d915a14ef0
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2012 Jukka A. Ukkonen
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* All rights reserved.
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*
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* This software was developed by Jukka Ukkonen for FreeBSD.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "namespace.h"
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stddef.h>
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#include <string.h>
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#include <signal.h>
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#include <errno.h>
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#include "un-namespace.h"
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#include "libc_private.h"
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int __waitid(idtype_t, id_t, siginfo_t *, int);
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int
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__waitid(idtype_t idtype, id_t id, siginfo_t *info, int flags)
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{
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int status;
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pid_t ret;
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ret = ((pid_t (*)(idtype_t, id_t, int *, int, struct __wrusage *,
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siginfo_t *))__libc_interposing[INTERPOS_wait6])(idtype, id,
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&status, flags, NULL, info);
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/*
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* According to SUSv4, waitid() shall not return a PID when a
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* process is found, but only 0. If a process was actually
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* found, siginfo_t fields si_signo and si_pid will be
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* non-zero. In case WNOHANG was set in the flags and no
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* process was found those fields are set to zero using
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* memset() below.
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*/
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if (ret == 0 && info != NULL)
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memset(info, 0, sizeof(*info));
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else if (ret > 0)
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ret = 0;
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return (ret);
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}
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__weak_reference(__waitid, waitid);
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__weak_reference(__waitid, _waitid);
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