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| author | Ulrich Drepper <drepper@redhat.com> | 2010-04-05 12:21:20 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2010-04-05 12:21:20 -0700 |
| commit | 4535680d03d15dc9ce19d97b9d242a10941d5016 (patch) | |
| tree | 300102dc9bf513d54003f18aa57d669b7d6a06ed /resolv | |
| parent | 4bc2bcba67e870778fb9397f29435ee1b66bebf3 (diff) | |
| download | glibc-4535680d03d15dc9ce19d97b9d242a10941d5016.tar.gz glibc-4535680d03d15dc9ce19d97b9d242a10941d5016.tar.xz glibc-4535680d03d15dc9ce19d97b9d242a10941d5016.zip | |
Handle DNS timeouts in old-style lookkup code.
Diffstat (limited to 'resolv')
| -rw-r--r-- | resolv/nss_dns/dns-host.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c index 818a40a898..e0c4978c3b 100644 --- a/resolv/nss_dns/dns-host.c +++ b/resolv/nss_dns/dns-host.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1996-2004, 2007, 2008, 2009 Free Software Foundation, Inc. +/* Copyright (C) 1996-2004, 2007-2009, 2010 Free Software Foundation, Inc. This file is part of the GNU C Library. Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -198,21 +198,27 @@ _nss_dns_gethostbyname3_r (const char *name, int af, struct hostent *result, 1024, &host_buffer.ptr, NULL, NULL, NULL); if (n < 0) { - if (errno == ESRCH) + switch (errno) { + case ESRCH: status = NSS_STATUS_TRYAGAIN; h_errno = TRY_AGAIN; + break; + 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); *h_errnop = h_errno; if (h_errno == TRY_AGAIN) *errnop = EAGAIN; else __set_errno (olderr); - /* If we are looking for a IPv6 address and mapping is enabled + /* If we are looking for an IPv6 address and mapping is enabled by having the RES_USE_INET6 bit in _res.options set, we try another lookup. */ if (af == AF_INET6 && (_res.options & RES_USE_INET6)) |