xref: /freebsd/usr.bin/procstat/procstat_args.c (revision fe6060f10f634930ff71b7c50291ddc610da2475)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2007 Robert N. M. Watson
5  * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/sysctl.h>
35 #include <sys/user.h>
36 
37 #include <err.h>
38 #include <errno.h>
39 #include <libprocstat.h>
40 #include <limits.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 
45 #include "procstat.h"
46 
47 void
48 procstat_args(struct procstat *procstat, struct kinfo_proc *kipp)
49 {
50 	int i;
51 	char **args;
52 
53 	if ((procstat_opts & PS_OPT_NOHEADER) == 0) {
54 		xo_emit("{T:/%5s %-16s %-53s}\n", "PID", "COMM", "ARGS");
55 	}
56 
57 	args = procstat_getargv(procstat, kipp, 0);
58 
59 	xo_emit("{k:process_id/%5d/%d} {:command/%-16s/%s}", kipp->ki_pid,
60 	    kipp->ki_comm);
61 
62 	if (args == NULL) {
63 		xo_emit(" {d:args/-}\n");
64 		return;
65 	}
66 
67 	xo_open_list("arguments");
68 	for (i = 0; args[i] != NULL; i++)
69 		xo_emit(" {l:args/%s}", args[i]);
70 	xo_close_list("arguments");
71 	xo_emit("\n");
72 }
73 
74 void
75 procstat_env(struct procstat *procstat, struct kinfo_proc *kipp)
76 {
77 	int i;
78 	char **envs;
79 
80 	if ((procstat_opts & PS_OPT_NOHEADER) == 0) {
81 		xo_emit("{T:/%5s %-16s %-53s}\n", "PID", "COMM", "ENVIRONMENT");
82 	}
83 
84 	envs = procstat_getenvv(procstat, kipp, 0);
85 
86 	xo_emit("{k:process_id/%5d/%d} {:command/%-16s/%s}", kipp->ki_pid,
87 	    kipp->ki_comm);
88 
89 	if (envs == NULL) {
90 		xo_emit(" {d:env/-}\n");
91 		return;
92 	}
93 
94 	xo_open_list("environment");
95 	for (i = 0; envs[i] != NULL; i++)
96 		xo_emit(" {l:env/%s}", envs[i]);
97 	xo_close_list("environment");
98 	xo_emit("\n");
99 }
100