diff options
Diffstat (limited to 'newlib/libc/stdio/freopen.c')
| -rw-r--r-- | newlib/libc/stdio/freopen.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/newlib/libc/stdio/freopen.c b/newlib/libc/stdio/freopen.c index 235ffba53..fb1f6c4db 100644 --- a/newlib/libc/stdio/freopen.c +++ b/newlib/libc/stdio/freopen.c @@ -95,7 +95,7 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp), register FILE *__restrict fp) { register int f; - int flags, oflags; + int flags, oflags, oflags2; int e = 0; CHECK_INIT (ptr, fp); @@ -106,11 +106,14 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp), int __oldcancel; pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &__oldcancel); #endif - _flockfile (fp); + oflags2 = fp->_flags2; + if (!(oflags2 & __SNLK)) + _flockfile (fp); if ((flags = __sflags (ptr, mode, &oflags)) == 0) { - _funlockfile (fp); + if (!(oflags2 & __SNLK)) + _funlockfile (fp); #ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT pthread_setcancelstate (__oldcancel, &__oldcancel); #endif @@ -217,7 +220,8 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp), __sfp_lock_acquire (); fp->_flags = 0; /* set it free */ ptr->_errno = e; /* restore in case _close clobbered */ - _funlockfile (fp); + if (!(oflags2 & __SNLK)) + _funlockfile (fp); #ifndef __SINGLE_THREAD__ __lock_close_recursive (fp->_lock); #endif @@ -241,7 +245,8 @@ _DEFUN(_freopen_r, (ptr, file, mode, fp), fp->_flags |= __SCLE; #endif - _funlockfile (fp); + if (!(oflags2 & __SNLK)) + _funlockfile (fp); #ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT pthread_setcancelstate (__oldcancel, &__oldcancel); #endif |