diff --git a/src/core/ngx_config_file.c b/src/core/ngx_config_file.c
new file mode 100644
index 0000000..b2b4b81
--- /dev/null
+++ b/src/core/ngx_config_file.c
@@ -0,0 +1,314 @@
+
+#include <ngx_config.h>
+
+#include <ngx_core.h>
+
+#include <ngx_config_file.h>
+
+
+static int argument_number[] = {
+    NGX_CONF_NOARGS,
+    NGX_CONF_TAKE1,
+    NGX_CONF_TAKE2
+};
+
+#if 0
+
+int ngx_conf_parse(ngx_conf_t *cf, char *filename)
+{
+    int    rc;
+    char  *error;
+    ngx_fd_t  fd;
+    ngx_conf_file_t  *prev;
+
+    if (filename) {
+
+        fd = ngx_open_file(filename, NGX_FILE_RDONLY);
+        if (fd == NGX_INVALID_FILE) {
+            ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno,
+                          "ngx_conf_open: "
+                          ngx_open_file_n " %s failed", filename);
+            return NGX_ERROR;
+        }
+
+        prev = cf->file;
+        ngx_test_null(cf->file, ngx_palloc(cf->pool, sizeof(ngx_conf_file_t)),
+                      NGX_ERROR);
+
+        cf->file->fd = fd;
+        cf->file->name = filename;
+        cf->file->line = 1;
+        cf->file->pos = 0;
+    }
+
+    for ( ;; ) {
+        rc = ngx_conf_read_token(cf);
+
+        /* ??? NGX_OK, NGX_ERROR, NGX_CONF_FILE_DONE, NGX_CONF_BLOCK_DONE */
+
+        if (rc != NGX_OK) {
+            return rc;
+        }
+
+        /* ????
+           "listen address:port;"
+           "location /images/ {" */
+
+        if (cf->handler) {
+
+            if (*(cf->handler)(cf) == NGX_ERROR) {
+                return NGX_ERROR;
+            }
+
+            continue;
+        }
+
+        cmd = ngx_conf_find_token(cf);
+        if (cmd == NULL) {
+            ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                          "unknown directive \"%s\" in %s:%d",
+                          cf->name, cf->file->name, cf->file->line);
+            return NGX_ERROR;
+        }
+
+        if (cmd->type & argument_number[cf->args->nelts]) {
+            error = cmd->set(cf, cmd->offset, cf->args);
+
+            if (error) {
+                 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                               "%s in directive \"%s\" in %s:%d",
+                               error, cf->name, cf->file->name, cf->file->line);
+                return NGX_ERROR;
+            }
+        }
+
+#if 0
+        if (cmd->type == NGX_CONF_CONTAINER) {
+            ngx_conf_parse(cf, cmd->container, NULL);
+
+        } else if (cmd->type == NGX_CONF_FLAG) {
+
+            if (cf->args->nelts != 1) {
+                ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                              "invalid number of arguments "
+                              "in directive \"%s\" in %s:%d",
+                              cf->name, cf->file->name, cf->file->line);
+                return NGX_ERROR;
+            }
+
+            if (ngx_strcasecmp(cf->args->elts[0], "on") == 0) {
+                flag = 1;
+
+            } else if (ngx_strcasecmp(cf->args->elts[0], "off") == 0) {
+                flag = 0;
+
+            } else {
+                ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                              "invalid flag in directive \"%s\" in %s:%d",
+                              cf->name, cf->file->name, cf->file->line);
+                return NGX_ERROR;
+            }
+
+            rv = cmd->set(cf, cmd->offset, flag);
+            if (rv) {
+                 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                               "%s in directive \"%s\" in %s:%d",
+                               rv, cf->name, cf->file->name, cf->file->line);
+                return NGX_ERROR;
+            }
+
+        } else if (cmd->type & argument_number[args->nelts]) {
+            rv = cmd->set(cf, cmd->offset, cf->args);
+            if (rv) {
+                 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                               "%s in directive \"%s\" in %s:%d",
+                               rv, cf->name, cf->file->name, cf->file->line);
+                return NGX_ERROR;
+            }
+
+        } else {
+            ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
+                          "invalid number of arguments "
+                          "in directive \"%s\" in %s:%d",
+                          cf->name, cf->file->name, cf->file->line);
+            return NGX_ERROR;
+        }
+    }
+#endif
+
+    if (filename) {
+        cf->file = prev;
+
+        if (ngx_close_file(fd) == NGX_FILE_ERROR) {
+            ngx_log_error(NGX_LOG_ERR, cf->log, ngx_errno,
+                          ngx_close_file_n " %s failed", cf->name);
+            return NGX_ERROR;
+        }
+    }
+
+    return NGX_OK;
+}    
+
+#endif
+
+#if 0
+
+int ngx_conf_read_token(ngx_conf_t *cf)
+{
+    char        *start, ch, *src, *dst;
+    int          n, need_space, last_space, len, quoted, s_quoted, d_quoted;
+    ngx_hunk_t  *h;
+
+    need_space = 0;
+    last_space = 1;
+    len = 0;
+    quoted = s_quoted = d_quoted = 0;
+
+    cf->args->nelts = 0;
+    h = cf->conf_file->hunk;
+
+    for (start = h->pos.mem; /* end_of_file */ ; h->pos.mem++) {
+
+        if (h->pos.mem >= h->last.mem) {
+            if (h->pos.mem - start) {
+                ngx_memcpy(h->start, start, h->pos.mem - start);
+            }
+
+            n = ngx_read_file(cf->conf_file->file,
+                              h->start + (h->pos.mem - start),
+                              h->end - (h->start + (h->pos.mem - start)),
+                              cf->conf_file->file.offset);
+
+            if (n == NGX_ERROR) {
+                return NGX_ERROR;
+            }
+
+            cf->conf_file.file.offset += n;
+            h->pos.mem = h->start + (h->pos.mem - start);
+            start = h->start;
+            h->last.mem = h->pos.mem + n;
+        }
+
+        ch = *h->pos.mem;
+
+        if (ch == LF) {
+            cf->conf_file->line++;
+        }
+
+        if (quoted) {
+            quoted = 0;
+            continue;
+        }
+
+        len++;
+
+        if (last_space) {
+            start = h->pos.mem;
+
+            if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) {
+                start++;
+                continue;
+            }
+        }
+
+        if (ch = '\\') {
+            quoted = 1;
+            continue;
+        }
+
+        if (d_quoted) {
+
+            if (ch == '"') {
+                d_quoted = 0;
+                need_space = 1;
+                last_space = 1;
+                continue;
+            }
+
+        } else if (s_quoted) {
+
+            if (ch == '\'') {
+                s_quoted = 0;
+                need_space = 1;
+                last_space = 1;
+                continue;
+            }
+
+        } else {
+
+            if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) {
+                ngx_test_null(word, ngx_push_array(cf->args), NGX_ERROR);
+                ngx_test_null(word->data, ngx_palloc(cf->temp_pool, len + 1),
+                              NGX_ERROR);
+                word->len = len;
+
+                for (dst = word->data, src = start; src < h->pos; /* void */) {
+                    if (*src == '\\')
+                        src++;
+                    *dst++ = *src++;
+                }
+                *dst = '\0';
+
+                need_space = 0;
+                last_space = 1;
+                continue;
+            }
+
+            if (need_space) {
+                return NGX_ERROR;
+            }
+
+            if (ch == ';') {
+                return NGX_OK;
+            }
+
+            if (ch == '{') {
+                return NGX_OK;
+            }
+
+            if (ch == '}') {
+                return NGX_BLOCK_DONE;
+            }
+
+            if (last_space) {
+                if (ch == '"') {
+                    d_quoted = 1;
+                    continue;
+                }
+
+                if (ch == '\'') {
+                    s_quoted = 1;
+                    continue;
+                }
+            }
+
+            last_space = 0;
+        }
+    }
+}
+
+#endif
+
+char *ngx_conf_set_size_slot(char *conf, int offset, char *value)
+{
+    int size;
+
+    size = atoi(value);
+    if (size < 0)
+        return "value must be greater or equal to zero";
+
+    *(int *) (conf + offset) = size;
+    return NULL;
+}
+
+char *ngx_conf_set_time_slot(char *conf, int offset, char *value)
+{
+    int size;
+
+    size = atoi(value);
+    if (size < 0)
+        return "value must be greater or equal to zero";
+
+    *(int *) (conf + offset) = size;
+    return NULL;
+}