--- /dev/null
+/*
+ * 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 <dispatch/dispatch.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);
+ }
+ }
+
+ pthread_mutex_lock(&_sl_lock);
+
+ /* open syslog ASL client if required */
+ if (_sl_asl == NULL)
+ {
+ _sl_asl = asl_open(NULL, NULL, ASL_OPT_SYSLOG_LEGACY);
+ _sl_mask = ASL_FILTER_MASK_UPTO(ASL_LEVEL_DEBUG);
+ asl_set_filter(_sl_asl, _sl_mask);
+ }
+
+ asl_vlog(_sl_asl, facmsg, LOG_PRI(pri), fmt, ap);
+
+ pthread_mutex_unlock(&_sl_lock);
+
+ 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 */
+ asl_close(_sl_asl);
+ _sl_asl = 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;
+
+ if (mask == 0) return _sl_mask;
+
+ 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 */
projects / apple / syslog.git / blobdiff