From 2884dad43cc3c0cbf046caa0a96d7883e5ed0443 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Mon, 15 Oct 2007 16:30:38 +0000 Subject: [BZ #3425] 2007-10-15 Ulrich Drepper [BZ #3425] * resolv/nss_dns/dns-host.c (getanswer_r): Fail with NSS_STATUS_NOTFOUND if the server replied with only a CNAME and no address record to T_A/T_AAAA requests. --- resolv/nss_dns/dns-host.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'resolv/nss_dns/dns-host.c') diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c index cf060be8ef..0e25564670 100644 --- a/resolv/nss_dns/dns-host.c +++ b/resolv/nss_dns/dns-host.c @@ -215,7 +215,7 @@ _nss_dns_gethostbyname3_r (const char *name, int af, struct hostent *result, map = 1; result->h_addrtype = AF_INET; - result->h_length = INADDRSZ;; + result->h_length = INADDRSZ; } status = getanswer_r (host_buffer.buf, n, name, type, result, buffer, buflen, @@ -836,5 +836,9 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype, no_recovery: *h_errnop = NO_RECOVERY; *errnop = ENOENT; - return NSS_STATUS_TRYAGAIN; + /* Special case here: if the resolver sent a result but it only + contains a CNAME while we are looking for a T_A or T_AAAA record, + we fail with NOTFOUND instead of TRYAGAIN. */ + return ((qtype == T_A || qtype == T_AAAA) && ap != host_data->aliases + ? NSS_STATUS_NOTFOUND : NSS_STATUS_TRYAGAIN); } -- cgit v1.2.1