libcsupport/src/print_printf.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  *  @file
0005  *
0006  *  @brief RTEMS Print Support
0007  *  @ingroup libcsupport
0008  */
0009
0010 /*
0011  * Copyright (c) 2016 Chris Johns <chrisj@rtems.org>
0012  * All rights reserved.
0013  *
0014  * Redistribution and use in source and binary forms, with or without
0015  * modification, are permitted provided that the following conditions
0016  * are met:
0017  * 1. Redistributions of source code must retain the above copyright
0018  *    notice, this list of conditions and the following disclaimer.
0019  * 2. Redistributions in binary form must reproduce the above copyright
0020  *    notice, this list of conditions and the following disclaimer in the
0021  *    documentation and/or other materials provided with the distribution.
0022  *
0023  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0024  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0025  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0026  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0027  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0028  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0029  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0030  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0031  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0032  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0033  * POSSIBILITY OF SUCH DAMAGE.
0034  */
0035
0036 #ifdef HAVE_CONFIG_H
0037 #include "config.h"
0038 #endif
0039
0040 #include <rtems/printer.h>
0041
0042 int rtems_vprintf(
0043   const rtems_printer *printer,
0044   const char          *format,
0045   va_list              ap
0046 )
0047 {
0048   int len = 0;
0049   if ( rtems_print_printer_valid( printer ) ) {
0050     len = printer->printer( printer->context, format, ap );
0051   }
0052   return len;
0053 }
0054
0055 int rtems_printf(
0056   const rtems_printer *printer,
0057   const char          *format,
0058   ...
0059 )
0060 {
0061   int len = 0;
0062   if ( rtems_print_printer_valid( printer ) ) {
0063     va_list ap;
0064     va_start( ap, format );
0065     len = printer->printer( printer->context, format, ap );
0066     va_end( ap );
0067   }
0068   return len;
0069 }