1 #include "../git-compat-util.h"
6 #include "../run-command.h"
8 static const int delay
[] = { 0, 1, 10, 20, 40 };
10 int err_win_to_posix(DWORD winerr
)
14 case ERROR_ACCESS_DENIED
: error
= EACCES
; break;
15 case ERROR_ACCOUNT_DISABLED
: error
= EACCES
; break;
16 case ERROR_ACCOUNT_RESTRICTION
: error
= EACCES
; break;
17 case ERROR_ALREADY_ASSIGNED
: error
= EBUSY
; break;
18 case ERROR_ALREADY_EXISTS
: error
= EEXIST
; break;
19 case ERROR_ARITHMETIC_OVERFLOW
: error
= ERANGE
; break;
20 case ERROR_BAD_COMMAND
: error
= EIO
; break;
21 case ERROR_BAD_DEVICE
: error
= ENODEV
; break;
22 case ERROR_BAD_DRIVER_LEVEL
: error
= ENXIO
; break;
23 case ERROR_BAD_EXE_FORMAT
: error
= ENOEXEC
; break;
24 case ERROR_BAD_FORMAT
: error
= ENOEXEC
; break;
25 case ERROR_BAD_LENGTH
: error
= EINVAL
; break;
26 case ERROR_BAD_PATHNAME
: error
= ENOENT
; break;
27 case ERROR_BAD_PIPE
: error
= EPIPE
; break;
28 case ERROR_BAD_UNIT
: error
= ENODEV
; break;
29 case ERROR_BAD_USERNAME
: error
= EINVAL
; break;
30 case ERROR_BROKEN_PIPE
: error
= EPIPE
; break;
31 case ERROR_BUFFER_OVERFLOW
: error
= ENAMETOOLONG
; break;
32 case ERROR_BUSY
: error
= EBUSY
; break;
33 case ERROR_BUSY_DRIVE
: error
= EBUSY
; break;
34 case ERROR_CALL_NOT_IMPLEMENTED
: error
= ENOSYS
; break;
35 case ERROR_CANNOT_MAKE
: error
= EACCES
; break;
36 case ERROR_CANTOPEN
: error
= EIO
; break;
37 case ERROR_CANTREAD
: error
= EIO
; break;
38 case ERROR_CANTWRITE
: error
= EIO
; break;
39 case ERROR_CRC
: error
= EIO
; break;
40 case ERROR_CURRENT_DIRECTORY
: error
= EACCES
; break;
41 case ERROR_DEVICE_IN_USE
: error
= EBUSY
; break;
42 case ERROR_DEV_NOT_EXIST
: error
= ENODEV
; break;
43 case ERROR_DIRECTORY
: error
= EINVAL
; break;
44 case ERROR_DIR_NOT_EMPTY
: error
= ENOTEMPTY
; break;
45 case ERROR_DISK_CHANGE
: error
= EIO
; break;
46 case ERROR_DISK_FULL
: error
= ENOSPC
; break;
47 case ERROR_DRIVE_LOCKED
: error
= EBUSY
; break;
48 case ERROR_ENVVAR_NOT_FOUND
: error
= EINVAL
; break;
49 case ERROR_EXE_MARKED_INVALID
: error
= ENOEXEC
; break;
50 case ERROR_FILENAME_EXCED_RANGE
: error
= ENAMETOOLONG
; break;
51 case ERROR_FILE_EXISTS
: error
= EEXIST
; break;
52 case ERROR_FILE_INVALID
: error
= ENODEV
; break;
53 case ERROR_FILE_NOT_FOUND
: error
= ENOENT
; break;
54 case ERROR_GEN_FAILURE
: error
= EIO
; break;
55 case ERROR_HANDLE_DISK_FULL
: error
= ENOSPC
; break;
56 case ERROR_INSUFFICIENT_BUFFER
: error
= ENOMEM
; break;
57 case ERROR_INVALID_ACCESS
: error
= EACCES
; break;
58 case ERROR_INVALID_ADDRESS
: error
= EFAULT
; break;
59 case ERROR_INVALID_BLOCK
: error
= EFAULT
; break;
60 case ERROR_INVALID_DATA
: error
= EINVAL
; break;
61 case ERROR_INVALID_DRIVE
: error
= ENODEV
; break;
62 case ERROR_INVALID_EXE_SIGNATURE
: error
= ENOEXEC
; break;
63 case ERROR_INVALID_FLAGS
: error
= EINVAL
; break;
64 case ERROR_INVALID_FUNCTION
: error
= ENOSYS
; break;
65 case ERROR_INVALID_HANDLE
: error
= EBADF
; break;
66 case ERROR_INVALID_LOGON_HOURS
: error
= EACCES
; break;
67 case ERROR_INVALID_NAME
: error
= EINVAL
; break;
68 case ERROR_INVALID_OWNER
: error
= EINVAL
; break;
69 case ERROR_INVALID_PARAMETER
: error
= EINVAL
; break;
70 case ERROR_INVALID_PASSWORD
: error
= EPERM
; break;
71 case ERROR_INVALID_PRIMARY_GROUP
: error
= EINVAL
; break;
72 case ERROR_INVALID_SIGNAL_NUMBER
: error
= EINVAL
; break;
73 case ERROR_INVALID_TARGET_HANDLE
: error
= EIO
; break;
74 case ERROR_INVALID_WORKSTATION
: error
= EACCES
; break;
75 case ERROR_IO_DEVICE
: error
= EIO
; break;
76 case ERROR_IO_INCOMPLETE
: error
= EINTR
; break;
77 case ERROR_LOCKED
: error
= EBUSY
; break;
78 case ERROR_LOCK_VIOLATION
: error
= EACCES
; break;
79 case ERROR_LOGON_FAILURE
: error
= EACCES
; break;
80 case ERROR_MAPPED_ALIGNMENT
: error
= EINVAL
; break;
81 case ERROR_META_EXPANSION_TOO_LONG
: error
= E2BIG
; break;
82 case ERROR_MORE_DATA
: error
= EPIPE
; break;
83 case ERROR_NEGATIVE_SEEK
: error
= ESPIPE
; break;
84 case ERROR_NOACCESS
: error
= EFAULT
; break;
85 case ERROR_NONE_MAPPED
: error
= EINVAL
; break;
86 case ERROR_NOT_ENOUGH_MEMORY
: error
= ENOMEM
; break;
87 case ERROR_NOT_READY
: error
= EAGAIN
; break;
88 case ERROR_NOT_SAME_DEVICE
: error
= EXDEV
; break;
89 case ERROR_NO_DATA
: error
= EPIPE
; break;
90 case ERROR_NO_MORE_SEARCH_HANDLES
: error
= EIO
; break;
91 case ERROR_NO_PROC_SLOTS
: error
= EAGAIN
; break;
92 case ERROR_NO_SUCH_PRIVILEGE
: error
= EACCES
; break;
93 case ERROR_OPEN_FAILED
: error
= EIO
; break;
94 case ERROR_OPEN_FILES
: error
= EBUSY
; break;
95 case ERROR_OPERATION_ABORTED
: error
= EINTR
; break;
96 case ERROR_OUTOFMEMORY
: error
= ENOMEM
; break;
97 case ERROR_PASSWORD_EXPIRED
: error
= EACCES
; break;
98 case ERROR_PATH_BUSY
: error
= EBUSY
; break;
99 case ERROR_PATH_NOT_FOUND
: error
= ENOENT
; break;
100 case ERROR_PIPE_BUSY
: error
= EBUSY
; break;
101 case ERROR_PIPE_CONNECTED
: error
= EPIPE
; break;
102 case ERROR_PIPE_LISTENING
: error
= EPIPE
; break;
103 case ERROR_PIPE_NOT_CONNECTED
: error
= EPIPE
; break;
104 case ERROR_PRIVILEGE_NOT_HELD
: error
= EACCES
; break;
105 case ERROR_READ_FAULT
: error
= EIO
; break;
106 case ERROR_SEEK
: error
= EIO
; break;
107 case ERROR_SEEK_ON_DEVICE
: error
= ESPIPE
; break;
108 case ERROR_SHARING_BUFFER_EXCEEDED
: error
= ENFILE
; break;
109 case ERROR_SHARING_VIOLATION
: error
= EACCES
; break;
110 case ERROR_STACK_OVERFLOW
: error
= ENOMEM
; break;
111 case ERROR_SWAPERROR
: error
= ENOENT
; break;
112 case ERROR_TOO_MANY_MODULES
: error
= EMFILE
; break;
113 case ERROR_TOO_MANY_OPEN_FILES
: error
= EMFILE
; break;
114 case ERROR_UNRECOGNIZED_MEDIA
: error
= ENXIO
; break;
115 case ERROR_UNRECOGNIZED_VOLUME
: error
= ENODEV
; break;
116 case ERROR_WAIT_NO_CHILDREN
: error
= ECHILD
; break;
117 case ERROR_WRITE_FAULT
: error
= EIO
; break;
118 case ERROR_WRITE_PROTECT
: error
= EROFS
; break;
123 static inline int is_file_in_use_error(DWORD errcode
)
126 case ERROR_SHARING_VIOLATION
:
127 case ERROR_ACCESS_DENIED
:
134 static int read_yes_no_answer(void)
138 if (fgets(answer
, sizeof(answer
), stdin
)) {
139 size_t answer_len
= strlen(answer
);
140 int got_full_line
= 0, c
;
142 /* remove the newline */
143 if (answer_len
>= 2 && answer
[answer_len
-2] == '\r') {
144 answer
[answer_len
-2] = '\0';
146 } else if (answer_len
>= 1 && answer
[answer_len
-1] == '\n') {
147 answer
[answer_len
-1] = '\0';
150 /* flush the buffer in case we did not get the full line */
152 while ((c
= getchar()) != EOF
&& c
!= '\n')
155 /* we could not read, return the
156 * default answer which is no */
159 if (tolower(answer
[0]) == 'y' && !answer
[1])
161 if (!strncasecmp(answer
, "yes", sizeof(answer
)))
163 if (tolower(answer
[0]) == 'n' && !answer
[1])
165 if (!strncasecmp(answer
, "no", sizeof(answer
)))
168 /* did not find an answer we understand */
172 static int ask_yes_no_if_possible(const char *format
, ...)
175 const char *retry_hook
[] = { NULL
, NULL
, NULL
};
178 va_start(args
, format
);
179 vsnprintf(question
, sizeof(question
), format
, args
);
182 if ((retry_hook
[0] = getenv("GIT_ASK_YESNO"))) {
183 retry_hook
[1] = question
;
184 return !run_command_v_opt(retry_hook
, 0);
187 if (!isatty(_fileno(stdin
)) || !isatty(_fileno(stderr
)))
192 fprintf(stderr
, "%s (y/n) ", question
);
194 if ((answer
= read_yes_no_answer()) >= 0)
197 fprintf(stderr
, "Sorry, I did not understand your answer. "
198 "Please type 'y' or 'n'\n");
202 int mingw_unlink(const char *pathname
)
205 wchar_t wpathname
[MAX_PATH
];
206 if (xutftowcs_path(wpathname
, pathname
) < 0)
209 /* read-only files cannot be removed */
210 _wchmod(wpathname
, 0666);
211 while ((ret
= _wunlink(wpathname
)) == -1 && tries
< ARRAY_SIZE(delay
)) {
212 if (!is_file_in_use_error(GetLastError()))
215 * We assume that some other process had the source or
216 * destination file open at the wrong moment and retry.
217 * In order to give the other process a higher chance to
218 * complete its operation, we give up our time slice now.
219 * If we have to retry again, we do sleep a bit.
224 while (ret
== -1 && is_file_in_use_error(GetLastError()) &&
225 ask_yes_no_if_possible("Unlink of file '%s' failed. "
226 "Should I try again?", pathname
))
227 ret
= _wunlink(wpathname
);
231 static int is_dir_empty(const wchar_t *wpath
)
233 WIN32_FIND_DATAW findbuf
;
235 wchar_t wbuf
[MAX_PATH
+ 2];
237 wcscat(wbuf
, L
"\\*");
238 handle
= FindFirstFileW(wbuf
, &findbuf
);
239 if (handle
== INVALID_HANDLE_VALUE
)
240 return GetLastError() == ERROR_NO_MORE_FILES
;
242 while (!wcscmp(findbuf
.cFileName
, L
".") ||
243 !wcscmp(findbuf
.cFileName
, L
".."))
244 if (!FindNextFileW(handle
, &findbuf
))
245 return GetLastError() == ERROR_NO_MORE_FILES
;
250 int mingw_rmdir(const char *pathname
)
253 wchar_t wpathname
[MAX_PATH
];
254 if (xutftowcs_path(wpathname
, pathname
) < 0)
257 while ((ret
= _wrmdir(wpathname
)) == -1 && tries
< ARRAY_SIZE(delay
)) {
258 if (!is_file_in_use_error(GetLastError()))
259 errno
= err_win_to_posix(GetLastError());
262 if (!is_dir_empty(wpathname
)) {
267 * We assume that some other process had the source or
268 * destination file open at the wrong moment and retry.
269 * In order to give the other process a higher chance to
270 * complete its operation, we give up our time slice now.
271 * If we have to retry again, we do sleep a bit.
276 while (ret
== -1 && errno
== EACCES
&& is_file_in_use_error(GetLastError()) &&
277 ask_yes_no_if_possible("Deletion of directory '%s' failed. "
278 "Should I try again?", pathname
))
279 ret
= _wrmdir(wpathname
);
283 int mingw_mkdir(const char *path
, int mode
)
286 wchar_t wpath
[MAX_PATH
];
287 if (xutftowcs_path(wpath
, path
) < 0)
289 ret
= _wmkdir(wpath
);
293 int mingw_open (const char *filename
, int oflags
, ...)
298 wchar_t wfilename
[MAX_PATH
];
300 va_start(args
, oflags
);
301 mode
= va_arg(args
, int);
304 if (filename
&& !strcmp(filename
, "/dev/null"))
307 if (xutftowcs_path(wfilename
, filename
) < 0)
309 fd
= _wopen(wfilename
, oflags
, mode
);
311 if (fd
< 0 && (oflags
& O_CREAT
) && errno
== EACCES
) {
312 DWORD attrs
= GetFileAttributesW(wfilename
);
313 if (attrs
!= INVALID_FILE_ATTRIBUTES
&& (attrs
& FILE_ATTRIBUTE_DIRECTORY
))
319 static BOOL WINAPI
ctrl_ignore(DWORD type
)
325 int mingw_fgetc(FILE *stream
)
328 if (!isatty(_fileno(stream
)))
329 return fgetc(stream
);
331 SetConsoleCtrlHandler(ctrl_ignore
, TRUE
);
334 if (ch
!= EOF
|| GetLastError() != ERROR_OPERATION_ABORTED
)
337 /* Ctrl+C was pressed, simulate SIGINT and retry */
340 SetConsoleCtrlHandler(ctrl_ignore
, FALSE
);
345 FILE *mingw_fopen (const char *filename
, const char *otype
)
348 wchar_t wfilename
[MAX_PATH
], wotype
[4];
349 if (filename
&& !strcmp(filename
, "/dev/null"))
351 if (xutftowcs_path(wfilename
, filename
) < 0 ||
352 xutftowcs(wotype
, otype
, ARRAY_SIZE(wotype
)) < 0)
354 file
= _wfopen(wfilename
, wotype
);
358 FILE *mingw_freopen (const char *filename
, const char *otype
, FILE *stream
)
361 wchar_t wfilename
[MAX_PATH
], wotype
[4];
362 if (filename
&& !strcmp(filename
, "/dev/null"))
364 if (xutftowcs_path(wfilename
, filename
) < 0 ||
365 xutftowcs(wotype
, otype
, ARRAY_SIZE(wotype
)) < 0)
367 file
= _wfreopen(wfilename
, wotype
, stream
);
372 int mingw_fflush(FILE *stream
)
374 int ret
= fflush(stream
);
377 * write() is used behind the scenes of stdio output functions.
378 * Since git code does not check for errors after each stdio write
379 * operation, it can happen that write() is called by a later
380 * stdio function even if an earlier write() call failed. In the
381 * case of a pipe whose readable end was closed, only the first
382 * call to write() reports EPIPE on Windows. Subsequent write()
383 * calls report EINVAL. It is impossible to notice whether this
384 * fflush invocation triggered such a case, therefore, we have to
385 * catch all EINVAL errors whole-sale.
387 if (ret
&& errno
== EINVAL
)
393 int mingw_access(const char *filename
, int mode
)
395 wchar_t wfilename
[MAX_PATH
];
396 if (xutftowcs_path(wfilename
, filename
) < 0)
398 /* X_OK is not supported by the MSVCRT version */
399 return _waccess(wfilename
, mode
& ~X_OK
);
402 int mingw_chdir(const char *dirname
)
404 wchar_t wdirname
[MAX_PATH
];
405 if (xutftowcs_path(wdirname
, dirname
) < 0)
407 return _wchdir(wdirname
);
410 int mingw_chmod(const char *filename
, int mode
)
412 wchar_t wfilename
[MAX_PATH
];
413 if (xutftowcs_path(wfilename
, filename
) < 0)
415 return _wchmod(wfilename
, mode
);
419 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
420 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
422 static inline long long filetime_to_hnsec(const FILETIME
*ft
)
424 long long winTime
= ((long long)ft
->dwHighDateTime
<< 32) + ft
->dwLowDateTime
;
425 /* Windows to Unix Epoch conversion */
426 return winTime
- 116444736000000000LL;
429 static inline time_t filetime_to_time_t(const FILETIME
*ft
)
431 return (time_t)(filetime_to_hnsec(ft
) / 10000000);
434 /* We keep the do_lstat code in a separate function to avoid recursion.
435 * When a path ends with a slash, the stat will fail with ENOENT. In
436 * this case, we strip the trailing slashes and stat again.
438 * If follow is true then act like stat() and report on the link
439 * target. Otherwise report on the link itself.
441 static int do_lstat(int follow
, const char *file_name
, struct stat
*buf
)
443 WIN32_FILE_ATTRIBUTE_DATA fdata
;
444 wchar_t wfilename
[MAX_PATH
];
445 if (xutftowcs_path(wfilename
, file_name
) < 0)
448 if (GetFileAttributesExW(wfilename
, GetFileExInfoStandard
, &fdata
)) {
453 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
454 buf
->st_size
= fdata
.nFileSizeLow
|
455 (((off_t
)fdata
.nFileSizeHigh
)<<32);
456 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
457 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
458 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
459 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
460 if (fdata
.dwFileAttributes
& FILE_ATTRIBUTE_REPARSE_POINT
) {
461 WIN32_FIND_DATAW findbuf
;
462 HANDLE handle
= FindFirstFileW(wfilename
, &findbuf
);
463 if (handle
!= INVALID_HANDLE_VALUE
) {
464 if ((findbuf
.dwFileAttributes
& FILE_ATTRIBUTE_REPARSE_POINT
) &&
465 (findbuf
.dwReserved0
== IO_REPARSE_TAG_SYMLINK
)) {
467 char buffer
[MAXIMUM_REPARSE_DATA_BUFFER_SIZE
];
468 buf
->st_size
= readlink(file_name
, buffer
, MAXIMUM_REPARSE_DATA_BUFFER_SIZE
);
470 buf
->st_mode
= S_IFLNK
;
472 buf
->st_mode
|= S_IREAD
;
473 if (!(findbuf
.dwFileAttributes
& FILE_ATTRIBUTE_READONLY
))
474 buf
->st_mode
|= S_IWRITE
;
481 switch (GetLastError()) {
482 case ERROR_ACCESS_DENIED
:
483 case ERROR_SHARING_VIOLATION
:
484 case ERROR_LOCK_VIOLATION
:
485 case ERROR_SHARING_BUFFER_EXCEEDED
:
488 case ERROR_BUFFER_OVERFLOW
:
489 errno
= ENAMETOOLONG
;
491 case ERROR_NOT_ENOUGH_MEMORY
:
501 /* We provide our own lstat/fstat functions, since the provided
502 * lstat/fstat functions are so slow. These stat functions are
503 * tailored for Git's usage (read: fast), and are not meant to be
504 * complete. Note that Git stat()s are redirected to mingw_lstat()
505 * too, since Windows doesn't really handle symlinks that well.
507 static int do_stat_internal(int follow
, const char *file_name
, struct stat
*buf
)
510 char alt_name
[PATH_MAX
];
512 if (!do_lstat(follow
, file_name
, buf
))
515 /* if file_name ended in a '/', Windows returned ENOENT;
516 * try again without trailing slashes
521 namelen
= strlen(file_name
);
522 if (namelen
&& file_name
[namelen
-1] != '/')
524 while (namelen
&& file_name
[namelen
-1] == '/')
526 if (!namelen
|| namelen
>= PATH_MAX
)
529 memcpy(alt_name
, file_name
, namelen
);
530 alt_name
[namelen
] = 0;
531 return do_lstat(follow
, alt_name
, buf
);
534 int mingw_lstat(const char *file_name
, struct stat
*buf
)
536 return do_stat_internal(0, file_name
, buf
);
538 int mingw_stat(const char *file_name
, struct stat
*buf
)
540 return do_stat_internal(1, file_name
, buf
);
543 int mingw_fstat(int fd
, struct stat
*buf
)
545 HANDLE fh
= (HANDLE
)_get_osfhandle(fd
);
546 BY_HANDLE_FILE_INFORMATION fdata
;
548 if (fh
== INVALID_HANDLE_VALUE
) {
552 /* direct non-file handles to MS's fstat() */
553 if (GetFileType(fh
) != FILE_TYPE_DISK
)
554 return _fstati64(fd
, buf
);
556 if (GetFileInformationByHandle(fh
, &fdata
)) {
561 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
562 buf
->st_size
= fdata
.nFileSizeLow
|
563 (((off_t
)fdata
.nFileSizeHigh
)<<32);
564 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
565 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
566 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
567 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
574 static inline void time_t_to_filetime(time_t t
, FILETIME
*ft
)
576 long long winTime
= t
* 10000000LL + 116444736000000000LL;
577 ft
->dwLowDateTime
= winTime
;
578 ft
->dwHighDateTime
= winTime
>> 32;
581 int mingw_utime (const char *file_name
, const struct utimbuf
*times
)
586 wchar_t wfilename
[MAX_PATH
];
587 if (xutftowcs_path(wfilename
, file_name
) < 0)
590 /* must have write permission */
591 attrs
= GetFileAttributesW(wfilename
);
592 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
593 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
594 /* ignore errors here; open() will report them */
595 SetFileAttributesW(wfilename
, attrs
& ~FILE_ATTRIBUTE_READONLY
);
598 if ((fh
= _wopen(wfilename
, O_RDWR
| O_BINARY
)) < 0) {
604 time_t_to_filetime(times
->modtime
, &mft
);
605 time_t_to_filetime(times
->actime
, &aft
);
607 GetSystemTimeAsFileTime(&mft
);
610 if (!SetFileTime((HANDLE
)_get_osfhandle(fh
), NULL
, &aft
, &mft
)) {
618 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
619 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
620 /* ignore errors again */
621 SetFileAttributesW(wfilename
, attrs
);
626 unsigned int sleep (unsigned int seconds
)
632 char *mingw_mktemp(char *template)
634 wchar_t wtemplate
[MAX_PATH
];
635 if (xutftowcs_path(wtemplate
, template) < 0)
637 if (!_wmktemp(wtemplate
))
639 if (xwcstoutf(template, wtemplate
, strlen(template) + 1) < 0)
644 int mkstemp(char *template)
646 char *filename
= mktemp(template);
647 if (filename
== NULL
)
649 return open(filename
, O_RDWR
| O_CREAT
, 0600);
652 int gettimeofday(struct timeval
*tv
, void *tz
)
657 GetSystemTimeAsFileTime(&ft
);
658 hnsec
= filetime_to_hnsec(&ft
);
659 tv
->tv_sec
= hnsec
/ 10000000;
660 tv
->tv_usec
= (hnsec
% 10000000) / 10;
664 int pipe(int filedes
[2])
668 /* this creates non-inheritable handles */
669 if (!CreatePipe(&h
[0], &h
[1], NULL
, 8192)) {
670 errno
= err_win_to_posix(GetLastError());
673 filedes
[0] = _open_osfhandle((int)h
[0], O_NOINHERIT
);
674 if (filedes
[0] < 0) {
679 filedes
[1] = _open_osfhandle((int)h
[1], O_NOINHERIT
);
680 if (filedes
[0] < 0) {
688 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
690 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
691 memcpy(result
, gmtime(timep
), sizeof(struct tm
));
695 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
697 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
698 memcpy(result
, localtime(timep
), sizeof(struct tm
));
702 char *mingw_getcwd(char *pointer
, int len
)
705 wchar_t wpointer
[MAX_PATH
];
706 if (!_wgetcwd(wpointer
, ARRAY_SIZE(wpointer
)))
708 if (xwcstoutf(pointer
, wpointer
, len
) < 0)
710 for (i
= 0; pointer
[i
]; i
++)
711 if (pointer
[i
] == '\\')
717 char *mingw_getenv(const char *name
)
719 char *result
= getenv(name
);
720 if (!result
&& !strcmp(name
, "TMPDIR")) {
721 /* on Windows it is TMP and TEMP */
722 result
= getenv("TMP");
724 result
= getenv("TEMP");
726 else if (!result
&& !strcmp(name
, "TERM")) {
727 /* simulate TERM to enable auto-color (see color.c) */
734 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
735 * (Parsing C++ Command-Line Arguments)
737 static const char *quote_arg(const char *arg
)
739 /* count chars to quote */
741 int force_quotes
= 0;
744 if (!*p
) force_quotes
= 1;
746 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
750 else if (*p
== '\\') {
764 if (!force_quotes
&& n
== 0)
767 /* insert \ where necessary */
768 d
= q
= xmalloc(len
+n
+3);
773 else if (*arg
== '\\') {
775 while (*arg
== '\\') {
792 static const char *parse_interpreter(const char *cmd
)
794 static char buf
[100];
798 /* don't even try a .exe */
800 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
803 fd
= open(cmd
, O_RDONLY
);
806 n
= read(fd
, buf
, sizeof(buf
)-1);
808 if (n
< 4) /* at least '#!/x' and not error */
811 if (buf
[0] != '#' || buf
[1] != '!')
814 p
= buf
+ strcspn(buf
, "\r\n");
819 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
822 if ((opt
= strchr(p
+1, ' ')))
828 * Splits the PATH into parts.
830 static char **get_path_split(void)
832 char *p
, **path
, *envpath
= getenv("PATH");
835 if (!envpath
|| !*envpath
)
838 envpath
= xstrdup(envpath
);
844 if (*dir
) { /* not earlier, catches series of ; */
851 path
= xmalloc((n
+1)*sizeof(char *));
856 path
[i
++] = xstrdup(p
);
866 static void free_path_split(char **path
)
879 * exe_only means that we only want to detect .exe files, but not scripts
880 * (which do not have an extension)
882 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
885 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
887 if (!isexe
&& access(path
, F_OK
) == 0)
888 return xstrdup(path
);
889 path
[strlen(path
)-4] = '\0';
890 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
891 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
892 return xstrdup(path
);
897 * Determines the absolute path of cmd using the split path in path.
898 * If cmd contains a slash or backslash, no lookup is performed.
900 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
903 int len
= strlen(cmd
);
904 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
906 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
909 while (!prog
&& *path
)
910 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
915 static int env_compare(const void *a
, const void *b
)
919 return strcasecmp(*ea
, *eb
);
923 struct pinfo_t
*next
;
927 static struct pinfo_t
*pinfo
= NULL
;
928 CRITICAL_SECTION pinfo_cs
;
930 static pid_t
mingw_spawnve_fd(const char *cmd
, const char **argv
, char **env
,
932 int prepend_cmd
, int fhin
, int fhout
, int fherr
)
935 PROCESS_INFORMATION pi
;
936 struct strbuf envblk
, args
;
937 wchar_t wcmd
[MAX_PATH
], wdir
[MAX_PATH
], *wargs
;
941 /* Determine whether or not we are associated to a console */
942 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
943 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
944 FILE_ATTRIBUTE_NORMAL
, NULL
);
945 if (cons
== INVALID_HANDLE_VALUE
) {
946 /* There is no console associated with this process.
947 * Since the child is a console process, Windows
948 * would normally create a console window. But
949 * since we'll be redirecting std streams, we do
950 * not need the console.
951 * It is necessary to use DETACHED_PROCESS
952 * instead of CREATE_NO_WINDOW to make ssh
953 * recognize that it has no console.
955 flags
= DETACHED_PROCESS
;
957 /* There is already a console. If we specified
958 * DETACHED_PROCESS here, too, Windows would
959 * disassociate the child from the console.
960 * The same is true for CREATE_NO_WINDOW.
966 memset(&si
, 0, sizeof(si
));
968 si
.dwFlags
= STARTF_USESTDHANDLES
;
969 si
.hStdInput
= winansi_get_osfhandle(fhin
);
970 si
.hStdOutput
= winansi_get_osfhandle(fhout
);
971 si
.hStdError
= winansi_get_osfhandle(fherr
);
973 if (xutftowcs_path(wcmd
, cmd
) < 0)
975 if (dir
&& xutftowcs_path(wdir
, dir
) < 0)
978 /* concatenate argv, quoting args as we go */
979 strbuf_init(&args
, 0);
981 char *quoted
= (char *)quote_arg(cmd
);
982 strbuf_addstr(&args
, quoted
);
986 for (; *argv
; argv
++) {
987 char *quoted
= (char *)quote_arg(*argv
);
989 strbuf_addch(&args
, ' ');
990 strbuf_addstr(&args
, quoted
);
995 wargs
= xmalloc((2 * args
.len
+ 1) * sizeof(wchar_t));
996 xutftowcs(wargs
, args
.buf
, 2 * args
.len
+ 1);
997 strbuf_release(&args
);
1001 char **e
, **sorted_env
;
1003 for (e
= env
; *e
; e
++)
1006 /* environment must be sorted */
1007 sorted_env
= xmalloc(sizeof(*sorted_env
) * (count
+ 1));
1008 memcpy(sorted_env
, env
, sizeof(*sorted_env
) * (count
+ 1));
1009 qsort(sorted_env
, count
, sizeof(*sorted_env
), env_compare
);
1011 strbuf_init(&envblk
, 0);
1012 for (e
= sorted_env
; *e
; e
++) {
1013 strbuf_addstr(&envblk
, *e
);
1014 strbuf_addch(&envblk
, '\0');
1019 memset(&pi
, 0, sizeof(pi
));
1020 ret
= CreateProcessW(wcmd
, wargs
, NULL
, NULL
, TRUE
, flags
,
1021 env
? envblk
.buf
: NULL
, dir
? wdir
: NULL
, &si
, &pi
);
1024 strbuf_release(&envblk
);
1031 CloseHandle(pi
.hThread
);
1034 * The process ID is the human-readable identifier of the process
1035 * that we want to present in log and error messages. The handle
1036 * is not useful for this purpose. But we cannot close it, either,
1037 * because it is not possible to turn a process ID into a process
1038 * handle after the process terminated.
1039 * Keep the handle in a list for waitpid.
1041 EnterCriticalSection(&pinfo_cs
);
1043 struct pinfo_t
*info
= xmalloc(sizeof(struct pinfo_t
));
1044 info
->pid
= pi
.dwProcessId
;
1045 info
->proc
= pi
.hProcess
;
1049 LeaveCriticalSection(&pinfo_cs
);
1051 return (pid_t
)pi
.dwProcessId
;
1054 static pid_t
mingw_spawnve(const char *cmd
, const char **argv
, char **env
,
1057 return mingw_spawnve_fd(cmd
, argv
, env
, NULL
, prepend_cmd
, 0, 1, 2);
1060 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **env
,
1062 int fhin
, int fhout
, int fherr
)
1065 char **path
= get_path_split();
1066 char *prog
= path_lookup(cmd
, path
, 0);
1073 const char *interpr
= parse_interpreter(prog
);
1076 const char *argv0
= argv
[0];
1077 char *iprog
= path_lookup(interpr
, path
, 1);
1084 pid
= mingw_spawnve_fd(iprog
, argv
, env
, dir
, 1,
1085 fhin
, fhout
, fherr
);
1091 pid
= mingw_spawnve_fd(prog
, argv
, env
, dir
, 0,
1092 fhin
, fhout
, fherr
);
1095 free_path_split(path
);
1099 static int try_shell_exec(const char *cmd
, char *const *argv
, char **env
)
1101 const char *interpr
= parse_interpreter(cmd
);
1108 path
= get_path_split();
1109 prog
= path_lookup(interpr
, path
, 1);
1113 while (argv
[argc
]) argc
++;
1114 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
1115 argv2
[0] = (char *)cmd
; /* full path to the script file */
1116 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
1117 pid
= mingw_spawnve(prog
, argv2
, env
, 1);
1120 if (waitpid(pid
, &status
, 0) < 0)
1124 pid
= 1; /* indicate that we tried but failed */
1128 free_path_split(path
);
1132 static void mingw_execve(const char *cmd
, char *const *argv
, char *const *env
)
1134 /* check if git_command is a shell script */
1135 if (!try_shell_exec(cmd
, argv
, (char **)env
)) {
1138 pid
= mingw_spawnve(cmd
, (const char **)argv
, (char **)env
, 0);
1141 if (waitpid(pid
, &status
, 0) < 0)
1147 int mingw_execvp(const char *cmd
, char *const *argv
)
1149 char **path
= get_path_split();
1150 char *prog
= path_lookup(cmd
, path
, 0);
1153 mingw_execve(prog
, argv
, environ
);
1158 free_path_split(path
);
1162 int mingw_execv(const char *cmd
, char *const *argv
)
1164 mingw_execve(cmd
, argv
, environ
);
1168 int mingw_kill(pid_t pid
, int sig
)
1170 if (pid
> 0 && sig
== SIGTERM
) {
1171 HANDLE h
= OpenProcess(PROCESS_TERMINATE
, FALSE
, pid
);
1173 if (TerminateProcess(h
, -1)) {
1178 errno
= err_win_to_posix(GetLastError());
1181 } else if (pid
> 0 && sig
== 0) {
1182 HANDLE h
= OpenProcess(PROCESS_QUERY_INFORMATION
, FALSE
, pid
);
1193 static char **copy_environ(void)
1199 env
= xmalloc((i
+1)*sizeof(*env
));
1200 for (i
= 0; environ
[i
]; i
++)
1201 env
[i
] = xstrdup(environ
[i
]);
1206 void free_environ(char **env
)
1209 for (i
= 0; env
[i
]; i
++)
1214 static int lookup_env(char **env
, const char *name
, size_t nmln
)
1218 for (i
= 0; env
[i
]; i
++) {
1219 if (0 == strncmp(env
[i
], name
, nmln
)
1220 && '=' == env
[i
][nmln
])
1228 * If name contains '=', then sets the variable, otherwise it unsets it
1230 static char **env_setenv(char **env
, const char *name
)
1232 char *eq
= strchrnul(name
, '=');
1233 int i
= lookup_env(env
, name
, eq
-name
);
1237 for (i
= 0; env
[i
]; i
++)
1239 env
= xrealloc(env
, (i
+2)*sizeof(*env
));
1240 env
[i
] = xstrdup(name
);
1247 env
[i
] = xstrdup(name
);
1256 * Copies global environ and adjusts variables as specified by vars.
1258 char **make_augmented_environ(const char *const *vars
)
1260 char **env
= copy_environ();
1263 env
= env_setenv(env
, *vars
++);
1268 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1269 * that service contains a numerical port, or that it is null. It
1270 * does a simple search using gethostbyname, and returns one IPv4 host
1273 static int WSAAPI
getaddrinfo_stub(const char *node
, const char *service
,
1274 const struct addrinfo
*hints
,
1275 struct addrinfo
**res
)
1277 struct hostent
*h
= NULL
;
1278 struct addrinfo
*ai
;
1279 struct sockaddr_in
*sin
;
1282 h
= gethostbyname(node
);
1284 return WSAGetLastError();
1287 ai
= xmalloc(sizeof(struct addrinfo
));
1290 ai
->ai_family
= AF_INET
;
1291 ai
->ai_socktype
= hints
? hints
->ai_socktype
: 0;
1292 switch (ai
->ai_socktype
) {
1294 ai
->ai_protocol
= IPPROTO_TCP
;
1297 ai
->ai_protocol
= IPPROTO_UDP
;
1300 ai
->ai_protocol
= 0;
1303 ai
->ai_addrlen
= sizeof(struct sockaddr_in
);
1304 if (hints
&& (hints
->ai_flags
& AI_CANONNAME
))
1305 ai
->ai_canonname
= h
? xstrdup(h
->h_name
) : NULL
;
1307 ai
->ai_canonname
= NULL
;
1309 sin
= xmalloc(ai
->ai_addrlen
);
1310 memset(sin
, 0, ai
->ai_addrlen
);
1311 sin
->sin_family
= AF_INET
;
1312 /* Note: getaddrinfo is supposed to allow service to be a string,
1313 * which should be looked up using getservbyname. This is
1314 * currently not implemented */
1316 sin
->sin_port
= htons(atoi(service
));
1318 sin
->sin_addr
= *(struct in_addr
*)h
->h_addr
;
1319 else if (hints
&& (hints
->ai_flags
& AI_PASSIVE
))
1320 sin
->sin_addr
.s_addr
= INADDR_ANY
;
1322 sin
->sin_addr
.s_addr
= INADDR_LOOPBACK
;
1323 ai
->ai_addr
= (struct sockaddr
*)sin
;
1328 static void WSAAPI
freeaddrinfo_stub(struct addrinfo
*res
)
1330 free(res
->ai_canonname
);
1335 static int WSAAPI
getnameinfo_stub(const struct sockaddr
*sa
, socklen_t salen
,
1336 char *host
, DWORD hostlen
,
1337 char *serv
, DWORD servlen
, int flags
)
1339 const struct sockaddr_in
*sin
= (const struct sockaddr_in
*)sa
;
1340 if (sa
->sa_family
!= AF_INET
)
1345 if (host
&& hostlen
> 0) {
1346 struct hostent
*ent
= NULL
;
1347 if (!(flags
& NI_NUMERICHOST
))
1348 ent
= gethostbyaddr((const char *)&sin
->sin_addr
,
1349 sizeof(sin
->sin_addr
), AF_INET
);
1352 snprintf(host
, hostlen
, "%s", ent
->h_name
);
1353 else if (flags
& NI_NAMEREQD
)
1356 snprintf(host
, hostlen
, "%s", inet_ntoa(sin
->sin_addr
));
1359 if (serv
&& servlen
> 0) {
1360 struct servent
*ent
= NULL
;
1361 if (!(flags
& NI_NUMERICSERV
))
1362 ent
= getservbyport(sin
->sin_port
,
1363 flags
& NI_DGRAM
? "udp" : "tcp");
1366 snprintf(serv
, servlen
, "%s", ent
->s_name
);
1368 snprintf(serv
, servlen
, "%d", ntohs(sin
->sin_port
));
1374 static HMODULE ipv6_dll
= NULL
;
1375 static void (WSAAPI
*ipv6_freeaddrinfo
)(struct addrinfo
*res
);
1376 static int (WSAAPI
*ipv6_getaddrinfo
)(const char *node
, const char *service
,
1377 const struct addrinfo
*hints
,
1378 struct addrinfo
**res
);
1379 static int (WSAAPI
*ipv6_getnameinfo
)(const struct sockaddr
*sa
, socklen_t salen
,
1380 char *host
, DWORD hostlen
,
1381 char *serv
, DWORD servlen
, int flags
);
1383 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1384 * don't need to try to load that one dynamically.
1387 static void socket_cleanup(void)
1391 FreeLibrary(ipv6_dll
);
1393 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1394 ipv6_getaddrinfo
= getaddrinfo_stub
;
1395 ipv6_getnameinfo
= getnameinfo_stub
;
1398 static void ensure_socket_initialization(void)
1401 static int initialized
= 0;
1402 const char *libraries
[] = { "ws2_32.dll", "wship6.dll", NULL
};
1408 if (WSAStartup(MAKEWORD(2,2), &wsa
))
1409 die("unable to initialize winsock subsystem, error %d",
1412 for (name
= libraries
; *name
; name
++) {
1413 ipv6_dll
= LoadLibrary(*name
);
1417 ipv6_freeaddrinfo
= (void (WSAAPI
*)(struct addrinfo
*))
1418 GetProcAddress(ipv6_dll
, "freeaddrinfo");
1419 ipv6_getaddrinfo
= (int (WSAAPI
*)(const char *, const char *,
1420 const struct addrinfo
*,
1421 struct addrinfo
**))
1422 GetProcAddress(ipv6_dll
, "getaddrinfo");
1423 ipv6_getnameinfo
= (int (WSAAPI
*)(const struct sockaddr
*,
1424 socklen_t
, char *, DWORD
,
1425 char *, DWORD
, int))
1426 GetProcAddress(ipv6_dll
, "getnameinfo");
1427 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1428 FreeLibrary(ipv6_dll
);
1433 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1434 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1435 ipv6_getaddrinfo
= getaddrinfo_stub
;
1436 ipv6_getnameinfo
= getnameinfo_stub
;
1439 atexit(socket_cleanup
);
1444 int mingw_gethostname(char *name
, int namelen
)
1446 ensure_socket_initialization();
1447 return gethostname(name
, namelen
);
1450 #undef gethostbyname
1451 struct hostent
*mingw_gethostbyname(const char *host
)
1453 ensure_socket_initialization();
1454 return gethostbyname(host
);
1457 void mingw_freeaddrinfo(struct addrinfo
*res
)
1459 ipv6_freeaddrinfo(res
);
1462 int mingw_getaddrinfo(const char *node
, const char *service
,
1463 const struct addrinfo
*hints
, struct addrinfo
**res
)
1465 ensure_socket_initialization();
1466 return ipv6_getaddrinfo(node
, service
, hints
, res
);
1469 int mingw_getnameinfo(const struct sockaddr
*sa
, socklen_t salen
,
1470 char *host
, DWORD hostlen
, char *serv
, DWORD servlen
,
1473 ensure_socket_initialization();
1474 return ipv6_getnameinfo(sa
, salen
, host
, hostlen
, serv
, servlen
, flags
);
1477 int mingw_socket(int domain
, int type
, int protocol
)
1482 ensure_socket_initialization();
1483 s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
1484 if (s
== INVALID_SOCKET
) {
1486 * WSAGetLastError() values are regular BSD error codes
1487 * biased by WSABASEERR.
1488 * However, strerror() does not know about networking
1489 * specific errors, which are values beginning at 38 or so.
1490 * Therefore, we choose to leave the biased error code
1491 * in errno so that _if_ someone looks up the code somewhere,
1492 * then it is at least the number that are usually listed.
1494 errno
= WSAGetLastError();
1497 /* convert into a file descriptor */
1498 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
1500 return error("unable to make a socket file descriptor: %s",
1507 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1509 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1510 return connect(s
, sa
, sz
);
1514 int mingw_bind(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1516 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1517 return bind(s
, sa
, sz
);
1521 int mingw_setsockopt(int sockfd
, int lvl
, int optname
, void *optval
, int optlen
)
1523 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1524 return setsockopt(s
, lvl
, optname
, (const char*)optval
, optlen
);
1528 int mingw_shutdown(int sockfd
, int how
)
1530 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1531 return shutdown(s
, how
);
1535 int mingw_listen(int sockfd
, int backlog
)
1537 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1538 return listen(s
, backlog
);
1542 int mingw_accept(int sockfd1
, struct sockaddr
*sa
, socklen_t
*sz
)
1546 SOCKET s1
= (SOCKET
)_get_osfhandle(sockfd1
);
1547 SOCKET s2
= accept(s1
, sa
, sz
);
1549 /* convert into a file descriptor */
1550 if ((sockfd2
= _open_osfhandle(s2
, O_RDWR
|O_BINARY
)) < 0) {
1553 return error("unable to make a socket file descriptor: %s",
1560 int mingw_rename(const char *pold
, const char *pnew
)
1564 wchar_t wpold
[MAX_PATH
], wpnew
[MAX_PATH
];
1565 if (xutftowcs_path(wpold
, pold
) < 0 || xutftowcs_path(wpnew
, pnew
) < 0)
1569 * Try native rename() first to get errno right.
1570 * It is based on MoveFile(), which cannot overwrite existing files.
1572 if (!_wrename(wpold
, wpnew
))
1574 if (errno
!= EEXIST
)
1577 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1579 /* TODO: translate more errors */
1580 gle
= GetLastError();
1581 if (gle
== ERROR_ACCESS_DENIED
&&
1582 (attrs
= GetFileAttributesW(wpnew
)) != INVALID_FILE_ATTRIBUTES
) {
1583 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
1587 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
1588 SetFileAttributesW(wpnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
1589 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1591 gle
= GetLastError();
1592 /* revert file attributes on failure */
1593 SetFileAttributesW(wpnew
, attrs
);
1596 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
1598 * We assume that some other process had the source or
1599 * destination file open at the wrong moment and retry.
1600 * In order to give the other process a higher chance to
1601 * complete its operation, we give up our time slice now.
1602 * If we have to retry again, we do sleep a bit.
1604 Sleep(delay
[tries
]);
1608 if (gle
== ERROR_ACCESS_DENIED
&&
1609 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1610 "Should I try again?", pold
, pnew
))
1618 * Note that this doesn't return the actual pagesize, but
1619 * the allocation granularity. If future Windows specific git code
1620 * needs the real getpagesize function, we need to find another solution.
1622 int mingw_getpagesize(void)
1626 return si
.dwAllocationGranularity
;
1629 struct passwd
*getpwuid(int uid
)
1631 static char user_name
[100];
1632 static struct passwd p
;
1634 DWORD len
= sizeof(user_name
);
1635 if (!GetUserName(user_name
, &len
))
1637 p
.pw_name
= user_name
;
1638 p
.pw_gecos
= "unknown";
1643 static HANDLE timer_event
;
1644 static HANDLE timer_thread
;
1645 static int timer_interval
;
1646 static int one_shot
;
1647 static sig_handler_t timer_fn
= SIG_DFL
, sigint_fn
= SIG_DFL
;
1649 /* The timer works like this:
1650 * The thread, ticktack(), is a trivial routine that most of the time
1651 * only waits to receive the signal to terminate. The main thread tells
1652 * the thread to terminate by setting the timer_event to the signalled
1654 * But ticktack() interrupts the wait state after the timer's interval
1655 * length to call the signal handler.
1658 static unsigned __stdcall
ticktack(void *dummy
)
1660 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1661 mingw_raise(SIGALRM
);
1668 static int start_timer_thread(void)
1670 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1672 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1674 return errno
= ENOMEM
,
1675 error("cannot start timer thread");
1677 return errno
= ENOMEM
,
1678 error("cannot allocate resources for timer");
1682 static void stop_timer_thread(void)
1685 SetEvent(timer_event
); /* tell thread to terminate */
1687 int rc
= WaitForSingleObject(timer_thread
, 1000);
1688 if (rc
== WAIT_TIMEOUT
)
1689 error("timer thread did not terminate timely");
1690 else if (rc
!= WAIT_OBJECT_0
)
1691 error("waiting for timer thread failed: %lu",
1693 CloseHandle(timer_thread
);
1696 CloseHandle(timer_event
);
1698 timer_thread
= NULL
;
1701 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1703 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1706 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1708 static const struct timeval zero
;
1709 static int atexit_done
;
1712 return errno
= EINVAL
,
1713 error("setitimer param 3 != NULL not implemented");
1714 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1715 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1716 return errno
= EINVAL
,
1717 error("setitimer: it_interval must be zero or eq it_value");
1720 stop_timer_thread();
1722 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1723 is_timeval_eq(&in
->it_interval
, &zero
))
1726 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1727 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1729 atexit(stop_timer_thread
);
1732 return start_timer_thread();
1735 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1738 return errno
= EINVAL
,
1739 error("sigaction only implemented for SIGALRM");
1741 return errno
= EINVAL
,
1742 error("sigaction: param 3 != NULL not implemented");
1744 timer_fn
= in
->sa_handler
;
1749 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1761 sigint_fn
= handler
;
1765 return signal(sig
, handler
);
1772 int mingw_raise(int sig
)
1776 if (timer_fn
== SIG_DFL
) {
1777 if (isatty(STDERR_FILENO
))
1778 fputs("Alarm clock\n", stderr
);
1779 exit(128 + SIGALRM
);
1780 } else if (timer_fn
!= SIG_IGN
)
1785 if (sigint_fn
== SIG_DFL
)
1787 else if (sigint_fn
!= SIG_IGN
)
1797 static const char *make_backslash_path(const char *path
)
1799 static char buf
[PATH_MAX
+ 1];
1802 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1803 die("Too long path: %.*s", 60, path
);
1805 for (c
= buf
; *c
; c
++) {
1812 void mingw_open_html(const char *unixpath
)
1814 const char *htmlpath
= make_backslash_path(unixpath
);
1815 typedef HINSTANCE (WINAPI
*T
)(HWND
, const char *,
1816 const char *, const char *, const char *, INT
);
1821 shell32
= LoadLibrary("shell32.dll");
1823 die("cannot load shell32.dll");
1824 ShellExecute
= (T
)GetProcAddress(shell32
, "ShellExecuteA");
1826 die("cannot run browser");
1828 printf("Launching default browser to display HTML ...\n");
1829 r
= (int)ShellExecute(NULL
, "open", htmlpath
, NULL
, "\\", SW_SHOWNORMAL
);
1830 FreeLibrary(shell32
);
1831 /* see the MSDN documentation referring to the result codes here */
1833 die("failed to launch browser for %.*s", MAX_PATH
, unixpath
);
1837 int link(const char *oldpath
, const char *newpath
)
1839 typedef BOOL (WINAPI
*T
)(LPCWSTR
, LPCWSTR
, LPSECURITY_ATTRIBUTES
);
1840 static T create_hard_link
= NULL
;
1841 wchar_t woldpath
[MAX_PATH
], wnewpath
[MAX_PATH
];
1842 if (xutftowcs_path(woldpath
, oldpath
) < 0 ||
1843 xutftowcs_path(wnewpath
, newpath
) < 0)
1846 if (!create_hard_link
) {
1847 create_hard_link
= (T
) GetProcAddress(
1848 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1849 if (!create_hard_link
)
1850 create_hard_link
= (T
)-1;
1852 if (create_hard_link
== (T
)-1) {
1856 if (!create_hard_link(wnewpath
, woldpath
, NULL
)) {
1857 errno
= err_win_to_posix(GetLastError());
1863 pid_t
waitpid(pid_t pid
, int *status
, int options
)
1865 HANDLE h
= OpenProcess(SYNCHRONIZE
| PROCESS_QUERY_INFORMATION
,
1872 if (pid
> 0 && options
& WNOHANG
) {
1873 if (WAIT_OBJECT_0
!= WaitForSingleObject(h
, 0)) {
1877 options
&= ~WNOHANG
;
1881 struct pinfo_t
**ppinfo
;
1882 if (WaitForSingleObject(h
, INFINITE
) != WAIT_OBJECT_0
) {
1888 GetExitCodeProcess(h
, (LPDWORD
)status
);
1890 EnterCriticalSection(&pinfo_cs
);
1894 struct pinfo_t
*info
= *ppinfo
;
1895 if (info
->pid
== pid
) {
1896 CloseHandle(info
->proc
);
1897 *ppinfo
= info
->next
;
1901 ppinfo
= &info
->next
;
1904 LeaveCriticalSection(&pinfo_cs
);
1915 int xutftowcsn(wchar_t *wcs
, const char *utfs
, size_t wcslen
, int utflen
)
1917 int upos
= 0, wpos
= 0;
1918 const unsigned char *utf
= (const unsigned char*) utfs
;
1919 if (!utf
|| !wcs
|| wcslen
< 1) {
1923 /* reserve space for \0 */
1928 while (upos
< utflen
) {
1929 int c
= utf
[upos
++] & 0xff;
1930 if (utflen
== INT_MAX
&& c
== 0)
1933 if (wpos
>= wcslen
) {
1942 } else if (c
>= 0xc2 && c
< 0xe0 && upos
< utflen
&&
1943 (utf
[upos
] & 0xc0) == 0x80) {
1945 c
= ((c
& 0x1f) << 6);
1946 c
|= (utf
[upos
++] & 0x3f);
1948 } else if (c
>= 0xe0 && c
< 0xf0 && upos
+ 1 < utflen
&&
1949 !(c
== 0xe0 && utf
[upos
] < 0xa0) && /* over-long encoding */
1950 (utf
[upos
] & 0xc0) == 0x80 &&
1951 (utf
[upos
+ 1] & 0xc0) == 0x80) {
1953 c
= ((c
& 0x0f) << 12);
1954 c
|= ((utf
[upos
++] & 0x3f) << 6);
1955 c
|= (utf
[upos
++] & 0x3f);
1957 } else if (c
>= 0xf0 && c
< 0xf5 && upos
+ 2 < utflen
&&
1958 wpos
+ 1 < wcslen
&&
1959 !(c
== 0xf0 && utf
[upos
] < 0x90) && /* over-long encoding */
1960 !(c
== 0xf4 && utf
[upos
] >= 0x90) && /* > \u10ffff */
1961 (utf
[upos
] & 0xc0) == 0x80 &&
1962 (utf
[upos
+ 1] & 0xc0) == 0x80 &&
1963 (utf
[upos
+ 2] & 0xc0) == 0x80) {
1964 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
1965 c
= ((c
& 0x07) << 18);
1966 c
|= ((utf
[upos
++] & 0x3f) << 12);
1967 c
|= ((utf
[upos
++] & 0x3f) << 6);
1968 c
|= (utf
[upos
++] & 0x3f);
1970 wcs
[wpos
++] = 0xd800 | (c
>> 10);
1971 wcs
[wpos
++] = 0xdc00 | (c
& 0x3ff);
1972 } else if (c
>= 0xa0) {
1973 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
1976 /* invalid utf-8 byte, non-printable unicode: convert to hex */
1977 static const char *hex
= "0123456789abcdef";
1978 wcs
[wpos
++] = hex
[c
>> 4];
1980 wcs
[wpos
++] = hex
[c
& 0x0f];
1987 int xwcstoutf(char *utf
, const wchar_t *wcs
, size_t utflen
)
1989 if (!wcs
|| !utf
|| utflen
< 1) {
1993 utflen
= WideCharToMultiByte(CP_UTF8
, 0, wcs
, -1, utf
, utflen
, NULL
, NULL
);
2001 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2002 * mingw startup code, see init.c in mingw runtime).
2006 void mingw_startup()
2008 /* copy executable name to argv[0] */
2009 __argv
[0] = xstrdup(_pgmptr
);
2011 /* initialize critical section for waitpid pinfo_t list */
2012 InitializeCriticalSection(&pinfo_cs
);
2014 /* set up default file mode and file modes for stdin/out/err */
2016 _setmode(_fileno(stdin
), _O_BINARY
);
2017 _setmode(_fileno(stdout
), _O_BINARY
);
2018 _setmode(_fileno(stderr
), _O_BINARY
);
2020 /* initialize Unicode console */