compat/mingw.h

   1 #include <winsock2.h>
   2
   3 /*
   4  * things that are not available in header files
   5  */
   6
   7 typedef int pid_t;
   8 #define hstrerror strerror
   9
  10 #define S_IFLNK    0120000 /* Symbolic link */
  11 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  12 #define S_ISSOCK(x) 0
  13 #define S_IRGRP 0
  14 #define S_IWGRP 0
  15 #define S_IXGRP 0
  16 #define S_ISGID 0
  17 #define S_IROTH 0
  18 #define S_IXOTH 0
  19
  20 #define WIFEXITED(x) ((unsigned)(x) < 259)      /* STILL_ACTIVE */
  21 #define WEXITSTATUS(x) ((x) & 0xff)
  22 #define WIFSIGNALED(x) ((unsigned)(x) > 259)
  23
  24 #define SIGKILL 0
  25 #define SIGCHLD 0
  26 #define SIGPIPE 0
  27 #define SIGALRM 100
  28
  29 #define F_GETFD 1
  30 #define F_SETFD 2
  31 #define FD_CLOEXEC 0x1
  32
  33 struct passwd {
  34         char *pw_name;
  35         char *pw_gecos;
  36         char *pw_dir;
  37 };
  38
  39 struct pollfd {
  40         int fd;           /* file descriptor */
  41         short events;     /* requested events */
  42         short revents;    /* returned events */
  43 };
  44 #define POLLIN 1
  45 #define POLLHUP 2
  46
  47 typedef void (__cdecl *sig_handler_t)(int);
  48 struct sigaction {
  49         sig_handler_t sa_handler;
  50         unsigned sa_flags;
  51 };
  52 #define sigemptyset(x) (void)0
  53 #define SA_RESTART 0
  54
  55 struct itimerval {
  56         struct timeval it_value, it_interval;
  57 };
  58 #define ITIMER_REAL 0
  59
  60 /*
  61  * trivial stubs
  62  */
  63
  64 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  65 { errno = ENOSYS; return -1; }
  66 static inline int symlink(const char *oldpath, const char *newpath)
  67 { errno = ENOSYS; return -1; }
  68 static inline int link(const char *oldpath, const char *newpath)
  69 { errno = ENOSYS; return -1; }
  70 static inline int fchmod(int fildes, mode_t mode)
  71 { errno = ENOSYS; return -1; }
  72 static inline int fork(void)
  73 { errno = ENOSYS; return -1; }
  74 static inline unsigned int alarm(unsigned int seconds)
  75 { return 0; }
  76 static inline int fsync(int fd)
  77 { return 0; }
  78 static inline int getppid(void)
  79 { return 1; }
  80 static inline void sync(void)
  81 {}
  82 static inline int getuid()
  83 { return 1; }
  84 static inline struct passwd *getpwnam(const char *name)
  85 { return NULL; }
  86 static inline int fcntl(int fd, int cmd, long arg)
  87 {
  88         if (cmd == F_GETFD || cmd == F_SETFD)
  89                 return 0;
  90         errno = EINVAL;
  91         return -1;
  92 }
  93
  94 /*
  95  * simple adaptors
  96  */
  97
  98 static inline int mingw_mkdir(const char *path, int mode)
  99 {
 100         return mkdir(path);
 101 }
 102 #define mkdir mingw_mkdir
 103
 104 static inline int mingw_unlink(const char *pathname)
 105 {
 106         /* read-only files cannot be removed */
 107         chmod(pathname, 0666);
 108         return unlink(pathname);
 109 }
 110 #define unlink mingw_unlink
 111
 112 static inline int waitpid(pid_t pid, unsigned *status, unsigned options)
 113 {
 114         if (options == 0)
 115                 return _cwait(status, pid, 0);
 116         errno = EINVAL;
 117         return -1;
 118 }
 119
 120 /*
 121  * implementations of missing functions
 122  */
 123
 124 int pipe(int filedes[2]);
 125 unsigned int sleep (unsigned int seconds);
 126 int mkstemp(char *template);
 127 int gettimeofday(struct timeval *tv, void *tz);
 128 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 129 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 130 struct tm *localtime_r(const time_t *timep, struct tm *result);
 131 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 132 struct passwd *getpwuid(int uid);
 133 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 134 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 135
 136 /*
 137  * replacements of existing functions
 138  */
 139
 140 int mingw_open (const char *filename, int oflags, ...);
 141 #define open mingw_open
 142
 143 char *mingw_getcwd(char *pointer, int len);
 144 #define getcwd mingw_getcwd
 145
 146 struct hostent *mingw_gethostbyname(const char *host);
 147 #define gethostbyname mingw_gethostbyname
 148
 149 int mingw_socket(int domain, int type, int protocol);
 150 #define socket mingw_socket
 151
 152 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 153 #define connect mingw_connect
 154
 155 int mingw_rename(const char*, const char*);
 156 #define rename mingw_rename
 157
 158 /* Use mingw_lstat() instead of lstat()/stat() and
 159  * mingw_fstat() instead of fstat() on Windows.
 160  * struct stat is redefined because it lacks the st_blocks member.
 161  */
 162 struct mingw_stat {
 163         unsigned st_mode;
 164         time_t st_mtime, st_atime, st_ctime;
 165         unsigned st_dev, st_ino, st_uid, st_gid;
 166         size_t st_size;
 167         size_t st_blocks;
 168 };
 169 int mingw_lstat(const char *file_name, struct mingw_stat *buf);
 170 int mingw_fstat(int fd, struct mingw_stat *buf);
 171 #define fstat mingw_fstat
 172 #define lstat mingw_lstat
 173 #define stat mingw_stat
 174 static inline int mingw_stat(const char *file_name, struct mingw_stat *buf)
 175 { return mingw_lstat(file_name, buf); }
 176
 177 int mingw_utime(const char *file_name, const struct utimbuf *times);
 178 #define utime mingw_utime
 179
 180 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 181 void mingw_execvp(const char *cmd, char *const *argv);
 182 #define execvp mingw_execvp
 183
 184 static inline unsigned int git_ntohl(unsigned int x)
 185 { return (unsigned int)ntohl(x); }
 186 #define ntohl git_ntohl
 187
 188 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 189 #define signal mingw_signal
 190
 191 /*
 192  * git specific compatibility
 193  */
 194
 195 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 196 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 197 #define PATH_SEP ';'
 198 #define PRIuMAX "I64u"
 199
 200 /*
 201  * helpers
 202  */
 203
 204 char **copy_environ(void);
 205 void free_environ(char **env);
 206 char **env_setenv(char **env, const char *name);