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