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 * Compare environment entries by key (i.e. stopping at '=' or '\0').
719 static int compareenv(const void *v1
, const void *v2
)
721 const char *e1
= *(const char**)v1
;
722 const char *e2
= *(const char**)v2
;
727 c1
= (c1
== '=') ? 0 : tolower(c1
);
728 c2
= (c2
== '=') ? 0 : tolower(c2
);
738 static int bsearchenv(char **env
, const char *name
, size_t size
)
740 unsigned low
= 0, high
= size
;
742 unsigned mid
= low
+ ((high
- low
) >> 1);
743 int cmp
= compareenv(&env
[mid
], &name
);
751 return ~low
; /* not found, return 1's complement of insert position */
755 * If name contains '=', then sets the variable, otherwise it unsets it
756 * Size includes the terminating NULL. Env must have room for size + 1 entries
757 * (in case of insert). Returns the new size. Optionally frees removed entries.
759 static int do_putenv(char **env
, const char *name
, int size
, int free_old
)
761 int i
= bsearchenv(env
, name
, size
- 1);
763 /* optionally free removed / replaced entry */
764 if (i
>= 0 && free_old
)
767 if (strchr(name
, '=')) {
768 /* if new value ('key=value') is specified, insert or replace entry */
771 memmove(&env
[i
+ 1], &env
[i
], (size
- i
) * sizeof(char*));
774 env
[i
] = (char*) name
;
776 /* otherwise ('key') remove existing entry */
778 memmove(&env
[i
], &env
[i
+ 1], (size
- i
) * sizeof(char*));
783 /* used number of elements of environ array, including terminating NULL */
784 static int environ_size
= 0;
785 /* allocated size of environ array, in bytes */
786 static int environ_alloc
= 0;
788 static char *do_getenv(const char *name
)
791 int pos
= bsearchenv(environ
, name
, environ_size
- 1);
794 value
= strchr(environ
[pos
], '=');
795 return value
? &value
[1] : NULL
;
798 char *mingw_getenv(const char *name
)
800 char *result
= do_getenv(name
);
801 if (!result
&& !strcmp(name
, "TMPDIR")) {
802 /* on Windows it is TMP and TEMP */
803 result
= do_getenv("TMP");
805 result
= do_getenv("TEMP");
807 else if (!result
&& !strcmp(name
, "TERM")) {
808 /* simulate TERM to enable auto-color (see color.c) */
814 int mingw_putenv(const char *namevalue
)
816 ALLOC_GROW(environ
, (environ_size
+ 1) * sizeof(char*), environ_alloc
);
817 environ_size
= do_putenv(environ
, namevalue
, environ_size
, 1);
822 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
823 * (Parsing C++ Command-Line Arguments)
825 static const char *quote_arg(const char *arg
)
827 /* count chars to quote */
829 int force_quotes
= 0;
832 if (!*p
) force_quotes
= 1;
834 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
838 else if (*p
== '\\') {
852 if (!force_quotes
&& n
== 0)
855 /* insert \ where necessary */
856 d
= q
= xmalloc(len
+n
+3);
861 else if (*arg
== '\\') {
863 while (*arg
== '\\') {
880 static const char *parse_interpreter(const char *cmd
)
882 static char buf
[100];
886 /* don't even try a .exe */
888 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
891 fd
= open(cmd
, O_RDONLY
);
894 n
= read(fd
, buf
, sizeof(buf
)-1);
896 if (n
< 4) /* at least '#!/x' and not error */
899 if (buf
[0] != '#' || buf
[1] != '!')
902 p
= buf
+ strcspn(buf
, "\r\n");
907 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
910 if ((opt
= strchr(p
+1, ' ')))
916 * Splits the PATH into parts.
918 static char **get_path_split(void)
920 char *p
, **path
, *envpath
= getenv("PATH");
923 if (!envpath
|| !*envpath
)
926 envpath
= xstrdup(envpath
);
932 if (*dir
) { /* not earlier, catches series of ; */
939 path
= xmalloc((n
+1)*sizeof(char *));
944 path
[i
++] = xstrdup(p
);
954 static void free_path_split(char **path
)
967 * exe_only means that we only want to detect .exe files, but not scripts
968 * (which do not have an extension)
970 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
973 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
975 if (!isexe
&& access(path
, F_OK
) == 0)
976 return xstrdup(path
);
977 path
[strlen(path
)-4] = '\0';
978 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
979 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
980 return xstrdup(path
);
985 * Determines the absolute path of cmd using the split path in path.
986 * If cmd contains a slash or backslash, no lookup is performed.
988 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
991 int len
= strlen(cmd
);
992 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
994 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
997 while (!prog
&& *path
)
998 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
1004 * Create environment block suitable for CreateProcess. Merges current
1005 * process environment and the supplied environment changes.
1007 static wchar_t *make_environment_block(char **deltaenv
)
1009 wchar_t *wenvblk
= NULL
;
1011 int i
= 0, size
= environ_size
, wenvsz
= 0, wenvpos
= 0;
1013 while (deltaenv
&& deltaenv
[i
])
1016 /* copy the environment, leaving space for changes */
1017 tmpenv
= xmalloc((size
+ i
) * sizeof(char*));
1018 memcpy(tmpenv
, environ
, size
* sizeof(char*));
1020 /* merge supplied environment changes into the temporary environment */
1021 for (i
= 0; deltaenv
&& deltaenv
[i
]; i
++)
1022 size
= do_putenv(tmpenv
, deltaenv
[i
], size
, 0);
1024 /* create environment block from temporary environment */
1025 for (i
= 0; tmpenv
[i
]; i
++) {
1026 size
= 2 * strlen(tmpenv
[i
]) + 2; /* +2 for final \0 */
1027 ALLOC_GROW(wenvblk
, (wenvpos
+ size
) * sizeof(wchar_t), wenvsz
);
1028 wenvpos
+= xutftowcs(&wenvblk
[wenvpos
], tmpenv
[i
], size
) + 1;
1030 /* add final \0 terminator */
1031 wenvblk
[wenvpos
] = 0;
1037 struct pinfo_t
*next
;
1041 static struct pinfo_t
*pinfo
= NULL
;
1042 CRITICAL_SECTION pinfo_cs
;
1044 static pid_t
mingw_spawnve_fd(const char *cmd
, const char **argv
, char **deltaenv
,
1046 int prepend_cmd
, int fhin
, int fhout
, int fherr
)
1049 PROCESS_INFORMATION pi
;
1051 wchar_t wcmd
[MAX_PATH
], wdir
[MAX_PATH
], *wargs
, *wenvblk
= NULL
;
1052 unsigned flags
= CREATE_UNICODE_ENVIRONMENT
;
1055 /* Determine whether or not we are associated to a console */
1056 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
1057 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
1058 FILE_ATTRIBUTE_NORMAL
, NULL
);
1059 if (cons
== INVALID_HANDLE_VALUE
) {
1060 /* There is no console associated with this process.
1061 * Since the child is a console process, Windows
1062 * would normally create a console window. But
1063 * since we'll be redirecting std streams, we do
1064 * not need the console.
1065 * It is necessary to use DETACHED_PROCESS
1066 * instead of CREATE_NO_WINDOW to make ssh
1067 * recognize that it has no console.
1069 flags
|= DETACHED_PROCESS
;
1071 /* There is already a console. If we specified
1072 * DETACHED_PROCESS here, too, Windows would
1073 * disassociate the child from the console.
1074 * The same is true for CREATE_NO_WINDOW.
1079 memset(&si
, 0, sizeof(si
));
1081 si
.dwFlags
= STARTF_USESTDHANDLES
;
1082 si
.hStdInput
= winansi_get_osfhandle(fhin
);
1083 si
.hStdOutput
= winansi_get_osfhandle(fhout
);
1084 si
.hStdError
= winansi_get_osfhandle(fherr
);
1086 if (xutftowcs_path(wcmd
, cmd
) < 0)
1088 if (dir
&& xutftowcs_path(wdir
, dir
) < 0)
1091 /* concatenate argv, quoting args as we go */
1092 strbuf_init(&args
, 0);
1094 char *quoted
= (char *)quote_arg(cmd
);
1095 strbuf_addstr(&args
, quoted
);
1099 for (; *argv
; argv
++) {
1100 char *quoted
= (char *)quote_arg(*argv
);
1102 strbuf_addch(&args
, ' ');
1103 strbuf_addstr(&args
, quoted
);
1104 if (quoted
!= *argv
)
1108 wargs
= xmalloc((2 * args
.len
+ 1) * sizeof(wchar_t));
1109 xutftowcs(wargs
, args
.buf
, 2 * args
.len
+ 1);
1110 strbuf_release(&args
);
1112 wenvblk
= make_environment_block(deltaenv
);
1114 memset(&pi
, 0, sizeof(pi
));
1115 ret
= CreateProcessW(wcmd
, wargs
, NULL
, NULL
, TRUE
, flags
,
1116 wenvblk
, dir
? wdir
: NULL
, &si
, &pi
);
1125 CloseHandle(pi
.hThread
);
1128 * The process ID is the human-readable identifier of the process
1129 * that we want to present in log and error messages. The handle
1130 * is not useful for this purpose. But we cannot close it, either,
1131 * because it is not possible to turn a process ID into a process
1132 * handle after the process terminated.
1133 * Keep the handle in a list for waitpid.
1135 EnterCriticalSection(&pinfo_cs
);
1137 struct pinfo_t
*info
= xmalloc(sizeof(struct pinfo_t
));
1138 info
->pid
= pi
.dwProcessId
;
1139 info
->proc
= pi
.hProcess
;
1143 LeaveCriticalSection(&pinfo_cs
);
1145 return (pid_t
)pi
.dwProcessId
;
1148 static pid_t
mingw_spawnv(const char *cmd
, const char **argv
, int prepend_cmd
)
1150 return mingw_spawnve_fd(cmd
, argv
, NULL
, NULL
, prepend_cmd
, 0, 1, 2);
1153 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **deltaenv
,
1155 int fhin
, int fhout
, int fherr
)
1158 char **path
= get_path_split();
1159 char *prog
= path_lookup(cmd
, path
, 0);
1166 const char *interpr
= parse_interpreter(prog
);
1169 const char *argv0
= argv
[0];
1170 char *iprog
= path_lookup(interpr
, path
, 1);
1177 pid
= mingw_spawnve_fd(iprog
, argv
, deltaenv
, dir
, 1,
1178 fhin
, fhout
, fherr
);
1184 pid
= mingw_spawnve_fd(prog
, argv
, deltaenv
, dir
, 0,
1185 fhin
, fhout
, fherr
);
1188 free_path_split(path
);
1192 static int try_shell_exec(const char *cmd
, char *const *argv
)
1194 const char *interpr
= parse_interpreter(cmd
);
1201 path
= get_path_split();
1202 prog
= path_lookup(interpr
, path
, 1);
1206 while (argv
[argc
]) argc
++;
1207 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
1208 argv2
[0] = (char *)cmd
; /* full path to the script file */
1209 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
1210 pid
= mingw_spawnv(prog
, argv2
, 1);
1213 if (waitpid(pid
, &status
, 0) < 0)
1217 pid
= 1; /* indicate that we tried but failed */
1221 free_path_split(path
);
1225 int mingw_execv(const char *cmd
, char *const *argv
)
1227 /* check if git_command is a shell script */
1228 if (!try_shell_exec(cmd
, argv
)) {
1231 pid
= mingw_spawnv(cmd
, (const char **)argv
, 0);
1234 if (waitpid(pid
, &status
, 0) < 0)
1241 int mingw_execvp(const char *cmd
, char *const *argv
)
1243 char **path
= get_path_split();
1244 char *prog
= path_lookup(cmd
, path
, 0);
1247 mingw_execv(prog
, argv
);
1252 free_path_split(path
);
1256 int mingw_kill(pid_t pid
, int sig
)
1258 if (pid
> 0 && sig
== SIGTERM
) {
1259 HANDLE h
= OpenProcess(PROCESS_TERMINATE
, FALSE
, pid
);
1261 if (TerminateProcess(h
, -1)) {
1266 errno
= err_win_to_posix(GetLastError());
1269 } else if (pid
> 0 && sig
== 0) {
1270 HANDLE h
= OpenProcess(PROCESS_QUERY_INFORMATION
, FALSE
, pid
);
1282 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1283 * that service contains a numerical port, or that it is null. It
1284 * does a simple search using gethostbyname, and returns one IPv4 host
1287 static int WSAAPI
getaddrinfo_stub(const char *node
, const char *service
,
1288 const struct addrinfo
*hints
,
1289 struct addrinfo
**res
)
1291 struct hostent
*h
= NULL
;
1292 struct addrinfo
*ai
;
1293 struct sockaddr_in
*sin
;
1296 h
= gethostbyname(node
);
1298 return WSAGetLastError();
1301 ai
= xmalloc(sizeof(struct addrinfo
));
1304 ai
->ai_family
= AF_INET
;
1305 ai
->ai_socktype
= hints
? hints
->ai_socktype
: 0;
1306 switch (ai
->ai_socktype
) {
1308 ai
->ai_protocol
= IPPROTO_TCP
;
1311 ai
->ai_protocol
= IPPROTO_UDP
;
1314 ai
->ai_protocol
= 0;
1317 ai
->ai_addrlen
= sizeof(struct sockaddr_in
);
1318 if (hints
&& (hints
->ai_flags
& AI_CANONNAME
))
1319 ai
->ai_canonname
= h
? xstrdup(h
->h_name
) : NULL
;
1321 ai
->ai_canonname
= NULL
;
1323 sin
= xmalloc(ai
->ai_addrlen
);
1324 memset(sin
, 0, ai
->ai_addrlen
);
1325 sin
->sin_family
= AF_INET
;
1326 /* Note: getaddrinfo is supposed to allow service to be a string,
1327 * which should be looked up using getservbyname. This is
1328 * currently not implemented */
1330 sin
->sin_port
= htons(atoi(service
));
1332 sin
->sin_addr
= *(struct in_addr
*)h
->h_addr
;
1333 else if (hints
&& (hints
->ai_flags
& AI_PASSIVE
))
1334 sin
->sin_addr
.s_addr
= INADDR_ANY
;
1336 sin
->sin_addr
.s_addr
= INADDR_LOOPBACK
;
1337 ai
->ai_addr
= (struct sockaddr
*)sin
;
1342 static void WSAAPI
freeaddrinfo_stub(struct addrinfo
*res
)
1344 free(res
->ai_canonname
);
1349 static int WSAAPI
getnameinfo_stub(const struct sockaddr
*sa
, socklen_t salen
,
1350 char *host
, DWORD hostlen
,
1351 char *serv
, DWORD servlen
, int flags
)
1353 const struct sockaddr_in
*sin
= (const struct sockaddr_in
*)sa
;
1354 if (sa
->sa_family
!= AF_INET
)
1359 if (host
&& hostlen
> 0) {
1360 struct hostent
*ent
= NULL
;
1361 if (!(flags
& NI_NUMERICHOST
))
1362 ent
= gethostbyaddr((const char *)&sin
->sin_addr
,
1363 sizeof(sin
->sin_addr
), AF_INET
);
1366 snprintf(host
, hostlen
, "%s", ent
->h_name
);
1367 else if (flags
& NI_NAMEREQD
)
1370 snprintf(host
, hostlen
, "%s", inet_ntoa(sin
->sin_addr
));
1373 if (serv
&& servlen
> 0) {
1374 struct servent
*ent
= NULL
;
1375 if (!(flags
& NI_NUMERICSERV
))
1376 ent
= getservbyport(sin
->sin_port
,
1377 flags
& NI_DGRAM
? "udp" : "tcp");
1380 snprintf(serv
, servlen
, "%s", ent
->s_name
);
1382 snprintf(serv
, servlen
, "%d", ntohs(sin
->sin_port
));
1388 static HMODULE ipv6_dll
= NULL
;
1389 static void (WSAAPI
*ipv6_freeaddrinfo
)(struct addrinfo
*res
);
1390 static int (WSAAPI
*ipv6_getaddrinfo
)(const char *node
, const char *service
,
1391 const struct addrinfo
*hints
,
1392 struct addrinfo
**res
);
1393 static int (WSAAPI
*ipv6_getnameinfo
)(const struct sockaddr
*sa
, socklen_t salen
,
1394 char *host
, DWORD hostlen
,
1395 char *serv
, DWORD servlen
, int flags
);
1397 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1398 * don't need to try to load that one dynamically.
1401 static void socket_cleanup(void)
1405 FreeLibrary(ipv6_dll
);
1407 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1408 ipv6_getaddrinfo
= getaddrinfo_stub
;
1409 ipv6_getnameinfo
= getnameinfo_stub
;
1412 static void ensure_socket_initialization(void)
1415 static int initialized
= 0;
1416 const char *libraries
[] = { "ws2_32.dll", "wship6.dll", NULL
};
1422 if (WSAStartup(MAKEWORD(2,2), &wsa
))
1423 die("unable to initialize winsock subsystem, error %d",
1426 for (name
= libraries
; *name
; name
++) {
1427 ipv6_dll
= LoadLibrary(*name
);
1431 ipv6_freeaddrinfo
= (void (WSAAPI
*)(struct addrinfo
*))
1432 GetProcAddress(ipv6_dll
, "freeaddrinfo");
1433 ipv6_getaddrinfo
= (int (WSAAPI
*)(const char *, const char *,
1434 const struct addrinfo
*,
1435 struct addrinfo
**))
1436 GetProcAddress(ipv6_dll
, "getaddrinfo");
1437 ipv6_getnameinfo
= (int (WSAAPI
*)(const struct sockaddr
*,
1438 socklen_t
, char *, DWORD
,
1439 char *, DWORD
, int))
1440 GetProcAddress(ipv6_dll
, "getnameinfo");
1441 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1442 FreeLibrary(ipv6_dll
);
1447 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1448 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1449 ipv6_getaddrinfo
= getaddrinfo_stub
;
1450 ipv6_getnameinfo
= getnameinfo_stub
;
1453 atexit(socket_cleanup
);
1458 int mingw_gethostname(char *name
, int namelen
)
1460 ensure_socket_initialization();
1461 return gethostname(name
, namelen
);
1464 #undef gethostbyname
1465 struct hostent
*mingw_gethostbyname(const char *host
)
1467 ensure_socket_initialization();
1468 return gethostbyname(host
);
1471 void mingw_freeaddrinfo(struct addrinfo
*res
)
1473 ipv6_freeaddrinfo(res
);
1476 int mingw_getaddrinfo(const char *node
, const char *service
,
1477 const struct addrinfo
*hints
, struct addrinfo
**res
)
1479 ensure_socket_initialization();
1480 return ipv6_getaddrinfo(node
, service
, hints
, res
);
1483 int mingw_getnameinfo(const struct sockaddr
*sa
, socklen_t salen
,
1484 char *host
, DWORD hostlen
, char *serv
, DWORD servlen
,
1487 ensure_socket_initialization();
1488 return ipv6_getnameinfo(sa
, salen
, host
, hostlen
, serv
, servlen
, flags
);
1491 int mingw_socket(int domain
, int type
, int protocol
)
1496 ensure_socket_initialization();
1497 s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
1498 if (s
== INVALID_SOCKET
) {
1500 * WSAGetLastError() values are regular BSD error codes
1501 * biased by WSABASEERR.
1502 * However, strerror() does not know about networking
1503 * specific errors, which are values beginning at 38 or so.
1504 * Therefore, we choose to leave the biased error code
1505 * in errno so that _if_ someone looks up the code somewhere,
1506 * then it is at least the number that are usually listed.
1508 errno
= WSAGetLastError();
1511 /* convert into a file descriptor */
1512 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
1514 return error("unable to make a socket file descriptor: %s",
1521 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1523 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1524 return connect(s
, sa
, sz
);
1528 int mingw_bind(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1530 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1531 return bind(s
, sa
, sz
);
1535 int mingw_setsockopt(int sockfd
, int lvl
, int optname
, void *optval
, int optlen
)
1537 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1538 return setsockopt(s
, lvl
, optname
, (const char*)optval
, optlen
);
1542 int mingw_shutdown(int sockfd
, int how
)
1544 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1545 return shutdown(s
, how
);
1549 int mingw_listen(int sockfd
, int backlog
)
1551 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1552 return listen(s
, backlog
);
1556 int mingw_accept(int sockfd1
, struct sockaddr
*sa
, socklen_t
*sz
)
1560 SOCKET s1
= (SOCKET
)_get_osfhandle(sockfd1
);
1561 SOCKET s2
= accept(s1
, sa
, sz
);
1563 /* convert into a file descriptor */
1564 if ((sockfd2
= _open_osfhandle(s2
, O_RDWR
|O_BINARY
)) < 0) {
1567 return error("unable to make a socket file descriptor: %s",
1574 int mingw_rename(const char *pold
, const char *pnew
)
1578 wchar_t wpold
[MAX_PATH
], wpnew
[MAX_PATH
];
1579 if (xutftowcs_path(wpold
, pold
) < 0 || xutftowcs_path(wpnew
, pnew
) < 0)
1583 * Try native rename() first to get errno right.
1584 * It is based on MoveFile(), which cannot overwrite existing files.
1586 if (!_wrename(wpold
, wpnew
))
1588 if (errno
!= EEXIST
)
1591 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1593 /* TODO: translate more errors */
1594 gle
= GetLastError();
1595 if (gle
== ERROR_ACCESS_DENIED
&&
1596 (attrs
= GetFileAttributesW(wpnew
)) != INVALID_FILE_ATTRIBUTES
) {
1597 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
1601 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
1602 SetFileAttributesW(wpnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
1603 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1605 gle
= GetLastError();
1606 /* revert file attributes on failure */
1607 SetFileAttributesW(wpnew
, attrs
);
1610 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
1612 * We assume that some other process had the source or
1613 * destination file open at the wrong moment and retry.
1614 * In order to give the other process a higher chance to
1615 * complete its operation, we give up our time slice now.
1616 * If we have to retry again, we do sleep a bit.
1618 Sleep(delay
[tries
]);
1622 if (gle
== ERROR_ACCESS_DENIED
&&
1623 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1624 "Should I try again?", pold
, pnew
))
1632 * Note that this doesn't return the actual pagesize, but
1633 * the allocation granularity. If future Windows specific git code
1634 * needs the real getpagesize function, we need to find another solution.
1636 int mingw_getpagesize(void)
1640 return si
.dwAllocationGranularity
;
1643 struct passwd
*getpwuid(int uid
)
1645 static char user_name
[100];
1646 static struct passwd p
;
1648 DWORD len
= sizeof(user_name
);
1649 if (!GetUserName(user_name
, &len
))
1651 p
.pw_name
= user_name
;
1652 p
.pw_gecos
= "unknown";
1657 static HANDLE timer_event
;
1658 static HANDLE timer_thread
;
1659 static int timer_interval
;
1660 static int one_shot
;
1661 static sig_handler_t timer_fn
= SIG_DFL
, sigint_fn
= SIG_DFL
;
1663 /* The timer works like this:
1664 * The thread, ticktack(), is a trivial routine that most of the time
1665 * only waits to receive the signal to terminate. The main thread tells
1666 * the thread to terminate by setting the timer_event to the signalled
1668 * But ticktack() interrupts the wait state after the timer's interval
1669 * length to call the signal handler.
1672 static unsigned __stdcall
ticktack(void *dummy
)
1674 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1675 mingw_raise(SIGALRM
);
1682 static int start_timer_thread(void)
1684 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1686 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1688 return errno
= ENOMEM
,
1689 error("cannot start timer thread");
1691 return errno
= ENOMEM
,
1692 error("cannot allocate resources for timer");
1696 static void stop_timer_thread(void)
1699 SetEvent(timer_event
); /* tell thread to terminate */
1701 int rc
= WaitForSingleObject(timer_thread
, 1000);
1702 if (rc
== WAIT_TIMEOUT
)
1703 error("timer thread did not terminate timely");
1704 else if (rc
!= WAIT_OBJECT_0
)
1705 error("waiting for timer thread failed: %lu",
1707 CloseHandle(timer_thread
);
1710 CloseHandle(timer_event
);
1712 timer_thread
= NULL
;
1715 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1717 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1720 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1722 static const struct timeval zero
;
1723 static int atexit_done
;
1726 return errno
= EINVAL
,
1727 error("setitimer param 3 != NULL not implemented");
1728 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1729 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1730 return errno
= EINVAL
,
1731 error("setitimer: it_interval must be zero or eq it_value");
1734 stop_timer_thread();
1736 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1737 is_timeval_eq(&in
->it_interval
, &zero
))
1740 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1741 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1743 atexit(stop_timer_thread
);
1746 return start_timer_thread();
1749 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1752 return errno
= EINVAL
,
1753 error("sigaction only implemented for SIGALRM");
1755 return errno
= EINVAL
,
1756 error("sigaction: param 3 != NULL not implemented");
1758 timer_fn
= in
->sa_handler
;
1763 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1775 sigint_fn
= handler
;
1779 return signal(sig
, handler
);
1786 int mingw_raise(int sig
)
1790 if (timer_fn
== SIG_DFL
) {
1791 if (isatty(STDERR_FILENO
))
1792 fputs("Alarm clock\n", stderr
);
1793 exit(128 + SIGALRM
);
1794 } else if (timer_fn
!= SIG_IGN
)
1799 if (sigint_fn
== SIG_DFL
)
1801 else if (sigint_fn
!= SIG_IGN
)
1811 static const char *make_backslash_path(const char *path
)
1813 static char buf
[PATH_MAX
+ 1];
1816 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1817 die("Too long path: %.*s", 60, path
);
1819 for (c
= buf
; *c
; c
++) {
1826 void mingw_open_html(const char *unixpath
)
1828 const char *htmlpath
= make_backslash_path(unixpath
);
1829 typedef HINSTANCE (WINAPI
*T
)(HWND
, const char *,
1830 const char *, const char *, const char *, INT
);
1835 shell32
= LoadLibrary("shell32.dll");
1837 die("cannot load shell32.dll");
1838 ShellExecute
= (T
)GetProcAddress(shell32
, "ShellExecuteA");
1840 die("cannot run browser");
1842 printf("Launching default browser to display HTML ...\n");
1843 r
= (int)ShellExecute(NULL
, "open", htmlpath
, NULL
, "\\", SW_SHOWNORMAL
);
1844 FreeLibrary(shell32
);
1845 /* see the MSDN documentation referring to the result codes here */
1847 die("failed to launch browser for %.*s", MAX_PATH
, unixpath
);
1851 int link(const char *oldpath
, const char *newpath
)
1853 typedef BOOL (WINAPI
*T
)(LPCWSTR
, LPCWSTR
, LPSECURITY_ATTRIBUTES
);
1854 static T create_hard_link
= NULL
;
1855 wchar_t woldpath
[MAX_PATH
], wnewpath
[MAX_PATH
];
1856 if (xutftowcs_path(woldpath
, oldpath
) < 0 ||
1857 xutftowcs_path(wnewpath
, newpath
) < 0)
1860 if (!create_hard_link
) {
1861 create_hard_link
= (T
) GetProcAddress(
1862 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1863 if (!create_hard_link
)
1864 create_hard_link
= (T
)-1;
1866 if (create_hard_link
== (T
)-1) {
1870 if (!create_hard_link(wnewpath
, woldpath
, NULL
)) {
1871 errno
= err_win_to_posix(GetLastError());
1877 pid_t
waitpid(pid_t pid
, int *status
, int options
)
1879 HANDLE h
= OpenProcess(SYNCHRONIZE
| PROCESS_QUERY_INFORMATION
,
1886 if (pid
> 0 && options
& WNOHANG
) {
1887 if (WAIT_OBJECT_0
!= WaitForSingleObject(h
, 0)) {
1891 options
&= ~WNOHANG
;
1895 struct pinfo_t
**ppinfo
;
1896 if (WaitForSingleObject(h
, INFINITE
) != WAIT_OBJECT_0
) {
1902 GetExitCodeProcess(h
, (LPDWORD
)status
);
1904 EnterCriticalSection(&pinfo_cs
);
1908 struct pinfo_t
*info
= *ppinfo
;
1909 if (info
->pid
== pid
) {
1910 CloseHandle(info
->proc
);
1911 *ppinfo
= info
->next
;
1915 ppinfo
= &info
->next
;
1918 LeaveCriticalSection(&pinfo_cs
);
1929 int xutftowcsn(wchar_t *wcs
, const char *utfs
, size_t wcslen
, int utflen
)
1931 int upos
= 0, wpos
= 0;
1932 const unsigned char *utf
= (const unsigned char*) utfs
;
1933 if (!utf
|| !wcs
|| wcslen
< 1) {
1937 /* reserve space for \0 */
1942 while (upos
< utflen
) {
1943 int c
= utf
[upos
++] & 0xff;
1944 if (utflen
== INT_MAX
&& c
== 0)
1947 if (wpos
>= wcslen
) {
1956 } else if (c
>= 0xc2 && c
< 0xe0 && upos
< utflen
&&
1957 (utf
[upos
] & 0xc0) == 0x80) {
1959 c
= ((c
& 0x1f) << 6);
1960 c
|= (utf
[upos
++] & 0x3f);
1962 } else if (c
>= 0xe0 && c
< 0xf0 && upos
+ 1 < utflen
&&
1963 !(c
== 0xe0 && utf
[upos
] < 0xa0) && /* over-long encoding */
1964 (utf
[upos
] & 0xc0) == 0x80 &&
1965 (utf
[upos
+ 1] & 0xc0) == 0x80) {
1967 c
= ((c
& 0x0f) << 12);
1968 c
|= ((utf
[upos
++] & 0x3f) << 6);
1969 c
|= (utf
[upos
++] & 0x3f);
1971 } else if (c
>= 0xf0 && c
< 0xf5 && upos
+ 2 < utflen
&&
1972 wpos
+ 1 < wcslen
&&
1973 !(c
== 0xf0 && utf
[upos
] < 0x90) && /* over-long encoding */
1974 !(c
== 0xf4 && utf
[upos
] >= 0x90) && /* > \u10ffff */
1975 (utf
[upos
] & 0xc0) == 0x80 &&
1976 (utf
[upos
+ 1] & 0xc0) == 0x80 &&
1977 (utf
[upos
+ 2] & 0xc0) == 0x80) {
1978 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
1979 c
= ((c
& 0x07) << 18);
1980 c
|= ((utf
[upos
++] & 0x3f) << 12);
1981 c
|= ((utf
[upos
++] & 0x3f) << 6);
1982 c
|= (utf
[upos
++] & 0x3f);
1984 wcs
[wpos
++] = 0xd800 | (c
>> 10);
1985 wcs
[wpos
++] = 0xdc00 | (c
& 0x3ff);
1986 } else if (c
>= 0xa0) {
1987 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
1990 /* invalid utf-8 byte, non-printable unicode: convert to hex */
1991 static const char *hex
= "0123456789abcdef";
1992 wcs
[wpos
++] = hex
[c
>> 4];
1994 wcs
[wpos
++] = hex
[c
& 0x0f];
2001 int xwcstoutf(char *utf
, const wchar_t *wcs
, size_t utflen
)
2003 if (!wcs
|| !utf
|| utflen
< 1) {
2007 utflen
= WideCharToMultiByte(CP_UTF8
, 0, wcs
, -1, utf
, utflen
, NULL
, NULL
);
2015 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2016 * mingw startup code, see init.c in mingw runtime).
2024 extern int __wgetmainargs(int *argc
, wchar_t ***argv
, wchar_t ***env
, int glob
,
2027 static NORETURN
void die_startup()
2029 fputs("fatal: not enough memory for initialization", stderr
);
2033 static void *malloc_startup(size_t size
)
2035 void *result
= malloc(size
);
2041 static char *wcstoutfdup_startup(char *buffer
, const wchar_t *wcs
, size_t len
)
2043 len
= xwcstoutf(buffer
, wcs
, len
) + 1;
2044 return memcpy(malloc_startup(len
), buffer
, len
);
2047 void mingw_startup()
2049 int i
, maxlen
, argc
;
2051 wchar_t **wenv
, **wargv
;
2054 /* get wide char arguments and environment */
2056 if (__wgetmainargs(&argc
, &wargv
, &wenv
, _CRT_glob
, &si
) < 0)
2059 /* determine size of argv and environ conversion buffer */
2060 maxlen
= wcslen(_wpgmptr
);
2061 for (i
= 1; i
< argc
; i
++)
2062 maxlen
= max(maxlen
, wcslen(wargv
[i
]));
2063 for (i
= 0; wenv
[i
]; i
++)
2064 maxlen
= max(maxlen
, wcslen(wenv
[i
]));
2067 * nedmalloc can't free CRT memory, allocate resizable environment
2068 * list. Note that xmalloc / xmemdupz etc. call getenv, so we cannot
2069 * use it while initializing the environment itself.
2071 environ_size
= i
+ 1;
2072 environ_alloc
= alloc_nr(environ_size
* sizeof(char*));
2073 environ
= malloc_startup(environ_alloc
);
2075 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2076 maxlen
= 3 * maxlen
+ 1;
2077 buffer
= malloc_startup(maxlen
);
2079 /* convert command line arguments and environment to UTF-8 */
2080 __argv
[0] = wcstoutfdup_startup(buffer
, _wpgmptr
, maxlen
);
2081 for (i
= 1; i
< argc
; i
++)
2082 __argv
[i
] = wcstoutfdup_startup(buffer
, wargv
[i
], maxlen
);
2083 for (i
= 0; wenv
[i
]; i
++)
2084 environ
[i
] = wcstoutfdup_startup(buffer
, wenv
[i
], maxlen
);
2088 /* sort environment for O(log n) getenv / putenv */
2089 qsort(environ
, i
, sizeof(char*), compareenv
);
2091 /* initialize critical section for waitpid pinfo_t list */
2092 InitializeCriticalSection(&pinfo_cs
);
2094 /* set up default file mode and file modes for stdin/out/err */
2096 _setmode(_fileno(stdin
), _O_BINARY
);
2097 _setmode(_fileno(stdout
), _O_BINARY
);
2098 _setmode(_fileno(stderr
), _O_BINARY
);
2100 /* initialize Unicode console */