push --signed: tighten what the receiving end can ask to sign
[git.git] / compat / mingw.h
blobdf0e3203abed06374a789be191ff130e3ba728b6
1 #include <winsock2.h>
2 #include <ws2tcpip.h>
4 /*
5 * things that are not available in header files
6 */
8 typedef int pid_t;
9 typedef int uid_t;
10 typedef int socklen_t;
11 #define hstrerror strerror
13 #define S_IFLNK 0120000 /* Symbolic link */
14 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
15 #define S_ISSOCK(x) 0
17 #define S_IRGRP 0
18 #define S_IWGRP 0
19 #define S_IXGRP 0
20 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
21 #define S_IROTH 0
22 #define S_IWOTH 0
23 #define S_IXOTH 0
24 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
26 #define S_ISUID 0004000
27 #define S_ISGID 0002000
28 #define S_ISVTX 0001000
30 #define WIFEXITED(x) 1
31 #define WIFSIGNALED(x) 0
32 #define WEXITSTATUS(x) ((x) & 0xff)
33 #define WTERMSIG(x) SIGTERM
35 #ifndef EWOULDBLOCK
36 #define EWOULDBLOCK EAGAIN
37 #endif
38 #ifndef ELOOP
39 #define ELOOP EMLINK
40 #endif
41 #define SHUT_WR SD_SEND
43 #define SIGHUP 1
44 #define SIGQUIT 3
45 #define SIGKILL 9
46 #define SIGPIPE 13
47 #define SIGALRM 14
48 #define SIGCHLD 17
50 #define F_GETFD 1
51 #define F_SETFD 2
52 #define FD_CLOEXEC 0x1
54 #ifndef EAFNOSUPPORT
55 #define EAFNOSUPPORT WSAEAFNOSUPPORT
56 #endif
57 #ifndef ECONNABORTED
58 #define ECONNABORTED WSAECONNABORTED
59 #endif
61 struct passwd {
62 char *pw_name;
63 char *pw_gecos;
64 char *pw_dir;
67 typedef void (__cdecl *sig_handler_t)(int);
68 struct sigaction {
69 sig_handler_t sa_handler;
70 unsigned sa_flags;
72 #define sigemptyset(x) (void)0
73 #define SA_RESTART 0
75 struct itimerval {
76 struct timeval it_value, it_interval;
78 #define ITIMER_REAL 0
81 * sanitize preprocessor namespace polluted by Windows headers defining
82 * macros which collide with git local versions
84 #undef HELP_COMMAND /* from winuser.h */
87 * trivial stubs
90 static inline int readlink(const char *path, char *buf, size_t bufsiz)
91 { errno = ENOSYS; return -1; }
92 static inline int symlink(const char *oldpath, const char *newpath)
93 { errno = ENOSYS; return -1; }
94 static inline int fchmod(int fildes, mode_t mode)
95 { errno = ENOSYS; return -1; }
96 static inline pid_t fork(void)
97 { errno = ENOSYS; return -1; }
98 static inline unsigned int alarm(unsigned int seconds)
99 { return 0; }
100 static inline int fsync(int fd)
101 { return _commit(fd); }
102 static inline pid_t getppid(void)
103 { return 1; }
104 static inline void sync(void)
106 static inline uid_t getuid(void)
107 { return 1; }
108 static inline struct passwd *getpwnam(const char *name)
109 { return NULL; }
110 static inline int fcntl(int fd, int cmd, ...)
112 if (cmd == F_GETFD || cmd == F_SETFD)
113 return 0;
114 errno = EINVAL;
115 return -1;
117 /* bash cannot reliably detect negative return codes as failure */
118 #define exit(code) exit((code) & 0xff)
121 * simple adaptors
124 int mingw_mkdir(const char *path, int mode);
125 #define mkdir mingw_mkdir
127 #define WNOHANG 1
128 pid_t waitpid(pid_t pid, int *status, int options);
130 #define kill mingw_kill
131 int mingw_kill(pid_t pid, int sig);
133 #ifndef NO_OPENSSL
134 #include <openssl/ssl.h>
135 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
137 return SSL_set_fd(ssl, _get_osfhandle(fd));
139 #define SSL_set_fd mingw_SSL_set_fd
141 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
143 return SSL_set_rfd(ssl, _get_osfhandle(fd));
145 #define SSL_set_rfd mingw_SSL_set_rfd
147 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
149 return SSL_set_wfd(ssl, _get_osfhandle(fd));
151 #define SSL_set_wfd mingw_SSL_set_wfd
152 #endif
155 * implementations of missing functions
158 int pipe(int filedes[2]);
159 unsigned int sleep (unsigned int seconds);
160 int mkstemp(char *template);
161 int gettimeofday(struct timeval *tv, void *tz);
162 struct tm *gmtime_r(const time_t *timep, struct tm *result);
163 struct tm *localtime_r(const time_t *timep, struct tm *result);
164 int getpagesize(void); /* defined in MinGW's libgcc.a */
165 struct passwd *getpwuid(uid_t uid);
166 int setitimer(int type, struct itimerval *in, struct itimerval *out);
167 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
168 int link(const char *oldpath, const char *newpath);
171 * replacements of existing functions
174 int mingw_unlink(const char *pathname);
175 #define unlink mingw_unlink
177 int mingw_rmdir(const char *path);
178 #define rmdir mingw_rmdir
180 int mingw_open (const char *filename, int oflags, ...);
181 #define open mingw_open
183 int mingw_fgetc(FILE *stream);
184 #define fgetc mingw_fgetc
186 FILE *mingw_fopen (const char *filename, const char *otype);
187 #define fopen mingw_fopen
189 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
190 #define freopen mingw_freopen
192 int mingw_fflush(FILE *stream);
193 #define fflush mingw_fflush
195 int mingw_access(const char *filename, int mode);
196 #undef access
197 #define access mingw_access
199 int mingw_chdir(const char *dirname);
200 #define chdir mingw_chdir
202 int mingw_chmod(const char *filename, int mode);
203 #define chmod mingw_chmod
205 char *mingw_mktemp(char *template);
206 #define mktemp mingw_mktemp
208 char *mingw_getcwd(char *pointer, int len);
209 #define getcwd mingw_getcwd
211 char *mingw_getenv(const char *name);
212 #define getenv mingw_getenv
213 int mingw_putenv(const char *namevalue);
214 #define putenv mingw_putenv
215 #define unsetenv mingw_putenv
217 int mingw_gethostname(char *host, int namelen);
218 #define gethostname mingw_gethostname
220 struct hostent *mingw_gethostbyname(const char *host);
221 #define gethostbyname mingw_gethostbyname
223 void mingw_freeaddrinfo(struct addrinfo *res);
224 #define freeaddrinfo mingw_freeaddrinfo
226 int mingw_getaddrinfo(const char *node, const char *service,
227 const struct addrinfo *hints, struct addrinfo **res);
228 #define getaddrinfo mingw_getaddrinfo
230 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
231 char *host, DWORD hostlen, char *serv, DWORD servlen,
232 int flags);
233 #define getnameinfo mingw_getnameinfo
235 int mingw_socket(int domain, int type, int protocol);
236 #define socket mingw_socket
238 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
239 #define connect mingw_connect
241 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
242 #define bind mingw_bind
244 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
245 #define setsockopt mingw_setsockopt
247 int mingw_shutdown(int sockfd, int how);
248 #define shutdown mingw_shutdown
250 int mingw_listen(int sockfd, int backlog);
251 #define listen mingw_listen
253 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
254 #define accept mingw_accept
256 int mingw_rename(const char*, const char*);
257 #define rename mingw_rename
259 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
260 int mingw_getpagesize(void);
261 #define getpagesize mingw_getpagesize
262 #endif
264 struct rlimit {
265 unsigned int rlim_cur;
267 #define RLIMIT_NOFILE 0
269 static inline int getrlimit(int resource, struct rlimit *rlp)
271 if (resource != RLIMIT_NOFILE) {
272 errno = EINVAL;
273 return -1;
276 rlp->rlim_cur = 2048;
277 return 0;
281 * Use mingw specific stat()/lstat()/fstat() implementations on Windows.
283 #define off_t off64_t
284 #define lseek _lseeki64
286 /* use struct stat with 64 bit st_size */
287 #ifdef stat
288 #undef stat
289 #endif
290 #define stat _stati64
291 int mingw_lstat(const char *file_name, struct stat *buf);
292 int mingw_stat(const char *file_name, struct stat *buf);
293 int mingw_fstat(int fd, struct stat *buf);
294 #ifdef fstat
295 #undef fstat
296 #endif
297 #define fstat mingw_fstat
298 #ifdef lstat
299 #undef lstat
300 #endif
301 #define lstat mingw_lstat
303 #ifndef _stati64
304 # define _stati64(x,y) mingw_stat(x,y)
305 #elif defined (_USE_32BIT_TIME_T)
306 # define _stat32i64(x,y) mingw_stat(x,y)
307 #else
308 # define _stat64(x,y) mingw_stat(x,y)
309 #endif
311 int mingw_utime(const char *file_name, const struct utimbuf *times);
312 #define utime mingw_utime
314 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
315 const char *dir,
316 int fhin, int fhout, int fherr);
317 int mingw_execvp(const char *cmd, char *const *argv);
318 #define execvp mingw_execvp
319 int mingw_execv(const char *cmd, char *const *argv);
320 #define execv mingw_execv
322 static inline unsigned int git_ntohl(unsigned int x)
323 { return (unsigned int)ntohl(x); }
324 #define ntohl git_ntohl
326 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
327 #define signal mingw_signal
329 int mingw_raise(int sig);
330 #define raise mingw_raise
333 * ANSI emulation wrappers
336 void winansi_init(void);
337 HANDLE winansi_get_osfhandle(int fd);
340 * git specific compatibility
343 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
344 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
345 static inline char *mingw_find_last_dir_sep(const char *path)
347 char *ret = NULL;
348 for (; *path; ++path)
349 if (is_dir_sep(*path))
350 ret = (char *)path;
351 return ret;
353 #define find_last_dir_sep mingw_find_last_dir_sep
354 int mingw_offset_1st_component(const char *path);
355 #define offset_1st_component mingw_offset_1st_component
356 #define PATH_SEP ';'
357 #define PRIuMAX "I64u"
358 #define PRId64 "I64d"
360 void mingw_open_html(const char *path);
361 #define open_html mingw_open_html
363 void mingw_mark_as_git_dir(const char *dir);
364 #define mark_as_git_dir mingw_mark_as_git_dir
367 * Converts UTF-8 encoded string to UTF-16LE.
369 * To support repositories with legacy-encoded file names, invalid UTF-8 bytes
370 * 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 -
371 * \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable
372 * Unicode) are converted to hex-code.
374 * Lead-bytes not followed by an appropriate number of trail-bytes, over-long
375 * encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8.
377 * Maximum space requirement for the target buffer is two wide chars per UTF-8
378 * char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]).
380 * The maximum space is needed only if the entire input string consists of
381 * invalid UTF-8 bytes in range 0x80-0x9f, as per the following table:
383 * | | UTF-8 | UTF-16 |
384 * Code point | UTF-8 sequence | bytes | words | ratio
385 * --------------+-------------------+-------+--------+-------
386 * 000000-00007f | 0-7f | 1 | 1 | 1
387 * 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5
388 * 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33
389 * 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5
390 * invalid | 80-9f | 1 | 2 (b) | 2
391 * invalid | a0-ff | 1 | 1 | 1
393 * (a) encoded as UTF-16 surrogate pair
394 * (b) encoded as two hex digits
396 * Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte
397 * or even indefinite-byte sequences, the largest valid code point \u10ffff
398 * encodes as only 4 UTF-8 bytes.
400 * Parameters:
401 * wcs: wide char target buffer
402 * utf: string to convert
403 * wcslen: size of target buffer (in wchar_t's)
404 * utflen: size of string to convert, or -1 if 0-terminated
406 * Returns:
407 * length of converted string (_wcslen(wcs)), or -1 on failure
409 * Errors:
410 * EINVAL: one of the input parameters is invalid (e.g. NULL)
411 * ERANGE: the output buffer is too small
413 int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen);
416 * Simplified variant of xutftowcsn, assumes input string is \0-terminated.
418 static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen)
420 return xutftowcsn(wcs, utf, wcslen, -1);
424 * Simplified file system specific variant of xutftowcsn, assumes output
425 * buffer size is MAX_PATH wide chars and input string is \0-terminated,
426 * fails with ENAMETOOLONG if input string is too long.
428 static inline int xutftowcs_path(wchar_t *wcs, const char *utf)
430 int result = xutftowcsn(wcs, utf, MAX_PATH, -1);
431 if (result < 0 && errno == ERANGE)
432 errno = ENAMETOOLONG;
433 return result;
437 * Converts UTF-16LE encoded string to UTF-8.
439 * Maximum space requirement for the target buffer is three UTF-8 chars per
440 * wide char ((_wcslen(wcs) * 3) + 1).
442 * The maximum space is needed only if the entire input string consists of
443 * UTF-16 words in range 0x0800-0xd7ff or 0xe000-0xffff (i.e. \u0800-\uffff
444 * modulo surrogate pairs), as per the following table:
446 * | | UTF-16 | UTF-8 |
447 * Code point | UTF-16 sequence | words | bytes | ratio
448 * --------------+-----------------------+--------+-------+-------
449 * 000000-00007f | 0000-007f | 1 | 1 | 1
450 * 000080-0007ff | 0080-07ff | 1 | 2 | 2
451 * 000800-00ffff | 0800-d7ff / e000-ffff | 1 | 3 | 3
452 * 010000-10ffff | d800-dbff + dc00-dfff | 2 | 4 | 2
454 * Note that invalid code points > 10ffff cannot be represented in UTF-16.
456 * Parameters:
457 * utf: target buffer
458 * wcs: wide string to convert
459 * utflen: size of target buffer
461 * Returns:
462 * length of converted string, or -1 on failure
464 * Errors:
465 * EINVAL: one of the input parameters is invalid (e.g. NULL)
466 * ERANGE: the output buffer is too small
468 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen);
471 * A critical section used in the implementation of the spawn
472 * functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
473 * the replacement main() macro below.
475 extern CRITICAL_SECTION pinfo_cs;
478 * A replacement of main() that adds win32 specific initialization.
481 void mingw_startup();
482 #define main(c,v) dummy_decl_mingw_main(); \
483 static int mingw_main(c,v); \
484 int main(int argc, char **argv) \
486 mingw_startup(); \
487 return mingw_main(__argc, (void *)__argv); \
489 static int mingw_main(c,v)
492 * Used by Pthread API implementation for Windows
494 extern int err_win_to_posix(DWORD winerr);