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. 32 * 33 * $Id$ 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1988, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 static char sccsid[] = "@(#)kill.c 8.3 (Berkeley) 4/2/94"; 44 #endif /* not lint */ 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <errno.h> 49 #include <signal.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 54 void nosig __P((char *)); 55 void printsig __P((FILE *)); 56 void usage __P((void)); 57 58 int 59 main(argc, argv) 60 int argc; 61 char *argv[]; 62 { 63 const char *const *p; 64 int errors, numsig, pid; 65 char *ep; 66 67 if (argc < 2) 68 usage(); 69 70 if (!strcmp(*++argv, "-l")) { 71 printsig(stdout); 72 exit(0); 73 } 74 75 numsig = SIGTERM; 76 if (**argv == '-') { 77 ++*argv; 78 if (isalpha(**argv)) { 79 if (!strncasecmp(*argv, "sig", 3)) 80 *argv += 3; 81 for (numsig = NSIG, p = sys_signame + 1; --numsig; ++p) 82 if (!strcasecmp(*p, *argv)) { 83 numsig = p - sys_signame; 84 break; 85 } 86 if (!numsig) 87 nosig(*argv); 88 } else if (isdigit(**argv)) { 89 numsig = strtol(*argv, &ep, 10); 90 if (!*argv || *ep) 91 errx(1, "illegal signal number: %s", *argv); 92 if (numsig <= 0 || numsig > NSIG) 93 nosig(*argv); 94 } else 95 nosig(*argv); 96 ++argv; 97 } 98 99 if (!*argv) 100 usage(); 101 102 for (errors = 0; *argv; ++argv) { 103 pid = strtol(*argv, &ep, 10); 104 if (!*argv || *ep) { 105 warnx("illegal process id: %s", *argv); 106 errors = 1; 107 } else if (kill(pid, numsig) == -1) { 108 warn("%s", *argv); 109 errors = 1; 110 } 111 } 112 exit(errors); 113 } 114 115 void 116 nosig(name) 117 char *name; 118 { 119 120 warnx("unknown signal %s; valid signals:", name); 121 printsig(stderr); 122 exit(1); 123 } 124 125 void 126 printsig(fp) 127 FILE *fp; 128 { 129 const char *const *p; 130 int cnt; 131 132 for (cnt = NSIG, p = sys_signame + 1; --cnt; ++p) { 133 (void)fprintf(fp, "%s ", *p); 134 if (cnt == NSIG / 2) 135 (void)fprintf(fp, "\n"); 136 } 137 (void)fprintf(fp, "\n"); 138 } 139 140 void 141 usage() 142 { 143 144 (void)fprintf(stderr, "usage: kill [-l] [-sig] pid ...\n"); 145 exit(1); 146 } 147