Andrew's git - gitweb.git/blob

   1#include <winsock2.h>
   2#include <ws2tcpip.h>
   3
   4/*
   5 * things that are not available in header files
   6 */
   7
   8typedef int pid_t;
   9typedef int uid_t;
  10typedef int socklen_t;
  11#define hstrerror strerror
  12
  13#define S_IFLNK    0120000 /* Symbolic link */
  14#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  15#define S_ISSOCK(x) 0
  16
  17#ifndef _STAT_H_
  18#define S_IRUSR 0
  19#define S_IWUSR 0
  20#define S_IXUSR 0
  21#define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
  22#endif
  23#define S_IRGRP 0
  24#define S_IWGRP 0
  25#define S_IXGRP 0
  26#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  27#define S_IROTH 0
  28#define S_IWOTH 0
  29#define S_IXOTH 0
  30#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  31#define S_ISUID 0
  32#define S_ISGID 0
  33#define S_ISVTX 0
  34
  35#define WIFEXITED(x) 1
  36#define WIFSIGNALED(x) 0
  37#define WEXITSTATUS(x) ((x) & 0xff)
  38#define WTERMSIG(x) SIGTERM
  39
  40#define EWOULDBLOCK EAGAIN
  41#define SHUT_WR SD_SEND
  42
  43#define SIGHUP 1
  44#define SIGQUIT 3
  45#define SIGKILL 9
  46#define SIGPIPE 13
  47#define SIGALRM 14
  48#define SIGCHLD 17
  49
  50#define F_GETFD 1
  51#define F_SETFD 2
  52#define FD_CLOEXEC 0x1
  53
  54#define EAFNOSUPPORT WSAEAFNOSUPPORT
  55#define ECONNABORTED WSAECONNABORTED
  56
  57struct passwd {
  58        char *pw_name;
  59        char *pw_gecos;
  60        char *pw_dir;
  61};
  62
  63extern char *getpass(const char *prompt);
  64
  65typedef void (__cdecl *sig_handler_t)(int);
  66struct sigaction {
  67        sig_handler_t sa_handler;
  68        unsigned sa_flags;
  69};
  70#define sigemptyset(x) (void)0
  71#define SA_RESTART 0
  72
  73struct itimerval {
  74        struct timeval it_value, it_interval;
  75};
  76#define ITIMER_REAL 0
  77
  78/*
  79 * sanitize preprocessor namespace polluted by Windows headers defining
  80 * macros which collide with git local versions
  81 */
  82#undef HELP_COMMAND /* from winuser.h */
  83
  84/*
  85 * trivial stubs
  86 */
  87
  88static inline int readlink(const char *path, char *buf, size_t bufsiz)
  89{ errno = ENOSYS; return -1; }
  90static inline int symlink(const char *oldpath, const char *newpath)
  91{ errno = ENOSYS; return -1; }
  92static inline int fchmod(int fildes, mode_t mode)
  93{ errno = ENOSYS; return -1; }
  94static inline pid_t fork(void)
  95{ errno = ENOSYS; return -1; }
  96static inline unsigned int alarm(unsigned int seconds)
  97{ return 0; }
  98static inline int fsync(int fd)
  99{ return _commit(fd); }
 100static inline pid_t getppid(void)
 101{ return 1; }
 102static inline void sync(void)
 103{}
 104static inline uid_t getuid(void)
 105{ return 1; }
 106static inline struct passwd *getpwnam(const char *name)
 107{ return NULL; }
 108static inline int fcntl(int fd, int cmd, ...)
 109{
 110        if (cmd == F_GETFD || cmd == F_SETFD)
 111                return 0;
 112        errno = EINVAL;
 113        return -1;
 114}
 115/* bash cannot reliably detect negative return codes as failure */
 116#define exit(code) exit((code) & 0xff)
 117
 118/*
 119 * simple adaptors
 120 */
 121
 122static inline int mingw_mkdir(const char *path, int mode)
 123{
 124        return mkdir(path);
 125}
 126#define mkdir mingw_mkdir
 127
 128static inline int mingw_unlink(const char *pathname)
 129{
 130        /* read-only files cannot be removed */
 131        chmod(pathname, 0666);
 132        return unlink(pathname);
 133}
 134#define unlink mingw_unlink
 135
 136#define WNOHANG 1
 137pid_t waitpid(pid_t pid, int *status, unsigned options);
 138
 139#define kill mingw_kill
 140int mingw_kill(pid_t pid, int sig);
 141
 142#ifndef NO_OPENSSL
 143#include <openssl/ssl.h>
 144static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 145{
 146        return SSL_set_fd(ssl, _get_osfhandle(fd));
 147}
 148#define SSL_set_fd mingw_SSL_set_fd
 149
 150static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 151{
 152        return SSL_set_rfd(ssl, _get_osfhandle(fd));
 153}
 154#define SSL_set_rfd mingw_SSL_set_rfd
 155
 156static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 157{
 158        return SSL_set_wfd(ssl, _get_osfhandle(fd));
 159}
 160#define SSL_set_wfd mingw_SSL_set_wfd
 161#endif
 162
 163/*
 164 * implementations of missing functions
 165 */
 166
 167int pipe(int filedes[2]);
 168unsigned int sleep (unsigned int seconds);
 169int mkstemp(char *template);
 170int gettimeofday(struct timeval *tv, void *tz);
 171struct tm *gmtime_r(const time_t *timep, struct tm *result);
 172struct tm *localtime_r(const time_t *timep, struct tm *result);
 173int getpagesize(void);  /* defined in MinGW's libgcc.a */
 174struct passwd *getpwuid(uid_t uid);
 175int setitimer(int type, struct itimerval *in, struct itimerval *out);
 176int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 177int link(const char *oldpath, const char *newpath);
 178
 179/*
 180 * replacements of existing functions
 181 */
 182
 183int mingw_open (const char *filename, int oflags, ...);
 184#define open mingw_open
 185
 186ssize_t mingw_write(int fd, const void *buf, size_t count);
 187#define write mingw_write
 188
 189FILE *mingw_fopen (const char *filename, const char *otype);
 190#define fopen mingw_fopen
 191
 192FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 193#define freopen mingw_freopen
 194
 195char *mingw_getcwd(char *pointer, int len);
 196#define getcwd mingw_getcwd
 197
 198char *mingw_getenv(const char *name);
 199#define getenv mingw_getenv
 200
 201struct hostent *mingw_gethostbyname(const char *host);
 202#define gethostbyname mingw_gethostbyname
 203
 204void mingw_freeaddrinfo(struct addrinfo *res);
 205#define freeaddrinfo mingw_freeaddrinfo
 206
 207int mingw_getaddrinfo(const char *node, const char *service,
 208                      const struct addrinfo *hints, struct addrinfo **res);
 209#define getaddrinfo mingw_getaddrinfo
 210
 211int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 212                      char *host, DWORD hostlen, char *serv, DWORD servlen,
 213                      int flags);
 214#define getnameinfo mingw_getnameinfo
 215
 216int mingw_socket(int domain, int type, int protocol);
 217#define socket mingw_socket
 218
 219int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 220#define connect mingw_connect
 221
 222int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 223#define bind mingw_bind
 224
 225int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 226#define setsockopt mingw_setsockopt
 227
 228int mingw_listen(int sockfd, int backlog);
 229#define listen mingw_listen
 230
 231int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 232#define accept mingw_accept
 233
 234int mingw_rename(const char*, const char*);
 235#define rename mingw_rename
 236
 237#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 238int mingw_getpagesize(void);
 239#define getpagesize mingw_getpagesize
 240#endif
 241
 242/* Use mingw_lstat() instead of lstat()/stat() and
 243 * mingw_fstat() instead of fstat() on Windows.
 244 */
 245#define off_t off64_t
 246#define lseek _lseeki64
 247#ifndef ALREADY_DECLARED_STAT_FUNCS
 248#define stat _stati64
 249int mingw_lstat(const char *file_name, struct stat *buf);
 250int mingw_stat(const char *file_name, struct stat *buf);
 251int mingw_fstat(int fd, struct stat *buf);
 252#define fstat mingw_fstat
 253#define lstat mingw_lstat
 254#define _stati64(x,y) mingw_stat(x,y)
 255#endif
 256
 257int mingw_utime(const char *file_name, const struct utimbuf *times);
 258#define utime mingw_utime
 259
 260pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 261                     const char *dir,
 262                     int fhin, int fhout, int fherr);
 263void mingw_execvp(const char *cmd, char *const *argv);
 264#define execvp mingw_execvp
 265void mingw_execv(const char *cmd, char *const *argv);
 266#define execv mingw_execv
 267
 268static inline unsigned int git_ntohl(unsigned int x)
 269{ return (unsigned int)ntohl(x); }
 270#define ntohl git_ntohl
 271
 272sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 273#define signal mingw_signal
 274
 275/*
 276 * ANSI emulation wrappers
 277 */
 278
 279int winansi_fputs(const char *str, FILE *stream);
 280int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 281int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 282#define fputs winansi_fputs
 283#define printf(...) winansi_printf(__VA_ARGS__)
 284#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 285
 286/*
 287 * git specific compatibility
 288 */
 289
 290#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 291#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 292#define PATH_SEP ';'
 293#define PRIuMAX "I64u"
 294
 295void mingw_open_html(const char *path);
 296#define open_html mingw_open_html
 297
 298/*
 299 * helpers
 300 */
 301
 302char **make_augmented_environ(const char *const *vars);
 303void free_environ(char **env);
 304
 305/*
 306 * A replacement of main() that ensures that argv[0] has a path
 307 * and that default fmode and std(in|out|err) are in binary mode
 308 */
 309
 310#define main(c,v) dummy_decl_mingw_main(); \
 311static int mingw_main(); \
 312int main(int argc, const char **argv) \
 313{ \
 314        extern CRITICAL_SECTION pinfo_cs; \
 315        _fmode = _O_BINARY; \
 316        _setmode(_fileno(stdin), _O_BINARY); \
 317        _setmode(_fileno(stdout), _O_BINARY); \
 318        _setmode(_fileno(stderr), _O_BINARY); \
 319        argv[0] = xstrdup(_pgmptr); \
 320        InitializeCriticalSection(&pinfo_cs); \
 321        return mingw_main(argc, argv); \
 322} \
 323static int mingw_main(c,v)
 324
 325#ifndef NO_MINGW_REPLACE_READDIR
 326/*
 327 * A replacement of readdir, to ensure that it reads the file type at
 328 * the same time. This avoid extra unneeded lstats in git on MinGW
 329 */
 330#undef DT_UNKNOWN
 331#undef DT_DIR
 332#undef DT_REG
 333#undef DT_LNK
 334#define DT_UNKNOWN      0
 335#define DT_DIR          1
 336#define DT_REG          2
 337#define DT_LNK          3
 338
 339struct mingw_dirent
 340{
 341        long            d_ino;                  /* Always zero. */
 342        union {
 343                unsigned short  d_reclen;       /* Always zero. */
 344                unsigned char   d_type;         /* Reimplementation adds this */
 345        };
 346        unsigned short  d_namlen;               /* Length of name in d_name. */
 347        char            d_name[FILENAME_MAX];   /* File name. */
 348};
 349#define dirent mingw_dirent
 350#define readdir(x) mingw_readdir(x)
 351struct dirent *mingw_readdir(DIR *dir);
 352#endif // !NO_MINGW_REPLACE_READDIR
 353
 354/*
 355 * Used by Pthread API implementation for Windows
 356 */
 357extern int err_win_to_posix(DWORD winerr);