new file mode 100644
--- /dev/null
+++ b/src/os/unix/ngx_files.h
@@ -0,0 +1,115 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#ifndef _NGX_FILES_H_INCLUDED_
+#define _NGX_FILES_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+#define NGX_INVALID_FILE         -1
+#define NGX_FILE_ERROR           -1
+
+
+
+#define ngx_open_file(name, access, create)                                 \
+                                 open((const char *) name, access|create, 0644)
+#define ngx_open_file_n          "open()"
+
+#define NGX_FILE_RDONLY          O_RDONLY
+#define NGX_FILE_RDWR            O_RDWR
+#define NGX_FILE_CREATE_OR_OPEN  O_CREAT
+#define NGX_FILE_OPEN            0
+#define NGX_FILE_TRUNCATE        O_TRUNC
+#define NGX_FILE_APPEND          O_APPEND
+
+
+#define ngx_close_file           close
+#define ngx_close_file_n         "close()"
+
+
+#define ngx_delete_file(name)    unlink((const char *) name)
+#define ngx_delete_file_n        "unlink()"
+
+
+int ngx_open_tempfile(u_char *name, ngx_uint_t persistent);
+#define ngx_open_tempfile_n      "open()"
+
+
+ssize_t ngx_read_file(ngx_file_t *file, u_char *buf, size_t size, off_t offset);
+#define ngx_read_file_n          "read()"
+
+
+ssize_t ngx_write_file(ngx_file_t *file, u_char *buf, size_t size,
+                       off_t offset);
+
+ssize_t ngx_write_chain_to_file(ngx_file_t *file, ngx_chain_t *ce,
+                                off_t offset, ngx_pool_t *pool);
+
+
+#define ngx_rename_file          rename
+#define ngx_rename_file_n        "rename"
+
+
+#define ngx_file_info(file, sb)  stat((const char *) file, sb)
+#define ngx_file_info_n          "stat()"
+
+#define ngx_fd_info(fd, sb)      fstat(fd, sb)
+#define ngx_fd_info_n            "fstat()"
+
+#define ngx_is_dir(sb)           (S_ISDIR((sb)->st_mode))
+#define ngx_is_file(sb)          (S_ISREG((sb)->st_mode))
+#define ngx_file_size(sb)        (sb)->st_size
+#define ngx_file_mtime(sb)       (sb)->st_mtime
+#define ngx_file_uniq(sb)        (sb)->st_ino
+
+
+
+#define ngx_getcwd(buf, size)    (getcwd(buf, size) != NULL)
+#define ngx_getcwd_n             "getcwd()"
+#define NGX_MAX_PATH             PATH_MAX
+
+#define NGX_DIR_MASK_LEN         0
+
+
+int ngx_open_dir(ngx_str_t *name, ngx_dir_t *dir);
+#define ngx_open_dir_n           "opendir()"
+
+
+#define ngx_close_dir(d)         closedir((d)->dir)
+#define ngx_close_dir_n          "closedir()"
+
+
+#define ngx_read_dir(d)                                                      \
+                           (((d)->de = readdir((d)->dir)) ? NGX_OK : NGX_ERROR)
+#define ngx_read_dir_n           "readdir()"
+
+
+#define ngx_create_dir(name)     mkdir((const char *) name, 0700)
+#define ngx_create_dir_n         "mkdir()"
+
+
+#define ngx_delete_dir(name)     rmdir((const char *) name)
+#define ngx_delete_dir_n         "rmdir()"
+
+
+#define ngx_de_name(dir)         (dir)->de->d_name
+#ifdef __FreeBSD__
+#define ngx_de_namelen(dir)      (dir)->de->d_namlen
+#else
+#define ngx_de_namelen(dir)      ngx_strlen((dir)->de->d_name)
+#endif
+#define ngx_de_info(name, dir)   stat((const char *) name, &(dir)->info)
+#define ngx_de_info_n            "stat()"
+#define ngx_de_is_dir(dir)       (S_ISDIR((dir)->info.st_mode))
+#define ngx_de_is_file(dir)      (S_ISREG((dir)->info.st_mode))
+#define ngx_de_size(dir)         (dir)->info.st_size
+#define ngx_de_mtime(dir)        (dir)->info.st_mtime
+
+
+#endif /* _NGX_FILES_H_INCLUDED_ */