sysdeps/mach/hurd/getsid.c

   1 /* getsid -- Return session ID of a process.  Hurd version.
   2 Copyright (C) 1995 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 Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 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 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  18 Cambridge, MA 02139, USA.  */
  19
  20 #include <sys/types.h>
  21 #include <unistd.h>
  22 #include <errno.h>
  23 #include <hurd.h>
  24
  25 pid_t
  26 getsid (pid_t pid)
  27 {
  28   error_t err;
  29   pid_t sid;
  30
  31   err = __USEPORT (PROC, __proc_getsid (port, pid, &sid));
  32   if (err)
  33     return (pid_t) __hurd_fail (err);
  34   return sid;
  35 }