1/*
2 * Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
3 * All rights reserved.
4 *
5 * By using this file, you agree to the terms and conditions set
6 * forth in the LICENSE file which can be found at the top level of
7 * the sendmail distribution.
8 *
9 */
10
11#ifndef lint
| 1/*
2 * Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
3 * All rights reserved.
4 *
5 * By using this file, you agree to the terms and conditions set
6 * forth in the LICENSE file which can be found at the top level of
7 * the sendmail distribution.
8 *
9 */
10
11#ifndef lint
|
12static char id[] = "@(#)$Id: sm_gethost.c,v 8.7.8.2 2000/09/17 17:04:24 gshapiro Exp $";
| 12static char id[] = "@(#)$Id: sm_gethost.c,v 8.7.8.4 2000/12/19 04:26:33 gshapiro Exp $";
|
13#endif /* ! lint */
14
15#if _FFR_MILTER
16#include <sendmail.h>
17#if NETINET || NETINET6
18# include <arpa/inet.h>
19#endif /* NETINET || NETINET6 */
20
21 /*
22** MI_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX
23**
24** Some operating systems have wierd problems with the gethostbyXXX
25** routines. For example, Solaris versions at least through 2.3
26** don't properly deliver a canonical h_name field. This tries to
27** work around these problems.
28**
29** Support IPv6 as well as IPv4.
30*/
31
32#if NETINET6 && NEEDSGETIPNODE && __RES < 19990909
33
34# ifndef AI_V4MAPPED
35# define AI_V4MAPPED 0 /* dummy */
36# endif /* ! AI_V4MAPPED */
37# ifndef AI_ALL
38# define AI_ALL 0 /* dummy */
39# endif /* ! AI_ALL */
40
41static struct hostent *
42getipnodebyname(name, family, flags, err)
43 char *name;
44 int family;
45 int flags;
46 int *err;
47{
48 bool resv6 = TRUE;
49 struct hostent *h;
50
51 if (family == AF_INET6)
52 {
53 /* From RFC2133, section 6.1 */
54 resv6 = bitset(RES_USE_INET6, _res.options);
55 _res.options |= RES_USE_INET6;
56 }
57 h_errno = 0;
58 h = gethostbyname(name);
59 *err = h_errno;
60 if (family == AF_INET6 && !resv6)
61 _res.options &= ~RES_USE_INET6;
62 return h;
63}
| 13#endif /* ! lint */
14
15#if _FFR_MILTER
16#include <sendmail.h>
17#if NETINET || NETINET6
18# include <arpa/inet.h>
19#endif /* NETINET || NETINET6 */
20
21 /*
22** MI_GETHOSTBY{NAME,ADDR} -- compatibility routines for gethostbyXXX
23**
24** Some operating systems have wierd problems with the gethostbyXXX
25** routines. For example, Solaris versions at least through 2.3
26** don't properly deliver a canonical h_name field. This tries to
27** work around these problems.
28**
29** Support IPv6 as well as IPv4.
30*/
31
32#if NETINET6 && NEEDSGETIPNODE && __RES < 19990909
33
34# ifndef AI_V4MAPPED
35# define AI_V4MAPPED 0 /* dummy */
36# endif /* ! AI_V4MAPPED */
37# ifndef AI_ALL
38# define AI_ALL 0 /* dummy */
39# endif /* ! AI_ALL */
40
41static struct hostent *
42getipnodebyname(name, family, flags, err)
43 char *name;
44 int family;
45 int flags;
46 int *err;
47{
48 bool resv6 = TRUE;
49 struct hostent *h;
50
51 if (family == AF_INET6)
52 {
53 /* From RFC2133, section 6.1 */
54 resv6 = bitset(RES_USE_INET6, _res.options);
55 _res.options |= RES_USE_INET6;
56 }
57 h_errno = 0;
58 h = gethostbyname(name);
59 *err = h_errno;
60 if (family == AF_INET6 && !resv6)
61 _res.options &= ~RES_USE_INET6;
62 return h;
63}
|
| 64
65# if _FFR_FREEHOSTENT
66void
67freehostent(h)
68 struct hostent *h;
69{
70 /*
71 ** Stub routine -- if they don't have getipnodeby*(),
72 ** they probably don't have the free routine either.
73 */
74
75 return;
76}
77# endif /* _FFR_FREEHOSTENT */
|
64#endif /* NEEDSGETIPNODE && NETINET6 && __RES < 19990909 */
65
66struct hostent *
67mi_gethostbyname(name, family)
68 char *name;
69 int family;
70{
71 struct hostent *h = NULL;
72#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4))
73# if SOLARIS == 20300 || SOLARIS == 203
74 static struct hostent hp;
75 static char buf[1000];
76 extern struct hostent *_switch_gethostbyname_r();
77
78 h = _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno);
79# else /* SOLARIS == 20300 || SOLARIS == 203 */
80 extern struct hostent *__switch_gethostbyname();
81
82 h = __switch_gethostbyname(name);
83# endif /* SOLARIS == 20300 || SOLARIS == 203 */
84#else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
85# if NETINET6
86 int err;
87# endif /* NETINET6 */
88
89# if NETINET6
90 h = getipnodebyname(name, family, AI_V4MAPPED|AI_ALL, &err);
91 h_errno = err;
92# else /* NETINET6 */
93 h = gethostbyname(name);
94# endif /* NETINET6 */
95
96#endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
97 return h;
98}
99#endif /* _FFR_MILTER */
| 78#endif /* NEEDSGETIPNODE && NETINET6 && __RES < 19990909 */
79
80struct hostent *
81mi_gethostbyname(name, family)
82 char *name;
83 int family;
84{
85 struct hostent *h = NULL;
86#if (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4))
87# if SOLARIS == 20300 || SOLARIS == 203
88 static struct hostent hp;
89 static char buf[1000];
90 extern struct hostent *_switch_gethostbyname_r();
91
92 h = _switch_gethostbyname_r(name, &hp, buf, sizeof(buf), &h_errno);
93# else /* SOLARIS == 20300 || SOLARIS == 203 */
94 extern struct hostent *__switch_gethostbyname();
95
96 h = __switch_gethostbyname(name);
97# endif /* SOLARIS == 20300 || SOLARIS == 203 */
98#else /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
99# if NETINET6
100 int err;
101# endif /* NETINET6 */
102
103# if NETINET6
104 h = getipnodebyname(name, family, AI_V4MAPPED|AI_ALL, &err);
105 h_errno = err;
106# else /* NETINET6 */
107 h = gethostbyname(name);
108# endif /* NETINET6 */
109
110#endif /* (SOLARIS > 10000 && SOLARIS < 20400) || (defined(SOLARIS) && SOLARIS < 204) || (defined(sony_news) && defined(__svr4)) */
111 return h;
112}
113#endif /* _FFR_MILTER */
|