xref: /freebsd/usr.bin/procstat/procstat_bin.c (revision 10b59a9b4add0320d52c15ce057dd697261e7dfc)
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  * $FreeBSD$
27  */
28 
29 #include <sys/param.h>
30 #include <sys/sysctl.h>
31 #include <sys/user.h>
32 
33 #include <err.h>
34 #include <errno.h>
35 #include <libprocstat.h>
36 #include <limits.h>
37 #include <stdio.h>
38 #include <string.h>
39 
40 #include "procstat.h"
41 
42 void
43 procstat_bin(struct kinfo_proc *kipp)
44 {
45 	char pathname[PATH_MAX];
46 	int error, name[4];
47 	size_t len;
48 
49 	if (!hflag)
50 		printf("%5s %-16s %-53s\n", "PID", "COMM", "PATH");
51 
52 	name[0] = CTL_KERN;
53 	name[1] = KERN_PROC;
54 	name[2] = KERN_PROC_PATHNAME;
55 	name[3] = kipp->ki_pid;
56 
57 	len = sizeof(pathname);
58 	error = sysctl(name, 4, pathname, &len, NULL, 0);
59 	if (error < 0 && errno != ESRCH) {
60 		warn("sysctl: kern.proc.pathname: %d", kipp->ki_pid);
61 		return;
62 	}
63 	if (error < 0)
64 		return;
65 	if (len == 0 || strlen(pathname) == 0)
66 		strcpy(pathname, "-");
67 
68 	printf("%5d ", kipp->ki_pid);
69 	printf("%-16s ", kipp->ki_comm);
70 	printf("%s\n", pathname);
71 }
72