| 1 | /* Copyright (C) 1991-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <errno.h> |
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| 19 | #include <signal.h> |
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| 20 | #include <internal-signals.h> |
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| 21 | |
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| 22 | /* If ACT is not NULL, change the action for SIG to *ACT. |
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| 23 | If OACT is not NULL, put the old action for SIG in *OACT. */ |
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| 24 | int |
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| 25 | __sigaction (int sig, const struct sigaction *act, struct sigaction *oact) |
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| 26 | { |
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| 27 | if (sig <= 0 || sig >= NSIG || __is_internal_signal (sig)) |
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| 28 | { |
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| 29 | __set_errno (EINVAL); |
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| 30 | return -1; |
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| 31 | } |
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| 32 | |
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| 33 | return __libc_sigaction (sig, act, oact); |
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| 34 | } |
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| 35 | libc_hidden_def (__sigaction) |
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| 36 | weak_alias (__sigaction, sigaction) |
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| 37 | |
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