compat/mingw.h

   1 #include <winsock2.h>
   2 #include <ws2tcpip.h>
   3
   4 /*
   5  * things that are not available in header files
   6  */
   7
   8 typedef int pid_t;
   9 typedef int uid_t;
  10 typedef 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 SIGHUP 1
  41 #define SIGQUIT 3
  42 #define SIGKILL 9
  43 #define SIGPIPE 13
  44 #define SIGALRM 14
  45 #define SIGCHLD 17
  46
  47 #define F_GETFD 1
  48 #define F_SETFD 2
  49 #define FD_CLOEXEC 0x1
  50
  51 #define EAFNOSUPPORT WSAEAFNOSUPPORT
  52 #define ECONNABORTED WSAECONNABORTED
  53
  54 struct passwd {
  55         char *pw_name;
  56         char *pw_gecos;
  57         char *pw_dir;
  58 };
  59
  60 extern char *getpass(const char *prompt);
  61
  62 #ifndef POLLIN
  63 struct pollfd {
  64         int fd;           /* file descriptor */
  65         short events;     /* requested events */
  66         short revents;    /* returned events */
  67 };
  68 #define POLLIN 1
  69 #define POLLHUP 2
  70 #endif
  71
  72 typedef void (__cdecl *sig_handler_t)(int);
  73 struct sigaction {
  74         sig_handler_t sa_handler;
  75         unsigned sa_flags;
  76 };
  77 #define sigemptyset(x) (void)0
  78 #define SA_RESTART 0
  79
  80 struct itimerval {
  81         struct timeval it_value, it_interval;
  82 };
  83 #define ITIMER_REAL 0
  84
  85 /*
  86  * sanitize preprocessor namespace polluted by Windows headers defining
  87  * macros which collide with git local versions
  88  */
  89 #undef HELP_COMMAND /* from winuser.h */
  90
  91 /*
  92  * trivial stubs
  93  */
  94
  95 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  96 { errno = ENOSYS; return -1; }
  97 static inline int symlink(const char *oldpath, const char *newpath)
  98 { errno = ENOSYS; return -1; }
  99 static inline int fchmod(int fildes, mode_t mode)
 100 { errno = ENOSYS; return -1; }
 101 static inline pid_t fork(void)
 102 { errno = ENOSYS; return -1; }
 103 static inline unsigned int alarm(unsigned int seconds)
 104 { return 0; }
 105 static inline int fsync(int fd)
 106 { return _commit(fd); }
 107 static inline pid_t getppid(void)
 108 { return 1; }
 109 static inline void sync(void)
 110 {}
 111 static inline uid_t getuid(void)
 112 { return 1; }
 113 static inline struct passwd *getpwnam(const char *name)
 114 { return NULL; }
 115 static inline int fcntl(int fd, int cmd, ...)
 116 {
 117         if (cmd == F_GETFD || cmd == F_SETFD)
 118                 return 0;
 119         errno = EINVAL;
 120         return -1;
 121 }
 122 /* bash cannot reliably detect negative return codes as failure */
 123 #define exit(code) exit((code) & 0xff)
 124
 125 /*
 126  * simple adaptors
 127  */
 128
 129 static inline int mingw_mkdir(const char *path, int mode)
 130 {
 131         return mkdir(path);
 132 }
 133 #define mkdir mingw_mkdir
 134
 135 static inline int mingw_unlink(const char *pathname)
 136 {
 137         /* read-only files cannot be removed */
 138         chmod(pathname, 0666);
 139         return unlink(pathname);
 140 }
 141 #define unlink mingw_unlink
 142
 143 #define WNOHANG 1
 144 pid_t waitpid(pid_t pid, int *status, unsigned options);
 145
 146 #ifndef NO_OPENSSL
 147 #include <openssl/ssl.h>
 148 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 149 {
 150         return SSL_set_fd(ssl, _get_osfhandle(fd));
 151 }
 152 #define SSL_set_fd mingw_SSL_set_fd
 153
 154 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 155 {
 156         return SSL_set_rfd(ssl, _get_osfhandle(fd));
 157 }
 158 #define SSL_set_rfd mingw_SSL_set_rfd
 159
 160 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 161 {
 162         return SSL_set_wfd(ssl, _get_osfhandle(fd));
 163 }
 164 #define SSL_set_wfd mingw_SSL_set_wfd
 165 #endif
 166
 167 /*
 168  * implementations of missing functions
 169  */
 170
 171 int pipe(int filedes[2]);
 172 unsigned int sleep (unsigned int seconds);
 173 int mkstemp(char *template);
 174 int gettimeofday(struct timeval *tv, void *tz);
 175 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 176 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 177 struct tm *localtime_r(const time_t *timep, struct tm *result);
 178 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 179 struct passwd *getpwuid(uid_t uid);
 180 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 181 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 182 int link(const char *oldpath, const char *newpath);
 183
 184 /*
 185  * replacements of existing functions
 186  */
 187
 188 int mingw_open (const char *filename, int oflags, ...);
 189 #define open mingw_open
 190
 191 ssize_t mingw_write(int fd, const void *buf, size_t count);
 192 #define write mingw_write
 193
 194 FILE *mingw_fopen (const char *filename, const char *otype);
 195 #define fopen mingw_fopen
 196
 197 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 198 #define freopen mingw_freopen
 199
 200 char *mingw_getcwd(char *pointer, int len);
 201 #define getcwd mingw_getcwd
 202
 203 char *mingw_getenv(const char *name);
 204 #define getenv mingw_getenv
 205
 206 struct hostent *mingw_gethostbyname(const char *host);
 207 #define gethostbyname mingw_gethostbyname
 208
 209 void mingw_freeaddrinfo(struct addrinfo *res);
 210 #define freeaddrinfo mingw_freeaddrinfo
 211
 212 int mingw_getaddrinfo(const char *node, const char *service,
 213                       const struct addrinfo *hints, struct addrinfo **res);
 214 #define getaddrinfo mingw_getaddrinfo
 215
 216 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 217                       char *host, DWORD hostlen, char *serv, DWORD servlen,
 218                       int flags);
 219 #define getnameinfo mingw_getnameinfo
 220
 221 int mingw_socket(int domain, int type, int protocol);
 222 #define socket mingw_socket
 223
 224 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 225 #define connect mingw_connect
 226
 227 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 228 #define bind mingw_bind
 229
 230 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 231 #define setsockopt mingw_setsockopt
 232
 233 int mingw_listen(int sockfd, int backlog);
 234 #define listen mingw_listen
 235
 236 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 237 #define accept mingw_accept
 238
 239 int mingw_rename(const char*, const char*);
 240 #define rename mingw_rename
 241
 242 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 243 int mingw_getpagesize(void);
 244 #define getpagesize mingw_getpagesize
 245 #endif
 246
 247 /* Use mingw_lstat() instead of lstat()/stat() and
 248  * mingw_fstat() instead of fstat() on Windows.
 249  */
 250 #define off_t off64_t
 251 #define lseek _lseeki64
 252 #ifndef ALREADY_DECLARED_STAT_FUNCS
 253 #define stat _stati64
 254 int mingw_lstat(const char *file_name, struct stat *buf);
 255 int mingw_stat(const char *file_name, struct stat *buf);
 256 int mingw_fstat(int fd, struct stat *buf);
 257 #define fstat mingw_fstat
 258 #define lstat mingw_lstat
 259 #define _stati64(x,y) mingw_stat(x,y)
 260 #endif
 261
 262 int mingw_utime(const char *file_name, const struct utimbuf *times);
 263 #define utime mingw_utime
 264
 265 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 266                      const char *dir,
 267                      int fhin, int fhout, int fherr);
 268 void mingw_execvp(const char *cmd, char *const *argv);
 269 #define execvp mingw_execvp
 270 void mingw_execv(const char *cmd, char *const *argv);
 271 #define execv mingw_execv
 272
 273 static inline unsigned int git_ntohl(unsigned int x)
 274 { return (unsigned int)ntohl(x); }
 275 #define ntohl git_ntohl
 276
 277 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 278 #define signal mingw_signal
 279
 280 /*
 281  * ANSI emulation wrappers
 282  */
 283
 284 int winansi_fputs(const char *str, FILE *stream);
 285 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 286 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 287 #define fputs winansi_fputs
 288 #define printf(...) winansi_printf(__VA_ARGS__)
 289 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 290
 291 /*
 292  * git specific compatibility
 293  */
 294
 295 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 296 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 297 #define PATH_SEP ';'
 298 #define PRIuMAX "I64u"
 299
 300 void mingw_open_html(const char *path);
 301 #define open_html mingw_open_html
 302
 303 /*
 304  * helpers
 305  */
 306
 307 char **make_augmented_environ(const char *const *vars);
 308 void free_environ(char **env);
 309
 310 /*
 311  * A replacement of main() that ensures that argv[0] has a path
 312  * and that default fmode and std(in|out|err) are in binary mode
 313  */
 314
 315 #define main(c,v) dummy_decl_mingw_main(); \
 316 static int mingw_main(); \
 317 int main(int argc, const char **argv) \
 318 { \
 319         extern CRITICAL_SECTION pinfo_cs; \
 320         _fmode = _O_BINARY; \
 321         _setmode(_fileno(stdin), _O_BINARY); \
 322         _setmode(_fileno(stdout), _O_BINARY); \
 323         _setmode(_fileno(stderr), _O_BINARY); \
 324         argv[0] = xstrdup(_pgmptr); \
 325         InitializeCriticalSection(&pinfo_cs); \
 326         return mingw_main(argc, argv); \
 327 } \
 328 static int mingw_main(c,v)
 329
 330 #ifndef NO_MINGW_REPLACE_READDIR
 331 /*
 332  * A replacement of readdir, to ensure that it reads the file type at
 333  * the same time. This avoid extra unneeded lstats in git on MinGW
 334  */
 335 #undef DT_UNKNOWN
 336 #undef DT_DIR
 337 #undef DT_REG
 338 #undef DT_LNK
 339 #define DT_UNKNOWN      0
 340 #define DT_DIR          1
 341 #define DT_REG          2
 342 #define DT_LNK          3
 343
 344 struct mingw_dirent
 345 {
 346         long            d_ino;                  /* Always zero. */
 347         union {
 348                 unsigned short  d_reclen;       /* Always zero. */
 349                 unsigned char   d_type;         /* Reimplementation adds this */
 350         };
 351         unsigned short  d_namlen;               /* Length of name in d_name. */
 352         char            d_name[FILENAME_MAX];   /* File name. */
 353 };
 354 #define dirent mingw_dirent
 355 #define readdir(x) mingw_readdir(x)
 356 struct dirent *mingw_readdir(DIR *dir);
 357 #endif // !NO_MINGW_REPLACE_READDIR
 358
 359 /*
 360  * Used by Pthread API implementation for Windows
 361  */
 362 extern int err_win_to_posix(DWORD winerr);