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 #define kill mingw_kill
 147 int mingw_kill(pid_t pid, int sig);
 148
 149 #ifndef NO_OPENSSL
 150 #include <openssl/ssl.h>
 151 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 152 {
 153         return SSL_set_fd(ssl, _get_osfhandle(fd));
 154 }
 155 #define SSL_set_fd mingw_SSL_set_fd
 156
 157 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 158 {
 159         return SSL_set_rfd(ssl, _get_osfhandle(fd));
 160 }
 161 #define SSL_set_rfd mingw_SSL_set_rfd
 162
 163 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 164 {
 165         return SSL_set_wfd(ssl, _get_osfhandle(fd));
 166 }
 167 #define SSL_set_wfd mingw_SSL_set_wfd
 168 #endif
 169
 170 /*
 171  * implementations of missing functions
 172  */
 173
 174 int pipe(int filedes[2]);
 175 unsigned int sleep (unsigned int seconds);
 176 int mkstemp(char *template);
 177 int gettimeofday(struct timeval *tv, void *tz);
 178 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 179 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 180 struct tm *localtime_r(const time_t *timep, struct tm *result);
 181 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 182 struct passwd *getpwuid(uid_t uid);
 183 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 184 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 185 int link(const char *oldpath, const char *newpath);
 186
 187 /*
 188  * replacements of existing functions
 189  */
 190
 191 int mingw_open (const char *filename, int oflags, ...);
 192 #define open mingw_open
 193
 194 ssize_t mingw_write(int fd, const void *buf, size_t count);
 195 #define write mingw_write
 196
 197 FILE *mingw_fopen (const char *filename, const char *otype);
 198 #define fopen mingw_fopen
 199
 200 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 201 #define freopen mingw_freopen
 202
 203 char *mingw_getcwd(char *pointer, int len);
 204 #define getcwd mingw_getcwd
 205
 206 char *mingw_getenv(const char *name);
 207 #define getenv mingw_getenv
 208
 209 struct hostent *mingw_gethostbyname(const char *host);
 210 #define gethostbyname mingw_gethostbyname
 211
 212 void mingw_freeaddrinfo(struct addrinfo *res);
 213 #define freeaddrinfo mingw_freeaddrinfo
 214
 215 int mingw_getaddrinfo(const char *node, const char *service,
 216                       const struct addrinfo *hints, struct addrinfo **res);
 217 #define getaddrinfo mingw_getaddrinfo
 218
 219 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 220                       char *host, DWORD hostlen, char *serv, DWORD servlen,
 221                       int flags);
 222 #define getnameinfo mingw_getnameinfo
 223
 224 int mingw_socket(int domain, int type, int protocol);
 225 #define socket mingw_socket
 226
 227 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 228 #define connect mingw_connect
 229
 230 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 231 #define bind mingw_bind
 232
 233 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 234 #define setsockopt mingw_setsockopt
 235
 236 int mingw_listen(int sockfd, int backlog);
 237 #define listen mingw_listen
 238
 239 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 240 #define accept mingw_accept
 241
 242 int mingw_rename(const char*, const char*);
 243 #define rename mingw_rename
 244
 245 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 246 int mingw_getpagesize(void);
 247 #define getpagesize mingw_getpagesize
 248 #endif
 249
 250 /* Use mingw_lstat() instead of lstat()/stat() and
 251  * mingw_fstat() instead of fstat() on Windows.
 252  */
 253 #define off_t off64_t
 254 #define lseek _lseeki64
 255 #ifndef ALREADY_DECLARED_STAT_FUNCS
 256 #define stat _stati64
 257 int mingw_lstat(const char *file_name, struct stat *buf);
 258 int mingw_stat(const char *file_name, struct stat *buf);
 259 int mingw_fstat(int fd, struct stat *buf);
 260 #define fstat mingw_fstat
 261 #define lstat mingw_lstat
 262 #define _stati64(x,y) mingw_stat(x,y)
 263 #endif
 264
 265 int mingw_utime(const char *file_name, const struct utimbuf *times);
 266 #define utime mingw_utime
 267
 268 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 269                      const char *dir,
 270                      int fhin, int fhout, int fherr);
 271 void mingw_execvp(const char *cmd, char *const *argv);
 272 #define execvp mingw_execvp
 273 void mingw_execv(const char *cmd, char *const *argv);
 274 #define execv mingw_execv
 275
 276 static inline unsigned int git_ntohl(unsigned int x)
 277 { return (unsigned int)ntohl(x); }
 278 #define ntohl git_ntohl
 279
 280 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 281 #define signal mingw_signal
 282
 283 /*
 284  * ANSI emulation wrappers
 285  */
 286
 287 int winansi_fputs(const char *str, FILE *stream);
 288 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 289 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 290 #define fputs winansi_fputs
 291 #define printf(...) winansi_printf(__VA_ARGS__)
 292 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 293
 294 /*
 295  * git specific compatibility
 296  */
 297
 298 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 299 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 300 #define PATH_SEP ';'
 301 #define PRIuMAX "I64u"
 302
 303 void mingw_open_html(const char *path);
 304 #define open_html mingw_open_html
 305
 306 /*
 307  * helpers
 308  */
 309
 310 char **make_augmented_environ(const char *const *vars);
 311 void free_environ(char **env);
 312
 313 /*
 314  * A replacement of main() that ensures that argv[0] has a path
 315  * and that default fmode and std(in|out|err) are in binary mode
 316  */
 317
 318 #define main(c,v) dummy_decl_mingw_main(); \
 319 static int mingw_main(); \
 320 int main(int argc, const char **argv) \
 321 { \
 322         extern CRITICAL_SECTION pinfo_cs; \
 323         _fmode = _O_BINARY; \
 324         _setmode(_fileno(stdin), _O_BINARY); \
 325         _setmode(_fileno(stdout), _O_BINARY); \
 326         _setmode(_fileno(stderr), _O_BINARY); \
 327         argv[0] = xstrdup(_pgmptr); \
 328         InitializeCriticalSection(&pinfo_cs); \
 329         return mingw_main(argc, argv); \
 330 } \
 331 static int mingw_main(c,v)
 332
 333 #ifndef NO_MINGW_REPLACE_READDIR
 334 /*
 335  * A replacement of readdir, to ensure that it reads the file type at
 336  * the same time. This avoid extra unneeded lstats in git on MinGW
 337  */
 338 #undef DT_UNKNOWN
 339 #undef DT_DIR
 340 #undef DT_REG
 341 #undef DT_LNK
 342 #define DT_UNKNOWN      0
 343 #define DT_DIR          1
 344 #define DT_REG          2
 345 #define DT_LNK          3
 346
 347 struct mingw_dirent
 348 {
 349         long            d_ino;                  /* Always zero. */
 350         union {
 351                 unsigned short  d_reclen;       /* Always zero. */
 352                 unsigned char   d_type;         /* Reimplementation adds this */
 353         };
 354         unsigned short  d_namlen;               /* Length of name in d_name. */
 355         char            d_name[FILENAME_MAX];   /* File name. */
 356 };
 357 #define dirent mingw_dirent
 358 #define readdir(x) mingw_readdir(x)
 359 struct dirent *mingw_readdir(DIR *dir);
 360 #endif // !NO_MINGW_REPLACE_READDIR
 361
 362 /*
 363  * Used by Pthread API implementation for Windows
 364  */
 365 extern int err_win_to_posix(DWORD winerr);