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--- tcpdump-4.9.2/print-hncp.c.old 2017-09-03 23:17:14.000000000 +0000
+++ tcpdump-4.9.2/print-hncp.c 2018-12-07 19:31:24.360000000 +0000
@@ -228,6 +228,7 @@
snprintf(buf, sizeof(buf), "%s/%d", ipaddr_string(ndo, &addr), plen);
plenbytes += 1 + IPV4_MAPPED_HEADING_LEN;
} else {
+ buf[0] = '\0';
plenbytes = decode_prefix6(ndo, prefix, max_length, buf, sizeof(buf));
}
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