signal/sigpause.c

   1 /* Copyright (C) 1991-2021 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #define sigpause __rename_sigpause
  19 #include <errno.h>
  20 #include <signal.h>
  21 #undef sigpause
  22
  23 int
  24 __sigpause (int sig_or_mask, int is_sig)
  25 {
  26   __set_errno (ENOSYS);
  27   return -1;
  28 }
  29 stub_warning (__sigpause)
  30 libc_hidden_def (__sigpause)
  31
  32 int
  33 __attribute__ ((weak))
  34 __default_sigpause (int mask)
  35 {
  36   __set_errno (ENOSYS);
  37   return -1;
  38 }
  39 weak_alias (__default_sigpause, sigpause)
  40 stub_warning (sigpause)
  41
  42
  43 int
  44 __attribute ((weak))
  45 __xpg___sigpause (int sig)
  46 {
  47   __set_errno (ENOSYS);
  48   return -1;
  49 }