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