compat/terminal: support echoing on windows
[git/dscho.git] / compat / mingw.h
blob00ef97563b126b2821cd32ab72ed1dd4b275f71c
1 #define _WIN32_WINNT 0x0501
2 #include <winsock2.h>
3 #include <ws2tcpip.h>
5 /*
6 * things that are not available in header files
7 */
9 typedef int pid_t;
10 typedef int uid_t;
11 typedef int socklen_t;
12 #define hstrerror strerror
14 #define S_IFLNK 0120000 /* Symbolic link */
15 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
16 #define S_ISSOCK(x) 0
18 #define S_IRGRP 0
19 #define S_IWGRP 0
20 #define S_IXGRP 0
21 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
22 #define S_IROTH 0
23 #define S_IWOTH 0
24 #define S_IXOTH 0
25 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
27 #define S_ISUID 0004000
28 #define S_ISGID 0002000
29 #define S_ISVTX 0001000
31 #define WIFEXITED(x) 1
32 #define WIFSIGNALED(x) 0
33 #define WEXITSTATUS(x) ((x) & 0xff)
34 #define WTERMSIG(x) SIGTERM
36 #define EWOULDBLOCK EAGAIN
37 #define SHUT_WR SD_SEND
39 #define SIGHUP 1
40 #define SIGQUIT 3
41 #define SIGKILL 9
42 #define SIGPIPE 13
43 #define SIGALRM 14
44 #define SIGCHLD 17
46 #define F_GETFD 1
47 #define F_SETFD 2
48 #define FD_CLOEXEC 0x1
50 #define EAFNOSUPPORT WSAEAFNOSUPPORT
51 #define ECONNABORTED WSAECONNABORTED
53 struct passwd {
54 char *pw_name;
55 char *pw_gecos;
56 char *pw_dir;
59 typedef void (__cdecl *sig_handler_t)(int);
60 struct sigaction {
61 sig_handler_t sa_handler;
62 unsigned sa_flags;
64 #define sigemptyset(x) (void)0
65 #define SA_RESTART 0
67 struct itimerval {
68 struct timeval it_value, it_interval;
70 #define ITIMER_REAL 0
73 * sanitize preprocessor namespace polluted by Windows headers defining
74 * macros which collide with git local versions
76 #undef HELP_COMMAND /* from winuser.h */
79 * trivial stubs
82 static inline int readlink(const char *path, char *buf, size_t bufsiz)
83 { errno = ENOSYS; return -1; }
84 static inline int symlink(const char *oldpath, const char *newpath)
85 { errno = ENOSYS; return -1; }
86 static inline int fchmod(int fildes, mode_t mode)
87 { errno = ENOSYS; return -1; }
88 static inline pid_t fork(void)
89 { errno = ENOSYS; return -1; }
90 static inline unsigned int alarm(unsigned int seconds)
91 { return 0; }
92 static inline int fsync(int fd)
93 { return _commit(fd); }
94 static inline pid_t getppid(void)
95 { return 1; }
96 static inline void sync(void)
98 static inline uid_t getuid(void)
99 { return 1; }
100 static inline struct passwd *getpwnam(const char *name)
101 { return NULL; }
102 static inline int fcntl(int fd, int cmd, ...)
104 if (cmd == F_GETFD || cmd == F_SETFD)
105 return 0;
106 errno = EINVAL;
107 return -1;
109 /* bash cannot reliably detect negative return codes as failure */
110 #define exit(code) exit((code) & 0xff)
113 * simple adaptors
116 int mingw_mkdir(const char *path, int mode);
117 #define mkdir mingw_mkdir
119 #define WNOHANG 1
120 pid_t waitpid(pid_t pid, int *status, int options);
122 #define kill mingw_kill
123 int mingw_kill(pid_t pid, int sig);
125 #ifndef NO_OPENSSL
126 #include <openssl/ssl.h>
127 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
129 return SSL_set_fd(ssl, _get_osfhandle(fd));
131 #define SSL_set_fd mingw_SSL_set_fd
133 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
135 return SSL_set_rfd(ssl, _get_osfhandle(fd));
137 #define SSL_set_rfd mingw_SSL_set_rfd
139 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
141 return SSL_set_wfd(ssl, _get_osfhandle(fd));
143 #define SSL_set_wfd mingw_SSL_set_wfd
144 #endif
147 * implementations of missing functions
150 int pipe(int filedes[2]);
151 unsigned int sleep (unsigned int seconds);
152 int mkstemp(char *template);
153 int gettimeofday(struct timeval *tv, void *tz);
154 struct tm *gmtime_r(const time_t *timep, struct tm *result);
155 struct tm *localtime_r(const time_t *timep, struct tm *result);
156 int getpagesize(void); /* defined in MinGW's libgcc.a */
157 struct passwd *getpwuid(uid_t uid);
158 int setitimer(int type, struct itimerval *in, struct itimerval *out);
159 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
160 int link(const char *oldpath, const char *newpath);
163 * replacements of existing functions
166 int mingw_unlink(const char *pathname);
167 #define unlink mingw_unlink
169 int mingw_rmdir(const char *path);
170 #define rmdir mingw_rmdir
172 int mingw_open (const char *filename, int oflags, ...);
173 #define open mingw_open
175 ssize_t mingw_write(int fd, const void *buf, size_t count);
176 #define write mingw_write
178 FILE *mingw_fopen (const char *filename, const char *otype);
179 #define fopen mingw_fopen
181 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
182 #define freopen mingw_freopen
184 int mingw_access(const char *filename, int mode);
185 #undef access
186 #define access mingw_access
188 int mingw_chdir(const char *dirname);
189 #define chdir mingw_chdir
191 int mingw_chmod(const char *filename, int mode);
192 #define chmod mingw_chmod
194 char *mingw_mktemp(char *template);
195 #define mktemp mingw_mktemp
197 char *mingw_getcwd(char *pointer, int len);
198 #define getcwd mingw_getcwd
200 char *mingw_getenv(const char *name);
201 #define getenv mingw_getenv
202 int mingw_putenv(const char *namevalue);
203 #define putenv mingw_putenv
204 #define unsetenv mingw_putenv
206 int mingw_gethostname(char *host, int namelen);
207 #define gethostname mingw_gethostname
209 struct hostent *mingw_gethostbyname(const char *host);
210 #define gethostbyname mingw_gethostbyname
212 void mingw_freeaddrinfo(struct addrinfo *res);
213 #define freeaddrinfo mingw_freeaddrinfo
215 int mingw_getaddrinfo(const char *node, const char *service,
216 const struct addrinfo *hints, struct addrinfo **res);
217 #define getaddrinfo mingw_getaddrinfo
219 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
220 char *host, DWORD hostlen, char *serv, DWORD servlen,
221 int flags);
222 #define getnameinfo mingw_getnameinfo
224 int mingw_socket(int domain, int type, int protocol);
225 #define socket mingw_socket
227 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
228 #define connect mingw_connect
230 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
231 #define bind mingw_bind
233 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
234 #define setsockopt mingw_setsockopt
236 int mingw_shutdown(int sockfd, int how);
237 #define shutdown mingw_shutdown
239 int mingw_listen(int sockfd, int backlog);
240 #define listen mingw_listen
242 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
243 #define accept mingw_accept
245 int mingw_rename(const char*, const char*);
246 #define rename mingw_rename
248 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
249 int mingw_getpagesize(void);
250 #define getpagesize mingw_getpagesize
251 #endif
253 struct rlimit {
254 unsigned int rlim_cur;
256 #define RLIMIT_NOFILE 0
258 static inline int getrlimit(int resource, struct rlimit *rlp)
260 if (resource != RLIMIT_NOFILE) {
261 errno = EINVAL;
262 return -1;
265 rlp->rlim_cur = 2048;
266 return 0;
269 /* Use mingw_lstat() instead of lstat()/stat() and
270 * mingw_fstat() instead of fstat() on Windows.
272 #define off_t off64_t
273 #define lseek _lseeki64
274 #ifndef ALREADY_DECLARED_STAT_FUNCS
275 #define stat _stati64
276 int mingw_lstat(const char *file_name, struct stat *buf);
277 int mingw_stat(const char *file_name, struct stat *buf);
278 int mingw_fstat(int fd, struct stat *buf);
279 #define fstat mingw_fstat
280 #define lstat mingw_lstat
281 #define _stati64(x,y) mingw_stat(x,y)
282 #endif
284 int mingw_utime(const char *file_name, const struct utimbuf *times);
285 #define utime mingw_utime
287 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
288 const char *dir,
289 int fhin, int fhout, int fherr);
290 int mingw_execvp(const char *cmd, char *const *argv);
291 #define execvp mingw_execvp
292 int mingw_execv(const char *cmd, char *const *argv);
293 #define execv mingw_execv
295 static inline unsigned int git_ntohl(unsigned int x)
296 { return (unsigned int)ntohl(x); }
297 #define ntohl git_ntohl
299 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
300 #define signal mingw_signal
303 * ANSI emulation wrappers
306 void winansi_init(void);
307 HANDLE winansi_get_osfhandle(int fd);
310 * git specific compatibility
313 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
314 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
315 static inline char *mingw_find_last_dir_sep(const char *path)
317 char *ret = NULL;
318 for (; *path; ++path)
319 if (is_dir_sep(*path))
320 ret = (char *)path;
321 return ret;
323 #define find_last_dir_sep mingw_find_last_dir_sep
324 int mingw_offset_1st_component(const char *path);
325 #define offset_1st_component mingw_offset_1st_component
326 #define PATH_SEP ';'
327 #define PRIuMAX "I64u"
329 void mingw_open_html(const char *path);
330 #define open_html mingw_open_html
332 void mingw_mark_as_git_dir(const char *dir);
333 #define mark_as_git_dir mingw_mark_as_git_dir
337 * Converts UTF-8 encoded string to UTF-16LE.
339 * To support repositories with legacy-encoded file names, invalid UTF-8 bytes
340 * 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 -
341 * \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable
342 * Unicode) are converted to hex-code.
344 * Lead-bytes not followed by an appropriate number of trail-bytes, over-long
345 * encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8.
347 * Maximum space requirement for the target buffer is two wide chars per UTF-8
348 * char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]).
350 * The maximum space is needed only if the entire input string consists of
351 * invalid UTF-8 bytes in range 0x80-0x9f, as per the following table:
353 * | | UTF-8 | UTF-16 |
354 * Code point | UTF-8 sequence | bytes | words | ratio
355 * --------------+-------------------+-------+--------+-------
356 * 000000-00007f | 0-7f | 1 | 1 | 1
357 * 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5
358 * 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33
359 * 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5
360 * invalid | 80-9f | 1 | 2 (b) | 2
361 * invalid | a0-ff | 1 | 1 | 1
363 * (a) encoded as UTF-16 surrogate pair
364 * (b) encoded as two hex digits
366 * Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte
367 * or even indefinite-byte sequences, the largest valid code point \u10ffff
368 * encodes as only 4 UTF-8 bytes.
370 * Parameters:
371 * wcs: wide char target buffer
372 * utf: string to convert
373 * wcslen: size of target buffer (in wchar_t's)
374 * utflen: size of string to convert, or -1 if 0-terminated
376 * Returns:
377 * length of converted string (_wcslen(wcs)), or -1 on failure
379 * Errors:
380 * EINVAL: one of the input parameters is invalid (e.g. NULL)
381 * ERANGE: the output buffer is too small
383 int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen);
386 * Simplified variant of xutftowcsn, assumes input string is \0-terminated.
388 static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen)
390 return xutftowcsn(wcs, utf, wcslen, -1);
394 * Simplified file system specific variant of xutftowcsn, assumes output
395 * buffer size is MAX_PATH wide chars and input string is \0-terminated,
396 * fails with ENAMETOOLONG if input string is too long.
398 static inline int xutftowcs_path(wchar_t *wcs, const char *utf)
400 int result = xutftowcsn(wcs, utf, MAX_PATH, -1);
401 if (result < 0 && errno == ERANGE)
402 errno = ENAMETOOLONG;
403 return result;
407 * Converts UTF-16LE encoded string to UTF-8.
409 * Maximum space requirement for the target buffer is three UTF-8 chars per
410 * wide char ((_wcslen(wcs) * 3) + 1).
412 * The maximum space is needed only if the entire input string consists of
413 * UTF-16 words in range 0x0800-0xd7ff or 0xe000-0xffff (i.e. \u0800-\uffff
414 * modulo surrogate pairs), as per the following table:
416 * | | UTF-16 | UTF-8 |
417 * Code point | UTF-16 sequence | words | bytes | ratio
418 * --------------+-----------------------+--------+-------+-------
419 * 000000-00007f | 0000-007f | 1 | 1 | 1
420 * 000080-0007ff | 0080-07ff | 1 | 2 | 2
421 * 000800-00ffff | 0800-d7ff / e000-ffff | 1 | 3 | 3
422 * 010000-10ffff | d800-dbff + dc00-dfff | 2 | 4 | 2
424 * Note that invalid code points > 10ffff cannot be represented in UTF-16.
426 * Parameters:
427 * utf: target buffer
428 * wcs: wide string to convert
429 * utflen: size of target buffer
431 * Returns:
432 * length of converted string, or -1 on failure
434 * Errors:
435 * EINVAL: one of the input parameters is invalid (e.g. NULL)
436 * ERANGE: the output buffer is too small
438 int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen);
441 * A replacement of main() that adds win32 specific initialization.
444 void mingw_startup();
445 #define main(c,v) dummy_decl_mingw_main(); \
446 static int mingw_main(); \
447 int main(int argc, const char **argv) \
449 mingw_startup(); \
450 return mingw_main(__argc, __argv); \
452 static int mingw_main(c,v)
455 * Used by Pthread API implementation for Windows
457 extern int err_win_to_posix(DWORD winerr);
459 extern const char *get_windows_home_directory();
460 #define get_home_directory() get_windows_home_directory()