103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/****************************************************************************
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* libs/libc/syslog/lib_syslog.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdarg.h>
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#include <syslog.h>
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#include <nuttx/syslog/syslog.h>
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#include "syslog/syslog.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: vsyslog
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*
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* Description:
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* The function vsyslog() performs the same task as syslog() with the
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* difference that it takes a set of arguments which have been obtained
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* using the stdarg variable argument list macros.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void vsyslog(int priority, FAR const IPTR char *fmt, va_list ap)
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{
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/* Check if this priority is enabled */
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if ((g_syslog_mask & LOG_MASK(priority)) != 0)
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{
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/* Yes.. Perform the nx_vsyslog system call.
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*
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* NOTE: The va_list parameter is passed by reference. That is
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* because the va_list is a structure in some compilers and passing
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* of structures in the NuttX syscalls does not work.
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*/
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#ifdef va_copy
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va_list copy;
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va_copy(copy, ap);
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nx_vsyslog(priority, fmt, ©);
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va_end(copy);
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#else
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nx_vsyslog(priority, fmt, &ap);
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#endif
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}
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}
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/****************************************************************************
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* Name: syslog
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*
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* Description:
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* syslog() generates a log message. The priority argument is formed by
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* ORing the facility and the level values (see include/syslog.h). The
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* remaining arguments are a format, as in printf and any arguments to the
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* format.
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*
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* The NuttX implementation does not support any special formatting
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* characters beyond those supported by printf.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void syslog(int priority, FAR const IPTR char *fmt, ...)
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{
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va_list ap;
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/* Let vsyslog do the work */
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va_start(ap, fmt);
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vsyslog(priority, fmt, ap);
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va_end(ap);
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}
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