/* * This file is a ghastly hack because nobody can agree on * gethostbyname_r()'s prototype. * * Copyright (C) 2001,2002 Brian Stafford <brian@stafford.uklinux.net> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /************************************************************************* Usage: #include <errno.h> #include "gethostbyname.h" f () { struct ghbnctx ctx; errno = 0; hp = gethostbyname_ctx (host, &ctx); if (hp == NULL) { if (errno != 0) handle_value_of_errno (errno); else handle_value_of_h_errno (h_error_ctx (&ctx)); } else { ... } free_ghbnctx (&ctx); } *************************************************************************/ #ifndef _gethostbyname_h #define _gethostbyname_h #if HAVE_GETIPNODEBYNAME struct ghbnctx { int h_err; struct hostent *hostent; }; #elif HAVE_GETHOSTBYNAME_R == 6 struct ghbnctx { int h_err; struct hostent hostent; char *hostbuf; size_t hostbuf_len; }; #elif HAVE_GETHOSTBYNAME_R == 5 struct ghbnctx { int h_err; struct hostent hostent; char *hostbuf; int hostbuf_len; }; #elif HAVE_GETHOSTBYNAME_R == 3 struct ghbnctx { int h_err; struct hostent_data hostent_data; struct hostent hostent; }; #else struct ghbnctx { int h_err; }; #endif struct hostent *gethostbyname_ctx (const char *host, struct ghbnctx *ctx); int h_error_ctx (struct ghbnctx *ctx); void free_ghbnctx (struct ghbnctx *ctx); #endif