sysdeps/unix/sysv/linux/recvmsg.c

   1 /* Linux recvmsg syscall wrapper.
   2    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <sys/socket.h>
  20 #include <sysdep-cancel.h>
  21 #include <socketcall.h>
  22 #include <shlib-compat.h>
  23
  24 ssize_t
  25 __libc_recvmsg (int fd, struct msghdr *msg, int flags)
  26 {
  27 # ifdef __ASSUME_RECVMSG_SYSCALL
  28   return SYSCALL_CANCEL (recvmsg, fd, msg, flags);
  29 # else
  30   return SOCKETCALL_CANCEL (recvmsg, fd, msg, flags);
  31 # endif
  32 }
  33 weak_alias (__libc_recvmsg, recvmsg)
  34 weak_alias (__libc_recvmsg, __recvmsg)