procstat_bin.c revision 174530 
1/*-
2 * Copyright (c) 2007 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.bin/procstat/procstat_bin.c 174530 2007-12-10 20:55:43Z rwatson $
27 */
28
29#include <sys/types.h>
30#include <sys/sysctl.h>
31#include <sys/user.h>
32
33#include <err.h>
34#include <errno.h>
35#include <limits.h>
36#include <stdio.h>
37#include <string.h>
38
39#include "procstat.h"
40
41void
42procstat_bin(pid_t pid, struct kinfo_proc *kipp)
43{
44	char pathname[PATH_MAX];
45	int error, name[4];
46	size_t len;
47
48	if (!hflag)
49		printf("%5s %-16s %-53s\n", "PID", "COMM", "PATH");
50
51	name[0] = CTL_KERN;
52	name[1] = KERN_PROC;
53	name[2] = KERN_PROC_PATHNAME;
54	name[3] = pid;
55
56	len = sizeof(pathname);
57	error = sysctl(name, 4, pathname, &len, NULL, 0);
58	if (error < 0 && errno != ESRCH) {
59		warn("sysctl: kern.proc.pathname: %d", pid);
60		return;
61	}
62	if (error < 0)
63		return;
64	if (len == 0 || strlen(pathname) == 0)
65		strcpy(pathname, "-");
66
67	printf("%5d ", pid);
68	printf("%-16s ", kipp->ki_comm);
69	printf("%s\n", pathname);
70}
71