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 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
  57 struct passwd {
  58         char *pw_name;
  59         char *pw_gecos;
  60         char *pw_dir;
  61 };
  62
  63 extern char *getpass(const char *prompt);
  64
  65 typedef void (__cdecl *sig_handler_t)(int);
  66 struct sigaction {
  67         sig_handler_t sa_handler;
  68         unsigned sa_flags;
  69 };
  70 #define sigemptyset(x) (void)0
  71 #define SA_RESTART 0
  72
  73 struct 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
  88 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  89 { errno = ENOSYS; return -1; }
  90 static inline int symlink(const char *oldpath, const char *newpath)
  91 { errno = ENOSYS; return -1; }
  92 static inline int fchmod(int fildes, mode_t mode)
  93 { errno = ENOSYS; return -1; }
  94 static inline unsigned int alarm(unsigned int seconds)
  95 { return 0; }
  96 static inline int fsync(int fd)
  97 { return _commit(fd); }
  98 static inline pid_t getppid(void)
  99 { return 1; }
 100 static inline void sync(void)
 101 {}
 102 static inline uid_t getuid(void)
 103 { return 1; }
 104 static inline struct passwd *getpwnam(const char *name)
 105 { return NULL; }
 106 static inline int fcntl(int fd, int cmd, ...)
 107 {
 108         if (cmd == F_GETFD || cmd == F_SETFD)
 109                 return 0;
 110         errno = EINVAL;
 111         return -1;
 112 }
 113 /* bash cannot reliably detect negative return codes as failure */
 114 #define exit(code) exit((code) & 0xff)
 115
 116 /*
 117  * simple adaptors
 118  */
 119
 120 static inline int mingw_mkdir(const char *path, int mode)
 121 {
 122         return mkdir(path);
 123 }
 124 #define mkdir mingw_mkdir
 125
 126 #define WNOHANG 1
 127 pid_t waitpid(pid_t pid, int *status, unsigned options);
 128
 129 #define kill mingw_kill
 130 int mingw_kill(pid_t pid, int sig);
 131
 132 #ifndef NO_OPENSSL
 133 #include <openssl/ssl.h>
 134 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 135 {
 136         return SSL_set_fd(ssl, _get_osfhandle(fd));
 137 }
 138 #define SSL_set_fd mingw_SSL_set_fd
 139
 140 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 141 {
 142         return SSL_set_rfd(ssl, _get_osfhandle(fd));
 143 }
 144 #define SSL_set_rfd mingw_SSL_set_rfd
 145
 146 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 147 {
 148         return SSL_set_wfd(ssl, _get_osfhandle(fd));
 149 }
 150 #define SSL_set_wfd mingw_SSL_set_wfd
 151 #endif
 152
 153 /*
 154  * implementations of missing functions
 155  */
 156
 157 int pipe(int filedes[2]);
 158 unsigned int sleep (unsigned int seconds);
 159 int mkstemp(char *template);
 160 int gettimeofday(struct timeval *tv, void *tz);
 161 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 162 struct tm *localtime_r(const time_t *timep, struct tm *result);
 163 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 164 struct passwd *getpwuid(uid_t uid);
 165 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 166 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 167 int link(const char *oldpath, const char *newpath);
 168
 169 /*
 170  * replacements of existing functions
 171  */
 172
 173 int mingw_unlink(const char *pathname);
 174 #define unlink mingw_unlink
 175
 176 int mingw_rmdir(const char *path);
 177 #define rmdir mingw_rmdir
 178
 179 int mingw_open (const char *filename, int oflags, ...);
 180 #define open mingw_open
 181
 182 ssize_t mingw_write(int fd, const void *buf, size_t count);
 183 #define write mingw_write
 184
 185 FILE *mingw_fopen (const char *filename, const char *otype);
 186 #define fopen mingw_fopen
 187
 188 FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 189 #define freopen mingw_freopen
 190
 191 char *mingw_getcwd(char *pointer, int len);
 192 #define getcwd mingw_getcwd
 193
 194 char *mingw_getenv(const char *name);
 195 #define getenv mingw_getenv
 196
 197 int mingw_gethostname(char *host, int namelen);
 198 #define gethostname mingw_gethostname
 199
 200 struct hostent *mingw_gethostbyname(const char *host);
 201 #define gethostbyname mingw_gethostbyname
 202
 203 void mingw_freeaddrinfo(struct addrinfo *res);
 204 #define freeaddrinfo mingw_freeaddrinfo
 205
 206 int mingw_getaddrinfo(const char *node, const char *service,
 207                       const struct addrinfo *hints, struct addrinfo **res);
 208 #define getaddrinfo mingw_getaddrinfo
 209
 210 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 211                       char *host, DWORD hostlen, char *serv, DWORD servlen,
 212                       int flags);
 213 #define getnameinfo mingw_getnameinfo
 214
 215 int mingw_socket(int domain, int type, int protocol);
 216 #define socket mingw_socket
 217
 218 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 219 #define connect mingw_connect
 220
 221 int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 222 #define bind mingw_bind
 223
 224 int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 225 #define setsockopt mingw_setsockopt
 226
 227 int mingw_shutdown(int sockfd, int how);
 228 #define shutdown mingw_shutdown
 229
 230 int mingw_listen(int sockfd, int backlog);
 231 #define listen mingw_listen
 232
 233 int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 234 #define accept mingw_accept
 235
 236 int mingw_rename(const char*, const char*);
 237 #define rename mingw_rename
 238
 239 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 240 int mingw_getpagesize(void);
 241 #define getpagesize mingw_getpagesize
 242 #endif
 243
 244 struct rlimit {
 245         unsigned int rlim_cur;
 246 };
 247 #define RLIMIT_NOFILE 0
 248
 249 static inline int getrlimit(int resource, struct rlimit *rlp)
 250 {
 251         if (resource != RLIMIT_NOFILE) {
 252                 errno = EINVAL;
 253                 return -1;
 254         }
 255
 256         rlp->rlim_cur = 2048;
 257         return 0;
 258 }
 259
 260 /* Use mingw_lstat() instead of lstat()/stat() and
 261  * mingw_fstat() instead of fstat() on Windows.
 262  */
 263 #define off_t off64_t
 264 #define lseek _lseeki64
 265 #ifndef ALREADY_DECLARED_STAT_FUNCS
 266 #define stat _stati64
 267 int mingw_lstat(const char *file_name, struct stat *buf);
 268 int mingw_stat(const char *file_name, struct stat *buf);
 269 int mingw_fstat(int fd, struct stat *buf);
 270 #define fstat mingw_fstat
 271 #define lstat mingw_lstat
 272 #define _stati64(x,y) mingw_stat(x,y)
 273 #endif
 274
 275 int mingw_utime(const char *file_name, const struct utimbuf *times);
 276 #define utime mingw_utime
 277
 278 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 279                      const char *dir,
 280                      int fhin, int fhout, int fherr);
 281 void mingw_execvp(const char *cmd, char *const *argv);
 282 #define execvp mingw_execvp
 283 void mingw_execv(const char *cmd, char *const *argv);
 284 #define execv mingw_execv
 285
 286 static inline unsigned int git_ntohl(unsigned int x)
 287 { return (unsigned int)ntohl(x); }
 288 #define ntohl git_ntohl
 289
 290 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 291 #define signal mingw_signal
 292
 293 /*
 294  * ANSI emulation wrappers
 295  */
 296
 297 int winansi_fputs(const char *str, FILE *stream);
 298 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 299 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 300 #define fputs winansi_fputs
 301 #define printf(...) winansi_printf(__VA_ARGS__)
 302 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 303
 304 /*
 305  * git specific compatibility
 306  */
 307
 308 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 309 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 310 static inline char *mingw_find_last_dir_sep(const char *path)
 311 {
 312         char *ret = NULL;
 313         for (; *path; ++path)
 314                 if (is_dir_sep(*path))
 315                         ret = (char *)path;
 316         return ret;
 317 }
 318 #define find_last_dir_sep mingw_find_last_dir_sep
 319 #define PATH_SEP ';'
 320 #define PRIuMAX "I64u"
 321
 322 void mingw_open_html(const char *path);
 323 #define open_html mingw_open_html
 324
 325 /*
 326  * helpers
 327  */
 328
 329 char **make_augmented_environ(const char *const *vars);
 330 void free_environ(char **env);
 331
 332 /*
 333  * A replacement of main() that ensures that argv[0] has a path
 334  * and that default fmode and std(in|out|err) are in binary mode
 335  */
 336
 337 #define main(c,v) dummy_decl_mingw_main(); \
 338 static int mingw_main(); \
 339 int main(int argc, const char **argv) \
 340 { \
 341         extern CRITICAL_SECTION pinfo_cs; \
 342         _fmode = _O_BINARY; \
 343         _setmode(_fileno(stdin), _O_BINARY); \
 344         _setmode(_fileno(stdout), _O_BINARY); \
 345         _setmode(_fileno(stderr), _O_BINARY); \
 346         argv[0] = xstrdup(_pgmptr); \
 347         InitializeCriticalSection(&pinfo_cs); \
 348         return mingw_main(argc, argv); \
 349 } \
 350 static int mingw_main(c,v)
 351
 352 /*
 353  * Used by Pthread API implementation for Windows
 354  */
 355 extern int err_win_to_posix(DWORD winerr);