nuttx/libs/libc/stdio/lib_gets.c
Xiang Xiao cd74a1df22 libc/stdio: Make gets/gets_s work without CONFIG_FILE_STREAM
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-02-24 10:39:48 +08:00

68 lines
2.5 KiB
C

/****************************************************************************
* libs/libc/stdio/lib_gets.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 <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include "libc.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: gets
*
* Description:
* gets() reads a line from stdin into the buffer pointed to by s until
* either a terminating newline or EOF, which it replaces with '\0'. No
* check for buffer overrun is performed
*
* This API should not be used because it is inherently unsafe. Consider
* using fgets which is safer and slightly more efficient.
*
****************************************************************************/
FAR char *gets(FAR char *s)
{
/* Let lib_fgets() do the heavy lifting */
#ifdef CONFIG_FILE_STREAM
return lib_fgets(s, SIZE_MAX, stdin, false, false);
#else
return lib_dgets(s, SIZE_MAX, STDIN_FILENO, false, false);
#endif
}