x86_64: Function renaming lapic_init -> lapic_map
[dragonfly.git] / bin / kill / kill.c
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1/*
2 * Copyright (c) 1988, 1993, 1994
3 * The Regents of the University of California. 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 * 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.
20 *
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
31 * SUCH DAMAGE.
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32 *
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 $
07e80f3b 36 * $DragonFly: src/bin/kill/kill.c,v 1.7 2005/03/05 19:41:38 liamfoy Exp $
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37 */
38
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39#include <ctype.h>
40#include <err.h>
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41#include <signal.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45
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46static void nosig(const char *);
47static void printsignals(FILE *);
48static int signame_to_signum(const char *);
49static void usage(void);
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50
51int
a7825f5c 52main(int argc, char **argv)
984263bc 53{
2848dd31 54 int errors, numsig;
07e80f3b 55 pid_t pid;
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56 char *ep;
57
58 if (argc < 2)
59 usage();
60
61 numsig = SIGTERM;
62
63 argc--, argv++;
a7825f5c 64 if (strcmp(*argv, "-l") == 0) {
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65 argc--, argv++;
66 if (argc > 1)
67 usage();
68 if (argc == 1) {
69 if (!isdigit(**argv))
70 usage();
71 numsig = strtol(*argv, &ep, 10);
a7825f5c 72 if (**argv == '\0' || *ep != '\0')
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73 errx(1, "illegal signal number: %s", *argv);
74 if (numsig >= 128)
75 numsig -= 128;
9f8c5148 76 if (numsig <= 0 || numsig >= sys_nsig)
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77 nosig(*argv);
78 printf("%s\n", sys_signame[numsig]);
79 exit(0);
80 }
81 printsignals(stdout);
82 exit(0);
83 }
84
a7825f5c 85 if (strcmp(*argv, "-s") == 0) {
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86 argc--, argv++;
87 if (argc < 1) {
88 warnx("option requires an argument -- s");
89 usage();
90 }
a7825f5c 91 if (strcmp(*argv, "0") != 0) {
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92 if ((numsig = signame_to_signum(*argv)) < 0)
93 nosig(*argv);
94 } else
95 numsig = 0;
96 argc--, argv++;
97 } else if (**argv == '-' && *(*argv + 1) != '-') {
98 ++*argv;
99 if (isalpha(**argv)) {
100 if ((numsig = signame_to_signum(*argv)) < 0)
101 nosig(*argv);
102 } else if (isdigit(**argv)) {
103 numsig = strtol(*argv, &ep, 10);
a7825f5c 104 if (**argv == '\0' || *ep != '\0')
984263bc 105 errx(1, "illegal signal number: %s", *argv);
9f8c5148 106 if (numsig < 0 || numsig >= sys_nsig)
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107 nosig(*argv);
108 } else
109 nosig(*argv);
110 argc--, argv++;
111 }
112
113 if (argc > 0 && strncmp(*argv, "--", 2) == 0)
114 argc--, argv++;
115
116 if (argc == 0)
117 usage();
118
119 for (errors = 0; argc; argc--, argv++) {
2848dd31 120 pid = (pid_t)strtol(*argv, &ep, 10);
07e80f3b 121 if (**argv == '\0' || *ep != '\0') {
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122 warnx("illegal process id: %s", *argv);
123 errors = 1;
124 } else if (kill(pid, numsig) == -1) {
125 warn("%s", *argv);
126 errors = 1;
127 }
128 }
129
130 exit(errors);
131}
132
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133static int
134signame_to_signum(const char *sig)
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135{
136 int n;
137
07e80f3b 138 if (strncasecmp(sig, "sig", 3) == 0)
984263bc 139 sig += 3;
9f8c5148 140 for (n = 1; n < sys_nsig; n++) {
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141 if (strcasecmp(sys_signame[n], sig) == 0)
142 return(n);
984263bc 143 }
a7825f5c 144 return(-1);
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145}
146
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147static void
148nosig(const char *name)
984263bc 149{
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150 warnx("unknown signal %s; valid signals:", name);
151 printsignals(stderr);
152 exit(1);
153}
154
2848dd31 155static void
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156printsignals(FILE *fp)
157{
158 int n;
159
9f8c5148 160 for (n = 1; n < sys_nsig; n++) {
2848dd31 161 fprintf(fp, "%s", sys_signame[n]);
9f8c5148 162 if (n == (sys_nsig / 2) || n == (sys_nsig - 1))
57fed2af 163 fprintf(fp, "\n");
984263bc 164 else
57fed2af 165 fprintf(fp, " ");
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166 }
167}
168
2848dd31 169static void
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170usage(void)
171{
57fed2af 172 fprintf(stderr, "%s\n%s\n%s\n%s\n",
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173 "usage: kill [-s signal_name] pid ...",
174 " kill -l [exit_status]",
175 " kill -signal_name pid ...",
176 " kill -signal_number pid ...");
177 exit(1);
178}