xref: /freebsd/usr.bin/procstat/procstat_bin.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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/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 
41 void
42 procstat_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