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authorAndreas Schwab <schwab@redhat.com>2010-11-25 20:50:16 -0500
committerUlrich Drepper <drepper@gmail.com>2010-11-25 20:50:16 -0500
commita769081960837719ea79c2b6f1c962318f23865c (patch)
tree983373ea0d239b3305f3df75e0a4743a15fb83ce /resolv
parent3bf8d1b10c66bfd58d8f24ea9e31d9fc0d24553b (diff)
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Don't ignore zero TTL in DNS answers
Diffstat (limited to 'resolv')
-rw-r--r--resolv/nss_dns/dns-host.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 8592183..fe4ac2d 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -599,7 +599,6 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
int (*name_ok) (const char *);
u_char packtmp[NS_MAXCDNAME];
int have_to_map = 0;
- int32_t ttl = 0;
uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct host_data);
buffer += pad;
if (__builtin_expect (buflen < sizeof (struct host_data) + pad, 0))
@@ -733,7 +732,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
cp += INT16SZ; /* type */
class = __ns_get16 (cp);
cp += INT16SZ; /* class */
- ttl = __ns_get32 (cp);
+ int32_t ttl = __ns_get32 (cp);
cp += INT32SZ; /* TTL */
n = __ns_get16 (cp);
cp += INT16SZ; /* len */
@@ -907,7 +906,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
{
register int nn;
- if (ttlp != NULL && ttl != 0)
+ if (ttlp != NULL)
*ttlp = ttl;
if (canonp != NULL)
*canonp = bp;
@@ -1163,7 +1162,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname,
if (*firstp)
{
- if (ttl != 0 && ttlp != NULL)
+ if (ttlp != NULL)
*ttlp = ttl;
(*pat)->name = canon ?: h_name;