1 #include "../git-compat-util.h"
6 static int err_win_to_posix(DWORD winerr
)
10 case ERROR_ACCESS_DENIED
: error
= EACCES
; break;
11 case ERROR_ACCOUNT_DISABLED
: error
= EACCES
; break;
12 case ERROR_ACCOUNT_RESTRICTION
: error
= EACCES
; break;
13 case ERROR_ALREADY_ASSIGNED
: error
= EBUSY
; break;
14 case ERROR_ALREADY_EXISTS
: error
= EEXIST
; break;
15 case ERROR_ARITHMETIC_OVERFLOW
: error
= ERANGE
; break;
16 case ERROR_BAD_COMMAND
: error
= EIO
; break;
17 case ERROR_BAD_DEVICE
: error
= ENODEV
; break;
18 case ERROR_BAD_DRIVER_LEVEL
: error
= ENXIO
; break;
19 case ERROR_BAD_EXE_FORMAT
: error
= ENOEXEC
; break;
20 case ERROR_BAD_FORMAT
: error
= ENOEXEC
; break;
21 case ERROR_BAD_LENGTH
: error
= EINVAL
; break;
22 case ERROR_BAD_PATHNAME
: error
= ENOENT
; break;
23 case ERROR_BAD_PIPE
: error
= EPIPE
; break;
24 case ERROR_BAD_UNIT
: error
= ENODEV
; break;
25 case ERROR_BAD_USERNAME
: error
= EINVAL
; break;
26 case ERROR_BROKEN_PIPE
: error
= EPIPE
; break;
27 case ERROR_BUFFER_OVERFLOW
: error
= ENAMETOOLONG
; break;
28 case ERROR_BUSY
: error
= EBUSY
; break;
29 case ERROR_BUSY_DRIVE
: error
= EBUSY
; break;
30 case ERROR_CALL_NOT_IMPLEMENTED
: error
= ENOSYS
; break;
31 case ERROR_CANNOT_MAKE
: error
= EACCES
; break;
32 case ERROR_CANTOPEN
: error
= EIO
; break;
33 case ERROR_CANTREAD
: error
= EIO
; break;
34 case ERROR_CANTWRITE
: error
= EIO
; break;
35 case ERROR_CRC
: error
= EIO
; break;
36 case ERROR_CURRENT_DIRECTORY
: error
= EACCES
; break;
37 case ERROR_DEVICE_IN_USE
: error
= EBUSY
; break;
38 case ERROR_DEV_NOT_EXIST
: error
= ENODEV
; break;
39 case ERROR_DIRECTORY
: error
= EINVAL
; break;
40 case ERROR_DIR_NOT_EMPTY
: error
= ENOTEMPTY
; break;
41 case ERROR_DISK_CHANGE
: error
= EIO
; break;
42 case ERROR_DISK_FULL
: error
= ENOSPC
; break;
43 case ERROR_DRIVE_LOCKED
: error
= EBUSY
; break;
44 case ERROR_ENVVAR_NOT_FOUND
: error
= EINVAL
; break;
45 case ERROR_EXE_MARKED_INVALID
: error
= ENOEXEC
; break;
46 case ERROR_FILENAME_EXCED_RANGE
: error
= ENAMETOOLONG
; break;
47 case ERROR_FILE_EXISTS
: error
= EEXIST
; break;
48 case ERROR_FILE_INVALID
: error
= ENODEV
; break;
49 case ERROR_FILE_NOT_FOUND
: error
= ENOENT
; break;
50 case ERROR_GEN_FAILURE
: error
= EIO
; break;
51 case ERROR_HANDLE_DISK_FULL
: error
= ENOSPC
; break;
52 case ERROR_INSUFFICIENT_BUFFER
: error
= ENOMEM
; break;
53 case ERROR_INVALID_ACCESS
: error
= EACCES
; break;
54 case ERROR_INVALID_ADDRESS
: error
= EFAULT
; break;
55 case ERROR_INVALID_BLOCK
: error
= EFAULT
; break;
56 case ERROR_INVALID_DATA
: error
= EINVAL
; break;
57 case ERROR_INVALID_DRIVE
: error
= ENODEV
; break;
58 case ERROR_INVALID_EXE_SIGNATURE
: error
= ENOEXEC
; break;
59 case ERROR_INVALID_FLAGS
: error
= EINVAL
; break;
60 case ERROR_INVALID_FUNCTION
: error
= ENOSYS
; break;
61 case ERROR_INVALID_HANDLE
: error
= EBADF
; break;
62 case ERROR_INVALID_LOGON_HOURS
: error
= EACCES
; break;
63 case ERROR_INVALID_NAME
: error
= EINVAL
; break;
64 case ERROR_INVALID_OWNER
: error
= EINVAL
; break;
65 case ERROR_INVALID_PARAMETER
: error
= EINVAL
; break;
66 case ERROR_INVALID_PASSWORD
: error
= EPERM
; break;
67 case ERROR_INVALID_PRIMARY_GROUP
: error
= EINVAL
; break;
68 case ERROR_INVALID_SIGNAL_NUMBER
: error
= EINVAL
; break;
69 case ERROR_INVALID_TARGET_HANDLE
: error
= EIO
; break;
70 case ERROR_INVALID_WORKSTATION
: error
= EACCES
; break;
71 case ERROR_IO_DEVICE
: error
= EIO
; break;
72 case ERROR_IO_INCOMPLETE
: error
= EINTR
; break;
73 case ERROR_LOCKED
: error
= EBUSY
; break;
74 case ERROR_LOCK_VIOLATION
: error
= EACCES
; break;
75 case ERROR_LOGON_FAILURE
: error
= EACCES
; break;
76 case ERROR_MAPPED_ALIGNMENT
: error
= EINVAL
; break;
77 case ERROR_META_EXPANSION_TOO_LONG
: error
= E2BIG
; break;
78 case ERROR_MORE_DATA
: error
= EPIPE
; break;
79 case ERROR_NEGATIVE_SEEK
: error
= ESPIPE
; break;
80 case ERROR_NOACCESS
: error
= EFAULT
; break;
81 case ERROR_NONE_MAPPED
: error
= EINVAL
; break;
82 case ERROR_NOT_ENOUGH_MEMORY
: error
= ENOMEM
; break;
83 case ERROR_NOT_READY
: error
= EAGAIN
; break;
84 case ERROR_NOT_SAME_DEVICE
: error
= EXDEV
; break;
85 case ERROR_NO_DATA
: error
= EPIPE
; break;
86 case ERROR_NO_MORE_SEARCH_HANDLES
: error
= EIO
; break;
87 case ERROR_NO_PROC_SLOTS
: error
= EAGAIN
; break;
88 case ERROR_NO_SUCH_PRIVILEGE
: error
= EACCES
; break;
89 case ERROR_OPEN_FAILED
: error
= EIO
; break;
90 case ERROR_OPEN_FILES
: error
= EBUSY
; break;
91 case ERROR_OPERATION_ABORTED
: error
= EINTR
; break;
92 case ERROR_OUTOFMEMORY
: error
= ENOMEM
; break;
93 case ERROR_PASSWORD_EXPIRED
: error
= EACCES
; break;
94 case ERROR_PATH_BUSY
: error
= EBUSY
; break;
95 case ERROR_PATH_NOT_FOUND
: error
= ENOENT
; break;
96 case ERROR_PIPE_BUSY
: error
= EBUSY
; break;
97 case ERROR_PIPE_CONNECTED
: error
= EPIPE
; break;
98 case ERROR_PIPE_LISTENING
: error
= EPIPE
; break;
99 case ERROR_PIPE_NOT_CONNECTED
: error
= EPIPE
; break;
100 case ERROR_PRIVILEGE_NOT_HELD
: error
= EACCES
; break;
101 case ERROR_READ_FAULT
: error
= EIO
; break;
102 case ERROR_SEEK
: error
= EIO
; break;
103 case ERROR_SEEK_ON_DEVICE
: error
= ESPIPE
; break;
104 case ERROR_SHARING_BUFFER_EXCEEDED
: error
= ENFILE
; break;
105 case ERROR_SHARING_VIOLATION
: error
= EACCES
; break;
106 case ERROR_STACK_OVERFLOW
: error
= ENOMEM
; break;
107 case ERROR_SWAPERROR
: error
= ENOENT
; break;
108 case ERROR_TOO_MANY_MODULES
: error
= EMFILE
; break;
109 case ERROR_TOO_MANY_OPEN_FILES
: error
= EMFILE
; break;
110 case ERROR_UNRECOGNIZED_MEDIA
: error
= ENXIO
; break;
111 case ERROR_UNRECOGNIZED_VOLUME
: error
= ENODEV
; break;
112 case ERROR_WAIT_NO_CHILDREN
: error
= ECHILD
; break;
113 case ERROR_WRITE_FAULT
: error
= EIO
; break;
114 case ERROR_WRITE_PROTECT
: error
= EROFS
; break;
120 int mingw_open (const char *filename
, int oflags
, ...)
126 va_start(args
, oflags
);
127 mode
= va_arg(args
, int);
130 if (!strcmp(filename
, "/dev/null"))
133 fd
= open(filename
, oflags
, mode
);
135 if (fd
< 0 && (oflags
& O_CREAT
) && errno
== EACCES
) {
136 DWORD attrs
= GetFileAttributes(filename
);
137 if (attrs
!= INVALID_FILE_ATTRIBUTES
&& (attrs
& FILE_ATTRIBUTE_DIRECTORY
))
143 static inline time_t filetime_to_time_t(const FILETIME
*ft
)
145 long long winTime
= ((long long)ft
->dwHighDateTime
<< 32) + ft
->dwLowDateTime
;
146 winTime
-= 116444736000000000LL; /* Windows to Unix Epoch conversion */
147 winTime
/= 10000000; /* Nano to seconds resolution */
148 return (time_t)winTime
;
151 /* We keep the do_lstat code in a separate function to avoid recursion.
152 * When a path ends with a slash, the stat will fail with ENOENT. In
153 * this case, we strip the trailing slashes and stat again.
155 static int do_lstat(const char *file_name
, struct stat
*buf
)
157 WIN32_FILE_ATTRIBUTE_DATA fdata
;
159 if (!(errno
= get_file_attr(file_name
, &fdata
))) {
164 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
165 buf
->st_size
= fdata
.nFileSizeLow
|
166 (((off_t
)fdata
.nFileSizeHigh
)<<32);
167 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
168 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
169 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
170 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
176 /* We provide our own lstat/fstat functions, since the provided
177 * lstat/fstat functions are so slow. These stat functions are
178 * tailored for Git's usage (read: fast), and are not meant to be
179 * complete. Note that Git stat()s are redirected to mingw_lstat()
180 * too, since Windows doesn't really handle symlinks that well.
182 int mingw_lstat(const char *file_name
, struct stat
*buf
)
185 static char alt_name
[PATH_MAX
];
187 if (!do_lstat(file_name
, buf
))
190 /* if file_name ended in a '/', Windows returned ENOENT;
191 * try again without trailing slashes
196 namelen
= strlen(file_name
);
197 if (namelen
&& file_name
[namelen
-1] != '/')
199 while (namelen
&& file_name
[namelen
-1] == '/')
201 if (!namelen
|| namelen
>= PATH_MAX
)
204 memcpy(alt_name
, file_name
, namelen
);
205 alt_name
[namelen
] = 0;
206 return do_lstat(alt_name
, buf
);
210 int mingw_fstat(int fd
, struct stat
*buf
)
212 HANDLE fh
= (HANDLE
)_get_osfhandle(fd
);
213 BY_HANDLE_FILE_INFORMATION fdata
;
215 if (fh
== INVALID_HANDLE_VALUE
) {
219 /* direct non-file handles to MS's fstat() */
220 if (GetFileType(fh
) != FILE_TYPE_DISK
)
221 return _fstati64(fd
, buf
);
223 if (GetFileInformationByHandle(fh
, &fdata
)) {
228 buf
->st_mode
= file_attr_to_st_mode(fdata
.dwFileAttributes
);
229 buf
->st_size
= fdata
.nFileSizeLow
|
230 (((off_t
)fdata
.nFileSizeHigh
)<<32);
231 buf
->st_dev
= buf
->st_rdev
= 0; /* not used by Git */
232 buf
->st_atime
= filetime_to_time_t(&(fdata
.ftLastAccessTime
));
233 buf
->st_mtime
= filetime_to_time_t(&(fdata
.ftLastWriteTime
));
234 buf
->st_ctime
= filetime_to_time_t(&(fdata
.ftCreationTime
));
241 static inline void time_t_to_filetime(time_t t
, FILETIME
*ft
)
243 long long winTime
= t
* 10000000LL + 116444736000000000LL;
244 ft
->dwLowDateTime
= winTime
;
245 ft
->dwHighDateTime
= winTime
>> 32;
248 int mingw_utime (const char *file_name
, const struct utimbuf
*times
)
253 /* must have write permission */
254 if ((fh
= open(file_name
, O_RDWR
| O_BINARY
)) < 0)
257 time_t_to_filetime(times
->modtime
, &mft
);
258 time_t_to_filetime(times
->actime
, &aft
);
259 if (!SetFileTime((HANDLE
)_get_osfhandle(fh
), NULL
, &aft
, &mft
)) {
268 unsigned int sleep (unsigned int seconds
)
274 int mkstemp(char *template)
276 char *filename
= mktemp(template);
277 if (filename
== NULL
)
279 return open(filename
, O_RDWR
| O_CREAT
, 0600);
282 int gettimeofday(struct timeval
*tv
, void *tz
)
287 tm
.tm_year
= st
.wYear
-1900;
288 tm
.tm_mon
= st
.wMonth
-1;
289 tm
.tm_mday
= st
.wDay
;
290 tm
.tm_hour
= st
.wHour
;
291 tm
.tm_min
= st
.wMinute
;
292 tm
.tm_sec
= st
.wSecond
;
293 tv
->tv_sec
= tm_to_time_t(&tm
);
296 tv
->tv_usec
= st
.wMilliseconds
*1000;
300 int pipe(int filedes
[2])
305 if (_pipe(filedes
, 8192, 0) < 0)
308 parent
= GetCurrentProcess();
310 if (!DuplicateHandle (parent
, (HANDLE
)_get_osfhandle(filedes
[0]),
311 parent
, &h
[0], 0, FALSE
, DUPLICATE_SAME_ACCESS
)) {
316 if (!DuplicateHandle (parent
, (HANDLE
)_get_osfhandle(filedes
[1]),
317 parent
, &h
[1], 0, FALSE
, DUPLICATE_SAME_ACCESS
)) {
323 fd
= _open_osfhandle((int)h
[0], O_NOINHERIT
);
333 fd
= _open_osfhandle((int)h
[1], O_NOINHERIT
);
345 int poll(struct pollfd
*ufds
, unsigned int nfds
, int timeout
)
354 return errno
= EINVAL
, error("poll timeout not supported");
357 /* When there is only one fd to wait for, then we pretend that
358 * input is available and let the actual wait happen when the
359 * caller invokes read().
362 if (!(ufds
[0].events
& POLLIN
))
363 return errno
= EINVAL
, error("POLLIN not set");
364 ufds
[0].revents
= POLLIN
;
370 for (i
= 0; i
< nfds
; i
++) {
372 HANDLE h
= (HANDLE
) _get_osfhandle(ufds
[i
].fd
);
373 if (h
== INVALID_HANDLE_VALUE
)
374 return -1; /* errno was set */
376 if (!(ufds
[i
].events
& POLLIN
))
377 return errno
= EINVAL
, error("POLLIN not set");
379 /* this emulation works only for pipes */
380 if (!PeekNamedPipe(h
, NULL
, 0, NULL
, &avail
, NULL
)) {
381 int err
= GetLastError();
382 if (err
== ERROR_BROKEN_PIPE
) {
383 ufds
[i
].revents
= POLLHUP
;
387 return error("PeekNamedPipe failed,"
388 " GetLastError: %u", err
);
391 ufds
[i
].revents
= POLLIN
;
397 /* The only times that we spin here is when the process
398 * that is connected through the pipes is waiting for
399 * its own input data to become available. But since
400 * the process (pack-objects) is itself CPU intensive,
401 * it will happily pick up the time slice that we are
402 * relinquishing here.
410 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
412 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
413 memcpy(result
, gmtime(timep
), sizeof(struct tm
));
417 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
419 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
420 memcpy(result
, localtime(timep
), sizeof(struct tm
));
425 char *mingw_getcwd(char *pointer
, int len
)
428 char *ret
= getcwd(pointer
, len
);
431 for (i
= 0; pointer
[i
]; i
++)
432 if (pointer
[i
] == '\\')
438 char *mingw_getenv(const char *name
)
440 char *result
= getenv(name
);
441 if (!result
&& !strcmp(name
, "TMPDIR")) {
442 /* on Windows it is TMP and TEMP */
443 result
= getenv("TMP");
445 result
= getenv("TEMP");
451 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
452 * (Parsing C++ Command-Line Arguments)
454 static const char *quote_arg(const char *arg
)
456 /* count chars to quote */
458 int force_quotes
= 0;
461 if (!*p
) force_quotes
= 1;
463 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
467 else if (*p
== '\\') {
481 if (!force_quotes
&& n
== 0)
484 /* insert \ where necessary */
485 d
= q
= xmalloc(len
+n
+3);
490 else if (*arg
== '\\') {
492 while (*arg
== '\\') {
509 static const char *parse_interpreter(const char *cmd
)
511 static char buf
[100];
515 /* don't even try a .exe */
517 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
520 fd
= open(cmd
, O_RDONLY
);
523 n
= read(fd
, buf
, sizeof(buf
)-1);
525 if (n
< 4) /* at least '#!/x' and not error */
528 if (buf
[0] != '#' || buf
[1] != '!')
531 p
= buf
+ strcspn(buf
, "\r\n");
536 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
539 if ((opt
= strchr(p
+1, ' ')))
545 * Splits the PATH into parts.
547 static char **get_path_split(void)
549 char *p
, **path
, *envpath
= getenv("PATH");
552 if (!envpath
|| !*envpath
)
555 envpath
= xstrdup(envpath
);
561 if (*dir
) { /* not earlier, catches series of ; */
568 path
= xmalloc((n
+1)*sizeof(char *));
573 path
[i
++] = xstrdup(p
);
583 static void free_path_split(char **path
)
596 * exe_only means that we only want to detect .exe files, but not scripts
597 * (which do not have an extension)
599 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
602 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
604 if (!isexe
&& access(path
, F_OK
) == 0)
605 return xstrdup(path
);
606 path
[strlen(path
)-4] = '\0';
607 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
608 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
609 return xstrdup(path
);
614 * Determines the absolute path of cmd using the the split path in path.
615 * If cmd contains a slash or backslash, no lookup is performed.
617 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
620 int len
= strlen(cmd
);
621 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
623 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
626 while (!prog
&& *path
)
627 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
632 static int env_compare(const void *a
, const void *b
)
636 return strcasecmp(*ea
, *eb
);
639 static pid_t
mingw_spawnve(const char *cmd
, const char **argv
, char **env
,
643 PROCESS_INFORMATION pi
;
644 struct strbuf envblk
, args
;
648 /* Determine whether or not we are associated to a console */
649 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
650 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
651 FILE_ATTRIBUTE_NORMAL
, NULL
);
652 if (cons
== INVALID_HANDLE_VALUE
) {
653 /* There is no console associated with this process.
654 * Since the child is a console process, Windows
655 * would normally create a console window. But
656 * since we'll be redirecting std streams, we do
657 * not need the console.
658 * It is necessary to use DETACHED_PROCESS
659 * instead of CREATE_NO_WINDOW to make ssh
660 * recognize that it has no console.
662 flags
= DETACHED_PROCESS
;
664 /* There is already a console. If we specified
665 * DETACHED_PROCESS here, too, Windows would
666 * disassociate the child from the console.
667 * The same is true for CREATE_NO_WINDOW.
673 memset(&si
, 0, sizeof(si
));
675 si
.dwFlags
= STARTF_USESTDHANDLES
;
676 si
.hStdInput
= (HANDLE
) _get_osfhandle(0);
677 si
.hStdOutput
= (HANDLE
) _get_osfhandle(1);
678 si
.hStdError
= (HANDLE
) _get_osfhandle(2);
680 /* concatenate argv, quoting args as we go */
681 strbuf_init(&args
, 0);
683 char *quoted
= (char *)quote_arg(cmd
);
684 strbuf_addstr(&args
, quoted
);
688 for (; *argv
; argv
++) {
689 char *quoted
= (char *)quote_arg(*argv
);
691 strbuf_addch(&args
, ' ');
692 strbuf_addstr(&args
, quoted
);
699 char **e
, **sorted_env
;
701 for (e
= env
; *e
; e
++)
704 /* environment must be sorted */
705 sorted_env
= xmalloc(sizeof(*sorted_env
) * (count
+ 1));
706 memcpy(sorted_env
, env
, sizeof(*sorted_env
) * (count
+ 1));
707 qsort(sorted_env
, count
, sizeof(*sorted_env
), env_compare
);
709 strbuf_init(&envblk
, 0);
710 for (e
= sorted_env
; *e
; e
++) {
711 strbuf_addstr(&envblk
, *e
);
712 strbuf_addch(&envblk
, '\0');
717 memset(&pi
, 0, sizeof(pi
));
718 ret
= CreateProcess(cmd
, args
.buf
, NULL
, NULL
, TRUE
, flags
,
719 env
? envblk
.buf
: NULL
, NULL
, &si
, &pi
);
722 strbuf_release(&envblk
);
723 strbuf_release(&args
);
729 CloseHandle(pi
.hThread
);
730 return (pid_t
)pi
.hProcess
;
733 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **env
)
736 char **path
= get_path_split();
737 char *prog
= path_lookup(cmd
, path
, 0);
744 const char *interpr
= parse_interpreter(prog
);
747 const char *argv0
= argv
[0];
748 char *iprog
= path_lookup(interpr
, path
, 1);
755 pid
= mingw_spawnve(iprog
, argv
, env
, 1);
761 pid
= mingw_spawnve(prog
, argv
, env
, 0);
764 free_path_split(path
);
768 static int try_shell_exec(const char *cmd
, char *const *argv
, char **env
)
770 const char *interpr
= parse_interpreter(cmd
);
777 path
= get_path_split();
778 prog
= path_lookup(interpr
, path
, 1);
782 while (argv
[argc
]) argc
++;
783 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
784 argv2
[0] = (char *)cmd
; /* full path to the script file */
785 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
786 pid
= mingw_spawnve(prog
, argv2
, env
, 1);
789 if (waitpid(pid
, &status
, 0) < 0)
793 pid
= 1; /* indicate that we tried but failed */
797 free_path_split(path
);
801 static void mingw_execve(const char *cmd
, char *const *argv
, char *const *env
)
803 /* check if git_command is a shell script */
804 if (!try_shell_exec(cmd
, argv
, (char **)env
)) {
807 pid
= mingw_spawnve(cmd
, (const char **)argv
, (char **)env
, 0);
810 if (waitpid(pid
, &status
, 0) < 0)
816 void mingw_execvp(const char *cmd
, char *const *argv
)
818 char **path
= get_path_split();
819 char *prog
= path_lookup(cmd
, path
, 0);
822 mingw_execve(prog
, argv
, environ
);
827 free_path_split(path
);
830 static char **copy_environ(void)
836 env
= xmalloc((i
+1)*sizeof(*env
));
837 for (i
= 0; environ
[i
]; i
++)
838 env
[i
] = xstrdup(environ
[i
]);
843 void free_environ(char **env
)
846 for (i
= 0; env
[i
]; i
++)
851 static int lookup_env(char **env
, const char *name
, size_t nmln
)
855 for (i
= 0; env
[i
]; i
++) {
856 if (0 == strncmp(env
[i
], name
, nmln
)
857 && '=' == env
[i
][nmln
])
865 * If name contains '=', then sets the variable, otherwise it unsets it
867 static char **env_setenv(char **env
, const char *name
)
869 char *eq
= strchrnul(name
, '=');
870 int i
= lookup_env(env
, name
, eq
-name
);
874 for (i
= 0; env
[i
]; i
++)
876 env
= xrealloc(env
, (i
+2)*sizeof(*env
));
877 env
[i
] = xstrdup(name
);
884 env
[i
] = xstrdup(name
);
893 * Copies global environ and adjusts variables as specified by vars.
895 char **make_augmented_environ(const char *const *vars
)
897 char **env
= copy_environ();
900 env
= env_setenv(env
, *vars
++);
904 /* this is the first function to call into WS_32; initialize it */
906 struct hostent
*mingw_gethostbyname(const char *host
)
910 if (WSAStartup(MAKEWORD(2,2), &wsa
))
911 die("unable to initialize winsock subsystem, error %d",
913 atexit((void(*)(void)) WSACleanup
);
914 return gethostbyname(host
);
917 int mingw_socket(int domain
, int type
, int protocol
)
920 SOCKET s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
921 if (s
== INVALID_SOCKET
) {
923 * WSAGetLastError() values are regular BSD error codes
924 * biased by WSABASEERR.
925 * However, strerror() does not know about networking
926 * specific errors, which are values beginning at 38 or so.
927 * Therefore, we choose to leave the biased error code
928 * in errno so that _if_ someone looks up the code somewhere,
929 * then it is at least the number that are usually listed.
931 errno
= WSAGetLastError();
934 /* convert into a file descriptor */
935 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
937 return error("unable to make a socket file descriptor: %s",
944 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
946 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
947 return connect(s
, sa
, sz
);
951 int mingw_rename(const char *pold
, const char *pnew
)
955 static const int delay
[] = { 0, 1, 10, 20, 40 };
958 * Try native rename() first to get errno right.
959 * It is based on MoveFile(), which cannot overwrite existing files.
961 if (!rename(pold
, pnew
))
966 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
968 /* TODO: translate more errors */
969 gle
= GetLastError();
970 if (gle
== ERROR_ACCESS_DENIED
&&
971 (attrs
= GetFileAttributes(pnew
)) != INVALID_FILE_ATTRIBUTES
) {
972 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
976 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
977 SetFileAttributes(pnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
978 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
980 gle
= GetLastError();
981 /* revert file attributes on failure */
982 SetFileAttributes(pnew
, attrs
);
985 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
987 * We assume that some other process had the source or
988 * destination file open at the wrong moment and retry.
989 * In order to give the other process a higher chance to
990 * complete its operation, we give up our time slice now.
991 * If we have to retry again, we do sleep a bit.
1001 struct passwd
*getpwuid(int uid
)
1003 static char user_name
[100];
1004 static struct passwd p
;
1006 DWORD len
= sizeof(user_name
);
1007 if (!GetUserName(user_name
, &len
))
1009 p
.pw_name
= user_name
;
1010 p
.pw_gecos
= "unknown";
1015 static HANDLE timer_event
;
1016 static HANDLE timer_thread
;
1017 static int timer_interval
;
1018 static int one_shot
;
1019 static sig_handler_t timer_fn
= SIG_DFL
;
1021 /* The timer works like this:
1022 * The thread, ticktack(), is a trivial routine that most of the time
1023 * only waits to receive the signal to terminate. The main thread tells
1024 * the thread to terminate by setting the timer_event to the signalled
1026 * But ticktack() interrupts the wait state after the timer's interval
1027 * length to call the signal handler.
1030 static unsigned __stdcall
ticktack(void *dummy
)
1032 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1033 if (timer_fn
== SIG_DFL
)
1035 if (timer_fn
!= SIG_IGN
)
1043 static int start_timer_thread(void)
1045 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1047 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1049 return errno
= ENOMEM
,
1050 error("cannot start timer thread");
1052 return errno
= ENOMEM
,
1053 error("cannot allocate resources for timer");
1057 static void stop_timer_thread(void)
1060 SetEvent(timer_event
); /* tell thread to terminate */
1062 int rc
= WaitForSingleObject(timer_thread
, 1000);
1063 if (rc
== WAIT_TIMEOUT
)
1064 error("timer thread did not terminate timely");
1065 else if (rc
!= WAIT_OBJECT_0
)
1066 error("waiting for timer thread failed: %lu",
1068 CloseHandle(timer_thread
);
1071 CloseHandle(timer_event
);
1073 timer_thread
= NULL
;
1076 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1078 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1081 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1083 static const struct timeval zero
;
1084 static int atexit_done
;
1087 return errno
= EINVAL
,
1088 error("setitimer param 3 != NULL not implemented");
1089 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1090 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1091 return errno
= EINVAL
,
1092 error("setitimer: it_interval must be zero or eq it_value");
1095 stop_timer_thread();
1097 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1098 is_timeval_eq(&in
->it_interval
, &zero
))
1101 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1102 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1104 atexit(stop_timer_thread
);
1107 return start_timer_thread();
1110 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1113 return errno
= EINVAL
,
1114 error("sigaction only implemented for SIGALRM");
1116 return errno
= EINVAL
,
1117 error("sigaction: param 3 != NULL not implemented");
1119 timer_fn
= in
->sa_handler
;
1124 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1126 sig_handler_t old
= timer_fn
;
1128 return signal(sig
, handler
);
1133 static const char *make_backslash_path(const char *path
)
1135 static char buf
[PATH_MAX
+ 1];
1138 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1139 die("Too long path: %.*s", 60, path
);
1141 for (c
= buf
; *c
; c
++) {
1148 void mingw_open_html(const char *unixpath
)
1150 const char *htmlpath
= make_backslash_path(unixpath
);
1151 printf("Launching default browser to display HTML ...\n");
1152 ShellExecute(NULL
, "open", htmlpath
, NULL
, "\\", 0);
1155 int link(const char *oldpath
, const char *newpath
)
1157 typedef BOOL (WINAPI
*T
)(const char*, const char*, LPSECURITY_ATTRIBUTES
);
1158 static T create_hard_link
= NULL
;
1159 if (!create_hard_link
) {
1160 create_hard_link
= (T
) GetProcAddress(
1161 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1162 if (!create_hard_link
)
1163 create_hard_link
= (T
)-1;
1165 if (create_hard_link
== (T
)-1) {
1169 if (!create_hard_link(newpath
, oldpath
, NULL
)) {
1170 errno
= err_win_to_posix(GetLastError());
1176 char *getpass(const char *prompt
)
1178 struct strbuf buf
= STRBUF_INIT
;
1180 fputs(prompt
, stderr
);
1183 if (c
== '\r' || c
== '\n')
1185 strbuf_addch(&buf
, c
);
1187 fputs("\n", stderr
);
1188 return strbuf_detach(&buf
, NULL
);
1191 #ifndef NO_MINGW_REPLACE_READDIR
1192 /* MinGW readdir implementation to avoid extra lstats for Git */
1195 struct _finddata_t dd_dta
; /* disk transfer area for this dir */
1196 struct mingw_dirent dd_dir
; /* Our own implementation, including d_type */
1197 long dd_handle
; /* _findnext handle */
1198 int dd_stat
; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
1199 char dd_name
[1]; /* given path for dir with search pattern (struct is extended) */
1202 struct dirent
*mingw_readdir(DIR *dir
)
1204 WIN32_FIND_DATAA buf
;
1206 struct mingw_DIR
*mdir
= (struct mingw_DIR
*)dir
;
1208 if (!dir
->dd_handle
) {
1209 errno
= EBADF
; /* No set_errno for mingw */
1213 if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
&& dir
->dd_stat
== 0)
1216 handle
= FindFirstFileA(dir
->dd_name
, &buf
);
1217 lasterr
= GetLastError();
1218 dir
->dd_handle
= (long)handle
;
1219 if (handle
== INVALID_HANDLE_VALUE
&& (lasterr
!= ERROR_NO_MORE_FILES
)) {
1220 errno
= err_win_to_posix(lasterr
);
1223 } else if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
) {
1225 } else if (!FindNextFileA((HANDLE
)dir
->dd_handle
, &buf
)) {
1226 DWORD lasterr
= GetLastError();
1227 FindClose((HANDLE
)dir
->dd_handle
);
1228 dir
->dd_handle
= (long)INVALID_HANDLE_VALUE
;
1229 /* POSIX says you shouldn't set errno when readdir can't
1230 find any more files; so, if another error we leave it set. */
1231 if (lasterr
!= ERROR_NO_MORE_FILES
)
1232 errno
= err_win_to_posix(lasterr
);
1236 /* We get here if `buf' contains valid data. */
1237 strcpy(dir
->dd_dir
.d_name
, buf
.cFileName
);
1240 /* Set file type, based on WIN32_FIND_DATA */
1241 mdir
->dd_dir
.d_type
= 0;
1242 if (buf
.dwFileAttributes
& FILE_ATTRIBUTE_DIRECTORY
)
1243 mdir
->dd_dir
.d_type
|= DT_DIR
;
1245 mdir
->dd_dir
.d_type
|= DT_REG
;
1247 return (struct dirent
*)&dir
->dd_dir
;
1249 #endif // !NO_MINGW_REPLACE_READDIR