From: Quentin Young <qlyoung@cumulusnetworks.com>
Date: Fri, 1 Feb 2019 21:23:02 +0000 (+0000)
Subject: lib: add sizing macro to ipaddr.h
X-Git-Tag: base_7.2~330^2~107
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=4f838de4201322e6a74e1a0bb0639f22f27d4772;p=matthieu%2Ffrr.git

lib: add sizing macro to ipaddr.h

Useful for getting the size of the relevant data in the `ip` field of
struct ipaddr.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
---

diff --git a/lib/ipaddr.h b/lib/ipaddr.h
index f4ddadc66e..503431a7c0 100644
--- a/lib/ipaddr.h
+++ b/lib/ipaddr.h
@@ -56,6 +56,9 @@ struct ipaddr {
 #define SET_IPADDR_V4(p)  (p)->ipa_type = IPADDR_V4
 #define SET_IPADDR_V6(p)  (p)->ipa_type = IPADDR_V6
 
+#define IPADDRSZ(p)                                                            \
+	IS_IPADDR_V4((p)) ? sizeof(struct in_addr) : sizeof(struct in6_addr)
+
 static inline int str2ipaddr(const char *str, struct ipaddr *ip)
 {
 	int ret;