debug/recvfrom_chk.c

   1 /* Copyright (C) 2005 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sys/param.h>
  20 #include <sys/socket.h>
  21
  22
  23 ssize_t
  24 __recvfrom_chk (int fd, void *buf, size_t n, size_t buflen, int flags,
  25                 __SOCKADDR_ARG addr, socklen_t *addr_len)
  26 {
  27   if (n > buflen)
  28     __chk_fail ();
  29
  30   return __recvfrom (fd, buf, n, flags, addr, addr_len);
  31 }