1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2007, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
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.
13 *
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.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 * $Id: hostsyn.c,v 1.14 2008-09-29 21:44:50 danf Exp $
22 ***************************************************************************/
23
24 #include "setup.h"
25
26 #include <string.h>
27
28 #ifdef NEED_MALLOC_H
29 #include <malloc.h>
30 #endif
31 #ifdef HAVE_SYS_SOCKET_H
32 #include <sys/socket.h>
33 #endif
34 #ifdef HAVE_NETINET_IN_H
35 #include <netinet/in.h>
36 #endif
37 #ifdef HAVE_NETDB_H
38 #include <netdb.h>
39 #endif
40 #ifdef HAVE_ARPA_INET_H
41 #include <arpa/inet.h>
42 #endif
43 #ifdef HAVE_STDLIB_H
44 #include <stdlib.h> /* required for free() prototypes */
45 #endif
46 #ifdef HAVE_UNISTD_H
47 #include <unistd.h> /* for the close() proto */
48 #endif
49 #ifdef VMS
50 #include <in.h>
51 #include <inet.h>
52 #include <stdlib.h>
53 #endif
54
55 #ifdef HAVE_PROCESS_H
56 #include <process.h>
57 #endif
58
59 #include "urldata.h"
60 #include "sendf.h"
61 #include "hostip.h"
62 #include "hash.h"
63 #include "share.h"
64 #include "strerror.h"
65 #include "url.h"
66
67 #define _MPRINTF_REPLACE /* use our functions only */
68 #include <curl/mprintf.h>
69
70 #include "memory.h"
71 /* The last #include file should be: */
72 #include "memdebug.h"
73
74 /***********************************************************************
75 * Only for builds using synchronous name resolves
76 **********************************************************************/
77 #ifdef CURLRES_SYNCH
78
79 /*
80 * Curl_wait_for_resolv() for synch-builds. Curl_resolv() can never return
81 * wait==TRUE, so this function will never be called. If it still gets called,
82 * we return failure at once.
83 *
84 * We provide this function only to allow multi.c to remain unaware if we are
85 * doing asynch resolves or not.
86 */
Curl_wait_for_resolv(struct connectdata * conn,struct Curl_dns_entry ** entry)87 CURLcode Curl_wait_for_resolv(struct connectdata *conn,
88 struct Curl_dns_entry **entry)
89 {
90 (void)conn;
91 *entry=NULL;
92 return CURLE_COULDNT_RESOLVE_HOST;
93 }
94
95 /*
96 * This function will never be called when synch-built. If it still gets
97 * called, we return failure at once.
98 *
99 * We provide this function only to allow multi.c to remain unaware if we are
100 * doing asynch resolves or not.
101 */
Curl_is_resolved(struct connectdata * conn,struct Curl_dns_entry ** dns)102 CURLcode Curl_is_resolved(struct connectdata *conn,
103 struct Curl_dns_entry **dns)
104 {
105 (void)conn;
106 *dns = NULL;
107
108 return CURLE_COULDNT_RESOLVE_HOST;
109 }
110
111 /*
112 * We just return OK, this function is never actually used for synch builds.
113 * It is present here to keep #ifdefs out from multi.c
114 */
115
Curl_resolv_getsock(struct connectdata * conn,curl_socket_t * sock,int numsocks)116 int Curl_resolv_getsock(struct connectdata *conn,
117 curl_socket_t *sock,
118 int numsocks)
119 {
120 (void)conn;
121 (void)sock;
122 (void)numsocks;
123
124 return 0; /* no bits since we don't use any socks */
125 }
126
127 #endif /* truly sync */
128