/* $OpenBSD: kill.c,v 1.8 2003/07/29 00:24:15 deraadt Exp $ */ /* $NetBSD: kill.c,v 1.11 1995/09/07 06:30:27 jtc Exp $ */ /* * Copyright (c) 1988, 1993, 1994 * The Regents of the University of California. All rights reserved. * * 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. 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 static char copyright[] = "@(#) Copyright (c) 1988, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)kill.c 8.4 (Berkeley) 4/28/95"; #else static char rcsid[] = "$OpenBSD: kill.c,v 1.8 2003/07/29 00:24:15 deraadt Exp $"; #endif #endif /* not lint */ #include <ctype.h> #include <err.h> #include <errno.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> extern char *__progname; void nosig(char *); void printsignals(FILE *); int signame_to_signum(char *); void usage(void); int main(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 (*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(char *sig) { int n; if (!strncasecmp(sig, "sig", 3)) sig += 3; for (n = 1; n < NSIG; n++) { if (!strcasecmp(sys_signame[n], sig)) return (n); } return (-1); } void nosig(char *name) { warnx("unknown signal %s; valid signals:", name); printsignals(stderr); exit(1); } void printsignals(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) { (void)fprintf(stderr, "usage: %s [-s signal_name] pid ...\n", __progname); (void)fprintf(stderr, " %s -l [exit_status]\n", __progname); (void)fprintf(stderr, " %s -signal_name pid ...\n", __progname); (void)fprintf(stderr, " %s -signal_number pid ...\n", __progname); exit(1); }