diff options
Diffstat (limited to 'newlib/libc/stdio/fseek.c')
| -rw-r--r-- | newlib/libc/stdio/fseek.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/newlib/libc/stdio/fseek.c b/newlib/libc/stdio/fseek.c index e1670e1..028c62a 100644 --- a/newlib/libc/stdio/fseek.c +++ b/newlib/libc/stdio/fseek.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1990, 2007 The Regents of the University of California. + * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted @@ -122,7 +122,7 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), long offset _AND int whence) { - _fpos_t _EXFUN((*seekfn), (_PTR, _fpos_t, int)); + _fpos_t _EXFUN((*seekfn), (struct _reent *, _PTR, _fpos_t, int)); _fpos_t target; _fpos_t curoff = 0; size_t n; @@ -175,7 +175,7 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), curoff = fp->_offset; else { - curoff = (*seekfn) (fp->_cookie, (_fpos_t) 0, SEEK_CUR); + curoff = seekfn (ptr, fp->_cookie, (_fpos_t) 0, SEEK_CUR); if (curoff == -1L) { _funlockfile (fp); @@ -259,6 +259,11 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), goto dumb; target = st.st_size + offset; } + if ((long)target != target) + { + ptr->_errno = EOVERFLOW; + return EOF; + } if (!havepos) { @@ -266,7 +271,7 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), curoff = fp->_offset; else { - curoff = (*seekfn) (fp->_cookie, 0L, SEEK_CUR); + curoff = seekfn (ptr, fp->_cookie, 0L, SEEK_CUR); if (curoff == POS_ERR) goto dumb; } @@ -327,7 +332,7 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), */ curoff = target & ~(fp->_blksize - 1); - if ((*seekfn) (fp->_cookie, curoff, SEEK_SET) == POS_ERR) + if (seekfn (ptr, fp->_cookie, curoff, SEEK_SET) == POS_ERR) goto dumb; fp->_r = 0; fp->_p = fp->_bf._base; @@ -351,7 +356,7 @@ _DEFUN(_fseek_r, (ptr, fp, offset, whence), */ dumb: - if (fflush (fp) || (*seekfn) (fp->_cookie, offset, whence) == POS_ERR) + if (fflush (fp) || seekfn (ptr, fp->_cookie, offset, whence) == POS_ERR) { _funlockfile (fp); return EOF; |