Win32: reworked ngx_win32_rename_file() to check errors. Previously, ngx_win32_rename_file() retried on all errors returned by MoveFile() to a temporary name. It only make sense, however, to retry when the destination file already exists, similarly to the condition when ngx_win32_rename_file() is called. Retrying on other errors is meaningless and might result in an infinite loop.

/*
 * Copyright (C) Maxim Dounin
 * Copyright (C) Nginx, Inc.
 */


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


char *
ngx_dlerror(void)
{
    u_char         *p;
    static u_char   errstr[NGX_MAX_ERROR_STR];

    p = ngx_strerror(ngx_errno, errstr, NGX_MAX_ERROR_STR);
    *p = '\0';

    return (char *) errstr;
}