release/src/router/busybox/e2fsprogs/e2fs_lib.h

   1 /* vi: set sw=4 ts=4: */
   2 /*
   3  * See README for additional information
   4  *
   5  * This file can be redistributed under the terms of the GNU Library General
   6  * Public License
   7  */
   8
   9 /* Constants and structures */
  10 #include "bb_e2fs_defs.h"
  11
  12 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
  13
  14 /* Iterate a function on each entry of a directory */
  15 int iterate_on_dir(const char *dir_name,
  16                 int FAST_FUNC (*func)(const char *, struct dirent *, void *),
  17                 void *private);
  18
  19 /* Get/set a file version on an ext2 file system */
  20 int fgetsetversion(const char *name, unsigned long *get_version, unsigned long set_version);
  21 #define fgetversion(name, version) fgetsetversion(name, version, 0)
  22 #define fsetversion(name, version) fgetsetversion(name, NULL, version)
  23
  24 /* Get/set a file flags on an ext2 file system */
  25 int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_flags);
  26 #define fgetflags(name, flags) fgetsetflags(name, flags, 0)
  27 #define fsetflags(name, flags) fgetsetflags(name, NULL, flags)
  28
  29 /* Must be 1 for compatibility with `int long_format'. */
  30 #define PFOPT_LONG  1
  31 /* Print file attributes on an ext2 file system */
  32 void print_e2flags(FILE *f, unsigned long flags, unsigned options);
  33
  34 extern const uint32_t e2attr_flags_value[];
  35 extern const char e2attr_flags_sname[];
  36
  37 /* If you plan to ENABLE_COMPRESSION, see e2fs_lib.c and chattr.c - */
  38 /* make sure that chattr doesn't accept bad options! */
  39 #ifdef ENABLE_COMPRESSION
  40 #define e2attr_flags_value_chattr (&e2attr_flags_value[5])
  41 #define e2attr_flags_sname_chattr (&e2attr_flags_sname[5])
  42 #else
  43 #define e2attr_flags_value_chattr (&e2attr_flags_value[1])
  44 #define e2attr_flags_sname_chattr (&e2attr_flags_sname[1])
  45 #endif
  46
  47 /* uuid helpers */
  48 #define uuid_clear(uu) memset(uu, 0, sizeof(uu))
  49 #define uuid_copy(dst,src) memcpy(dst, src, sizeof(dst))
  50 #define uuid_is_null(uu) (!memcmp(uu, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", sizeof(uu)))
  51
  52 POP_SAVED_FUNCTION_VISIBILITY