mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
![Brooks Davis](/assets/img/avatar_default.png)
These system call wrappers call interposed system calls in fairly trivial ways. Move them over to libsys so all __libsys_interposer consumers end up in libsys. Also move recvmmsg and sendmmsg as they are documented with recv and send. Reviewed by: kib, emaste, imp Pull Request: https://github.com/freebsd/freebsd-src/pull/908
70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2012 Jukka A. Ukkonen
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Jukka Ukkonen for FreeBSD.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "namespace.h"
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <signal.h>
|
|
#include <errno.h>
|
|
#include "un-namespace.h"
|
|
#include "libc_private.h"
|
|
|
|
int __waitid(idtype_t, id_t, siginfo_t *, int);
|
|
|
|
int
|
|
__waitid(idtype_t idtype, id_t id, siginfo_t *info, int flags)
|
|
{
|
|
int status;
|
|
pid_t ret;
|
|
|
|
ret = ((pid_t (*)(idtype_t, id_t, int *, int, struct __wrusage *,
|
|
siginfo_t *))__libsys_interposing[INTERPOS_wait6])(idtype, id,
|
|
&status, flags, NULL, info);
|
|
|
|
/*
|
|
* According to SUSv4, waitid() shall not return a PID when a
|
|
* process is found, but only 0. If a process was actually
|
|
* found, siginfo_t fields si_signo and si_pid will be
|
|
* non-zero. In case WNOHANG was set in the flags and no
|
|
* process was found those fields are set to zero using
|
|
* memset() below.
|
|
*/
|
|
if (ret == 0 && info != NULL)
|
|
memset(info, 0, sizeof(*info));
|
|
else if (ret > 0)
|
|
ret = 0;
|
|
return (ret);
|
|
}
|
|
|
|
__weak_reference(__waitid, waitid);
|
|
__weak_reference(__waitid, _waitid);
|