Fixed wrong URI after try_files in nested location (ticket #97). The following configuration with alias, nested location and try_files resulted in wrong file being used. Request "/foo/test.gif" tried to use "/tmp//foo/test.gif" instead of "/tmp/test.gif": location /foo/ { alias /tmp/; location ~ gif { try_files $uri =405; } } Additionally, rev. c985d90a8d1f introduced a regression if the "/tmp//foo/test.gif" file was found (ticket #768). Resulting URI was set to "gif?/foo/test.gif", as the code used clcf->name of current location ("location ~ gif") instead of parent one ("location /foo/"). Fix is to use r->uri instead of clcf->name in all cases in the ngx_http_core_try_files_phase() function. It is expected to be already matched and identical to the clcf->name of the right location.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_CRC_H_INCLUDED_
#define _NGX_CRC_H_INCLUDED_


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


/* 32-bit crc16 */

static ngx_inline uint32_t
ngx_crc(u_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_ */