1 #include "../git-compat-util.h"
6 #include "../run-command.h"
9 #define HCAST(type, handle) ((type)(intptr_t)handle)
11 static const int delay
[] = { 0, 1, 10, 20, 40 };
13 int err_win_to_posix(DWORD winerr
)
17 case ERROR_ACCESS_DENIED
: error
= EACCES
; break;
18 case ERROR_ACCOUNT_DISABLED
: error
= EACCES
; break;
19 case ERROR_ACCOUNT_RESTRICTION
: error
= EACCES
; break;
20 case ERROR_ALREADY_ASSIGNED
: error
= EBUSY
; break;
21 case ERROR_ALREADY_EXISTS
: error
= EEXIST
; break;
22 case ERROR_ARITHMETIC_OVERFLOW
: error
= ERANGE
; break;
23 case ERROR_BAD_COMMAND
: error
= EIO
; break;
24 case ERROR_BAD_DEVICE
: error
= ENODEV
; break;
25 case ERROR_BAD_DRIVER_LEVEL
: error
= ENXIO
; break;
26 case ERROR_BAD_EXE_FORMAT
: error
= ENOEXEC
; break;
27 case ERROR_BAD_FORMAT
: error
= ENOEXEC
; break;
28 case ERROR_BAD_LENGTH
: error
= EINVAL
; break;
29 case ERROR_BAD_PATHNAME
: error
= ENOENT
; break;
30 case ERROR_BAD_PIPE
: error
= EPIPE
; break;
31 case ERROR_BAD_UNIT
: error
= ENODEV
; break;
32 case ERROR_BAD_USERNAME
: error
= EINVAL
; break;
33 case ERROR_BROKEN_PIPE
: error
= EPIPE
; break;
34 case ERROR_BUFFER_OVERFLOW
: error
= ENAMETOOLONG
; break;
35 case ERROR_BUSY
: error
= EBUSY
; break;
36 case ERROR_BUSY_DRIVE
: error
= EBUSY
; break;
37 case ERROR_CALL_NOT_IMPLEMENTED
: error
= ENOSYS
; break;
38 case ERROR_CANNOT_MAKE
: error
= EACCES
; break;
39 case ERROR_CANTOPEN
: error
= EIO
; break;
40 case ERROR_CANTREAD
: error
= EIO
; break;
41 case ERROR_CANTWRITE
: error
= EIO
; break;
42 case ERROR_CRC
: error
= EIO
; break;
43 case ERROR_CURRENT_DIRECTORY
: error
= EACCES
; break;
44 case ERROR_DEVICE_IN_USE
: error
= EBUSY
; break;
45 case ERROR_DEV_NOT_EXIST
: error
= ENODEV
; break;
46 case ERROR_DIRECTORY
: error
= EINVAL
; break;
47 case ERROR_DIR_NOT_EMPTY
: error
= ENOTEMPTY
; break;
48 case ERROR_DISK_CHANGE
: error
= EIO
; break;
49 case ERROR_DISK_FULL
: error
= ENOSPC
; break;
50 case ERROR_DRIVE_LOCKED
: error
= EBUSY
; break;
51 case ERROR_ENVVAR_NOT_FOUND
: error
= EINVAL
; break;
52 case ERROR_EXE_MARKED_INVALID
: error
= ENOEXEC
; break;
53 case ERROR_FILENAME_EXCED_RANGE
: error
= ENAMETOOLONG
; break;
54 case ERROR_FILE_EXISTS
: error
= EEXIST
; break;
55 case ERROR_FILE_INVALID
: error
= ENODEV
; break;
56 case ERROR_FILE_NOT_FOUND
: error
= ENOENT
; break;
57 case ERROR_GEN_FAILURE
: error
= EIO
; break;
58 case ERROR_HANDLE_DISK_FULL
: error
= ENOSPC
; break;
59 case ERROR_INSUFFICIENT_BUFFER
: error
= ENOMEM
; break;
60 case ERROR_INVALID_ACCESS
: error
= EACCES
; break;
61 case ERROR_INVALID_ADDRESS
: error
= EFAULT
; break;
62 case ERROR_INVALID_BLOCK
: error
= EFAULT
; break;
63 case ERROR_INVALID_DATA
: error
= EINVAL
; break;
64 case ERROR_INVALID_DRIVE
: error
= ENODEV
; break;
65 case ERROR_INVALID_EXE_SIGNATURE
: error
= ENOEXEC
; break;
66 case ERROR_INVALID_FLAGS
: error
= EINVAL
; break;
67 case ERROR_INVALID_FUNCTION
: error
= ENOSYS
; break;
68 case ERROR_INVALID_HANDLE
: error
= EBADF
; break;
69 case ERROR_INVALID_LOGON_HOURS
: error
= EACCES
; break;
70 case ERROR_INVALID_NAME
: error
= EINVAL
; break;
71 case ERROR_INVALID_OWNER
: error
= EINVAL
; break;
72 case ERROR_INVALID_PARAMETER
: error
= EINVAL
; break;
73 case ERROR_INVALID_PASSWORD
: error
= EPERM
; break;
74 case ERROR_INVALID_PRIMARY_GROUP
: error
= EINVAL
; break;
75 case ERROR_INVALID_SIGNAL_NUMBER
: error
= EINVAL
; break;
76 case ERROR_INVALID_TARGET_HANDLE
: error
= EIO
; break;
77 case ERROR_INVALID_WORKSTATION
: error
= EACCES
; break;
78 case ERROR_IO_DEVICE
: error
= EIO
; break;
79 case ERROR_IO_INCOMPLETE
: error
= EINTR
; break;
80 case ERROR_LOCKED
: error
= EBUSY
; break;
81 case ERROR_LOCK_VIOLATION
: error
= EACCES
; break;
82 case ERROR_LOGON_FAILURE
: error
= EACCES
; break;
83 case ERROR_MAPPED_ALIGNMENT
: error
= EINVAL
; break;
84 case ERROR_META_EXPANSION_TOO_LONG
: error
= E2BIG
; break;
85 case ERROR_MORE_DATA
: error
= EPIPE
; break;
86 case ERROR_NEGATIVE_SEEK
: error
= ESPIPE
; break;
87 case ERROR_NOACCESS
: error
= EFAULT
; break;
88 case ERROR_NONE_MAPPED
: error
= EINVAL
; break;
89 case ERROR_NOT_ENOUGH_MEMORY
: error
= ENOMEM
; break;
90 case ERROR_NOT_READY
: error
= EAGAIN
; break;
91 case ERROR_NOT_SAME_DEVICE
: error
= EXDEV
; break;
92 case ERROR_NO_DATA
: error
= EPIPE
; break;
93 case ERROR_NO_MORE_SEARCH_HANDLES
: error
= EIO
; break;
94 case ERROR_NO_PROC_SLOTS
: error
= EAGAIN
; break;
95 case ERROR_NO_SUCH_PRIVILEGE
: error
= EACCES
; break;
96 case ERROR_OPEN_FAILED
: error
= EIO
; break;
97 case ERROR_OPEN_FILES
: error
= EBUSY
; break;
98 case ERROR_OPERATION_ABORTED
: error
= EINTR
; break;
99 case ERROR_OUTOFMEMORY
: error
= ENOMEM
; break;
100 case ERROR_PASSWORD_EXPIRED
: error
= EACCES
; break;
101 case ERROR_PATH_BUSY
: error
= EBUSY
; break;
102 case ERROR_PATH_NOT_FOUND
: error
= ENOENT
; break;
103 case ERROR_PIPE_BUSY
: error
= EBUSY
; break;
104 case ERROR_PIPE_CONNECTED
: error
= EPIPE
; break;
105 case ERROR_PIPE_LISTENING
: error
= EPIPE
; break;
106 case ERROR_PIPE_NOT_CONNECTED
: error
= EPIPE
; break;
107 case ERROR_PRIVILEGE_NOT_HELD
: error
= EACCES
; break;
108 case ERROR_READ_FAULT
: error
= EIO
; break;
109 case ERROR_SEEK
: error
= EIO
; break;
110 case ERROR_SEEK_ON_DEVICE
: error
= ESPIPE
; break;
111 case ERROR_SHARING_BUFFER_EXCEEDED
: error
= ENFILE
; break;
112 case ERROR_SHARING_VIOLATION
: error
= EACCES
; break;
113 case ERROR_STACK_OVERFLOW
: error
= ENOMEM
; break;
114 case ERROR_SWAPERROR
: error
= ENOENT
; break;
115 case ERROR_TOO_MANY_MODULES
: error
= EMFILE
; break;
116 case ERROR_TOO_MANY_OPEN_FILES
: error
= EMFILE
; break;
117 case ERROR_UNRECOGNIZED_MEDIA
: error
= ENXIO
; break;
118 case ERROR_UNRECOGNIZED_VOLUME
: error
= ENODEV
; break;
119 case ERROR_WAIT_NO_CHILDREN
: error
= ECHILD
; break;
120 case ERROR_WRITE_FAULT
: error
= EIO
; break;
121 case ERROR_WRITE_PROTECT
: error
= EROFS
; break;
126 static inline int is_file_in_use_error(DWORD errcode
)
129 case ERROR_SHARING_VIOLATION
:
130 case ERROR_ACCESS_DENIED
:
137 static int read_yes_no_answer(void)
141 if (fgets(answer
, sizeof(answer
), stdin
)) {
142 size_t answer_len
= strlen(answer
);
143 int got_full_line
= 0, c
;
145 /* remove the newline */
146 if (answer_len
>= 2 && answer
[answer_len
-2] == '\r') {
147 answer
[answer_len
-2] = '\0';
149 } else if (answer_len
>= 1 && answer
[answer_len
-1] == '\n') {
150 answer
[answer_len
-1] = '\0';
153 /* flush the buffer in case we did not get the full line */
155 while ((c
= getchar()) != EOF
&& c
!= '\n')
158 /* we could not read, return the
159 * default answer which is no */
162 if (tolower(answer
[0]) == 'y' && !answer
[1])
164 if (!strncasecmp(answer
, "yes", sizeof(answer
)))
166 if (tolower(answer
[0]) == 'n' && !answer
[1])
168 if (!strncasecmp(answer
, "no", sizeof(answer
)))
171 /* did not find an answer we understand */
175 static int ask_yes_no_if_possible(const char *format
, ...)
178 const char *retry_hook
[] = { NULL
, NULL
, NULL
};
181 va_start(args
, format
);
182 vsnprintf(question
, sizeof(question
), format
, args
);
185 if ((retry_hook
[0] = mingw_getenv("GIT_ASK_YESNO"))) {
186 retry_hook
[1] = question
;
187 return !run_command_v_opt(retry_hook
, 0);
190 if (!isatty(_fileno(stdin
)) || !isatty(_fileno(stderr
)))
195 fprintf(stderr
, "%s (y/n) ", question
);
197 if ((answer
= read_yes_no_answer()) >= 0)
200 fprintf(stderr
, "Sorry, I did not understand your answer. "
201 "Please type 'y' or 'n'\n");
205 int mingw_unlink(const char *pathname
)
208 wchar_t wpathname
[MAX_PATH
];
209 if (xutftowcs_path(wpathname
, pathname
) < 0)
212 /* read-only files cannot be removed */
213 _wchmod(wpathname
, 0666);
214 while ((ret
= _wunlink(wpathname
)) == -1 && tries
< ARRAY_SIZE(delay
)) {
215 if (!is_file_in_use_error(GetLastError()))
218 * We assume that some other process had the source or
219 * destination file open at the wrong moment and retry.
220 * In order to give the other process a higher chance to
221 * complete its operation, we give up our time slice now.
222 * If we have to retry again, we do sleep a bit.
227 while (ret
== -1 && is_file_in_use_error(GetLastError()) &&
228 ask_yes_no_if_possible("Unlink of file '%s' failed. "
229 "Should I try again?", pathname
))
230 ret
= _wunlink(wpathname
);
234 static int is_dir_empty(const wchar_t *wpath
)
236 WIN32_FIND_DATAW findbuf
;
238 wchar_t wbuf
[MAX_PATH
+ 2];
240 wcscat(wbuf
, L
"\\*");
241 handle
= FindFirstFileW(wbuf
, &findbuf
);
242 if (handle
== INVALID_HANDLE_VALUE
)
243 return GetLastError() == ERROR_NO_MORE_FILES
;
245 while (!wcscmp(findbuf
.cFileName
, L
".") ||
246 !wcscmp(findbuf
.cFileName
, L
".."))
247 if (!FindNextFileW(handle
, &findbuf
)) {
248 DWORD err
= GetLastError();
250 return err
== ERROR_NO_MORE_FILES
;
256 int mingw_rmdir(const char *pathname
)
259 wchar_t wpathname
[MAX_PATH
];
260 if (xutftowcs_path(wpathname
, pathname
) < 0)
263 while ((ret
= _wrmdir(wpathname
)) == -1 && tries
< ARRAY_SIZE(delay
)) {
264 if (!is_file_in_use_error(GetLastError()))
265 errno
= err_win_to_posix(GetLastError());
268 if (!is_dir_empty(wpathname
)) {
273 * We assume that some other process had the source or
274 * destination file open at the wrong moment and retry.
275 * In order to give the other process a higher chance to
276 * complete its operation, we give up our time slice now.
277 * If we have to retry again, we do sleep a bit.
282 while (ret
== -1 && errno
== EACCES
&& is_file_in_use_error(GetLastError()) &&
283 ask_yes_no_if_possible("Deletion of directory '%s' failed. "
284 "Should I try again?", pathname
))
285 ret
= _wrmdir(wpathname
);
289 int mingw_mkdir(const char *path
, int mode
)
292 wchar_t wpath
[MAX_PATH
];
293 if (xutftowcs_path(wpath
, path
) < 0)
295 ret
= _wmkdir(wpath
);
299 int mingw_open (const char *filename
, int oflags
, ...)
304 wchar_t wfilename
[MAX_PATH
];
306 va_start(args
, oflags
);
307 mode
= va_arg(args
, int);
310 if (filename
&& !strcmp(filename
, "/dev/null"))
313 if (xutftowcs_path(wfilename
, filename
) < 0)
315 fd
= _wopen(wfilename
, oflags
, mode
);
317 if (fd
< 0 && (oflags
& O_ACCMODE
) != O_RDONLY
&& errno
== EACCES
) {
318 DWORD attrs
= GetFileAttributesW(wfilename
);
319 if (attrs
!= INVALID_FILE_ATTRIBUTES
&& (attrs
& FILE_ATTRIBUTE_DIRECTORY
))
325 static BOOL WINAPI
ctrl_ignore(DWORD type
)
331 int mingw_fgetc(FILE *stream
)
334 if (!isatty(_fileno(stream
)))
335 return fgetc(stream
);
337 SetConsoleCtrlHandler(ctrl_ignore
, TRUE
);
340 if (ch
!= EOF
|| GetLastError() != ERROR_OPERATION_ABORTED
)
343 /* Ctrl+C was pressed, simulate SIGINT and retry */
346 SetConsoleCtrlHandler(ctrl_ignore
, FALSE
);
351 FILE *mingw_fopen (const char *filename
, const char *otype
)
354 wchar_t wfilename
[MAX_PATH
], wotype
[4];
355 if (filename
&& !strcmp(filename
, "/dev/null"))
357 if (xutftowcs_path(wfilename
, filename
) < 0 ||
358 xutftowcs(wotype
, otype
, ARRAY_SIZE(wotype
)) < 0)
360 file
= _wfopen(wfilename
, wotype
);
364 FILE *mingw_freopen (const char *filename
, const char *otype
, FILE *stream
)
367 wchar_t wfilename
[MAX_PATH
], wotype
[4];
368 if (filename
&& !strcmp(filename
, "/dev/null"))
370 if (xutftowcs_path(wfilename
, filename
) < 0 ||
371 xutftowcs(wotype
, otype
, ARRAY_SIZE(wotype
)) < 0)
373 file
= _wfreopen(wfilename
, wotype
, stream
);
378 int mingw_fflush(FILE *stream
)
380 int ret
= fflush(stream
);
383 * write() is used behind the scenes of stdio output functions.
384 * Since git code does not check for errors after each stdio write
385 * operation, it can happen that write() is called by a later
386 * stdio function even if an earlier write() call failed. In the
387 * case of a pipe whose readable end was closed, only the first
388 * call to write() reports EPIPE on Windows. Subsequent write()
389 * calls report EINVAL. It is impossible to notice whether this
390 * fflush invocation triggered such a case, therefore, we have to
391 * catch all EINVAL errors whole-sale.
393 if (ret
&& errno
== EINVAL
)
400 ssize_t
mingw_write(int fd
, const void *buf
, size_t len
)
402 ssize_t result
= write(fd
, buf
, len
);
404 if (result
< 0 && errno
== EINVAL
&& buf
) {
405 /* check if fd is a pipe */
406 HANDLE h
= (HANDLE
) _get_osfhandle(fd
);
407 if (GetFileType(h
) == FILE_TYPE_PIPE
)
416 int mingw_access(const char *filename
, int mode
)
418 wchar_t wfilename
[MAX_PATH
];
419 if (xutftowcs_path(wfilename
, filename
) < 0)
421 /* X_OK is not supported by the MSVCRT version */
422 return _waccess(wfilename
, mode
& ~X_OK
);
425 int mingw_chdir(const char *dirname
)
427 wchar_t wdirname
[MAX_PATH
];
428 if (xutftowcs_path(wdirname
, dirname
) < 0)
430 return _wchdir(wdirname
);
433 int mingw_chmod(const char *filename
, int mode
)
435 wchar_t wfilename
[MAX_PATH
];
436 if (xutftowcs_path(wfilename
, filename
) < 0)
438 return _wchmod(wfilename
, mode
);
442 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
443 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
445 static inline long long filetime_to_hnsec(const FILETIME
*ft
)
447 long long winTime
= ((long long)ft
->dwHighDateTime
<< 32) + ft
->dwLowDateTime
;
448 /* Windows to Unix Epoch conversion */
449 return winTime
- 116444736000000000LL;
452 static inline time_t filetime_to_time_t(const FILETIME
*ft
)
454 return (time_t)(filetime_to_hnsec(ft
) / 10000000);
457 /* We keep the do_lstat code in a separate function to avoid recursion.
458 * When a path ends with a slash, the stat will fail with ENOENT. In
459 * this case, we strip the trailing slashes and stat again.
461 * If follow is true then act like stat() and report on the link
462 * target. Otherwise report on the link itself.
464 static int do_lstat(int follow
, const char *file_name
, struct stat
*buf
)
466 WIN32_FILE_ATTRIBUTE_DATA fdata
;
467 wchar_t wfilename
[MAX_PATH
];
468 if (xutftowcs_path(wfilename
, file_name
) < 0)
471 if (GetFileAttributesExW(wfilename
, GetFileExInfoStandard
, &fdata
)) {
476 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
477 buf
->st_size
= fdata
.nFileSizeLow
|
478 (((off_t
)fdata
.nFileSizeHigh
)<<32);
479 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
480 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
481 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
482 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
483 if (fdata
.dwFileAttributes
& FILE_ATTRIBUTE_REPARSE_POINT
) {
484 WIN32_FIND_DATAW findbuf
;
485 HANDLE handle
= FindFirstFileW(wfilename
, &findbuf
);
486 if (handle
!= INVALID_HANDLE_VALUE
) {
487 if ((findbuf
.dwFileAttributes
& FILE_ATTRIBUTE_REPARSE_POINT
) &&
488 (findbuf
.dwReserved0
== IO_REPARSE_TAG_SYMLINK
)) {
490 char buffer
[MAXIMUM_REPARSE_DATA_BUFFER_SIZE
];
491 buf
->st_size
= readlink(file_name
, buffer
, MAXIMUM_REPARSE_DATA_BUFFER_SIZE
);
493 buf
->st_mode
= S_IFLNK
;
495 buf
->st_mode
|= S_IREAD
;
496 if (!(findbuf
.dwFileAttributes
& FILE_ATTRIBUTE_READONLY
))
497 buf
->st_mode
|= S_IWRITE
;
504 switch (GetLastError()) {
505 case ERROR_ACCESS_DENIED
:
506 case ERROR_SHARING_VIOLATION
:
507 case ERROR_LOCK_VIOLATION
:
508 case ERROR_SHARING_BUFFER_EXCEEDED
:
511 case ERROR_BUFFER_OVERFLOW
:
512 errno
= ENAMETOOLONG
;
514 case ERROR_NOT_ENOUGH_MEMORY
:
524 /* We provide our own lstat/fstat functions, since the provided
525 * lstat/fstat functions are so slow. These stat functions are
526 * tailored for Git's usage (read: fast), and are not meant to be
527 * complete. Note that Git stat()s are redirected to mingw_lstat()
528 * too, since Windows doesn't really handle symlinks that well.
530 static int do_stat_internal(int follow
, const char *file_name
, struct stat
*buf
)
533 char alt_name
[PATH_MAX
];
535 if (!do_lstat(follow
, file_name
, buf
))
538 /* if file_name ended in a '/', Windows returned ENOENT;
539 * try again without trailing slashes
544 namelen
= strlen(file_name
);
545 if (namelen
&& file_name
[namelen
-1] != '/')
547 while (namelen
&& file_name
[namelen
-1] == '/')
549 if (!namelen
|| namelen
>= PATH_MAX
)
552 memcpy(alt_name
, file_name
, namelen
);
553 alt_name
[namelen
] = 0;
554 return do_lstat(follow
, alt_name
, buf
);
557 int mingw_lstat(const char *file_name
, struct stat
*buf
)
559 return do_stat_internal(0, file_name
, buf
);
561 int mingw_stat(const char *file_name
, struct stat
*buf
)
563 return do_stat_internal(1, file_name
, buf
);
566 int mingw_fstat(int fd
, struct stat
*buf
)
568 HANDLE fh
= (HANDLE
)_get_osfhandle(fd
);
569 BY_HANDLE_FILE_INFORMATION fdata
;
571 if (fh
== INVALID_HANDLE_VALUE
) {
575 /* direct non-file handles to MS's fstat() */
576 if (GetFileType(fh
) != FILE_TYPE_DISK
)
577 return _fstati64(fd
, buf
);
579 if (GetFileInformationByHandle(fh
, &fdata
)) {
584 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
585 buf
->st_size
= fdata
.nFileSizeLow
|
586 (((off_t
)fdata
.nFileSizeHigh
)<<32);
587 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
588 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
589 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
590 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
597 static inline void time_t_to_filetime(time_t t
, FILETIME
*ft
)
599 long long winTime
= t
* 10000000LL + 116444736000000000LL;
600 ft
->dwLowDateTime
= winTime
;
601 ft
->dwHighDateTime
= winTime
>> 32;
604 int mingw_utime (const char *file_name
, const struct utimbuf
*times
)
609 wchar_t wfilename
[MAX_PATH
];
610 if (xutftowcs_path(wfilename
, file_name
) < 0)
613 /* must have write permission */
614 attrs
= GetFileAttributesW(wfilename
);
615 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
616 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
617 /* ignore errors here; open() will report them */
618 SetFileAttributesW(wfilename
, attrs
& ~FILE_ATTRIBUTE_READONLY
);
621 if ((fh
= _wopen(wfilename
, O_RDWR
| O_BINARY
)) < 0) {
627 time_t_to_filetime(times
->modtime
, &mft
);
628 time_t_to_filetime(times
->actime
, &aft
);
630 GetSystemTimeAsFileTime(&mft
);
633 if (!SetFileTime((HANDLE
)_get_osfhandle(fh
), NULL
, &aft
, &mft
)) {
641 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
642 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
643 /* ignore errors again */
644 SetFileAttributesW(wfilename
, attrs
);
649 unsigned int sleep (unsigned int seconds
)
655 char *mingw_mktemp(char *template)
657 wchar_t wtemplate
[MAX_PATH
];
658 if (xutftowcs_path(wtemplate
, template) < 0)
660 if (!_wmktemp(wtemplate
))
662 if (xwcstoutf(template, wtemplate
, strlen(template) + 1) < 0)
667 int mkstemp(char *template)
669 char *filename
= mktemp(template);
670 if (filename
== NULL
)
672 return open(filename
, O_RDWR
| O_CREAT
, 0600);
675 int gettimeofday(struct timeval
*tv
, void *tz
)
680 GetSystemTimeAsFileTime(&ft
);
681 hnsec
= filetime_to_hnsec(&ft
);
682 tv
->tv_sec
= hnsec
/ 10000000;
683 tv
->tv_usec
= (hnsec
% 10000000) / 10;
687 int pipe(int filedes
[2])
691 /* this creates non-inheritable handles */
692 if (!CreatePipe(&h
[0], &h
[1], NULL
, 8192)) {
693 errno
= err_win_to_posix(GetLastError());
696 filedes
[0] = _open_osfhandle(HCAST(int, h
[0]), O_NOINHERIT
);
697 if (filedes
[0] < 0) {
702 filedes
[1] = _open_osfhandle(HCAST(int, h
[1]), O_NOINHERIT
);
703 if (filedes
[1] < 0) {
711 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
713 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
714 memcpy(result
, gmtime(timep
), sizeof(struct tm
));
718 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
720 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
721 memcpy(result
, localtime(timep
), sizeof(struct tm
));
725 char *mingw_getcwd(char *pointer
, int len
)
728 wchar_t wpointer
[MAX_PATH
];
729 if (!_wgetcwd(wpointer
, ARRAY_SIZE(wpointer
)))
731 if (xwcstoutf(pointer
, wpointer
, len
) < 0)
733 for (i
= 0; pointer
[i
]; i
++)
734 if (pointer
[i
] == '\\')
740 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
741 * (Parsing C++ Command-Line Arguments)
743 static const char *quote_arg(const char *arg
)
745 /* count chars to quote */
747 int force_quotes
= 0;
750 if (!*p
) force_quotes
= 1;
752 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
756 else if (*p
== '\\') {
770 if (!force_quotes
&& n
== 0)
773 /* insert \ where necessary */
774 d
= q
= xmalloc(len
+n
+3);
779 else if (*arg
== '\\') {
781 while (*arg
== '\\') {
798 static const char *parse_interpreter(const char *cmd
)
800 static char buf
[100];
804 /* don't even try a .exe */
806 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
809 fd
= open(cmd
, O_RDONLY
);
812 n
= read(fd
, buf
, sizeof(buf
)-1);
814 if (n
< 4) /* at least '#!/x' and not error */
817 if (buf
[0] != '#' || buf
[1] != '!')
820 p
= buf
+ strcspn(buf
, "\r\n");
825 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
828 if ((opt
= strchr(p
+1, ' ')))
834 * Splits the PATH into parts.
836 static char **get_path_split(void)
838 char *p
, **path
, *envpath
= mingw_getenv("PATH");
841 if (!envpath
|| !*envpath
)
844 envpath
= xstrdup(envpath
);
850 if (*dir
) { /* not earlier, catches series of ; */
857 path
= xmalloc((n
+1)*sizeof(char *));
862 path
[i
++] = xstrdup(p
);
872 static void free_path_split(char **path
)
885 * exe_only means that we only want to detect .exe files, but not scripts
886 * (which do not have an extension)
888 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
891 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
893 if (!isexe
&& access(path
, F_OK
) == 0)
894 return xstrdup(path
);
895 path
[strlen(path
)-4] = '\0';
896 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
897 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
898 return xstrdup(path
);
903 * Determines the absolute path of cmd using the split path in path.
904 * If cmd contains a slash or backslash, no lookup is performed.
906 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
909 int len
= strlen(cmd
);
910 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
912 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
915 while (!prog
&& *path
)
916 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
921 static int do_putenv(char **env
, const char *name
, int size
, int free_old
);
923 /* used number of elements of environ array, including terminating NULL */
924 static int environ_size
= 0;
925 /* allocated size of environ array, in bytes */
926 static int environ_alloc
= 0;
929 * Create environment block suitable for CreateProcess. Merges current
930 * process environment and the supplied environment changes.
932 static wchar_t *make_environment_block(char **deltaenv
)
934 wchar_t *wenvblk
= NULL
;
936 int i
= 0, size
= environ_size
, wenvsz
= 0, wenvpos
= 0;
938 while (deltaenv
&& deltaenv
[i
])
941 /* copy the environment, leaving space for changes */
942 tmpenv
= xmalloc((size
+ i
) * sizeof(char*));
943 memcpy(tmpenv
, environ
, size
* sizeof(char*));
945 /* merge supplied environment changes into the temporary environment */
946 for (i
= 0; deltaenv
&& deltaenv
[i
]; i
++)
947 size
= do_putenv(tmpenv
, deltaenv
[i
], size
, 0);
949 /* create environment block from temporary environment */
950 for (i
= 0; tmpenv
[i
]; i
++) {
951 size
= 2 * strlen(tmpenv
[i
]) + 2; /* +2 for final \0 */
952 ALLOC_GROW(wenvblk
, (wenvpos
+ size
) * sizeof(wchar_t), wenvsz
);
953 wenvpos
+= xutftowcs(&wenvblk
[wenvpos
], tmpenv
[i
], size
) + 1;
955 /* add final \0 terminator */
956 wenvblk
[wenvpos
] = 0;
962 struct pinfo_t
*next
;
966 static struct pinfo_t
*pinfo
= NULL
;
967 CRITICAL_SECTION pinfo_cs
;
969 static pid_t
mingw_spawnve_fd(const char *cmd
, const char **argv
, char **deltaenv
,
971 int prepend_cmd
, int fhin
, int fhout
, int fherr
)
974 PROCESS_INFORMATION pi
;
976 wchar_t wcmd
[MAX_PATH
], wdir
[MAX_PATH
], *wargs
, *wenvblk
= NULL
;
977 unsigned flags
= CREATE_UNICODE_ENVIRONMENT
;
980 /* Determine whether or not we are associated to a console */
981 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
982 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
983 FILE_ATTRIBUTE_NORMAL
, NULL
);
984 if (cons
== INVALID_HANDLE_VALUE
) {
985 /* There is no console associated with this process.
986 * Since the child is a console process, Windows
987 * would normally create a console window. But
988 * since we'll be redirecting std streams, we do
989 * not need the console.
990 * It is necessary to use DETACHED_PROCESS
991 * instead of CREATE_NO_WINDOW to make ssh
992 * recognize that it has no console.
994 flags
|= DETACHED_PROCESS
;
996 /* There is already a console. If we specified
997 * DETACHED_PROCESS here, too, Windows would
998 * disassociate the child from the console.
999 * The same is true for CREATE_NO_WINDOW.
1004 memset(&si
, 0, sizeof(si
));
1006 si
.dwFlags
= STARTF_USESTDHANDLES
;
1007 si
.hStdInput
= winansi_get_osfhandle(fhin
);
1008 si
.hStdOutput
= winansi_get_osfhandle(fhout
);
1009 si
.hStdError
= winansi_get_osfhandle(fherr
);
1011 if (xutftowcs_path(wcmd
, cmd
) < 0)
1013 if (dir
&& xutftowcs_path(wdir
, dir
) < 0)
1016 /* concatenate argv, quoting args as we go */
1017 strbuf_init(&args
, 0);
1019 char *quoted
= (char *)quote_arg(cmd
);
1020 strbuf_addstr(&args
, quoted
);
1024 for (; *argv
; argv
++) {
1025 char *quoted
= (char *)quote_arg(*argv
);
1027 strbuf_addch(&args
, ' ');
1028 strbuf_addstr(&args
, quoted
);
1029 if (quoted
!= *argv
)
1033 wargs
= xmalloc((2 * args
.len
+ 1) * sizeof(wchar_t));
1034 xutftowcs(wargs
, args
.buf
, 2 * args
.len
+ 1);
1035 strbuf_release(&args
);
1037 wenvblk
= make_environment_block(deltaenv
);
1039 memset(&pi
, 0, sizeof(pi
));
1040 ret
= CreateProcessW(wcmd
, wargs
, NULL
, NULL
, TRUE
, flags
,
1041 wenvblk
, dir
? wdir
: NULL
, &si
, &pi
);
1050 CloseHandle(pi
.hThread
);
1053 * The process ID is the human-readable identifier of the process
1054 * that we want to present in log and error messages. The handle
1055 * is not useful for this purpose. But we cannot close it, either,
1056 * because it is not possible to turn a process ID into a process
1057 * handle after the process terminated.
1058 * Keep the handle in a list for waitpid.
1060 EnterCriticalSection(&pinfo_cs
);
1062 struct pinfo_t
*info
= xmalloc(sizeof(struct pinfo_t
));
1063 info
->pid
= pi
.dwProcessId
;
1064 info
->proc
= pi
.hProcess
;
1068 LeaveCriticalSection(&pinfo_cs
);
1070 return (pid_t
)pi
.dwProcessId
;
1073 static pid_t
mingw_spawnv(const char *cmd
, const char **argv
, int prepend_cmd
)
1075 return mingw_spawnve_fd(cmd
, argv
, NULL
, NULL
, prepend_cmd
, 0, 1, 2);
1078 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **deltaenv
,
1080 int fhin
, int fhout
, int fherr
)
1083 char **path
= get_path_split();
1084 char *prog
= path_lookup(cmd
, path
, 0);
1091 const char *interpr
= parse_interpreter(prog
);
1094 const char *argv0
= argv
[0];
1095 char *iprog
= path_lookup(interpr
, path
, 1);
1102 pid
= mingw_spawnve_fd(iprog
, argv
, deltaenv
, dir
, 1,
1103 fhin
, fhout
, fherr
);
1109 pid
= mingw_spawnve_fd(prog
, argv
, deltaenv
, dir
, 0,
1110 fhin
, fhout
, fherr
);
1113 free_path_split(path
);
1117 static int try_shell_exec(const char *cmd
, char *const *argv
)
1119 const char *interpr
= parse_interpreter(cmd
);
1126 path
= get_path_split();
1127 prog
= path_lookup(interpr
, path
, 1);
1131 while (argv
[argc
]) argc
++;
1132 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
1133 argv2
[0] = (char *)cmd
; /* full path to the script file */
1134 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
1135 pid
= mingw_spawnv(prog
, argv2
, 1);
1138 if (waitpid(pid
, &status
, 0) < 0)
1142 pid
= 1; /* indicate that we tried but failed */
1146 free_path_split(path
);
1150 int mingw_execv(const char *cmd
, char *const *argv
)
1152 /* check if git_command is a shell script */
1153 if (!try_shell_exec(cmd
, argv
)) {
1156 pid
= mingw_spawnv(cmd
, (const char **)argv
, 0);
1159 if (waitpid(pid
, &status
, 0) < 0)
1166 int mingw_execvp(const char *cmd
, char *const *argv
)
1168 char **path
= get_path_split();
1169 char *prog
= path_lookup(cmd
, path
, 0);
1172 mingw_execv(prog
, argv
);
1177 free_path_split(path
);
1181 int mingw_kill(pid_t pid
, int sig
)
1183 if (pid
> 0 && sig
== SIGTERM
) {
1184 HANDLE h
= OpenProcess(PROCESS_TERMINATE
, FALSE
, pid
);
1186 if (TerminateProcess(h
, -1)) {
1191 errno
= err_win_to_posix(GetLastError());
1194 } else if (pid
> 0 && sig
== 0) {
1195 HANDLE h
= OpenProcess(PROCESS_QUERY_INFORMATION
, FALSE
, pid
);
1207 * Compare environment entries by key (i.e. stopping at '=' or '\0').
1209 static int compareenv(const void *v1
, const void *v2
)
1211 const char *e1
= *(const char**)v1
;
1212 const char *e2
= *(const char**)v2
;
1217 c1
= (c1
== '=') ? 0 : tolower(c1
);
1218 c2
= (c2
== '=') ? 0 : tolower(c2
);
1228 static int bsearchenv(char **env
, const char *name
, size_t size
)
1230 unsigned low
= 0, high
= size
;
1231 while (low
< high
) {
1232 unsigned mid
= low
+ ((high
- low
) >> 1);
1233 int cmp
= compareenv(&env
[mid
], &name
);
1241 return ~low
; /* not found, return 1's complement of insert position */
1245 * If name contains '=', then sets the variable, otherwise it unsets it
1246 * Size includes the terminating NULL. Env must have room for size + 1 entries
1247 * (in case of insert). Returns the new size. Optionally frees removed entries.
1249 static int do_putenv(char **env
, const char *name
, int size
, int free_old
)
1251 int i
= bsearchenv(env
, name
, size
- 1);
1253 /* optionally free removed / replaced entry */
1254 if (i
>= 0 && free_old
)
1257 if (strchr(name
, '=')) {
1258 /* if new value ('key=value') is specified, insert or replace entry */
1261 memmove(&env
[i
+ 1], &env
[i
], (size
- i
) * sizeof(char*));
1264 env
[i
] = (char*) name
;
1265 } else if (i
>= 0) {
1266 /* otherwise ('key') remove existing entry */
1268 memmove(&env
[i
], &env
[i
+ 1], (size
- i
) * sizeof(char*));
1273 char *mingw_getenv(const char *name
)
1276 int pos
= bsearchenv(environ
, name
, environ_size
- 1);
1279 value
= strchr(environ
[pos
], '=');
1280 return value
? &value
[1] : NULL
;
1283 int mingw_putenv(const char *namevalue
)
1285 ALLOC_GROW(environ
, (environ_size
+ 1) * sizeof(char*), environ_alloc
);
1286 environ_size
= do_putenv(environ
, namevalue
, environ_size
, 1);
1291 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1292 * that service contains a numerical port, or that it is null. It
1293 * does a simple search using gethostbyname, and returns one IPv4 host
1296 static int WSAAPI
getaddrinfo_stub(const char *node
, const char *service
,
1297 const struct addrinfo
*hints
,
1298 struct addrinfo
**res
)
1300 struct hostent
*h
= NULL
;
1301 struct addrinfo
*ai
;
1302 struct sockaddr_in
*sin
;
1305 h
= gethostbyname(node
);
1307 return WSAGetLastError();
1310 ai
= xmalloc(sizeof(struct addrinfo
));
1313 ai
->ai_family
= AF_INET
;
1314 ai
->ai_socktype
= hints
? hints
->ai_socktype
: 0;
1315 switch (ai
->ai_socktype
) {
1317 ai
->ai_protocol
= IPPROTO_TCP
;
1320 ai
->ai_protocol
= IPPROTO_UDP
;
1323 ai
->ai_protocol
= 0;
1326 ai
->ai_addrlen
= sizeof(struct sockaddr_in
);
1327 if (hints
&& (hints
->ai_flags
& AI_CANONNAME
))
1328 ai
->ai_canonname
= h
? xstrdup(h
->h_name
) : NULL
;
1330 ai
->ai_canonname
= NULL
;
1332 sin
= xcalloc(1, ai
->ai_addrlen
);
1333 sin
->sin_family
= AF_INET
;
1334 /* Note: getaddrinfo is supposed to allow service to be a string,
1335 * which should be looked up using getservbyname. This is
1336 * currently not implemented */
1338 sin
->sin_port
= htons(atoi(service
));
1340 sin
->sin_addr
= *(struct in_addr
*)h
->h_addr
;
1341 else if (hints
&& (hints
->ai_flags
& AI_PASSIVE
))
1342 sin
->sin_addr
.s_addr
= INADDR_ANY
;
1344 sin
->sin_addr
.s_addr
= INADDR_LOOPBACK
;
1345 ai
->ai_addr
= (struct sockaddr
*)sin
;
1350 static void WSAAPI
freeaddrinfo_stub(struct addrinfo
*res
)
1352 free(res
->ai_canonname
);
1357 static int WSAAPI
getnameinfo_stub(const struct sockaddr
*sa
, socklen_t salen
,
1358 char *host
, DWORD hostlen
,
1359 char *serv
, DWORD servlen
, int flags
)
1361 const struct sockaddr_in
*sin
= (const struct sockaddr_in
*)sa
;
1362 if (sa
->sa_family
!= AF_INET
)
1367 if (host
&& hostlen
> 0) {
1368 struct hostent
*ent
= NULL
;
1369 if (!(flags
& NI_NUMERICHOST
))
1370 ent
= gethostbyaddr((const char *)&sin
->sin_addr
,
1371 sizeof(sin
->sin_addr
), AF_INET
);
1374 snprintf(host
, hostlen
, "%s", ent
->h_name
);
1375 else if (flags
& NI_NAMEREQD
)
1378 snprintf(host
, hostlen
, "%s", inet_ntoa(sin
->sin_addr
));
1381 if (serv
&& servlen
> 0) {
1382 struct servent
*ent
= NULL
;
1383 if (!(flags
& NI_NUMERICSERV
))
1384 ent
= getservbyport(sin
->sin_port
,
1385 flags
& NI_DGRAM
? "udp" : "tcp");
1388 snprintf(serv
, servlen
, "%s", ent
->s_name
);
1390 snprintf(serv
, servlen
, "%d", ntohs(sin
->sin_port
));
1396 static HMODULE ipv6_dll
= NULL
;
1397 static void (WSAAPI
*ipv6_freeaddrinfo
)(struct addrinfo
*res
);
1398 static int (WSAAPI
*ipv6_getaddrinfo
)(const char *node
, const char *service
,
1399 const struct addrinfo
*hints
,
1400 struct addrinfo
**res
);
1401 static int (WSAAPI
*ipv6_getnameinfo
)(const struct sockaddr
*sa
, socklen_t salen
,
1402 char *host
, DWORD hostlen
,
1403 char *serv
, DWORD servlen
, int flags
);
1405 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1406 * don't need to try to load that one dynamically.
1409 static void socket_cleanup(void)
1413 FreeLibrary(ipv6_dll
);
1415 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1416 ipv6_getaddrinfo
= getaddrinfo_stub
;
1417 ipv6_getnameinfo
= getnameinfo_stub
;
1420 static void ensure_socket_initialization(void)
1423 static int initialized
= 0;
1424 const char *libraries
[] = { "ws2_32.dll", "wship6.dll", NULL
};
1430 if (WSAStartup(MAKEWORD(2,2), &wsa
))
1431 die("unable to initialize winsock subsystem, error %d",
1434 for (name
= libraries
; *name
; name
++) {
1435 ipv6_dll
= LoadLibrary(*name
);
1439 ipv6_freeaddrinfo
= (void (WSAAPI
*)(struct addrinfo
*))
1440 GetProcAddress(ipv6_dll
, "freeaddrinfo");
1441 ipv6_getaddrinfo
= (int (WSAAPI
*)(const char *, const char *,
1442 const struct addrinfo
*,
1443 struct addrinfo
**))
1444 GetProcAddress(ipv6_dll
, "getaddrinfo");
1445 ipv6_getnameinfo
= (int (WSAAPI
*)(const struct sockaddr
*,
1446 socklen_t
, char *, DWORD
,
1447 char *, DWORD
, int))
1448 GetProcAddress(ipv6_dll
, "getnameinfo");
1449 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1450 FreeLibrary(ipv6_dll
);
1455 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1456 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1457 ipv6_getaddrinfo
= getaddrinfo_stub
;
1458 ipv6_getnameinfo
= getnameinfo_stub
;
1461 atexit(socket_cleanup
);
1466 int mingw_gethostname(char *name
, int namelen
)
1468 ensure_socket_initialization();
1469 return gethostname(name
, namelen
);
1472 #undef gethostbyname
1473 struct hostent
*mingw_gethostbyname(const char *host
)
1475 ensure_socket_initialization();
1476 return gethostbyname(host
);
1479 void mingw_freeaddrinfo(struct addrinfo
*res
)
1481 ipv6_freeaddrinfo(res
);
1484 int mingw_getaddrinfo(const char *node
, const char *service
,
1485 const struct addrinfo
*hints
, struct addrinfo
**res
)
1487 ensure_socket_initialization();
1488 return ipv6_getaddrinfo(node
, service
, hints
, res
);
1491 int mingw_getnameinfo(const struct sockaddr
*sa
, socklen_t salen
,
1492 char *host
, DWORD hostlen
, char *serv
, DWORD servlen
,
1495 ensure_socket_initialization();
1496 return ipv6_getnameinfo(sa
, salen
, host
, hostlen
, serv
, servlen
, flags
);
1499 int mingw_socket(int domain
, int type
, int protocol
)
1504 ensure_socket_initialization();
1505 s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
1506 if (s
== INVALID_SOCKET
) {
1508 * WSAGetLastError() values are regular BSD error codes
1509 * biased by WSABASEERR.
1510 * However, strerror() does not know about networking
1511 * specific errors, which are values beginning at 38 or so.
1512 * Therefore, we choose to leave the biased error code
1513 * in errno so that _if_ someone looks up the code somewhere,
1514 * then it is at least the number that are usually listed.
1516 errno
= WSAGetLastError();
1519 /* convert into a file descriptor */
1520 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
1522 return error("unable to make a socket file descriptor: %s",
1529 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1531 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1532 return connect(s
, sa
, sz
);
1536 int mingw_bind(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1538 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1539 return bind(s
, sa
, sz
);
1543 int mingw_setsockopt(int sockfd
, int lvl
, int optname
, void *optval
, int optlen
)
1545 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1546 return setsockopt(s
, lvl
, optname
, (const char*)optval
, optlen
);
1550 int mingw_shutdown(int sockfd
, int how
)
1552 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1553 return shutdown(s
, how
);
1557 int mingw_listen(int sockfd
, int backlog
)
1559 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1560 return listen(s
, backlog
);
1564 int mingw_accept(int sockfd1
, struct sockaddr
*sa
, socklen_t
*sz
)
1568 SOCKET s1
= (SOCKET
)_get_osfhandle(sockfd1
);
1569 SOCKET s2
= accept(s1
, sa
, sz
);
1571 /* convert into a file descriptor */
1572 if ((sockfd2
= _open_osfhandle(s2
, O_RDWR
|O_BINARY
)) < 0) {
1575 return error("unable to make a socket file descriptor: %s",
1582 int mingw_rename(const char *pold
, const char *pnew
)
1586 wchar_t wpold
[MAX_PATH
], wpnew
[MAX_PATH
];
1587 if (xutftowcs_path(wpold
, pold
) < 0 || xutftowcs_path(wpnew
, pnew
) < 0)
1591 * Try native rename() first to get errno right.
1592 * It is based on MoveFile(), which cannot overwrite existing files.
1594 if (!_wrename(wpold
, wpnew
))
1596 if (errno
!= EEXIST
)
1599 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1601 /* TODO: translate more errors */
1602 gle
= GetLastError();
1603 if (gle
== ERROR_ACCESS_DENIED
&&
1604 (attrs
= GetFileAttributesW(wpnew
)) != INVALID_FILE_ATTRIBUTES
) {
1605 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
1609 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
1610 SetFileAttributesW(wpnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
1611 if (MoveFileExW(wpold
, wpnew
, MOVEFILE_REPLACE_EXISTING
))
1613 gle
= GetLastError();
1614 /* revert file attributes on failure */
1615 SetFileAttributesW(wpnew
, attrs
);
1618 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
1620 * We assume that some other process had the source or
1621 * destination file open at the wrong moment and retry.
1622 * In order to give the other process a higher chance to
1623 * complete its operation, we give up our time slice now.
1624 * If we have to retry again, we do sleep a bit.
1626 Sleep(delay
[tries
]);
1630 if (gle
== ERROR_ACCESS_DENIED
&&
1631 ask_yes_no_if_possible("Rename from '%s' to '%s' failed. "
1632 "Should I try again?", pold
, pnew
))
1640 * Note that this doesn't return the actual pagesize, but
1641 * the allocation granularity. If future Windows specific git code
1642 * needs the real getpagesize function, we need to find another solution.
1644 int mingw_getpagesize(void)
1648 return si
.dwAllocationGranularity
;
1651 struct passwd
*getpwuid(int uid
)
1653 static char user_name
[100];
1654 static struct passwd p
;
1656 DWORD len
= sizeof(user_name
);
1657 if (!GetUserName(user_name
, &len
))
1659 p
.pw_name
= user_name
;
1660 p
.pw_gecos
= "unknown";
1665 static HANDLE timer_event
;
1666 static HANDLE timer_thread
;
1667 static int timer_interval
;
1668 static int one_shot
;
1669 static sig_handler_t timer_fn
= SIG_DFL
, sigint_fn
= SIG_DFL
;
1671 /* The timer works like this:
1672 * The thread, ticktack(), is a trivial routine that most of the time
1673 * only waits to receive the signal to terminate. The main thread tells
1674 * the thread to terminate by setting the timer_event to the signalled
1676 * But ticktack() interrupts the wait state after the timer's interval
1677 * length to call the signal handler.
1680 static unsigned __stdcall
ticktack(void *dummy
)
1682 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1683 mingw_raise(SIGALRM
);
1690 static int start_timer_thread(void)
1692 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1694 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1696 return errno
= ENOMEM
,
1697 error("cannot start timer thread");
1699 return errno
= ENOMEM
,
1700 error("cannot allocate resources for timer");
1704 static void stop_timer_thread(void)
1707 SetEvent(timer_event
); /* tell thread to terminate */
1709 int rc
= WaitForSingleObject(timer_thread
, 1000);
1710 if (rc
== WAIT_TIMEOUT
)
1711 error("timer thread did not terminate timely");
1712 else if (rc
!= WAIT_OBJECT_0
)
1713 error("waiting for timer thread failed: %lu",
1715 CloseHandle(timer_thread
);
1718 CloseHandle(timer_event
);
1720 timer_thread
= NULL
;
1723 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1725 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1728 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1730 static const struct timeval zero
;
1731 static int atexit_done
;
1734 return errno
= EINVAL
,
1735 error("setitimer param 3 != NULL not implemented");
1736 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1737 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1738 return errno
= EINVAL
,
1739 error("setitimer: it_interval must be zero or eq it_value");
1742 stop_timer_thread();
1744 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1745 is_timeval_eq(&in
->it_interval
, &zero
))
1748 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1749 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1751 atexit(stop_timer_thread
);
1754 return start_timer_thread();
1757 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1760 return errno
= EINVAL
,
1761 error("sigaction only implemented for SIGALRM");
1763 return errno
= EINVAL
,
1764 error("sigaction: param 3 != NULL not implemented");
1766 timer_fn
= in
->sa_handler
;
1771 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1783 sigint_fn
= handler
;
1787 return signal(sig
, handler
);
1794 int mingw_raise(int sig
)
1798 if (timer_fn
== SIG_DFL
) {
1799 if (isatty(STDERR_FILENO
))
1800 fputs("Alarm clock\n", stderr
);
1801 exit(128 + SIGALRM
);
1802 } else if (timer_fn
!= SIG_IGN
)
1807 if (sigint_fn
== SIG_DFL
)
1809 else if (sigint_fn
!= SIG_IGN
)
1819 static const char *make_backslash_path(const char *path
)
1821 static char buf
[PATH_MAX
+ 1];
1824 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1825 die("Too long path: %.*s", 60, path
);
1827 for (c
= buf
; *c
; c
++) {
1834 void mingw_open_html(const char *unixpath
)
1836 const char *htmlpath
= make_backslash_path(unixpath
);
1837 typedef HINSTANCE (WINAPI
*T
)(HWND
, const char *,
1838 const char *, const char *, const char *, INT
);
1843 shell32
= LoadLibrary("shell32.dll");
1845 die("cannot load shell32.dll");
1846 ShellExecute
= (T
)GetProcAddress(shell32
, "ShellExecuteA");
1848 die("cannot run browser");
1850 printf("Launching default browser to display HTML ...\n");
1851 r
= HCAST(int, ShellExecute(NULL
, "open", htmlpath
,
1852 NULL
, "\\", SW_SHOWNORMAL
));
1853 FreeLibrary(shell32
);
1854 /* see the MSDN documentation referring to the result codes here */
1856 die("failed to launch browser for %.*s", MAX_PATH
, unixpath
);
1860 int link(const char *oldpath
, const char *newpath
)
1862 typedef BOOL (WINAPI
*T
)(LPCWSTR
, LPCWSTR
, LPSECURITY_ATTRIBUTES
);
1863 static T create_hard_link
= NULL
;
1864 wchar_t woldpath
[MAX_PATH
], wnewpath
[MAX_PATH
];
1865 if (xutftowcs_path(woldpath
, oldpath
) < 0 ||
1866 xutftowcs_path(wnewpath
, newpath
) < 0)
1869 if (!create_hard_link
) {
1870 create_hard_link
= (T
) GetProcAddress(
1871 GetModuleHandle("kernel32.dll"), "CreateHardLinkW");
1872 if (!create_hard_link
)
1873 create_hard_link
= (T
)-1;
1875 if (create_hard_link
== (T
)-1) {
1879 if (!create_hard_link(wnewpath
, woldpath
, NULL
)) {
1880 errno
= err_win_to_posix(GetLastError());
1886 pid_t
waitpid(pid_t pid
, int *status
, int options
)
1888 HANDLE h
= OpenProcess(SYNCHRONIZE
| PROCESS_QUERY_INFORMATION
,
1895 if (pid
> 0 && options
& WNOHANG
) {
1896 if (WAIT_OBJECT_0
!= WaitForSingleObject(h
, 0)) {
1900 options
&= ~WNOHANG
;
1904 struct pinfo_t
**ppinfo
;
1905 if (WaitForSingleObject(h
, INFINITE
) != WAIT_OBJECT_0
) {
1911 GetExitCodeProcess(h
, (LPDWORD
)status
);
1913 EnterCriticalSection(&pinfo_cs
);
1917 struct pinfo_t
*info
= *ppinfo
;
1918 if (info
->pid
== pid
) {
1919 CloseHandle(info
->proc
);
1920 *ppinfo
= info
->next
;
1924 ppinfo
= &info
->next
;
1927 LeaveCriticalSection(&pinfo_cs
);
1938 int mingw_offset_1st_component(const char *path
)
1941 if (has_dos_drive_prefix(path
))
1945 else if (is_dir_sep(path
[0]) && is_dir_sep(path
[1])) {
1947 /* skip server name */
1948 char *pos
= strpbrk(path
+ 2, "\\/");
1950 return 0; /* Error: malformed unc path */
1954 } while (*pos
&& !is_dir_sep(*pos
));
1956 offset
= pos
- path
;
1959 return offset
+ is_dir_sep(path
[offset
]);
1962 int xutftowcsn(wchar_t *wcs
, const char *utfs
, size_t wcslen
, int utflen
)
1964 int upos
= 0, wpos
= 0;
1965 const unsigned char *utf
= (const unsigned char*) utfs
;
1966 if (!utf
|| !wcs
|| wcslen
< 1) {
1970 /* reserve space for \0 */
1975 while (upos
< utflen
) {
1976 int c
= utf
[upos
++] & 0xff;
1977 if (utflen
== INT_MAX
&& c
== 0)
1980 if (wpos
>= wcslen
) {
1989 } else if (c
>= 0xc2 && c
< 0xe0 && upos
< utflen
&&
1990 (utf
[upos
] & 0xc0) == 0x80) {
1992 c
= ((c
& 0x1f) << 6);
1993 c
|= (utf
[upos
++] & 0x3f);
1995 } else if (c
>= 0xe0 && c
< 0xf0 && upos
+ 1 < utflen
&&
1996 !(c
== 0xe0 && utf
[upos
] < 0xa0) && /* over-long encoding */
1997 (utf
[upos
] & 0xc0) == 0x80 &&
1998 (utf
[upos
+ 1] & 0xc0) == 0x80) {
2000 c
= ((c
& 0x0f) << 12);
2001 c
|= ((utf
[upos
++] & 0x3f) << 6);
2002 c
|= (utf
[upos
++] & 0x3f);
2004 } else if (c
>= 0xf0 && c
< 0xf5 && upos
+ 2 < utflen
&&
2005 wpos
+ 1 < wcslen
&&
2006 !(c
== 0xf0 && utf
[upos
] < 0x90) && /* over-long encoding */
2007 !(c
== 0xf4 && utf
[upos
] >= 0x90) && /* > \u10ffff */
2008 (utf
[upos
] & 0xc0) == 0x80 &&
2009 (utf
[upos
+ 1] & 0xc0) == 0x80 &&
2010 (utf
[upos
+ 2] & 0xc0) == 0x80) {
2011 /* 4-byte utf-8: convert to \ud8xx \udcxx surrogate pair */
2012 c
= ((c
& 0x07) << 18);
2013 c
|= ((utf
[upos
++] & 0x3f) << 12);
2014 c
|= ((utf
[upos
++] & 0x3f) << 6);
2015 c
|= (utf
[upos
++] & 0x3f);
2017 wcs
[wpos
++] = 0xd800 | (c
>> 10);
2018 wcs
[wpos
++] = 0xdc00 | (c
& 0x3ff);
2019 } else if (c
>= 0xa0) {
2020 /* invalid utf-8 byte, printable unicode char: convert 1:1 */
2023 /* invalid utf-8 byte, non-printable unicode: convert to hex */
2024 static const char *hex
= "0123456789abcdef";
2025 wcs
[wpos
++] = hex
[c
>> 4];
2027 wcs
[wpos
++] = hex
[c
& 0x0f];
2034 int xwcstoutf(char *utf
, const wchar_t *wcs
, size_t utflen
)
2036 if (!wcs
|| !utf
|| utflen
< 1) {
2040 utflen
= WideCharToMultiByte(CP_UTF8
, 0, wcs
, -1, utf
, utflen
, NULL
, NULL
);
2048 * Disable MSVCRT command line wildcard expansion (__getmainargs called from
2049 * mingw startup code, see init.c in mingw runtime).
2057 extern int __wgetmainargs(int *argc
, wchar_t ***argv
, wchar_t ***env
, int glob
,
2060 static NORETURN
void die_startup()
2062 fputs("fatal: not enough memory for initialization", stderr
);
2066 static void *malloc_startup(size_t size
)
2068 void *result
= malloc(size
);
2074 static char *wcstoutfdup_startup(char *buffer
, const wchar_t *wcs
, size_t len
)
2076 len
= xwcstoutf(buffer
, wcs
, len
) + 1;
2077 return memcpy(malloc_startup(len
), buffer
, len
);
2080 void mingw_startup()
2082 int i
, maxlen
, argc
;
2084 wchar_t **wenv
, **wargv
;
2087 /* get wide char arguments and environment */
2089 if (__wgetmainargs(&argc
, &wargv
, &wenv
, _CRT_glob
, &si
) < 0)
2092 /* determine size of argv and environ conversion buffer */
2093 maxlen
= wcslen(_wpgmptr
);
2094 for (i
= 1; i
< argc
; i
++)
2095 maxlen
= max(maxlen
, wcslen(wargv
[i
]));
2096 for (i
= 0; wenv
[i
]; i
++)
2097 maxlen
= max(maxlen
, wcslen(wenv
[i
]));
2100 * nedmalloc can't free CRT memory, allocate resizable environment
2101 * list. Note that xmalloc / xmemdupz etc. call getenv, so we cannot
2102 * use it while initializing the environment itself.
2104 environ_size
= i
+ 1;
2105 environ_alloc
= alloc_nr(environ_size
* sizeof(char*));
2106 environ
= malloc_startup(environ_alloc
);
2108 /* allocate buffer (wchar_t encodes to max 3 UTF-8 bytes) */
2109 maxlen
= 3 * maxlen
+ 1;
2110 buffer
= malloc_startup(maxlen
);
2112 /* convert command line arguments and environment to UTF-8 */
2113 __argv
[0] = wcstoutfdup_startup(buffer
, _wpgmptr
, maxlen
);
2114 for (i
= 1; i
< argc
; i
++)
2115 __argv
[i
] = wcstoutfdup_startup(buffer
, wargv
[i
], maxlen
);
2116 for (i
= 0; wenv
[i
]; i
++)
2117 environ
[i
] = wcstoutfdup_startup(buffer
, wenv
[i
], maxlen
);
2121 /* sort environment for O(log n) getenv / putenv */
2122 qsort(environ
, i
, sizeof(char*), compareenv
);
2124 /* fix Windows specific environment settings */
2126 /* on Windows it is TMP and TEMP */
2127 if (!mingw_getenv("TMPDIR")) {
2128 const char *tmp
= mingw_getenv("TMP");
2130 tmp
= mingw_getenv("TEMP");
2132 setenv("TMPDIR", tmp
, 1);
2135 /* simulate TERM to enable auto-color (see color.c) */
2136 if (!getenv("TERM"))
2137 setenv("TERM", "cygwin", 1);
2139 /* initialize critical section for waitpid pinfo_t list */
2140 InitializeCriticalSection(&pinfo_cs
);
2142 /* set up default file mode and file modes for stdin/out/err */
2144 _setmode(_fileno(stdin
), _O_BINARY
);
2145 _setmode(_fileno(stdout
), _O_BINARY
);
2146 _setmode(_fileno(stderr
), _O_BINARY
);
2148 /* initialize Unicode console */
2152 int uname(struct utsname
*buf
)
2154 unsigned v
= (unsigned)GetVersion();
2155 memset(buf
, 0, sizeof(*buf
));
2156 xsnprintf(buf
->sysname
, sizeof(buf
->sysname
), "Windows");
2157 xsnprintf(buf
->release
, sizeof(buf
->release
),
2158 "%u.%u", v
& 0xff, (v
>> 8) & 0xff);
2159 /* assuming NT variants only.. */
2160 xsnprintf(buf
->version
, sizeof(buf
->version
),
2161 "%u", (v
>> 16) & 0x7fff);