minix/lib/libpuffs/stadir.c

   1 /* Created (MFS based):
   2  *   February 2010 (Evgeniy Ivanov)
   3  */
   4
   5 #include "fs.h"
   6
   7 /*===========================================================================*
   8  *                             fs_stat                                       *
   9  *===========================================================================*/
  10 int fs_stat(ino_t ino_nr, struct stat *statbuf)
  11 {
  12   register struct puffs_node *pn;  /* target pnode */
  13   struct vattr va;
  14   mode_t mo;
  15   int s;
  16   PUFFS_MAKECRED(pcr, &global_kcred);
  17
  18   if (global_pu->pu_ops.puffs_node_getattr == NULL) {
  19         lpuffs_debug("fs_stat: puffs_node_getattr is missing\n");
  20         return(EINVAL);
  21   }
  22
  23   if ((pn = puffs_pn_nodewalk(global_pu, find_inode_cb, &ino_nr)) == NULL) {
  24         lpuffs_debug("walk failed...\n");
  25         return(EINVAL);
  26   }
  27
  28   if (global_pu->pu_ops.puffs_node_getattr(global_pu, pn, &va, pcr) != 0) {
  29         if (errno) {
  30                 if (errno > 0) errno = -errno;
  31                 return(errno);
  32         }
  33         return(EINVAL);
  34   }
  35
  36   /* Fill in the statbuf struct. */
  37   mo = va.va_mode & I_TYPE;
  38
  39   /* true iff special */
  40   s = (mo == I_CHAR_SPECIAL || mo == I_BLOCK_SPECIAL);
  41
  42   statbuf->st_mode = va.va_mode;
  43   statbuf->st_nlink = va.va_nlink;
  44   statbuf->st_uid = va.va_uid;
  45   statbuf->st_gid = va.va_gid;
  46   statbuf->st_rdev = (s ? va.va_rdev : NO_DEV);
  47   statbuf->st_size = va.va_size;
  48   statbuf->st_atimespec = va.va_atime;
  49   statbuf->st_mtimespec = va.va_mtime;
  50   statbuf->st_ctimespec = va.va_ctime;
  51
  52   statbuf->st_birthtimespec = va.va_birthtime;
  53   statbuf->st_blksize = va.va_blocksize;
  54   statbuf->st_blocks = va.va_bytes / va.va_blocksize;
  55   statbuf->st_flags = va.va_flags;
  56   statbuf->st_gen = va.va_gen;
  57
  58   return(OK);
  59 }
  60
  61
  62 /*===========================================================================*
  63  *                             fs_statvfs                                    *
  64  *===========================================================================*/
  65 int fs_statvfs(struct statvfs *st)
  66 {
  67
  68   if (global_pu->pu_ops.puffs_fs_statvfs(global_pu, st) != 0) {
  69         lpuffs_debug("statvfs failed\n");
  70         return(EINVAL);
  71   }
  72
  73   /* libpuffs doesn't truncate filenames */
  74   st->f_flag |= ST_NOTRUNC;
  75
  76   return(OK);
  77 }