diff options
Diffstat (limited to 'compat/mingw.h')
| -rw-r--r-- | compat/mingw.h | 499 |
1 files changed, 499 insertions, 0 deletions
diff --git a/compat/mingw.h b/compat/mingw.h new file mode 100644 index 0000000..5e499cf --- /dev/null +++ b/compat/mingw.h @@ -0,0 +1,499 @@ +#include <winsock2.h> +#include <ws2tcpip.h> + +/* + * things that are not available in header files + */ + +typedef int pid_t; +typedef int uid_t; +typedef int socklen_t; +#define hstrerror strerror + +#define S_IFLNK 0120000 /* Symbolic link */ +#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK) +#define S_ISSOCK(x) 0 + +#define S_IRGRP 0 +#define S_IWGRP 0 +#define S_IXGRP 0 +#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP) +#define S_IROTH 0 +#define S_IWOTH 0 +#define S_IXOTH 0 +#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) + +#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 + +#ifndef EAFNOSUPPORT +#define EAFNOSUPPORT WSAEAFNOSUPPORT +#endif +#ifndef ECONNABORTED +#define ECONNABORTED WSAECONNABORTED +#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 + +/* + * 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, char *buf, size_t bufsiz) +{ errno = ENOSYS; return -1; } +static inline int symlink(const char *oldpath, const char *newpath) +{ errno = ENOSYS; return -1; } +static inline int fchmod(int fildes, mode_t mode) +{ errno = ENOSYS; return -1; } +static inline pid_t fork(void) +{ errno = ENOSYS; return -1; } +static inline unsigned int alarm(unsigned int seconds) +{ return 0; } +static inline int fsync(int fd) +{ return _commit(fd); } +static inline pid_t getppid(void) +{ return 1; } +static inline void sync(void) +{} +static inline uid_t getuid(void) +{ return 1; } +static inline struct passwd *getpwnam(const char *name) +{ return NULL; } +static inline int fcntl(int fd, int cmd, ...) +{ + if (cmd == F_GETFD || cmd == F_SETFD) + return 0; + errno = EINVAL; + return -1; +} +/* bash cannot reliably detect negative return codes as failure */ +#define exit(code) exit((code) & 0xff) +#define sigemptyset(x) (void)0 +static inline int sigaddset(sigset_t *set, int signum) +{ return 0; } +#define SIG_UNBLOCK 0 +static inline int sigprocmask(int how, const sigset_t *set, sigset_t *oldset) +{ return 0; } + +/* + * 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); + +#ifndef NO_OPENSSL +#include <openssl/ssl.h> +static inline int mingw_SSL_set_fd(SSL *ssl, int fd) +{ + return SSL_set_fd(ssl, _get_osfhandle(fd)); +} +#define SSL_set_fd mingw_SSL_set_fd + +static inline int mingw_SSL_set_rfd(SSL *ssl, int fd) +{ + return SSL_set_rfd(ssl, _get_osfhandle(fd)); +} +#define SSL_set_rfd mingw_SSL_set_rfd + +static inline int mingw_SSL_set_wfd(SSL *ssl, int fd) +{ + return SSL_set_wfd(ssl, _get_osfhandle(fd)); +} +#define SSL_set_wfd mingw_SSL_set_wfd +#endif + +/* + * 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); +struct tm *gmtime_r(const time_t *timep, struct tm *result); +struct tm *localtime_r(const time_t *timep, struct tm *result); +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); + +/* + * replacements of existing functions + */ + +int mingw_unlink(const char *pathname); +#define unlink mingw_unlink + +int mingw_rmdir(const char *path); +#define rmdir mingw_rmdir + +int mingw_open (const char *filename, int oflags, ...); +#define open mingw_open + +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 + +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 + +char *mingw_getenv(const char *name); +#define getenv mingw_getenv +int mingw_putenv(const char *namevalue); +#define putenv mingw_putenv +#define unsetenv mingw_putenv + +int mingw_gethostname(char *host, int namelen); +#define gethostname mingw_gethostname + +struct hostent *mingw_gethostbyname(const char *host); +#define gethostbyname mingw_gethostbyname + +void mingw_freeaddrinfo(struct addrinfo *res); +#define freeaddrinfo mingw_freeaddrinfo + +int mingw_getaddrinfo(const char *node, const char *service, + const struct addrinfo *hints, struct addrinfo **res); +#define getaddrinfo mingw_getaddrinfo + +int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, DWORD hostlen, char *serv, DWORD servlen, + int flags); +#define getnameinfo mingw_getnameinfo + +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 + +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. + */ +#define off_t off64_t +#define lseek _lseeki64 + +/* use struct stat with 64 bit st_size */ +#ifdef stat +#undef stat +#endif +#define stat _stati64 +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 + +#ifndef _stati64 +# define _stati64(x,y) mingw_stat(x,y) +#elif defined (_USE_32BIT_TIME_T) +# define _stat32i64(x,y) mingw_stat(x,y) +#else +# define _stat64(x,y) mingw_stat(x,y) +#endif + +int mingw_utime(const char *file_name, const struct utimbuf *times); +#define utime mingw_utime + +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 + */ + +void winansi_init(void); +HANDLE winansi_get_osfhandle(int fd); + +/* + * git specific compatibility + */ + +#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':') +#define is_dir_sep(c) ((c) == '/' || (c) == '\\') +static inline char *mingw_find_last_dir_sep(const char *path) +{ + char *ret = NULL; + for (; *path; ++path) + if (is_dir_sep(*path)) + ret = (char *)path; + return ret; +} +#define find_last_dir_sep mingw_find_last_dir_sep +int mingw_offset_1st_component(const char *path); +#define offset_1st_component mingw_offset_1st_component +#define PATH_SEP ';' +#define PRIuMAX "I64u" +#define PRId64 "I64d" + +void mingw_open_html(const char *path); +#define open_html mingw_open_html + +void mingw_mark_as_git_dir(const char *dir); +#define mark_as_git_dir mingw_mark_as_git_dir + +/** + * Converts UTF-8 encoded string to UTF-16LE. + * + * To support repositories with legacy-encoded file names, invalid UTF-8 bytes + * 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 - + * \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable + * Unicode) are converted to hex-code. + * + * Lead-bytes not followed by an appropriate number of trail-bytes, over-long + * encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8. + * + * Maximum space requirement for the target buffer is two wide chars per UTF-8 + * char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]). + * + * The maximum space is needed only if the entire input string consists of + * invalid UTF-8 bytes in range 0x80-0x9f, as per the following table: + * + * | | UTF-8 | UTF-16 | + * Code point | UTF-8 sequence | bytes | words | ratio + * --------------+-------------------+-------+--------+------- + * 000000-00007f | 0-7f | 1 | 1 | 1 + * 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5 + * 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33 + * 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5 + * invalid | 80-9f | 1 | 2 (b) | 2 + * invalid | a0-ff | 1 | 1 | 1 + * + * (a) encoded as UTF-16 surrogate pair + * (b) encoded as two hex digits + * + * Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte + * or even indefinite-byte sequences, the largest valid code point \u10ffff + * encodes as only 4 UTF-8 bytes. + * + * Parameters: + * wcs: wide char target buffer + * utf: string to convert + * wcslen: size of target buffer (in wchar_t's) + * utflen: size of string to convert, or -1 if 0-terminated + * + * Returns: + * length of converted string (_wcslen(wcs)), or -1 on failure + * + * Errors: + * EINVAL: one of the input parameters is invalid (e.g. NULL) + * ERANGE: the output buffer is too small + */ +int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen); + +/** + * Simplified variant of xutftowcsn, assumes input string is \0-terminated. + */ +static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen) +{ + return xutftowcsn(wcs, utf, wcslen, -1); +} + +/** + * Simplified file system specific variant of xutftowcsn, assumes output + * buffer size is MAX_PATH wide chars and input string is \0-terminated, + * fails with ENAMETOOLONG if input string is too long. + */ +static inline int xutftowcs_path(wchar_t *wcs, const char *utf) +{ + int result = xutftowcsn(wcs, utf, MAX_PATH, -1); + if (result < 0 && errno == ERANGE) + errno = ENAMETOOLONG; + return result; +} + +/** + * Converts UTF-16LE encoded string to UTF-8. + * + * 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(). Intialised in + * the replacement main() macro below. + */ +extern CRITICAL_SECTION pinfo_cs; + +/* + * A replacement of main() that adds win32 specific initialization. + */ + +void mingw_startup(); +#define main(c,v) dummy_decl_mingw_main(); \ +static int mingw_main(c,v); \ +int main(int argc, char **argv) \ +{ \ + mingw_startup(); \ + return mingw_main(__argc, (void *)__argv); \ +} \ +static int mingw_main(c,v) + +/* + * Used by Pthread API implementation for Windows + */ +extern int err_win_to_posix(DWORD winerr); |