nginx 1.1.19 *) Security: specially crafted mp4 file might allow to overwrite memory locations in a worker process if the ngx_http_mp4_module was used, potentially resulting in arbitrary code execution (CVE-2012-2089). Thanks to Matthew Daley. *) Bugfix: nginx/Windows might be terminated abnormally. Thanks to Vincent Lee. *) Bugfix: nginx hogged CPU if all servers in an upstream were marked as "backup". *) Bugfix: the "allow" and "deny" directives might be inherited incorrectly if they were used with IPv6 addresses. *) Bugfix: the "modern_browser" and "ancient_browser" directives might be inherited incorrectly. *) Bugfix: timeouts might be handled incorrectly on Solaris/SPARC. *) Bugfix: in the ngx_http_mp4_module.

/*
 * Copyright (C) Austin Appleby
 */


#include <ngx_config.h>
#include <ngx_core.h>


uint32_t
ngx_murmur_hash2(u_char *data, size_t len)
{
    uint32_t  h, k;

    h = 0 ^ len;

    while (len >= 4) {
        k  = data[0];
        k |= data[1] << 8;
        k |= data[2] << 16;
        k |= data[3] << 24;

        k *= 0x5bd1e995;
        k ^= k >> 24;
        k *= 0x5bd1e995;

        h *= 0x5bd1e995;
        h ^= k;

        data += 4;
        len -= 4;
    }

    switch (len) {
    case 3:
        h ^= data[2] << 16;
    case 2:
        h ^= data[1] << 8;
    case 1:
        h ^= data[0];
        h *= 0x5bd1e995;
    }

    h ^= h >> 13;
    h *= 0x5bd1e995;
    h ^= h >> 15;

    return h;
}