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[BZ #3425] 

2007-10-15  Ulrich Drepper  <drepper@redhat.com>
	[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.
This commit is contained in:
Ulrich Drepper 2007-10-15 16:30:38 +00:00
parent 8d97ac1355
commit 2884dad43c
2 changed files with 13 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2007-10-15 Ulrich Drepper <drepper@redhat.com>
[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.
2007-10-14 Ulrich Drepper <drepper@redhat.com> 2007-10-14 Ulrich Drepper <drepper@redhat.com>
* posix/glob.c: Reimplement link_exists_p to use fstatat64. * posix/glob.c: Reimplement link_exists_p to use fstatat64.

8
resolv/nss_dns/dns-host.c
View File

@ -215,7 +215,7 @@ _nss_dns_gethostbyname3_r (const char *name, int af, struct hostent *result,
map = 1; map = 1;
result->h_addrtype = AF_INET; 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, 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: no_recovery:
*h_errnop = NO_RECOVERY; *h_errnop = NO_RECOVERY;
*errnop = ENOENT; *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);
} }