nginx 0.1.40 *) Bugfix: if a client sent too long header line, then the request information did not logged in the error log. *) Bugfix: the "Set-Cookie" header line was not transferred when the "X-Accel-Redirect" was used; bug appeared in 0.1.39. *) Bugfix: the "Content-Disposition" header line was not transferred when the "X-Accel-Redirect" was used. *) Bugfix: the master process did not close the listen socket on the SIGQUIT signal. *) Bugfix: after on-line upgrade on Linux and Solaris the process name became shorter in the "ps" command.

/*
 * 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_ */