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- /* Copyright (C) 1991-2019 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
- #include <errno.h>
- #include <signal.h>
- /* If SET is not NULL, modify the current set of blocked signals
- according to HOW, which may be SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK.
- If OSET is not NULL, store the old set of blocked signals in *OSET. */
- int
- __sigprocmask (int how, const sigset_t *set, sigset_t *oset)
- {
- switch (how)
- {
- case SIG_BLOCK:
- case SIG_UNBLOCK:
- case SIG_SETMASK:
- break;
- default:
- __set_errno (EINVAL);
- return -1;
- }
- __set_errno (ENOSYS);
- return -1;
- }
- /* No stub warning because abort calls __sigprocmask,
- and we don't want warnings for every use of abort on
- a system without safe signals. */
- libc_hidden_def (__sigprocmask)
- weak_alias (__sigprocmask, sigprocmask)
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