1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
21 ***************************************************************************/
22 #include "server_setup.h"
26 * Resolve the given name, using system name resolve functions (NOT any
27 * function provided by libcurl). Used to see if the name exists and thus if
28 * we can allow a test case to use it for testing.
30 * Like if 'localhost' actual exists etc.
40 #ifdef HAVE_SYS_TYPES_H
41 #include <sys/types.h>
43 #ifdef HAVE_SYS_SOCKET_H
44 #include <sys/socket.h>
46 #ifdef HAVE_NETINET_IN_H
47 #include <netinet/in.h>
49 #ifdef _XOPEN_SOURCE_EXTENDED
50 /* This define is "almost" required to build on HPUX 11 */
51 #include <arpa/inet.h>
57 #define ENABLE_CURLX_PRINTF
58 /* make the curlx header define all printf() functions to use the curlx_*
60 #include "curlx.h" /* from the private lib dir */
63 /* include memdebug.h last */
66 static bool use_ipv6 = FALSE;
67 static const char *ipv_inuse = "IPv4";
69 const char *serverlogfile=""; /* for a util.c function we don't use */
71 int main(int argc, char *argv[])
74 const char *host = NULL;
78 if(!strcmp("--version", argv[arg])) {
79 printf("resolve IPv4%s\n",
88 else if(!strcmp("--ipv6", argv[arg])) {
93 else if(!strcmp("--ipv4", argv[arg])) {
94 /* for completeness, we support this option as well */
104 puts("Usage: resolve [option] <host>\n"
116 atexit(win32_cleanup);
120 /* gethostbyname() resolve */
123 he = gethostbyname(host);
129 /* Check that the system has IPv6 enabled before checking the resolver */
130 curl_socket_t s = socket(PF_INET6, SOCK_DGRAM, 0);
131 if(s == CURL_SOCKET_BAD)
132 /* an ipv6 address was requested and we can't get/use one */
139 /* getaddrinfo() resolve */
141 struct addrinfo hints;
143 memset(&hints, 0, sizeof(hints));
144 hints.ai_family = PF_INET6;
145 hints.ai_socktype = SOCK_STREAM;
146 hints.ai_flags = AI_CANONNAME;
147 /* Use parenthesis around function to stop it from being replaced by
148 the macro in memdebug.h */
149 rc = (getaddrinfo)(host, "80", &hints, &ai);
153 puts("IPv6 support has been disabled in this program");
158 printf("Resolving %s '%s' didn't work\n", ipv_inuse, host);