diff options
Diffstat (limited to 'compat/mingw-posix.h')
| -rw-r--r-- | compat/mingw-posix.h | 436 |
1 files changed, 436 insertions, 0 deletions
diff --git a/compat/mingw-posix.h b/compat/mingw-posix.h new file mode 100644 index 0000000000..631a208684 --- /dev/null +++ b/compat/mingw-posix.h @@ -0,0 +1,436 @@ +#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 +#define SA_NOCLDSTOP 1 + +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 */ |