Mercurial > hg > nginx-quic
view src/core/ngx_crc.h @ 5871:21043ce2a005
Fixed possible buffer overrun in "too long header line" logging.
Additionally, ellipsis now always added to make it clear that
the header logged is incomplete.
Reported by Daniil Bondarev.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 08 Oct 2014 17:16:04 +0400 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CRC_H_INCLUDED_ #define _NGX_CRC_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> /* 32-bit crc16 */ static ngx_inline uint32_t ngx_crc(u_char *data, size_t len) { uint32_t sum; for (sum = 0; len; len--) { /* * gcc 2.95.2 x86 and icc 7.1.006 compile * that operator into the single "rol" opcode, * msvc 6.0sp2 compiles it into four opcodes. */ sum = sum >> 1 | sum << 31; sum += *data++; } return sum; } #endif /* _NGX_CRC_H_INCLUDED_ */