1 files changed, 35 insertions, 0 deletions
diff --git a/liblock/lockfcntl.c b/liblock/lockfcntl.c
new file mode 100644
index 0000000..23be7aa
--- /dev/null
+++ b/liblock/lockfcntl.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
+#include	"liblock.h"
+
+int	ll_lockfd(int fd, int ltype, LL_OFFSET_TYPE start, LL_OFFSET_TYPE len)
+{
+#if HAS_FLOCK_T
+flock_t	ft;
+#else
+struct flock ft;
+#endif
+
+	ft.l_type=ltype & ll_unlock ? F_UNLCK:
+		ltype & ll_writelock ? F_WRLCK:F_RDLCK;
+	ft.l_whence=ltype & ll_whence_curpos ? 1:
+			ltype & ll_whence_end ? 2:0;
+	ft.l_start=start;
+	ft.l_len=len;
+
+	return (fcntl(fd, (ltype & ll_unlock) == 0 && (ltype & ll_wait)
+			? F_SETLKW:F_SETLK, &ft));
+}