sysdeps/unix/sysv/linux/recvfrom.c

   1 /* Copyright (C) 2015-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <sys/socket.h>
  19 #include <sysdep-cancel.h>
  20 #include <socketcall.h>
  21
  22 ssize_t
  23 __libc_recvfrom (int fd, void *buf, size_t len, int flags,
  24                  __SOCKADDR_ARG addr, socklen_t *addrlen)
  25 {
  26 #ifdef __ASSUME_RECVFROM_SYSCALL
  27   return SYSCALL_CANCEL (recvfrom, fd, buf, len, flags, addr.__sockaddr__,
  28                          addrlen);
  29 #else
  30   return SOCKETCALL_CANCEL (recvfrom, fd, buf, len, flags, addr.__sockaddr__,
  31                             addrlen);
  32 #endif
  33 }
  34 weak_alias (__libc_recvfrom, recvfrom)
  35 weak_alias (__libc_recvfrom, __recvfrom)