9ec43e1721
Fixes CVE-2018-18558
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <stddef.h>
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/**
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* @brief Check if half-open intervals overlap
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*
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* @param start1 interval 1 start
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* @param end1 interval 1 end
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* @param start2 interval 2 start
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* @param end2 interval 2 end
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* @return true iff [start1; end1) overlaps [start2; end2)
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*/
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static inline bool bootloader_util_regions_overlap(
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const intptr_t start1, const intptr_t end1,
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const intptr_t start2, const intptr_t end2)
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{
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return (end1 > start2 && end2 > start1) ||
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!(end1 <= start2 || end2 <= start1);
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}
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