nginx 0.3.31 *) Change: now nginx passes the malformed proxied backend responses. *) Feature: the "listen" directives support the address in the "*:port" form. *) Feature: the EVFILER_TIMER support in MacOSX 10.4. *) Workaround: for MacOSX 64-bit kernel kqueue millisecond timeout bug. Thanks to Andrei Nigmatulin. *) Bugfix: if there were several "listen" directives listening one various addresses inside one server, then server names like "*.domain.tld" worked for first address only; bug appeared in 0.3.18. *) Bugfix: if the HTTPS protocol was used in the "proxy_pass" directive and the request body was in temporarily file then the request was not transferred. *) Bugfix: perl 5.8.8 compatibility.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_CRC_H_INCLUDED_
#define _NGX_CRC_H_INCLUDED_


/* 32-bit crc16 */

static ngx_inline uint32_t ngx_crc(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_ */