/* * Copyright (c) 1999-2010 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/syslog.h> #include <stdlib.h> #include <string.h> #include <stdint.h> #include <pthread.h> #include <asl.h> #include "asl_private.h" #ifdef __STDC__ #include <stdarg.h> #else #include <varargs.h> #endif #define LOG_NO_NOTIFY 0x1000 extern const char *asl_syslog_faciliy_num_to_name(int n); #ifdef BUILDING_VARIANT __private_extern__ pthread_mutex_t _sl_lock; __private_extern__ aslclient _sl_asl; __private_extern__ char *_sl_ident; __private_extern__ int _sl_fac; __private_extern__ int _sl_opts; __private_extern__ int _sl_mask; #else /* !BUILDING_VARIANT */ __private_extern__ pthread_mutex_t _sl_lock = PTHREAD_MUTEX_INITIALIZER; __private_extern__ aslclient _sl_asl = NULL; __private_extern__ char *_sl_ident = NULL; __private_extern__ int _sl_fac = 0; __private_extern__ int _sl_opts = 0; __private_extern__ int _sl_mask = 0; #endif /* BUILDING_VARIANT */ /* * syslog, vsyslog -- * print message on log file; output is intended for syslogd(8). */ void #ifdef __STDC__ syslog(int pri, const char *fmt, ...) #else syslog(pri, fmt, va_alist) int pri; char *fmt; va_dcl #endif { va_list ap; #ifdef __STDC__ va_start(ap, fmt); #else va_start(ap); #endif vsyslog(pri, fmt, ap); va_end(ap); } void vsyslog(int pri, const char *fmt, va_list ap) { int fac; aslmsg facmsg; const char *facility; facmsg = NULL; fac = pri & LOG_FACMASK; if (fac != 0) { facility = asl_syslog_faciliy_num_to_name(fac); if (facility != NULL) { facmsg = asl_new(ASL_TYPE_MSG); asl_set(facmsg, ASL_KEY_FACILITY, facility); } } asl_vlog(_sl_asl, facmsg, LOG_PRI(pri), fmt, ap); if (facmsg != NULL) asl_free(facmsg); } #ifndef BUILDING_VARIANT void openlog(const char *ident, int opts, int logfac) { const char *facility; uint32_t asl_opts; pthread_mutex_lock(&_sl_lock); /* close existing aslclient */ if (_sl_asl != NULL) asl_close(_sl_asl); _sl_asl = NULL; if (_sl_ident != NULL) free(_sl_ident); _sl_ident = NULL; /* open with specified parameters */ if (ident != NULL) _sl_ident = strdup(ident); /* NB we allow the strdup to fail silently */ _sl_fac = logfac; facility = asl_syslog_faciliy_num_to_name(_sl_fac); _sl_opts = opts; asl_opts = ASL_OPT_SYSLOG_LEGACY; if (_sl_opts & LOG_NO_NOTIFY) asl_opts |= ASL_OPT_NO_REMOTE; if (_sl_opts & LOG_PERROR) asl_opts |= ASL_OPT_STDERR; _sl_mask = ASL_FILTER_MASK_UPTO(ASL_LEVEL_DEBUG); _sl_asl = asl_open(_sl_ident, facility, asl_opts); asl_set_filter(_sl_asl, _sl_mask); pthread_mutex_unlock(&_sl_lock); } void closelog() { pthread_mutex_lock(&_sl_lock); if (_sl_asl != NULL) asl_close(_sl_asl); _sl_asl = NULL; if (_sl_ident != NULL) free(_sl_ident); _sl_ident = NULL; pthread_mutex_unlock(&_sl_lock); } /* setlogmask -- set the log mask level */ int setlogmask(int mask) { int oldmask; pthread_mutex_lock(&_sl_lock); _sl_mask = mask; oldmask = asl_set_filter(_sl_asl, mask); pthread_mutex_unlock(&_sl_lock); return oldmask; } #endif /* !BUILDING_VARIANT */