Add recvmmsg and sendmmsg to the generic glibc API.

socket/sendmmsg.c

@@ -0,0 +1,32 @@
+/* Send multiple messages on a socket.  Stub version.
+   Copyright (C) 2011-2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <sys/socket.h>
+
+/* Send a VLEN messages as described by VMESSAGES to socket FD.
+   Returns the number of datagrams successfully written or -1 for errors.  */
+int
+__sendmmsg (int fd, struct mmsghdr *vmessages, unsigned int vlen, int flags)
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+libc_hidden_def (__sendmmsg)
+weak_alias (__sendmmsg, sendmmsg)
+stub_warning (sendmmsg)