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authorSiddhesh Poyarekar <siddhesh@redhat.com>2012-11-19 13:01:43 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2012-11-19 13:02:48 +0530
commitcfde9b463d63092ff0908d4c2748ace648e2ead8 (patch)
tree9ac0df733a6b3a01305f937e5e55ea63f3387328 /resolv
parentf6da27e53695ad1cc0e2a9490358decbbfdff5e5 (diff)
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Return EAI_SYSTEM if we're out of file descriptors
Resolves BZ #14719.
Diffstat (limited to 'resolv')
-rw-r--r--resolv/nss_dns/dns-host.c25
1 files changed, 21 insertions, 4 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 6b62c058..f78b879 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -199,6 +199,11 @@ _nss_dns_gethostbyname3_r (const char *name, int af, struct hostent *result,
status = NSS_STATUS_TRYAGAIN;
h_errno = TRY_AGAIN;
break;
+ /* System has run out of file descriptors. */
+ case EMFILE:
+ case ENFILE:
+ h_errno = NETDB_INTERNAL;
+ /* Fall through. */
case ECONNREFUSED:
case ETIMEDOUT:
status = NSS_STATUS_UNAVAIL;
@@ -311,14 +316,26 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat,
&ans2p, &nans2p, &resplen2);
if (n < 0)
{
- if (errno == ESRCH)
+ switch (errno)
{
+ case ESRCH:
status = NSS_STATUS_TRYAGAIN;
h_errno = TRY_AGAIN;
+ break;
+ /* System has run out of file descriptors. */
+ case EMFILE:
+ case ENFILE:
+ h_errno = NETDB_INTERNAL;
+ /* Fall through. */
+ case ECONNREFUSED:
+ case ETIMEDOUT:
+ status = NSS_STATUS_UNAVAIL;
+ break;
+ default:
+ status = NSS_STATUS_NOTFOUND;
+ break;
}
- else
- status = (errno == ECONNREFUSED
- ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND);
+
*herrnop = h_errno;
if (h_errno == TRY_AGAIN)
*errnop = EAGAIN;