Don't cry and die on a configured server (!) which doesn't resolve (DNS). Just cry some.postpone-resolving

Part of fixing RADSECPROXY-30.

1 files changed, 72 insertions, 0 deletions

diff --git a/common.c b/common.c
new file mode 100644
index 0000000..6a73a2c
--- /dev/null
+++ b/common.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 NORDUnet A/S
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#include <sys/socket.h>
+/*#include <netinet/in.h>*/
+#include <netdb.h>
+#include <assert.h>
+#include "radsecproxy.h"
+#include "debug.h"
+#include "hostport.h"
+#include "util.h"
+#include "common.h"
+
+int
+addserverextra(const struct clsrvconf *conf,
+               int *socket4,
+               int *socket6,
+               struct addrinfo *addrinfo)
+{
+    struct hostportres *hp = NULL;
+
+    assert(conf != NULL);
+    assert(socket != NULL);
+
+    if (list_first(conf->hostports) == NULL)
+        return 0;
+    hp = (struct hostportres *) list_first(conf->hostports)->data;
+    if (hp == NULL || hp->addrinfo == NULL)
+        return 0;
+
+    switch (hp->addrinfo->ai_family) {
+    case AF_INET:
+	if (*socket4 < 0) {
+            /* FIXME: arg 4 is v6only, wtf? */
+	    *socket4 = bindtoaddr(addrinfo, AF_INET, 0, 1);
+	    if (*socket4 < 0) {
+		debug(DBG_ERR,
+                      "%s: failed to create client socket for server %s",
+                      __func__, conf->name);
+                return 0;
+            }
+	}
+	conf->servers->sock = *socket4;
+	break;
+    case AF_INET6:
+	if (*socket6 < 0) {
+	    *socket6 = bindtoaddr(addrinfo, AF_INET6, 0, 1);
+	    if (*socket6 < 0) {
+		debug(DBG_ERR,
+                      "%s: failed to create client socket for server %s",
+                      __func__, conf->name);
+                return 0;
+            }
+	}
+	conf->servers->sock = *socket6;
+	break;
+    default:
+	debug(DBG_ERR, "%s: unsupported address family", __func__);
+        return 0;
+    }
+
+    return 1;
+}
+
+/* Local Variables: */
+/* c-file-style: "stroustrup" */
+/* End: */