nuttx/libs/libc/stdio/lib_vsscanf.c

57 lines
2.0 KiB
C

/****************************************************************************
* libs/libc/stdio/lib_vsscanf.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <nuttx/streams.h>
#include "libc.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: vsscanf
****************************************************************************/
int vsscanf(FAR const char *buf, FAR const IPTR char *fmt, va_list ap)
{
struct lib_meminstream_s meminstream;
int n;
/* Initialize a memory stream to freadm from the buffer */
lib_meminstream((FAR struct lib_meminstream_s *)&meminstream, buf,
LIB_BUFLEN_UNKNOWN);
/* Then let lib_vscanf do the real work */
n = lib_vscanf((FAR struct lib_instream_s *)&meminstream.common, NULL,
fmt, ap);
return n;
}