mingw: abort on invalid strftime formats
[git/git.git] / compat / mingw.h
CommitLineData
3ecd153a
JS
1#ifdef __MINGW64_VERSION_MAJOR
2#include <stdint.h>
3#include <wchar.h>
4typedef _sigset_t sigset_t;
5#endif
f4626df5 6#include <winsock2.h>
fe3b2b7b 7#include <ws2tcpip.h>
f4626df5 8
3ecd153a
JS
9/* MinGW-w64 reports to have flockfile, but it does not actually have it. */
10#ifdef __MINGW64_VERSION_MAJOR
11#undef _POSIX_THREAD_SAFE_FUNCTIONS
12#endif
13
f4626df5
JS
14/*
15 * things that are not available in header files
16 */
17
e7cf4e94 18typedef int uid_t;
772991af 19typedef int socklen_t;
3ecd153a
JS
20#ifndef __MINGW64_VERSION_MAJOR
21typedef int pid_t;
f4626df5 22#define hstrerror strerror
3ecd153a 23#endif
f4626df5
JS
24
25#define S_IFLNK 0120000 /* Symbolic link */
26#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
27#define S_ISSOCK(x) 0
4091bfc9 28
59de49f8 29#ifndef S_IRWXG
f4626df5
JS
30#define S_IRGRP 0
31#define S_IWGRP 0
32#define S_IXGRP 0
4091bfc9 33#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
59de49f8
JS
34#endif
35#ifndef S_IRWXO
f4626df5 36#define S_IROTH 0
4091bfc9 37#define S_IWOTH 0
f4626df5 38#define S_IXOTH 0
4091bfc9 39#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
59de49f8 40#endif
90110d76
RJ
41
42#define S_ISUID 0004000
43#define S_ISGID 0002000
44#define S_ISVTX 0001000
f4626df5 45
303e7c48
JS
46#define WIFEXITED(x) 1
47#define WIFSIGNALED(x) 0
f4626df5 48#define WEXITSTATUS(x) ((x) & 0xff)
303e7c48 49#define WTERMSIG(x) SIGTERM
f4626df5 50
61542f77 51#ifndef EWOULDBLOCK
419f37db 52#define EWOULDBLOCK EAGAIN
61542f77 53#endif
e0a064a1
KB
54#ifndef ELOOP
55#define ELOOP EMLINK
56#endif
419f37db
IL
57#define SHUT_WR SD_SEND
58
d2825065
JS
59#define SIGHUP 1
60#define SIGQUIT 3
61#define SIGKILL 9
62#define SIGPIPE 13
63#define SIGALRM 14
64#define SIGCHLD 17
f4626df5
JS
65
66#define F_GETFD 1
67#define F_SETFD 2
68#define FD_CLOEXEC 0x1
69
05d1ed61
BW
70#if !defined O_CLOEXEC && defined O_NOINHERIT
71#define O_CLOEXEC O_NOINHERIT
72#endif
73
61542f77 74#ifndef EAFNOSUPPORT
772991af 75#define EAFNOSUPPORT WSAEAFNOSUPPORT
61542f77
KB
76#endif
77#ifndef ECONNABORTED
772991af 78#define ECONNABORTED WSAECONNABORTED
61542f77 79#endif
fab60274
JS
80#ifndef ENOTSOCK
81#define ENOTSOCK WSAENOTSOCK
82#endif
772991af 83
f4626df5
JS
84struct passwd {
85 char *pw_name;
86 char *pw_gecos;
87 char *pw_dir;
88};
89
f4626df5
JS
90typedef void (__cdecl *sig_handler_t)(int);
91struct sigaction {
92 sig_handler_t sa_handler;
93 unsigned sa_flags;
94};
f4626df5
JS
95#define SA_RESTART 0
96
97struct itimerval {
98 struct timeval it_value, it_interval;
99};
100#define ITIMER_REAL 0
101
7b6aff06
NTND
102struct utsname {
103 char sysname[16];
104 char nodename[1];
105 char release[16];
106 char version[16];
107 char machine[1];
108};
109
77df1f1e
ES
110/*
111 * sanitize preprocessor namespace polluted by Windows headers defining
112 * macros which collide with git local versions
113 */
114#undef HELP_COMMAND /* from winuser.h */
115
f4626df5
JS
116/*
117 * trivial stubs
118 */
119
120static inline int readlink(const char *path, char *buf, size_t bufsiz)
121{ errno = ENOSYS; return -1; }
122static inline int symlink(const char *oldpath, const char *newpath)
123{ errno = ENOSYS; return -1; }
f4626df5
JS
124static inline int fchmod(int fildes, mode_t mode)
125{ errno = ENOSYS; return -1; }
3ecd153a 126#ifndef __MINGW64_VERSION_MAJOR
f0c7fd49
JH
127static inline pid_t fork(void)
128{ errno = ENOSYS; return -1; }
3ecd153a 129#endif
f4626df5
JS
130static inline unsigned int alarm(unsigned int seconds)
131{ return 0; }
132static inline int fsync(int fd)
75f6929a 133{ return _commit(fd); }
f4626df5
JS
134static inline void sync(void)
135{}
e7cf4e94 136static inline uid_t getuid(void)
f4626df5
JS
137{ return 1; }
138static inline struct passwd *getpwnam(const char *name)
139{ return NULL; }
5f8763a8 140static inline int fcntl(int fd, int cmd, ...)
f4626df5
JS
141{
142 if (cmd == F_GETFD || cmd == F_SETFD)
143 return 0;
144 errno = EINVAL;
145 return -1;
146}
47e3de0e
JS
147/* bash cannot reliably detect negative return codes as failure */
148#define exit(code) exit((code) & 0xff)
4e6d207c
JS
149#define sigemptyset(x) (void)0
150static inline int sigaddset(sigset_t *set, int signum)
151{ return 0; }
f924b52a 152#define SIG_BLOCK 0
4e6d207c
JS
153#define SIG_UNBLOCK 0
154static inline int sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
155{ return 0; }
9a9a41db
JS
156static inline pid_t getppid(void)
157{ return 1; }
158static inline pid_t getpgid(pid_t pid)
159{ return pid == 0 ? getpid() : pid; }
160static inline pid_t tcgetpgrp(int fd)
161{ return getpid(); }
f4626df5
JS
162
163/*
164 * simple adaptors
165 */
166
85faec9d 167int mingw_mkdir(const char *path, int mode);
f4626df5
JS
168#define mkdir mingw_mkdir
169
ef7108ca 170#define WNOHANG 1
956d86d1 171pid_t waitpid(pid_t pid, int *status, int options);
f4626df5 172
82fc07b7
EFL
173#define kill mingw_kill
174int mingw_kill(pid_t pid, int sig);
175
514213bf
EFL
176#ifndef NO_OPENSSL
177#include <openssl/ssl.h>
178static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
179{
180 return SSL_set_fd(ssl, _get_osfhandle(fd));
181}
182#define SSL_set_fd mingw_SSL_set_fd
183
184static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
185{
186 return SSL_set_rfd(ssl, _get_osfhandle(fd));
187}
188#define SSL_set_rfd mingw_SSL_set_rfd
189
190static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
191{
192 return SSL_set_wfd(ssl, _get_osfhandle(fd));
193}
194#define SSL_set_wfd mingw_SSL_set_wfd
195#endif
196
f4626df5
JS
197/*
198 * implementations of missing functions
199 */
200
897bb8cb 201int pipe(int filedes[2]);
f4626df5
JS
202unsigned int sleep (unsigned int seconds);
203int mkstemp(char *template);
204int gettimeofday(struct timeval *tv, void *tz);
3ecd153a 205#ifndef __MINGW64_VERSION_MAJOR
f4626df5
JS
206struct tm *gmtime_r(const time_t *timep, struct tm *result);
207struct tm *localtime_r(const time_t *timep, struct tm *result);
3ecd153a 208#endif
f4626df5 209int getpagesize(void); /* defined in MinGW's libgcc.a */
e7cf4e94 210struct passwd *getpwuid(uid_t uid);
f4626df5
JS
211int setitimer(int type, struct itimerval *in, struct itimerval *out);
212int sigaction(int sig, struct sigaction *in, struct sigaction *out);
7be401e0 213int link(const char *oldpath, const char *newpath);
7b6aff06 214int uname(struct utsname *buf);
80ba074f 215
25fe217b
JS
216/*
217 * replacements of existing functions
218 */
219
337967fb
HV
220int mingw_unlink(const char *pathname);
221#define unlink mingw_unlink
222
4f288100
HV
223int mingw_rmdir(const char *path);
224#define rmdir mingw_rmdir
225
3e4a1ba0
JS
226int mingw_open (const char *filename, int oflags, ...);
227#define open mingw_open
228
176478a8
EFL
229int mingw_fgetc(FILE *stream);
230#define fgetc mingw_fgetc
231
3fdcdbdf
JS
232FILE *mingw_fopen (const char *filename, const char *otype);
233#define fopen mingw_fopen
234
235FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
236#define freopen mingw_freopen
237
84adb641
JS
238int mingw_fflush(FILE *stream);
239#define fflush mingw_fflush
240
2b86292e
JS
241ssize_t mingw_write(int fd, const void *buf, size_t len);
242#define write mingw_write
243
85faec9d
KB
244int mingw_access(const char *filename, int mode);
245#undef access
246#define access mingw_access
247
248int mingw_chdir(const char *dirname);
249#define chdir mingw_chdir
250
251int mingw_chmod(const char *filename, int mode);
252#define chmod mingw_chmod
253
254char *mingw_mktemp(char *template);
255#define mktemp mingw_mktemp
256
25fe217b
JS
257char *mingw_getcwd(char *pointer, int len);
258#define getcwd mingw_getcwd
259
6fd6aec4
JS
260char *mingw_getenv(const char *name);
261#define getenv mingw_getenv
b729f98f
KB
262int mingw_putenv(const char *namevalue);
263#define putenv mingw_putenv
e96942e8 264#define unsetenv mingw_putenv
6fd6aec4 265
13d24b01
PT
266int mingw_gethostname(char *host, int namelen);
267#define gethostname mingw_gethostname
268
746fb857
JS
269struct hostent *mingw_gethostbyname(const char *host);
270#define gethostbyname mingw_gethostbyname
271
fe3b2b7b
MS
272void mingw_freeaddrinfo(struct addrinfo *res);
273#define freeaddrinfo mingw_freeaddrinfo
274
275int mingw_getaddrinfo(const char *node, const char *service,
276 const struct addrinfo *hints, struct addrinfo **res);
277#define getaddrinfo mingw_getaddrinfo
278
279int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
280 char *host, DWORD hostlen, char *serv, DWORD servlen,
281 int flags);
282#define getnameinfo mingw_getnameinfo
283
746fb857
JS
284int mingw_socket(int domain, int type, int protocol);
285#define socket mingw_socket
286
287int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
288#define connect mingw_connect
289
772991af
MP
290int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
291#define bind mingw_bind
292
293int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
294#define setsockopt mingw_setsockopt
295
a7941795
JS
296int mingw_shutdown(int sockfd, int how);
297#define shutdown mingw_shutdown
298
772991af
MP
299int mingw_listen(int sockfd, int backlog);
300#define listen mingw_listen
301
302int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
303#define accept mingw_accept
304
ea9e98c3
JS
305int mingw_rename(const char*, const char*);
306#define rename mingw_rename
307
b1b95204 308#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
b130a72b
JL
309int mingw_getpagesize(void);
310#define getpagesize mingw_getpagesize
311#endif
312
38abd9b8
EFL
313struct rlimit {
314 unsigned int rlim_cur;
315};
316#define RLIMIT_NOFILE 0
317
318static inline int getrlimit(int resource, struct rlimit *rlp)
319{
320 if (resource != RLIMIT_NOFILE) {
321 errno = EINVAL;
322 return -1;
323 }
324
325 rlp->rlim_cur = 2048;
326 return 0;
327}
328
a2374f58
KB
329/*
330 * Use mingw specific stat()/lstat()/fstat() implementations on Windows.
5411bdc4 331 */
3ecd153a 332#ifndef __MINGW64_VERSION_MAJOR
1d4e4cd4 333#define off_t off64_t
1d4e4cd4 334#define lseek _lseeki64
3ecd153a 335#endif
a2374f58
KB
336
337/* use struct stat with 64 bit st_size */
fa93bb20
SS
338#ifdef stat
339#undef stat
340#endif
b6f714f8 341#define stat _stati64
180964f0 342int mingw_lstat(const char *file_name, struct stat *buf);
9b9784ca 343int mingw_stat(const char *file_name, struct stat *buf);
180964f0 344int mingw_fstat(int fd, struct stat *buf);
fa93bb20
SS
345#ifdef fstat
346#undef fstat
347#endif
5411bdc4 348#define fstat mingw_fstat
fa93bb20
SS
349#ifdef lstat
350#undef lstat
351#endif
5411bdc4 352#define lstat mingw_lstat
a2374f58
KB
353
354#ifndef _stati64
355# define _stati64(x,y) mingw_stat(x,y)
356#elif defined (_USE_32BIT_TIME_T)
357# define _stat32i64(x,y) mingw_stat(x,y)
358#else
359# define _stat64(x,y) mingw_stat(x,y)
b6f714f8 360#endif
5411bdc4 361
7c0ffa1c
JS
362int mingw_utime(const char *file_name, const struct utimbuf *times);
363#define utime mingw_utime
9ee0540a
JS
364size_t mingw_strftime(char *s, size_t max,
365 const char *format, const struct tm *tm);
366#define strftime mingw_strftime
7c0ffa1c 367
75301f90 368pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
f9a2743c 369 const char *dir,
75301f90 370 int fhin, int fhout, int fherr);
1696d723 371int mingw_execvp(const char *cmd, char *const *argv);
f1a4dfb8 372#define execvp mingw_execvp
1696d723 373int mingw_execv(const char *cmd, char *const *argv);
5debf9a5 374#define execv mingw_execv
f1a4dfb8 375
cd800eec
SP
376static inline unsigned int git_ntohl(unsigned int x)
377{ return (unsigned int)ntohl(x); }
378#define ntohl git_ntohl
379
6072fc31
JS
380sig_handler_t mingw_signal(int sig, sig_handler_t handler);
381#define signal mingw_signal
382
176478a8
EFL
383int mingw_raise(int sig);
384#define raise mingw_raise
385
c09df8a7
PH
386/*
387 * ANSI emulation wrappers
388 */
389
cbb3f3c9
JS
390int winansi_isatty(int fd);
391#define isatty winansi_isatty
392
eac14f89 393void winansi_init(void);
eac14f89 394HANDLE winansi_get_osfhandle(int fd);
c09df8a7 395
80ba074f
JS
396/*
397 * git specific compatibility
398 */
399
2f36eed9
JS
400#define has_dos_drive_prefix(path) \
401 (isalpha(*(path)) && (path)[1] == ':' ? 2 : 0)
e7d5ce81 402int mingw_skip_dos_drive_prefix(char **path);
2f36eed9 403#define skip_dos_drive_prefix mingw_skip_dos_drive_prefix
e20b5b59
JS
404static inline int mingw_is_dir_sep(int c)
405{
406 return c == '/' || c == '\\';
407}
408#define is_dir_sep mingw_is_dir_sep
d1c69255
TN
409static inline char *mingw_find_last_dir_sep(const char *path)
410{
411 char *ret = NULL;
412 for (; *path; ++path)
413 if (is_dir_sep(*path))
414 ret = (char *)path;
415 return ret;
416}
5ca6b7bb
JS
417static inline void convert_slashes(char *path)
418{
419 for (; *path; path++)
420 if (*path == '\\')
421 *path = '/';
422}
d1c69255 423#define find_last_dir_sep mingw_find_last_dir_sep
c2369bdf
CZ
424int mingw_offset_1st_component(const char *path);
425#define offset_1st_component mingw_offset_1st_component
80ba074f 426#define PATH_SEP ';'
0ef60afd 427#if !defined(__MINGW64_VERSION_MAJOR) && (!defined(_MSC_VER) || _MSC_VER < 1800)
82f8d969 428#define PRIuMAX "I64u"
1562f3be 429#define PRId64 "I64d"
3ecd153a
JS
430#else
431#include <inttypes.h>
432#endif
ba26f296 433
1c950a59
KB
434/**
435 * Converts UTF-8 encoded string to UTF-16LE.
436 *
437 * To support repositories with legacy-encoded file names, invalid UTF-8 bytes
438 * 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 -
439 * \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable
440 * Unicode) are converted to hex-code.
441 *
442 * Lead-bytes not followed by an appropriate number of trail-bytes, over-long
443 * encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8.
444 *
445 * Maximum space requirement for the target buffer is two wide chars per UTF-8
446 * char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]).
447 *
448 * The maximum space is needed only if the entire input string consists of
449 * invalid UTF-8 bytes in range 0x80-0x9f, as per the following table:
450 *
451 * | | UTF-8 | UTF-16 |
452 * Code point | UTF-8 sequence | bytes | words | ratio
453 * --------------+-------------------+-------+--------+-------
454 * 000000-00007f | 0-7f | 1 | 1 | 1
455 * 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5
456 * 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33
457 * 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5
458 * invalid | 80-9f | 1 | 2 (b) | 2
459 * invalid | a0-ff | 1 | 1 | 1
460 *
461 * (a) encoded as UTF-16 surrogate pair
462 * (b) encoded as two hex digits
463 *
464 * Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte
465 * or even indefinite-byte sequences, the largest valid code point \u10ffff
466 * encodes as only 4 UTF-8 bytes.
467 *
468 * Parameters:
469 * wcs: wide char target buffer
470 * utf: string to convert
471 * wcslen: size of target buffer (in wchar_t's)
472 * utflen: size of string to convert, or -1 if 0-terminated
473 *
474 * Returns:
475 * length of converted string (_wcslen(wcs)), or -1 on failure
476 *
477 * Errors:
478 * EINVAL: one of the input parameters is invalid (e.g. NULL)
479 * ERANGE: the output buffer is too small
480 */
481int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen);
482
483/**
484 * Simplified variant of xutftowcsn, assumes input string is \0-terminated.
485 */
486static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen)
487{
488 return xutftowcsn(wcs, utf, wcslen, -1);
489}
490
491/**
492 * Simplified file system specific variant of xutftowcsn, assumes output
493 * buffer size is MAX_PATH wide chars and input string is \0-terminated,
494 * fails with ENAMETOOLONG if input string is too long.
495 */
496static inline int xutftowcs_path(wchar_t *wcs, const char *utf)
497{
498 int result = xutftowcsn(wcs, utf, MAX_PATH, -1);
499 if (result < 0 && errno == ERANGE)
500 errno = ENAMETOOLONG;
501 return result;
502}
503
504/**
505 * Converts UTF-16LE encoded string to UTF-8.
506 *
507 * Maximum space requirement for the target buffer is three UTF-8 chars per
508 * wide char ((_wcslen(wcs) * 3) + 1).
509 *
510 * The maximum space is needed only if the entire input string consists of
511 * UTF-16 words in range 0x0800-0xd7ff or 0xe000-0xffff (i.e. \u0800-\uffff
512 * modulo surrogate pairs), as per the following table:
513 *
514 * | | UTF-16 | UTF-8 |
515 * Code point | UTF-16 sequence | words | bytes | ratio
516 * --------------+-----------------------+--------+-------+-------
517 * 000000-00007f | 0000-007f | 1 | 1 | 1
518 * 000080-0007ff | 0080-07ff | 1 | 2 | 2
519 * 000800-00ffff | 0800-d7ff / e000-ffff | 1 | 3 | 3
520 * 010000-10ffff | d800-dbff + dc00-dfff | 2 | 4 | 2
521 *
522 * Note that invalid code points > 10ffff cannot be represented in UTF-16.
523 *
524 * Parameters:
525 * utf: target buffer
526 * wcs: wide string to convert
527 * utflen: size of target buffer
528 *
529 * Returns:
530 * length of converted string, or -1 on failure
531 *
532 * Errors:
533 * EINVAL: one of the input parameters is invalid (e.g. NULL)
534 * ERANGE: the output buffer is too small
535 */
536int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen);
537
657b35f4
RJ
538/*
539 * A critical section used in the implementation of the spawn
540 * functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
541 * the replacement main() macro below.
542 */
543extern CRITICAL_SECTION pinfo_cs;
544
35eeef47 545/*
13f1df43 546 * A replacement of main() that adds win32 specific initialization.
35eeef47
JS
547 */
548
0767172b
JS
549void mingw_startup(void);
550#define main(c,v) dummy_decl_mingw_main(void); \
84d32bf7 551static int mingw_main(c,v); \
08aade70 552int main(int argc, const char **argv) \
35eeef47 553{ \
13f1df43 554 mingw_startup(); \
a15d4af4 555 return mingw_main(__argc, (void *)__argv); \
35eeef47
JS
556} \
557static int mingw_main(c,v)
e16c60d9 558
44626dc7
AH
559/*
560 * Used by Pthread API implementation for Windows
561 */
562extern int err_win_to_posix(DWORD winerr);