1 files changed, 35 insertions, 0 deletions
diff --git a/liblock/lockflock.c b/liblock/lockflock.c
new file mode 100644
index 0000000..0e53aa3
--- /dev/null
+++ b/liblock/lockflock.c
@@ -0,0 +1,35 @@
+/*
+** Copyright 1998 - 1999 Double Precision, Inc.  See COPYING for
+** distribution information.
+*/
+
+#if	HAVE_CONFIG_H
+#include	"config.h"
+#endif
+#include	<sys/types.h>
+#if	HAVE_FCNTL_H
+#include	<fcntl.h>
+#endif
+#if	HAVE_SYS_FCNTL_H
+#include	<sys/fcntl.h>
+#endif
+#if	HAVE_SYS_FILE_H
+#include	<sys/file.h>
+#endif
+#include	<errno.h>
+#include	"liblock.h"
+
+int	ll_lockfd(int fd, int ltype, LL_OFFSET_TYPE start, LL_OFFSET_TYPE len)
+{
+	if (start || len
+		|| (ltype & ll_whence_curpos)
+		|| (ltype & ll_whence_end))
+	{
+		errno=EINVAL;
+		return (-1);
+	}
+
+	return (flock(fd, ltype & ll_unlock ? LOCK_UN:
+		(ltype & ll_writelock ? LOCK_EX:LOCK_SH) |
+		(ltype & ll_wait ? 0:LOCK_NB)));
+}