1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
***************************************************************************/
#include "setup.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "if2ip.h"
/*
* This test can probably be simplified to #if defined(SIOCGIFADDR) and
* moved after the following includes.
*/
#if !defined(WIN32) && !defined(__BEOS__) && !defined(__CYGWIN__) && \
!defined(__riscos__) && !defined(__INTERIX) && !defined(NETWARE) && \
!defined(__AMIGA__) && !defined(__minix) && !defined(__SYMBIAN32__) && \
!defined(__WATCOMC__)
#if defined(HAVE_GETIFADDRS)
/*
* glibc provides getifaddrs() to provide a list of all interfaces and their
* addresses.
*/
#include <ifaddrs.h>
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include "inet_ntop.h"
#include "strequal.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
#include "memory.h"
/* The last #include file should be: */
#include "memdebug.h"
char *Curl_if2ip(int af, const char *interface, char *buf, int buf_size)
{
struct ifaddrs *iface, *head;
char *ip=NULL;
if (getifaddrs(&head) >= 0) {
for (iface=head; iface != NULL; iface=iface->ifa_next) {
if ((iface->ifa_addr != NULL) &&
(iface->ifa_addr->sa_family == af) &&
curl_strequal(iface->ifa_name, interface)) {
void *addr;
char scope[12]="";
if (af == AF_INET6) {
unsigned int scopeid;
addr = &((struct sockaddr_in6 *)iface->ifa_addr)->sin6_addr;
/* Include the scope of this interface as part of the address */
scopeid = ((struct sockaddr_in6 *)iface->ifa_addr)->sin6_scope_id;
if (scopeid)
snprintf(scope, sizeof(scope), "%%%u", scopeid);
}
else
addr = &((struct sockaddr_in *)iface->ifa_addr)->sin_addr;
ip = (char *) Curl_inet_ntop(af, addr, buf, buf_size);
strlcat(buf, scope, buf_size);
break;
}
}
freeifaddrs(head);
}
return ip;
}
#else
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_TIME_H
/* This must be before net/if.h for AIX 3.2 to enjoy life */
#include <sys/time.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif
#ifdef VMS
#include <inet.h>
#endif
#include "inet_ntop.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
#include "memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#define SYS_ERROR -1
char *Curl_if2ip(int af, const char *interface, char *buf, int buf_size)
{
int dummy;
char *ip=NULL;
if(!interface || (af != AF_INET))
return NULL;
dummy = socket(AF_INET, SOCK_STREAM, 0);
if(SYS_ERROR == dummy) {
return NULL;
}
else {
struct ifreq req;
size_t len = strlen(interface);
memset(&req, 0, sizeof(req));
if(len >= sizeof(req.ifr_name)) {
sclose(dummy);
return NULL; /* this can't be a fine interface name */
}
memcpy(req.ifr_name, interface, len+1);
req.ifr_addr.sa_family = AF_INET;
#ifdef IOCTL_3_ARGS
if(SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req)) {
#else
if(SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req, sizeof(req))) {
#endif
sclose(dummy);
return NULL;
}
else {
struct in_addr in;
struct sockaddr_in *s = (struct sockaddr_in *)&req.ifr_dstaddr;
memcpy(&in, &s->sin_addr, sizeof(in));
ip = (char *) Curl_inet_ntop(s->sin_family, &in, buf, buf_size);
}
sclose(dummy);
}
return ip;
}
#endif
/* -- end of if2ip() -- */
#else
char *Curl_if2ip(int af, const char *interf, char *buf, int buf_size)
{
(void) af;
(void) interf;
(void) buf;
(void) buf_size;
return NULL;
}
#endif
|
