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libc/lib_bzero:Add bzero prototype.

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Implement the bzero function as an alternative to macro expansion.
This commit is contained in:
chenrun1 2023-02-21 17:19:47 +08:00 committed by Petro Karashchenko
parent 621bf54efc
commit 4f3c73fb45
3 changed files with 43 additions and 5 deletions
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6
include/strings.h
View File

@ -49,10 +49,6 @@
#define bcopy(b1,b2,len) memmove(b2,b1,len)
#endif
#ifndef bzero /* See mm/README.txt */
#define bzero(s,n) memset(s,0,n)
#endif
#define strcasecmp_l(s1, s2, l) strcasecmp(s1, s2)
#define strncasecmp_l(s1, s2, n, l) strncasecmp(s1, s2, n)
@ -95,6 +91,8 @@ FAR char *rindex(FAR const char *s, int c);
int strcasecmp(FAR const char *, FAR const char *);
int strncasecmp(FAR const char *, FAR const char *, size_t);
void bzero(FAR void *s, size_t n);
#undef EXTERN
#if defined(__cplusplus)
}

2
libs/libc/string/Make.defs
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@ -30,7 +30,7 @@ CSRCS += lib_strndup.c lib_strcasestr.c lib_strpbrk.c lib_strrchr.c
CSRCS += lib_strspn.c lib_strstr.c lib_strtok.c lib_strtokr.c
CSRCS += lib_strsep.c lib_strerrorr.c lib_explicit_bzero.c lib_strsignal.c
CSRCS += lib_index.c lib_rindex.c lib_timingsafe_bcmp.c lib_strverscmp.c
CSRCS += lib_mempcpy.c lib_rawmemchr.c
CSRCS += lib_mempcpy.c lib_rawmemchr.c lib_bzero.c
ifneq ($(CONFIG_LIBC_ARCH_MEMCHR),y)
CSRCS += lib_memchr.c

40
libs/libc/string/lib_bzero.c Normal file
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@ -0,0 +1,40 @@
/****************************************************************************
* libs/libc/string/lib_bzero.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 <sys/types.h>
#include <string.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: bzero
****************************************************************************/
void bzero(FAR void *s, size_t n)
{
memset(s, 0, n);
}