], *wargs, *wenvblk = NULL;
1070 unsigned flags = CREATE_UNICODE_ENVIRONMENT;
1071 BOOL ret;
1073 /* Determine whether or not we are associated to a console */
1074 HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
1075 FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
1076 FILE_ATTRIBUTE_NORMAL, NULL);
1077 if (cons == INVALID_HANDLE_VALUE) {
1078 /* There is no console associated with this process.
1079 * Since the child is a console process, Windows
1080 * would normally create a console window. But
1081 * since we'll be redirecting std streams, we do
1082 * not need the console.
1083 * It is necessary to use DETACHED_PROCESS
1084 * instead of CREATE_NO_WINDOW to make ssh
1085 * recognize that it has no console.
1087 flags |= DETACHED_PROCESS;
1088 } else {
1089 /* There is already a console. If we specified
1090 * DETACHED_PROCESS here, too, Windows would
1091 * disassociate the child from the console.
1092 * The same is true for CREATE_NO_WINDOW.
1093 * Go figure!
1095 CloseHandle(cons);
1097 memset(&si, 0, sizeof(si));
1098 si.cb = sizeof(si);
1099 si.dwFlags = STARTF_USESTDHANDLES;
1100 si.hStdInput = winansi_get_osfhandle(fhin);
1101 si.hStdOutput = winansi_get_osfhandle(fhout);
1102 si.hStdError = winansi_get_osfhandle(fherr);
1104 if (xutftowcs_path(wcmd, cmd) < 0)
1105 return -1;
1106 if (dir && xutftowcs_path(wdir, dir) < 0)
1107 return -1;
1109 /* concatenate argv, quoting args as we go */
1110 strbuf_init(&args, 0);
1111 if (prepend_cmd) {
1112 char *quoted = (char *)quote_arg(cmd);
1113 strbuf_addstr(&args, quoted);
1114 if (quoted != cmd)
1115 free(quoted);
1117 for (; *argv; argv++) {
1118 char *quoted = (char *)quote_arg(*argv);
1119 if (*args.buf)
1120 strbuf_addch(&args, ' ');
1121 strbuf_addstr(&args, quoted);
1122 if (quoted != *argv)
1123 free(quoted);
1126 wargs = xmalloc((2 * args.len + 1) * sizeof(wchar_t));
1127 xutftowcs(wargs, args.buf, 2 * args.len + 1);
1128 strbuf_release(&args);
1130 wenvblk = make_environment_block(deltaenv);
1132 memset(&pi, 0, sizeof(pi));
1133 ret = CreateProcessW(wcmd, wargs, NULL, NULL, TRUE, flags,
1134 wenvblk, dir ? wdir : NULL, &si, &pi);
1136 free(wenvblk);
1137 free(wargs);
1139 if (!ret) {
1140 errno = ENOENT;
1141 return -1;
1143 CloseHandle(pi.hThread);
1146 * The process ID is the human-readable identifier of the process
1147 * that we want to present in log and error messages. The handle
1148 * is not useful for this purpose. But we cannot close it, either,
1149 * because it is not possible to turn a process ID into a process
1150 * handle after the process terminated.
1151 * Keep the handle in a list for waitpid.
1153 EnterCriticalSection(&pinfo_cs);
1155 struct pinfo_t *info = xmalloc(sizeof(struct pinfo_t));
1156 info->pid = pi.dwProcessId;
1157 info->proc = pi.hProcess;
1158 info->next = pinfo;
1159 pinfo = info;
1161 LeaveCriticalSection(&pinfo_cs);
1163 return (pid_t)pi.dwProcessId;
1166 static pid_t mingw_spawnv(const char *cmd, const char **argv, int prepend_cmd)
1168 return mingw_spawnve_fd(cmd, argv, NULL, NULL, prepend_cmd, 0, 1, 2);
1171 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **deltaenv,
1172 const char *dir,
1173 int fhin, int fhout, int fherr)
1175 pid_t pid;
1176 char **path = get_path_split();
1177 char *prog = path_lookup(cmd, path, 0);
1179 if (!prog) {
1180 errno = ENOENT;
1181 pid = -1;
1183 else {
1184 const char *interpr = parse_interpreter(prog);
1186 if (interpr) {
1187 const char *argv0 = argv[0];
1188 char *iprog = path_lookup(interpr, path, 1);
1189 argv[0] = prog;
1190 if (!iprog) {
1191 errno = ENOENT;
1192 pid = -1;
1194 else {
1195 pid = mingw_spawnve_fd(iprog, argv, deltaenv, dir, 1,
1196 fhin, fhout, fherr);
1197 free(iprog);
1199 argv[0] = argv0;
1201 else
1202 pid = mingw_spawnve_fd(prog, argv, deltaenv, dir, 0,
1203 fhin, fhout, fherr);
1204 free(prog);
1206 free_path_split(path);
1207 return pid;
1210 static int try_shell_exec(const char *cmd, char *const *argv)
1212 const char *interpr = parse_interpreter(cmd);
1213 char **path;
1214 char *prog;
1215 int pid = 0;
1217 if (!interpr)
1218 return 0;
1219 path = get_path_split();
1220 prog = path_lookup(interpr, path, 1);
1221 if (prog) {
1222 int argc = 0;
1223 const char **argv2;
1224 while (argv[argc]) argc++;
1225 argv2 = xmalloc(sizeof(*argv) * (argc+1));
1226 argv2[0] = (char *)cmd; /* full path to the script file */
1227 memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
1228 pid = mingw_spawnv(prog, argv2, 1);
1229 if (pid >= 0) {
1230 int status;
1231 if (waitpid(pid, &status, 0) < 0)
1232 status = 255;
1233 exit(status);
1235 pid = 1; /* indicate that we tried but failed */
1236 free(prog);
1237 free(argv2);
1239 free_path_split(path);
1240 return pid;
1243 int mingw_execv(const char *cmd, char *const *argv)
1245 /* check if git_command is a shell script */
1246 if (!try_shell_exec(cmd, argv)) {
1247 int pid, status;
1249 pid = mingw_spawnv(cmd, (const char **)argv, 0);
1250 if (pid < 0)
1251 return -1;
1252 if (waitpid(pid, &status, 0) < 0)
1253 status = 255;
1254 exit(status);
1256 return -1;
1259 int mingw_execvp(const char *cmd, char *const *argv)
1261 char **path = get_path_split();
1262 char *prog = path_lookup(cmd, path, 0);
1264 if (prog) {
1265 mingw_execv(prog, argv);
1266 free(prog);
1267 } else
1268 errno = ENOENT;
1270 free_path_split(path);
1271 return -1;
1274 int mingw_kill(pid_t pid, int sig)
1276 if (pid > 0 && sig == SIGTERM) {
1277 HANDLE h = OpenProcess(PROCESS_TERMINATE, FALSE, pid);
1279 if (TerminateProcess(h, -1)) {
1280 CloseHandle(h);
1281 return 0;
1284 errno = err_win_to_posix(GetLastError());
1285 CloseHandle(h);
1286 return -1;
1289 errno = EINVAL;
1290 return -1;
1294 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1295 * that service contains a numerical port, or that it is null. It
1296 * does a simple search using gethostbyname, and returns one IPv4 host
1297 * if one was found.
1299 static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
1300 const struct addrinfo *hints,
1301 struct addrinfo **res)
1303 struct hostent *h = NULL;
1304 struct addrinfo *ai;
1305 struct sockaddr_in *sin;
1307 if (node) {
1308 h = gethostbyname(node);
1309 if (!h)
1310 return WSAGetLastError();
1313 ai = xmalloc(sizeof(struct addrinfo));
1314 *res = ai;
1315 ai->ai_flags = 0;
1316 ai->ai_family = AF_INET;
1317 ai->ai_socktype = hints ? hints->ai_socktype : 0;
1318 switch (ai->ai_socktype) {
1319 case SOCK_STREAM:
1320 ai->ai_protocol = IPPROTO_TCP;
1321 break;
1322 case SOCK_DGRAM:
1323 ai->ai_protocol = IPPROTO_UDP;
1324 break;
1325 default:
1326 ai->ai_protocol = 0;
1327 break;
1329 ai->ai_addrlen = sizeof(struct sockaddr_in);
1330 if (hints && (hints->ai_flags & AI_CANONNAME))
1331 ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
1332 else
1333 ai->ai_canonname = NULL;
1335 sin = xmalloc(ai->ai_addrlen);
1336 memset(sin, 0, ai->ai_addrlen);
1337 sin->sin_family = AF_INET;
1338 /* Note: getaddrinfo is supposed to allow service to be a string,
1339 * which should be looked up using getservbyname. This is
1340 * currently not implemented */
1341 if (service)
1342 sin->sin_port = htons(atoi(service));
1343 if (h)
1344 sin->sin_addr = *(struct in_addr *)h->h_addr;
1345 else if (hints && (hints->ai_flags & AI_PASSIVE))
1346 sin->sin_addr.s_addr = INADDR_ANY;
1347 else
1348 sin->sin_addr.s_addr = INADDR_LOOPBACK;
1349 ai->ai_addr = (struct sockaddr *)sin;
1350 ai->ai_next = 0;
1351 return 0;
1354 static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
1356 free(res->ai_canonname);
1357 free(res->ai_addr);
1358 free(res);
1361 static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
1362 char *host, DWORD hostlen,
1363 char *serv, DWORD servlen, int flags)
1365 const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
1366 if (sa->sa_family != AF_INET)
1367 return EAI_FAMILY;
1368 if (!host && !serv)
1369 return EAI_NONAME;
1371 if (host && hostlen > 0) {
1372 struct hostent *ent = NULL;
1373 if (!(flags & NI_NUMERICHOST))
1374 ent = gethostbyaddr((const char *)&sin->sin_addr,
1375 sizeof(sin->sin_addr), AF_INET);
1377 if (ent)
1378 snprintf(host, hostlen, "%s", ent->h_name);
1379 else if (flags & NI_NAMEREQD)
1380 return EAI_NONAME;
1381 else
1382 snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
1385 if (serv && servlen > 0) {
1386 struct servent *ent = NULL;
1387 if (!(flags & NI_NUMERICSERV))
1388 ent = getservbyport(sin->sin_port,
1389 flags & NI_DGRAM ? "udp" : "tcp");
1391 if (ent)
1392 snprintf(serv, servlen, "%s", ent->s_name);
1393 else
1394 snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
1397 return 0;
1400 static HMODULE ipv6_dll = NULL;
1401 static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
1402 static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
1403 const struct addrinfo *hints,
1404 struct addrinfo **res);
1405 static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
1406 char *host, DWORD hostlen,
1407 char *serv, DWORD servlen, int flags);
1409 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1410 * don't need to try to load that one dynamically.
1413 static void socket_cleanup(void)
1415 WSACleanup();
1416 if (ipv6_dll)
1417 FreeLibrary(ipv6_dll);
1418 ipv6_dll = NULL;
1419 ipv6_freeaddrinfo = freeaddrinfo_stub;
1420 ipv6_getaddrinfo = getaddrinfo_stub;
1421 ipv6_getnameinfo = getnameinfo_stub;
1424 static void ensure_socket_initialization(void)
1426 WSADATA wsa;
1427 static int initialized = 0;
1428 const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
1429 const char **name;
1431 if (initialized)
1432 return;
1434 if (WSAStartup(MAKEWORD(2,2), &wsa))
1435 die("unable to initialize winsock subsystem, error %d",
1436 WSAGetLastError());
1438 for (name = libraries; *name; name++) {
1439 ipv6_dll = LoadLibrary(*name);
1440 if (!ipv6_dll)
1441 continue;
1443 ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
1444 GetProcAddress(ipv6_dll, "freeaddrinfo");
1445 ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
1446 const struct addrinfo *,
1447 struct addrinfo **))
1448 GetProcAddress(ipv6_dll, "getaddrinfo");
1449 ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
1450 socklen_t, char *, DWORD,
1451 char *, DWORD, int))
1452 GetProcAddress(ipv6_dll, "getnameinfo");
1453 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1454 FreeLibrary(ipv6_dll);
1455 ipv6_dll = NULL;
1456 } else
1457 break;
1459 if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
1460 ipv6_freeaddrinfo = freeaddrinfo_stub;
1461 ipv6_getaddrinfo = getaddrinfo_stub;
1462 ipv6_getnameinfo = getnameinfo_stub;
1465 atexit(socket_cleanup);
1466 initialized = 1;
1469 #undef gethostname
1470 int mingw_gethostname(char *name, int namelen)
1472 ensure_socket_initialization();
1473 return gethostname(name, namelen);
1476 #undef gethostbyname
1477 struct hostent *mingw_gethostbyname(const char *host)
1479 ensure_socket_initialization();
1480 return gethostbyname(host);
1483 void mingw_freeaddrinfo(struct addrinfo *res)
1485 ipv6_freeaddrinfo(res);
1488 int mingw_getaddrinfo(const char *node, const char *service,
1489 const struct addrinfo *hints, struct addrinfo **res)
1491 ensure_socket_initialization();
1492 return ipv6_getaddrinfo(node, service, hints, res);
1495 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
1496 char *host, DWORD hostlen, char *serv, DWORD servlen,
1497 int flags)
1499 ensure_socket_initialization();
1500 return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
1503 int mingw_socket(int domain, int type, int protocol)
1505 int sockfd;
1506 SOCKET s;
1508 ensure_socket_initialization();
1509 s = WSASocket(domain, type, protocol, NULL, 0, 0);
1510 if (s == INVALID_SOCKET) {
1512 * WSAGetLastError() values are regular BSD error codes
1513 * biased by WSABASEERR.
1514 * However, strerror() does not know about networking
1515 * specific errors, which are values beginning at 38 or so.
1516 * Therefore, we choose to leave the biased error code
1517 * in errno so that _if_ someone looks up the code somewhere,
1518 * then it is at least the number that are usually listed.
1520 errno = WSAGetLastError();
1521 return -1;
1523 /* convert into a file descriptor */
1524 if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
1525 closesocket(s);
1526 return error("unable to make a socket file descriptor: %s",
1527 strerror(errno));
1529 return sockfd;
1532 #undef connect
1533 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
1535 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1536 return connect(s, sa, sz);
1539 #undef bind
1540 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz)
1542 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1543 return bind(s, sa, sz);
1546 #undef setsockopt
1547 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen)
1549 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1550 return setsockopt(s, lvl, optname, (const char*)optval, optlen);
1553 #undef shutdown
1554 int mingw_shutdown(int sockfd, int how)
1556 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1557 return shutdown(s, how);
1560 #undef listen
1561 int mingw_listen(int sockfd, int backlog)
1563 SOCKET s = (SOCKET)_get_osfhandle(sockfd);
1564 return listen(s, backlog);
1567 #undef accept
1568 int mingw_accept(int sockfd1, struct sockaddr *sa, socklen_t *sz)
1570 int sockfd2;
1572 SOCKET s1 = (SOCKET)_get_osfhandle(sockfd1);
1573 SOCKET s2 = accept(s1, sa, sz);
1575 /* convert into a file descriptor */
1576 if ((sockfd2 = _open_osfhandle(s2, O_RDWR|O_BINARY)) < 0) {
1577 int err = errno;
1578 closesocket(s2);
1579 return error("unable to make a socket file descriptor: %s",
1580 strerror(err));
1582 return sockfd2;
1585 #undef rename
1586 int mingw_rename(const char *pold, const char *pnew)
1588 DWORD attrs, gle;
1589 int tries = 0;
1590 wchar_t wpold[MAX_PATH], wpnew[MAX_PATH];
1591 if (xutftowcs_path(wpold, pold) < 0 || xutftowcs_path(wpnew, pnew) < 0)
1592 return -1;
1595 * Try native rename() first to get errno right.
1596 * It is based on MoveFile(), which cannot overwrite existing files.
1598 if (!_wrename(wpold, wpnew))
1599 return 0;
1600 if (errno != EEXIST)
1601 return -1;
1602 repeat:
1603 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1604 return 0;
1605 /* TODO: translate more errors */
1606 gle = GetLastError();
1607 if (gle == ERROR_ACCESS_DENIED &&
1608 (attrs = GetFileAttributesW(wpnew)) != INVALID_FILE_ATTRIBUTES) {
1609 if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
1610 errno = EISDIR;
1611 return -1;
1613 if ((attrs & FILE_ATTRIBUTE_READONLY) &&
1614 SetFileAttributesW(wpnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
1615 if (MoveFileExW(wpold, wpnew, MOVEFILE_REPLACE_EXISTING))
1616 return 0;
1617 gle = GetLastError();
1618 /* revert file attributes on failure */
1619 SetFileAttributesW(wpnew, attrs);
1622 if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
1624 * We assume that some other process had the source or
1625 * destination file open at the wrong moment and retry.
1626 * In order to give the other process a higher chance to
1627 * complete its operation, we give up our time slice now.
1628 * If we have to retry again, we do sleep a bit.
1630 Sleep(delay[tries]);
1631 tries++;
1632 goto repeat;
1634 if (gle == ERROR_ACCESS_DENIED &&
1635 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1636 "Should I try again?", pold, pnew))
1637 goto repeat;
1639 errno = EACCES;
1640 return -1;
1644 * Note that this doesn't return the actual pagesize, but
1645 * the allocation granularity. If future Windows specific git code
1646 * needs the real getpagesize function, we need to find another solution.
1648 int mingw_getpagesize(void)
1650 SYSTEM_INFO si;
1651 GetSystemInfo(&si);
1652 return si.dwAllocationGranularity;
1655 struct passwd *getpwuid(int uid)
1657 static char user_name[100];
1658 static struct passwd p;
1660 DWORD len = sizeof(user_name);
1661 if (!GetUserName(user_name, &len))
1662 return NULL;
1663 p.pw_name = user_name;
1664 p.pw_gecos = "unknown";
1665 p.pw_dir = NULL;
1666 return &p;
1669 static HANDLE timer_event;
1670 static HANDLE timer_thread;
1671 static int timer_interval;
1672 static int one_shot;
1673 static sig_handler_t timer_fn = SIG_DFL;
1675 /* The timer works like this:
1676 * The thread, ticktack(), is a trivial routine that most of the time
1677 * only waits to receive the signal to terminate. The main thread tells
1678 * the thread to terminate by setting the timer_event to the signalled
1679 * state.
1680 * But ticktack() interrupts the wait state after the timer's interval
1681 * length to call the signal handler.
1684 static unsigned __stdcall ticktack(void *dummy)
1686 while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
1687 if (timer_fn == SIG_DFL)
1688 die("Alarm");
1689 if (timer_fn != SIG_IGN)
1690 timer_fn(SIGALRM);
1691 if (one_shot)
1692 break;
1694 return 0;
1697 static int start_timer_thread(void)
1699 timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
1700 if (timer_event) {
1701 timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
1702 if (!timer_thread )
1703 return errno = ENOMEM,
1704 error("cannot start timer thread");
1705 } else
1706 return errno = ENOMEM,
1707 error("cannot allocate resources for timer");
1708 return 0;
1711 static void stop_timer_thread(void)
1713 if (timer_event)
1714 SetEvent(timer_event); /* tell thread to terminate */
1715 if (timer_thread) {
1716 int rc = WaitForSingleObject(timer_thread, 1000);
1717 if (rc == WAIT_TIMEOUT)
1718 error("timer thread did not terminate timely");
1719 else if (rc != WAIT_OBJECT_0)
1720 error("waiting for timer thread failed: %lu",
1721 GetLastError());
1722 CloseHandle(timer_thread);
1724 if (timer_event)
1725 CloseHandle(timer_event);
1726 timer_event = NULL;
1727 timer_thread = NULL;
1730 static inline int is_timeval_eq(const struct timeval *i1, const struct timeval *i2)
1732 return i1->tv_sec == i2->tv_sec && i1->tv_usec == i2->tv_usec;
1735 int setitimer(int type, struct itimerval *in, struct itimerval *out)
1737 static const struct timeval zero;
1738 static int atexit_done;
1740 if (out != NULL)
1741 return errno = EINVAL,
1742 error("setitimer param 3 != NULL not implemented");
1743 if (!is_timeval_eq(&in->it_interval, &zero) &&
1744 !is_timeval_eq(&in->it_interval, &in->it_value))
1745 return errno = EINVAL,
1746 error("setitimer: it_interval must be zero or eq it_value");
1748 if (timer_thread)
1749 stop_timer_thread();
1751 if (is_timeval_eq(&in->it_value, &zero) &&
1752 is_timeval_eq(&in->it_interval, &zero))
1753 return 0;
1755 timer_interval = in->it_value.tv_sec * 1000 + in->it_value.tv_usec / 1000;
1756 one_shot = is_timeval_eq(&in->it_interval, &zero);
1757 if (!atexit_done) {
1758 atexit(stop_timer_thread);
1759 atexit_done = 1;
1761 return start_timer_thread();
1764 int sigaction(int sig, struct sigaction *in, struct sigaction *out)
1766 if (sig != SIGALRM)
1767 return errno = EINVAL,
1768 error("sigaction only implemented for SIGALRM");
1769 if (out != NULL)
1770 return errno = EINVAL,
1771 error("sigaction: param 3 != NULL not implemented");
1773 timer_fn = in->sa_handler;
1774 return 0;
1777 #undef signal
1778 sig_handler_t mingw_signal(int sig, sig_handler_t handler)
1780 sig_handler_t old = timer_fn;
1781 if (sig != SIGALRM)
1782 return signal(sig, handler);
1783 timer_fn = handler;
1784 return old;
1787 static const char *make_backslash_path(const char *path)
1789 static char buf[PATH_MAX + 1];
1790 char *c;
1792 if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
1793 die("Too long path: %.*s", 60, path);
1795 for (c = buf; *c; c++) {
1796 if (*c == '/')
1797 *c = '\\';
1799 return buf;
1802 void mingw_open_html(const char *unixpath)
1804 const char *htmlpath = make_backslash_path(unixpath);
1805 typedef HINSTANCE (WINAPI *T)(HWND, const char *,
1806 const char *, const char *, const char *, INT);
1807 T ShellExecute;
1808 HMODULE shell32;
1809 int r;
1811 shell32 = LoadLibrary("shell32.dll");
1812 if (!shell32)
1813 die("cannot load shell32.dll");
1814 ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
1815 if (!ShellExecute)
1816 die("cannot run browser");
1818 printf("Launching default browser to display HTML ...\n");
1819 r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
1820 FreeLibrary(shell32);
1821 /* see the MSDN documentation referring to the result codes here */
1822 if (r <= 32) {
1823 die("failed to launch browser for %.*s", MAX_PATH, unixpath);
1827 int link(const char *oldpath, const char *newpath)
1829 typedef BOOL (WINAPI *T)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES);
1830 static T create_hard_link = NULL;
1831 wchar_t woldpath[MAX_PATH], wnewpath[MAX_PATH];
1832 if (xutftowcs_path(woldpath, oldpath) < 0 ||
1833 xutftowcs_path(wnewpath, newpath) < 0)
1834 return -1;
1836 if (!create_hard_link) {
1837 create_hard_link = (T) GetProcAddress(
1838 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1839 if (!create_hard_link)
1840 create_hard_link = (T)-1;
1842 if (create_hard_link == (T)-1) {
1843 errno = ENOSYS;
1844 return -1;
1846 if (!create_hard_link(wnewpath, woldpath, NULL)) {
1847 errno = err_win_to_posix(GetLastError());
1848 return -1;
1850 return 0;
1853 pid_t waitpid(pid_t pid, int *status, int options)
1855 HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION,
1856 FALSE, pid);
1857 if (!h) {
1858 errno = ECHILD;
1859 return -1;
1862 if (pid > 0 && options & WNOHANG) {
1863 if (WAIT_OBJECT_0 != WaitForSingleObject(h, 0)) {
1864 CloseHandle(h);
1865 return 0;
1867 options &= ~WNOHANG;
1870 if (options == 0) {
1871 struct pinfo_t **ppinfo;
1872 if (WaitForSingleObject(h, INFINITE) != WAIT_OBJECT_0) {
1873 CloseHandle(h);
1874 return 0;
1877 if (status)
1878 GetExitCodeProcess(h, (LPDWORD)status);
1880 EnterCriticalSection(&pinfo_cs);
1882 ppinfo = &pinfo;
1883 while (*ppinfo) {
1884 struct pinfo_t *info = *ppinfo;
1885 if (info->pid == pid) {
1886 CloseHandle(info->proc);
1887 *ppinfo = info->next;
1888 free(info);
1889 break;
1891 ppinfo = &info->next;
1894 LeaveCriticalSection(&pinfo_cs);
1896 CloseHandle(h);
1897 return pid;
1899 CloseHandle(h);
1901 errno = EINVAL;
1902 return -1;
1905 const char *get_windows_home_directory(void)
1907 static const char *home_directory = NULL;
1908 struct strbuf buf = STRBUF_INIT;
1910 if (home_directory)
1911 return home_directory;
1913 home_directory = getenv("HOME");
1914 if (home_directory && *home_directory)
1915 return home_directory;
1917 strbuf_addf(&buf, "%s/%s", getenv("HOMEDRIVE"), getenv("HOMEPATH"));
1918 home_directory = strbuf_detach(&buf, NULL);
1920 return home_directory;
1923 int mingw_offset_1st_component(const char *path)
1925 int offset = 0;
1926 if (has_dos_drive_prefix(path))
1927 offset = 2;
1929 /* unc paths */
1930 else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
1932 /* skip server name */
1933 char *pos = strpbrk(path + 2, "\\/");
1934 if (!pos)
1935 return 0; /* Error: malformed unc path */
1937 do {
1938 pos++;
1939 } while (*pos && !is_dir_sep(*pos));
1941 offset = pos - path;
1944 return offset + is_dir_sep(path[offset]);
1947 int xutftowcsn(wchar_t *wcs, const char *utfs, size_t wcslen, int utflen)
1949 int upos = 0, wpos = 0;
1950 const unsigned char *utf = (const unsigned char*) utfs;
1951 if (!utf || !wcs || wcslen < 1) {
1952 errno = EINVAL;
1953 return -1;
1955 /* reserve space for \0 */
1956 wcslen--;
1957 if (utflen < 0)
1958 utflen = INT_MAX;
1960 while (upos < utflen) {
1961 int c = utf[upos++] & 0xff;
1962 if (utflen == INT_MAX && c == 0)
1963 break;
1965 if (wpos >= wcslen) {
1966 wcs[wpos] = 0;
1967 errno = ERANGE;
1968 return -1;
1971 if (c < 0x80) {
1972 /* ASCII */
1973 wcs[wpos++] = c;
1974 } else if (c >= 0xc2 && c < 0xe0 && upos < utflen &&
1975 (utf[upos] & 0xc0) == 0x80) {
1976 /* 2-byte utf-8 */
1977 c = ((c & 0x1f) << 6);
1978 c |= (utf[upos++] & 0x3f);
1979 wcs[wpos++] = c;
1980 } else if (c >= 0xe0 && c < 0xf0 && upos + 1 < utflen &&
1981 !(c == 0xe0 && utf[upos] < 0xa0) && /* over-long encoding */
1982 (utf[upos] & 0xc0) == 0x80 &&
1983 (utf[upos + 1] & 0xc0) == 0x80) {
1984 /* 3-byte utf-8 */
1985 c = ((c & 0x0f) << 12);
1986 c |= ((utf[upos++] & 0x3f) << 6);
1987 c |= (utf[upos++] & 0x3f);
1988 wcs[wpos++] = c;
1989 } else if (c >= 0xf0 && c < 0xf5 && upos + 2 < utflen &&
1990 wpos + 1 < wcslen &&
1991 !(c == 0xf0 && utf[upos] < 0x90) && /* over-long encoding */
1992 !(c == 0xf4 && utf[upos] >= 0x90) && /* > \u10ffff */
1993 (utf[upos] & 0xc0) == 0x80 &&
1994 (utf[upos + 1] & 0xc0) == 0x80 &&
1995 (utf[upos + 2] & 0xc0) == 0x80) {
1996 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
1997 c = ((c & 0x07) << 18);
1998 c |= ((utf[upos++] & 0x3f) << 12);
1999 c |= ((utf[upos++] & 0x3f) << 6);
2000 c |= (utf[upos++] & 0x3f);
2001 c -= 0x10000;
2002 wcs[wpos++] = 0xd800 | (c >> 10);
2003 wcs[wpos++] = 0xdc00 | (c & 0x3ff);
2004 } else if (c >= 0xa0) {
2005 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
2006 wcs[wpos++] = c;
2007 } else {
2008 /* invalid utf-8 byte, non-printable unicode: convert to hex */
2009 static const char *hex = "0123456789abcdef";
2010 wcs[wpos++] = hex[c >> 4];
2011 if (wpos < wcslen)
2012 wcs[wpos++] = hex[c & 0x0f];
2015 wcs[wpos] = 0;
2016 return wpos;
2019 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen)
2021 if (!wcs || !utf || utflen < 1) {
2022 errno = EINVAL;
2023 return -1;
2025 utflen = WideCharToMultiByte(CP_UTF8, 0, wcs, -1, utf, utflen, NULL, NULL);
2026 if (utflen)
2027 return utflen - 1;
2028 errno = ERANGE;
2029 return -1;
2033 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2034 * mingw startup code, see init.c in mingw runtime).
2036 int _CRT_glob = 0;
2038 typedef struct {
2039 int newmode;
2040 } _startupinfo;
2042 extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
2043 _startupinfo *si);
2045 static NORETURN void die_startup()
2047 fputs("fatal: not enough memory for initialization", stderr);
2048 exit(128);
2051 static void *malloc_startup(size_t size)
2053 void *result = malloc(size);
2054 if (!result)
2055 die_startup();
2056 return result;
2059 static char *wcstoutfdup_startup(char *buffer, const wchar_t *wcs, size_t len)
2061 len = xwcstoutf(buffer, wcs, len) + 1;
2062 return memcpy(malloc_startup(len), buffer, len);
2065 void mingw_startup()
2067 int i, maxlen, argc;
2068 char *buffer;
2069 wchar_t **wenv, **wargv;
2070 _startupinfo si;
2072 /* get wide char arguments and environment */
2073 si.newmode = 0;
2074 if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
2075 die_startup();
2077 /* determine size of argv and environ conversion buffer */
2078 maxlen = wcslen(_wpgmptr);
2079 for (i = 1; i < argc; i++)
2080 maxlen = max(maxlen, wcslen(wargv[i]));
2081 for (i = 0; wenv[i]; i++)
2082 maxlen = max(maxlen, wcslen(wenv[i]));
2085 * nedmalloc can't free CRT memory, allocate resizable environment
2086 * list. Note that xmalloc / xmemdupz etc. call getenv, so we cannot
2087 * use it while initializing the environment itself.
2089 environ_size = i + 1;
2090 environ_alloc = alloc_nr(environ_size * sizeof(char*));
2091 environ = malloc_startup(environ_alloc);
2093 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2094 maxlen = 3 * maxlen + 1;
2095 buffer = malloc_startup(maxlen);
2097 /* convert command line arguments and environment to UTF-8 */
2098 __argv[0] = wcstoutfdup_startup(buffer, _wpgmptr, maxlen);
2099 for (i = 1; i < argc; i++)
2100 __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
2101 for (i = 0; wenv[i]; i++)
2102 environ[i] = wcstoutfdup_startup(buffer, wenv[i], maxlen);
2103 environ[i] = NULL;
2104 free(buffer);
2106 /* sort environment for O(log n) getenv / putenv */
2107 qsort(environ, i, sizeof(char*), compareenv);
2109 /* fix Windows specific environment settings */
2111 /* on Windows it is TMP and TEMP */
2112 if (!getenv("TMPDIR")) {
2113 const char *tmp = getenv("TMP");
2114 if (!tmp)
2115 tmp = getenv("TEMP");
2116 if (tmp)
2117 setenv("TMPDIR", tmp, 1);
2120 /* simulate TERM to enable auto-color (see color.c) */
2121 if (!getenv("TERM"))
2122 setenv("TERM", "winansi", 1);
2124 /* initialize critical section for waitpid pinfo_t list */
2125 InitializeCriticalSection(&pinfo_cs);
2127 /* set up default file mode and file modes for stdin/out/err */
2128 _fmode = _O_BINARY;
2129 _setmode(_fileno(stdin), _O_BINARY);
2130 _setmode(_fileno(stdout), _O_BINARY);
2131 _setmode(_fileno(stderr), _O_BINARY);
2133 /* initialize Unicode console */
2134 winansi_init();