1 files changed, 64 insertions, 0 deletions
diff --git a/lib/libc/gen/sendmmsg.c b/lib/libc/gen/sendmmsg.c
new file mode 100644
index 000000000000..7b3e8f357613
--- /dev/null
+++ b/lib/libc/gen/sendmmsg.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2016 Boris Astardzhiev, Smartcom-Bulgaria AD
+ * All rights reserved.
+ *
+ * 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(s), this list of conditions and the following disclaimer as
+ *    the first lines of this file unmodified other than the possible
+ *    addition of one or more copyright notices.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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 "libc_private.h"
+
+ssize_t
+sendmmsg(int s, struct mmsghdr *__restrict msgvec, size_t vlen, int flags)
+{
+	size_t i, sent;
+	ssize_t ret;
+
+	sent = 0;
+	for (i = 0; i < vlen; i++, sent++) {
+		ret = __sys_sendmsg(s, &msgvec[i].msg_hdr, flags);
+		if (ret == -1) {
+			if (sent != 0) {
+				/*
+				 * We have sent messages. Let caller
+				 * know about the data sent, socket
+				 * error is returned on next
+				 * invocation.
+				 */
+				return (sent);
+			}
+			return (ret);
+		}
+
+		/* Save sent bytes. */
+		msgvec[i].msg_len = ret;
+	}
+
+	return (sent);
+}