1 files changed, 78 insertions, 0 deletions
diff --git a/lib/libpthread/thread/thr_fcntl.c b/lib/libpthread/thread/thr_fcntl.c
new file mode 100644
index 0000000..947bc11
--- /dev/null
+++ b/lib/libpthread/thread/thr_fcntl.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by John Birrell.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#include <stdarg.h>
+#include "namespace.h"
+#include <fcntl.h>
+#include "un-namespace.h"
+#include <pthread.h>
+#include "thr_private.h"
+
+__weak_reference(__fcntl, fcntl);
+
+int
+__fcntl(int fd, int cmd,...)
+{
+	struct pthread *curthread = _get_curthread();
+	int	ret, check = 1;
+	va_list	ap;
+	
+	_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));
+		break;
+	case F_GETFD:
+	case F_GETFL:
+		ret = __sys_fcntl(fd, cmd);
+		break;
+	default:
+		ret = __sys_fcntl(fd, cmd, va_arg(ap, void *));
+	}
+	va_end(ap);
+
+	_thr_cancel_leave(curthread, check);
+
+	return (ret);
+}