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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <arpa/inet.h>
#include <jni.h>
#include <netdb.h>
#include <stdio.h>
#include <utils/Log.h>
const char *GoogleDNSIpV4Address="8.8.8.8";
const char *GoogleDNSIpV4Address2="8.8.4.4";
const char *GoogleDNSIpV6Address="2001:4860:4860::8888";
const char *GoogleDNSIpV6Address2="2001:4860:4860::8844";
JNIEXPORT jboolean Java_android_net_cts_DnsTest_testNativeDns(JNIEnv* env, jclass class)
{
const char *node = "www.google.com";
char *service = NULL;
struct addrinfo *answer;
int res = getaddrinfo(node, service, NULL, &answer);
ALOGD("getaddrinfo(www.google.com) gave res=%d (%s)", res, gai_strerror(res));
if (res != 0) return JNI_FALSE;
// check for v4 & v6
{
int foundv4 = 0;
int foundv6 = 0;
struct addrinfo *current = answer;
while (current != NULL) {
char buf[256];
if (current->ai_addr->sa_family == AF_INET) {
inet_ntop(current->ai_family, &((struct sockaddr_in *)current->ai_addr)->sin_addr,
buf, sizeof(buf));
foundv4 = 1;
ALOGD(" %s", buf);
} else if (current->ai_addr->sa_family == AF_INET6) {
inet_ntop(current->ai_family, &((struct sockaddr_in6 *)current->ai_addr)->sin6_addr,
buf, sizeof(buf));
foundv6 = 1;
ALOGD(" %s", buf);
}
current = current->ai_next;
}
freeaddrinfo(answer);
answer = NULL;
if (foundv4 != 1 && foundv6 != 1) {
ALOGD("getaddrinfo(www.google.com) didn't find either v4 or v6 address");
return JNI_FALSE;
}
}
node = "ipv6.google.com";
res = getaddrinfo(node, service, NULL, &answer);
ALOGD("getaddrinfo(ipv6.google.com) gave res=%d", res);
if (res != 0) return JNI_FALSE;
{
int foundv4 = 0;
int foundv6 = 0;
struct addrinfo *current = answer;
while (current != NULL) {
char buf[256];
if (current->ai_addr->sa_family == AF_INET) {
inet_ntop(current->ai_family, &((struct sockaddr_in *)current->ai_addr)->sin_addr,
buf, sizeof(buf));
ALOGD(" %s", buf);
foundv4 = 1;
} else if (current->ai_addr->sa_family == AF_INET6) {
inet_ntop(current->ai_family, &((struct sockaddr_in6 *)current->ai_addr)->sin6_addr,
buf, sizeof(buf));
ALOGD(" %s", buf);
foundv6 = 1;
}
current = current->ai_next;
}
freeaddrinfo(answer);
answer = NULL;
if (foundv4 == 1 || foundv6 != 1) {
ALOGD("getaddrinfo(ipv6.google.com) didn't find only v6");
return JNI_FALSE;
}
}
// getnameinfo
struct sockaddr_in sa4;
sa4.sin_family = AF_INET;
sa4.sin_port = 0;
inet_pton(AF_INET, GoogleDNSIpV4Address, &(sa4.sin_addr));
struct sockaddr_in6 sa6;
sa6.sin6_family = AF_INET6;
sa6.sin6_port = 0;
sa6.sin6_flowinfo = 0;
sa6.sin6_scope_id = 0;
inet_pton(AF_INET6, GoogleDNSIpV6Address2, &(sa6.sin6_addr));
char buf[NI_MAXHOST];
int flags = NI_NAMEREQD;
res = getnameinfo((const struct sockaddr*)&sa4, sizeof(sa4), buf, sizeof(buf), NULL, 0, flags);
if (res != 0) {
ALOGD("getnameinfo(%s (GoogleDNS) ) gave error %d (%s)", GoogleDNSIpV4Address, res,
gai_strerror(res));
return JNI_FALSE;
}
if (strstr(buf, "google.com") == NULL && strstr(buf, "dns.google") == NULL) {
ALOGD("getnameinfo(%s (GoogleDNS) ) didn't return google.com or dns.google: %s",
GoogleDNSIpV4Address, buf);
return JNI_FALSE;
}
memset(buf, sizeof(buf), 0);
res = getnameinfo((const struct sockaddr*)&sa6, sizeof(sa6), buf, sizeof(buf), NULL, 0, flags);
if (res != 0) {
ALOGD("getnameinfo(%s (GoogleDNS) ) gave error %d (%s)", GoogleDNSIpV6Address2,
res, gai_strerror(res));
return JNI_FALSE;
}
if (strstr(buf, "google.com") == NULL && strstr(buf, "dns.google") == NULL) {
ALOGD("getnameinfo(%s (GoogleDNS) ) didn't return google.com or dns.google: %s",
GoogleDNSIpV6Address2, buf);
return JNI_FALSE;
}
// gethostbyname
struct hostent *my_hostent = gethostbyname("www.youtube.com");
if (my_hostent == NULL) {
ALOGD("gethostbyname(www.youtube.com) gave null response");
return JNI_FALSE;
}
if ((my_hostent->h_addr_list == NULL) || (*my_hostent->h_addr_list == NULL)) {
ALOGD("gethostbyname(www.youtube.com) gave 0 addresses");
return JNI_FALSE;
}
{
char **current = my_hostent->h_addr_list;
while (*current != NULL) {
char buf[256];
inet_ntop(my_hostent->h_addrtype, *current, buf, sizeof(buf));
ALOGD("gethostbyname(www.youtube.com) gave %s", buf);
current++;
}
}
// gethostbyaddr
char addr6[16];
inet_pton(AF_INET6, GoogleDNSIpV6Address, addr6);
my_hostent = gethostbyaddr(addr6, sizeof(addr6), AF_INET6);
if (my_hostent == NULL) {
ALOGD("gethostbyaddr(%s (GoogleDNS) ) gave null response", GoogleDNSIpV6Address);
return JNI_FALSE;
}
ALOGD("gethostbyaddr(%s (GoogleDNS) ) gave %s for name", GoogleDNSIpV6Address,
my_hostent->h_name ? my_hostent->h_name : "null");
if (my_hostent->h_name == NULL) return JNI_FALSE;
return JNI_TRUE;
}
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