1 /* $OpenBSD: psignal.c,v 1.9 2007/05/17 04:57:31 ray Exp $ */ 2 /* 3 * Copyright (c) 1983, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * Print the name of the signal indicated 33 * along with the supplied message. 34 */ 35 #include <sys/types.h> 36 #include <sys/uio.h> 37 #include <signal.h> 38 #include <string.h> 39 #include <unistd.h> 40 #include <limits.h> 41 42 extern char *__strsignal(int , char *); 43 44 void 45 psignal(unsigned int sig, const char *s) 46 { 47 static char buf[NL_TEXTMAX]; 48 const char *c; 49 struct iovec iov[4]; 50 int niov = 0; 51 52 c = __strsignal(sig, buf); 53 if (s && *s) { 54 iov[0].iov_base = (void *)s; 55 iov[0].iov_len = strlen(s); 56 iov[1].iov_base = ": "; 57 iov[1].iov_len = 2; 58 niov = 2; 59 } 60 iov[niov].iov_base = (void *)c; 61 iov[niov].iov_len = strlen(c); 62 iov[niov+1].iov_base = "\n"; 63 iov[niov+1].iov_len = 1; 64 (void)writev(STDERR_FILENO, iov, niov+2); 65 } 66