diff options
Diffstat (limited to 'lib/libpthread/thread/thr_fcntl.c')
| -rw-r--r-- | lib/libpthread/thread/thr_fcntl.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/libpthread/thread/thr_fcntl.c b/lib/libpthread/thread/thr_fcntl.c index 0b4a990..947bc11 100644 --- a/lib/libpthread/thread/thr_fcntl.c +++ b/lib/libpthread/thread/thr_fcntl.c @@ -44,14 +44,21 @@ int __fcntl(int fd, int cmd,...) { struct pthread *curthread = _get_curthread(); - int ret; + int ret, check = 1; va_list ap; - _thr_enter_cancellation_point(curthread); + _thr_cancel_enter(curthread); va_start(ap, cmd); switch (cmd) { case F_DUPFD: + ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); + /* + * To avoid possible file handle leak, + * only check cancellation point if it is failure + */ + check = (ret == -1); + break; case F_SETFD: case F_SETFL: ret = __sys_fcntl(fd, cmd, va_arg(ap, int)); @@ -65,7 +72,7 @@ __fcntl(int fd, int cmd,...) } va_end(ap); - _thr_leave_cancellation_point(curthread); + _thr_cancel_leave(curthread, check); return (ret); } |
