ngx_str_set() and ngx_str_null()
diff --git a/src/core/ngx_string.h b/src/core/ngx_string.h
index b29bdda..53b9422 100644
--- a/src/core/ngx_string.h
+++ b/src/core/ngx_string.h
@@ -38,6 +38,9 @@
#define ngx_string(str) { sizeof(str) - 1, (u_char *) str }
#define ngx_null_string { 0, NULL }
+#define ngx_str_set(str, text) \
+ (str)->len = sizeof(text) - 1; (str)->data = (u_char *) text
+#define ngx_str_null(str) (str)->len = 0; (str)->data = NULL
#define ngx_tolower(c) (u_char) ((c >= 'A' && c <= 'Z') ? (c | 0x20) : c)
