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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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
29 * @(#) Copyright (c) 1988, 1993, 1994 The Regents of the University of California. All rights reserved.
30 * @(#)kill.c 8.4 (Berkeley) 4/28/95
31 * $FreeBSD: src/bin/kill/kill.c,v 1.24 2011/02/04 16:40:50 jilles Exp $
44 #include "bltin/bltin.h"
48 static void nosig(const char *);
49 static void printsignals(FILE *);
50 static int signame_to_signum(const char *);
51 static void usage(void);
54 main(int argc, char **argv)
66 if (strcmp(*argv, "-l") == 0) {
73 numsig = strtol(*argv, &ep, 10);
74 if (**argv == '\0' || *ep != '\0')
75 errx(2, "illegal signal number: %s", *argv);
78 if (numsig <= 0 || numsig >= sys_nsig)
80 printf("%s\n", sys_signame[numsig]);
87 if (strcmp(*argv, "-s") == 0) {
90 warnx("option requires an argument -- s");
93 if (strcmp(*argv, "0") != 0) {
94 if ((numsig = signame_to_signum(*argv)) < 0)
99 } else if (**argv == '-' && *(*argv + 1) != '-') {
101 if (isalpha(**argv)) {
102 if ((numsig = signame_to_signum(*argv)) < 0)
104 } else if (isdigit(**argv)) {
105 numsig = strtol(*argv, &ep, 10);
106 if (**argv == '\0' || *ep != '\0')
107 errx(2, "illegal signal number: %s", *argv);
115 if (argc > 0 && strncmp(*argv, "--", 2) == 0)
121 for (errors = 0; argc; argc--, argv++) {
124 pid = killjob(*argv, numsig);
128 pid = (pid_t)strtol(*argv, &ep, 10);
129 if (**argv == '\0' || *ep != '\0')
130 errx(2, "illegal process id: %s", *argv);
132 if (kill(pid, numsig) == -1) {
142 signame_to_signum(const char *sig)
146 if (strncasecmp(sig, "SIG", 3) == 0)
148 for (n = 1; n < sys_nsig; n++) {
149 if (strcasecmp(sys_signame[n], sig) == 0)
156 nosig(const char *name)
158 warnx("unknown signal %s; valid signals:", name);
159 printsignals(stderr);
168 printsignals(FILE *fp)
172 for (n = 1; n < sys_nsig; n++) {
173 fprintf(fp, "%s", sys_signame[n]);
174 if (n == (sys_nsig / 2) || n == (sys_nsig - 1))
184 fprintf(stderr, "%s\n%s\n%s\n%s\n",
185 "usage: kill [-s signal_name] pid ...",
186 " kill -l [exit_status]",
187 " kill -signal_name pid ...",
188 " kill -signal_number pid ...");