annotate src/dns.c @ 0:d39e1d0d75b6

initial add
author paulo@hit-nxdomain.opendns.com
date Sat, 20 Feb 2010 21:18:28 -0800
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paulo@0 1 /*
paulo@0 2 * $Id: dns.c,v 1.2 2003/12/26 12:02:20 mkern Exp $
paulo@0 3 *
paulo@0 4 * Copyright (C) 2003 giFT project (gift.sourceforge.net)
paulo@0 5 *
paulo@0 6 * This program is free software; you can redistribute it and/or modify it
paulo@0 7 * under the terms of the GNU General Public License as published by the
paulo@0 8 * Free Software Foundation; either version 2, or (at your option) any
paulo@0 9 * later version.
paulo@0 10 *
paulo@0 11 * This program is distributed in the hope that it will be useful, but
paulo@0 12 * WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
paulo@0 14 * General Public License for more details.
paulo@0 15 */
paulo@0 16
paulo@0 17 #include "gt_gnutella.h"
paulo@0 18 #include "dns.h"
paulo@0 19
paulo@0 20 /*****************************************************************************/
paulo@0 21
paulo@0 22 struct hostent *gt_dns_lookup (const char *name)
paulo@0 23 {
paulo@0 24 return gethostbyname (name);
paulo@0 25 }
paulo@0 26
paulo@0 27 int gt_dns_get_errno (void)
paulo@0 28 {
paulo@0 29 #ifdef HAVE_HSTRERROR /* assume h_errno present if hstrerror() is */
paulo@0 30 return h_errno;
paulo@0 31 #else
paulo@0 32 #ifdef WIN32
paulo@0 33 return WSAGetLastError ();
paulo@0 34 #endif /* WIN32 */
paulo@0 35 return 0;
paulo@0 36 #endif
paulo@0 37 }
paulo@0 38
paulo@0 39 void gt_dns_set_errno (int error_code)
paulo@0 40 {
paulo@0 41 #ifdef HAVE_HSTRERROR
paulo@0 42 h_errno = 0;
paulo@0 43 #else
paulo@0 44 #ifdef WIN32
paulo@0 45 WSASetLastError (error_code);
paulo@0 46 #endif /* WIN32 */
paulo@0 47 #endif
paulo@0 48 }
paulo@0 49
paulo@0 50 const char *gt_dns_strerror (int error_code)
paulo@0 51 {
paulo@0 52 #ifdef HAVE_HSTRERROR
paulo@0 53 return hstrerror (error_code);
paulo@0 54 #else
paulo@0 55 return "Host name lookup failure";
paulo@0 56 #endif
paulo@0 57 }