summaryrefslogtreecommitdiffstats
path: root/lib/gethostbyname.c
diff options
context:
space:
mode:
authorJeremy T. Bouse <undrgrid@users.sourceforge.net>2003-03-15 01:25:35 (GMT)
committerJeremy T. Bouse <undrgrid@users.sourceforge.net>2003-03-15 01:25:35 (GMT)
commit11b35b92e3195d230bef359f6a0679ae4414716b (patch)
treef4911e5804c1f3037dcf63bbbf0b823c5ac19e5f /lib/gethostbyname.c
parent6cf5fc3c74c0bdfef6c4cc1b627578378ad3a407 (diff)
downloadmonitoring-plugins-11b35b92e3195d230bef359f6a0679ae4414716b.tar.gz
Spent the day working on backwards compatability using getaddrinfo()
Moved getaddrinfo.? and gethostbyname.? from lib/ to plugins/ due to problems with compiling into the libnagiosplug.a as it required linking against socket libraries which are unneeded except for network based plugins. This code should hopefully happily work for all systems and has been tested prior to commit on Debian GNU/Linux, SPARC Solaris 7 and SPARC Solaris 9. git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@424 f882894a-f735-0410-b71e-b25c423dba1c
Diffstat (limited to 'lib/gethostbyname.c')
-rw-r--r--lib/gethostbyname.c228
1 files changed, 0 insertions, 228 deletions
diff --git a/lib/gethostbyname.c b/lib/gethostbyname.c
deleted file mode 100644
index d151606..0000000
--- a/lib/gethostbyname.c
+++ /dev/null
@@ -1,228 +0,0 @@
1/*
2 * This file is a ghastly hack because nobody can agree on
3 * gethostbyname_r()'s prototype.
4 *
5 * Copyright (C) 2001,2002 Brian Stafford <brian@stafford.uklinux.net>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifdef HAVE_CONFIG_H
23#include <config.h>
24#endif
25
26#define _SVID_SOURCE 1 /* Need this to get gethostbyname_r() */
27
28#include <assert.h>
29
30#include <stdlib.h>
31#include <string.h>
32#include <netdb.h>
33#include <errno.h>
34
35#include "gethostbyname.h"
36
37#if HAVE_GETIPNODEBYNAME
38
39void
40free_ghbnctx (struct ghbnctx *ctx)
41{
42 assert (ctx != NULL);
43
44 if (ctx->hostent != NULL)
45 freehostent (ctx->hostent);
46}
47
48struct hostent *
49gethostbyname_ctx (const char *host, struct ghbnctx *ctx)
50{
51 assert (ctx != NULL);
52
53 memset (ctx, 0, sizeof (struct ghbnctx));
54 ctx->hostent = getipnodebyname (host, AF_UNSPEC, AI_ADDRCONFIG, &ctx->h_err);
55 return ctx->hostent;
56}
57
58int
59h_error_ctx (struct ghbnctx *ctx)
60{
61 assert (ctx != NULL);
62
63 return ctx->h_err;
64}
65
66#elif HAVE_GETHOSTBYNAME_R == 6
67
68void
69free_ghbnctx (struct ghbnctx *ctx)
70{
71 assert (ctx != NULL);
72
73 if (ctx->hostbuf != NULL)
74 free (ctx->hostbuf);
75}
76
77struct hostent *
78gethostbyname_ctx (const char *host, struct ghbnctx *ctx)
79{
80 struct hostent *hp;
81 char *tmp;
82 int err;
83
84 assert (ctx != NULL);
85
86 memset (ctx, 0, sizeof (struct ghbnctx));
87 ctx->hostbuf_len = 2048;
88 if ((ctx->hostbuf = malloc (ctx->hostbuf_len)) == NULL)
89 {
90 errno = ENOMEM;
91 return NULL;
92 }
93 while ((err = gethostbyname_r (host,
94 &ctx->hostent, ctx->hostbuf, ctx->hostbuf_len,
95 &hp, &ctx->h_err)) == ERANGE)
96 {
97 ctx->hostbuf_len += 1024;
98 if ((tmp = realloc (ctx->hostbuf, ctx->hostbuf_len)) == NULL)
99 {
100 errno = ENOMEM;
101 return NULL;
102 }
103 ctx->hostbuf = tmp;
104 }
105 if (err != 0)
106 {
107 errno = err;
108 return NULL;
109 }
110 return hp;
111}
112
113int
114h_error_ctx (struct ghbnctx *ctx)
115{
116 assert (ctx != NULL);
117
118 return ctx->h_err;
119}
120
121#elif HAVE_GETHOSTBYNAME_R == 5
122
123void
124free_ghbnctx (struct ghbnctx *ctx)
125{
126 assert (ctx != NULL);
127
128 if (ctx->hostbuf != NULL)
129 free (ctx->hostbuf);
130}
131
132struct hostent *
133gethostbyname_ctx (const char *host, struct ghbnctx *ctx)
134{
135 struct hostent *hp;
136 char *tmp;
137
138 assert (ctx != NULL);
139
140 memset (ctx, 0, sizeof (struct ghbnctx));
141 ctx->hostbuf_len = 2048;
142 if ((ctx->hostbuf = malloc (ctx->hostbuf_len)) == NULL)
143 {
144 errno = ENOMEM;
145 return NULL;
146 }
147 while ((hp = gethostbyname_r (host, &ctx->hostent,
148 ctx->hostbuf, ctx->hostbuf_len,
149 &ctx->h_err)) == NULL && errno == ERANGE)
150 {
151 ctx->hostbuf_len += 1024;
152 if ((tmp = realloc (ctx->hostbuf, ctx->hostbuf_len)) == NULL)
153 {
154 errno = ENOMEM;
155 return NULL;
156 }
157 ctx->hostbuf = tmp;
158 }
159 return hp;
160}
161
162int
163h_error_ctx (struct ghbnctx *ctx)
164{
165 assert (ctx != NULL);
166
167 return ctx->h_err;
168}
169
170#elif HAVE_GETHOSTBYNAME_R == 3
171
172void
173free_ghbnctx (struct ghbnctx *ctx)
174{
175 assert (ctx != NULL);
176
177 /* FIXME: does this need to do anything? */
178}
179
180struct hostent *
181gethostbyname_ctx (const char *host, struct ghbnctx *ctx)
182{
183 assert (ctx != NULL);
184
185 if (!gethostbyname_r (host, &ctx->hostent, &ctx->hostent_data))
186 {
187 ctx->h_err = h_errno; /* FIXME: is this correct? */
188 return NULL;
189 }
190 return &ctx->hostent;
191}
192
193int
194h_error_ctx (struct ghbnctx *ctx)
195{
196 assert (ctx != NULL);
197
198 return ctx->h_err;
199}
200
201#else
202
203void
204free_ghbnctx (struct ghbnctx *ctx __attribute__ ((unused)))
205{
206 assert (ctx != NULL);
207}
208
209struct hostent *
210gethostbyname_ctx (const char *host, struct ghbnctx *ctx)
211{
212 struct hostent *hp;
213
214 hp = gethostbyname (host);
215 if (hp == NULL)
216 ctx->h_err = h_errno;
217 return hp;
218}
219
220int
221h_error_ctx (struct ghbnctx *ctx)
222{
223 assert (ctx != NULL);
224
225 return ctx->h_err;
226}
227
228#endif