From a769081960837719ea79c2b6f1c962318f23865c Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Thu, 25 Nov 2010 20:50:16 -0500 Subject: Don't ignore zero TTL in DNS answers --- ChangeLog | 6 ++++++ resolv/nss_dns/dns-host.c | 7 +++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/ChangeLog b/ChangeLog index b189baa02b..c253bf19e9 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2010-11-24 Andreas Schwab + + * resolv/nss_dns/dns-host.c (getanswer_r): Don't handle ttl == 0 + specially. + (gaih_getanswer_slice): Likewise. + 2010-10-20 Jakub Jelinek * sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Fix up inline asm. diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c index 8592183f62..fe4ac2d793 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; -- cgit 1.4.1