72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*-
|
|
* Copyright (c) 2009 Ulf Lilleengen
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/user.h>
|
|
#include <sys/sysctl.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "libutil.h"
|
|
|
|
struct kinfo_proc *
|
|
kinfo_getproc(pid_t pid)
|
|
{
|
|
struct kinfo_proc *kipp;
|
|
int mib[4];
|
|
size_t len;
|
|
|
|
len = 0;
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_PROC;
|
|
mib[2] = KERN_PROC_PID;
|
|
mib[3] = pid;
|
|
if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0)
|
|
return (NULL);
|
|
|
|
kipp = malloc(len);
|
|
if (kipp == NULL)
|
|
return (NULL);
|
|
|
|
if (sysctl(mib, 4, kipp, &len, NULL, 0) < 0)
|
|
goto bad;
|
|
if (len != sizeof(*kipp))
|
|
goto bad;
|
|
if (kipp->ki_structsize != sizeof(*kipp))
|
|
goto bad;
|
|
if (kipp->ki_pid != pid)
|
|
goto bad;
|
|
return (kipp);
|
|
bad:
|
|
free(kipp);
|
|
return (NULL);
|
|
}
|