From: anlan_cs <vic.lan@pica8.com>
Date: Wed, 11 Jan 2023 00:44:46 +0000 (+0800)
Subject: lib: show "(null)" for empty IP address
X-Git-Tag: base_8.5~54^2
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=927c633dd9813703534ec8d4bed20f1461e044f8;p=matthieu%2Ffrr.git

lib: show "(null)" for empty IP address

Use "(null)" for empty IP address.

One example in `bgp_zebra_send_remote_macip()` to install mac:

Before:
```
2023/01/18 02:09:09 BGP: [SCHS5-AK960] Tx ADD MACIP, VNI 200 MAC 06:6b:7c:db:83:72 IP  flags 0x0 seq 0 remote VTEP 88.88.88.88 esi -
```

After:
```
2023/01/18 20:19:57 BGP: [SCHS5-AK960] Tx ADD MACIP, VNI 200 MAC 06:6b:7c:db:83:72 IP (null) flags 0x0 seq 0 remote VTEP 88.88.88.88 esi -
```

Signed-off-by: anlan_cs <vic.lan@pica8.com>
---

diff --git a/lib/prefix.c b/lib/prefix.c
index 4642f14d35..1d098f78c5 100644
--- a/lib/prefix.c
+++ b/lib/prefix.c
@@ -1489,7 +1489,7 @@ static ssize_t printfrr_ia(struct fbuf *buf, struct printfrr_eargs *ea,
 		ea->fmt++;
 	}
 
-	if (!ipa)
+	if (!ipa || !ipa->ipa_type)
 		return bputs(buf, "(null)");
 
 	if (use_star) {