arch/all-unix/filesys/emul_handler/emul_unix.h

   1 /*
   2     Copyright © 1995-2015, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifdef HOST_LONG_ALIGNED
   7 #pragma pack(4)
   8 #endif
   9
  10 #include <sys/stat.h>
  11 #include <sys/time.h>
  12 #include <dirent.h>
  13 #include <poll.h>
  14 #include <pwd.h>
  15 #include <time.h>
  16 #include <utime.h>
  17
  18 #ifdef HOST_OS_linux
  19 #include <sys/vfs.h>
  20 #else
  21 #include <sys/mount.h>
  22 #endif
  23
  24 /* Android is not a true Linux ;-) */
  25 #ifdef HOST_OS_android
  26 #undef HOST_OS_linux
  27 #endif
  28
  29 #pragma pack()
  30
  31 struct LibCInterface
  32 {
  33     int            (*open)(char *path, int oflag, ...);
  34     int            (*close)(int filedes);
  35     int            (*closedir)(DIR *dirp);
  36     DIR           *(*opendir)(char *dirname);
  37     struct dirent *(*readdir)(DIR *dirp);
  38     void           (*rewinddir)(DIR *dirp);
  39     ssize_t        (*read)(int fildes, void *buf, size_t nbyte);
  40     ssize_t        (*write)(int fildes, const void *buf, size_t nbyte);
  41 #ifdef HOST_LONG_ALIGNED
  42     off_t          (*lseek)(int fildes, unsigned long offset_l, unsigned long offset_h, int whence);
  43     int            (*ftruncate)(int fildes, unsigned long length_l, unsigned long length_h);
  44 #else
  45     off_t          (*lseek)(int fildes, off_t offset, int whence);
  46     int            (*ftruncate)(int fildes, off_t length);
  47 #endif
  48     int            (*mkdir)(char *path, mode_t mode);
  49     int            (*rmdir)(const char *path);
  50     int            (*unlink)(const char *path);
  51     int            (*link)(char *path1, char *path2);
  52     int            (*symlink)(char *path1, char *path2);
  53     ssize_t        (*readlink)(char *path, char *buf, size_t bufsize);
  54     int            (*rename)(char *old, char *new);
  55     int            (*chmod)(char *path, mode_t mode);
  56     int            (*isatty)(int fildes);
  57     int            (*statfs)(char *path, struct statfs *buf);
  58     int            (*utime)(char *path, const struct utimbuf *times);
  59     struct tm     *(*localtime)(const time_t *clock);
  60     time_t         (*mktime)(struct tm *timeptr);
  61     char          *(*getcwd)(char *buf, size_t size);
  62     char          *(*getenv)(const char *name);
  63     int            (*poll)(struct pollfd *fds, nfds_t nfds, int timeout);
  64 #ifdef HOST_OS_linux
  65     int            (*__xstat)(int ver, char *path, struct stat *buf);
  66     int            (*__lxstat)(int ver, const char *path, struct stat *buf);
  67     int            (*__fxstat)(int ver, const int fd, struct stat *buf);
  68     #define stat(path, buf)  __xstat(_STAT_VER, path, buf)
  69     #define lstat(path, buf) __lxstat(_STAT_VER, path, buf)
  70     #define fstat(fd, buf) __fxstat(_STAT_VER, fd, buf)
  71 #else
  72     int            (*stat)(char *path, struct stat *buf);
  73     int            (*lstat)(const char *path, struct stat *buf);
  74     int            (*fstat)(int fd, struct stat *buf);
  75 #endif
  76 #ifndef HOST_OS_android
  77     void           (*seekdir)(DIR *dirp, long loc);
  78     long           (*telldir)(DIR *dirp);
  79     struct passwd *(*getpwent)(void);
  80     void           (*endpwent)(void);
  81 #endif
  82 };
  83
  84 #ifdef HOST_LONG_ALIGNED
  85 /*
  86  * Somewhat dirty hack to adjust data packing to iOS ARM ABI.
  87  * Perhaps this can be done in a cleaner and more CPU-abstract way.
  88  * FIXME: Always assuming little-endian CPU
  89  */
  90 #define LSeek(fildes, offset, whence) emulbase->pdata.SysIFace->lseek(fildes, (ULONG)offset, (ULONG)((UQUAD)offset >> 32), whence)
  91 #define FTruncate(fildes, length)     emulbase->pdata.SysIFace->ftruncate(fildes, (ULONG)length, (ULONG)((UQUAD)length >> 32))
  92 #else
  93 #define LSeek(fildes, offset, whence) emulbase->pdata.SysIFace->lseek(fildes, offset, whence)
  94 #define FTruncate(fildes, length)     emulbase->pdata.SysIFace->ftruncate(fildes, length)
  95 #endif