compat/mingw.h

   1 #define _WIN32_WINNT 0x0501
   2 #include <winsock2.h>
   3 #include <ws2tcpip.h>
   4
   5 /*
   6  * things that are not available in header files
   7  */
   8
   9 typedef int pid_t;
  10 typedef int uid_t;
  11 typedef int socklen_t;
  12 #define hstrerror strerror
  13
  14 #define S_IFLNK    0120000 /* Symbolic link */
  15 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  16 #define S_ISSOCK(x) 0
  17
  18 #define S_IRGRP 0
  19 #define S_IWGRP 0
  20 #define S_IXGRP 0
  21 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  22 #define S_IROTH 0
  23 #define S_IWOTH 0
  24 #define S_IXOTH 0
  25 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  26
  27 #define S_ISUID 0004000
  28 #define S_ISGID 0002000
  29 #define S_ISVTX 0001000
  30
  31 #define WIFEXITED(x) 1
  32 #define WIFSIGNALED(x) 0
  33 #define WEXITSTATUS(x) ((x) & 0xff)
  34 #define WTERMSIG(x) SIGTERM
  35
  36 #define EWOULDBLOCK EAGAIN
  37 #define SHUT_WR SD_SEND
  38
  39 #define SIGHUP 1
  40 #define SIGQUIT 3
  41 #define SIGKILL 9
  42 #define SIGPIPE 13
  43 #define SIGALRM 14
  44 #define SIGCHLD 17
  45
  46 #define F_GETFD 1
  47 #define F_SETFD 2
  48 #define FD_CLOEXEC 0x1
  49
  50 #define EAFNOSUPPORT WSAEAFNOSUPPORT
  51 #define ECONNABORTED WSAECONNABORTED
  52
  53 struct passwd {
  54         char *pw_name;
  55         char *pw_gecos;
  56         char *pw_dir;
  57 };
  58
  59 extern char *getpass(const char *prompt);
  60
  61 typedef void (__cdecl *sig_handler_t)(int);
  62 struct sigaction {
  63         sig_handler_t sa_handler;
  64         unsigned sa_flags;
  65 };
  66 #define sigemptyset(x) (void)0
  67 #define SA_RESTART 0
  68
  69 struct itimerval {
  70         struct timeval it_value, it_interval;
  71 };
  72 #define ITIMER_REAL 0
  73
  74 /*
  75  * sanitize preprocessor namespace polluted by Windows headers defining
  76  * macros which collide with git local versions
  77  */
  78 #undef HELP_COMMAND /* from winuser.h */
  79
  80 /*
  81  * trivial stubs
  82  */
  83
  84 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  85 { errno = ENOSYS; return -1; }
  86 static inline int symlink(const char *oldpath, const char *newpath)
  87 { errno = ENOSYS; return -1; }
  88 static inline int fchmod(int fildes, mode_t mode)
  89 { errno = ENOSYS; return -1; }
  90 static inline pid_t fork(void)
  91 { errno = ENOSYS; return -1; }
  92 static inline unsigned int alarm(unsigned int seconds)
  93 { return 0; }
  94 static inline int fsync(int fd)
  95 { return _commit(fd); }
  96 static inline pid_t getppid(void)
  97 { return 1; }
  98 static inline void sync(void)
  99 {}
 100 static inline uid_t getuid(void)
 101 { return 1; }
 102 static inline struct passwd *getpwnam(const char *name)
 103 { return NULL; }
 104 static inline int fcntl(int fd, int cmd, ...)
 105 {
 106         if (cmd == F_GETFD || cmd == F_SETFD)
 107                 return 0;
 108         errno = EINVAL;
 109         return -1;
 110 }
 111 /* bash cannot reliably detect negative return codes as failure */
 112 #define exit(code) exit((code) & 0xff)
 113
 114 /*
 115  * simple adaptors
 116  */
 117
 118 int mingw_mkdir(const char *path, int mode);
 119 #define mkdir mingw_mkdir
 120
 121 #define WNOHANG 1
 122 pid_t waitpid(pid_t pid, int *status, int options);
 123
 124 #define kill mingw_kill
 125 int mingw_kill(pid_t pid, int sig);
 126
 127 #ifndef NO_OPENSSL
 128 #include <openssl/ssl.h>
 129 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 130 {
 131         return SSL_set_fd(ssl, _get_osfhandle(fd));
 132 }
 133 #define SSL_set_fd mingw_SSL_set_fd
 134
 135 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 136 {
 137         return SSL_set_rfd(ssl, _get_osfhandle(fd));
 138 }
 139 #define SSL_set_rfd mingw_SSL_set_rfd
 140
 141 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 142 {
 143         return SSL_set_wfd(ssl, _get_osfhandle(fd));
 144 }
 145 #define SSL_set_wfd mingw_SSL_set_wfd
 146 #endif
 147
 148 /*
 149  * implementations of missing functions
 150  */
 151
 152 int pipe(int filedes[2]);
 153 unsigned int sleep (unsigned int seconds);
 154 int mkstemp(char *template);
 155 int gettimeofday(struct timeval *tv, void *tz);
 156 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 157 struct tm *localtime_r(const time_t *timep, struct tm *result);
 158 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 159 struct passwd *getpwuid(uid_t uid);
 160 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 161 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 162 int link(const char *oldpath, const char *newpath);
 163
 164 /*
 165  * replacements of existing functions
 166  */
 167
 168 int mingw_unlink(const char *pathname);
 169 #define unlink mingw_unlink
 170
 171 int mingw_rmdir(const char *path);
 172 #define rmdir mingw_rmdir
 173
 174 int mingw_open (const char *filename, int oflags, ...);
 175 #define open mingw_open
 176
 177 ssize_t mingw_write(int fd, const void *buf, size_t count);
 178 #define write mingw_write
 179
 180 FILE *mingw_fopen (const char *filename, const char *otype);
 181 #define fopen mingw_fopen
 182
 183 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 184 #define freopen mingw_freopen
 185
 186 char *mingw_getcwd(char *pointer, int len);
 187 #define getcwd mingw_getcwd
 188
 189 char *mingw_getenv(const char *name);
 190 #define getenv mingw_getenv
 191
 192 int mingw_gethostname(char *host, int namelen);
 193 #define gethostname mingw_gethostname
 194
 195 struct hostent *mingw_gethostbyname(const char *host);
 196 #define gethostbyname mingw_gethostbyname
 197
 198 void mingw_freeaddrinfo(struct addrinfo *res);
 199 #define freeaddrinfo mingw_freeaddrinfo
 200
 201 int mingw_getaddrinfo(const char *node, const char *service,
 202                       const struct addrinfo *hints, struct addrinfo **res);
 203 #define getaddrinfo mingw_getaddrinfo
 204
 205 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 206                       char *host, DWORD hostlen, char *serv, DWORD servlen,
 207                       int flags);
 208 #define getnameinfo mingw_getnameinfo
 209
 210 int mingw_socket(int domain, int type, int protocol);
 211 #define socket mingw_socket
 212
 213 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 214 #define connect mingw_connect
 215
 216 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 217 #define bind mingw_bind
 218
 219 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 220 #define setsockopt mingw_setsockopt
 221
 222 int mingw_shutdown(int sockfd, int how);
 223 #define shutdown mingw_shutdown
 224
 225 int mingw_listen(int sockfd, int backlog);
 226 #define listen mingw_listen
 227
 228 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 229 #define accept mingw_accept
 230
 231 int mingw_rename(const char*, const char*);
 232 #define rename mingw_rename
 233
 234 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 235 int mingw_getpagesize(void);
 236 #define getpagesize mingw_getpagesize
 237 #endif
 238
 239 struct rlimit {
 240         unsigned int rlim_cur;
 241 };
 242 #define RLIMIT_NOFILE 0
 243
 244 static inline int getrlimit(int resource, struct rlimit *rlp)
 245 {
 246         if (resource != RLIMIT_NOFILE) {
 247                 errno = EINVAL;
 248                 return -1;
 249         }
 250
 251         rlp->rlim_cur = 2048;
 252         return 0;
 253 }
 254
 255 /* Use mingw_lstat() instead of lstat()/stat() and
 256  * mingw_fstat() instead of fstat() on Windows.
 257  */
 258 #define off_t off64_t
 259 #define lseek _lseeki64
 260 #ifndef ALREADY_DECLARED_STAT_FUNCS
 261 #define stat _stati64
 262 int mingw_lstat(const char *file_name, struct stat *buf);
 263 int mingw_stat(const char *file_name, struct stat *buf);
 264 int mingw_fstat(int fd, struct stat *buf);
 265 #define fstat mingw_fstat
 266 #define lstat mingw_lstat
 267 #define _stati64(x,y) mingw_stat(x,y)
 268 #endif
 269
 270 int mingw_utime(const char *file_name, const struct utimbuf *times);
 271 #define utime mingw_utime
 272
 273 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 274                      const char *dir,
 275                      int fhin, int fhout, int fherr);
 276 int mingw_execvp(const char *cmd, char *const *argv);
 277 #define execvp mingw_execvp
 278 int mingw_execv(const char *cmd, char *const *argv);
 279 #define execv mingw_execv
 280
 281 static inline unsigned int git_ntohl(unsigned int x)
 282 { return (unsigned int)ntohl(x); }
 283 #define ntohl git_ntohl
 284
 285 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 286 #define signal mingw_signal
 287
 288 /*
 289  * ANSI emulation wrappers
 290  */
 291
 292 int winansi_fputs(const char *str, FILE *stream);
 293 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 294 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 295 int winansi_vfprintf(FILE *stream, const char *format, va_list list);
 296 #define fputs winansi_fputs
 297 #define printf(...) winansi_printf(__VA_ARGS__)
 298 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 299 #define vfprintf winansi_vfprintf
 300
 301 /*
 302  * git specific compatibility
 303  */
 304
 305 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 306 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 307 static inline char *mingw_find_last_dir_sep(const char *path)
 308 {
 309         char *ret = NULL;
 310         for (; *path; ++path)
 311                 if (is_dir_sep(*path))
 312                         ret = (char *)path;
 313         return ret;
 314 }
 315 #define find_last_dir_sep mingw_find_last_dir_sep
 316 int mingw_offset_1st_component(const char *path);
 317 #define offset_1st_component mingw_offset_1st_component
 318 #define PATH_SEP ';'
 319 #define PRIuMAX "I64u"
 320
 321 void mingw_open_html(const char *path);
 322 #define open_html mingw_open_html
 323
 324 void mingw_mark_as_git_dir(const char *dir);
 325 #define mark_as_git_dir mingw_mark_as_git_dir
 326
 327 /*
 328  * helpers
 329  */
 330
 331 char **make_augmented_environ(const char *const *vars);
 332 void free_environ(char **env);
 333
 334 /*
 335  * A replacement of main() that adds win32 specific initialization.
 336  */
 337
 338 void mingw_startup();
 339 #define main(c,v) dummy_decl_mingw_main(); \
 340 static int mingw_main(); \
 341 int main(int argc, const char **argv) \
 342 { \
 343         mingw_startup(); \
 344         return mingw_main(__argc, __argv); \
 345 } \
 346 static int mingw_main(c,v)
 347
 348 /*
 349  * Used by Pthread API implementation for Windows
 350  */
 351 extern int err_win_to_posix(DWORD winerr);
 352
 353 extern const char *get_windows_home_directory();
 354 #define get_home_directory() get_windows_home_directory()