1 #include "../git-compat-util.h"
7 unsigned int _CRT_fmode
= _O_BINARY
;
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 int make_hidden(const char *path
)
125 DWORD attribs
= GetFileAttributes(path
);
126 if (SetFileAttributes(path
, FILE_ATTRIBUTE_HIDDEN
| attribs
))
128 errno
= err_win_to_posix(GetLastError());
132 void mingw_mark_as_git_dir(const char *dir
)
134 if (hide_dotfiles
!= HIDE_DOTFILES_FALSE
&& make_hidden(dir
))
135 warning("Failed to make '%s' hidden", dir
);
136 git_config_set("core.hideDotFiles",
137 hide_dotfiles
== HIDE_DOTFILES_FALSE
? "false" :
138 (hide_dotfiles
== HIDE_DOTFILES_DOTGITONLY
?
139 "dotGitOnly" : "true"));
143 int mingw_mkdir(const char *path
, int mode
)
145 int ret
= mkdir(path
);
146 if (!ret
&& hide_dotfiles
== HIDE_DOTFILES_TRUE
) {
148 * In Windows a file or dir starting with a dot is not
149 * automatically hidden. So lets mark it as hidden when
150 * such a directory is created.
152 const char *start
= basename((char*)path
);
154 return make_hidden(path
);
160 int mingw_unlink(const char *pathname
)
164 /* read-only files cannot be removed */
165 chmod(pathname
, 0666);
166 while ((ret
= unlink(pathname
)) == -1 && tries
< ARRAY_SIZE(delay
)) {
170 * We assume that some other process had the source or
171 * destination file open at the wrong moment and retry.
172 * In order to give the other process a higher chance to
173 * complete its operation, we give up our time slice now.
174 * If we have to retry again, we do sleep a bit.
183 int mingw_open (const char *filename
, int oflags
, ...)
189 va_start(args
, oflags
);
190 mode
= va_arg(args
, int);
193 if (!strcmp(filename
, "/dev/null"))
196 fd
= open(filename
, oflags
, mode
);
198 if (fd
< 0 && (oflags
& O_CREAT
) && errno
== EACCES
) {
199 DWORD attrs
= GetFileAttributes(filename
);
200 if (attrs
!= INVALID_FILE_ATTRIBUTES
&& (attrs
& FILE_ATTRIBUTE_DIRECTORY
))
203 if ((oflags
& O_CREAT
) && fd
>= 0 &&
204 hide_dotfiles
== HIDE_DOTFILES_TRUE
) {
206 * In Windows a file or dir starting with a dot is not
207 * automatically hidden. So lets mark it as hidden when
208 * such a file is created.
210 const char *start
= basename((char*)filename
);
211 if (*start
== '.' && make_hidden(filename
))
212 warning("Could not mark '%s' as hidden.", filename
);
218 ssize_t
mingw_write(int fd
, const void *buf
, size_t count
)
221 * While write() calls to a file on a local disk are translated
222 * into WriteFile() calls with a maximum size of 64KB on Windows
223 * XP and 256KB on Vista, no such cap is placed on writes to
224 * files over the network on Windows XP. Unfortunately, there
225 * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
226 * bigger writes fail on Windows XP.
227 * So we cap to a nice 31MB here to avoid write failures over
228 * the net without changing the number of WriteFile() calls in
231 return write(fd
, buf
, min(count
, 31 * 1024 * 1024));
235 FILE *mingw_fopen (const char *filename
, const char *otype
)
239 if (hide_dotfiles
== HIDE_DOTFILES_TRUE
&&
240 basename((char*)filename
)[0] == '.')
241 hide
= access(filename
, F_OK
);
242 if (!strcmp(filename
, "/dev/null"))
244 file
= fopen(filename
, otype
);
245 if (file
&& hide
&& make_hidden(filename
))
246 warning("Could not mark '%s' as hidden.", filename
);
251 FILE *mingw_freopen (const char *filename
, const char *otype
, FILE *stream
)
255 if (hide_dotfiles
== HIDE_DOTFILES_TRUE
&&
256 basename((char*)filename
)[0] == '.')
257 hide
= access(filename
, F_OK
);
258 if (filename
&& !strcmp(filename
, "/dev/null"))
260 file
= freopen(filename
, otype
, stream
);
261 if (file
&& hide
&& make_hidden(filename
))
262 warning("Could not mark '%s' as hidden.", filename
);
267 * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
268 * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
270 static inline long long filetime_to_hnsec(const FILETIME
*ft
)
272 long long winTime
= ((long long)ft
->dwHighDateTime
<< 32) + ft
->dwLowDateTime
;
273 /* Windows to Unix Epoch conversion */
274 return winTime
- 116444736000000000LL;
277 static inline time_t filetime_to_time_t(const FILETIME
*ft
)
279 return (time_t)(filetime_to_hnsec(ft
) / 10000000);
282 /* We keep the do_lstat code in a separate function to avoid recursion.
283 * When a path ends with a slash, the stat will fail with ENOENT. In
284 * this case, we strip the trailing slashes and stat again.
286 static int do_lstat(const char *file_name
, struct stat
*buf
)
288 WIN32_FILE_ATTRIBUTE_DATA fdata
;
290 if (!(errno
= get_file_attr(file_name
, &fdata
))) {
295 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
296 buf
->st_size
= fdata
.nFileSizeLow
|
297 (((off_t
)fdata
.nFileSizeHigh
)<<32);
298 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
299 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
300 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
301 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
307 /* We provide our own lstat/fstat functions, since the provided
308 * lstat/fstat functions are so slow. These stat functions are
309 * tailored for Git's usage (read: fast), and are not meant to be
310 * complete. Note that Git stat()s are redirected to mingw_lstat()
311 * too, since Windows doesn't really handle symlinks that well.
313 int mingw_lstat(const char *file_name
, struct stat
*buf
)
316 static char alt_name
[PATH_MAX
];
318 if (!do_lstat(file_name
, buf
))
321 /* if file_name ended in a '/', Windows returned ENOENT;
322 * try again without trailing slashes
327 namelen
= strlen(file_name
);
328 if (namelen
&& file_name
[namelen
-1] != '/')
330 while (namelen
&& file_name
[namelen
-1] == '/')
332 if (!namelen
|| namelen
>= PATH_MAX
)
335 memcpy(alt_name
, file_name
, namelen
);
336 alt_name
[namelen
] = 0;
337 return do_lstat(alt_name
, buf
);
341 int mingw_fstat(int fd
, struct stat
*buf
)
343 HANDLE fh
= (HANDLE
)_get_osfhandle(fd
);
344 BY_HANDLE_FILE_INFORMATION fdata
;
346 if (fh
== INVALID_HANDLE_VALUE
) {
350 /* direct non-file handles to MS's fstat() */
351 if (GetFileType(fh
) != FILE_TYPE_DISK
)
352 return _fstati64(fd
, buf
);
354 if (GetFileInformationByHandle(fh
, &fdata
)) {
359 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
360 buf
->st_size
= fdata
.nFileSizeLow
|
361 (((off_t
)fdata
.nFileSizeHigh
)<<32);
362 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
363 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
364 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
365 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
372 static inline void time_t_to_filetime(time_t t
, FILETIME
*ft
)
374 long long winTime
= t
* 10000000LL + 116444736000000000LL;
375 ft
->dwLowDateTime
= winTime
;
376 ft
->dwHighDateTime
= winTime
>> 32;
379 int mingw_utime (const char *file_name
, const struct utimbuf
*times
)
384 /* must have write permission */
385 DWORD attrs
= GetFileAttributes(file_name
);
386 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
387 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
388 /* ignore errors here; open() will report them */
389 SetFileAttributes(file_name
, attrs
& ~FILE_ATTRIBUTE_READONLY
);
392 if ((fh
= open(file_name
, O_RDWR
| O_BINARY
)) < 0) {
398 time_t_to_filetime(times
->modtime
, &mft
);
399 time_t_to_filetime(times
->actime
, &aft
);
401 GetSystemTimeAsFileTime(&mft
);
404 if (!SetFileTime((HANDLE
)_get_osfhandle(fh
), NULL
, &aft
, &mft
)) {
412 if (attrs
!= INVALID_FILE_ATTRIBUTES
&&
413 (attrs
& FILE_ATTRIBUTE_READONLY
)) {
414 /* ignore errors again */
415 SetFileAttributes(file_name
, attrs
);
420 unsigned int sleep (unsigned int seconds
)
426 int mkstemp(char *template)
428 char *filename
= mktemp(template);
429 if (filename
== NULL
)
431 return open(filename
, O_RDWR
| O_CREAT
, 0600);
434 int gettimeofday(struct timeval
*tv
, void *tz
)
439 GetSystemTimeAsFileTime(&ft
);
440 hnsec
= filetime_to_hnsec(&ft
);
441 tv
->tv_sec
= hnsec
/ 10000000;
442 tv
->tv_usec
= (hnsec
% 10000000) / 10;
446 int pipe(int filedes
[2])
450 /* this creates non-inheritable handles */
451 if (!CreatePipe(&h
[0], &h
[1], NULL
, 8192)) {
452 errno
= err_win_to_posix(GetLastError());
455 filedes
[0] = _open_osfhandle((int)h
[0], O_NOINHERIT
);
456 if (filedes
[0] < 0) {
461 filedes
[1] = _open_osfhandle((int)h
[1], O_NOINHERIT
);
462 if (filedes
[0] < 0) {
470 int poll(struct pollfd
*ufds
, unsigned int nfds
, int timeout
)
479 return errno
= EINVAL
, error("poll timeout not supported");
482 /* When there is only one fd to wait for, then we pretend that
483 * input is available and let the actual wait happen when the
484 * caller invokes read().
487 if (!(ufds
[0].events
& POLLIN
))
488 return errno
= EINVAL
, error("POLLIN not set");
489 ufds
[0].revents
= POLLIN
;
495 for (i
= 0; i
< nfds
; i
++) {
497 HANDLE h
= (HANDLE
) _get_osfhandle(ufds
[i
].fd
);
498 if (h
== INVALID_HANDLE_VALUE
)
499 return -1; /* errno was set */
501 if (!(ufds
[i
].events
& POLLIN
))
502 return errno
= EINVAL
, error("POLLIN not set");
504 /* this emulation works only for pipes */
505 if (!PeekNamedPipe(h
, NULL
, 0, NULL
, &avail
, NULL
)) {
506 int err
= GetLastError();
507 if (err
== ERROR_BROKEN_PIPE
) {
508 ufds
[i
].revents
= POLLHUP
;
512 return error("PeekNamedPipe failed,"
513 " GetLastError: %u", err
);
516 ufds
[i
].revents
= POLLIN
;
522 /* The only times that we spin here is when the process
523 * that is connected through the pipes is waiting for
524 * its own input data to become available. But since
525 * the process (pack-objects) is itself CPU intensive,
526 * it will happily pick up the time slice that we are
527 * relinquishing here.
535 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
537 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
538 memcpy(result
, gmtime(timep
), sizeof(struct tm
));
542 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
544 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
545 memcpy(result
, localtime(timep
), sizeof(struct tm
));
550 char *mingw_getcwd(char *pointer
, int len
)
553 char *ret
= getcwd(pointer
, len
);
556 for (i
= 0; pointer
[i
]; i
++)
557 if (pointer
[i
] == '\\')
563 char *mingw_getenv(const char *name
)
565 char *result
= getenv(name
);
566 if (!result
&& !strcmp(name
, "TMPDIR")) {
567 /* on Windows it is TMP and TEMP */
568 result
= getenv("TMP");
570 result
= getenv("TEMP");
576 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
577 * (Parsing C++ Command-Line Arguments)
579 static const char *quote_arg(const char *arg
)
581 /* count chars to quote */
583 int force_quotes
= 0;
586 if (!*p
) force_quotes
= 1;
588 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
592 else if (*p
== '\\') {
606 if (!force_quotes
&& n
== 0)
609 /* insert \ where necessary */
610 d
= q
= xmalloc(len
+n
+3);
615 else if (*arg
== '\\') {
617 while (*arg
== '\\') {
634 static const char *parse_interpreter(const char *cmd
)
636 static char buf
[100];
640 /* don't even try a .exe */
642 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
645 fd
= open(cmd
, O_RDONLY
);
648 n
= read(fd
, buf
, sizeof(buf
)-1);
650 if (n
< 4) /* at least '#!/x' and not error */
653 if (buf
[0] != '#' || buf
[1] != '!')
656 p
= buf
+ strcspn(buf
, "\r\n");
661 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
664 if ((opt
= strchr(p
+1, ' ')))
670 * Splits the PATH into parts.
672 static char **get_path_split(void)
674 char *p
, **path
, *envpath
= getenv("PATH");
677 if (!envpath
|| !*envpath
)
680 envpath
= xstrdup(envpath
);
686 if (*dir
) { /* not earlier, catches series of ; */
693 path
= xmalloc((n
+1)*sizeof(char *));
698 path
[i
++] = xstrdup(p
);
708 static void free_path_split(char **path
)
721 * exe_only means that we only want to detect .exe files, but not scripts
722 * (which do not have an extension)
724 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
727 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
729 if (!isexe
&& access(path
, F_OK
) == 0)
730 return xstrdup(path
);
731 path
[strlen(path
)-4] = '\0';
732 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
733 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
734 return xstrdup(path
);
739 * Determines the absolute path of cmd using the split path in path.
740 * If cmd contains a slash or backslash, no lookup is performed.
742 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
745 int len
= strlen(cmd
);
746 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
748 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
751 while (!prog
&& *path
)
752 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
757 static int env_compare(const void *a
, const void *b
)
761 return strcasecmp(*ea
, *eb
);
764 static pid_t
mingw_spawnve_fd(const char *cmd
, const char **argv
, char **env
,
766 int prepend_cmd
, int fhin
, int fhout
, int fherr
)
769 PROCESS_INFORMATION pi
;
770 struct strbuf envblk
, args
;
774 /* Determine whether or not we are associated to a console */
775 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
776 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
777 FILE_ATTRIBUTE_NORMAL
, NULL
);
778 if (cons
== INVALID_HANDLE_VALUE
) {
779 /* There is no console associated with this process.
780 * Since the child is a console process, Windows
781 * would normally create a console window. But
782 * since we'll be redirecting std streams, we do
783 * not need the console.
784 * It is necessary to use DETACHED_PROCESS
785 * instead of CREATE_NO_WINDOW to make ssh
786 * recognize that it has no console.
788 flags
= DETACHED_PROCESS
;
790 /* There is already a console. If we specified
791 * DETACHED_PROCESS here, too, Windows would
792 * disassociate the child from the console.
793 * The same is true for CREATE_NO_WINDOW.
799 memset(&si
, 0, sizeof(si
));
801 si
.dwFlags
= STARTF_USESTDHANDLES
;
802 si
.hStdInput
= (HANDLE
) _get_osfhandle(fhin
);
803 si
.hStdOutput
= (HANDLE
) _get_osfhandle(fhout
);
804 si
.hStdError
= (HANDLE
) _get_osfhandle(fherr
);
806 /* concatenate argv, quoting args as we go */
807 strbuf_init(&args
, 0);
809 char *quoted
= (char *)quote_arg(cmd
);
810 strbuf_addstr(&args
, quoted
);
814 for (; *argv
; argv
++) {
815 char *quoted
= (char *)quote_arg(*argv
);
817 strbuf_addch(&args
, ' ');
818 strbuf_addstr(&args
, quoted
);
825 char **e
, **sorted_env
;
827 for (e
= env
; *e
; e
++)
830 /* environment must be sorted */
831 sorted_env
= xmalloc(sizeof(*sorted_env
) * (count
+ 1));
832 memcpy(sorted_env
, env
, sizeof(*sorted_env
) * (count
+ 1));
833 qsort(sorted_env
, count
, sizeof(*sorted_env
), env_compare
);
835 strbuf_init(&envblk
, 0);
836 for (e
= sorted_env
; *e
; e
++) {
837 strbuf_addstr(&envblk
, *e
);
838 strbuf_addch(&envblk
, '\0');
843 memset(&pi
, 0, sizeof(pi
));
844 ret
= CreateProcess(cmd
, args
.buf
, NULL
, NULL
, TRUE
, flags
,
845 env
? envblk
.buf
: NULL
, dir
, &si
, &pi
);
848 strbuf_release(&envblk
);
849 strbuf_release(&args
);
855 CloseHandle(pi
.hThread
);
856 return (pid_t
)pi
.hProcess
;
859 static pid_t
mingw_spawnve(const char *cmd
, const char **argv
, char **env
,
862 return mingw_spawnve_fd(cmd
, argv
, env
, NULL
, prepend_cmd
, 0, 1, 2);
865 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **env
,
867 int fhin
, int fhout
, int fherr
)
870 char **path
= get_path_split();
871 char *prog
= path_lookup(cmd
, path
, 0);
878 const char *interpr
= parse_interpreter(prog
);
881 const char *argv0
= argv
[0];
882 char *iprog
= path_lookup(interpr
, path
, 1);
889 pid
= mingw_spawnve_fd(iprog
, argv
, env
, dir
, 1,
896 pid
= mingw_spawnve_fd(prog
, argv
, env
, dir
, 0,
900 free_path_split(path
);
904 static int try_shell_exec(const char *cmd
, char *const *argv
, char **env
)
906 const char *interpr
= parse_interpreter(cmd
);
913 path
= get_path_split();
914 prog
= path_lookup(interpr
, path
, 1);
918 while (argv
[argc
]) argc
++;
919 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
920 argv2
[0] = (char *)cmd
; /* full path to the script file */
921 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
922 pid
= mingw_spawnve(prog
, argv2
, env
, 1);
925 if (waitpid(pid
, &status
, 0) < 0)
929 pid
= 1; /* indicate that we tried but failed */
933 free_path_split(path
);
937 static void mingw_execve(const char *cmd
, char *const *argv
, char *const *env
)
939 /* check if git_command is a shell script */
940 if (!try_shell_exec(cmd
, argv
, (char **)env
)) {
943 pid
= mingw_spawnve(cmd
, (const char **)argv
, (char **)env
, 0);
946 if (waitpid(pid
, &status
, 0) < 0)
952 void mingw_execvp(const char *cmd
, char *const *argv
)
954 char **path
= get_path_split();
955 char *prog
= path_lookup(cmd
, path
, 0);
958 mingw_execve(prog
, argv
, environ
);
963 free_path_split(path
);
966 static char **copy_environ(void)
972 env
= xmalloc((i
+1)*sizeof(*env
));
973 for (i
= 0; environ
[i
]; i
++)
974 env
[i
] = xstrdup(environ
[i
]);
979 void free_environ(char **env
)
982 for (i
= 0; env
[i
]; i
++)
987 static int lookup_env(char **env
, const char *name
, size_t nmln
)
991 for (i
= 0; env
[i
]; i
++) {
992 if (0 == strncmp(env
[i
], name
, nmln
)
993 && '=' == env
[i
][nmln
])
1001 * If name contains '=', then sets the variable, otherwise it unsets it
1003 static char **env_setenv(char **env
, const char *name
)
1005 char *eq
= strchrnul(name
, '=');
1006 int i
= lookup_env(env
, name
, eq
-name
);
1010 for (i
= 0; env
[i
]; i
++)
1012 env
= xrealloc(env
, (i
+2)*sizeof(*env
));
1013 env
[i
] = xstrdup(name
);
1020 env
[i
] = xstrdup(name
);
1029 * Copies global environ and adjusts variables as specified by vars.
1031 char **make_augmented_environ(const char *const *vars
)
1033 char **env
= copy_environ();
1036 env
= env_setenv(env
, *vars
++);
1041 * Note, this isn't a complete replacement for getaddrinfo. It assumes
1042 * that service contains a numerical port, or that it it is null. It
1043 * does a simple search using gethostbyname, and returns one IPv4 host
1046 static int WSAAPI
getaddrinfo_stub(const char *node
, const char *service
,
1047 const struct addrinfo
*hints
,
1048 struct addrinfo
**res
)
1050 struct hostent
*h
= gethostbyname(node
);
1051 struct addrinfo
*ai
;
1052 struct sockaddr_in
*sin
;
1055 return WSAGetLastError();
1057 ai
= xmalloc(sizeof(struct addrinfo
));
1060 ai
->ai_family
= AF_INET
;
1061 ai
->ai_socktype
= hints
->ai_socktype
;
1062 switch (hints
->ai_socktype
) {
1064 ai
->ai_protocol
= IPPROTO_TCP
;
1067 ai
->ai_protocol
= IPPROTO_UDP
;
1070 ai
->ai_protocol
= 0;
1073 ai
->ai_addrlen
= sizeof(struct sockaddr_in
);
1074 ai
->ai_canonname
= strdup(h
->h_name
);
1076 sin
= xmalloc(ai
->ai_addrlen
);
1077 memset(sin
, 0, ai
->ai_addrlen
);
1078 sin
->sin_family
= AF_INET
;
1080 sin
->sin_port
= htons(atoi(service
));
1081 sin
->sin_addr
= *(struct in_addr
*)h
->h_addr
;
1082 ai
->ai_addr
= (struct sockaddr
*)sin
;
1087 static void WSAAPI
freeaddrinfo_stub(struct addrinfo
*res
)
1089 free(res
->ai_canonname
);
1094 static int WSAAPI
getnameinfo_stub(const struct sockaddr
*sa
, socklen_t salen
,
1095 char *host
, DWORD hostlen
,
1096 char *serv
, DWORD servlen
, int flags
)
1098 const struct sockaddr_in
*sin
= (const struct sockaddr_in
*)sa
;
1099 if (sa
->sa_family
!= AF_INET
)
1104 if (host
&& hostlen
> 0) {
1105 struct hostent
*ent
= NULL
;
1106 if (!(flags
& NI_NUMERICHOST
))
1107 ent
= gethostbyaddr((const char *)&sin
->sin_addr
,
1108 sizeof(sin
->sin_addr
), AF_INET
);
1111 snprintf(host
, hostlen
, "%s", ent
->h_name
);
1112 else if (flags
& NI_NAMEREQD
)
1115 snprintf(host
, hostlen
, "%s", inet_ntoa(sin
->sin_addr
));
1118 if (serv
&& servlen
> 0) {
1119 struct servent
*ent
= NULL
;
1120 if (!(flags
& NI_NUMERICSERV
))
1121 ent
= getservbyport(sin
->sin_port
,
1122 flags
& NI_DGRAM
? "udp" : "tcp");
1125 snprintf(serv
, servlen
, "%s", ent
->s_name
);
1127 snprintf(serv
, servlen
, "%d", ntohs(sin
->sin_port
));
1133 static HMODULE ipv6_dll
= NULL
;
1134 static void (WSAAPI
*ipv6_freeaddrinfo
)(struct addrinfo
*res
);
1135 static int (WSAAPI
*ipv6_getaddrinfo
)(const char *node
, const char *service
,
1136 const struct addrinfo
*hints
,
1137 struct addrinfo
**res
);
1138 static int (WSAAPI
*ipv6_getnameinfo
)(const struct sockaddr
*sa
, socklen_t salen
,
1139 char *host
, DWORD hostlen
,
1140 char *serv
, DWORD servlen
, int flags
);
1142 * gai_strerror is an inline function in the ws2tcpip.h header, so we
1143 * don't need to try to load that one dynamically.
1146 static void socket_cleanup(void)
1150 FreeLibrary(ipv6_dll
);
1152 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1153 ipv6_getaddrinfo
= getaddrinfo_stub
;
1154 ipv6_getnameinfo
= getnameinfo_stub
;
1157 static void ensure_socket_initialization(void)
1160 static int initialized
= 0;
1161 const char *libraries
[] = { "ws2_32.dll", "wship6.dll", NULL
};
1167 if (WSAStartup(MAKEWORD(2,2), &wsa
))
1168 die("unable to initialize winsock subsystem, error %d",
1171 for (name
= libraries
; *name
; name
++) {
1172 ipv6_dll
= LoadLibrary(*name
);
1176 ipv6_freeaddrinfo
= (void (WSAAPI
*)(struct addrinfo
*))
1177 GetProcAddress(ipv6_dll
, "freeaddrinfo");
1178 ipv6_getaddrinfo
= (int (WSAAPI
*)(const char *, const char *,
1179 const struct addrinfo
*,
1180 struct addrinfo
**))
1181 GetProcAddress(ipv6_dll
, "getaddrinfo");
1182 ipv6_getnameinfo
= (int (WSAAPI
*)(const struct sockaddr
*,
1183 socklen_t
, char *, DWORD
,
1184 char *, DWORD
, int))
1185 GetProcAddress(ipv6_dll
, "getnameinfo");
1186 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1187 FreeLibrary(ipv6_dll
);
1192 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1193 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1194 ipv6_getaddrinfo
= getaddrinfo_stub
;
1195 ipv6_getnameinfo
= getnameinfo_stub
;
1198 atexit(socket_cleanup
);
1202 #undef gethostbyname
1203 struct hostent
*mingw_gethostbyname(const char *host
)
1205 ensure_socket_initialization();
1206 return gethostbyname(host
);
1209 void mingw_freeaddrinfo(struct addrinfo
*res
)
1211 ipv6_freeaddrinfo(res
);
1214 int mingw_getaddrinfo(const char *node
, const char *service
,
1215 const struct addrinfo
*hints
, struct addrinfo
**res
)
1217 ensure_socket_initialization();
1218 return ipv6_getaddrinfo(node
, service
, hints
, res
);
1221 int mingw_getnameinfo(const struct sockaddr
*sa
, socklen_t salen
,
1222 char *host
, DWORD hostlen
, char *serv
, DWORD servlen
,
1225 ensure_socket_initialization();
1226 return ipv6_getnameinfo(sa
, salen
, host
, hostlen
, serv
, servlen
, flags
);
1229 int mingw_socket(int domain
, int type
, int protocol
)
1232 SOCKET s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
1233 if (s
== INVALID_SOCKET
) {
1235 * WSAGetLastError() values are regular BSD error codes
1236 * biased by WSABASEERR.
1237 * However, strerror() does not know about networking
1238 * specific errors, which are values beginning at 38 or so.
1239 * Therefore, we choose to leave the biased error code
1240 * in errno so that _if_ someone looks up the code somewhere,
1241 * then it is at least the number that are usually listed.
1243 errno
= WSAGetLastError();
1246 /* convert into a file descriptor */
1247 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
1249 return error("unable to make a socket file descriptor: %s",
1256 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1258 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1259 return connect(s
, sa
, sz
);
1263 int mingw_rename(const char *pold
, const char *pnew
)
1269 * Try native rename() first to get errno right.
1270 * It is based on MoveFile(), which cannot overwrite existing files.
1272 if (!rename(pold
, pnew
))
1274 if (errno
!= EEXIST
)
1277 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
1279 /* TODO: translate more errors */
1280 gle
= GetLastError();
1281 if (gle
== ERROR_ACCESS_DENIED
&&
1282 (attrs
= GetFileAttributes(pnew
)) != INVALID_FILE_ATTRIBUTES
) {
1283 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
1287 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
1288 SetFileAttributes(pnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
1289 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
1291 gle
= GetLastError();
1292 /* revert file attributes on failure */
1293 SetFileAttributes(pnew
, attrs
);
1296 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
1298 * We assume that some other process had the source or
1299 * destination file open at the wrong moment and retry.
1300 * In order to give the other process a higher chance to
1301 * complete its operation, we give up our time slice now.
1302 * If we have to retry again, we do sleep a bit.
1304 Sleep(delay
[tries
]);
1313 * Note that this doesn't return the actual pagesize, but
1314 * the allocation granularity. If future Windows specific git code
1315 * needs the real getpagesize function, we need to find another solution.
1317 int mingw_getpagesize(void)
1321 return si
.dwAllocationGranularity
;
1324 struct passwd
*getpwuid(int uid
)
1326 static char user_name
[100];
1327 static struct passwd p
;
1329 DWORD len
= sizeof(user_name
);
1330 if (!GetUserName(user_name
, &len
))
1332 p
.pw_name
= user_name
;
1333 p
.pw_gecos
= "unknown";
1338 static HANDLE timer_event
;
1339 static HANDLE timer_thread
;
1340 static int timer_interval
;
1341 static int one_shot
;
1342 static sig_handler_t timer_fn
= SIG_DFL
;
1344 /* The timer works like this:
1345 * The thread, ticktack(), is a trivial routine that most of the time
1346 * only waits to receive the signal to terminate. The main thread tells
1347 * the thread to terminate by setting the timer_event to the signalled
1349 * But ticktack() interrupts the wait state after the timer's interval
1350 * length to call the signal handler.
1353 static unsigned __stdcall
ticktack(void *dummy
)
1355 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1356 if (timer_fn
== SIG_DFL
)
1358 if (timer_fn
!= SIG_IGN
)
1366 static int start_timer_thread(void)
1368 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1370 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1372 return errno
= ENOMEM
,
1373 error("cannot start timer thread");
1375 return errno
= ENOMEM
,
1376 error("cannot allocate resources for timer");
1380 static void stop_timer_thread(void)
1383 SetEvent(timer_event
); /* tell thread to terminate */
1385 int rc
= WaitForSingleObject(timer_thread
, 1000);
1386 if (rc
== WAIT_TIMEOUT
)
1387 error("timer thread did not terminate timely");
1388 else if (rc
!= WAIT_OBJECT_0
)
1389 error("waiting for timer thread failed: %lu",
1391 CloseHandle(timer_thread
);
1394 CloseHandle(timer_event
);
1396 timer_thread
= NULL
;
1399 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1401 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1404 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1406 static const struct timeval zero
;
1407 static int atexit_done
;
1410 return errno
= EINVAL
,
1411 error("setitimer param 3 != NULL not implemented");
1412 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1413 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1414 return errno
= EINVAL
,
1415 error("setitimer: it_interval must be zero or eq it_value");
1418 stop_timer_thread();
1420 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1421 is_timeval_eq(&in
->it_interval
, &zero
))
1424 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1425 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1427 atexit(stop_timer_thread
);
1430 return start_timer_thread();
1433 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1436 return errno
= EINVAL
,
1437 error("sigaction only implemented for SIGALRM");
1439 return errno
= EINVAL
,
1440 error("sigaction: param 3 != NULL not implemented");
1442 timer_fn
= in
->sa_handler
;
1447 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1449 sig_handler_t old
= timer_fn
;
1451 return signal(sig
, handler
);
1456 static const char *make_backslash_path(const char *path
)
1458 static char buf
[PATH_MAX
+ 1];
1461 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1462 die("Too long path: %.*s", 60, path
);
1464 for (c
= buf
; *c
; c
++) {
1471 void mingw_open_html(const char *unixpath
)
1473 const char *htmlpath
= make_backslash_path(unixpath
);
1474 typedef HINSTANCE (WINAPI
*T
)(HWND
, const char *,
1475 const char *, const char *, const char *, INT
);
1479 shell32
= LoadLibrary("shell32.dll");
1481 die("cannot load shell32.dll");
1482 ShellExecute
= (T
)GetProcAddress(shell32
, "ShellExecuteA");
1484 die("cannot run browser");
1486 printf("Launching default browser to display HTML ...\n");
1487 ShellExecute(NULL
, "open", htmlpath
, NULL
, "\\", 0);
1489 FreeLibrary(shell32
);
1492 int link(const char *oldpath
, const char *newpath
)
1494 typedef BOOL (WINAPI
*T
)(const char*, const char*, LPSECURITY_ATTRIBUTES
);
1495 static T create_hard_link
= NULL
;
1496 if (!create_hard_link
) {
1497 create_hard_link
= (T
) GetProcAddress(
1498 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1499 if (!create_hard_link
)
1500 create_hard_link
= (T
)-1;
1502 if (create_hard_link
== (T
)-1) {
1506 if (!create_hard_link(newpath
, oldpath
, NULL
)) {
1507 errno
= err_win_to_posix(GetLastError());
1513 char *getpass(const char *prompt
)
1515 struct strbuf buf
= STRBUF_INIT
;
1517 fputs(prompt
, stderr
);
1520 if (c
== '\r' || c
== '\n')
1522 strbuf_addch(&buf
, c
);
1524 fputs("\n", stderr
);
1525 return strbuf_detach(&buf
, NULL
);
1528 #ifndef NO_MINGW_REPLACE_READDIR
1529 /* MinGW readdir implementation to avoid extra lstats for Git */
1532 struct _finddata_t dd_dta
; /* disk transfer area for this dir */
1533 struct mingw_dirent dd_dir
; /* Our own implementation, including d_type */
1534 long dd_handle
; /* _findnext handle */
1535 int dd_stat
; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
1536 char dd_name
[1]; /* given path for dir with search pattern (struct is extended) */
1539 struct dirent
*mingw_readdir(DIR *dir
)
1541 WIN32_FIND_DATAA buf
;
1543 struct mingw_DIR
*mdir
= (struct mingw_DIR
*)dir
;
1545 if (!dir
->dd_handle
) {
1546 errno
= EBADF
; /* No set_errno for mingw */
1550 if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
&& dir
->dd_stat
== 0)
1553 handle
= FindFirstFileA(dir
->dd_name
, &buf
);
1554 lasterr
= GetLastError();
1555 dir
->dd_handle
= (long)handle
;
1556 if (handle
== INVALID_HANDLE_VALUE
&& (lasterr
!= ERROR_NO_MORE_FILES
)) {
1557 errno
= err_win_to_posix(lasterr
);
1560 } else if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
) {
1562 } else if (!FindNextFileA((HANDLE
)dir
->dd_handle
, &buf
)) {
1563 DWORD lasterr
= GetLastError();
1564 FindClose((HANDLE
)dir
->dd_handle
);
1565 dir
->dd_handle
= (long)INVALID_HANDLE_VALUE
;
1566 /* POSIX says you shouldn't set errno when readdir can't
1567 find any more files; so, if another error we leave it set. */
1568 if (lasterr
!= ERROR_NO_MORE_FILES
)
1569 errno
= err_win_to_posix(lasterr
);
1573 /* We get here if `buf' contains valid data. */
1574 strcpy(dir
->dd_dir
.d_name
, buf
.cFileName
);
1577 /* Set file type, based on WIN32_FIND_DATA */
1578 mdir
->dd_dir
.d_type
= 0;
1579 if (buf
.dwFileAttributes
& FILE_ATTRIBUTE_DIRECTORY
)
1580 mdir
->dd_dir
.d_type
|= DT_DIR
;
1582 mdir
->dd_dir
.d_type
|= DT_REG
;
1584 return (struct dirent
*)&dir
->dd_dir
;
1586 #endif // !NO_MINGW_REPLACE_READDIR