Initial foo

diff --git a/varnish-cache/bin/varnishd/cache_dir_dns.c b/varnish-cache/bin/varnishd/cache_dir_dns.c
new file mode 100644 (file)
index 0000000..fb6d6bc
--- /dev/null
+++ b/varnish-cache/bin/varnishd/cache_dir_dns.c
@@ -0,0 +1,117 @@
+/*-
+ * Copyright (c) 2006 Verdens Gang AS
+ * Copyright (c) 2006-2008 Linpro AS
+ * All rights reserved.
+ *
+ * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 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.
+ *
+ * $Id$
+ *
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "shmlog.h"
+#include "cache.h"
+#include "cache_backend.h"
+#include "vrt.h"
+
+/*--------------------------------------------------------------------*/
+
+struct vdi_dns {
+       unsigned                magic;
+#define VDI_DNS_MAGIC          0x443B3CDC
+       struct director         dir;
+       struct backend          *backend;
+       unsigned                dns_ttl;
+};
+
+static struct vbe_conn *
+vdi_dns_getfd(struct sess *sp)
+{
+       struct vdi_dns *vs;
+
+       CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+       CHECK_OBJ_NOTNULL(sp->director, DIRECTOR_MAGIC);
+       CAST_OBJ_NOTNULL(vs, sp->director->priv, VDI_DNS_MAGIC);
+       return (VBE_GetVbe(sp, vs->backend));
+}
+
+static unsigned
+vdi_dns_healthy(const struct sess *sp)
+{
+       struct vdi_dns *vs;
+
+       CHECK_OBJ_NOTNULL(sp, SESS_MAGIC);
+       CHECK_OBJ_NOTNULL(sp->director, DIRECTOR_MAGIC);
+       CAST_OBJ_NOTNULL(vs, sp->director->priv, VDI_DNS_MAGIC);
+       return 1;
+}
+
+/*lint -e{818} not const-able */
+static void
+vdi_dns_fini(struct director *d)
+{
+       struct vdi_dns *vs;
+
+       CHECK_OBJ_NOTNULL(d, DIRECTOR_MAGIC);
+       CAST_OBJ_NOTNULL(vs, d->priv, VDI_DNS_MAGIC);
+
+       VBE_DropRef(vs->backend);
+       free(vs->dir.vcl_name);
+       vs->dir.magic = 0;
+       FREE_OBJ(vs);
+}
+
+void
+VRT_init_dir_dns(struct cli *cli, struct director **bp,
+    const struct vrt_dir_simple *t)
+{
+       struct vdi_simple *vs;
+
+       (void)cli;
+
+       ALLOC_OBJ(vs, VDI_DNS_MAGIC);
+       XXXAN(vs);
+       vs->dir.magic = DIRECTOR_MAGIC;
+       vs->dir.priv = vs;
+       vs->dir.name = "dns";
+       REPLACE(vs->dir.vcl_name, t->host->vcl_name);
+       vs->dir.getfd = vdi_dns_getfd;
+       vs->dir.fini = vdi_dns_fini;
+       vs->dir.healthy = vdi_dns_healthy;
+
+       vs->dns_ttl = t->dns_ttl;
+
+       *bp = &vs->dir;
+}