From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 16 Jul 2014 01:28:52 +0000 (+0200)
Subject: dns-domain: fix generation of reverse IP address lookup name
X-Git-Tag: v216~611
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=3fe1169fe3a692b8416848abc451bd1e4cbc4e4a

dns-domain: fix generation of reverse IP address lookup name
---

diff --git a/src/resolve/resolved-dns-domain.c b/src/resolve/resolved-dns-domain.c
index 94ffc0fac..33ae2610e 100644
--- a/src/resolve/resolved-dns-domain.c
+++ b/src/resolve/resolved-dns-domain.c
@@ -334,11 +334,15 @@ int dns_name_reverse(int family, const union in_addr_union *a, char **ret) {
         if (family == AF_INET)
                 r = asprintf(ret, "%u.%u.%u.%u.in-addr.arpa", p[3], p[2], p[1], p[0]);
         else if (family == AF_INET6)
-                r = asprintf(ret, "%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.ip6.arpa",
-                             hexchar(p[15]), hexchar(p[14]), hexchar(p[13]), hexchar(p[12]),
-                             hexchar(p[11]), hexchar(p[10]), hexchar(p[ 9]), hexchar(p[ 8]),
-                             hexchar(p[ 7]), hexchar(p[ 6]), hexchar(p[ 5]), hexchar(p[ 4]),
-                             hexchar(p[ 3]), hexchar(p[ 2]), hexchar(p[ 1]), hexchar(p[ 0]));
+                r = asprintf(ret, "%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.%c.ip6.arpa",
+                             hexchar(p[15] & 0xF), hexchar(p[15] >> 4), hexchar(p[14] & 0xF), hexchar(p[14] >> 4),
+                             hexchar(p[13] & 0xF), hexchar(p[13] >> 4), hexchar(p[12] & 0xF), hexchar(p[12] >> 4),
+                             hexchar(p[11] & 0xF), hexchar(p[11] >> 4), hexchar(p[10] & 0xF), hexchar(p[10] >> 4),
+                             hexchar(p[ 9] & 0xF), hexchar(p[ 9] >> 4), hexchar(p[ 8] & 0xF), hexchar(p[ 8] >> 4),
+                             hexchar(p[ 7] & 0xF), hexchar(p[ 7] >> 4), hexchar(p[ 6] & 0xF), hexchar(p[ 6] >> 4),
+                             hexchar(p[ 5] & 0xF), hexchar(p[ 5] >> 4), hexchar(p[ 4] & 0xF), hexchar(p[ 4] >> 4),
+                             hexchar(p[ 3] & 0xF), hexchar(p[ 3] >> 4), hexchar(p[ 2] & 0xF), hexchar(p[ 2] >> 4),
+                             hexchar(p[ 1] & 0xF), hexchar(p[ 1] >> 4), hexchar(p[ 0] & 0xF), hexchar(p[ 0] >> 4));
         else
                 return -EAFNOSUPPORT;
         if (r < 0)