[RFC iproute2-next 02/11] ip: export print_rta_gateway version which outputs prepared gateway string

[Nikolay Aleksandrov <razor@blackwall.org>]

From: Nikolay Aleksandrov <nikolay@nvidia.com>

Export a new __print_rta_gateway that takes a prepared gateway string to
print which is also used by print_rta_gateway for consistent format.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
---
 ip/ip_common.h |  1 +
 ip/iproute.c   | 15 ++++++++++-----
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/ip/ip_common.h b/ip/ip_common.h
index d3d50cbca74d..a02a3b96f7fd 100644
--- a/ip/ip_common.h
+++ b/ip/ip_common.h
@@ -169,6 +169,7 @@ int name_is_vrf(const char *name);
 void print_num(FILE *fp, unsigned int width, uint64_t count);
 void print_rt_flags(FILE *fp, unsigned int flags);
 void print_rta_ifidx(FILE *fp, __u32 ifidx, const char *prefix);
+void __print_rta_gateway(FILE *fp, unsigned char family, const char *gateway);
 void print_rta_gateway(FILE *fp, unsigned char family,
 		       const struct rtattr *rta);
 #endif /* _IP_COMMON_H_ */
diff --git a/ip/iproute.c b/ip/iproute.c
index f2bf4737b958..3c933df4dd29 100644
--- a/ip/iproute.c
+++ b/ip/iproute.c
@@ -547,13 +547,11 @@ static void print_rta_newdst(FILE *fp, const struct rtmsg *r,
 	}
 }
 
-void print_rta_gateway(FILE *fp, unsigned char family, const struct rtattr *rta)
+void __print_rta_gateway(FILE *fp, unsigned char family, const char *gateway)
 {
-	const char *gateway = format_host_rta(family, rta);
-
-	if (is_json_context())
+	if (is_json_context()) {
 		print_string(PRINT_JSON, "gateway", NULL, gateway);
-	else {
+	} else {
 		fprintf(fp, "via ");
 		print_color_string(PRINT_FP,
 				   ifa_family_color(family),
@@ -561,6 +559,13 @@ void print_rta_gateway(FILE *fp, unsigned char family, const struct rtattr *rta)
 	}
 }
 
+void print_rta_gateway(FILE *fp, unsigned char family, const struct rtattr *rta)
+{
+	const char *gateway = format_host_rta(family, rta);
+
+	__print_rta_gateway(fp, family, gateway);
+}
+
 static void print_rta_via(FILE *fp, const struct rtattr *rta)
 {
 	size_t len = RTA_PAYLOAD(rta) - 2;
-- 
2.31.1