1  /* Linux implementation of waitid.
       2     Copyright (C) 2004-2023 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 <stddef.h>
      20  #include <errno.h>
      21  #include <sys/wait.h>
      22  #include <sysdep-cancel.h>
      23  
      24  int
      25  __waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
      26  {
      27    /* The unused fifth argument is a `struct rusage *' that we could
      28       pass if we were using waitid to simulate wait3/wait4.  */
      29    return SYSCALL_CANCEL (waitid, idtype, id, infop, options, NULL);
      30  }
      31  weak_alias (__waitid, waitid)
      32  strong_alias (__waitid, __libc_waitid)