diff options
Diffstat (limited to 'newlib/libc/stdio/fclose.c')
| -rw-r--r-- | newlib/libc/stdio/fclose.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/newlib/libc/stdio/fclose.c b/newlib/libc/stdio/fclose.c index fd054feaa..cd271c490 100644 --- a/newlib/libc/stdio/fclose.c +++ b/newlib/libc/stdio/fclose.c @@ -92,10 +92,15 @@ _DEFUN(_fclose_r, (rptr, fp), #endif return (0); } - /* Unconditionally flush to allow special handling for seekable read - files to reposition file to last byte processed as opposed to - last byte read ahead into the buffer. */ - r = _fflush_r (rptr, fp); +#ifdef _STDIO_BSD_SEMANTICS + /* BSD and Glibc systems only flush streams which have been written to. */ + r = (fp->_flags & __SWR) ? __sflush_r (rptr, fp) : 0; +#else + /* Follow POSIX semantics exactly. Unconditionally flush to allow + special handling for seekable read files to reposition file to last + byte processed as opposed to last byte read ahead into the buffer. */ + r = __sflush_r (rptr, fp); +#endif if (fp->_close != NULL && fp->_close (rptr, fp->_cookie) < 0) r = EOF; if (fp->_flags & __SMBF) |