From: Martin Mares <mj@ucw.cz>
Date: Sun, 6 Dec 1998 23:10:45 +0000 (+0000)
Subject: Added new rule for prefix length / netmask.
X-Git-Tag: v1.2.0~1774
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=89d2355d3d16ac51ad5861d91b17eaa65713f80b;p=thirdparty%2Fbird.git

Added new rule for prefix length / netmask.
---

diff --git a/conf/confbase.Y b/conf/confbase.Y
index 8e3212993..0f00587a2 100644
--- a/conf/confbase.Y
+++ b/conf/confbase.Y
@@ -32,7 +32,7 @@ CF_DECLS
 %token <s> SYM
 %token <t> TEXT
 
-%type <i> expr bool
+%type <i> expr bool pxlen
 
 %left '+' '-'
 %left '*' '/' '%'
@@ -88,6 +88,19 @@ bool:
  | /* Silence means agreement */ { $$ = 1; }
  ;
 
+/* Prefixes and netmasks */
+
+pxlen:
+   '/' NUM {
+     if ($2 < 0 || $2 > 32) cf_error("Invalid prefix length %d", $2);
+     $$ = $2;
+   }
+ | ':' IPA {
+     $$ = ipa_mklen($2);
+     if ($$ < 0) cf_error("Invalid netmask %I", $2);
+   }
+ ;
+
 CF_CODE
 
 CF_END