1 /***************************************************************************
3 * Project ___| | | | _ \| |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
8 * Copyright (C) 1998 - 2009, 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 ***************************************************************************/
28 #ifdef HAVE_SYS_SOCKET_H
29 # include <sys/socket.h>
31 #ifdef HAVE_NETINET_IN_H
32 # include <netinet/in.h>
34 #ifdef HAVE_ARPA_INET_H
35 # include <arpa/inet.h>
40 #ifdef HAVE_SYS_IOCTL_H
41 # include <sys/ioctl.h>
46 #ifdef HAVE_SYS_SOCKIO_H
47 # include <sys/sockio.h>
59 #include "inet_ntop.h"
63 #define _MPRINTF_REPLACE /* use our functions only */
64 #include <curl/mprintf.h>
66 #include "curl_memory.h"
67 /* The last #include file should be: */
70 /* ------------------------------------------------------------------ */
72 #if defined(HAVE_GETIFADDRS)
74 char *Curl_if2ip(int af, const char *interface, char *buf, int buf_size)
76 struct ifaddrs *iface, *head;
79 if (getifaddrs(&head) >= 0) {
80 for (iface=head; iface != NULL; iface=iface->ifa_next) {
81 if ((iface->ifa_addr != NULL) &&
82 (iface->ifa_addr->sa_family == af) &&
83 curl_strequal(iface->ifa_name, interface)) {
88 unsigned int scopeid = 0;
89 addr = &((struct sockaddr_in6 *)iface->ifa_addr)->sin6_addr;
90 #ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
91 /* Include the scope of this interface as part of the address */
92 scopeid = ((struct sockaddr_in6 *)iface->ifa_addr)->sin6_scope_id;
95 snprintf(scope, sizeof(scope), "%%%u", scopeid);
99 addr = &((struct sockaddr_in *)iface->ifa_addr)->sin_addr;
100 ip = (char *) Curl_inet_ntop(af, addr, buf, buf_size);
101 strlcat(buf, scope, buf_size);
110 #elif defined(HAVE_IOCTL_SIOCGIFADDR)
112 char *Curl_if2ip(int af, const char *interface, char *buf, int buf_size)
116 struct sockaddr_in *s;
121 if(!interface || (af != AF_INET))
124 len = strlen(interface);
125 if(len >= sizeof(req.ifr_name))
128 dummy = socket(AF_INET, SOCK_STREAM, 0);
129 if(CURL_SOCKET_BAD == dummy)
132 memset(&req, 0, sizeof(req));
133 memcpy(req.ifr_name, interface, len+1);
134 req.ifr_addr.sa_family = AF_INET;
136 if(ioctl(dummy, SIOCGIFADDR, &req) < 0) {
141 s = (struct sockaddr_in *)&req.ifr_addr;
142 memcpy(&in, &s->sin_addr, sizeof(in));
143 ip = (char *) Curl_inet_ntop(s->sin_family, &in, buf, buf_size);
151 char *Curl_if2ip(int af, const char *interf, char *buf, int buf_size)