def007e2d7
since it's useful to redirect these functions to others sometime(e.g. validate the memory before write). Change-Id: I6253a9231af8809e8362f4bc5a1bd67fb094c3b0
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/****************************************************************************
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* libs/libc/string/lib_strncasecmp.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <strings.h>
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#include <ctype.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#ifndef CONFIG_ARCH_STRNCASECMP
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#undef strncasecmp /* See mm/README.txt */
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int strncasecmp(const char *cs, const char *ct, size_t nb)
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{
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int result = 0;
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for (; nb > 0; nb--)
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{
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if ((result = (int)toupper(*cs) - (int)toupper(*ct)) != 0 || !*cs)
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{
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break;
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}
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cs++;
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ct++;
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}
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return result;
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}
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#endif
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