procstat_sigs.c revision 357519 
1/*-
2 * Copyright (c) 2010 Konstantin Belousov
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: stable/10/usr.bin/procstat/procstat_sigs.c 357519 2020-02-04 19:31:01Z dim $
27 */
28
29#include <sys/param.h>
30#include <sys/sysctl.h>
31#include <sys/user.h>
32
33#include <ctype.h>
34#include <err.h>
35#include <errno.h>
36#include <signal.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40#include <libprocstat.h>
41
42#include "procstat.h"
43
44static void
45procstat_print_signame(int sig)
46{
47	char name[12];
48	int i;
49
50	if (!nflag && sig < sys_nsig) {
51		strlcpy(name, sys_signame[sig], sizeof(name));
52		for (i = 0; name[i] != 0; i++)
53			name[i] = toupper(name[i]);
54		printf("%-7s ", name);
55	} else {
56		printf("%-7d ", sig);
57	}
58}
59
60static void
61procstat_print_sig(const sigset_t *set, int sig, char flag)
62{
63
64	printf("%c", sigismember(set, sig) ? flag : '-');
65}
66
67void
68procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp)
69{
70	int j;
71	pid_t pid;
72
73	pid = kipp->ki_pid;
74	if (!hflag)
75		printf("%5s %-16s %-7s %4s\n", "PID", "COMM", "SIG", "FLAGS");
76
77	for (j = 1; j <= _SIG_MAXSIG; j++) {
78		printf("%5d ", pid);
79		printf("%-16s ", kipp->ki_comm);
80		procstat_print_signame(j);
81		printf(" ");
82		procstat_print_sig(&kipp->ki_siglist, j, 'P');
83		procstat_print_sig(&kipp->ki_sigignore, j, 'I');
84		procstat_print_sig(&kipp->ki_sigcatch, j, 'C');
85		printf("\n");
86	}
87}
88
89void
90procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp)
91{
92	struct kinfo_proc *kip;
93	pid_t pid;
94	int j;
95	unsigned int count, i;
96
97	pid = kipp->ki_pid;
98	if (!hflag)
99		printf("%5s %6s %-16s %-7s %4s\n", "PID", "TID", "COMM",
100		     "SIG", "FLAGS");
101
102	kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD,
103	    pid, &count);
104	if (kip == NULL)
105		return;
106	kinfo_proc_sort(kip, count);
107	for (i = 0; i < count; i++) {
108		kipp = &kip[i];
109		for (j = 1; j <= _SIG_MAXSIG; j++) {
110			printf("%5d ", pid);
111			printf("%6d ", kipp->ki_tid);
112			printf("%-16s ", kipp->ki_comm);
113			procstat_print_signame(j);
114			printf(" ");
115			procstat_print_sig(&kipp->ki_siglist, j, 'P');
116			procstat_print_sig(&kipp->ki_sigmask, j, 'B');
117			printf("\n");
118		}
119	}
120	procstat_freeprocs(procstat, kip);
121}
122