incubator-nuttx/libs/libc/obstack/lib_obstack_copy.c

81 lines
3.0 KiB
C
Raw Normal View History

2022-08-31 22:23:48 +08:00
/****************************************************************************
* libs/libc/obstack/lib_obstack_copy.c
*
* SPDX-License-Identifier: Apache-2.0
*
2022-08-31 22:23:48 +08:00
* 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 <obstack.h>
#include <string.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: obstack_copy
*
* Description:
* Allocate an object of given size with contents copied from address.
* The same remarks regarding the allocation apply here as for
* obstack_alloc.
*
* Input Parameters:
* h: pointer to the handle to allocate an object in
* address: pointer to the bytes to be used to initialize new object
* size: number of bytes to allocate
*
****************************************************************************/
FAR void *obstack_copy(FAR struct obstack *h,
FAR const void *address, size_t size)
{
FAR void *res = obstack_alloc(h, size);
memcpy(res, address, size);
return res;
}
/****************************************************************************
* Name: obstack_copy0
*
* Description:
* Allocate an object of given size+1 with contents copied from address and
* append null byte at the end.
* The same remarks regarding the allocation apply here as for
* obstack_alloc.
*
* Input Parameters:
* h: pointer to the handle to allocate an object in
* address: pointer to the bytes to be used to initialize new object
* size: number of bytes to allocate (excluding the null byte)
*
****************************************************************************/
FAR void *obstack_copy0(FAR struct obstack *h,
FAR const void *address, size_t size)
{
FAR char *res = obstack_alloc(h, size + 1);
memcpy(res, address, size);
res[size] = '\0';
return res;
}