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628 lines
17 KiB
628 lines
17 KiB
#ifdef __MINGW64_VERSION_MAJOR |
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#include <stdint.h> |
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#include <wchar.h> |
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typedef _sigset_t sigset_t; |
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#endif |
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#include <winsock2.h> |
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#include <ws2tcpip.h> |
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|
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/* MinGW-w64 reports to have flockfile, but it does not actually have it. */ |
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#ifdef __MINGW64_VERSION_MAJOR |
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#undef _POSIX_THREAD_SAFE_FUNCTIONS |
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#endif |
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int mingw_core_config(const char *var, const char *value, void *cb); |
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#define platform_core_config mingw_core_config |
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|
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/* |
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* things that are not available in header files |
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*/ |
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typedef int uid_t; |
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typedef int socklen_t; |
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#ifndef __MINGW64_VERSION_MAJOR |
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typedef int pid_t; |
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#define hstrerror strerror |
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#endif |
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|
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#define S_IFLNK 0120000 /* Symbolic link */ |
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#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK) |
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#define S_ISSOCK(x) 0 |
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#ifndef S_IRWXG |
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#define S_IRGRP 0 |
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#define S_IWGRP 0 |
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#define S_IXGRP 0 |
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#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) |
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#endif |
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#ifndef S_IRWXO |
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#define S_IROTH 0 |
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#define S_IWOTH 0 |
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#define S_IXOTH 0 |
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#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) |
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#endif |
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#define S_ISUID 0004000 |
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#define S_ISGID 0002000 |
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#define S_ISVTX 0001000 |
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#define WIFEXITED(x) 1 |
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#define WIFSIGNALED(x) 0 |
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#define WEXITSTATUS(x) ((x) & 0xff) |
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#define WTERMSIG(x) SIGTERM |
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|
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#ifndef EWOULDBLOCK |
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#define EWOULDBLOCK EAGAIN |
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#endif |
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#ifndef ELOOP |
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#define ELOOP EMLINK |
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#endif |
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#define SHUT_WR SD_SEND |
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|
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#define SIGHUP 1 |
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#define SIGQUIT 3 |
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#define SIGKILL 9 |
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#define SIGPIPE 13 |
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#define SIGALRM 14 |
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#define SIGCHLD 17 |
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|
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#define F_GETFD 1 |
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#define F_SETFD 2 |
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#define FD_CLOEXEC 0x1 |
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|
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#if !defined O_CLOEXEC && defined O_NOINHERIT |
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#define O_CLOEXEC O_NOINHERIT |
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#endif |
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|
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#ifndef EAFNOSUPPORT |
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#define EAFNOSUPPORT WSAEAFNOSUPPORT |
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#endif |
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#ifndef ECONNABORTED |
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#define ECONNABORTED WSAECONNABORTED |
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#endif |
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#ifndef ENOTSOCK |
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#define ENOTSOCK WSAENOTSOCK |
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#endif |
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struct passwd { |
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char *pw_name; |
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char *pw_gecos; |
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char *pw_dir; |
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}; |
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typedef void (__cdecl *sig_handler_t)(int); |
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struct sigaction { |
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sig_handler_t sa_handler; |
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unsigned sa_flags; |
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}; |
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#define SA_RESTART 0 |
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struct itimerval { |
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struct timeval it_value, it_interval; |
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}; |
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#define ITIMER_REAL 0 |
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struct utsname { |
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char sysname[16]; |
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char nodename[1]; |
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char release[16]; |
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char version[16]; |
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char machine[1]; |
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}; |
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/* |
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* sanitize preprocessor namespace polluted by Windows headers defining |
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* macros which collide with git local versions |
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*/ |
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#undef HELP_COMMAND /* from winuser.h */ |
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|
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/* |
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* trivial stubs |
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*/ |
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static inline int readlink(const char *path, char *buf, size_t bufsiz) |
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{ errno = ENOSYS; return -1; } |
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static inline int symlink(const char *oldpath, const char *newpath) |
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{ errno = ENOSYS; return -1; } |
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static inline int fchmod(int fildes, mode_t mode) |
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{ errno = ENOSYS; return -1; } |
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#ifndef __MINGW64_VERSION_MAJOR |
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static inline pid_t fork(void) |
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{ errno = ENOSYS; return -1; } |
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#endif |
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static inline unsigned int alarm(unsigned int seconds) |
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{ return 0; } |
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static inline int fsync(int fd) |
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{ return _commit(fd); } |
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static inline void sync(void) |
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{} |
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static inline uid_t getuid(void) |
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{ return 1; } |
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static inline struct passwd *getpwnam(const char *name) |
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{ return NULL; } |
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static inline int fcntl(int fd, int cmd, ...) |
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{ |
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if (cmd == F_GETFD || cmd == F_SETFD) |
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return 0; |
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errno = EINVAL; |
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return -1; |
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} |
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#define sigemptyset(x) (void)0 |
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static inline int sigaddset(sigset_t *set, int signum) |
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{ return 0; } |
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#define SIG_BLOCK 0 |
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#define SIG_UNBLOCK 0 |
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static inline int sigprocmask(int how, const sigset_t *set, sigset_t *oldset) |
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{ return 0; } |
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static inline pid_t getppid(void) |
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{ return 1; } |
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static inline pid_t getpgid(pid_t pid) |
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{ return pid == 0 ? getpid() : pid; } |
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static inline pid_t tcgetpgrp(int fd) |
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{ return getpid(); } |
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/* |
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* simple adaptors |
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*/ |
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int mingw_mkdir(const char *path, int mode); |
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#define mkdir mingw_mkdir |
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#define WNOHANG 1 |
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pid_t waitpid(pid_t pid, int *status, int options); |
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#define kill mingw_kill |
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int mingw_kill(pid_t pid, int sig); |
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#ifndef NO_OPENSSL |
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#include <openssl/ssl.h> |
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static inline int mingw_SSL_set_fd(SSL *ssl, int fd) |
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{ |
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return SSL_set_fd(ssl, _get_osfhandle(fd)); |
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} |
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#define SSL_set_fd mingw_SSL_set_fd |
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static inline int mingw_SSL_set_rfd(SSL *ssl, int fd) |
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{ |
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return SSL_set_rfd(ssl, _get_osfhandle(fd)); |
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} |
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#define SSL_set_rfd mingw_SSL_set_rfd |
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static inline int mingw_SSL_set_wfd(SSL *ssl, int fd) |
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{ |
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return SSL_set_wfd(ssl, _get_osfhandle(fd)); |
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} |
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#define SSL_set_wfd mingw_SSL_set_wfd |
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#endif |
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/* |
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* implementations of missing functions |
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*/ |
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int pipe(int filedes[2]); |
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unsigned int sleep (unsigned int seconds); |
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int mkstemp(char *template); |
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int gettimeofday(struct timeval *tv, void *tz); |
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#ifndef __MINGW64_VERSION_MAJOR |
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struct tm *gmtime_r(const time_t *timep, struct tm *result); |
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struct tm *localtime_r(const time_t *timep, struct tm *result); |
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#endif |
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int getpagesize(void); /* defined in MinGW's libgcc.a */ |
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struct passwd *getpwuid(uid_t uid); |
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int setitimer(int type, struct itimerval *in, struct itimerval *out); |
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int sigaction(int sig, struct sigaction *in, struct sigaction *out); |
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int link(const char *oldpath, const char *newpath); |
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int uname(struct utsname *buf); |
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/* |
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* replacements of existing functions |
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*/ |
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int mingw_unlink(const char *pathname); |
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#define unlink mingw_unlink |
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int mingw_rmdir(const char *path); |
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#define rmdir mingw_rmdir |
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int mingw_open (const char *filename, int oflags, ...); |
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#define open mingw_open |
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#undef OPEN_RETURNS_EINTR |
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int mingw_fgetc(FILE *stream); |
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#define fgetc mingw_fgetc |
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FILE *mingw_fopen (const char *filename, const char *otype); |
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#define fopen mingw_fopen |
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FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream); |
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#define freopen mingw_freopen |
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int mingw_fflush(FILE *stream); |
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#define fflush mingw_fflush |
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ssize_t mingw_write(int fd, const void *buf, size_t len); |
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#define write mingw_write |
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int mingw_access(const char *filename, int mode); |
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#undef access |
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#define access mingw_access |
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int mingw_chdir(const char *dirname); |
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#define chdir mingw_chdir |
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int mingw_chmod(const char *filename, int mode); |
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#define chmod mingw_chmod |
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char *mingw_mktemp(char *template); |
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#define mktemp mingw_mktemp |
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char *mingw_getcwd(char *pointer, int len); |
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#define getcwd mingw_getcwd |
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#ifdef NO_UNSETENV |
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#error "NO_UNSETENV is incompatible with the Windows-specific startup code!" |
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#endif |
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/* |
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* We bind *env() routines (even the mingw_ ones) to private mingw_ versions. |
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* These talk to the CRT using UNICODE/wchar_t, but maintain the original |
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* narrow-char API. |
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* |
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* Note that the MSCRT maintains both ANSI (getenv()) and UNICODE (_wgetenv()) |
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* routines and stores both versions of each environment variable in parallel |
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* (and secretly updates both when you set one or the other), but it uses CP_ACP |
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* to do the conversion rather than CP_UTF8. |
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* |
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* Since everything in the git code base is UTF8, we define the mingw_ routines |
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* to access the CRT using the UNICODE routines and manually convert them to |
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* UTF8. This also avoids round-trip problems. |
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* |
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* This also helps with our linkage, since "_wenviron" is publicly exported |
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* from the CRT. But to access "_environ" we would have to statically link |
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* to the CRT (/MT). |
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* |
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* We require NO_SETENV (and let gitsetenv() call our mingw_putenv). |
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*/ |
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#define getenv mingw_getenv |
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#define putenv mingw_putenv |
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#define unsetenv mingw_putenv |
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char *mingw_getenv(const char *name); |
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int mingw_putenv(const char *name); |
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int mingw_gethostname(char *host, int namelen); |
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#define gethostname mingw_gethostname |
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struct hostent *mingw_gethostbyname(const char *host); |
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#define gethostbyname mingw_gethostbyname |
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int mingw_getaddrinfo(const char *node, const char *service, |
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const struct addrinfo *hints, struct addrinfo **res); |
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#define getaddrinfo mingw_getaddrinfo |
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int mingw_socket(int domain, int type, int protocol); |
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#define socket mingw_socket |
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int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz); |
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#define connect mingw_connect |
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int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz); |
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#define bind mingw_bind |
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int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen); |
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#define setsockopt mingw_setsockopt |
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int mingw_shutdown(int sockfd, int how); |
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#define shutdown mingw_shutdown |
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int mingw_listen(int sockfd, int backlog); |
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#define listen mingw_listen |
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int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz); |
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#define accept mingw_accept |
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int mingw_rename(const char*, const char*); |
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#define rename mingw_rename |
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#if defined(USE_WIN32_MMAP) || defined(_MSC_VER) |
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int mingw_getpagesize(void); |
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#define getpagesize mingw_getpagesize |
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#endif |
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int win32_fsync_no_flush(int fd); |
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#define fsync_no_flush win32_fsync_no_flush |
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#define FSYNC_COMPONENTS_PLATFORM_DEFAULT (FSYNC_COMPONENTS_DEFAULT | FSYNC_COMPONENT_LOOSE_OBJECT) |
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#define FSYNC_METHOD_DEFAULT (FSYNC_METHOD_BATCH) |
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struct rlimit { |
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unsigned int rlim_cur; |
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}; |
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#define RLIMIT_NOFILE 0 |
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static inline int getrlimit(int resource, struct rlimit *rlp) |
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{ |
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if (resource != RLIMIT_NOFILE) { |
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errno = EINVAL; |
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return -1; |
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} |
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rlp->rlim_cur = 2048; |
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return 0; |
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} |
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/* |
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* Use mingw specific stat()/lstat()/fstat() implementations on Windows, |
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* including our own struct stat with 64 bit st_size and nanosecond-precision |
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* file times. |
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*/ |
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#ifndef __MINGW64_VERSION_MAJOR |
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#define off_t off64_t |
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#define lseek _lseeki64 |
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#ifndef _MSC_VER |
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struct timespec { |
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time_t tv_sec; |
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long tv_nsec; |
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}; |
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#endif |
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#endif |
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struct mingw_stat { |
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_dev_t st_dev; |
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_ino_t st_ino; |
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_mode_t st_mode; |
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short st_nlink; |
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short st_uid; |
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short st_gid; |
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_dev_t st_rdev; |
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off64_t st_size; |
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struct timespec st_atim; |
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struct timespec st_mtim; |
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struct timespec st_ctim; |
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}; |
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#define st_atime st_atim.tv_sec |
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#define st_mtime st_mtim.tv_sec |
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#define st_ctime st_ctim.tv_sec |
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#ifdef stat |
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#undef stat |
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#endif |
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#define stat mingw_stat |
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int mingw_lstat(const char *file_name, struct stat *buf); |
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int mingw_stat(const char *file_name, struct stat *buf); |
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int mingw_fstat(int fd, struct stat *buf); |
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#ifdef fstat |
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#undef fstat |
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#endif |
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#define fstat mingw_fstat |
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#ifdef lstat |
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#undef lstat |
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#endif |
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#define lstat mingw_lstat |
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int mingw_utime(const char *file_name, const struct utimbuf *times); |
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#define utime mingw_utime |
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size_t mingw_strftime(char *s, size_t max, |
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const char *format, const struct tm *tm); |
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#define strftime mingw_strftime |
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pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env, |
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const char *dir, |
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int fhin, int fhout, int fherr); |
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int mingw_execvp(const char *cmd, char *const *argv); |
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#define execvp mingw_execvp |
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int mingw_execv(const char *cmd, char *const *argv); |
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#define execv mingw_execv |
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static inline unsigned int git_ntohl(unsigned int x) |
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{ return (unsigned int)ntohl(x); } |
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#define ntohl git_ntohl |
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sig_handler_t mingw_signal(int sig, sig_handler_t handler); |
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#define signal mingw_signal |
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int mingw_raise(int sig); |
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#define raise mingw_raise |
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/* |
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* ANSI emulation wrappers |
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*/ |
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int winansi_isatty(int fd); |
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#define isatty winansi_isatty |
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int winansi_dup2(int oldfd, int newfd); |
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#define dup2 winansi_dup2 |
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void winansi_init(void); |
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HANDLE winansi_get_osfhandle(int fd); |
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/* |
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* git specific compatibility |
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*/ |
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static inline void convert_slashes(char *path) |
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{ |
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for (; *path; path++) |
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if (*path == '\\') |
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*path = '/'; |
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} |
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#define PATH_SEP ';' |
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char *mingw_query_user_email(void); |
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#define query_user_email mingw_query_user_email |
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#if !defined(__MINGW64_VERSION_MAJOR) && (!defined(_MSC_VER) || _MSC_VER < 1800) |
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#define PRIuMAX "I64u" |
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#define PRId64 "I64d" |
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#else |
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#include <inttypes.h> |
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#endif |
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/** |
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* Verifies that the specified path is owned by the user running the |
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* current process. |
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*/ |
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int is_path_owned_by_current_sid(const char *path, struct strbuf *report); |
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#define is_path_owned_by_current_user is_path_owned_by_current_sid |
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/** |
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* Verifies that the given path is a valid one on Windows. |
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* |
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* In particular, path segments are disallowed which |
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* |
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* - end in a period or a space (except the special directories `.` and `..`). |
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* |
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* - contain any of the reserved characters, e.g. `:`, `;`, `*`, etc |
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* |
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* - correspond to reserved names (such as `AUX`, `PRN`, etc) |
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* |
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* The `allow_literal_nul` parameter controls whether the path `NUL` should |
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* be considered valid (this makes sense e.g. before opening files, as it is |
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* perfectly legitimate to open `NUL` on Windows, just as it is to open |
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* `/dev/null` on Unix/Linux). |
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* |
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* Returns 1 upon success, otherwise 0. |
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*/ |
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int is_valid_win32_path(const char *path, int allow_literal_nul); |
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#define is_valid_path(path) is_valid_win32_path(path, 0) |
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/** |
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* Converts UTF-8 encoded string to UTF-16LE. |
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* |
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* To support repositories with legacy-encoded file names, invalid UTF-8 bytes |
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* 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 - |
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* \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable |
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* Unicode) are converted to hex-code. |
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* |
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* Lead-bytes not followed by an appropriate number of trail-bytes, over-long |
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* encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8. |
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* |
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* Maximum space requirement for the target buffer is two wide chars per UTF-8 |
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* char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]). |
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* |
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* The maximum space is needed only if the entire input string consists of |
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* invalid UTF-8 bytes in range 0x80-0x9f, as per the following table: |
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* |
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* | | UTF-8 | UTF-16 | |
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* Code point | UTF-8 sequence | bytes | words | ratio |
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* --------------+-------------------+-------+--------+------- |
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* 000000-00007f | 0-7f | 1 | 1 | 1 |
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* 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5 |
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* 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33 |
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* 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5 |
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* invalid | 80-9f | 1 | 2 (b) | 2 |
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* invalid | a0-ff | 1 | 1 | 1 |
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* |
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* (a) encoded as UTF-16 surrogate pair |
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* (b) encoded as two hex digits |
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* |
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* Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte |
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* or even indefinite-byte sequences, the largest valid code point \u10ffff |
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* encodes as only 4 UTF-8 bytes. |
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* |
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* Parameters: |
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* wcs: wide char target buffer |
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* utf: string to convert |
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* wcslen: size of target buffer (in wchar_t's) |
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* utflen: size of string to convert, or -1 if 0-terminated |
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* |
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* Returns: |
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* length of converted string (_wcslen(wcs)), or -1 on failure |
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* |
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* Errors: |
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* EINVAL: one of the input parameters is invalid (e.g. NULL) |
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* ERANGE: the output buffer is too small |
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*/ |
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int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen); |
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|
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/** |
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* Simplified variant of xutftowcsn, assumes input string is \0-terminated. |
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*/ |
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static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen) |
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{ |
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return xutftowcsn(wcs, utf, wcslen, -1); |
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} |
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/** |
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* Simplified file system specific variant of xutftowcsn, assumes output |
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* buffer size is MAX_PATH wide chars and input string is \0-terminated, |
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* fails with ENAMETOOLONG if input string is too long. |
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*/ |
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static inline int xutftowcs_path(wchar_t *wcs, const char *utf) |
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{ |
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int result = xutftowcsn(wcs, utf, MAX_PATH, -1); |
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if (result < 0 && errno == ERANGE) |
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errno = ENAMETOOLONG; |
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return result; |
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} |
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|
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/** |
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* Converts UTF-16LE encoded string to UTF-8. |
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* |
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* Maximum space requirement for the target buffer is three UTF-8 chars per |
|
* wide char ((_wcslen(wcs) * 3) + 1). |
|
* |
|
* The maximum space is needed only if the entire input string consists of |
|
* UTF-16 words in range 0x0800-0xd7ff or 0xe000-0xffff (i.e. \u0800-\uffff |
|
* modulo surrogate pairs), as per the following table: |
|
* |
|
* | | UTF-16 | UTF-8 | |
|
* Code point | UTF-16 sequence | words | bytes | ratio |
|
* --------------+-----------------------+--------+-------+------- |
|
* 000000-00007f | 0000-007f | 1 | 1 | 1 |
|
* 000080-0007ff | 0080-07ff | 1 | 2 | 2 |
|
* 000800-00ffff | 0800-d7ff / e000-ffff | 1 | 3 | 3 |
|
* 010000-10ffff | d800-dbff + dc00-dfff | 2 | 4 | 2 |
|
* |
|
* Note that invalid code points > 10ffff cannot be represented in UTF-16. |
|
* |
|
* Parameters: |
|
* utf: target buffer |
|
* wcs: wide string to convert |
|
* utflen: size of target buffer |
|
* |
|
* Returns: |
|
* length of converted string, or -1 on failure |
|
* |
|
* Errors: |
|
* EINVAL: one of the input parameters is invalid (e.g. NULL) |
|
* ERANGE: the output buffer is too small |
|
*/ |
|
int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen); |
|
|
|
/* |
|
* A critical section used in the implementation of the spawn |
|
* functions (mingw_spawnv[p]e()) and waitpid(). Initialised in |
|
* the replacement main() macro below. |
|
*/ |
|
extern CRITICAL_SECTION pinfo_cs; |
|
|
|
/* |
|
* Git, like most portable C applications, implements a main() function. On |
|
* Windows, this main() function would receive parameters encoded in the |
|
* current locale, but Git for Windows would prefer UTF-8 encoded parameters. |
|
* |
|
* To make that happen, we still declare main() here, and then declare and |
|
* implement wmain() (which is the Unicode variant of main()) and compile with |
|
* -municode. This wmain() function reencodes the parameters from UTF-16 to |
|
* UTF-8 format, sets up a couple of other things as required on Windows, and |
|
* then hands off to the main() function. |
|
*/ |
|
int wmain(int argc, const wchar_t **w_argv); |
|
int main(int argc, const char **argv); |
|
|
|
/* |
|
* For debugging: if a problem occurs, say, in a Git process that is spawned |
|
* from another Git process which in turn is spawned from yet another Git |
|
* process, it can be quite daunting to figure out what is going on. |
|
* |
|
* Call this function to open a new MinTTY (this assumes you are in Git for |
|
* Windows' SDK) with a GDB that attaches to the current process right away. |
|
*/ |
|
void open_in_gdb(void); |
|
|
|
/* |
|
* Used by Pthread API implementation for Windows |
|
*/ |
|
int err_win_to_posix(DWORD winerr);
|
|
|