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-rw-r--r--libio/iofopen.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/libio/iofopen.c b/libio/iofopen.c
index e4821cb..e3b9838 100644
--- a/libio/iofopen.c
+++ b/libio/iofopen.c
@@ -67,25 +67,12 @@ __fopen_maybe_mmap (fp)
# endif
if (p != MAP_FAILED)
{
- if (
-# ifdef _G_LSEEK64
- _G_LSEEK64 (fp->_fileno, st.st_size, SEEK_SET)
-# else
- __lseek (fp->_fileno, st.st_size, SEEK_SET)
-# endif
- != st.st_size)
- {
- /* We cannot search the file. Don't mmap then. */
- __munmap (p, st.st_size);
- return fp;
- }
-
/* OK, we managed to map the file. Set the buffer up
and use a special jump table with simplified
underflow functions which never tries to read
anything from the file. */
_IO_setb (fp, p, (char *) p + st.st_size, 0);
- _IO_setg (fp, p, p, (char *) p + st.st_size);
+ _IO_setg (fp, p, p, p);
if (fp->_mode <= 0)
_IO_JUMPS ((struct _IO_FILE_plus *) fp) = &_IO_file_jumps_mmap;
@@ -93,7 +80,7 @@ __fopen_maybe_mmap (fp)
_IO_JUMPS ((struct _IO_FILE_plus *) fp) = &_IO_wfile_jumps_mmap;
fp->_wide_data->_wide_vtable = &_IO_wfile_jumps_mmap;
- fp->_offset = st.st_size;
+ fp->_offset = 0;
}
}
}