1 /* $OpenBSD: psignal.c,v 1.10 2015/08/31 02:53:57 guenther 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 void 43 psignal(unsigned int sig, const char *s) 44 { 45 static char buf[NL_TEXTMAX]; 46 const char *c; 47 struct iovec iov[4]; 48 int niov = 0; 49 50 c = __strsignal(sig, buf); 51 if (s && *s) { 52 iov[0].iov_base = (void *)s; 53 iov[0].iov_len = strlen(s); 54 iov[1].iov_base = ": "; 55 iov[1].iov_len = 2; 56 niov = 2; 57 } 58 iov[niov].iov_base = (void *)c; 59 iov[niov].iov_len = strlen(c); 60 iov[niov+1].iov_base = "\n"; 61 iov[niov+1].iov_len = 1; 62 (void)writev(STDERR_FILENO, iov, niov+2); 63 } 64