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authorFlorian Weimer <fweimer@redhat.com>2019-04-11 11:37:47 +0200
committerFlorian Weimer <fweimer@redhat.com>2019-04-11 11:37:47 +0200
commite3f454bac0f968216699ca405c127c858f0657c7 (patch)
tree9239772773f3b761aa4bdf09585bd9fccbff4c57 /resolv/nss_dns
parent32d85c116dd07b25f58b24204e7b05489f06fed4 (diff)
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nss_dns: Do not replace root domain with empty string
The purpose of the bp[0] == '.' check is unclear.  Only the root domain
starts with '.'.  The empty string is accepted as a domain name in many
places, denoting the root, but using it implicitly is confusing.
Diffstat (limited to 'resolv/nss_dns')
-rw-r--r--resolv/nss_dns/dns-host.c3
-rw-r--r--resolv/nss_dns/dns-network.c3
2 files changed, 0 insertions, 6 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index a18b8a6bf4..9c15f25f28 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -706,9 +706,6 @@ getanswer_r (struct resolv_context *ctx,
       n = -1;
     }
 
-  if (n > 0 && bp[0] == '.')
-    bp[0] = '\0';
-
   if (__glibc_unlikely (n < 0))
     {
       *errnop = errno;
diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
index 4b81b1bfdc..21688c19b2 100644
--- a/resolv/nss_dns/dns-network.c
+++ b/resolv/nss_dns/dns-network.c
@@ -345,9 +345,6 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
 	  n = -1;
 	}
 
-      if (n > 0 && bp[0] == '.')
-	bp[0] = '\0';
-
       if (n < 0 || res_dnok (bp) == 0)
 	break;
       cp += n;