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
  16 #ifndef _STAT_H_
  17 #define S_IRUSR 0
  18 #define S_IWUSR 0
  19 #define S_IXUSR 0
  20 #define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
  21 #endif
  22 #define S_IRGRP 0
  23 #define S_IWGRP 0
  24 #define S_IXGRP 0
  25 #define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  26 #define S_IROTH 0
  27 #define S_IWOTH 0
  28 #define S_IXOTH 0
  29 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  30 #define S_ISUID 0
  31 #define S_ISGID 0
  32 #define S_ISVTX 0
  33
  34 #define WIFEXITED(x) 1
  35 #define WIFSIGNALED(x) 0
  36 #define WEXITSTATUS(x) ((x) & 0xff)
  37 #define WTERMSIG(x) SIGTERM
  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 struct passwd {
  51         char *pw_name;
  52         char *pw_gecos;
  53         char *pw_dir;
  54 };
  55
  56 extern char *getpass(const char *prompt);
  57
  58 #ifndef POLLIN
  59 struct pollfd {
  60         int fd;           /* file descriptor */
  61         short events;     /* requested events */
  62         short revents;    /* returned events */
  63 };
  64 #define POLLIN 1
  65 #define POLLHUP 2
  66 #endif
  67
  68 typedef void (__cdecl *sig_handler_t)(int);
  69 struct sigaction {
  70         sig_handler_t sa_handler;
  71         unsigned sa_flags;
  72 };
  73 #define sigemptyset(x) (void)0
  74 #define SA_RESTART 0
  75
  76 struct itimerval {
  77         struct timeval it_value, it_interval;
  78 };
  79 #define ITIMER_REAL 0
  80
  81 /*
  82  * trivial stubs
  83  */
  84
  85 static inline int fchmod(int fildes, mode_t mode)
  86 { errno = ENOSYS; return -1; }
  87 static inline pid_t fork(void)
  88 { errno = ENOSYS; return -1; }
  89 static inline unsigned int alarm(unsigned int seconds)
  90 { return 0; }
  91 static inline int fsync(int fd)
  92 { return 0; }
  93 static inline pid_t getppid(void)
  94 { return 1; }
  95 static inline void sync(void)
  96 {}
  97 static inline uid_t getuid(void)
  98 { return 1; }
  99 static inline struct passwd *getpwnam(const char *name)
 100 { return NULL; }
 101 static inline int fcntl(int fd, int cmd, long arg)
 102 {
 103         if (cmd == F_GETFD || cmd == F_SETFD)
 104                 return 0;
 105         errno = EINVAL;
 106         return -1;
 107 }
 108 /* bash cannot reliably detect negative return codes as failure */
 109 #define exit(code) exit((code) & 0xff)
 110
 111 /*
 112  * simple adaptors
 113  */
 114
 115 static inline pid_t waitpid(pid_t pid, int *status, unsigned options)
 116 {
 117         if (options == 0)
 118                 return _cwait(status, pid, 0);
 119         errno = EINVAL;
 120         return -1;
 121 }
 122
 123 #ifndef NO_OPENSSL
 124 #include <openssl/ssl.h>
 125 static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 126 {
 127         return SSL_set_fd(ssl, _get_osfhandle(fd));
 128 }
 129 #define SSL_set_fd mingw_SSL_set_fd
 130
 131 static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 132 {
 133         return SSL_set_rfd(ssl, _get_osfhandle(fd));
 134 }
 135 #define SSL_set_rfd mingw_SSL_set_rfd
 136
 137 static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 138 {
 139         return SSL_set_wfd(ssl, _get_osfhandle(fd));
 140 }
 141 #define SSL_set_wfd mingw_SSL_set_wfd
 142 #endif
 143
 144 /*
 145  * implementations of missing functions
 146  */
 147
 148 int pipe(int filedes[2]);
 149 unsigned int sleep (unsigned int seconds);
 150 int mkstemp(char *template);
 151 int gettimeofday(struct timeval *tv, void *tz);
 152 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 153 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 154 struct tm *localtime_r(const time_t *timep, struct tm *result);
 155 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 156 struct passwd *getpwuid(uid_t uid);
 157 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 158 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 159 int link(const char *oldpath, const char *newpath);
 160 int symlink(const char *oldpath, const char *newpath);
 161 int readlink(const char *path, char *buf, size_t bufsiz);
 162
 163 /*
 164  * replacements of existing functions
 165  */
 166
 167 int mingw_mkdir(const char *path, int mode);
 168 #define mkdir mingw_mkdir
 169
 170 int mingw_unlink(const char *pathname);
 171 #define unlink mingw_unlink
 172
 173 int mingw_rmdir(const char *path);
 174 #define rmdir mingw_rmdir
 175
 176 int mingw_open (const char *filename, int oflags, ...);
 177 #define open mingw_open
 178
 179 FILE *mingw_fopen (const char *filename, const char *mode);
 180 #define fopen mingw_fopen
 181
 182 char *mingw_getcwd(char *pointer, int len);
 183 #define getcwd mingw_getcwd
 184
 185 char *mingw_getenv(const char *name);
 186 #define getenv mingw_getenv
 187
 188 struct hostent *mingw_gethostbyname(const char *host);
 189 #define gethostbyname mingw_gethostbyname
 190
 191 void mingw_freeaddrinfo(struct addrinfo *res);
 192 #define freeaddrinfo mingw_freeaddrinfo
 193
 194 int mingw_getaddrinfo(const char *node, const char *service,
 195                       const struct addrinfo *hints, struct addrinfo **res);
 196 #define getaddrinfo mingw_getaddrinfo
 197
 198 int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 199                       char *host, DWORD hostlen, char *serv, DWORD servlen,
 200                       int flags);
 201 #define getnameinfo mingw_getnameinfo
 202
 203 int mingw_socket(int domain, int type, int protocol);
 204 #define socket mingw_socket
 205
 206 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 207 #define connect mingw_connect
 208
 209 int mingw_rename(const char*, const char*);
 210 #define rename mingw_rename
 211
 212 #if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 213 int mingw_getpagesize(void);
 214 #define getpagesize mingw_getpagesize
 215 #endif
 216
 217 /* Use mingw_lstat() instead of lstat()/stat() and
 218  * mingw_fstat() instead of fstat() on Windows.
 219  */
 220 #define off_t off64_t
 221 #define lseek _lseeki64
 222 #ifndef ALREADY_DECLARED_STAT_FUNCS
 223 #define stat _stati64
 224 int mingw_lstat(const char *file_name, struct stat *buf);
 225 int mingw_fstat(int fd, struct stat *buf);
 226 #define fstat mingw_fstat
 227 #define lstat mingw_lstat
 228 #define _stati64(x,y) mingw_lstat(x,y)
 229 #endif
 230
 231 int mingw_utime(const char *file_name, const struct utimbuf *times);
 232 #define utime mingw_utime
 233
 234 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 235                      int fhin, int fhout, int fherr);
 236 void mingw_execvp(const char *cmd, char *const *argv);
 237 #define execvp mingw_execvp
 238
 239 static inline unsigned int git_ntohl(unsigned int x)
 240 { return (unsigned int)ntohl(x); }
 241 #define ntohl git_ntohl
 242
 243 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 244 #define signal mingw_signal
 245
 246 /*
 247  * ANSI emulation wrappers
 248  */
 249
 250 int winansi_fputs(const char *str, FILE *stream);
 251 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 252 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 253 #define fputs winansi_fputs
 254 #define printf(...) winansi_printf(__VA_ARGS__)
 255 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 256
 257 /*
 258  * git specific compatibility
 259  */
 260
 261 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 262 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 263 #define PATH_SEP ';'
 264 #define PRIuMAX "I64u"
 265
 266 void mingw_open_html(const char *path);
 267 #define open_html mingw_open_html
 268
 269 void mingw_mark_as_git_dir(const char *dir);
 270 #define mark_as_git_dir mingw_mark_as_git_dir
 271
 272 /*
 273  * helpers
 274  */
 275
 276 char **make_augmented_environ(const char *const *vars);
 277 void free_environ(char **env);
 278
 279 /*
 280  * A replacement of main() that ensures that argv[0] has a path
 281  * and that default fmode and std(in|out|err) are in binary mode
 282  */
 283
 284 #define main(c,v) dummy_decl_mingw_main(); \
 285 static int mingw_main(); \
 286 int main(int argc, const char **argv) \
 287 { \
 288         _fmode = _O_BINARY; \
 289         _setmode(_fileno(stdin), _O_BINARY); \
 290         _setmode(_fileno(stdout), _O_BINARY); \
 291         _setmode(_fileno(stderr), _O_BINARY); \
 292         argv[0] = xstrdup(_pgmptr); \
 293         return mingw_main(argc, argv); \
 294 } \
 295 static int mingw_main(c,v)
 296
 297 #ifndef NO_MINGW_REPLACE_READDIR
 298 /*
 299  * A replacement of readdir, to ensure that it reads the file type at
 300  * the same time. This avoid extra unneeded lstats in git on MinGW
 301  */
 302 #undef DT_UNKNOWN
 303 #undef DT_DIR
 304 #undef DT_REG
 305 #undef DT_LNK
 306 #define DT_UNKNOWN      0
 307 #define DT_DIR          1
 308 #define DT_REG          2
 309 #define DT_LNK          3
 310
 311 struct mingw_dirent
 312 {
 313         long            d_ino;                  /* Always zero. */
 314         union {
 315                 unsigned short  d_reclen;       /* Always zero. */
 316                 unsigned char   d_type;         /* Reimplementation adds this */
 317         };
 318         unsigned short  d_namlen;               /* Length of name in d_name. */
 319         char            d_name[FILENAME_MAX];   /* File name. */
 320 };
 321 #define dirent mingw_dirent
 322 #define readdir(x) mingw_readdir(x)
 323 struct dirent *mingw_readdir(DIR *dir);
 324 #endif // !NO_MINGW_REPLACE_READDIR
 325
 326 /*
 327  * Used by Pthread API implementation for Windows
 328  */
 329 extern int err_win_to_posix(DWORD winerr);