2 * Copyright (c) 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1988, 1993, 1994 The Regents of the University of California. All rights reserved.
34 * @(#)kill.c 8.4 (Berkeley) 4/28/95
35 * $FreeBSD: src/bin/kill/kill.c,v 1.11.2.2 2002/07/28 10:19:57 tjr Exp $
36 * $DragonFly: src/bin/kill/kill.c,v 1.7 2005/03/05 19:41:38 liamfoy Exp $
49 #include "bltin/bltin.h"
53 static void nosig(const char *);
54 static void printsignals(FILE *);
55 static int signame_to_signum(const char *);
56 static void usage(void);
59 main(int argc, char **argv)
71 if (strcmp(*argv, "-l") == 0) {
78 numsig = strtol(*argv, &ep, 10);
79 if (**argv == '\0' || *ep != '\0')
80 errx(2, "illegal signal number: %s", *argv);
83 if (numsig <= 0 || numsig >= sys_nsig)
85 printf("%s\n", sys_signame[numsig]);
92 if (strcmp(*argv, "-s") == 0) {
95 warnx("option requires an argument -- s");
98 if (strcmp(*argv, "0") != 0) {
99 if ((numsig = signame_to_signum(*argv)) < 0)
104 } else if (**argv == '-' && *(*argv + 1) != '-') {
106 if (isalpha(**argv)) {
107 if ((numsig = signame_to_signum(*argv)) < 0)
109 } else if (isdigit(**argv)) {
110 numsig = strtol(*argv, &ep, 10);
111 if (**argv == '\0' || *ep != '\0')
112 errx(2, "illegal signal number: %s", *argv);
113 if (numsig < 0 || numsig >= sys_nsig)
120 if (argc > 0 && strncmp(*argv, "--", 2) == 0)
126 for (errors = 0; argc; argc--, argv++) {
129 pid = getjobpgrp(*argv);
133 pid = (pid_t)strtol(*argv, &ep, 10);
134 if (**argv == '\0' || *ep != '\0') {
135 warnx("illegal process id: %s", *argv);
139 if (kill(pid, numsig) == -1) {
149 signame_to_signum(const char *sig)
153 if (strncasecmp(sig, "sig", 3) == 0)
155 for (n = 1; n < sys_nsig; n++) {
156 if (strcasecmp(sys_signame[n], sig) == 0)
163 nosig(const char *name)
165 warnx("unknown signal %s; valid signals:", name);
166 printsignals(stderr);
175 printsignals(FILE *fp)
179 for (n = 1; n < sys_nsig; n++) {
180 fprintf(fp, "%s", sys_signame[n]);
181 if (n == (sys_nsig / 2) || n == (sys_nsig - 1))
191 fprintf(stderr, "%s\n%s\n%s\n%s\n",
192 "usage: kill [-s signal_name] pid ...",
193 " kill -l [exit_status]",
194 " kill -signal_name pid ...",
195 " kill -signal_number pid ...");