NetBSD/bin/kill/kill.c

193 lines
4.7 KiB
C
Raw Normal View History

1995-09-07 10:28:39 +04:00
/* $NetBSD: kill.c,v 1.11 1995/09/07 06:30:27 jtc Exp $ */
1995-03-21 12:01:59 +03:00
1993-03-21 12:45:37 +03:00
/*
1994-09-22 13:24:46 +04:00
* Copyright (c) 1988, 1993, 1994
* The Regents of the University of California. All rights reserved.
1993-03-21 12:45:37 +03:00
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
1994-09-22 13:24:46 +04:00
static char copyright[] =
"@(#) Copyright (c) 1988, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
1993-03-21 12:45:37 +03:00
#endif /* not lint */
#ifndef lint
1995-03-21 12:01:59 +03:00
#if 0
1995-09-07 10:28:39 +04:00
static char sccsid[] = "@(#)kill.c 8.4 (Berkeley) 4/28/95";
1995-03-21 12:01:59 +03:00
#else
1995-09-07 10:28:39 +04:00
static char rcsid[] = "$NetBSD: kill.c,v 1.11 1995/09/07 06:30:27 jtc Exp $";
1995-03-21 12:01:59 +03:00
#endif
1993-03-21 12:45:37 +03:00
#endif /* not lint */
1994-09-22 13:24:46 +04:00
#include <ctype.h>
#include <err.h>
1993-03-21 12:45:37 +03:00
#include <errno.h>
1994-09-22 13:24:46 +04:00
#include <signal.h>
1993-03-21 12:45:37 +03:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
1994-09-22 13:24:46 +04:00
void nosig __P((char *));
void printsignals __P((FILE *));
int signame_to_signum __P((char *));
void usage __P((void));
int
1993-03-21 12:45:37 +03:00
main(argc, argv)
int argc;
1994-09-22 13:24:46 +04:00
char *argv[];
1993-03-21 12:45:37 +03:00
{
1994-09-22 13:24:46 +04:00
int errors, numsig, pid;
1993-03-21 12:45:37 +03:00
char *ep;
if (argc < 2)
usage();
numsig = SIGTERM;
1994-09-22 13:24:46 +04:00
1993-07-22 20:42:16 +04:00
argc--, argv++;
1994-09-22 13:24:46 +04:00
if (!strcmp(*argv, "-l")) {
argc--, argv++;
if (argc > 1)
usage();
if (argc == 1) {
if (!isdigit(**argv))
usage();
numsig = strtol(*argv, &ep, 10);
if (!*argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig >= 128)
numsig -= 128;
if (numsig <= 0 || numsig >= NSIG)
nosig(*argv);
printf("%s\n", sys_signame[numsig]);
exit(0);
1993-07-22 20:42:16 +04:00
}
printsignals(stdout);
exit(0);
1994-09-22 13:24:46 +04:00
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
1993-07-22 20:42:16 +04:00
usage();
}
1994-09-22 13:24:46 +04:00
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
1993-07-22 20:42:16 +04:00
nosig(*argv);
1994-09-22 13:24:46 +04:00
} else
numsig = 0;
argc--, argv++;
1993-07-22 20:42:16 +04:00
} else if (**argv == '-') {
1993-03-21 12:45:37 +03:00
++*argv;
if (isalpha(**argv)) {
1994-09-22 13:24:46 +04:00
if ((numsig = signame_to_signum(*argv)) < 0)
1993-07-22 20:42:16 +04:00
nosig(*argv);
1993-03-21 12:45:37 +03:00
} else if (isdigit(**argv)) {
numsig = strtol(*argv, &ep, 10);
1994-09-22 13:24:46 +04:00
if (!*argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig < 0 || numsig >= NSIG)
1993-03-21 12:45:37 +03:00
nosig(*argv);
} else
nosig(*argv);
1994-09-22 13:24:46 +04:00
argc--, argv++;
1993-03-21 12:45:37 +03:00
}
1994-09-22 13:24:46 +04:00
if (argc == 0)
1993-03-21 12:45:37 +03:00
usage();
1994-09-22 13:24:46 +04:00
for (errors = 0; argc; argc--, argv++) {
1993-03-21 12:45:37 +03:00
pid = strtol(*argv, &ep, 10);
if (!*argv || *ep) {
1994-09-22 13:24:46 +04:00
warnx("illegal process id: %s", *argv);
errors = 1;
} else if (kill(pid, numsig) == -1) {
warn("%s", *argv);
1993-03-21 12:45:37 +03:00
errors = 1;
}
}
1994-09-22 13:24:46 +04:00
1993-03-21 12:45:37 +03:00
exit(errors);
}
1993-07-22 20:42:16 +04:00
int
1994-09-22 13:24:46 +04:00
signame_to_signum(sig)
1993-07-22 20:42:16 +04:00
char *sig;
{
1993-08-07 01:25:21 +04:00
int n;
1993-07-22 20:42:16 +04:00
if (!strncasecmp(sig, "sig", 3))
sig += 3;
1993-08-07 01:25:21 +04:00
for (n = 1; n < NSIG; n++) {
if (!strcasecmp(sys_signame[n], sig))
1994-09-22 13:24:46 +04:00
return (n);
1993-07-22 20:42:16 +04:00
}
1994-09-22 13:24:46 +04:00
return (-1);
1993-07-22 20:42:16 +04:00
}
1994-09-22 13:24:46 +04:00
void
1993-03-21 12:45:37 +03:00
nosig(name)
char *name;
{
1994-09-22 13:24:46 +04:00
warnx("unknown signal %s; valid signals:", name);
1993-07-22 20:42:16 +04:00
printsignals(stderr);
1993-03-21 12:45:37 +03:00
exit(1);
}
1994-09-22 13:24:46 +04:00
void
1993-07-22 20:42:16 +04:00
printsignals(fp)
1993-03-21 12:45:37 +03:00
FILE *fp;
{
1993-08-07 01:25:21 +04:00
int n;
1994-09-22 13:24:46 +04:00
for (n = 1; n < NSIG; n++) {
(void)fprintf(fp, "%s", sys_signame[n]);
if (n == (NSIG / 2) || n == (NSIG - 1))
(void)fprintf(fp, "\n");
1993-08-07 01:25:21 +04:00
else
(void)fprintf(fp, " ");
1994-09-22 13:24:46 +04:00
}
1993-03-21 12:45:37 +03:00
}
1994-09-22 13:24:46 +04:00
void
1993-03-21 12:45:37 +03:00
usage()
{
1994-09-22 13:24:46 +04:00
1993-07-22 20:42:16 +04:00
(void)fprintf(stderr, "usage: kill [-s signal_name] pid ...\n");
(void)fprintf(stderr, " kill -l [exit_status]\n");
(void)fprintf(stderr, " kill -signal_name pid ...\n");
(void)fprintf(stderr, " kill -signal_number pid ...\n");
1993-03-21 12:45:37 +03:00
exit(1);
}