2016-01-04 16:05:18 +00:00
|
|
|
/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
|
2015-05-22 11:36:08 +00:00
|
|
|
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 <sys/socket.h>
|
|
|
|
|
#include <sysdep-cancel.h>
|
|
|
|
|
#include <socketcall.h>
|
2016-03-18 20:34:33 +00:00
|
|
|
#include <shlib-compat.h>
|
2015-05-22 11:36:08 +00:00
|
|
|
|
|
|
|
|
ssize_t
|
|
|
|
|
__libc_sendmsg (int fd, const struct msghdr *msg, int flags)
|
|
|
|
|
{
|
2016-03-18 20:34:33 +00:00
|
|
|
/* POSIX specifies that both msghdr::msg_iovlen and msghdr::msg_controllen
|
|
|
|
|
to be int and socklen_t respectively. However Linux defines it as
|
|
|
|
|
both size_t. So for 64-bit it requires some adjustments by copying to
|
|
|
|
|
temporary header and zeroing the pad fields. */
|
|
|
|
|
#if __WORDSIZE == 64
|
|
|
|
|
struct msghdr hdr;
|
|
|
|
|
if (msg != NULL)
|
|
|
|
|
{
|
|
|
|
|
hdr = *msg;
|
|
|
|
|
hdr.__glibc_reserved1 = 0;
|
|
|
|
|
hdr.__glibc_reserved2 = 0;
|
|
|
|
|
msg = &hdr;
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
|
2015-08-25 13:23:47 +00:00
|
|
|
#ifdef __ASSUME_SENDMSG_SYSCALL
|
|
|
|
|
return SYSCALL_CANCEL (sendmsg, fd, msg, flags);
|
|
|
|
|
#else
|
2015-05-22 11:36:08 +00:00
|
|
|
return SOCKETCALL_CANCEL (sendmsg, fd, msg, flags);
|
2015-08-25 13:23:47 +00:00
|
|
|
#endif
|
2015-05-22 11:36:08 +00:00
|
|
|
}
|
|
|
|
|
weak_alias (__libc_sendmsg, __sendmsg)
|
2016-03-18 20:34:33 +00:00
|
|
|
versioned_symbol (libc, __libc_sendmsg, sendmsg, GLIBC_2_24);
|
