#ifndef lint
static char const copyright[] =
"@(#) Copyright (c) 1988, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif
#ifndef lint
#if 0
static char sccsid[] = "@(#)kill.c 8.4 (Berkeley) 4/28/95";
#endif
static const char rcsid[] =
"$FreeBSD: src/bin/kill/kill.c,v 1.11.2.1 2001/08/01 02:42:56 obrien Exp $";
#endif
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main __P((int, char *[]));
void nosig __P((char *));
void printsignals __P((FILE *));
int signame_to_signum __P((char *));
void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
int errors, numsig, pid;
char *ep;
if (argc < 2)
usage();
numsig = SIGTERM;
argc--, argv++;
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);
}
printsignals(stdout);
exit(0);
}
if (!strcmp(*argv, "-s")) {
argc--, argv++;
if (argc < 1) {
warnx("option requires an argument -- s");
usage();
}
if (strcmp(*argv, "0")) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else
numsig = 0;
argc--, argv++;
} else if (**argv == '-') {
++*argv;
if (isalpha(**argv)) {
if ((numsig = signame_to_signum(*argv)) < 0)
nosig(*argv);
} else if (isdigit(**argv)) {
numsig = strtol(*argv, &ep, 10);
if (!**argv || *ep)
errx(1, "illegal signal number: %s", *argv);
if (numsig < 0 || numsig >= NSIG)
nosig(*argv);
} else
nosig(*argv);
argc--, argv++;
}
if (argc == 0)
usage();
for (errors = 0; argc; argc--, argv++) {
pid = strtol(*argv, &ep, 10);
if (!**argv || *ep) {
warnx("illegal process id: %s", *argv);
errors = 1;
} else if (kill(pid, numsig) == -1) {
warn("%s", *argv);
errors = 1;
}
}
exit(errors);
}
int
signame_to_signum(sig)
char *sig;
{
int n;
if (!strncasecmp(sig, "sig", (size_t)3))
sig += 3;
for (n = 1; n < NSIG; n++) {
if (!strcasecmp(sys_signame[n], sig))
return (n);
}
return (-1);
}
void
nosig(name)
char *name;
{
warnx("unknown signal %s; valid signals:", name);
printsignals(stderr);
exit(1);
}
void
printsignals(fp)
FILE *fp;
{
int n;
for (n = 1; n < NSIG; n++) {
(void)fprintf(fp, "%s", sys_signame[n]);
if (n == (NSIG / 2) || n == (NSIG - 1))
(void)fprintf(fp, "\n");
else
(void)fprintf(fp, " ");
}
}
void
usage()
{
(void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
"usage: kill [-s signal_name] pid ...",
" kill -l [exit_status]",
" kill -signal_name pid ...",
" kill -signal_number pid ...");
exit(1);
}