1 #ifndef HEADER_CARES_SETUP_H 2 #define HEADER_CARES_SETUP_H 3 4 5 /* Copyright (C) 2004 - 2009 by Daniel Stenberg et al 6 * 7 * Permission to use, copy, modify, and distribute this software and its 8 * documentation for any purpose and without fee is hereby granted, provided 9 * that the above copyright notice appear in all copies and that both that 10 * copyright notice and this permission notice appear in supporting 11 * documentation, and that the name of M.I.T. not be used in advertising or 12 * publicity pertaining to distribution of the software without specific, 13 * written prior permission. M.I.T. makes no representations about the 14 * suitability of this software for any purpose. It is provided "as is" 15 * without express or implied warranty. 16 */ 17 18 /* 19 * Define WIN32 when build target is Win32 API 20 */ 21 22 #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) 23 #define WIN32 24 #endif 25 26 /* 27 * Include configuration script results or hand-crafted 28 * configuration file for platforms which lack config tool. 29 */ 30 31 #ifdef HAVE_CONFIG_H 32 #include "ares_config.h" 33 #else 34 35 #ifdef WIN32 36 #include "config-win32.h" 37 #endif 38 39 #endif /* HAVE_CONFIG_H */ 40 41 /* ================================================================ */ 42 /* Definition of preprocessor macros/symbols which modify compiler */ 43 /* behaviour or generated code characteristics must be done here, */ 44 /* as appropriate, before any system header file is included. It is */ 45 /* also possible to have them defined in the config file included */ 46 /* before this point. As a result of all this we frown inclusion of */ 47 /* system header files in our config files, avoid this at any cost. */ 48 /* ================================================================ */ 49 50 /* 51 * AIX 4.3 and newer needs _THREAD_SAFE defined to build 52 * proper reentrant code. Others may also need it. 53 */ 54 55 #ifdef NEED_THREAD_SAFE 56 # ifndef _THREAD_SAFE 57 # define _THREAD_SAFE 58 # endif 59 #endif 60 61 /* 62 * Tru64 needs _REENTRANT set for a few function prototypes and 63 * things to appear in the system header files. Unixware needs it 64 * to build proper reentrant code. Others may also need it. 65 */ 66 67 #ifdef NEED_REENTRANT 68 # ifndef _REENTRANT 69 # define _REENTRANT 70 # endif 71 #endif 72 73 /* ================================================================ */ 74 /* If you need to include a system header file for your platform, */ 75 /* please, do it beyond the point further indicated in this file. */ 76 /* ================================================================ */ 77 78 /* 79 * c-ares external interface definitions are also used internally, 80 * and might also include required system header files to define them. 81 */ 82 83 #include <ares_build.h> 84 85 /* 86 * Compile time sanity checks must also be done when building the library. 87 */ 88 89 #include <ares_rules.h> 90 91 /* ================================================================= */ 92 /* No system header file shall be included in this file before this */ 93 /* point. The only allowed ones are those included from ares_build.h */ 94 /* ================================================================= */ 95 96 /* 97 * Include header files for windows builds before redefining anything. 98 * Use this preproessor block only to include or exclude windows.h, 99 * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs 100 * to any other further and independent block. Under Cygwin things work 101 * just as under linux (e.g. <sys/socket.h>) and the winsock headers should 102 * never be included when __CYGWIN__ is defined. configure script takes 103 * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H, 104 * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined. 105 */ 106 107 #ifdef HAVE_WINDOWS_H 108 # ifndef WIN32_LEAN_AND_MEAN 109 # define WIN32_LEAN_AND_MEAN 110 # endif 111 # include <windows.h> 112 # ifdef HAVE_WINSOCK2_H 113 # include <winsock2.h> 114 # ifdef HAVE_WS2TCPIP_H 115 # include <ws2tcpip.h> 116 # endif 117 # else 118 # ifdef HAVE_WINSOCK_H 119 # include <winsock.h> 120 # endif 121 # endif 122 #endif 123 124 /* 125 * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else 126 * define USE_WINSOCK to 1 if we have and use WINSOCK API, else 127 * undefine USE_WINSOCK. 128 */ 129 130 #undef USE_WINSOCK 131 132 #ifdef HAVE_WINSOCK2_H 133 # define USE_WINSOCK 2 134 #else 135 # ifdef HAVE_WINSOCK_H 136 # define USE_WINSOCK 1 137 # endif 138 #endif 139 140 /* 141 * Work-arounds for systems without configure support 142 */ 143 144 #ifndef HAVE_CONFIG_H 145 146 #if !defined(HAVE_SYS_TIME_H) && !defined(_MSC_VER) && !defined(__WATCOMC__) 147 #define HAVE_SYS_TIME_H 148 #endif 149 150 #if !defined(HAVE_UNISTD_H) && !defined(_MSC_VER) 151 #define HAVE_UNISTD_H 1 152 #endif 153 154 #if !defined(HAVE_SYS_UIO_H) && !defined(WIN32) && !defined(MSDOS) 155 #define HAVE_SYS_UIO_H 156 #endif 157 158 #endif /* HAVE_CONFIG_H */ 159 160 #ifdef __POCC__ 161 # include <sys/types.h> 162 # include <unistd.h> 163 # define ESRCH 3 164 #endif 165 166 /* 167 * Recent autoconf versions define these symbols in ares_config.h. We don't 168 * want them (since they collide with the libcurl ones when we build 169 * --enable-debug) so we undef them again here. 170 */ 171 172 #undef PACKAGE_STRING 173 #undef PACKAGE_TARNAME 174 #undef PACKAGE_VERSION 175 #undef PACKAGE_BUGREPORT 176 #undef PACKAGE_NAME 177 #undef VERSION 178 #undef PACKAGE 179 180 /* IPv6 compatibility */ 181 #if !defined(HAVE_AF_INET6) 182 #if defined(HAVE_PF_INET6) 183 #define AF_INET6 PF_INET6 184 #else 185 #define AF_INET6 AF_MAX+1 186 #endif 187 #endif 188 189 /* 190 * Include macros and defines that should only be processed once. 191 */ 192 193 #ifndef __SETUP_ONCE_H 194 #include "setup_once.h" 195 #endif 196 197 #endif /* HEADER_CARES_SETUP_H */ 198
