Mercurial > hg > nginx-quic
view src/core/ngx_crc32.h @ 8183:1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Similarly to ssl_conf_command, proxy_ssl_conf_command (grpc_ssl_conf_command,
uwsgi_ssl_conf_command) can be used to set arbitrary OpenSSL configuration
parameters as long as nginx is compiled with OpenSSL 1.0.2 or later,
when connecting to upstream servers with SSL. Full list of available
configuration commands can be found in the SSL_CONF_cmd manual page
(https://www.openssl.org/docs/man1.1.1/man3/SSL_CONF_cmd.html).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 22 Oct 2020 18:00:23 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_CRC32_H_INCLUDED_ #define _NGX_CRC32_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> extern uint32_t *ngx_crc32_table_short; extern uint32_t ngx_crc32_table256[]; static ngx_inline uint32_t ngx_crc32_short(u_char *p, size_t len) { u_char c; uint32_t crc; crc = 0xffffffff; while (len--) { c = *p++; crc = ngx_crc32_table_short[(crc ^ (c & 0xf)) & 0xf] ^ (crc >> 4); crc = ngx_crc32_table_short[(crc ^ (c >> 4)) & 0xf] ^ (crc >> 4); } return crc ^ 0xffffffff; } static ngx_inline uint32_t ngx_crc32_long(u_char *p, size_t len) { uint32_t crc; crc = 0xffffffff; while (len--) { crc = ngx_crc32_table256[(crc ^ *p++) & 0xff] ^ (crc >> 8); } return crc ^ 0xffffffff; } #define ngx_crc32_init(crc) \ crc = 0xffffffff static ngx_inline void ngx_crc32_update(uint32_t *crc, u_char *p, size_t len) { uint32_t c; c = *crc; while (len--) { c = ngx_crc32_table256[(c ^ *p++) & 0xff] ^ (c >> 8); } *crc = c; } #define ngx_crc32_final(crc) \ crc ^= 0xffffffff ngx_int_t ngx_crc32_table_init(void); #endif /* _NGX_CRC32_H_INCLUDED_ */