1 /* $NetBSD: msg.c,v 1.2 2011/02/12 23:21:32 christos Exp $ */ 2 3 /* Copyright (c) 2010 The NetBSD Foundation, Inc. 4 * 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. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the NetBSD 17 * Foundation, Inc. and its contributors. 18 * 4. Neither the name of The NetBSD Foundation nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 #include <sys/cdefs.h> 35 __RCSID("$NetBSD: msg.c,v 1.2 2011/02/12 23:21:32 christos Exp $"); 36 37 #include <stdarg.h> 38 #include <stdio.h> 39 #include <stdlib.h> 40 #include <syslog.h> 41 42 #include "msg.h" 43 44 /** 45 * XXX: global debug flag. This is unique as it is set as early as 46 * possible by checking the environment (looking for SASLC_ENV_DEBUG) 47 * and the context, mechanism, and session dictionaries (looking for 48 * SASLC_PROP_DEBUG) as soon as they become available. Hence, the 49 * lookups are scattered in 4 places. It's ugly. 50 * 51 * It's also global so it isn't tied to a session, but this makes it 52 * easly to use debugging messages as you don't need a context 53 * pointer. 54 */ 55 bool saslc_debug = false; 56 57 /** 58 * @brief conditionally log a message via syslogd 59 * @param flag log the message or not 60 * @param priority syslogd priority to log with 61 * @param fmt message format string 62 * @param ... format parameters 63 */ 64 void 65 saslc__msg_syslog(bool flag, int priority, const char *fmt, ...) 66 { 67 va_list ap; 68 char *tmp; 69 70 if (!flag) 71 return; 72 73 va_start(ap, fmt); 74 if (asprintf(&tmp, "libsaslc: %s", fmt) != -1) { 75 vsyslog(priority, tmp, ap); 76 free(tmp); 77 } 78 va_end(ap); 79 } 80