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 SIGHUP 1
  25 #define SIGQUIT 3
  26 #define SIGKILL 9
  27 #define SIGPIPE 13
  28 #define SIGALRM 14
  29 #define SIGCHLD 17
  30
  31 #define F_GETFD 1
  32 #define F_SETFD 2
  33 #define FD_CLOEXEC 0x1
  34
  35 struct passwd {
  36         char *pw_name;
  37         char *pw_gecos;
  38         char *pw_dir;
  39 };
  40
  41 struct pollfd {
  42         int fd;           /* file descriptor */
  43         short events;     /* requested events */
  44         short revents;    /* returned events */
  45 };
  46 #define POLLIN 1
  47 #define POLLHUP 2
  48
  49 typedef void (__cdecl *sig_handler_t)(int);
  50 struct sigaction {
  51         sig_handler_t sa_handler;
  52         unsigned sa_flags;
  53 };
  54 #define sigemptyset(x) (void)0
  55 #define SA_RESTART 0
  56
  57 struct itimerval {
  58         struct timeval it_value, it_interval;
  59 };
  60 #define ITIMER_REAL 0
  61
  62 /*
  63  * trivial stubs
  64  */
  65
  66 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  67 { errno = ENOSYS; return -1; }
  68 static inline int symlink(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 int link(const char *oldpath, const char *newpath);
 136
 137 /*
 138  * replacements of existing functions
 139  */
 140
 141 int mingw_open (const char *filename, int oflags, ...);
 142 #define open mingw_open
 143
 144 char *mingw_getcwd(char *pointer, int len);
 145 #define getcwd mingw_getcwd
 146
 147 char *mingw_getenv(const char *name);
 148 #define getenv mingw_getenv
 149
 150 struct hostent *mingw_gethostbyname(const char *host);
 151 #define gethostbyname mingw_gethostbyname
 152
 153 int mingw_socket(int domain, int type, int protocol);
 154 #define socket mingw_socket
 155
 156 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 157 #define connect mingw_connect
 158
 159 int mingw_rename(const char*, const char*);
 160 #define rename mingw_rename
 161
 162 #ifdef USE_WIN32_MMAP
 163 int mingw_getpagesize(void);
 164 #define getpagesize mingw_getpagesize
 165 #endif
 166
 167 /* Use mingw_lstat() instead of lstat()/stat() and
 168  * mingw_fstat() instead of fstat() on Windows.
 169  */
 170 #define off_t off64_t
 171 #define stat _stati64
 172 #define lseek _lseeki64
 173 int mingw_lstat(const char *file_name, struct stat *buf);
 174 int mingw_fstat(int fd, struct stat *buf);
 175 #define fstat mingw_fstat
 176 #define lstat mingw_lstat
 177 #define _stati64(x,y) mingw_lstat(x,y)
 178
 179 int mingw_utime(const char *file_name, const struct utimbuf *times);
 180 #define utime mingw_utime
 181
 182 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 183 void mingw_execvp(const char *cmd, char *const *argv);
 184 #define execvp mingw_execvp
 185
 186 static inline unsigned int git_ntohl(unsigned int x)
 187 { return (unsigned int)ntohl(x); }
 188 #define ntohl git_ntohl
 189
 190 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 191 #define signal mingw_signal
 192
 193 /*
 194  * ANSI emulation wrappers
 195  */
 196
 197 int winansi_fputs(const char *str, FILE *stream);
 198 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 199 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 200 #define fputs winansi_fputs
 201 #define printf(...) winansi_printf(__VA_ARGS__)
 202 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 203
 204 /*
 205  * git specific compatibility
 206  */
 207
 208 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 209 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 210 #define PATH_SEP ';'
 211 #define PRIuMAX "I64u"
 212
 213 void mingw_open_html(const char *path);
 214 #define open_html mingw_open_html
 215
 216 /*
 217  * helpers
 218  */
 219
 220 char **copy_environ(void);
 221 void free_environ(char **env);
 222 char **env_setenv(char **env, const char *name);
 223
 224 /*
 225  * A replacement of main() that ensures that argv[0] has a path
 226  */
 227
 228 #define main(c,v) dummy_decl_mingw_main(); \
 229 static int mingw_main(); \
 230 int main(int argc, const char **argv) \
 231 { \
 232         argv[0] = xstrdup(_pgmptr); \
 233         return mingw_main(argc, argv); \
 234 } \
 235 static int mingw_main(c,v)