compat/mingw.h

   1 #include <winsock2.h>
   2
   3 /*
   4  * things that are not available in header files
   5  */
   6
   7 #ifndef _PID_T_
   8 typedef int pid_t;
   9 #endif
  10
  11 #define hstrerror strerror
  12
  13 #define S_IFLNK    0120000 /* Symbolic link */
  14 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  15 #define S_ISSOCK(x) 0
  16 #define S_IRGRP 0
  17 #define S_IWGRP 0
  18 #define S_IXGRP 0
  19 #define S_ISGID 0
  20 #define S_IROTH 0
  21 #define S_IXOTH 0
  22
  23 #define WIFEXITED(x) ((unsigned)(x) < 259)      /* STILL_ACTIVE */
  24 #define WEXITSTATUS(x) ((x) & 0xff)
  25 #define WIFSIGNALED(x) ((unsigned)(x) > 259)
  26
  27 #define SIGKILL 0
  28 #define SIGCHLD 0
  29 #define SIGPIPE 0
  30 #define SIGHUP 0
  31 #define SIGQUIT 0
  32 #define SIGALRM 100
  33
  34 #define F_GETFD 1
  35 #define F_SETFD 2
  36 #define FD_CLOEXEC 0x1
  37
  38 struct passwd {
  39         char *pw_name;
  40         char *pw_gecos;
  41         char *pw_dir;
  42 };
  43
  44 #ifdef __GNUC__
  45 /* in MSVC, it's defined in winsock2.h */
  46 struct pollfd {
  47         int fd;           /* file descriptor */
  48         short events;     /* requested events */
  49         short revents;    /* returned events */
  50 };
  51 #define POLLIN 1
  52 #define POLLHUP 2
  53 #endif /* __GNUC__ */
  54
  55 typedef void (__cdecl *sig_handler_t)(int);
  56 struct sigaction {
  57         sig_handler_t sa_handler;
  58         unsigned sa_flags;
  59 };
  60 #define sigemptyset(x) (void)0
  61 #define SA_RESTART 0
  62
  63 struct itimerval {
  64         struct timeval it_value, it_interval;
  65 };
  66 #define ITIMER_REAL 0
  67
  68 /*
  69  * trivial stubs
  70  */
  71
  72 static inline int readlink(const char *path, char *buf, size_t bufsiz)
  73 { errno = ENOSYS; return -1; }
  74 static inline int symlink(const char *oldpath, const char *newpath)
  75 { errno = ENOSYS; return -1; }
  76 static inline int link(const char *oldpath, const char *newpath)
  77 { errno = ENOSYS; return -1; }
  78 static inline int fchmod(int fildes, mode_t mode)
  79 { errno = ENOSYS; return -1; }
  80 static inline int fork(void)
  81 { errno = ENOSYS; return -1; }
  82 static inline unsigned int alarm(unsigned int seconds)
  83 { return 0; }
  84 static inline int fsync(int fd)
  85 { return 0; }
  86 static inline int getppid(void)
  87 { return 1; }
  88 static inline void sync(void)
  89 {}
  90 static inline int getuid()
  91 { return 1; }
  92 static inline struct passwd *getpwnam(const char *name)
  93 { return NULL; }
  94 static inline int fcntl(int fd, int cmd, long arg)
  95 {
  96         if (cmd == F_GETFD || cmd == F_SETFD)
  97                 return 0;
  98         errno = EINVAL;
  99         return -1;
 100 }
 101
 102 /*
 103  * simple adaptors
 104  */
 105
 106 static inline int mingw_mkdir(const char *path, int mode)
 107 {
 108         return mkdir(path);
 109 }
 110 #define mkdir mingw_mkdir
 111
 112 static inline int mingw_unlink(const char *pathname)
 113 {
 114         /* read-only files cannot be removed */
 115         chmod(pathname, 0666);
 116         return unlink(pathname);
 117 }
 118 #define unlink mingw_unlink
 119
 120 static inline int waitpid(pid_t pid, unsigned *status, unsigned options)
 121 {
 122         if (options == 0)
 123                 return _cwait(status, pid, 0);
 124         errno = EINVAL;
 125         return -1;
 126 }
 127
 128 /*
 129  * implementations of missing functions
 130  */
 131
 132 int pipe(int filedes[2]);
 133 unsigned int sleep (unsigned int seconds);
 134 int mkstemp(char *template);
 135 int gettimeofday(struct timeval *tv, void *tz);
 136 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 137 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 138 struct tm *localtime_r(const time_t *timep, struct tm *result);
 139 int getpagesize(void);  /* defined in MinGW's libgcc.a */
 140 struct passwd *getpwuid(int uid);
 141 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 142 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 143
 144 /*
 145  * replacements of existing functions
 146  */
 147
 148 int mingw_open (const char *filename, int oflags, ...);
 149 #define open mingw_open
 150
 151 char *mingw_getcwd(char *pointer, int len);
 152 #define getcwd mingw_getcwd
 153
 154 char *mingw_getenv(const char *name);
 155 #define getenv mingw_getenv
 156
 157 struct hostent *mingw_gethostbyname(const char *host);
 158 #define gethostbyname mingw_gethostbyname
 159
 160 int mingw_socket(int domain, int type, int protocol);
 161 #define socket mingw_socket
 162
 163 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 164 #define connect mingw_connect
 165
 166 int mingw_rename(const char*, const char*);
 167 #define rename mingw_rename
 168
 169 /* Use mingw_lstat() instead of lstat()/stat() and
 170  * mingw_fstat() instead of fstat() on Windows.
 171  * struct stat is redefined because it lacks the st_blocks member.
 172  */
 173 struct mingw_stat {
 174         unsigned st_mode;
 175         time_t st_mtime, st_atime, st_ctime;
 176         unsigned st_dev, st_ino, st_uid, st_gid;
 177         size_t st_size;
 178         size_t st_blocks;
 179 };
 180 int mingw_lstat(const char *file_name, struct mingw_stat *buf);
 181 int mingw_fstat(int fd, struct mingw_stat *buf);
 182 #define fstat mingw_fstat
 183 #define lstat mingw_lstat
 184 #define stat mingw_stat
 185 static inline int mingw_stat(const char *file_name, struct mingw_stat *buf)
 186 { return mingw_lstat(file_name, buf); }
 187
 188 int mingw_utime(const char *file_name, const struct utimbuf *times);
 189 #define utime mingw_utime
 190
 191 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 192 pid_t mingw_spawnvpe_cwd(const char *cmd, const char **argv, char **env,
 193                          const char *working_directory);
 194 void mingw_execvp(const char *cmd, char *const *argv);
 195 #define execvp mingw_execvp
 196
 197 static inline unsigned int git_ntohl(unsigned int x)
 198 { return (unsigned int)ntohl(x); }
 199 #define ntohl git_ntohl
 200
 201 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 202 #define signal mingw_signal
 203
 204 /*
 205  * ANSI emulation wrappers
 206  */
 207 #ifndef _MSC_VER
 208 /* Until va_copy available is MSVC */
 209 int winansi_fputs(const char *str, FILE *stream);
 210 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 211 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 212 #define fputs winansi_fputs
 213 #define printf(...) winansi_printf(__VA_ARGS__)
 214 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
 215 #endif
 216
 217 /*
 218  * git specific compatibility
 219  */
 220
 221 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 222 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 223 #define PATH_SEP ';'
 224 #define PRIuMAX "I64u"
 225
 226 void mingw_open_html(const char *path);
 227 #define open_html mingw_open_html
 228
 229 /*
 230  * helpers
 231  */
 232
 233 char **copy_environ(void);
 234 void free_environ(char **env);
 235 char **env_setenv(char **env, const char *name);
 236
 237 /*
 238  * A replacement of main() that ensures that argv[0] has a path
 239  */
 240
 241 #define main(c,v) dummy_decl_mingw_main(); \
 242 static int mingw_main(); \
 243 int main(int argc, const char **argv) \
 244 { \
 245         argv[0] = xstrdup(_pgmptr); \
 246         return mingw_main(argc, argv); \
 247 } \
 248 static int mingw_main(c,v)