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])
304 /* this creates non-inheritable handles */
305 if (!CreatePipe(&h
[0], &h
[1], NULL
, 8192)) {
306 errno
= err_win_to_posix(GetLastError());
309 filedes
[0] = _open_osfhandle((int)h
[0], O_NOINHERIT
);
310 if (filedes
[0] < 0) {
315 filedes
[1] = _open_osfhandle((int)h
[1], O_NOINHERIT
);
316 if (filedes
[0] < 0) {
324 int poll(struct pollfd
*ufds
, unsigned int nfds
, int timeout
)
333 return errno
= EINVAL
, error("poll timeout not supported");
336 /* When there is only one fd to wait for, then we pretend that
337 * input is available and let the actual wait happen when the
338 * caller invokes read().
341 if (!(ufds
[0].events
& POLLIN
))
342 return errno
= EINVAL
, error("POLLIN not set");
343 ufds
[0].revents
= POLLIN
;
349 for (i
= 0; i
< nfds
; i
++) {
351 HANDLE h
= (HANDLE
) _get_osfhandle(ufds
[i
].fd
);
352 if (h
== INVALID_HANDLE_VALUE
)
353 return -1; /* errno was set */
355 if (!(ufds
[i
].events
& POLLIN
))
356 return errno
= EINVAL
, error("POLLIN not set");
358 /* this emulation works only for pipes */
359 if (!PeekNamedPipe(h
, NULL
, 0, NULL
, &avail
, NULL
)) {
360 int err
= GetLastError();
361 if (err
== ERROR_BROKEN_PIPE
) {
362 ufds
[i
].revents
= POLLHUP
;
366 return error("PeekNamedPipe failed,"
367 " GetLastError: %u", err
);
370 ufds
[i
].revents
= POLLIN
;
376 /* The only times that we spin here is when the process
377 * that is connected through the pipes is waiting for
378 * its own input data to become available. But since
379 * the process (pack-objects) is itself CPU intensive,
380 * it will happily pick up the time slice that we are
381 * relinquishing here.
389 struct tm
*gmtime_r(const time_t *timep
, struct tm
*result
)
391 /* gmtime() in MSVCRT.DLL is thread-safe, but not reentrant */
392 memcpy(result
, gmtime(timep
), sizeof(struct tm
));
396 struct tm
*localtime_r(const time_t *timep
, struct tm
*result
)
398 /* localtime() in MSVCRT.DLL is thread-safe, but not reentrant */
399 memcpy(result
, localtime(timep
), sizeof(struct tm
));
404 char *mingw_getcwd(char *pointer
, int len
)
407 char *ret
= getcwd(pointer
, len
);
410 for (i
= 0; pointer
[i
]; i
++)
411 if (pointer
[i
] == '\\')
417 char *mingw_getenv(const char *name
)
419 char *result
= getenv(name
);
420 if (!result
&& !strcmp(name
, "TMPDIR")) {
421 /* on Windows it is TMP and TEMP */
422 result
= getenv("TMP");
424 result
= getenv("TEMP");
430 * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
431 * (Parsing C++ Command-Line Arguments)
433 static const char *quote_arg(const char *arg
)
435 /* count chars to quote */
437 int force_quotes
= 0;
440 if (!*p
) force_quotes
= 1;
442 if (isspace(*p
) || *p
== '*' || *p
== '?' || *p
== '{' || *p
== '\'')
446 else if (*p
== '\\') {
460 if (!force_quotes
&& n
== 0)
463 /* insert \ where necessary */
464 d
= q
= xmalloc(len
+n
+3);
469 else if (*arg
== '\\') {
471 while (*arg
== '\\') {
488 static const char *parse_interpreter(const char *cmd
)
490 static char buf
[100];
494 /* don't even try a .exe */
496 if (n
>= 4 && !strcasecmp(cmd
+n
-4, ".exe"))
499 fd
= open(cmd
, O_RDONLY
);
502 n
= read(fd
, buf
, sizeof(buf
)-1);
504 if (n
< 4) /* at least '#!/x' and not error */
507 if (buf
[0] != '#' || buf
[1] != '!')
510 p
= buf
+ strcspn(buf
, "\r\n");
515 if (!(p
= strrchr(buf
+2, '/')) && !(p
= strrchr(buf
+2, '\\')))
518 if ((opt
= strchr(p
+1, ' ')))
524 * Splits the PATH into parts.
526 static char **get_path_split(void)
528 char *p
, **path
, *envpath
= getenv("PATH");
531 if (!envpath
|| !*envpath
)
534 envpath
= xstrdup(envpath
);
540 if (*dir
) { /* not earlier, catches series of ; */
547 path
= xmalloc((n
+1)*sizeof(char *));
552 path
[i
++] = xstrdup(p
);
562 static void free_path_split(char **path
)
575 * exe_only means that we only want to detect .exe files, but not scripts
576 * (which do not have an extension)
578 static char *lookup_prog(const char *dir
, const char *cmd
, int isexe
, int exe_only
)
581 snprintf(path
, sizeof(path
), "%s/%s.exe", dir
, cmd
);
583 if (!isexe
&& access(path
, F_OK
) == 0)
584 return xstrdup(path
);
585 path
[strlen(path
)-4] = '\0';
586 if ((!exe_only
|| isexe
) && access(path
, F_OK
) == 0)
587 if (!(GetFileAttributes(path
) & FILE_ATTRIBUTE_DIRECTORY
))
588 return xstrdup(path
);
593 * Determines the absolute path of cmd using the the split path in path.
594 * If cmd contains a slash or backslash, no lookup is performed.
596 static char *path_lookup(const char *cmd
, char **path
, int exe_only
)
599 int len
= strlen(cmd
);
600 int isexe
= len
>= 4 && !strcasecmp(cmd
+len
-4, ".exe");
602 if (strchr(cmd
, '/') || strchr(cmd
, '\\'))
605 while (!prog
&& *path
)
606 prog
= lookup_prog(*path
++, cmd
, isexe
, exe_only
);
611 static int env_compare(const void *a
, const void *b
)
615 return strcasecmp(*ea
, *eb
);
618 static pid_t
mingw_spawnve(const char *cmd
, const char **argv
, char **env
,
622 PROCESS_INFORMATION pi
;
623 struct strbuf envblk
, args
;
627 /* Determine whether or not we are associated to a console */
628 HANDLE cons
= CreateFile("CONOUT$", GENERIC_WRITE
,
629 FILE_SHARE_WRITE
, NULL
, OPEN_EXISTING
,
630 FILE_ATTRIBUTE_NORMAL
, NULL
);
631 if (cons
== INVALID_HANDLE_VALUE
) {
632 /* There is no console associated with this process.
633 * Since the child is a console process, Windows
634 * would normally create a console window. But
635 * since we'll be redirecting std streams, we do
636 * not need the console.
637 * It is necessary to use DETACHED_PROCESS
638 * instead of CREATE_NO_WINDOW to make ssh
639 * recognize that it has no console.
641 flags
= DETACHED_PROCESS
;
643 /* There is already a console. If we specified
644 * DETACHED_PROCESS here, too, Windows would
645 * disassociate the child from the console.
646 * The same is true for CREATE_NO_WINDOW.
652 memset(&si
, 0, sizeof(si
));
654 si
.dwFlags
= STARTF_USESTDHANDLES
;
655 si
.hStdInput
= (HANDLE
) _get_osfhandle(0);
656 si
.hStdOutput
= (HANDLE
) _get_osfhandle(1);
657 si
.hStdError
= (HANDLE
) _get_osfhandle(2);
659 /* concatenate argv, quoting args as we go */
660 strbuf_init(&args
, 0);
662 char *quoted
= (char *)quote_arg(cmd
);
663 strbuf_addstr(&args
, quoted
);
667 for (; *argv
; argv
++) {
668 char *quoted
= (char *)quote_arg(*argv
);
670 strbuf_addch(&args
, ' ');
671 strbuf_addstr(&args
, quoted
);
678 char **e
, **sorted_env
;
680 for (e
= env
; *e
; e
++)
683 /* environment must be sorted */
684 sorted_env
= xmalloc(sizeof(*sorted_env
) * (count
+ 1));
685 memcpy(sorted_env
, env
, sizeof(*sorted_env
) * (count
+ 1));
686 qsort(sorted_env
, count
, sizeof(*sorted_env
), env_compare
);
688 strbuf_init(&envblk
, 0);
689 for (e
= sorted_env
; *e
; e
++) {
690 strbuf_addstr(&envblk
, *e
);
691 strbuf_addch(&envblk
, '\0');
696 memset(&pi
, 0, sizeof(pi
));
697 ret
= CreateProcess(cmd
, args
.buf
, NULL
, NULL
, TRUE
, flags
,
698 env
? envblk
.buf
: NULL
, NULL
, &si
, &pi
);
701 strbuf_release(&envblk
);
702 strbuf_release(&args
);
708 CloseHandle(pi
.hThread
);
709 return (pid_t
)pi
.hProcess
;
712 pid_t
mingw_spawnvpe(const char *cmd
, const char **argv
, char **env
)
715 char **path
= get_path_split();
716 char *prog
= path_lookup(cmd
, path
, 0);
723 const char *interpr
= parse_interpreter(prog
);
726 const char *argv0
= argv
[0];
727 char *iprog
= path_lookup(interpr
, path
, 1);
734 pid
= mingw_spawnve(iprog
, argv
, env
, 1);
740 pid
= mingw_spawnve(prog
, argv
, env
, 0);
743 free_path_split(path
);
747 static int try_shell_exec(const char *cmd
, char *const *argv
, char **env
)
749 const char *interpr
= parse_interpreter(cmd
);
756 path
= get_path_split();
757 prog
= path_lookup(interpr
, path
, 1);
761 while (argv
[argc
]) argc
++;
762 argv2
= xmalloc(sizeof(*argv
) * (argc
+1));
763 argv2
[0] = (char *)cmd
; /* full path to the script file */
764 memcpy(&argv2
[1], &argv
[1], sizeof(*argv
) * argc
);
765 pid
= mingw_spawnve(prog
, argv2
, env
, 1);
768 if (waitpid(pid
, &status
, 0) < 0)
772 pid
= 1; /* indicate that we tried but failed */
776 free_path_split(path
);
780 static void mingw_execve(const char *cmd
, char *const *argv
, char *const *env
)
782 /* check if git_command is a shell script */
783 if (!try_shell_exec(cmd
, argv
, (char **)env
)) {
786 pid
= mingw_spawnve(cmd
, (const char **)argv
, (char **)env
, 0);
789 if (waitpid(pid
, &status
, 0) < 0)
795 void mingw_execvp(const char *cmd
, char *const *argv
)
797 char **path
= get_path_split();
798 char *prog
= path_lookup(cmd
, path
, 0);
801 mingw_execve(prog
, argv
, environ
);
806 free_path_split(path
);
809 static char **copy_environ(void)
815 env
= xmalloc((i
+1)*sizeof(*env
));
816 for (i
= 0; environ
[i
]; i
++)
817 env
[i
] = xstrdup(environ
[i
]);
822 void free_environ(char **env
)
825 for (i
= 0; env
[i
]; i
++)
830 static int lookup_env(char **env
, const char *name
, size_t nmln
)
834 for (i
= 0; env
[i
]; i
++) {
835 if (0 == strncmp(env
[i
], name
, nmln
)
836 && '=' == env
[i
][nmln
])
844 * If name contains '=', then sets the variable, otherwise it unsets it
846 static char **env_setenv(char **env
, const char *name
)
848 char *eq
= strchrnul(name
, '=');
849 int i
= lookup_env(env
, name
, eq
-name
);
853 for (i
= 0; env
[i
]; i
++)
855 env
= xrealloc(env
, (i
+2)*sizeof(*env
));
856 env
[i
] = xstrdup(name
);
863 env
[i
] = xstrdup(name
);
872 * Copies global environ and adjusts variables as specified by vars.
874 char **make_augmented_environ(const char *const *vars
)
876 char **env
= copy_environ();
879 env
= env_setenv(env
, *vars
++);
884 * Note, this isn't a complete replacement for getaddrinfo. It assumes
885 * that service contains a numerical port, or that it it is null. It
886 * does a simple search using gethostbyname, and returns one IPv4 host
889 static int WSAAPI
getaddrinfo_stub(const char *node
, const char *service
,
890 const struct addrinfo
*hints
,
891 struct addrinfo
**res
)
893 struct hostent
*h
= gethostbyname(node
);
895 struct sockaddr_in
*sin
;
898 return WSAGetLastError();
900 ai
= xmalloc(sizeof(struct addrinfo
));
903 ai
->ai_family
= AF_INET
;
904 ai
->ai_socktype
= hints
->ai_socktype
;
905 switch (hints
->ai_socktype
) {
907 ai
->ai_protocol
= IPPROTO_TCP
;
910 ai
->ai_protocol
= IPPROTO_UDP
;
916 ai
->ai_addrlen
= sizeof(struct sockaddr_in
);
917 ai
->ai_canonname
= strdup(h
->h_name
);
919 sin
= xmalloc(ai
->ai_addrlen
);
920 memset(sin
, 0, ai
->ai_addrlen
);
921 sin
->sin_family
= AF_INET
;
923 sin
->sin_port
= htons(atoi(service
));
924 sin
->sin_addr
= *(struct in_addr
*)h
->h_addr
;
925 ai
->ai_addr
= (struct sockaddr
*)sin
;
930 static void WSAAPI
freeaddrinfo_stub(struct addrinfo
*res
)
932 free(res
->ai_canonname
);
937 static int WSAAPI
getnameinfo_stub(const struct sockaddr
*sa
, socklen_t salen
,
938 char *host
, DWORD hostlen
,
939 char *serv
, DWORD servlen
, int flags
)
941 const struct sockaddr_in
*sin
= (const struct sockaddr_in
*)sa
;
942 if (sa
->sa_family
!= AF_INET
)
947 if (host
&& hostlen
> 0) {
948 struct hostent
*ent
= NULL
;
949 if (!(flags
& NI_NUMERICHOST
))
950 ent
= gethostbyaddr((const char *)&sin
->sin_addr
,
951 sizeof(sin
->sin_addr
), AF_INET
);
954 snprintf(host
, hostlen
, "%s", ent
->h_name
);
955 else if (flags
& NI_NAMEREQD
)
958 snprintf(host
, hostlen
, "%s", inet_ntoa(sin
->sin_addr
));
961 if (serv
&& servlen
> 0) {
962 struct servent
*ent
= NULL
;
963 if (!(flags
& NI_NUMERICSERV
))
964 ent
= getservbyport(sin
->sin_port
,
965 flags
& NI_DGRAM
? "udp" : "tcp");
968 snprintf(serv
, servlen
, "%s", ent
->s_name
);
970 snprintf(serv
, servlen
, "%d", ntohs(sin
->sin_port
));
976 static HMODULE ipv6_dll
= NULL
;
977 static void (WSAAPI
*ipv6_freeaddrinfo
)(struct addrinfo
*res
);
978 static int (WSAAPI
*ipv6_getaddrinfo
)(const char *node
, const char *service
,
979 const struct addrinfo
*hints
,
980 struct addrinfo
**res
);
981 static int (WSAAPI
*ipv6_getnameinfo
)(const struct sockaddr
*sa
, socklen_t salen
,
982 char *host
, DWORD hostlen
,
983 char *serv
, DWORD servlen
, int flags
);
985 * gai_strerror is an inline function in the ws2tcpip.h header, so we
986 * don't need to try to load that one dynamically.
989 static void socket_cleanup(void)
993 FreeLibrary(ipv6_dll
);
995 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
996 ipv6_getaddrinfo
= getaddrinfo_stub
;
997 ipv6_getnameinfo
= getnameinfo_stub
;
1000 static void ensure_socket_initialization(void)
1003 static int initialized
= 0;
1004 const char *libraries
[] = { "ws2_32.dll", "wship6.dll", NULL
};
1010 if (WSAStartup(MAKEWORD(2,2), &wsa
))
1011 die("unable to initialize winsock subsystem, error %d",
1014 for (name
= libraries
; *name
; name
++) {
1015 ipv6_dll
= LoadLibrary(*name
);
1019 ipv6_freeaddrinfo
= (void (WSAAPI
*)(struct addrinfo
*))
1020 GetProcAddress(ipv6_dll
, "freeaddrinfo");
1021 ipv6_getaddrinfo
= (int (WSAAPI
*)(const char *, const char *,
1022 const struct addrinfo
*,
1023 struct addrinfo
**))
1024 GetProcAddress(ipv6_dll
, "getaddrinfo");
1025 ipv6_getnameinfo
= (int (WSAAPI
*)(const struct sockaddr
*,
1026 socklen_t
, char *, DWORD
,
1027 char *, DWORD
, int))
1028 GetProcAddress(ipv6_dll
, "getnameinfo");
1029 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1030 FreeLibrary(ipv6_dll
);
1035 if (!ipv6_freeaddrinfo
|| !ipv6_getaddrinfo
|| !ipv6_getnameinfo
) {
1036 ipv6_freeaddrinfo
= freeaddrinfo_stub
;
1037 ipv6_getaddrinfo
= getaddrinfo_stub
;
1038 ipv6_getnameinfo
= getnameinfo_stub
;
1041 atexit(socket_cleanup
);
1045 #undef gethostbyname
1046 struct hostent
*mingw_gethostbyname(const char *host
)
1048 ensure_socket_initialization();
1049 return gethostbyname(host
);
1052 void mingw_freeaddrinfo(struct addrinfo
*res
)
1054 ipv6_freeaddrinfo(res
);
1057 int mingw_getaddrinfo(const char *node
, const char *service
,
1058 const struct addrinfo
*hints
, struct addrinfo
**res
)
1060 ensure_socket_initialization();
1061 return ipv6_getaddrinfo(node
, service
, hints
, res
);
1064 int mingw_getnameinfo(const struct sockaddr
*sa
, socklen_t salen
,
1065 char *host
, DWORD hostlen
, char *serv
, DWORD servlen
,
1068 ensure_socket_initialization();
1069 return ipv6_getnameinfo(sa
, salen
, host
, hostlen
, serv
, servlen
, flags
);
1072 int mingw_socket(int domain
, int type
, int protocol
)
1075 SOCKET s
= WSASocket(domain
, type
, protocol
, NULL
, 0, 0);
1076 if (s
== INVALID_SOCKET
) {
1078 * WSAGetLastError() values are regular BSD error codes
1079 * biased by WSABASEERR.
1080 * However, strerror() does not know about networking
1081 * specific errors, which are values beginning at 38 or so.
1082 * Therefore, we choose to leave the biased error code
1083 * in errno so that _if_ someone looks up the code somewhere,
1084 * then it is at least the number that are usually listed.
1086 errno
= WSAGetLastError();
1089 /* convert into a file descriptor */
1090 if ((sockfd
= _open_osfhandle(s
, O_RDWR
|O_BINARY
)) < 0) {
1092 return error("unable to make a socket file descriptor: %s",
1099 int mingw_connect(int sockfd
, struct sockaddr
*sa
, size_t sz
)
1101 SOCKET s
= (SOCKET
)_get_osfhandle(sockfd
);
1102 return connect(s
, sa
, sz
);
1106 int mingw_rename(const char *pold
, const char *pnew
)
1110 static const int delay
[] = { 0, 1, 10, 20, 40 };
1113 * Try native rename() first to get errno right.
1114 * It is based on MoveFile(), which cannot overwrite existing files.
1116 if (!rename(pold
, pnew
))
1118 if (errno
!= EEXIST
)
1121 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
1123 /* TODO: translate more errors */
1124 gle
= GetLastError();
1125 if (gle
== ERROR_ACCESS_DENIED
&&
1126 (attrs
= GetFileAttributes(pnew
)) != INVALID_FILE_ATTRIBUTES
) {
1127 if (attrs
& FILE_ATTRIBUTE_DIRECTORY
) {
1131 if ((attrs
& FILE_ATTRIBUTE_READONLY
) &&
1132 SetFileAttributes(pnew
, attrs
& ~FILE_ATTRIBUTE_READONLY
)) {
1133 if (MoveFileEx(pold
, pnew
, MOVEFILE_REPLACE_EXISTING
))
1135 gle
= GetLastError();
1136 /* revert file attributes on failure */
1137 SetFileAttributes(pnew
, attrs
);
1140 if (tries
< ARRAY_SIZE(delay
) && gle
== ERROR_ACCESS_DENIED
) {
1142 * We assume that some other process had the source or
1143 * destination file open at the wrong moment and retry.
1144 * In order to give the other process a higher chance to
1145 * complete its operation, we give up our time slice now.
1146 * If we have to retry again, we do sleep a bit.
1148 Sleep(delay
[tries
]);
1157 * Note that this doesn't return the actual pagesize, but
1158 * the allocation granularity. If future Windows specific git code
1159 * needs the real getpagesize function, we need to find another solution.
1161 int mingw_getpagesize(void)
1165 return si
.dwAllocationGranularity
;
1168 struct passwd
*getpwuid(int uid
)
1170 static char user_name
[100];
1171 static struct passwd p
;
1173 DWORD len
= sizeof(user_name
);
1174 if (!GetUserName(user_name
, &len
))
1176 p
.pw_name
= user_name
;
1177 p
.pw_gecos
= "unknown";
1182 static HANDLE timer_event
;
1183 static HANDLE timer_thread
;
1184 static int timer_interval
;
1185 static int one_shot
;
1186 static sig_handler_t timer_fn
= SIG_DFL
;
1188 /* The timer works like this:
1189 * The thread, ticktack(), is a trivial routine that most of the time
1190 * only waits to receive the signal to terminate. The main thread tells
1191 * the thread to terminate by setting the timer_event to the signalled
1193 * But ticktack() interrupts the wait state after the timer's interval
1194 * length to call the signal handler.
1197 static unsigned __stdcall
ticktack(void *dummy
)
1199 while (WaitForSingleObject(timer_event
, timer_interval
) == WAIT_TIMEOUT
) {
1200 if (timer_fn
== SIG_DFL
)
1202 if (timer_fn
!= SIG_IGN
)
1210 static int start_timer_thread(void)
1212 timer_event
= CreateEvent(NULL
, FALSE
, FALSE
, NULL
);
1214 timer_thread
= (HANDLE
) _beginthreadex(NULL
, 0, ticktack
, NULL
, 0, NULL
);
1216 return errno
= ENOMEM
,
1217 error("cannot start timer thread");
1219 return errno
= ENOMEM
,
1220 error("cannot allocate resources for timer");
1224 static void stop_timer_thread(void)
1227 SetEvent(timer_event
); /* tell thread to terminate */
1229 int rc
= WaitForSingleObject(timer_thread
, 1000);
1230 if (rc
== WAIT_TIMEOUT
)
1231 error("timer thread did not terminate timely");
1232 else if (rc
!= WAIT_OBJECT_0
)
1233 error("waiting for timer thread failed: %lu",
1235 CloseHandle(timer_thread
);
1238 CloseHandle(timer_event
);
1240 timer_thread
= NULL
;
1243 static inline int is_timeval_eq(const struct timeval
*i1
, const struct timeval
*i2
)
1245 return i1
->tv_sec
== i2
->tv_sec
&& i1
->tv_usec
== i2
->tv_usec
;
1248 int setitimer(int type
, struct itimerval
*in
, struct itimerval
*out
)
1250 static const struct timeval zero
;
1251 static int atexit_done
;
1254 return errno
= EINVAL
,
1255 error("setitimer param 3 != NULL not implemented");
1256 if (!is_timeval_eq(&in
->it_interval
, &zero
) &&
1257 !is_timeval_eq(&in
->it_interval
, &in
->it_value
))
1258 return errno
= EINVAL
,
1259 error("setitimer: it_interval must be zero or eq it_value");
1262 stop_timer_thread();
1264 if (is_timeval_eq(&in
->it_value
, &zero
) &&
1265 is_timeval_eq(&in
->it_interval
, &zero
))
1268 timer_interval
= in
->it_value
.tv_sec
* 1000 + in
->it_value
.tv_usec
/ 1000;
1269 one_shot
= is_timeval_eq(&in
->it_interval
, &zero
);
1271 atexit(stop_timer_thread
);
1274 return start_timer_thread();
1277 int sigaction(int sig
, struct sigaction
*in
, struct sigaction
*out
)
1280 return errno
= EINVAL
,
1281 error("sigaction only implemented for SIGALRM");
1283 return errno
= EINVAL
,
1284 error("sigaction: param 3 != NULL not implemented");
1286 timer_fn
= in
->sa_handler
;
1291 sig_handler_t
mingw_signal(int sig
, sig_handler_t handler
)
1293 sig_handler_t old
= timer_fn
;
1295 return signal(sig
, handler
);
1300 static const char *make_backslash_path(const char *path
)
1302 static char buf
[PATH_MAX
+ 1];
1305 if (strlcpy(buf
, path
, PATH_MAX
) >= PATH_MAX
)
1306 die("Too long path: %.*s", 60, path
);
1308 for (c
= buf
; *c
; c
++) {
1315 void mingw_open_html(const char *unixpath
)
1317 const char *htmlpath
= make_backslash_path(unixpath
);
1318 typedef HINSTANCE (WINAPI
*T
)(HWND
, const char *,
1319 const char *, const char *, const char *, INT
);
1323 shell32
= LoadLibrary("shell32.dll");
1325 die("cannot load shell32.dll");
1326 ShellExecute
= (T
)GetProcAddress(shell32
, "ShellExecuteA");
1328 die("cannot run browser");
1330 printf("Launching default browser to display HTML ...\n");
1331 ShellExecute(NULL
, "open", htmlpath
, NULL
, "\\", 0);
1333 FreeLibrary(shell32
);
1336 int link(const char *oldpath
, const char *newpath
)
1338 typedef BOOL (WINAPI
*T
)(const char*, const char*, LPSECURITY_ATTRIBUTES
);
1339 static T create_hard_link
= NULL
;
1340 if (!create_hard_link
) {
1341 create_hard_link
= (T
) GetProcAddress(
1342 GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
1343 if (!create_hard_link
)
1344 create_hard_link
= (T
)-1;
1346 if (create_hard_link
== (T
)-1) {
1350 if (!create_hard_link(newpath
, oldpath
, NULL
)) {
1351 errno
= err_win_to_posix(GetLastError());
1357 char *getpass(const char *prompt
)
1359 struct strbuf buf
= STRBUF_INIT
;
1361 fputs(prompt
, stderr
);
1364 if (c
== '\r' || c
== '\n')
1366 strbuf_addch(&buf
, c
);
1368 fputs("\n", stderr
);
1369 return strbuf_detach(&buf
, NULL
);
1372 #ifndef NO_MINGW_REPLACE_READDIR
1373 /* MinGW readdir implementation to avoid extra lstats for Git */
1376 struct _finddata_t dd_dta
; /* disk transfer area for this dir */
1377 struct mingw_dirent dd_dir
; /* Our own implementation, including d_type */
1378 long dd_handle
; /* _findnext handle */
1379 int dd_stat
; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
1380 char dd_name
[1]; /* given path for dir with search pattern (struct is extended) */
1383 struct dirent
*mingw_readdir(DIR *dir
)
1385 WIN32_FIND_DATAA buf
;
1387 struct mingw_DIR
*mdir
= (struct mingw_DIR
*)dir
;
1389 if (!dir
->dd_handle
) {
1390 errno
= EBADF
; /* No set_errno for mingw */
1394 if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
&& dir
->dd_stat
== 0)
1397 handle
= FindFirstFileA(dir
->dd_name
, &buf
);
1398 lasterr
= GetLastError();
1399 dir
->dd_handle
= (long)handle
;
1400 if (handle
== INVALID_HANDLE_VALUE
&& (lasterr
!= ERROR_NO_MORE_FILES
)) {
1401 errno
= err_win_to_posix(lasterr
);
1404 } else if (dir
->dd_handle
== (long)INVALID_HANDLE_VALUE
) {
1406 } else if (!FindNextFileA((HANDLE
)dir
->dd_handle
, &buf
)) {
1407 DWORD lasterr
= GetLastError();
1408 FindClose((HANDLE
)dir
->dd_handle
);
1409 dir
->dd_handle
= (long)INVALID_HANDLE_VALUE
;
1410 /* POSIX says you shouldn't set errno when readdir can't
1411 find any more files; so, if another error we leave it set. */
1412 if (lasterr
!= ERROR_NO_MORE_FILES
)
1413 errno
= err_win_to_posix(lasterr
);
1417 /* We get here if `buf' contains valid data. */
1418 strcpy(dir
->dd_dir
.d_name
, buf
.cFileName
);
1421 /* Set file type, based on WIN32_FIND_DATA */
1422 mdir
->dd_dir
.d_type
= 0;
1423 if (buf
.dwFileAttributes
& FILE_ATTRIBUTE_DIRECTORY
)
1424 mdir
->dd_dir
.d_type
|= DT_DIR
;
1426 mdir
->dd_dir
.d_type
|= DT_REG
;
1428 return (struct dirent
*)&dir
->dd_dir
;
1430 #endif // !NO_MINGW_REPLACE_READDIR