1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2010 Konstantin Belousov
5 * Copyright (c) 2015 Allan Jude <[email protected]>
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 * $FreeBSD$
30 */
31
32 #include <sys/param.h>
33 #include <sys/sysctl.h>
34 #include <sys/user.h>
35
36 #include <ctype.h>
37 #include <err.h>
38 #include <errno.h>
39 #include <signal.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <libprocstat.h>
44
45 #include "procstat.h"
46
47 static void
procstat_print_signame(int sig)48 procstat_print_signame(int sig)
49 {
50 char name[12];
51 int i;
52
53 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) {
54 strlcpy(name, sys_signame[sig], sizeof(name));
55 for (i = 0; name[i] != 0; i++)
56 name[i] = toupper(name[i]);
57 xo_emit("{d:signal/%-7s/%s} ", name);
58 xo_open_container(name);
59 } else {
60 xo_emit("{d:signal/%-7d/%d} ", sig);
61 snprintf(name, 12, "%d", sig);
62 xo_open_container(name);
63 }
64 }
65
66 static void
procstat_close_signame(int sig)67 procstat_close_signame(int sig)
68 {
69 char name[12];
70 int i;
71
72 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) {
73 strlcpy(name, sys_signame[sig], sizeof(name));
74 for (i = 0; name[i] != 0; i++)
75 name[i] = toupper(name[i]);
76 xo_close_container(name);
77 } else
78 snprintf(name, 12, "%d", sig);
79 xo_close_container(name);
80 }
81
82 static void
procstat_print_sig(const sigset_t * set,int sig,char flag)83 procstat_print_sig(const sigset_t *set, int sig, char flag)
84 {
85 xo_emit("{d:sigmember/%c}", sigismember(set, sig) ? flag : '-');
86 switch (flag) {
87 case 'B':
88 xo_emit("{en:mask/%s}", sigismember(set, sig) ?
89 "true" : "false");
90 break;
91 case 'C':
92 xo_emit("{en:catch/%s}", sigismember(set, sig) ?
93 "true" : "false");
94 break;
95 case 'P':
96 xo_emit("{en:list/%s}", sigismember(set, sig) ?
97 "true" : "false");
98 break;
99 case 'I':
100 xo_emit("{en:ignore/%s}", sigismember(set, sig) ?
101 "true" : "false");
102 break;
103 default:
104 xo_emit("{en:unknown/%s}", sigismember(set, sig) ?
105 "true" : "false");
106 break;
107 }
108 }
109
110 void
procstat_sigs(struct procstat * prstat __unused,struct kinfo_proc * kipp)111 procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp)
112 {
113 int j;
114
115 if ((procstat_opts & PS_OPT_NOHEADER) == 0)
116 xo_emit("{T:/%5s %-16s %-7s %4s}\n", "PID", "COMM", "SIG",
117 "FLAGS");
118
119 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid);
120 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm);
121 xo_open_container("signals");
122 for (j = 1; j <= _SIG_MAXSIG; j++) {
123 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
124 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
125 procstat_print_signame(j);
126 xo_emit(" ");
127 procstat_print_sig(&kipp->ki_siglist, j, 'P');
128 procstat_print_sig(&kipp->ki_sigignore, j, 'I');
129 procstat_print_sig(&kipp->ki_sigcatch, j, 'C');
130 procstat_close_signame(j);
131 xo_emit("\n");
132 }
133 xo_close_container("signals");
134 }
135
136 void
procstat_threads_sigs(struct procstat * procstat,struct kinfo_proc * kipp)137 procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp)
138 {
139 struct kinfo_proc *kip;
140 int j;
141 unsigned int count, i;
142 char *threadid;
143
144 if ((procstat_opts & PS_OPT_NOHEADER) == 0)
145 xo_emit("{T:/%5s %6s %-16s %-7s %4s}\n", "PID", "TID", "COMM",
146 "SIG", "FLAGS");
147
148 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
149 kipp->ki_pid, &count);
150 if (kip == NULL)
151 return;
152 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid);
153 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm);
154 xo_open_container("threads");
155 kinfo_proc_sort(kip, count);
156 for (i = 0; i < count; i++) {
157 kipp = &kip[i];
158 asprintf(&threadid, "%d", kipp->ki_tid);
159 if (threadid == NULL)
160 xo_errc(1, ENOMEM, "Failed to allocate memory in "
161 "procstat_threads_sigs()");
162 xo_open_container(threadid);
163 xo_emit("{e:thread_id/%6d/%d}", kipp->ki_tid);
164 xo_open_container("signals");
165 for (j = 1; j <= _SIG_MAXSIG; j++) {
166 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid);
167 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid);
168 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm);
169 procstat_print_signame(j);
170 xo_emit(" ");
171 procstat_print_sig(&kipp->ki_siglist, j, 'P');
172 procstat_print_sig(&kipp->ki_sigmask, j, 'B');
173 procstat_close_signame(j);
174 xo_emit("\n");
175 }
176 xo_close_container("signals");
177 xo_close_container(threadid);
178 free(threadid);
179 }
180 xo_close_container("threads");
181 procstat_freeprocs(procstat, kip);
182 }
183