--- /dev/null
+/*
+ * Amanda, The Advanced Maryland Automatic Network Disk Archiver
+ * Copyright (c) 1991-1998 University of Maryland at College Park
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of U.M. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. U.M. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Authors: the Amanda Development Team. Its members are listed in a
+ * file named AUTHORS, in the root directory of this distribution.
+ */
+
+/* moved from amflock.c by Dustin J. Mitchell <dustin@zmanda.com> */
+
+#include "amanda.h"
+
+static int
+posix_lock(
+ int fd,
+ G_GNUC_UNUSED char *resource)
+{
+ struct flock lock;
+
+ lock.l_type = F_WRLCK;
+ lock.l_start = 0;
+ lock.l_whence = SEEK_SET;
+ lock.l_len = 0; /* to EOF */
+ return fcntl(fd, F_SETLKW, &lock);
+}
+
+static int
+posix_rolock(
+ int fd,
+ G_GNUC_UNUSED char *resource)
+{
+ struct flock lock;
+
+ lock.l_type = F_RDLCK;
+ lock.l_start = 0;
+ lock.l_whence = SEEK_SET;
+ lock.l_len = 0; /* to EOF */
+ return fcntl(fd, F_SETLKW, &lock);
+}
+
+static int
+posix_unlock(
+ int fd,
+ G_GNUC_UNUSED char *resource)
+{
+ struct flock lock;
+
+ lock.l_type = F_UNLCK;
+ lock.l_start = 0;
+ lock.l_whence = SEEK_SET;
+ lock.l_len = 0; /* to EOF */
+ return fcntl(fd, F_SETLK, &lock);
+}
+
+amflock_impl_t amflock_posix_impl = {
+ posix_lock,
+ posix_rolock,
+ posix_unlock,
+ "posix"
+};