annotate src/core/ngx_crc32.h @ 564:da3c99095432 NGINX_0_8_34

nginx 0.8.34 *) Bugfix: nginx did not support all ciphers and digests used in client certificates. Thanks to Innocenty Enikeew. *) Bugfix: nginx cached incorrectly FastCGI responses if there was large stderr output before response. *) Bugfix: nginx did not support HTTPS referrers. *) Bugfix: nginx/Windows might not find file if path in configuration was given in other character case; the bug had appeared in 0.8.34. *) Bugfix: the $date_local variable has an incorrect value, if the "%s" format was used. Thanks to Maxim Dounin. *) Bugfix: if ssl_session_cache was not set or was set to "none", then during client certificate verify the error "session id context uninitialized" might occur; the bug had appeared in 0.7.1. *) Bugfix: a geo range returned default value if the range included two or more /16 networks and did not begin at /16 network boundary. *) Bugfix: a block used in a "stub" parameter of an "include" SSI directive was output with "text/plain" MIME type. *) Bugfix: $r->sleep() did not work; the bug had appeared in 0.8.11.
author Igor Sysoev <http://sysoev.ru>
date Wed, 03 Mar 2010 00:00:00 +0300
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children d0f7a625f27c
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_CRC32_H_INCLUDED_
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8 #define _NGX_CRC32_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 extern uint32_t *ngx_crc32_table_short;
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16 extern uint32_t ngx_crc32_table256[];
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19 static ngx_inline uint32_t
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20 ngx_crc32_short(u_char *p, size_t len)
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21 {
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22 u_char c;
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23 uint32_t crc;
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25 crc = 0xffffffff;
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27 while (len--) {
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28 c = *p++;
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29 crc = ngx_crc32_table_short[(crc ^ (c & 0xf)) & 0xf] ^ (crc >> 4);
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30 crc = ngx_crc32_table_short[(crc ^ (c >> 4)) & 0xf] ^ (crc >> 4);
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31 }
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33 return crc ^ 0xffffffff;
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34 }
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37 static ngx_inline uint32_t
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38 ngx_crc32_long(u_char *p, size_t len)
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39 {
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40 uint32_t crc;
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41
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42 crc = 0xffffffff;
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44 while (len--) {
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45 crc = ngx_crc32_table256[(crc ^ *p++) & 0xff] ^ (crc >> 8);
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46 }
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48 return crc ^ 0xffffffff;
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49 }
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52 #define ngx_crc32_init(crc) \
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53 crc = 0xffffffff
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56 static ngx_inline void
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57 ngx_crc32_update(uint32_t *crc, u_char *p, size_t len)
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58 {
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59 uint32_t c;
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61 c = *crc;
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63 while (len--) {
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64 c = ngx_crc32_table256[(c ^ *p++) & 0xff] ^ (c >> 8);
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65 }
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67 *crc = c;
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68 }
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71 #define ngx_crc32_final(crc) \
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72 crc ^= 0xffffffff
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75 ngx_int_t ngx_crc32_table_init(void);
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78 #endif /* _NGX_CRC32_H_INCLUDED_ */