rpki-client patch submission

[Alexandre Hamada]

Hi Tech,

I've found a missing initialization at ip.c (rpki-client project), and I 
would like to share this patch with the repository maintainer.

Kind regards,
Alexandre Hamada

https://patch-diff.githubusercontent.com/raw/kristapsdz/rpki-client/pull/8.patch

From e74a5c02fbab9172dd856fc7214be42ef1dc6b65 Mon Sep 17 00:00:00 2001
From: dev-gto <43351700+dev-...@users.noreply.github.com>
Date: Wed, 2 Oct 2019 15:34:28 -0300
Subject: [PATCH] Fix non-initialized addr

Running test-roa several times on the same .roa containing /24 ipV4 block gives 
different output in the last octet.
---
 ip.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ip.c b/ip.c
index 8587c42..968a474 100644
--- a/ip.c
+++ b/ip.c
@@ -205,6 +205,9 @@ ip_addr_parse(const ASN1_BIT_STRING *p,
                warnx("%s: RFC 3779 section 2.2.3.8: "
                    "unused bit count must be zero if length is zero", fn);
                return 0;
+       } else if (addr == NULL) {
+               warnx("%s: Invalid param addr", fn);
+               return 0;
        }
 
 	/*
@@ -229,6 +232,7 @@ ip_addr_parse(const ASN1_BIT_STRING *p,
                return 0;
        }
 
+	memset (addr, 0, sizeof(struct ip_addr));
        addr->prefixlen = p->length * 8 - unused;
        memcpy(addr->addr, p->data, p->length);
        return 1;