Не понимаю, почему модуль NGINX падает. Исходник.

     1	#include <ngx_config.h>
     2	#include <ngx_core.h>
     3	#include <ngx_http.h>
       
       
     4	struct zzzxxx_stuff
     5	{
     6	    int sd;
     7	    struct sockaddr_in  server;
     8	};
       
       
     9	typedef struct
    10	{
    11	    ngx_str_t   testhost;
    12	    ngx_str_t   multiply;
    13	    ngx_flag_t  enable;
    14	    struct zzzxxx_stuff*    stuff;
       
    15	} ngx_http_zzzxxx_loc_conf_t;
       
       
    16	typedef struct
    17	{
    18	    ngx_http_upstream_conf_t       upstream;
       
    19	} xxxxngx_http_zzzxxx_loc_conf_t;
       
       
       
       
    20	static ngx_int_t ngx_http_zzzxxx_module_init ( ngx_conf_t *cf );
    21	static void* ngx_http_zzzxxx_create_loc_conf ( ngx_conf_t *cf );
    22	static char* ngx_http_zzzxxx_merge_loc_conf (ngx_conf_t *cf, void *parent, void *child);
    23	static ngx_int_t ngx_http_zzzxxx_module_handler ( ngx_http_request_t *r);
       
       
       
    24	static ngx_command_t  ngx_http_zzzxxx_commands[] =
    25	{
    26	    {
    27	        ngx_string("zzzxxxmultiply"),
    28	        NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF| NGX_CONF_TAKE1,
    29	        ngx_conf_set_str_slot,
    30	        NGX_HTTP_LOC_CONF_OFFSET,
    31	        offsetof(ngx_http_zzzxxx_loc_conf_t, multiply),
    32	        NULL
    33	    },
    34	    {
    35	        ngx_string("zzzxxxtesthost"),
    36	        NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF| NGX_CONF_TAKE1,
    37	        ngx_conf_set_str_slot,
    38	        NGX_HTTP_LOC_CONF_OFFSET,
    39	        offsetof(ngx_http_zzzxxx_loc_conf_t, testhost),
    40	        NULL
    41	    },
       
    42	    ngx_null_command
    43	};
       
       
       
    44	static ngx_http_module_t  ngx_http_zzzxxx_module_ctx =
    45	{
    46	    NULL,                                  /* preconfiguration */
    47	    ngx_http_zzzxxx_module_init,       /* postconfiguration */
    48	    NULL,                                  /* create main configuration */
    49	    NULL,                                  /* init main configuration */
    50	    NULL,                                  /* create server configuration */
    51	    NULL,                                  /* merge server configuration */
    52	    ngx_http_zzzxxx_create_loc_conf,   /* create location configuration */
    53	    ngx_http_zzzxxx_merge_loc_conf     /* merge location configuration */
    54	};
       
       
       
    55	ngx_module_t  ngx_http_zzzxxx_module = 
    56	{
    57	    NGX_MODULE_V1,
    58	    &ngx_http_zzzxxx_module_ctx,             /* module context */
    59	    ngx_http_zzzxxx_commands,                /* module directives */
    60	    NGX_HTTP_MODULE,                       /* module type */
    61	    NULL,                                  /* init master */
    62	    NULL,                                  /* init module */
    63	    NULL,                                  /* init process */
    64	    NULL,                                  /* init thread */
    65	    NULL,                                  /* exit thread */
    66	    NULL,                                  /* exit process */
    67	    NULL,                                  /* exit master */
    68	    NGX_MODULE_V1_PADDING
    69	};
       
       
       
    70	static ngx_int_t ngx_http_zzzxxx_module_init ( ngx_conf_t *cf )
    71	{
    72	    ngx_http_zzzxxx_loc_conf_t* c;
    73	    c = ngx_http_conf_get_module_loc_conf ( cf, ngx_http_zzzxxx_module );
       
    74	    ngx_http_handler_pt        *h;
    75	    ngx_http_core_main_conf_t  *cmcf;
    76	    cmcf = ngx_http_conf_get_module_main_conf ( cf, ngx_http_core_module );
       
    77	    h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
    78	    if (h == NULL) {
    79	        return NGX_ERROR;
    80	    }
       
    81	    *h = ngx_http_zzzxxx_module_handler;
       
    82	    return NGX_OK;
    83	}
       
       
       
    84	static void* ngx_http_zzzxxx_create_loc_conf ( ngx_conf_t *cf )
    85	{
    86	    ngx_http_zzzxxx_loc_conf_t* conf;
    87	    conf = ngx_pcalloc ( cf -> pool, sizeof ( ngx_http_zzzxxx_loc_conf_t ) );
    88	    if ( NULL == conf )
    89	        return NGX_CONF_ERROR;
       
    90	    return conf;
    91	}
       
       
       
    92	static char* ngx_http_zzzxxx_merge_loc_conf (ngx_conf_t *cf, void *parent, void *child)
    93	{
    94	    ngx_http_zzzxxx_loc_conf_t* conf = child;
    95	    ngx_http_zzzxxx_loc_conf_t* prev = parent;
       
    96	    ngx_conf_merge_str_value(conf->testhost, prev->testhost, "[TeSt HoSt]");
    97	    ngx_conf_merge_str_value(conf->multiply, prev->multiply, "[MulTiPly]");
       
    98	    return NGX_CONF_OK;
    99	}
       
       
       
   100	static ngx_int_t ngx_http_zzzxxx_module_handler ( ngx_http_request_t *r )
   101	{
       
   102	    int fd = open ( "/tmp/zzzxxx.txt", O_CREAT | O_RDWR | O_APPEND, S_IRUSR | S_IWUSR );
   103	    int res = 0;
   104	    if ( fd < 0 )
   105	    {
   106	        return NGX_DECLINED;
   107	    }
       
       
   108	    ngx_http_zzzxxx_loc_conf_t* c = NULL;
       
   109	    c = ngx_http_conf_get_module_loc_conf ( r, ngx_http_zzzxxx_module ); // CRASH
       
   110	    if ( NULL == c )
   111	    {
   112	        res = write ( fd, "xxx", 3 );
   113	    }
   114	    else
   115	    {
   116	        res = write ( fd, r -> uri.data , r -> uri.len );
   117	        res = write ( fd, " ::: ", 5 );
   118	        res = write ( fd, "\n", 1 );
       
   119	        if ( 0 == res )
   120	            { }
   121	    }
       
   122	    close ( fd );
       
   123	    return NGX_DECLINED;
   124	}