1 files changed, 85 insertions, 0 deletions
diff --git a/sbin/hastd/proto_common.c b/sbin/hastd/proto_common.c
new file mode 100644
index 0000000..22102d8
--- /dev/null
+++ b/sbin/hastd/proto_common.c
@@ -0,0 +1,85 @@
+/*-
+ * Copyright (c) 2009-2010 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * 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 AUTHORS 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 THE AUTHORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <strings.h>
+
+#include "proto_impl.h"
+
+/* Maximum size of packet we want to use when sending data. */
+#ifndef MAX_SEND_SIZE
+//#define	MAX_SEND_SIZE	32768
+#define	MAX_SEND_SIZE	131072
+#endif
+
+int
+proto_common_send(int fd, const unsigned char *data, size_t size)
+{
+	ssize_t done;
+	size_t sendsize;
+
+	do {
+		sendsize = size < MAX_SEND_SIZE ? size : MAX_SEND_SIZE;
+		done = send(fd, data, sendsize, MSG_NOSIGNAL);
+		if (done == 0)
+			return (ENOTCONN);
+		else if (done < 0) {
+			if (errno == EAGAIN)
+				continue;
+			return (errno);
+		}
+		data += done;
+		size -= done;
+	} while (size > 0);
+
+	return (0);
+}
+
+int
+proto_common_recv(int fd, unsigned char *data, size_t size)
+{
+	ssize_t done;
+
+	do {
+		done = recv(fd, data, size, MSG_WAITALL);
+	} while (done == -1 && errno == EAGAIN);
+	if (done == 0)
+		return (ENOTCONN);
+	else if (done < 0)
+		return (errno);
+	return (0);
+}