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 #ifdef __GNUC__
  42 /* in MSVC, it's defined in winsock2.h */
  43 struct pollfd {
  44         int fd;           /* file descriptor */
  45         short events;     /* requested events */
  46         short revents;    /* returned events */
  47 };
  48 #define POLLIN 1
  49 #define POLLHUP 2
  50 #endif /* __GNUC__ */
  51
  52 typedef void (__cdecl *sig_handler_t)(int);
  53 struct sigaction {
  54         sig_handler_t sa_handler;
  55         unsigned sa_flags;
  56 };
  57 #define sigemptyset(x) (void)0
  58 #define SA_RESTART 0
  59
  60 struct itimerval {
  61         struct timeval it_value, it_interval;
  62 };
  63 #define ITIMER_REAL 0
  64
  65 /*
  66  * trivial stubs
  67  */
  68
  69 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  70 { errno = ENOSYS; return -1; }
  71 static inline int symlink(const char *oldpath, const char *newpath)
  72 { errno = ENOSYS; return -1; }
  73 static inline int link(const char *oldpath, const char *newpath)
  74 { errno = ENOSYS; return -1; }
  75 static inline int fchmod(int fildes, mode_t mode)
  76 { errno = ENOSYS; return -1; }
  77 static inline int fork(void)
  78 { errno = ENOSYS; return -1; }
  79 static inline unsigned int alarm(unsigned int seconds)
  80 { return 0; }
  81 static inline int fsync(int fd)
  82 { return 0; }
  83 static inline int getppid(void)
  84 { return 1; }
  85 static inline void sync(void)
  86 {}
  87 static inline int getuid()
  88 { return 1; }
  89 static inline struct passwd *getpwnam(const char *name)
  90 { return NULL; }
  91 static inline int fcntl(int fd, int cmd, long arg)
  92 {
  93         if (cmd == F_GETFD || cmd == F_SETFD)
  94                 return 0;
  95         errno = EINVAL;
  96         return -1;
  97 }
  98
  99 /*
 100  * simple adaptors
 101  */
 102
 103 static inline int mingw_mkdir(const char *path, int mode)
 104 {
 105         return mkdir(path);
 106 }
 107 #define mkdir mingw_mkdir
 108
 109 static inline int mingw_unlink(const char *pathname)
 110 {
 111         /* read-only files cannot be removed */
 112         chmod(pathname, 0666);
 113         return unlink(pathname);
 114 }
 115 #define unlink mingw_unlink
 116
 117 static inline int waitpid(pid_t pid, unsigned *status, unsigned options)
 118 {
 119         if (options == 0)
 120                 return _cwait(status, pid, 0);
 121         errno = EINVAL;
 122         return -1;
 123 }
 124
 125 /*
 126  * implementations of missing functions
 127  */
 128
 129 int pipe(int filedes[2]);
 130 unsigned int sleep (unsigned int seconds);
 131 int mkstemp(char *template);
 132 int gettimeofday(struct timeval *tv, void *tz);
 133 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 134 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 135 struct tm *localtime_r(const time_t *timep, struct tm *result);
 136 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 137 struct passwd *getpwuid(int uid);
 138 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 139 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 140
 141 /*
 142  * replacements of existing functions
 143  */
 144
 145 int mingw_open (const char *filename, int oflags, ...);
 146 #define open mingw_open
 147
 148 char *mingw_getcwd(char *pointer, int len);
 149 #define getcwd mingw_getcwd
 150
 151 char *mingw_getenv(const char *name);
 152 #define getenv mingw_getenv
 153
 154 struct hostent *mingw_gethostbyname(const char *host);
 155 #define gethostbyname mingw_gethostbyname
 156
 157 int mingw_socket(int domain, int type, int protocol);
 158 #define socket mingw_socket
 159
 160 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 161 #define connect mingw_connect
 162
 163 int mingw_rename(const char*, const char*);
 164 #define rename mingw_rename
 165
 166 /* Use mingw_lstat() instead of lstat()/stat() and
 167  * mingw_fstat() instead of fstat() on Windows.
 168  * struct stat is redefined because it lacks the st_blocks member.
 169  */
 170 struct mingw_stat {
 171         unsigned st_mode;
 172         time_t st_mtime, st_atime, st_ctime;
 173         unsigned st_dev, st_ino, st_uid, st_gid;
 174         size_t st_size;
 175         size_t st_blocks;
 176 };
 177 int mingw_lstat(const char *file_name, struct mingw_stat *buf);
 178 int mingw_fstat(int fd, struct mingw_stat *buf);
 179 #define fstat mingw_fstat
 180 #define lstat mingw_lstat
 181 #define stat mingw_stat
 182 static inline int mingw_stat(const char *file_name, struct mingw_stat *buf)
 183 { return mingw_lstat(file_name, buf); }
 184
 185 int mingw_utime(const char *file_name, const struct utimbuf *times);
 186 #define utime mingw_utime
 187
 188 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 189 pid_t mingw_spawnvpe_cwd(const char *cmd, const char **argv, char **env,
 190                          const char *working_directory);
 191 void mingw_execvp(const char *cmd, char *const *argv);
 192 #define execvp mingw_execvp
 193
 194 static inline unsigned int git_ntohl(unsigned int x)
 195 { return (unsigned int)ntohl(x); }
 196 #define ntohl git_ntohl
 197
 198 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 199 #define signal mingw_signal
 200
 201 /*
 202  * ANSI emulation wrappers
 203  */
 204 #ifndef _MSC_VER
 205 /* Until va_copy available is MSVC */
 206 int winansi_fputs(const char *str, FILE *stream);
 207 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 208 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 209 #define fputs winansi_fputs
 210 #define printf(...) winansi_printf(__VA_ARGS__)
 211 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 212 #endif
 213
 214 /*
 215  * git specific compatibility
 216  */
 217
 218 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 219 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 220 #define PATH_SEP ';'
 221 #define PRIuMAX "I64u"
 222
 223 void mingw_open_html(const char *path);
 224 #define open_html mingw_open_html
 225
 226 /*
 227  * helpers
 228  */
 229
 230 char **copy_environ(void);
 231 void free_environ(char **env);
 232 char **env_setenv(char **env, const char *name);
 233
 234 /*
 235  * A replacement of main() that ensures that argv[0] has a path
 236  */
 237
 238 #define main(c,v) dummy_decl_mingw_main(); \
 239 static int mingw_main(); \
 240 int main(int argc, const char **argv) \
 241 { \
 242         argv[0] = xstrdup(_pgmptr); \
 243         return mingw_main(argc, argv); \
 244 } \
 245 static int mingw_main(c,v)