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git/compat/mingw-posix.h

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#ifndef COMPAT_MINGW_POSIX_H
#define COMPAT_MINGW_POSIX_H
#ifdef __MINGW64_VERSION_MAJOR
#include <stdint.h>
#include <wchar.h>
typedef _sigset_t sigset_t;
#endif
#include <winsock2.h>
#include <ws2tcpip.h>
/* MinGW-w64 reports to have flockfile, but it does not actually have it. */
#ifdef __MINGW64_VERSION_MAJOR
#undef _POSIX_THREAD_SAFE_FUNCTIONS
#endif
/*
* things that are not available in header files
*/
typedef int uid_t;
typedef int socklen_t;
#ifndef __MINGW64_VERSION_MAJOR
typedef int pid_t;
#define hstrerror strerror
#endif
#define S_IFLNK 0120000 /* Symbolic link */
#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
#define S_ISSOCK(x) 0
#ifndef S_IRWXG
#define S_IRGRP 0
#define S_IWGRP 0
#define S_IXGRP 0
#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
#endif
#ifndef S_IRWXO
#define S_IROTH 0
#define S_IWOTH 0
#define S_IXOTH 0
#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
#endif
#define S_ISUID 0004000
#define S_ISGID 0002000
#define S_ISVTX 0001000
#define WIFEXITED(x) 1
#define WIFSIGNALED(x) 0
#define WEXITSTATUS(x) ((x) & 0xff)
#define WTERMSIG(x) SIGTERM
#ifndef EWOULDBLOCK
#define EWOULDBLOCK EAGAIN
#endif
#ifndef ELOOP
#define ELOOP EMLINK
#endif
#define SHUT_WR SD_SEND
#define SIGHUP 1
#define SIGQUIT 3
#define SIGKILL 9
#define SIGPIPE 13
#define SIGALRM 14
#define SIGCHLD 17
#define F_GETFD 1
#define F_SETFD 2
#define FD_CLOEXEC 0x1
#if !defined O_CLOEXEC && defined O_NOINHERIT
#define O_CLOEXEC O_NOINHERIT
#endif
#ifndef EAFNOSUPPORT
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#endif
#ifndef ECONNABORTED
#define ECONNABORTED WSAECONNABORTED
#endif
#ifndef ENOTSOCK
#define ENOTSOCK WSAENOTSOCK
#endif
struct passwd {
char *pw_name;
char *pw_gecos;
char *pw_dir;
};
typedef void (__cdecl *sig_handler_t)(int);
struct sigaction {
sig_handler_t sa_handler;
unsigned sa_flags;
};
#define SA_RESTART 0
struct itimerval {
struct timeval it_value, it_interval;
};
#define ITIMER_REAL 0
struct utsname {
char sysname[16];
char nodename[1];
char release[16];
char version[16];
char machine[1];
};
/*
* sanitize preprocessor namespace polluted by Windows headers defining
* macros which collide with git local versions
*/
#undef HELP_COMMAND /* from winuser.h */
/*
* trivial stubs
*/
static inline int readlink(const char *path UNUSED, char *buf UNUSED, size_t bufsiz UNUSED)
{ errno = ENOSYS; return -1; }
static inline int symlink(const char *oldpath UNUSED, const char *newpath UNUSED)
{ errno = ENOSYS; return -1; }
static inline int fchmod(int fildes UNUSED, mode_t mode UNUSED)
{ errno = ENOSYS; return -1; }
#ifndef __MINGW64_VERSION_MAJOR
static inline pid_t fork(void)
{ errno = ENOSYS; return -1; }
#endif
static inline unsigned int alarm(unsigned int seconds UNUSED)
{ return 0; }
static inline int fsync(int fd)
{ return _commit(fd); }
static inline void sync(void)
{}
static inline uid_t getuid(void)
{ return 1; }
static inline struct passwd *getpwnam(const char *name UNUSED)
{ return NULL; }
static inline int fcntl(int fd UNUSED, int cmd, ...)
{
if (cmd == F_GETFD || cmd == F_SETFD)
return 0;
errno = EINVAL;
return -1;
}
#define sigemptyset(x) (void)0
static inline int sigaddset(sigset_t *set UNUSED, int signum UNUSED)
{ return 0; }
#define SIG_BLOCK 0
#define SIG_UNBLOCK 0
static inline int sigprocmask(int how UNUSED, const sigset_t *set UNUSED, sigset_t *oldset UNUSED)
{ return 0; }
static inline pid_t getppid(void)
{ return 1; }
static inline pid_t getpgid(pid_t pid)
{ return pid == 0 ? getpid() : pid; }
static inline pid_t tcgetpgrp(int fd UNUSED)
{ return getpid(); }
/*
* simple adaptors
*/
int mingw_mkdir(const char *path, int mode);
#define mkdir mingw_mkdir
#define WNOHANG 1
pid_t waitpid(pid_t pid, int *status, int options);
#define kill mingw_kill
int mingw_kill(pid_t pid, int sig);
#define locate_in_PATH mingw_locate_in_PATH
char *mingw_locate_in_PATH(const char *cmd);
/*
* implementations of missing functions
*/
int pipe(int filedes[2]);
unsigned int sleep (unsigned int seconds);
int mkstemp(char *template);
int gettimeofday(struct timeval *tv, void *tz);
#ifndef __MINGW64_VERSION_MAJOR
struct tm *gmtime_r(const time_t *timep, struct tm *result);
struct tm *localtime_r(const time_t *timep, struct tm *result);
#endif
int getpagesize(void); /* defined in MinGW's libgcc.a */
struct passwd *getpwuid(uid_t uid);
int setitimer(int type, struct itimerval *in, struct itimerval *out);
int sigaction(int sig, struct sigaction *in, struct sigaction *out);
int link(const char *oldpath, const char *newpath);
int uname(struct utsname *buf);
/*
* replacements of existing functions
*/
int mingw_unlink(const char *pathname, int handle_in_use_error);
#ifdef MINGW_DONT_HANDLE_IN_USE_ERROR
# define unlink(path) mingw_unlink(path, 0)
#else
# define unlink(path) mingw_unlink(path, 1)
#endif
int mingw_rmdir(const char *path);
#define rmdir mingw_rmdir
int mingw_open (const char *filename, int oflags, ...);
#define open mingw_open
#undef OPEN_RETURNS_EINTR
int mingw_fgetc(FILE *stream);
#define fgetc mingw_fgetc
FILE *mingw_fopen (const char *filename, const char *otype);
#define fopen mingw_fopen
FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
#define freopen mingw_freopen
int mingw_fflush(FILE *stream);
#define fflush mingw_fflush
ssize_t mingw_write(int fd, const void *buf, size_t len);
#define write mingw_write
int mingw_access(const char *filename, int mode);
#undef access
#define access mingw_access
int mingw_chdir(const char *dirname);
#define chdir mingw_chdir
int mingw_chmod(const char *filename, int mode);
#define chmod mingw_chmod
char *mingw_mktemp(char *template);
#define mktemp mingw_mktemp
char *mingw_getcwd(char *pointer, int len);
#define getcwd mingw_getcwd
#ifdef NO_UNSETENV
#error "NO_UNSETENV is incompatible with the Windows-specific startup code!"
#endif
/*
* We bind *env() routines (even the mingw_ ones) to private mingw_ versions.
* These talk to the CRT using UNICODE/wchar_t, but maintain the original
* narrow-char API.
*
* Note that the MSCRT maintains both ANSI (getenv()) and UNICODE (_wgetenv())
* routines and stores both versions of each environment variable in parallel
* (and secretly updates both when you set one or the other), but it uses CP_ACP
* to do the conversion rather than CP_UTF8.
*
* Since everything in the git code base is UTF8, we define the mingw_ routines
* to access the CRT using the UNICODE routines and manually convert them to
* UTF8. This also avoids round-trip problems.
*
* This also helps with our linkage, since "_wenviron" is publicly exported
* from the CRT. But to access "_environ" we would have to statically link
* to the CRT (/MT).
*
* We require NO_SETENV (and let gitsetenv() call our mingw_putenv).
*/
#define getenv mingw_getenv
#define putenv mingw_putenv
#define unsetenv mingw_putenv
char *mingw_getenv(const char *name);
int mingw_putenv(const char *name);
int mingw_gethostname(char *host, int namelen);
#define gethostname mingw_gethostname
struct hostent *mingw_gethostbyname(const char *host);
#define gethostbyname mingw_gethostbyname
int mingw_getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
#define getaddrinfo mingw_getaddrinfo
int mingw_socket(int domain, int type, int protocol);
#define socket mingw_socket
int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
#define connect mingw_connect
int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
#define bind mingw_bind
int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
#define setsockopt mingw_setsockopt
int mingw_shutdown(int sockfd, int how);
#define shutdown mingw_shutdown
int mingw_listen(int sockfd, int backlog);
#define listen mingw_listen
int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
#define accept mingw_accept
int mingw_rename(const char*, const char*);
#define rename mingw_rename
#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
int mingw_getpagesize(void);
#define getpagesize mingw_getpagesize
#endif
int win32_fsync_no_flush(int fd);
#define fsync_no_flush win32_fsync_no_flush
#define FSYNC_COMPONENTS_PLATFORM_DEFAULT (FSYNC_COMPONENTS_DEFAULT | FSYNC_COMPONENT_LOOSE_OBJECT)
#define FSYNC_METHOD_DEFAULT (FSYNC_METHOD_BATCH)
struct rlimit {
unsigned int rlim_cur;
};
#define RLIMIT_NOFILE 0
static inline int getrlimit(int resource, struct rlimit *rlp)
{
if (resource != RLIMIT_NOFILE) {
errno = EINVAL;
return -1;
}
rlp->rlim_cur = 2048;
return 0;
}
/*
* Use mingw specific stat()/lstat()/fstat() implementations on Windows,
* including our own struct stat with 64 bit st_size and nanosecond-precision
* file times.
*/
#ifndef __MINGW64_VERSION_MAJOR
#define off_t off64_t
#define lseek _lseeki64
#ifndef _MSC_VER
struct timespec {
time_t tv_sec;
long tv_nsec;
};
#endif
#endif
struct mingw_stat {
_dev_t st_dev;
_ino_t st_ino;
_mode_t st_mode;
short st_nlink;
short st_uid;
short st_gid;
_dev_t st_rdev;
off64_t st_size;
struct timespec st_atim;
struct timespec st_mtim;
struct timespec st_ctim;
};
#define st_atime st_atim.tv_sec
#define st_mtime st_mtim.tv_sec
#define st_ctime st_ctim.tv_sec
#ifdef stat
#undef stat
#endif
#define stat mingw_stat
int mingw_lstat(const char *file_name, struct stat *buf);
int mingw_stat(const char *file_name, struct stat *buf);
int mingw_fstat(int fd, struct stat *buf);
#ifdef fstat
#undef fstat
#endif
#define fstat mingw_fstat
#ifdef lstat
#undef lstat
#endif
#define lstat mingw_lstat
int mingw_utime(const char *file_name, const struct utimbuf *times);
#define utime mingw_utime
size_t mingw_strftime(char *s, size_t max,
const char *format, const struct tm *tm);
#define strftime mingw_strftime
pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
const char *dir,
int fhin, int fhout, int fherr);
int mingw_execvp(const char *cmd, char *const *argv);
#define execvp mingw_execvp
int mingw_execv(const char *cmd, char *const *argv);
#define execv mingw_execv
static inline unsigned int git_ntohl(unsigned int x)
{ return (unsigned int)ntohl(x); }
#define ntohl git_ntohl
sig_handler_t mingw_signal(int sig, sig_handler_t handler);
#define signal mingw_signal
int mingw_raise(int sig);
#define raise mingw_raise
/*
* ANSI emulation wrappers
*/
int winansi_isatty(int fd);
#define isatty winansi_isatty
int winansi_dup2(int oldfd, int newfd);
#define dup2 winansi_dup2
void winansi_init(void);
HANDLE winansi_get_osfhandle(int fd);
#if !defined(__MINGW64_VERSION_MAJOR) && (!defined(_MSC_VER) || _MSC_VER < 1800)
#define PRIuMAX "I64u"
#define PRId64 "I64d"
#else
#include <inttypes.h>
#endif
#endif /* COMPAT_MINGW_POSIX_H */
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