lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

[BZ #13760]

Browse Source 
* resolv/nss_dns/dns-host.c (gaih_getanswer): Look for errno
        in the right place. Discard and retry query if response is
        larger than input buffer size.
This commit is contained in:
Jeff Law
2012-03-28 10:09:29 -06:00
parent d6270972f7
commit 86ae07a8c9
3 changed files with 17 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -1219,7 +1219,13 @@ gaih_getanswer (const querybuf *answer1, int anslen1, const querybuf *answer2,
&first);
if ((status == NSS_STATUS_SUCCESS || status == NSS_STATUS_NOTFOUND
|| (status == NSS_STATUS_TRYAGAIN
&& (errno != ERANGE || *h_errnop != NO_RECOVERY)))
/* We want to look at the second answer in case of an
NSS_STATUS_TRYAGAIN only if the error is non-recoverable, i.e.
*h_errnop is NO_RECOVERY. If not, and if the failure was due to
an insufficient buffer (ERANGE), then we need to drop the results
and pass on the NSS_STATUS_TRYAGAIN to the caller so that it can
repeat the query with a larger buffer. */
&& (*errnop != ERANGE || *h_errnop == NO_RECOVERY)))
&& answer2 != NULL && anslen2 > 0)
{
enum nss_status status2 = gaih_getanswer_slice(answer2, anslen2, qname,