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 SIGHUP 0
  28 #define SIGQUIT 0
  29 #define SIGALRM 100
  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 link(const char *oldpath, const char *newpath)
  71 { errno = ENOSYS; return -1; }
  72 static inline int fchmod(int fildes, mode_t mode)
  73 { errno = ENOSYS; return -1; }
  74 static inline int fork(void)
  75 { errno = ENOSYS; return -1; }
  76 static inline unsigned int alarm(unsigned int seconds)
  77 { return 0; }
  78 static inline int fsync(int fd)
  79 { return 0; }
  80 static inline int getppid(void)
  81 { return 1; }
  82 static inline void sync(void)
  83 {}
  84 static inline int getuid()
  85 { return 1; }
  86 static inline struct passwd *getpwnam(const char *name)
  87 { return NULL; }
  88 static inline int fcntl(int fd, int cmd, long arg)
  89 {
  90         if (cmd == F_GETFD || cmd == F_SETFD)
  91                 return 0;
  92         errno = EINVAL;
  93         return -1;
  94 }
  95
  96 /*
  97  * simple adaptors
  98  */
  99
 100 static inline int mingw_mkdir(const char *path, int mode)
 101 {
 102         return mkdir(path);
 103 }
 104 #define mkdir mingw_mkdir
 105
 106 static inline int mingw_unlink(const char *pathname)
 107 {
 108         /* read-only files cannot be removed */
 109         chmod(pathname, 0666);
 110         return unlink(pathname);
 111 }
 112 #define unlink mingw_unlink
 113
 114 static inline int waitpid(pid_t pid, unsigned *status, unsigned options)
 115 {
 116         if (options == 0)
 117                 return _cwait(status, pid, 0);
 118         errno = EINVAL;
 119         return -1;
 120 }
 121
 122 /*
 123  * implementations of missing functions
 124  */
 125
 126 int pipe(int filedes[2]);
 127 unsigned int sleep (unsigned int seconds);
 128 int mkstemp(char *template);
 129 int gettimeofday(struct timeval *tv, void *tz);
 130 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 131 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 132 struct tm *localtime_r(const time_t *timep, struct tm *result);
 133 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 134 struct passwd *getpwuid(int uid);
 135 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 136 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 137
 138 /*
 139  * replacements of existing functions
 140  */
 141
 142 int mingw_open (const char *filename, int oflags, ...);
 143 #define open mingw_open
 144
 145 char *mingw_getcwd(char *pointer, int len);
 146 #define getcwd mingw_getcwd
 147
 148 char *mingw_getenv(const char *name);
 149 #define getenv mingw_getenv
 150
 151 struct hostent *mingw_gethostbyname(const char *host);
 152 #define gethostbyname mingw_gethostbyname
 153
 154 int mingw_socket(int domain, int type, int protocol);
 155 #define socket mingw_socket
 156
 157 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 158 #define connect mingw_connect
 159
 160 int mingw_rename(const char*, const char*);
 161 #define rename mingw_rename
 162
 163 /* Use mingw_lstat() instead of lstat()/stat() and
 164  * mingw_fstat() instead of fstat() on Windows.
 165  * struct stat is redefined because it lacks the st_blocks member.
 166  */
 167 struct mingw_stat {
 168         unsigned st_mode;
 169         time_t st_mtime, st_atime, st_ctime;
 170         unsigned st_dev, st_ino, st_uid, st_gid;
 171         size_t st_size;
 172         size_t st_blocks;
 173 };
 174 int mingw_lstat(const char *file_name, struct mingw_stat *buf);
 175 int mingw_fstat(int fd, struct mingw_stat *buf);
 176 #define fstat mingw_fstat
 177 #define lstat mingw_lstat
 178 #define stat mingw_stat
 179 static inline int mingw_stat(const char *file_name, struct mingw_stat *buf)
 180 { return mingw_lstat(file_name, buf); }
 181
 182 int mingw_utime(const char *file_name, const struct utimbuf *times);
 183 #define utime mingw_utime
 184
 185 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 186 void mingw_execvp(const char *cmd, char *const *argv);
 187 #define execvp mingw_execvp
 188
 189 static inline unsigned int git_ntohl(unsigned int x)
 190 { return (unsigned int)ntohl(x); }
 191 #define ntohl git_ntohl
 192
 193 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 194 #define signal mingw_signal
 195
 196 /*
 197  * ANSI emulation wrappers
 198  */
 199
 200 int winansi_fputs(const char *str, FILE *stream);
 201 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 202 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 203 #define fputs winansi_fputs
 204 #define printf(...) winansi_printf(__VA_ARGS__)
 205 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 206
 207 /*
 208  * git specific compatibility
 209  */
 210
 211 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 212 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 213 #define PATH_SEP ';'
 214 #define PRIuMAX "I64u"
 215
 216 void mingw_open_html(const char *path);
 217 #define open_html mingw_open_html
 218
 219 /*
 220  * helpers
 221  */
 222
 223 char **copy_environ(void);
 224 void free_environ(char **env);
 225 char **env_setenv(char **env, const char *name);
 226
 227 /*
 228  * A replacement of main() that ensures that argv[0] has a path
 229  */
 230
 231 #define main(c,v) dummy_decl_mingw_main(); \
 232 static int mingw_main(); \
 233 int main(int argc, const char **argv) \
 234 { \
 235         argv[0] = xstrdup(_pgmptr); \
 236         return mingw_main(argc, argv); \
 237 } \
 238 static int mingw_main(c,v)