1 /*
2  * Unix SMB/CIFS implementation.
3  *
4  * libreplace getifaddrs test
5  *
6  * Copyright (C) Michael Adam <obnox@samba.org> 2008
7  *
8  *   ** NOTE! The following LGPL license applies to the replace
9  *   ** library. This does NOT imply that all of Samba is released
10  *   ** under the LGPL
11  *
12  * This library is free software; you can redistribute it and/or
13  * modify it under the terms of the GNU Lesser General Public
14  * License as published by the Free Software Foundation; either
15  * version 3 of the License, or (at your option) any later version.
16  *
17  * This library is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
20  * Library General Public License for more details.
21  *
22  * You should have received a copy of the GNU Lesser General Public
23  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
24  */
25 
26 #ifndef AUTOCONF_TEST
27 #include "replace.h"
28 #include "system/network.h"
29 #include "replace-test.h"
30 #endif
31 
32 #ifdef HAVE_INET_NTOP
33 #define rep_inet_ntop inet_ntop
34 #endif
35 
format_sockaddr(struct sockaddr * addr,char * addrstring,socklen_t addrlen)36 static const char *format_sockaddr(struct sockaddr *addr,
37 				   char *addrstring,
38 				   socklen_t addrlen)
39 {
40 	const char *result = NULL;
41 
42 	if (addr->sa_family == AF_INET) {
43 		result = rep_inet_ntop(AF_INET,
44 				       &((struct sockaddr_in *)addr)->sin_addr,
45 				       addrstring,
46 				       addrlen);
47 #ifdef HAVE_STRUCT_SOCKADDR_IN6
48 	} else if (addr->sa_family == AF_INET6) {
49 		result = rep_inet_ntop(AF_INET6,
50 				       &((struct sockaddr_in6 *)addr)->sin6_addr,
51 				       addrstring,
52 				       addrlen);
53 #endif
54 	}
55 	return result;
56 }
57 
getifaddrs_test(void)58 int getifaddrs_test(void)
59 {
60 	struct ifaddrs *ifs = NULL;
61 	struct ifaddrs *ifs_head = NULL;
62 	int ret;
63 
64 	ret = getifaddrs(&ifs);
65 	ifs_head = ifs;
66 	if (ret != 0) {
67 		fprintf(stderr, "getifaddrs() failed: %s\n", strerror(errno));
68 		return 1;
69 	}
70 
71 	while (ifs) {
72 		printf("%-10s ", ifs->ifa_name);
73 		if (ifs->ifa_addr != NULL) {
74 			char addrstring[INET6_ADDRSTRLEN];
75 			const char *result;
76 
77 			result = format_sockaddr(ifs->ifa_addr,
78 						 addrstring,
79 						 sizeof(addrstring));
80 			if (result != NULL) {
81 				printf("IP=%s ", addrstring);
82 			}
83 
84 			if (ifs->ifa_netmask != NULL) {
85 				result = format_sockaddr(ifs->ifa_netmask,
86 							 addrstring,
87 							 sizeof(addrstring));
88 				if (result != NULL) {
89 					printf("NETMASK=%s", addrstring);
90 				}
91 			} else {
92 				printf("AF=%d ", ifs->ifa_addr->sa_family);
93 			}
94 		} else {
95 			printf("<no address>");
96 		}
97 
98 		printf("\n");
99 		ifs = ifs->ifa_next;
100 	}
101 
102 	freeifaddrs(ifs_head);
103 
104 	return 0;
105 }
106