82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/****************************************************************************
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* drivers/syslog/vlowsyslog.c
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*
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* Copyright (C) 2007-2009, 2011-2012, 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <stdio.h>
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#include <syslog.h>
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#include <nuttx/streams.h>
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#include <nuttx/syslog/syslog.h>
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#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_SYSLOG)
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/* The low-level SYSLOG functions can be used only if we have access to
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* either the low-level serial interface, up_putc(), and to syslog_putc()
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*/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: _vlowsyslog
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*
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* Description:
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* _vlowsyslog() handles the system logging system calls. It is functionally
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* equivalent to vlowsyslog() except that the pre-process priority filtering
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* has already been performed and, hence, there is no priority argument.
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*
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****************************************************************************/
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int _vlowsyslog(FAR const IPTR char *fmt, va_list ap)
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{
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struct lib_outstream_s stream;
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/* Wrap the stdout in a stream object and let lib_vsprintf do the work. */
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#ifdef CONFIG_SYSLOG
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syslogstream((FAR struct lib_outstream_s *)&stream);
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#else
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lib_lowoutstream((FAR struct lib_outstream_s *)&stream);
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#endif
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return lib_vsprintf((FAR struct lib_outstream_s *)&stream, fmt, ap);
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}
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#endif /* CONFIG_ARCH_LOWPUTC || CONFIG_SYSLOG */
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