56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*
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* FreeRTOS-Cellular-Interface v1.3.0
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*/
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/**
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* @file strtok.c
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* @brief Creates a stub for strtok. This stub checks if, for the input copy
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* length, the destination and source are valid accessible memory.
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*/
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#include <stdio.h>
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void * memchr( void * ptr,
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int value,
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size_t num )
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{
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/*to avoid unwind assertion on CBMC, use a constant loop time to enhance CBMC performance */
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int n = CBMC_MAX_BUFSIZE;
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char * p = ( char * ) ptr;
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( void ) num;
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while( n-- && p != NULL )
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{
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if( *p == ( char ) value )
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{
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return p;
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}
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p++;
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}
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return NULL;
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}
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