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glibc  2.9
Functions
xstatconv.c File Reference
#include <errno.h>
#include <sys/stat.h>
#include <kernel_stat.h>
#include <kernel-features.h>
#include <string.h>

Go to the source code of this file.

Functions

int __xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
int __xstat64_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
int __xstat32_conv (int vers, struct stat64 *kbuf, struct stat *buf)

Function Documentation

int __xstat32_conv ( int  vers,
struct stat64 kbuf,
struct stat buf 
)

Definition at line 184 of file xstatconv.c.

{
  switch (vers)
    {
    case _STAT_VER_LINUX:
      {
       /* Convert current kernel version of `struct stat64' to
           `struct stat'.  */
       buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT___PAD1
       buf->__pad1 = 0;
#endif
#ifdef _HAVE_STAT64___ST_INO
# if __ASSUME_ST_INO_64_BIT == 0
       if (kbuf->st_ino == 0)
         buf->st_ino = kbuf->__st_ino;
       else
# endif
         {
           buf->st_ino = kbuf->st_ino;
           if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
              && buf->st_ino != kbuf->st_ino)
             {
              __set_errno (EOVERFLOW);
              return -1;
             }
         }
#else
       buf->st_ino = kbuf->st_ino;
       if (sizeof (buf->st_ino) != sizeof (kbuf->st_ino)
           && buf->st_ino != kbuf->st_ino)
         {
           __set_errno (EOVERFLOW);
           return -1;
         }
#endif
       buf->st_mode = kbuf->st_mode;
       buf->st_nlink = kbuf->st_nlink;
       buf->st_uid = kbuf->st_uid;
       buf->st_gid = kbuf->st_gid;
       buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT___PAD2
       buf->__pad2 = 0;
#endif
       buf->st_size = kbuf->st_size;
       /* Check for overflow.  */
       if (sizeof (buf->st_size) != sizeof (kbuf->st_size)
           && buf->st_size != kbuf->st_size)
         {
           __set_errno (EOVERFLOW);
           return -1;
         }
       buf->st_blksize = kbuf->st_blksize;
       buf->st_blocks = kbuf->st_blocks;
       /* Check for overflow.  */
       if (sizeof (buf->st_blocks) != sizeof (kbuf->st_blocks)
           && buf->st_blocks != kbuf->st_blocks)
         {
           __set_errno (EOVERFLOW);
           return -1;
         }
#ifdef _HAVE_STAT_NSEC
       buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
       buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
       buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
       buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
       buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
       buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
       buf->st_atime = kbuf->st_atime;
       buf->st_mtime = kbuf->st_mtime;
       buf->st_ctime = kbuf->st_ctime;
#endif

#ifdef _HAVE_STAT___UNUSED1
       buf->__unused1 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED2
       buf->__unused2 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED3
       buf->__unused3 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED4
       buf->__unused4 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED5
       buf->__unused5 = 0;
#endif
      }
      break;

      /* If struct stat64 is different from struct stat then
        _STAT_VER_KERNEL does not make sense.  */
    case _STAT_VER_KERNEL:
    default:
      __set_errno (EINVAL);
      return -1;
    }

  return 0;
}
int __xstat64_conv ( int  vers,
struct kernel_stat kbuf,
void *  ubuf 
)

Definition at line 110 of file xstatconv.c.

{
#ifdef XSTAT_IS_XSTAT64
  return __xstat_conv (vers, kbuf, ubuf);
#else
  switch (vers)
    {
    case _STAT_VER_LINUX:
      {
       struct stat64 *buf = ubuf;

       /* Convert to current kernel version of `struct stat64'.  */
       buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT64___PAD1
       buf->__pad1 = 0;
#endif
       buf->st_ino = kbuf->st_ino;
#ifdef _HAVE_STAT64___ST_INO
       buf->__st_ino = kbuf->st_ino;
#endif
       buf->st_mode = kbuf->st_mode;
       buf->st_nlink = kbuf->st_nlink;
       buf->st_uid = kbuf->st_uid;
       buf->st_gid = kbuf->st_gid;
       buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT64___PAD2
       buf->__pad2 = 0;
#endif
       buf->st_size = kbuf->st_size;
       buf->st_blksize = kbuf->st_blksize;
       buf->st_blocks = kbuf->st_blocks;
#ifdef _HAVE_STAT64_NSEC
       buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
       buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
       buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
       buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
       buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
       buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
       buf->st_atime = kbuf->st_atime;
       buf->st_mtime = kbuf->st_mtime;
       buf->st_ctime = kbuf->st_ctime;
#endif
#ifdef _HAVE_STAT64___UNUSED1
       buf->__unused1 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED2
       buf->__unused2 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED3
       buf->__unused3 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED4
       buf->__unused4 = 0;
#endif
#ifdef _HAVE_STAT64___UNUSED5
       buf->__unused5 = 0;
#endif
      }
      break;

      /* If struct stat64 is different from struct stat then
        _STAT_VER_KERNEL does not make sense.  */
    case _STAT_VER_KERNEL:
    default:
      __set_errno (EINVAL);
      return -1;
    }

  return 0;
#endif
}

Here is the call graph for this function:

int __xstat_conv ( int  vers,
struct kernel_stat kbuf,
void *  ubuf 
)

Definition at line 38 of file xstatconv.c.

{
  switch (vers)
    {
    case _STAT_VER_KERNEL:
      /* Nothing to do.  The struct is in the form the kernel expects.
         We should have short-circuted before we got here, but for
         completeness... */
      *(struct kernel_stat *) ubuf = *kbuf;
      break;

    case _STAT_VER_LINUX:
      {
       struct stat *buf = ubuf;

       /* Convert to current kernel version of `struct stat'.  */
       buf->st_dev = kbuf->st_dev;
#ifdef _HAVE_STAT___PAD1
       buf->__pad1 = 0;
#endif
       buf->st_ino = kbuf->st_ino;
       buf->st_mode = kbuf->st_mode;
       buf->st_nlink = kbuf->st_nlink;
       buf->st_uid = kbuf->st_uid;
       buf->st_gid = kbuf->st_gid;
       buf->st_rdev = kbuf->st_rdev;
#ifdef _HAVE_STAT___PAD2
       buf->__pad2 = 0;
#endif
       buf->st_size = kbuf->st_size;
       buf->st_blksize = kbuf->st_blksize;
       buf->st_blocks = kbuf->st_blocks;
#ifdef _HAVE_STAT_NSEC
       buf->st_atim.tv_sec = kbuf->st_atim.tv_sec;
       buf->st_atim.tv_nsec = kbuf->st_atim.tv_nsec;
       buf->st_mtim.tv_sec = kbuf->st_mtim.tv_sec;
       buf->st_mtim.tv_nsec = kbuf->st_mtim.tv_nsec;
       buf->st_ctim.tv_sec = kbuf->st_ctim.tv_sec;
       buf->st_ctim.tv_nsec = kbuf->st_ctim.tv_nsec;
#else
       buf->st_atime = kbuf->st_atime;
       buf->st_mtime = kbuf->st_mtime;
       buf->st_ctime = kbuf->st_ctime;
#endif
#ifdef _HAVE_STAT___UNUSED1
       buf->__unused1 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED2
       buf->__unused2 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED3
       buf->__unused3 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED4
       buf->__unused4 = 0;
#endif
#ifdef _HAVE_STAT___UNUSED5
       buf->__unused5 = 0;
#endif
      }
      break;

    default:
      __set_errno (EINVAL);
      return -1;
    }

  return 0;
}