diff options
Diffstat (limited to 'resolv/nss_dns/dns-host.c')
| -rw-r--r-- | resolv/nss_dns/dns-host.c | 34 |
1 files changed, 14 insertions, 20 deletions
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c index 818a40a898..8592183f62 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)) @@ -1044,7 +1050,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname, ++had_error; continue; } - if (*firstp) + if (*firstp && canon == NULL) { h_name = buffer; buffer += h_namelen; @@ -1160,19 +1166,7 @@ gaih_getanswer_slice (const querybuf *answer, int anslen, const char *qname, if (ttl != 0 && ttlp != NULL) *ttlp = ttl; - if (canon != NULL) - { - (*pat)->name = canon; - - /* Reclaim buffer space. */ - if (h_name + h_namelen == buffer) - { - buffer = h_name; - buflen += h_namelen; - } - } - else - (*pat)->name = h_name; + (*pat)->name = canon ?: h_name; *firstp = 0; } |